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Waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion and preparation method and application thereof

A polymer emulsion and acrylate technology, applied in the direction of coating, can solve the problems of affecting the final performance of the coating film, cumbersome interfacial force, unfavorable industrialization, etc., and achieve a simple and feasible preparation method, high wear resistance, high hardness, and excellent resistance. heat effect

Active Publication Date: 2013-09-11
建德市新安有机硅新材料研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the weak binding force between the organic and inorganic components of the water-based organic-inorganic polymer emulsion, phase separation is prone to affect the final performance of the coating film, and the surface modification of the inorganic components is required to enhance the interfacial force between the organic and inorganic components. The process is cumbersome and inconvenient. Conducive to problems such as industrialization, the present invention provides a waterborne organic-inorganic fluorosilicon-modified acrylate polymer emulsion, the water-based organic-inorganic fluorosilicon-modified acrylate polymer emulsion of the present invention integrates Si-O-Si bonds with high energy Excellent heat resistance, scratch resistance, abrasion resistance and high hardness, etc. It also combines the excellent aging resistance, scrub resistance, water resistance and stain resistance of the fluorine-containing acrylate polymer emulsion coating

Method used

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  • Waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion and preparation method and application thereof
  • Waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion and preparation method and application thereof
  • Waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) In parts by weight, weigh each component according to parts by weight in Table 1;

[0037] Table 1:

[0038]

[0039] Methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate are prepared into mixed monomer I copolymer, the glass transition temperature of mixed monomer I copolymer is about -5 °C, and 1.0 part of initiator is over Potassium sulfate was dissolved in 15 parts of water to make an initiator solution.

[0040] (2) Add 3 parts of ammonia water, 0.5 parts of emulsifier SDS, 1.0 part of OP-10 and 50 parts of water into the reaction kettle, stir for 20 minutes and then raise the temperature to 50 ℃. Then, 2 parts of γ-methacryloxypropyltrimethoxysilane were added in 0.5 hours, and reacted for 12 hours to obtain a product solution.

[0041] (3) Warm up the product solution obtained in step (2) to 78°C, then add the mixed monomer I and initiator solution in step (1) dropwise to the heated step (2) product solution in 3 hours, drop After the...

Embodiment 2

[0046] (1) In parts by weight, weigh each component according to parts by weight in Table 2;

[0047] Table 2:

[0048]

[0049] Methyl methacrylate, ethyl methacrylate, butyl acrylate, pentyl acrylate, and dodecafluoroheptyl acrylate are used to make mixed monomer I copolymers, and the glass transition temperature of mixed monomer I copolymers is about -10 °C , and 1.5 parts of initiator sodium persulfate was dissolved in 20 parts of water to make initiator solution.

[0050] (2) Add 2 parts of sodium hydroxide, 0.7 parts of DSB, 1.0 part of OP-30 and 50 parts of water into the reaction kettle, stir for 30 minutes and then raise the temperature to 55 ℃. Then, 3 parts of vinyltriethoxysilane were added in 1 hour, and reacted for 18 hours to prepare a product solution.

[0051] (3) Warm up the product solution prepared in step (2) to 80°C, then add the mixed monomer I and initiator solution prepared in step (1) dropwise to the product solution in step (2) after heating up ...

Embodiment 3

[0056] (1) In parts by weight, weigh each component according to parts by weight in Table 3;

[0057] table 3:

[0058]

[0059] Ethyl methacrylate, propyl methacrylate, methyl acrylate and tridecafluorooctylethyl acrylate are made into mixed monomer I copolymer, and the glass transition temperature of mixed monomer I copolymer is about 30 °C, and 0.9 parts of initiator ammonium persulfate was dissolved in 10 parts of water to make initiator solution.

[0060] (2) Add 1.8 parts of potassium hydroxide, 0.4 parts of LAS, 0.8 parts of NP-15 and 50 parts of water into the reaction kettle, stir for 15 minutes and then raise the temperature to 45 °C. Then, 1.8 parts of vinyltrimethoxysilane was added in 0.5 hours, and reacted for 24 hours to prepare a product solution.

[0061] (3) Warm up the product solution prepared in step (2) to 76°C, then add the mixed monomer I and initiator solution prepared in step (1) dropwise to the product solution in step (2) after heating up in 3 ...

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Abstract

The invention relates to the technical field of organic and inorganic hybrid materials. In order to solve the problems that organic and inorganic components of a waterborne organic and inorganic polymer emulsion are weakly bonded and easy to separate to affect the final performance of a coating, and the process of modifying the surfaces of the inorganic components to enhance the interfacial force between the organic and inorganic components is tedious to the disadvantage of industrialization and the like, the invention provides a waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion, wherein the emulsion uses an inorganic part formed by hydrolysis of a silane coupling agent containing an alkene unsaturated group as a core, and alkyl methacrylate, alkyl acrylate, fluorinated acrylate or fluorinated methacrylate as a shell. The waterborne organic and inorganic fluorosiloxane modified acrylate polymer emulsion provided by the invention has the excellent performances of heat resistance, scraping resistance, wear resistance, high hardness and the like, and further has the performances of antiaging, scrubbing resistance, water resistance, contamination resistance and the like. The emulsion provided by the invention is simple in preparation method and suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of organic-inorganic hybrid materials, in particular to a water-based organic-inorganic fluorine-silicon-modified acrylate polymer emulsion, a preparation method thereof, and an application in architectural interior and exterior wall coatings and wood coatings. Background technique [0002] With the improvement of environmental regulations and the enhancement of people's awareness of environmental protection, more attention has been paid to the emulsion polymerization method using water as the medium, which has also greatly promoted the development of emulsion polymerization technology. As an environmentally friendly product, water-based acrylate emulsion has the characteristics of good gloss retention, excellent film-forming property, environmental protection and pollution-free, and is widely used in various fields such as architectural coatings, wood coatings and adhesives. However, it also has some shortc...

Claims

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Application Information

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IPC IPC(8): C08F283/12C08F220/14C08F220/18C08F220/22C08F2/30C08F2/26C08G77/20C08G77/14C09D151/08
Inventor 裴勇兵钟颖吴连斌汤龙程陈遒蒋剑雄来国桥
Owner 建德市新安有机硅新材料研究所
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