阅读说明：本技术 一种用于控制甲醛释放的青柿提取产品 (A kind of green persimmon extraction product for controlling Form aldehyde release ) 是由 敖常伟 周研 马国庆 于 2018-05-21 设计创作，主要内容包括：一种用于控制甲醛释放的青柿提取产品,属于家装涂料领域。本发明所要解决的技术问题一是制作一款以青柿为提取原料的,能有效控制装修材料中甲醛释放和吸附室内环境中甲醛气体的家装涂料产品。制备过程：选取可溶性单宁含量高的未成熟青柿,清洗,去蒂,柿果破碎,榨汁,自然发酵,发酵物经过滤除杂后经大孔吸附树脂分离纯化,浓缩,得到单宁浓度为10-20%的青柿提取物。本发明所要解决的技术问题二是以制备的青柿提取物涂刷在三合板、原木板材和壁纸等材料上,能够对上述板材中的甲醛进行吸附,减少其释放量；同时涂刷在壁纸上的青柿提取物能够有效吸附空气中的甲醛气体,从而减少室内环境中有害气体含量。本发明的提出对于促进柿子资源的合理加工应用,以及家装材料所带来的室内环境污染的治理有良好的促进作用。(A kind of green persimmon extraction product for controlling Form aldehyde release, belongs to house ornamentation paint field.The technical problems to be solved by the invention first is that production it is a with green persimmon be to extract raw material, can be effectively controlled Form aldehyde release in finishing material and adsorb the house ornamentation coating products of formaldehyde gas in indoor environment.Preparation process: choosing the high prematurity blueness persimmon of soluble tannin content, and cleaning, stalk, persimmon fruit is broken, and juicing, spontaneous fermentation, fermentation material isolates and purifies after filtering and impurity removing through macroporous absorbent resin, is concentrated, and obtains the green persimmon extract that tannin concentration is 10-20%.The technical problems to be solved by the invention can adsorb the formaldehyde in above-mentioned plate, reduce its burst size second is that with the green persimmon extract brushing of preparation on the materials such as three-ply board, log board and wallpaper；The green persimmon extract brushed on wallpaper simultaneously can effectively adsorb the formaldehyde gas in air, to reduce pernicious gas content in indoor environment.The improvement of indoor environmental pollution brought by the reasonable processed and applied for being proposed for promoting persimmon resource of the invention and fitment material for family has good facilitation.)

1. a kind of green persimmon for controlling Form aldehyde release extracts product, it is characterised in that by the mature green persimmon of harvesting 8, squeezed Juice is taken, desugar of fermenting, filtering and impurity removing is obtained after isolating and purifying with the pure natural no dirt as main component of soluble tannin in green persimmon The product of dye；The green persimmon of preparation is extracted product by brushing or being sprayed on all kinds of fitment material for family surfaces, reaches absorption or barrier The release of the pernicious gases such as formaldehyde in fitment material for family, concrete condition is the following steps are included: a kind of for controlling the blueness of Form aldehyde release The preparation process of persimmon extraction product, it is characterised in that:

(1) it chooses the high green persimmon of soluble tannin content and annual July is usually selected according to the difference of mature period in all parts of the country The ripe green persimmon of the eight-ninety percent of the last ten-days period to early September (color does not bleach, turns yellow or reddens), cleaning, stalk；

(2) the green persimmon fruit after cleaning is crushed, is squeezed the juice, coarse filtration removes pericarp, and the objects such as slag obtain juice, yield 50-70%；

(3) juice obtained by step (2) is decomposed into the objects such as sugar or the pectin in juice by artificial or spontaneous fermentation 1-3 months；

(4) fermentation material obtained by step (3) is removed into yeast, the impurity such as sediment through 80-150 mesh filter-cloth filtering；

(5) product that step (4) obtain is got rid of into most of non-list in solution through macroreticular resin or the separation of other separation materials Peaceful substance；

(6) step (5) products therefrom is obtained the green persimmon that tannin concentration is 10-20% and is mentioned using vacuum concentration removal partial moisture Take product.

2. a kind of green persimmon for controlling Form aldehyde release extracts product, with stoste or distilled water can be added to be diluted to tannin concentration and be The green persimmon of 0.5-10% extracts product dilution, cover with paint, lacquer, colour wash, etc. or be sprayed on log woollen planed and sawed it is flat after the working processes such as cutting Planing surface and end face；Log expects to be suited only, sanding surface and finishing process tenon, mortise, connecting hole mill out various Line style face, curved surface and slot spring；Wood-based plate (glued board: core-board, fancy plywood, compreg plate, flame-retardant plywood Deng；Particieboard: homogeneous chipboard, flake board, coining particle product, inorganic adhesive particieboard etc.；Fiberboard etc.) and people The woodworks such as plate surface decoration are made, its formaldehyde contained is adsorbed, according to the difference of specific environment, formaldehyde absorbing rate is 10% to 60% It differs, according to the difference for the amount and number covered with paint, lacquer, colour wash, etc. or sprayed, differs within formaldehyde absorbing effect sustainable two months to 5 years；And The performances such as the anti-flammability, anti-corrosive properties and waterproofness of above-mentioned material can be increased to a certain extent.

3. a kind of green persimmon for controlling Form aldehyde release extracts product, the table of woodwork facing paper veneer or wallpaper can be coated on The formaldehyde pernicious gas or indoor formaldehyde pernicious gas evaporated in furniture is adsorbed, according to the difference of specific environment, first in face Aldehyde absorptivity is that 10%-50% is differed；The blueness persimmon extracts product to a certain extent and can increase woodwork facing paper or wallpaper Put the performances such as waterproofness, toughness and tensile strength.

Technical field

The invention belongs to house ornamentation paint fields, and in particular to a kind of green persimmon extraction product for controlling Form aldehyde release.

Background technique

China is that maximum persimmon producing country, either yield or cultivated area occupy first place in the world in the world, still 3% of the international trade amount of money less than global trade total value.In addition, existing persimmon fruit Fruit quality degree is low, single variety in China, The only dried persimmon of traditional handicraft production, in general, China's persimmon was processed also in the traditional processing stage.Research in recent years shows Tannin contained in persimmon has good anti-oxidant, reducing blood lipid, metal adsorption isoreactivity, but is made using green persimmon , the house ornamentation coating products of Form aldehyde release are controlled, it is domestic there is not yet research report.

Formaldehyde is also known as formaldehyde, and chemical formula HCHO, for formaldehyde as a kind of primary toxin, relative molecular mass is 30, with Air 29 is very close.The gas of colourless irritating smell at normal temperature, is soluble in alcohol, water, ether, and course of dissolution is anti-with heat release It answers.Formaldehyde has very strong firewood conjunction property, has extremely strong insect prevention, corrosion-resistant performance to plate, can be used as synthesizing a variety of vigorous mixture, such as Melamine-formaldehyde, phenolic resin, amido formaldehyde resin etc..Currently, be used as the medium density fibre board (MDF) of interior decoration, core-board, All contain formaldehyde in the artificial boards such as glued board mostly.The wherein open-minded agent of the glue of wood-based plate is exactly mainly using formaldehyde as main matter Arteries and veins urea formaldehyde, and the formaldehyde that reaction is also had neither part nor lot in plate can gradually be discharged into environment, therefore these formaldehyde are to constitute room Interior air pollutants main source.Current Portakabin largely uses formaldehyde foam resin thermal insulation board, it can not only be worked as Make a kind of finishing material additive in house sealing, to keep the effect of temperature and house humidity be that many families seem perfect Selection, additionally it is possible to go along with sb. to guard him frame as building.Related data shows reachable through formaldehyde in detection mobile house 3.35mg/m3, sometimes even up to 13.4mg/m3.The country such as U.S. has put into effect relevant regulations: prohibiting in family's finishing material Only it is firewood mixture with arteries and veins urea formaldehyde with limitation, or content of formaldehyde in Related product must be being detected before.In addition example Adhesive is mostly used greatly in such as metope, furniture finishing material.So that with the extensive use of adhesive, formaldehyde gas is constantly released It puts, indoor environment influences very big.

In daily life, formaldehyde is mainly directly contacted by alimentary canal and respiratory tract and further endangers body, formaldehyde Probing into for more and more researchers has been attracted in recent years to the harm of the mankind.Retrospect is in 1970s part prosperity state It is comprehensive that family has been presented for sick Building, then starts to cause the prevention and treatment of scholars' PARA FORMALDEHYDE PRILLS(91,95) to start into probing into.But people also only It is formaldehyde to be regarded as a kind of suspecious carcinogen.The International Cancer Research Center of the World Health Organization in 2004 delivers the first of high concentration Aldehyde can cause rhinocarcinoma, laryngocarcinoma.People just start gradually formaldehyde and carry out experimental study to the harm of human body.Under normal circumstances, pure Formaldehyde there is strong and stimulating smell, not only eyes and respiratory system have intense stimulus effect, but also toxic to human body.It is modern Studies have shown that formaldehyde harm to the human body degree with not only also very strong contacted with time of contact with itself concentration.Different organs PARA FORMALDEHYDE PRILLS(91,95) sensitivity is different: eyes PARA FORMALDEHYDE PRILLS(91,95) is most sensitive, and respiratory tract then takes second place.In air, the lower thorn of the relative concentration of formaldehyde It is intense weak, on the contrary it will be obvious.Development test shows: more than 0.06mg/m³Gaseous formaldehyde generates stimulation to eyes, is higher than 6mg/ m³The intense stimulus of Shi Yinqi lung is reacted, for example is shed tears, sneezed, or even the symptoms such as bronchial spasm, conjunctivitis occur.First Aldehyde is a kind of sensitizer, has intense stimulus to skin, causes allergic reaction.Concentration of formaldehyde is 0.5mg/m to 1.0mg/m³ It can be skin allergy indoors in range.Formaldehyde hinders sweat gland normal secretions under low concentration, and skin is allowed to become more coarse, And formaldehyde can the property of another protein change, to destroy cell tissue.Consult related data: when people drinks about 2mL formalin occurs lethal immediately.Some relevant animal test researchs: it is tested using rat, finds high-concentration formaldehyde The open-minded membrane tissue of nose just changes after indoor a couple of days of only living, such as inflammation cells, necrosis.Long term time Formaldehyde Exposed causes to exhale Inhale tract epithelial cell dysplasia, hyperplasia.There are also carcinogenic, teratogenesis to human body for formaldehyde, according to investigations, Long Term Contact formaldehyde People be easy to suffer from nasopharynx, alimentary canal, skin cancer, suffer from cancer efficiency higher than general people.If women Long Term Contact low amounts formaldehyde meeting Cause paramenia, pregnancy syndrome, chromosome abnormality.The formaldehyde of high dose but will have the systems such as immune system, liver Damaging effect.Environmental Protection Agency USA (EPA) and the World Health Organization (WHO) all using this substance of formaldehyde as and its again The environmental contaminants wanted are treated and are studied, and are classified as in potential carcinogen already.International Cancer Research Center also will Formaldehyde is classified as mankind's directly acting carcinogens together, and is also used as poisonous and harmful chemicals already in China's formaldehyde, and Second is occupied in the chemicals of priority acccess control.

But under normal circumstances, what people touched indoors is all the relatively low formaldehyde substance of levels, research Show if people is lived in for a long time in the lower formaldehyde of concentration (0.017 1 0.068mg/m3) environment, though human body itself and Particularly apparent reaction is not generated, but health can there is serious harm.The method for administering formaldehyde at present has perhaps It is more, but most common method have it is following several: photocatalytic oxidation, biological method, absorption method, plasma method, unglazed metal oxygen Compound oxidizing process etc., absorption method are that the current application active carbon adsorption that removes the most universal is the most common removal of formaldehyde pollutants Technology, and that there are intensity is low, the service life is short, frangible for active carbon, easily causes many problems such as secondary pollution.

With the increase of maturity, soluble tannin can largely be transformed into insolubility tannin for tannin in persimmon, can not The extraction of soluble tannins is more difficult.Contain great amount of soluble tannin in green persimmon, since tannin is rich in ortho position phenolic hydroxyl group, It is easy to that polymerization reaction occurs with formaldehyde molecule, accordingly, by extracting the tannin in green persimmon, makes a controllable Form aldehyde release House ornamentation coating products.

In the prior art, disclosed in the Chinese patent application of Patent No. CN102580688A one entitled " one kind is gone Except the adsorbent material of indoor formaldehyde gas " patent document have with teachings herein and centainly contact, be directed to indoor formaldehyde The absorption of gas and the material invented, preparation method are by the animal glue fibril of persimmon powder and 2-5% that mass fraction is 5-8% Dimension is added to the water stirring and dissolving；The crosslinking agent (glutaraldehyde water solution) of 3-8% is added, adjusts pH value to 6-7；Reactant is existed again Heating water bath 3 hours under 50 C, filtering are dried 12 hours at 60 C, are crushed to get finished product adsorbent material is arrived.This method is deposited Defect be: soluble tannin content is lower in 1. mature persimmons and insolubility tannin is not easy to extract, and passes through vacuum The content of tannin is also seldom in freeze-drying gained persimmon powder.2. the step for have passed through vacuum drying in the production of persimmon powder, It operates relatively complicated.3. using glutaraldehyde solution as crosslinking agent in the preparation of its adsorbent material, glutaraldehyde is commonly used for gelatin The crosslinking agent of substance.However, it is a variety of research shows that glutaraldehyde has great toxicity to cell, it is glutinous for the skin of human body Film and eye are irritating.It is indicated in " glutaraldehyde studies on acute toxicity " text delivered such as Xu Chonghui et al. in 2012: penta 2 Aldehyde endangers risk significant to the inhalation hazard risk and environmental ecology of human body；For another example Xie Yue et al. was delivered in 2014 Illustrate when pentanediol is used as the crosslinking agent of gelatin materials in " research of the glutaraldehyde to osteoblast " text to mice embryonic Pre-osteoblast MC3T3-E generates toxicity and is more toxic to cell, sternly especially when its concentration is more than 0.5wt% The growth and proliferation of cell are affected again.

1 improvement in view of the foregoing drawbacks, this patent is in order to a large amount of by this effective component of persimmon tannin and efficiently extract Come, selected medium well green persimmon as raw material, by fermentation, polymerization, concentration, obtains the persimmon tannin containing high concentration and produce Product.

2 improvement in view of the foregoing drawbacks, the present invention is by preparing the formaldehyde that can be painted on artificial plate surface after concentration The step for adsorbing coating, eliminating vacuum drying or vacuum freeze drying, is greatly saved manpower, material resources and financial resources.

3 improvement in view of the foregoing drawbacks, the present invention are green persimmon extracts, have the characteristics that natural, green, and to environment without Secondary pollution.

Summary of the invention

Problem to be solved by this invention first is that production it is a with green persimmon be extraction raw material, can be effectively controlled Form aldehyde release House ornamentation coating products.

Realizing the technical solution of the object of the invention is: containing a large amount of tanning matters in green persimmon, utilizing the ortho position phenol in tannin Hydroxyl and formaldehyde carry out polymerization reaction, to remove formaldehyde harm and the pollution in house ornamentation plate.

A kind of green persimmon extraction product for controlling Form aldehyde release, its preparation method include the following steps.

(1) the high green persimmon of tannin content is chosen, the medium well green persimmon of annual August is usually selected, is cleaned, stalk.

(2) the green persimmon fruit after cleaning is crushed, is squeezed the juice, juice yield is 70% or so.

(3) by products therefrom spontaneous fermentation 1-3 months, mainly saccharomycete consumes macromolecular carbohydrate extra in green persimmon Deng.

(4) by gained fermentation material filtering and impurity removing.

(5) product of acquisition is isolated and purified through macroporous absorbent resin.

(6) it is concentrated, obtains the Form aldehyde release that can be effectively controlled that tannin concentration is 10-20%, green persimmon for family's coatings Extract product.

The present invention needs other problem solved is that being painted on house ornamentation plate surface to control using green persimmon extract Or reduce the release of formaldehyde in plate；Or wallpaper surface is painted on to adsorb formaldehyde in indoor air gas.

It is achieved through the following technical solutions.

The absorption measurement method that one, blueness persimmon extracts product PARA FORMALDEHYDE PRILLS(91,95) is established.

(1) the principle analysis list of the persimmon tannin and formalin formation gelation reaction in product is extracted using green persimmon The adsorption effect of peaceful PARA FORMALDEHYDE PRILLS(91,95): pass through the horizontal (temperature: 20,30,40 degrees Celsius of gradient of three factors three；PH: gradient 5,7, 9；Reaction time: gradient 20,30,40 minutes) response surface experiments, analyze the best suction that green persimmon extracts product and formaldehyde gel body Sub conditione.

(2) green persimmon is smeared on three-ply board and extracts its adsorption effect to formaldehyde in three-ply board of product research: according to GB/ 4.59 burst size of methanal measure in T17657-2013 test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels --- drier Method measures formaldehyde absorbing rate.1. the collection of formaldehyde: washing with water drier and crystallising dish and dry；It is the dry of 240mm in diameter Crystallising dish is placed in dry device bottom, and 300mL distilled water is added in crystallising dish, and water temperature is 20 C, and crystallising dish is then put into drying Device bottom center is placed on wire support net above crystallising dish；The sample insertion examination for having smeared green persimmon extraction product Then sample bracket is put into the bracket equipped with test specimen the center of drier inner support net, makes its surface with crystallising dish；In It is placed under 20 C for 24 hours, distilled water absorbs the formaldehyde released from test specimen；The formalin being sufficiently mixed in crystallising dish, uses formaldehyde Solution cleans single mark volumetric flask of a 100mL, is settled to 100mL, formalin measures its absorbance.2. blank Test: sample, other same previous actions are not put in drier.3. the measurement of formaldehyde mass concentration: accurate to draw 25mL first Aldehyde solution measures 25mL acetylacetone,2,4-pentanedione-ammonium acetate solution into 100mL conical flask with stopper, beyond the Great Wall bottle stopper.It is put into 65 C again Sink in heat 10min, then solution is placed under 20 C of the place of being protected from light and stores 60min.Using spectrophotometer, in 412nm The absorbance of solution is measured at wavelength.4. the production of standard curve: standard curve is according to formalin mass concentration and extinction The relationship of degree is drawn, mass concentration iodometric determination.A) formalin is demarcated: about 1mL formalin (concentration 35- 40%) it moves in 1000mL volumetric flask, and be diluted to scale with distilled water.Formalin concentration is demarcated as follows: being measured 20mL formalin and 25mL iodine standard solution (0.05mol/L), 10mL standard potassium hydroxide solution (1mol/L) are in 100mL band It mixes in plug conical flask, after standing dark place 15min, 1mol/L sulfuric acid solution 15mL is added in mixed liquor.Extra iodine It is titrated with 0.1mol/L hypo solution, when titration is close to terminal, and insertion 1% starch indicator of several drops, continue to be titrated to Until solution becomes colorless.Blank parallel test is done with 20mL distilled water simultaneously.B) formaldehyde edits solution: by the first determined in a) Aldehyde concentration of polymer solution calculates the formalin volume containing formaldehyde 3mg.The volume, which is pipetted, with pipette counts to 1000mL capacity In bottle, and it is diluted to scale with distilled water, then 1mL, which is edited, contains 3 μ g formaldehyde in solution.C) drafting of standard curve: 0mL, The formaldehyde of 5mL, 10mL, 20mL, 50mL and 100mL, which edit solution and moves respectively, to be added in 100mL volumetric flask, and is diluted with distilled water To scale.Then 25mL solution is taken out respectively, carries out absorbance measurement analysis by formaldehyde content assaying method.According to formaldehyde Mass concentration extinction situation draws standard curve.

(3) green persimmon is smeared on log board and extracts its adsorption effect to formaldehyde in log board of product research: will be green Persimmon extracts products configuration at one times, two times, four times and octuple dilution, is applied on log board, according to said determination Formaldehyde absorbing effect step in three-ply board evaluates the adsorption effect of formaldehyde in log board in 20 days.

(4) wallpaper is smeared PARA FORMALDEHYDE PRILLS(91,95) adsorption effect after green persimmon extracts product and studied: the 1. selection of wallpaper is looked for one long The wallpaper of 20.0cm wide 19.0cm is in case test application；2. green persimmon is extracted the wallpaper that product is uniformly applied to second step preparation On, after smearing finishes, wallpaper is put into baking oven with 70 degrees Celsius of constant temperature dryings, wallpaper is cut into scissors after the completion of drying It is 1/64g that the identical 64 small wallpapers of size, which are thus the tannin amounts contained on each wallpaper,；3. experimental design is divided into 5 groups of tests, 5 groups of tests are respectively that 1) the simple formalin placement to the configuration of the 4th step after ten minutes carries out its absorbance Measurement, 2) plus the small wallpaper piece made of a piece of third step react into the 4th step configured formalin and is placed after ten minutes Its absorbance is measured, 3) plus the small wallpaper piece made of two third steps it is anti-into the 4th configured formalin of step Should place and be measured after ten minutes to its absorbance, 4) plus the small wallpaper piece made of three pieces third step is configured to the 4th step Formalin in reaction place its absorbance measured after ten minutes, 5) plus the small wallpaper piece made of four third steps Into the 4th step configured formalin, reaction is placed and is measured after ten minutes to its absorbance.

Two, are as the result is shown.

(1) adsorption effect that gelation reaction analyzes that green persimmon extracts product PARA FORMALDEHYDE PRILLS(91,95) shows horizontal by three factors three (temperature: 20,30,40 degrees Celsius of gradient；PH: gradient 5,7,9；Reaction time: gradient 20,30,40 minutes) response surface It tests (Fig. 1, Fig. 2), using the experimental design of Design-Expert8.0.6.0 center combination, analysis shows green persimmon extracts product It is to react pH7,30 DEG C of temperature, time 30min with the optimal adsorption condition of formaldehyde gel body.It is average to carry out 3 verification tests Absorbance is 0.57, and light absorption value is brought into standard curve, then bringing adsorption rate calculation formula into can obtain green persimmon extraction product to first Aldehyde optimal adsorption rate is 48.2%.

(2) smear green persimmon extract product three-ply board release formaldehyde adsorption effect analysis shows that, it is small to reach 72 in reaction Shi Hou, formaldehyde in aqueous solution concentration reaches peak in closed container.As the result is shown: with the increase of concentration of formaldehyde, green persimmon is mentioned The amount of product formaldehyde adsorption is taken also gradually to be incremented by, the adsorption rate highest of stoste PARA FORMALDEHYDE PRILLS(91,95) after 72 hours brings related adsorption rate meter into Calculating formula can show that adsorption rate can be of about 60.38%(Fig. 3).

(3) the green persimmons of different extension rates product is extracted to be applied on log board, formaldehyde absorbing the results show that With the increase of adsorption time, being adsorbed on the 15th day or so for formaldehyde reaches stable in log board, and wherein doubling dilution produces Product have reached highest adsorption rate 54.07%(Fig. 4, Fig. 5 in Ahau).

(4) brush green persimmon extract product wallpaper PARA FORMALDEHYDE PRILLS(91,95) adsorption effect analysis shows, brush green persimmon and extract product For the highest adsorption rate of wallpaper PARA FORMALDEHYDE PRILLS(91,95) up to 30.79%, adsorption effect is significant (Fig. 6).

(5) Analysis on Mechanism of product formaldehyde adsorption.

1. configuring 3 to adding formaldehyde and the green persimmon of formaldehyde not being added to extract the comparison of product progress ingredient by liquid chromatography A gradient concentration is that the formalin of 10mg/mL, 100ug/mL, 10ug/mL are reacted with green persimmon extraction product, formaldehyde is not added Green persimmon extracts product stoste and compares.The tannin ingredient in product is extracted with the above-mentioned green persimmon of liquid-phase chromatographic analysis and is compared.According to The appearance time and peak area size of different samples are analyzed, and find the formaldehyde sample of above three various concentration at 2.45 minutes The peak area that product go out is respectively 319.17,822.53,1175.01 and the peak area of stoste is 1701.95, it can be deduced that with first The increase of aldehyde concentration, the area at this peak have a significant reduction, and explanation is certain in the soluble tannin of green persimmon extraction product Kind of ingredient and formaldehyde react and have been changed, and the identification of this substance need to further determine that (Fig. 7, figure from now on 8, Fig. 9, Figure 10).

2. being carried out by the dried powder that infra-red sepectrometry extracts product gelinite to various concentration formaldehyde and green persimmon infrared Spectral scan accurately weighs the green persimmon extract xeraphium of 4 2.5g, is then sequentially placed into different beakers, sequentially adds 35mL distilled water, then first three formalin (concentration of formaldehyde 10mg/mL) for sequentially adding 12.5,2.5,0.5mL, then Ultrasound is then reacted in 30 DEG C of insulating boxs 20 minutes for 10 minutes is lyophilized these four solution with freeze dryer, and variety classes are lyophilized Powder carries out IR spectrum scanning, analyzes the infrared spectrogram of sample.The result shows that as formaldehyde additive amount increases, green persimmon in spectrogram It extracts the phenolic hydroxyl group of tannin and the quantity of aldehyde radical in product also to substantially reduce, illustrates that formaldehyde is most of and all extracted in product with green persimmon Persimmon tannin chemical reaction (Figure 11, Figure 12, Figure 13, Figure 14) has occurred.

The present invention has the following advantages that and characteristic: main production country of 1. China as persimmon, abundance, but is a lack of deep add Work can be promoted the development of persimmon product deep processing industry, be met the theory of Green Development using green persimmon as products material.2. blueness Persimmon extract product preparation when do not need be dried in vacuo or be freeze-dried and etc., saved manpower and material resources wealth to a certain extent Power.3. a green persimmon extracts product and is extracted from plants, it is added without any poisonous and harmful substance, all to human body, to environment It will not cause damages.4. a green persimmon extracts product and tests by the formaldehyde absorbing to three-ply board, show that formaldehyde absorbing rate is up to 63.8%, the formaldehyde absorbing of log board is tested, show that the highest adsorption rate of doubling dilution product is 54.07%, to realize more Good formaldehyde absorbing effect recommends for physical absorption (such as active carbon) and chemisorption (coated product of the present invention) to be used in combination.

[Detailed description of the invention].

Fig. 1 reacts pH and reaction time interactive response surface analysis figure.

Fig. 2 reaction temperature and reaction time interactive response surface analysis figure.

Fig. 3 blueness persimmon extracts product and analyzes formaldehyde absorbing rate on three-ply board.

Fig. 4 blueness persimmon extracts product to the formaldehyde absorbing content analysis of log board.

Fig. 5 blueness persimmon extracts product to the formaldehyde absorbing rate tables of data of log board.

Fig. 6 blueness persimmon extracts product and analyzes formaldehyde absorbing rate on wallpaper.

The total ion chromatogram of Fig. 7 blueness persimmon extraction product.

The green persimmon that Fig. 8 adds 10ug/mL formalin extracts the total ion chromatogram of product.

The green persimmon that Fig. 9 adds 100ug/mL formalin extracts the total ion chromatogram of product.

The green persimmon that Figure 10 adds 10mg/mL formalin extracts the total ion chromatogram of product.

Figure 11 blueness persimmon extracts product IR spectrum scanning figure.

Figure 12 adds the green persimmon of 0.5mL formalin (10mg/mL) to extract product IR spectrum scanning figure.

Figure 13 adds the green persimmon of 2.5mL formalin (10mg/mL) to extract product IR spectrum scanning figure.

Figure 14 adds the green persimmon of 12.5mL formalin (10mg/mL) to extract product IR spectrum scanning figure.

[specific embodiment].

Below by a specific implementation method and Application Example, the present invention is further illustrated.

A kind of green persimmon extraction product for controlling Form aldehyde release, preparation method include the following steps: to choose Taihang Mountain 100 jin of the mill blueness persimmon in area, cleaning, stalk；Green persimmon fruit after cleaning is broken, juicing, obtains 70 jin of broken green persimmon fruit juice；Will) Products therefrom spontaneous fermentation 2 months；By gained fermentation material filtering and impurity removing；The product of acquisition is separated through macroporous absorbent resin pure Change；Concentration, obtaining 20 jin of mass concentrations as 15% can be effectively controlled Form aldehyde release, and the green persimmon for family's coatings extracts product.

Application Example 1

The green persimmon of the absorption formaldehyde prepared is taken to extract product, spread product studies it to formaldehyde in three-ply board on three-ply board Adsorption effect: drier and crystallising dish are washed with water and is dried；Crystallising dish, In are placed in the drier bottom that diameter is 240mm 300mL distilled water is added in crystallising dish, water temperature is 20 C, crystallising dish is then put into drier bottom center, wire branch Support net is placed on above crystallising dish；The sample for having smeared product stoste is inserted into sample mount, then the branch that test specimen is housed Frame is put into the center of drier inner support net, makes its surface with crystallising dish；It is placed at 20 C for 24 hours, distilled water absorbs The formaldehyde released from test specimen；The formalin being sufficiently mixed in crystallising dish is held with single mark that formalin cleans a 100mL Measuring bottle is settled to 100mL, and formalin measures its absorbance.According to the standard curve made, production is calculated The formaldehyde absorbing rate to three-ply board of product stoste is 45.92%.

Application Example 2

It is different according to the operating method of application implementation 1, green persimmon is extracted into product progress doubling dilution and four times are dilute It releases, according to the standard curve made, two times of product dilutions being calculated are 33.36%, four to the formaldehyde dilution rate of three-ply board Times product dilution is 27.18% to the formaldehyde absorbing rate of three-ply board.

Application Example 3

It is different according to the operating method of Application Example 1, green persimmon will have been smeared and extracted the three-ply board of product in drying 48h, 72h, 96h is placed in device to be calculated by the standard curve made: after placing 48h, green persimmon extract product for The formaldehyde absorbing rate of three-ply board is 55.87%；After placing 72h, green persimmon extracts product and is for the formaldehyde absorbing rate of three-ply board 63.79%；After placing 96h, it is 62.56% for the formaldehyde absorbing rate of three-ply board that green persimmon, which extracts product,.

Application Example 4

It is applied to commercially available common wallpaper surface after green persimmon extract is carried out twice of dilution, the solution to wallpaper surface is dry Afterwards, wallpaper is constructed on house sidings surface.The persimmon tannin of wallpaper surface can effectively adsorb the pernicious gas in room air, packet Include formaldehyde.