Preparation method of polyacrylate emulsion containing silicon, fluorine and phosphate group

A technology of polyacrylate emulsion, fluorine and phosphoric acid groups, which is applied in the field of preparation of polyacrylate emulsion, and can solve the problem that flame retardancy, corrosion resistance and low temperature resistance do not coexist

Active Publication Date: 2013-03-13
南京紫鸿生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects that existing polyacrylate emulsions do not coexist in flame retardancy, corrosion resistance, low temperature resistance, etc. , Synthesizing a novel polyacrylate emulsion containing silicon, fluorine and phosphoric acid groups and its preparation method

Method used

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  • Preparation method of polyacrylate emulsion containing silicon, fluorine and phosphate group

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Preparation of pre-emulsion

[0017] In parts by mass, 10 parts of deionized water, 0.4 parts of sodium lauryl sulfate, 1.2 parts of AEO-9, 3.5 parts of hydroxypropyl methacrylate, 4 parts of PAM-100, 3.5 parts of vinyltriethoxy Silane and 3 parts of dodecafluoroheptyl methacrylate were put into the reaction kettle, and the temperature was raised to 45°C under high-speed stirring, and then a mixture consisting of 33 parts of butyl acrylate, 10 parts of styrene and 5 parts of methyl methacrylate 90% of the body was slowly added to the reaction kettle, stirred for 30 minutes, and a stable milky white pre-emulsion was obtained, which was removed for subsequent use;

[0018] 2) Preparation of polyacrylate emulsion

[0019] In parts by mass, add 0.1 part of sodium lauryl sulfate, 0.2 part of AEO-9, 0.1 part of n-octanol, 0.1 part of sodium bicarbonate and 15 parts of deionized water into the reactor, stir, and heat up to 80 °C, Add 5 parts of the initiator solution and ...

Embodiment 2

[0022] 1) Preparation of pre-emulsion

[0023] In parts by mass, 15 parts of deionized water, 0.6 parts of sodium lauryl sulfate, 1.6 parts of Pingpingjia O-15, 2.5 parts of hydroxypropyl methacrylate, 3.5 parts of PAM-100, 3.8 parts of vinyl triethyl Oxysilane and 4 parts of dodecafluoroheptyl methacrylate were put into the reaction kettle, and the temperature was raised to 50°C under high-speed stirring, and then a mixture of 39 parts of butyl acrylate, 14 parts of styrene and 8 parts of methyl methacrylate was added 90% of the mixed monomers were slowly added to the reactor, stirred for 34 minutes to obtain a stable milky white pre-emulsion, which was removed for later use;

[0024] 2) Preparation of polyacrylate emulsion

[0025] In parts by mass, add 0.2 parts of sodium lauryl sulfate, 0.4 parts of Pingpingjia O-15, 0.5 parts of n-octanol, 0.5 parts of disodium hydrogen phosphate and 25 parts of deionized water into the reactor, stir, and heat up to 85 After 10°C, add 1...

Embodiment 3

[0028] 1) Preparation of pre-emulsion

[0029] In parts by mass, 12 parts of deionized water, 0.45 parts of sodium lauryl sulfate, 1.3 parts of Pingpingjia O-20, 2.9 parts of hydroxypropyl methacrylate, 3.7 parts of PAM-200, 4 parts of vinyl triethyl Oxysilane and 3.5 parts of dodecafluoroheptyl methacrylate were put into the reaction kettle, and the temperature was raised to 47°C under high-speed stirring, and then a mixture of 36 parts of butyl acrylate, 11 parts of styrene and 9 parts of methyl methacrylate was added 90% of the mixed monomers were slowly added to the reactor, stirred for 35 minutes to obtain a stable milky white pre-emulsion, which was removed for later use;

[0030] 2) Preparation of polyacrylate emulsion

[0031] In parts by mass, add 0.12 parts of sodium lauryl sulfate, 0.20 parts of Pingpingjia O-20, 0.2 parts of sodium bicarbonate, 0.2 parts of dodecyl mercaptan and 18 parts of deionized water into the reactor, stir, and heat up to 84 After ℃, add 7 pa...

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Abstract

The invention relates to a preparation method of polyacrylate emulsion containing silicon, fluorine and a phosphate group. The polyacrylate emulsion is widely applied in the fields of leather, paper and architectural decoration and finishing paint due to excellent caking property, film-forming property and mechanical properties. According to the preparation method provided by the invention, butyl acrylate, methyl methacrylate, styrene, hydroxypropyl methacrylate, vinyl triethoxy silane, phosphate functional monomer and dedecafluoroheptyl methacrylate are taken as polymerization monomers, lauryl sodium sulphate and fatty alcohol-polyoxyethylene ether are taken as emulsifiers, peroxysulphate is taken as an initiator, and a pre-emulsification seeded emulsion polymerization process is adopted for preparing the polyacrylate emulsion. According to the polyacrylate emulsion obtained by adopting the preparation method provided by the invention, fluorine, silicon and the phosphate group are introduced into a molecular structure, flame retardance, low temperature resistance, corrosion resistance, water resistance, anti-scouring property, mechanical properties and adhesiveness with materials such as metal and cement of a polymer emulsion film are obviously improved, and the obtained polyacrylate emulsion can be applied to leather, textile, metal antirust paints and decorative finish paints for an internal wall and an external wall of a building material and has good development prospect.

Description

technical field [0001] The invention relates to a preparation method of polyacrylate emulsion containing silicon, fluorine and phosphoric acid groups. In particular, it relates to a preparation method of a polymer emulsion film with good flame retardancy, low temperature resistance, corrosion resistance, water resistance, erosion resistance, mechanics and adhesion with metal, cement and other materials. technical background [0002] Polyacrylate emulsions are widely used in the fields of leather, paper and building exterior walls due to their excellent adhesion, film-forming properties and mechanical properties. At present, polyacrylate emulsions still have obvious defects in flame retardancy, water resistance, erosion resistance, weather resistance, corrosion resistance, etc., which affect the service life and application. The Chinese patent No. 201010609980.7 adds fluorine-containing monomers to the polyacrylate emulsion, thus endowing the emulsion film with strong hydrop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/14C08F220/28C08F230/02C08F230/08C08F220/22C08F2/30C08F2/26C08F4/30
Inventor 吕生华巨浩波
Owner 南京紫鸿生物科技有限公司
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