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Multifunctional polyacrylate nano composite coating agent and preparation method thereof

A polyacrylate and nanocomposite technology, applied in coatings, biocide-containing paints, antifouling/underwater coatings, etc. To achieve the effect of improving hygienic properties, increasing tensile strength and elongation at break, and improving thermal stability

Inactive Publication Date: 2021-01-22
汤普勒新材料嘉兴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a multifunctional polyacrylate nano-composite coating agent and preparation method thereof, which can not only solve the problem of polyacrylic acid coating agent hot stickiness, cold brittleness, poor heat resistance and solvent resistance. At the same time, it can significantly improve the breathability and vapor permeability of the finished leather products, and endow the leather with long-lasting antibacterial properties

Method used

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  • Multifunctional polyacrylate nano composite coating agent and preparation method thereof
  • Multifunctional polyacrylate nano composite coating agent and preparation method thereof
  • Multifunctional polyacrylate nano composite coating agent and preparation method thereof

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preparation example Construction

[0034] Such as figure 1 Shown, the present invention also provides a kind of preparation method of multifunctional polyacrylate nano-composite finishing agent, and it comprises the steps:

[0035] S1: providing the solid inorganic nanoparticles, a dispersant, and deionized water, wherein the amount of the dispersant is 0.1% to 10% of the mass of the deionized water;

[0036] S2: adding solid inorganic nanoparticles and a dispersant to a certain amount of deionized water, and ultrasonically dispersing for 10 to 60 minutes to obtain a nanoparticle dispersion formed by the dispersant, solid inorganic nanoparticles, and deionized water, wherein the The mass fraction of the solid inorganic nanoparticles in the nanoparticle dispersion is 0.5% to 20%;

[0037] S3: Provide enoic acid monomers, enoic acid ester monomers and vinylimidazole ionic liquid monomers;

[0038] S4: adding enoic acid monomers, enoic acid ester monomers, and vinylimidazole ionic liquid monomers into the nanopa...

Embodiment 1

[0045] Add 1.0 parts of nano-alumina with a particle size of 15nm and 0.5 parts of citric acid to 100 parts of deionized water, and ultrasonically disperse for 20 minutes at a frequency of 40kHz and a power of 350W to obtain nano-alumina with a mass fraction of 1%. Dispersions.

[0046] Get 7.2 parts of acrylic acid, 10.2 parts of methyl methacrylate, 12.8 parts of butyl acrylate and 7.3 parts of 1-vinyl-3-methylimidazole chloride and join the above-mentioned nano-alumina dispersion with a mass fraction of 1%, nitrogen Bubble and stir for 20 minutes to remove oxygen, add 1.0 part of sodium lauryl sulfate and 0.5 part of ammonium persulfate, and heat-initiate polymerization at 60°C for 4 hours to obtain a multifunctional polyacrylate nanocomposite coating agent.

Embodiment 2

[0048] Add 10 parts of nanometer zirconium hydroxide with a particle size of 30nm and 4 parts of propylene glycol methyl ether to 100 parts of deionized water, and ultrasonically disperse it for 50 minutes at a frequency of 50kHz and a power of 400W to obtain nanometer particles with a mass fraction of 5%. Zirconium hydroxide dispersion.

[0049] Get 12.9 parts of methacrylic acid, 19.2 parts of butyl acrylate, 13.1 parts of 2-methoxyethyl acrylate and 10.2 parts of 1-vinyl-3-ethylimidazole bromide and add them to the above-mentioned nano hydrogen with a mass fraction of 5%. In the zirconia dispersion liquid, helium gas was bubbled and stirred for 60 minutes to remove oxygen, 2.0 parts of sodium dodecylbenzenesulfonate and 1.0 part of potassium persulfate were added, and thermally initiated polymerization at 75°C for 3 hours to obtain multifunctional polyacrylate Nanocomposite coating agent.

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Abstract

The invention relates to a multifunctional polyacrylate nano composite coating agent and a preparation method thereof. The multifunctional polyacrylate nano composite coating agent is prepared from the following raw materials: solid inorganic nanoparticles, a dispersing agent, deionized water, an olefine acid monomer, an olefine acid ester monomer, a vinyl imidazole ionic liquid monomer, an emulsifier and an initiator. The olefine acid monomer, the olefine acid ester monomer and the vinyl imidazole ionic liquid monomer are subjected to free radical emulsion polymerization under the action of the emulsifier and the initiator to form the composite coating agent. According to the composite coating agent, solid inorganic nanoparticles formed by nano aluminum oxide, nano zirconium hydroxide ornano hydroxyapatite are introduced into a polypropylene ester copolymer system, and the nanoparticles are used as a reinforcing material so that the tensile strength of a coating film is remarkably improved. Meanwhile, after the coating agent forms a film, a porous network structure can be formed on the surface of the leather so that the air permeability and the air permeability of the coated leather can be improved, and the leather is endowed with lasting antibacterial ability.

Description

technical field [0001] The invention relates to the technical field of leather processing, in particular to a multifunctional polyacrylate composite finishing agent and a preparation method thereof. Background technique [0002] Leather products are favored by people because of their special surface texture, excellent softness and durability. Leather is derived from various animal skins, and its excellent performance comes from the tanning effect of various preparations on raw hide collagen fibers and its subsequent finishing and processing. [0003] Finishing is the last process of leather production. Its main purpose is to increase the appearance of leather and improve the performance of leather, such as resistance to dry or wet rubbing, abrasion resistance, and weather resistance. The main component of the finishing agent is a polymer substance that can form a film on the leather surface, that is, a film-forming agent. The performance of the film former is a key factor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D7/61C09D5/14C09D135/00C09D133/02C14C11/00
CPCC08K2003/2227C08K2003/2244C08K2003/325C08K2201/003C08K2201/011C09D5/14C09D139/04C14C11/003C09D7/61C08K3/22C08K3/32
Inventor 张建维陈正栓陈飞唐朝辉
Owner 汤普勒新材料嘉兴有限公司
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