Anti-aging flame-retardant artificial board with impregnated film paper veneer and preparation method thereof

文档序号：1929993 发布日期：2021-12-07 浏览：38次中文

阅读说明：本技术 一种浸渍膜纸饰面抗老化耐燃人造板及其制备方法 (Anti-aging flame-retardant artificial board with impregnated film paper veneer and preparation method thereof ) 是由张雯洁于 2021-08-09 设计创作，主要内容包括：本发明涉及装饰材料技术领域,具体涉及一种浸渍膜纸饰面抗老化耐燃人造板及其制备方法；包括以下步骤：S1、合成三聚氰胺改性脲醛树脂胶液,S2、合成纸张浸渍胶液备用,S3、将纸张在浸渍胶液浸泡加工成浸渍膜纸,S4、在基材板上依次铺设浸渍膜纸和装饰板,制备浸渍膜纸饰面抗老化耐燃人造板；本发明将三聚氰胺引入脲醛树脂分子中,形成三维网状结构,封闭了许多吸水基团,同时,三聚氰胺分子链嵌入脲醛树脂大分子链中,进而提高了制备的浸渍膜纸饰面人造板的耐老化的效果,也能够降解甲醛,对环境进行保护,阻燃剂在受热分解时释放出结合水,吸收大量的潜热,来降低合成材料在火焰中的表面温度,提升了制备的浸渍膜纸饰面人造板的阻燃效果。(The invention relates to the technical field of decorative materials, in particular to an anti-aging flame-retardant artificial board with an impregnated film paper veneer and a preparation method thereof; the method comprises the following steps: s1, synthesizing melamine modified urea-formaldehyde resin glue solution, S2, synthesizing paper dipping glue solution for later use, S3, soaking paper in the dipping glue solution to process the paper into dipping membrane paper, and S4, sequentially paving the dipping membrane paper and a decorative plate on a substrate plate to prepare the dipping membrane paper veneer anti-aging flame-retardant artificial board; according to the invention, melamine is introduced into urea-formaldehyde resin molecules to form a three-dimensional network structure, a plurality of water-absorbing groups are sealed, and melamine molecular chains are embedded into urea-formaldehyde resin macromolecular chains, so that the anti-aging effect of the prepared impregnated film paper facing artificial board is improved, formaldehyde can be degraded, the environment is protected, the flame retardant releases combined water when being heated and decomposed, a large amount of latent heat is absorbed, the surface temperature of the synthetic material in flame is reduced, and the flame retardant effect of the prepared impregnated film paper facing artificial board is improved.)

1. The preparation method of the anti-aging flame-retardant artificial board with the impregnated film paper veneer is characterized by comprising the following steps of:

s1, synthesizing melamine modified urea-formaldehyde resin glue solution;

s2, dipping the synthetic paper into glue solution for standby;

s3, soaking paper in the dipping glue solution to process the paper into dipping membrane paper;

s4, laying impregnated membrane paper and a decorative plate on the substrate plate in sequence, and performing hot press molding by adopting a hot press to obtain the impregnated membrane paper-faced anti-aging flame-retardant artificial board.

2. The method for preparing the impregnated film paper veneer anti-aging flame-retardant artificial board as claimed in claim 1, wherein in the step S1, the method for synthesizing the melamine modified urea formaldehyde resin glue solution comprises the following steps:

adding urea-formaldehyde resin and formaldehyde into a reaction kettle, and starting stirring; adding melamine into the reaction kettle, and adjusting the pH value to 7.5; adding the first urea, and keeping the temperature for 1 h; adding urea for the second time, keeping the temperature for half an hour, and adjusting the pH value to 5.5; adding urea for three times, cooling, keeping the temperature and stirring for half an hour; adding water into the reaction kettle, adjusting the pH value to 7-8, cooling and discharging to obtain melamine modified urea-formaldehyde resin glue solution;

wherein the stirring speed is 200-300r/min, the temperature is kept for 1h under the condition of 85-90 ℃ when the first urea is added, the temperature is reduced to 70 ℃ when the third urea is added, and the temperature is reduced to 40 ℃ after the water is added.

3. The method for preparing the impregnated paper faced anti-aging flame-retardant artificial board according to claim 1, wherein in the step S2, the method for synthesizing the paper impregnated glue solution comprises:

adding the melamine modified urea-formaldehyde resin glue solution into a stirrer; adding a flame retardant, a release agent, a curing agent and a penetrating agent into a stirrer, and uniformly stirring and mixing to prepare a paper impregnation glue solution;

wherein, the rotating speed of the stirrer is 120-230 r/min.

4. The method for preparing the impregnated film paper veneer anti-aging flame-retardant artificial board according to claim 3, wherein the method for preparing the flame retardant comprises the following steps:

respectively taking magnesium hydroxide powder and melamine phosphate powder, and grinding in a grinding machine; and (3) putting the milled magnesium hydroxide and the melamine phosphate into a mixer for mixing to obtain the flame retardant.

5. The method for preparing the anti-aging flame-retardant artificial board with the impregnated paper film facing as claimed in claim 3, wherein the release agent is one of epoxy resin or phenolic resin demoulding.

6. The method for preparing the impregnated paper faced anti-aging flame-retardant artificial board as claimed in claim 3, wherein the curing agent is ammonium chloride.

7. The method for preparing the anti-aging flame-retardant artificial board with the impregnated film paper veneer as claimed in claim 3, wherein the penetrating agent is dioctyl sodium sulfosuccinate.

8. The method for preparing the anti-aging flame-retardant artificial board with the impregnated film paper veneer according to claim 1, wherein in the step S3, the method for processing the paper into the impregnated film paper by soaking the paper in the impregnating solution comprises the following steps:

soaking paper in the dipping glue solution; taking out the soaked paper, drying the paper in a drying box, and then cooling the paper to room temperature; shearing the dried paper according to the requirement to prepare impregnated film paper;

wherein, the soaking curing time is 5-6min, the gum dipping amount is 120-130%, the pre-curing degree is 50-60%, and the drying temperature of the drying box is 135-145 ℃.

9. The method as claimed in claim 1, wherein in step S4, the hot pressing temperature of the hot press is 140-150 ℃ and the hot pressing time is 6-8 min.

10. An impregnated film paper-faced anti-aging flame-retardant artificial board, which is characterized by being prepared by using the preparation method of the impregnated film paper-faced anti-aging flame-retardant artificial board according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of decorative materials, in particular to an anti-aging flame-retardant artificial board with an impregnated film paper veneer and a preparation method thereof.

Background

The artificial board is a board or a molded product which is made by taking wood or other non-wood plants as raw materials, separating the raw materials into various unit materials through certain mechanical processing and then gluing the unit materials with or without adhesive and other additives.

Patent document CN202011281357.3 discloses a crack-resistant impregnated bond paper veneer and a preparation method thereof, wherein the veneer prepared by the patent document has a certain anti-aging performance, but the anti-aging effect is poor, and meanwhile, the veneer is easy to pollute the environment in the using process and lacks a good flame-retardant effect, so that the performance and the quality of the prepared veneer are influenced.

In summary, the research and development of the anti-aging and flame-retardant artificial board with the impregnated film paper veneer and the preparation method thereof are still key problems to be solved urgently in the technical field of decorative materials.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an anti-aging flame-retardant artificial board with an impregnated film paper veneer and a preparation method thereof, the invention synthesizes melamine modified urea-formaldehyde resin glue solution, introduces melamine into urea-formaldehyde resin molecules to form a three-dimensional reticular structure, seals a plurality of water-absorbing groups, and simultaneously embeds melamine molecular chains into urea-formaldehyde resin macromolecular chains, thereby improving the anti-aging effect of the prepared impregnated film paper veneer artificial board, degrading formaldehyde and protecting the environment; the quality of the prepared impregnated film paper veneer artificial board is effectively improved.

In order to achieve the purpose, the invention provides the following technical scheme:

a preparation method of an anti-aging flame-retardant artificial board with an impregnated film paper veneer comprises the following steps:

s1, synthesizing melamine modified urea-formaldehyde resin glue solution;

s2, dipping the synthetic paper into glue solution for standby;

s3, soaking paper in the dipping glue solution to process the paper into dipping membrane paper;

By adopting the technical scheme: the melamine modified urea-formaldehyde resin glue solution is synthesized, so that the problem of poor water resistance of urea-formaldehyde resin is solved, the melamine is introduced into urea-formaldehyde resin molecules to form a three-dimensional network structure, a plurality of water-absorbing groups are sealed, meanwhile, the melamine is alkaline and can neutralize acid in the glue layer, the hydrolysis and hydrolysis speed of the urea-formaldehyde resin is prevented and reduced to a certain extent, the anti-aging effect of the prepared impregnated membrane paper facing artificial board is further improved, meanwhile, the melamine modified urea-formaldehyde resin can degrade formaldehyde and protect the environment, and the flame retardant is added into the synthetic paper impregnated glue solution, so that the flame retardant effect of the prepared impregnated membrane paper facing artificial board is improved.

The invention is further provided with: in step S1, the method for synthesizing the melamine modified urea resin glue solution includes:

By adopting the technical scheme: according to the invention, the urea-formaldehyde resin and the melamine are added, and the melamine is introduced into urea-formaldehyde resin molecules to form a three-dimensional network structure, so that the aging resistance and the environmental protection effect of the impregnated film paper facing artificial board can be improved.

The invention is further provided with: in step S2, the method for synthesizing the paper impregnation glue solution includes:

wherein, the rotating speed of the stirrer is 120-230 r/min.

By adopting the technical scheme: according to the invention, the prepared impregnated film paper veneer artificial board has good flame retardance by adding the flame retardant, the release agent, the curing agent and the penetrating agent, and the quality of the impregnated film paper veneer artificial board is improved.

The invention is further provided with: the preparation method of the flame retardant comprises the following steps:

By adopting the technical scheme: according to the invention, the flame retardant is synthesized by magnesium hydroxide and melamine phosphate, and when the flame retardant is heated and decomposed, the flame retardant releases bound water and absorbs a large amount of latent heat to reduce the surface temperature of the synthetic material in flame, so that the impregnated film paper facing artificial board can have a good flame retardant effect.

The invention is further provided with: the release agent is one of epoxy resin or phenolic resin demoulding.

By adopting the technical scheme: according to the invention, epoxy resin or phenolic resin stripping is adopted as a release agent, so that the impregnated film paper can form uniform release film paper.

The invention is further provided with: the curing agent is ammonium chloride.

By adopting the technical scheme: the ammonium chloride is taken as a curing agent, and the stability of the impregnation glue solution can be improved.

The invention is further provided with: the penetrating agent is dioctyl sodium sulfosuccinate.

By adopting the technical scheme: the invention takes dioctyl sodium sulfosuccinate as a penetrant, so that the glue can be more quickly, uniformly and thoroughly impregnated in the impregnated film paper.

The invention is further provided with: in step S3, the method for processing the paper into the impregnated film paper by soaking the paper in the impregnating solution comprises:

wherein, the soaking curing time is 5-6min, the gum dipping amount is 120-130%, the pre-curing degree is 50-60%, and the drying temperature of the drying box is 135-145 ℃.

By adopting the technical scheme: the impregnated film paper prepared by soaking, drying and shearing is applied to the artificial board, so that the artificial board has good flame retardant, anti-aging and environmental protection effects.

The invention is further provided with: in the step S4, the hot pressing temperature of the hot press is 140-150 ℃, and the hot pressing time is 6-8 min.

By adopting the technical scheme: the hot pressing temperature of the hot press is 140-150 ℃, the hot pressing time is 6-8min, the proper hot pressing temperature and the proper hot pressing time are provided for preparing the impregnated film paper veneer artificial board, and the hot pressing effect is ensured.

The invention also provides the anti-aging flame-retardant artificial board with the impregnated film paper veneer prepared by the method.

By adopting the technical scheme: the impregnated film paper veneer artificial board prepared by the invention has good flame retardant, anti-aging and environmental protection effects, and the quality of the impregnated film paper veneer artificial board is effectively improved.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

the invention changes the problem of poor water resistance of the urea-formaldehyde resin by synthesizing the melamine modified urea-formaldehyde resin glue solution, introduces melamine into urea-formaldehyde resin molecules to form a three-dimensional network structure, seals a plurality of water-absorbing groups, simultaneously, the melamine is alkaline, can neutralize acid in the glue layer, prevents and reduces the hydrolysis and hydrolysis speed of the urea-formaldehyde resin to a certain extent, and embeds melamine molecular chains into urea-formaldehyde resin macromolecular chains, thereby improving the aging-resistant effect of the prepared impregnated film paper veneer artificial board, simultaneously, the melamine modified urea-formaldehyde resin can also degrade formaldehyde, protects the environment, adds a flame retardant into the synthetic paper impregnated glue solution, synthesizes a combustion improver through magnesium hydroxide and melamine phosphate, releases combined water when being heated and decomposed, absorbs a large amount of latent heat, and reduces the surface temperature of the synthetic material in flame, the flame retardant effect of the prepared impregnated film paper veneer artificial board is improved.

Drawings

FIG. 1 is a flow chart of a method for preparing an anti-aging flame-retardant artificial board with an impregnated film paper veneer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example 1

Referring to fig. 1, a method for preparing an anti-aging flame-retardant artificial board with an impregnated paper veneer comprises the following steps:

step one, synthesizing melamine modified urea-formaldehyde resin glue solution.

The method for synthesizing the melamine modified urea resin glue solution comprises the following steps:

adding urea-formaldehyde resin and formaldehyde into a reaction kettle, and starting stirring; adding melamine into the reaction kettle, and adjusting the pH value to 7.5; adding the first urea, and keeping the temperature for 1 h; adding urea for the second time, keeping the temperature for half an hour, and adjusting the pH value to 5.5; adding urea for three times, cooling, keeping the temperature and stirring for half an hour; and adding water into the reaction kettle, adjusting the pH value to 7-8, cooling and discharging to obtain the melamine modified urea-formaldehyde resin glue solution.

Wherein the stirring speed is 200-300r/min, the temperature is kept for 1h under the condition of 85-90 ℃ when the first urea is added, the temperature is reduced to 70 ℃ when the third urea is added, and the temperature is reduced to 40 ℃ after the water is added.

And step two, synthesizing paper dipping glue solution for later use.

The method for synthesizing the paper impregnation glue solution comprises the following steps:

adding the melamine modified urea-formaldehyde resin glue solution into a stirrer; and adding the flame retardant, the release agent, the curing agent and the penetrating agent into the stirrer, and uniformly stirring and mixing to obtain the paper impregnation glue solution.

Wherein, the rotating speed of the stirrer is 120-230 r/min.

The preparation method of the flame retardant comprises the following steps:

The release agent is epoxy resin.

The curing agent is ammonium chloride.

The penetrant is dioctyl sodium sulfosuccinate.

And step three, soaking the paper in the impregnation glue solution to process the paper into the impregnated membrane paper.

The method for processing the paper into the impregnated film paper by soaking the paper in the impregnating glue solution comprises the following steps:

wherein, the soaking curing time is 5-6min, the gum dipping amount is 120-130%, the pre-curing degree is 50-60%, and the drying temperature of the drying box is 135-145 ℃.

And fourthly, sequentially paving the impregnated membrane paper and the decorative plate on the base material plate, and performing hot press molding by adopting a hot press to obtain the impregnated membrane paper veneer anti-aging flame-retardant artificial board.

The hot-pressing temperature of the hot-pressing machine is 140-150 ℃, and the hot-pressing time is 6-8 min.

The invention also provides the anti-aging flame-retardant artificial board with the impregnated film paper veneer prepared by the method.

Example 2

The impregnated film paper veneer anti-aging flame-retardant artificial board and the preparation method thereof provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows:

in the first step, the stirring speed is 250r/min, and when the first urea is added, the temperature is kept for 1h at 87 ℃;

in the second step, the rotating speed of the stirrer is 170r/min, and the release agent is phenolic resin demoulding;

in the third step, the soaking curing time is 6min, the gum dipping amount is 125%, the pre-curing degree is 55%, and the drying temperature of the drying box is 140 ℃;

in the fourth step, the hot pressing temperature of the hot press is 147 ℃, and the hot pressing time is 7 min.

Example 3

in the first step, the stirring speed is 300r/min, and when the first urea is added, the temperature is kept for 1h at the temperature of 90 ℃;

in the second step, the rotating speed of the stirrer is 230r/min, and the release agent is phenolic resin demoulding;

in the third step, the soaking curing time is 6min, the gum dipping amount is 130%, the pre-curing degree is 60%, and the drying temperature of the drying box is 145 ℃;

in the fourth step, the hot pressing temperature of the hot press is 150 ℃, and the hot pressing time is 8 min.

Comparative example 1

The impregnated film paper facing anti-aging flame-retardant artificial board and the preparation method thereof provided by the embodiment are substantially the same as those of the embodiment 1, and the main differences are as follows: the urea-formaldehyde resin is not modified.

Comparative example 2

Performance testing

Taking the impregnated film paper veneer artificial board prepared in the examples 1-3 and the comparative examples 1-2, and detecting the relevant performance of the prepared impregnated film paper veneer artificial board, wherein the detection method comprises the following steps:

1. respectively detecting the formaldehyde degradation performance of each impregnated film paper-faced artificial board according to the detection standard GB/T17657-2013, and recording the obtained test results in table 1;

table 1 degradation formaldehyde effect detecting table for impregnated film paper facing artificial board

2. Respectively detecting the ageing resistance (shear strength) of each impregnated film paper facing artificial board according to the detection standard GB/T15102-2006, and recording the obtained test result in a table 2;

table 2 table for testing anti-aging effect of impregnated paper faced wood-based panel

Test items	Shear strength (Mpa)
		Example 1	6.0
Example 2	5.8
		Example 3	6.2
Comparative example 1	2.1
		Comparative example 2	5.4

3. Respectively detecting the flame retardant performance (flame retardant growth rate index) of each impregnated film paper-faced artificial board according to the detection standard GB/T8624-2012, and recording the obtained test result in a table 3;

table 3 table for testing fire-retardant effect of impregnated paper faced artificial board

By analyzing the relevant data in the table, the impregnated film paper veneer artificial board prepared by the invention not only has the anti-aging effect, but also has good flame retardant and environmental protection properties. Therefore, the preparation method of the impregnated film paper veneer anti-aging flame-retardant artificial board has wider market prospect and is more suitable for popularization.

The invention changes the problem of poor water resistance of the urea-formaldehyde resin by synthesizing the melamine modified urea-formaldehyde resin glue solution, introduces melamine into urea-formaldehyde resin molecules to form a three-dimensional network structure, seals a plurality of water-absorbing groups, simultaneously, the melamine is alkaline, can neutralize acid in the glue layer, prevents and reduces the hydrolysis and hydrolysis speed of the urea-formaldehyde resin to a certain extent, and embeds melamine molecular chains into urea-formaldehyde resin macromolecular chains, thereby improving the aging-resistant effect of the prepared impregnated film paper veneer artificial board, simultaneously, the melamine modified urea-formaldehyde resin can also degrade formaldehyde, protects the environment, adds a flame retardant into the synthetic paper impregnated glue solution, synthesizes a combustion improver through magnesium hydroxide and melamine phosphate, releases combined water when being heated and decomposed, absorbs a large amount of latent heat, and reduces the surface temperature of the synthetic material in flame, the flame retardant effect of the prepared impregnated film paper veneer artificial board is improved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

9页详细技术资料下载

Anti-aging flame-retardant artificial board with impregnated film paper veneer and preparation method thereof

相关技术

网友询问留言