Monodisperse micron elastic microsphere powder as well as preparation method and application thereof

An elastic microsphere, micron-scale technology, applied in the field of monodisperse micron-scale elastic microsphere powder and its preparation, can solve the problems of low light transmittance of products, long preparation process time, reduced luminous flux, etc., and achieves difficult gelation. , good stability, increase elasticity and tactile effect

Inactive Publication Date: 2019-07-23
广州五行材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this polymerization takes a long time. It takes 1-10 days to prepare modified starch granules, and 24 hours for emulsion polymerization.
Moreover, a large amount of starch granules are attached to the surface of the obtained silicone elastic microspheres. Since these starch granules have been modified by hydrophobicity, they cannot be removed by water washing and other processes in the later stage. The residual starch granules will greatly reduce the luminous flux in the later application. , resulting in low light transmittance of the product, whitening and other phenomena

Method used

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  • Monodisperse micron elastic microsphere powder as well as preparation method and application thereof
  • Monodisperse micron elastic microsphere powder as well as preparation method and application thereof
  • Monodisperse micron elastic microsphere powder as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1. Add 19.7 g of isophorone diisocyanate, 0.1 g of p-hydroxyanisole and 0.2 g of bismuth neodecanoate into a reaction flask equipped with an electric stirrer, a peristaltic pump and a thermometer. Stirring was started and the temperature was raised to 50 °C. Slowly add 66.6g of polypropylene glycol (molecular weight: 2000) and 12.5g of polytetrahydrofuran glycol (molecular weight: 2000) mixed in advance dropwise. After the drop is complete, the reaction temperature is raised to 80° C. and kept for 4 hours. Finally, 0.7 g of hydroxyethyl acrylate and 0.5 g of hydroxyethyl methacrylate mixed in advance were added for capping to obtain polyurethane acrylate.

[0037] 2. Take 40g of the polyurethane acrylate synthesized above, add 30g of butyl acrylate and 30g of lauryl acrylate, mix, stir until completely dissolved, and obtain a mixed solution;

[0038] 3. Take 1g dioctyl sodium succinate, 1g ECOSURF TM A stabilizer solution was prepared by mixing EH-9 with 100 g of water....

Embodiment 2

[0043] 1. Add 39.2g of 4,4'-dicyclohexylmethane diisocyanate, 0.1g of p-hydroxyanisole and 0.2g of bismuth neodecanoate into a reaction flask equipped with an electric stirrer, a peristaltic pump and a thermometer. Stirring was started and the temperature was raised to 50 °C. Slowly add 9.6g of polytetrahydrofuran diol (molecular weight: 650) and 48g of polycarbonate diol (molecular weight: 1000) mixed in advance dropwise. After the drop is complete, the reaction temperature is raised to 80° C. and kept for 4 hours. Finally, 3.2 g of hydroxypropyl acrylate was added for capping to obtain polyurethane acrylate.

[0044] 2. Take 40g of the urethane acrylate synthesized above, add 10g of methyl methacrylate and 50g of decyl methacrylate to mix, and stir until completely dissolved to obtain a mixed solution;

[0045] 3. Take 2g sodium lauryl sulfate, 0.5g TERGITOL TM A stabilizer solution was prepared by mixing 15-S-20 with 100 g of water.

[0046] 4. Add the mixed solution of ...

Embodiment 3

[0050] 1. Add 27.7g of hexamethylene diisocyanate, 0.1g of p-hydroxyanisole and 0.2g of bismuth neodecanoate into a reaction flask equipped with an electric stirrer, a peristaltic pump and a thermometer. Stirring was started and the temperature was raised to 50 °C. Slowly add 45.3g of polyethylene adipate (molecular weight: 1000) and 22.8g polycarbonate diol (molecular weight: 1000) mixed in advance dropwise. After the dropping, the reaction temperature is raised to 80° C. and kept for 4 hours. Finally, 0.8 g of hydroxyethyl methacrylate and 3.5 g of hydroxybutyl acrylate were added for capping to obtain polyurethane acrylate.

[0051] 2. Take 40g of the polyurethane acrylate synthesized above, add 60g of n-propyl acrylate and mix, stir until completely dissolved to obtain a mixed solution;

[0052] 3. Mix 0.5 g of sodium lauryl sulfate with 100 g of water to prepare a stabilizer solution.

[0053] 4. Add the mixed solution of step 2, 0.5g of benzoyl peroxide and 1g of lauro...

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PUM

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Abstract

The invention belongs to the technical field of macromolecular polymerization and discloses monodisperse micron elastic microsphere powder as well as a preparation method and an application thereof. The microsphere powder is prepared as follows: mixing polyurethane acrylate and a vinyl monomer to obtain a prepolymer, preparing a pre-suspension by free radical polymerization after adding an initiator and a stabilizer, introducing nitrogen into the pre-suspension, performing heating to obtain a polymer suspension, and drying the polymer suspension to obtain the microsphere powder, wherein the polyurethane acrylate is obtained by dropwise adding polyol to isocyanate and performing blocking by a hydroxyl-containing acrylate monomer. The method is simple, no solvent is used, and industrial production and application of microspheres are facilitated. The obtained polymer microspheres have high elasticity and monodispersion, elasticity, particle size and particle size distribution of the product can be controlled by simply changing experimental conditions, and the product can be widely applied to cosmetics and coatings to increase elasticity and touch.

Description

technical field [0001] The invention belongs to the technical field of polymer polymerization, and more specifically relates to a monodisperse micron-scale elastic microsphere powder and its preparation method and application. Background technique [0002] Polymer elastic microspheres are widely used in various fields of daily life due to their excellent elasticity and lubricity. For example, cosmetics, resin and coating modification, biomedicine. At present, polymer elastic microspheres are mainly prepared by precipitation polymerization and emulsion polymerization. Among them, precipitation polymerization is an effective method to prepare polymer microspheres with controllable morphology, which has attracted much attention in recent years. Compared with emulsion polymerization, dispersion polymerization has the advantages of pure product and narrow particle size distribution; however, when microspheres are prepared by precipitation polymerization, the crosslinking densit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/18C08F220/14C08F2/18C08G18/42C08G18/44C08G18/48C08G18/67C08G18/73C08G18/75C08G18/76C08J3/12C08L51/08
CPCC08F2/18C08F283/008C08G18/4018C08G18/4238C08G18/4277C08G18/44C08G18/4808C08G18/4825C08G18/4854C08G18/672C08G18/73C08G18/755C08G18/758C08G18/7642C08J3/122C08J2351/08C08G18/48C08G18/42C08F220/1803
Inventor 何宇林俊杰曾义刘泽鹏杨德彬贾国忠
Owner 广州五行材料科技有限公司
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