阅读说明：本技术 诱生负氧离子的pu面料及其功能粉末和助剂的制作方法 (negative oxygen ion-induced PU fabric and manufacturing method of functional powder and auxiliary agent thereof ) 是由 李潇 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种诱生负氧离子的PU面料及其功能粉末和助剂的制作方法,其中负氧离子功能粉末的制作方法包括以下步骤：将离子吸附型稀土矿石、富镁纤维状硅酸盐和含水硅酸镁烘焙干燥；利用酸性萃取剂对烘焙干燥后的富镁纤维状硅酸盐和离子吸附型稀土矿石进行萃取,萃取后进行高温烘烤,去除放射性元素；将非晶形的二氧化硅加温,降低其中的可溶性硅酸含量；将含水硅酸镁、富镁纤维状硅酸盐、离子吸附型稀土矿石和二氧化硅,粉碎并混合均匀,得到负氧离子功能粉末。本发明,负氧离子功能助剂的原料成本低,生产出的负氧离子的PU面料,可以源源不断的向空间电离诱生负氧离子,诱生量为2000-5000个/立方厘米,可改善人们的生活空间,净化空气和环境。(The invention discloses a PU fabric capable of inducing negative oxygen ions and a manufacturing method of functional powder and an auxiliary agent thereof, wherein the manufacturing method of the negative oxygen ion functional powder comprises the following steps: baking and drying the ion adsorption type rare earth ore, the magnesium-rich fibrous silicate and the hydrous magnesium silicate; extracting the baked and dried magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore by using an acidic extractant, and then baking at a high temperature to remove radioactive elements; heating amorphous silicon dioxide to reduce the content of soluble silicic acid in the amorphous silicon dioxide; the hydrous magnesium silicate, the magnesium-rich fibrous silicate, the ion adsorption type rare earth ore and the silicon dioxide are crushed and uniformly mixed to obtain the negative oxygen ion functional powder. The raw material cost of the negative oxygen ion functional assistant is low, and the produced negative oxygen ion PU fabric can ionize and induce negative oxygen ions into space continuously, the induction amount is 2000-5000 per cubic centimeter, and the PU fabric can improve living space of people and purify air and environment.)

1. the preparation method of the negative oxygen ion functional powder is characterized by comprising the following steps of:

Baking and drying the ion adsorption type rare earth ore, the magnesium-rich fibrous silicate and the hydrous magnesium silicate;

Extracting the baked and dried magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore by using an acidic extractant, and then baking at a high temperature to remove radioactive elements;

heating amorphous silicon dioxide to reduce the content of soluble silicic acid in the amorphous silicon dioxide;

and crushing and uniformly mixing the hydrous magnesium silicate after baking and drying, the magnesium-rich fibrous silicate after removing radioactive elements, the ion adsorption type rare earth ore and silicon dioxide to obtain the negative oxygen ion functional powder.

2. the method according to claim 1, wherein the ratio of the hydrous magnesium silicate to the magnesium-rich fibrous silicate to the ion-adsorption type rare earth ore to the silicon dioxide is 3: (3-6):(4-8):(1-2.5).

3. The method according to claim 1, wherein the ratio of the hydrous magnesium silicate to the magnesium-rich fibrous silicate to the ion-adsorption type rare earth ore to the silicon dioxide is 3: 6: 5: 1.

4. The method as claimed in claim 1, wherein the negative oxygen ion functional powder is mixed with neutral water-soluble auxiliary agent and resin, and stirred to fully mix the three to obtain white jelly, and the negative oxygen ion functional auxiliary agent is obtained, wherein the weight ratio of the three is (3-5): (20-30): (80-92).

5. The method according to claim 1, wherein the content of soluble silicic acid in the crystalline silica is 30% or less.

6. The method according to claim 1, wherein when the baked and dried magnesium-rich fibrous silicate and ion-adsorbing rare earth ore are extracted with an acidic extractant, the mass of the acidic extractant used is 3 to 5 times the sum of the masses of the magnesium-rich fibrous silicate and the ion-adsorbing rare earth ore, and the concentration of the acidic extractant is 5 to 15 wt%.

7. the method according to claim 1, wherein the removal rate of the radioactive elements in the magnesium-rich fibrous silicate and the ion-adsorbing rare earth ore after the extraction is 80% or more.

8. A manufacturing method of a PU fabric capable of inducing negative oxygen ions is characterized by comprising the following steps:

selecting a wet production line to obtain a PU material;

fully soaking the PU material in clear water, and performing primary steam drying after soaking;

soaking the PU material dried by the first steam in a negative oxygen ion setting solution for the second time, and drying by the second steam after the soaking is finished to obtain the PU fabric, wherein the negative oxygen ion setting solution comprises the following components in parts by weight:

Neutral sizing slurry: 100, respectively;

The negative oxygen ion functional additive prepared by the method of claim 4: 3-5;

Water-soluble resin stock solution: 10-15 parts of;

dispersing agent: 2-4;

neutral adhesive agent: 3-7;

neutral curing agent: 4-8.

9. the method of claim 8, wherein the PU material has a moisture content of 20% after the first steam drying.

10. The method of claim 8, wherein the second steam drying is performed at a drying temperature of 220 ℃ for 1 minute, and the embossing of the surface of the embossing wheel is performed on the surface of the PU material at a temperature of more than 200 ℃.

Technical Field

The invention relates to the technical field of functional fabrics, in particular to a PU fabric capable of inducing negative oxygen ions and a manufacturing method of functional powder and an auxiliary agent thereof.

background

As the world population grows, the demand for leather has multiplied and a limited number of natural leathers have long been unable to meet the demand. Therefore, the PU fabric replaces abundant natural leather with insufficient resources, and is widely applied to the fields of decoration of bags, clothes, shoes, vehicles, furniture and the like.

However, the main raw material of the PU fabric is polyurethane, which is a material synthesized by a chemical technology, and particularly, toxic isocyanate is used in the synthesis process, so that the PU fabric can emit harmful substances during use, and the health of a human body is affected.

Meanwhile, people pay more and more attention to health. Research shows that the small-particle-size negative oxygen ions known as 'air vitamins' have medical health care effect on human bodies, and mainly can affect the physiological activities of the human bodies through the nervous systems and blood circulation of the human bodies. Wherein: the negative oxygen ions can strengthen the inhibition process of the cerebral cortex of a human and regulate the function of the cerebral cortex, thereby playing the roles of calming, hypnotizing and reducing blood pressure; after the negative oxygen ions enter the respiratory tract of the human body, the smooth muscle of the bronchus is relaxed, and the spasm of the smooth muscle is relieved; the negative oxygen ions enter the blood of human body, so that the sedimentation rate of erythrocyte is slowed, the coagulation time is prolonged, the content of erythrocyte and blood calcium is increased, the content of leucocyte, blood calcium and blood sugar is reduced, and the content of lactic acid in fatigue muscle is reduced. The negative oxygen ions can enhance the oxidation process of human tissues such as kidney, liver, brain, etc., wherein the brain tissue is most sensitive to the negative oxygen ions.

The negative oxygen ions can also strengthen the oxidation process of the brain tissue, so that the brain tissue can obtain more oxygen. Is an effect on the cardiovascular system. According to the observation of the scholars, the negative oxygen ions have the obvious function of expanding blood vessels, can relieve arterial vasospasm and achieve the aim of reducing blood pressure, are also beneficial to improving the cardiac function and myocardial nutrition, and are beneficial to the recovery of patients with hypertension and cardiovascular and cerebrovascular diseases. Is the effect on the blood system. Research proves that the negative oxygen ions have the functions of slowing blood and prolonging blood coagulation time, can increase the oxygen content in the blood and is beneficial to blood oxygen transportation, absorption and utilization.

In view of the fact that negative oxygen ions are beneficial to physical and psychological health of human bodies, research on negative oxygen ion functional fabrics is also receiving more and more attention. For example, chinese invention patent CN 105330893 a discloses a negative oxygen ion powder and a method for preparing slow rebound memory cotton and PU synthetic leather using the same, wherein the method for preparing PU synthetic leather using the negative oxygen ion powder comprises the following steps: the method comprises the steps of taking the napped cloth as a substrate, adding negative oxygen ion powder accounting for 3% -6% of the coating by mass into the coating, uniformly mixing, dipping and coating the substrate with the coating, solidifying and grinding to obtain the PU synthetic leather. The scheme states that the negative oxygen ion powder has high content of negative oxygen ions released by the powder through reasonable proportion of elements such as aluminum, silicon, boron, iron, sodium, potassium and the like, and the radiation intensity of far infrared rays meets the national standard, so that the powder has an excellent health care function. However, this solution has the following drawbacks:

(1) the negative oxygen ion powder is prepared from various chemical raw materials, and has the disadvantages of complex material selection, high radioactivity, high manufacturing cost and complex processing technology;

(2) And corresponding experimental data do not prove the content and the particle size of negative oxygen ions released by the powder, because only the negative oxygen ions with small particle size can easily permeate the blood brain barrier of a human body, and the biological effect of the powder is exerted.

Therefore, the proposal has the defects of high cost and insufficient negative oxygen ion induction amount with small particle size.

In view of the above, there is a need to improve the existing negative oxygen ion PU fabric and the manufacturing method of the functional powder and the auxiliary agent thereof, so as to reduce the manufacturing cost of the negative oxygen ion functional auxiliary agent, increase the induction amount of the negative oxygen ions with small particle size, improve the living space of people, and purify the air and the environment.

disclosure of Invention

the invention aims to solve the technical problems that the conventional negative oxygen ion PU fabric and the function and auxiliary agent thereof have high manufacturing cost and the negative oxygen ion induction quantity of small particle size is insufficient.

in order to solve the technical problems, the technical scheme adopted by the invention is to provide a method for preparing negative oxygen ion functional powder, which comprises the following steps:

Baking and drying the ion adsorption type rare earth ore, the magnesium-rich fibrous silicate and the hydrous magnesium silicate;

extracting the baked and dried magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore by using an acidic extractant, and then baking at a high temperature to remove radioactive elements;

heating amorphous silicon dioxide to reduce the content of soluble silicic acid in the amorphous silicon dioxide;

And crushing and uniformly mixing the hydrous magnesium silicate after baking and drying, the magnesium-rich fibrous silicate after removing radioactive elements, the ion adsorption type rare earth ore and silicon dioxide to obtain the negative oxygen ion functional powder.

In the method, the weight part ratio of the hydrous magnesium silicate, the magnesium-rich fibrous silicate, the ion adsorption type rare earth ore and the silicon dioxide is 3: (3-6):(4-8):(1-2.5).

In the method, the weight part ratio of the hydrous magnesium silicate, the magnesium-rich fibrous silicate, the ion adsorption type rare earth ore and the silicon dioxide is 3: 6: 5: 1.

in the method, the negative oxygen ion functional powder, a neutral water-soluble auxiliary agent and resin are mixed and stirred to be fully mixed into white jelly, and the negative oxygen ion functional auxiliary agent is obtained, wherein the weight part ratio of the negative oxygen ion functional powder to the neutral water-soluble auxiliary agent to the resin is (3-5): (20-30): (80-92).

in the above method, the content of soluble silicic acid in the crystalline silica is 30% or less.

In the method, when the baked and dried magnesium-rich fibrous silicate and ion-adsorption type rare earth ore are extracted by using an acidic extractant, the mass of the acidic extractant is 3-5 times of the sum of the mass of the magnesium-rich fibrous silicate and the mass of the ion-adsorption type rare earth ore, and the concentration of the acidic extractant is 5-15 wt%.

in the above method, the removal rate of the radioactive elements in the magnesium-rich fibrous silicate and the ion-adsorbing rare earth ore after extraction is 80% or more.

the invention also provides a manufacturing method of the PU fabric for inducing negative oxygen ions, which comprises the following steps:

Selecting a wet production line to obtain a PU material;

Fully soaking the PU material in clear water, and performing primary steam drying after soaking;

Soaking the PU material dried by the first steam in a negative oxygen ion setting solution for the second time, and drying by the second steam after the soaking is finished to obtain the PU fabric, wherein the negative oxygen ion setting solution comprises the following components in parts by weight:

Neutral sizing slurry: 100, respectively;

the negative oxygen ion functional assistant prepared by the method comprises the following steps: 3-5;

water-soluble resin stock solution: 10-15 parts of;

dispersing agent: 2-4;

neutral adhesive agent: 3-7;

neutral curing agent: 4-8.

In the above method, after the first steam drying, the PU material has 20% humidity.

In the method, when the second time of steam drying is carried out, the drying temperature is 220 ℃, the drying time is 1 minute, and the grains on the surface of the embossing wheel are printed on the surface of the PU material under the condition that the surface temperature of the hot pressing wheel exceeds 200 ℃.

Compared with the prior art, the scheme provided by the invention has the advantages that the raw material cost of the negative oxygen ion functional auxiliary agent is low, the processing technology is simple, the produced negative oxygen ion PU fabric can ionize and induce negative oxygen ions to the space continuously, the induction amount is 2000-5000 per cubic centimeter, the living space of people can be improved, and the air and the environment can be purified.

Drawings

FIG. 1 is a flow chart of a method for preparing the negative oxygen ion functional additive of the present invention;

FIG. 2 is a flow chart of a manufacturing method of the negative oxygen ion-induced PU fabric of the invention.

Detailed Description

the invention provides a PU fabric capable of inducing negative oxygen ions and a manufacturing method of functional powder and an auxiliary agent thereof. The invention is described in detail below with reference to the drawings and the detailed description.

In order to make the technical solution and implementation of the present invention more clearly explained and illustrated, several preferred embodiments for implementing the technical solution of the present invention are described below. It should be understood that the specific embodiments described below 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 negative oxygen ion functional assistant is a prerequisite condition for producing the negative oxygen ion PU fabric, and the quality of the negative oxygen ion functional assistant determines whether the PU fabric can meet the national detection test of the negative oxygen ion PU fabric, particularly the monitoring requirement on radiation measurement.

The preparation method of the negative oxygen ion functional powder and the auxiliary agent, as shown in figure 1, comprises the following steps:

step 110: the ion adsorption type rare earth ore, magnesium-rich fibrous silicate (such as sepiolite) and hydrous magnesium silicate (such as talc) are subjected to baking and drying treatment.

the specific method comprises the following steps: the three raw materials are put into a drying furnace or a drying machine for baking and drying treatment, the baking temperature is 60 ℃, the baking time is not less than 24 hours, and the three raw materials are completely dried.

step 120: and (3) extracting the baked and dried magnesium-rich fibrous silicate and the ion adsorption type rare earth ore by using an acidic extractant, and then baking at a high temperature to remove radioactive elements such as radium, thorium, potassium and the like.

the specific method comprises the following steps: extracting the magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore obtained in the step 110 by using a medium-strong acid extracting agent (dissociation constant (Ka is approximately 10)), wherein the mass of the used acid extracting agent is 3-5 times of the sum of the mass of the magnesium-rich fibrous silicate and the mass of the ion-adsorption type rare earth ore, the concentration of acid is 5-15 wt% (Weight percent), the extraction time is not less than 5 hours, so that the magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore are dispersed into particles in the solution, after other impurities are precipitated, the pure magnesium-rich fibrous silicate and the ion-adsorption type rare earth ore are taken out, and are roasted at high temperature of not less than 180 ℃ for not less than 24 hours to form grey white.

by the extraction treatment, the removal rate of radium, thorium, potassium and other radioactive elements can reach more than 80%.

step 130: the amorphous silicon dioxide is heated to reduce the content of soluble silicic acid in the silicon dioxide.

The specific method comprises the following steps: the amorphous silicon dioxide is heated to 300 ℃ or 350 ℃, for example, the silicon dioxide has the advantages of neutral pH value, no toxicity, good suspension property, strong adsorption property and the like, and simultaneously has good comprehensiveness to the radioactive rays of alpha rays, and the half-life period of the silicon dioxide is increased by 45%.

step 140: and crushing and uniformly mixing the hydrous magnesium silicate after baking and drying, the magnesium-rich fibrous silicate after removing radioactive elements, the ion adsorption type rare earth ore and silicon dioxide to obtain the negative oxygen ion functional powder. The granularity of the negative oxygen ion functional powder is not less than 1500 meshes.

wherein, in the preferred embodiment, the weight ratio of the hydrous magnesium silicate, the magnesium-rich fibrous silicate, the ion adsorption type rare earth ore and the silicon dioxide is 3 (3-6): (4-8): 1-2.5).

the following are typical embodiments: