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A preparation method of modified grafted polyvinyl fluoride and modified grafted polyvinyl fluoride prepared therefrom

A polyvinyl fluoride and polyvinyl fluoride resin technology is applied in the field of modified graft polyvinyl fluoride to achieve the effects of simple process, easy control of conditions and good tensile properties of materials

Active Publication Date: 2017-02-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the modified polyvinyl fluoride resin is still in the development stage, and it is generally realized by copolymerization, blending and other polymer reactions. The method of grafting modification by free radical reaction of polyvinyl fluoride resin has not been reported in the literature.

Method used

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  • A preparation method of modified grafted polyvinyl fluoride and modified grafted polyvinyl fluoride prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0020] The weighed polyvinyl fluoride resin (Sinochem Lantian Group Co., Ltd.) and N,N-dimethylformamide (Sinopharm Chemical Preparation Company, analytical grade) were dissolved at 85°C to prepare 3% polyvinyl fluoride. Vinyl fluoride resin solution, and then add different concentrations of free radical initiators dicumyl peroxide (DCP, Jinke Fine Chemical Research Institute, Tianjin, analytically pure) and divinylbenzene (DVB, Tianjin) at 95 °C. City Jinke Institute of Fine Chemicals, Analytical Pure) The specific formula of reaction 2h is shown in Table 1, wherein the contents of each component are all in parts by weight, and the obtained modified polyvinyl fluoride resin solution is cast into a film to test its material properties. The test standards and material performance test results are shown in Table 1.

Embodiment 5

[0022] The weighed polyvinyl fluoride resin (Sinochem Lantian Group Co., Ltd.) and N,N-dimethylformamide (Sinopharm Chemical Preparation Company, analytical grade) were dissolved at 80°C to prepare 2% polyvinyl fluoride. Vinyl fluoride resin solution, and then add 0.5% free radical initiator dicumyl peroxide (DCP, Tianjin Jinke Fine Chemical Research Institute, analytical grade) and 0.6% divinylbenzene ( DVB, Tianjin Jinke Fine Chemical Research Institute, analytically pure) reacted for 5h, the specific formula is shown in Table 1, wherein the contents of each component are in parts by weight, and the obtained modified polyvinyl fluoride resin solution is cast to form a film test Its material properties, its test standards and material performance test results are shown in Table 1.

Embodiment 6

[0024] The weighed polyvinyl fluoride resin (Sinochem Lantian Group Co., Ltd.) and N,N-dimethylformamide (Sinopharm Chemical Preparation Company, analytical grade) were dissolved at 95°C to prepare 5% polyvinyl fluoride. Vinyl fluoride resin solution, then add 0.5% free radical initiator dicumyl peroxide (DCP, Tianjin Jinke Fine Chemical Research Institute, analytical grade) and 0.6% divinylbenzene (DVB) at 105 °C , Tianjin Jinke Fine Chemical Research Institute, analytically pure) reacted for 1h, the specific formula is shown in Table 1, wherein the contents of each component are in parts by weight, and the obtained modified polyvinyl fluoride resin solution is cast into a film to test its The material performance, its test standard and material performance test results are shown in Table 1.

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Abstract

The invention discloses a preparation method of modified graft polyvinyl fluoride and the prepared modified graft polyvinyl fluoride. The method includes the steps of: adding a free radical initiator and olefin radical monomers in a polyvinyl fluoride resin solution at the temperature of 65 to 95 DEG C, mixing uniformly, stirring, and reacting at the temperature of 75-115 DEG C for 1-5 hr; the amount of polyvinyl fluoride resin is 100 parts by weight; the amount of free radical initiator is 0.01-15 parts by weight; and the amount of olefin monomer is 0.01-15 parts by weight. The modified graft polyvinyl fluoride resin prepared by the method has better resin solution twist and tensile properties than the polyvinyl fluoride resin obtained by the prior art, and the invention has the advantages of simple preparation process, easily controlled conditions and strong applicability.

Description

technical field [0001] The invention relates to the field of modification of polyvinyl fluoride, and furthermore, relates to a preparation method of modified grafted polyvinyl fluoride and modified grafted polyvinyl fluoride prepared therefrom. Background technique [0002] Fluoroplastics have excellent high and low temperature resistance, good resistance to chemical solvents, acid and alkali corrosion, atmospheric aging resistance and stress cracking resistance; excellent electrical insulation, self-lubricating, non-stick, non-flammable and self-sustaining It is extinguishing, does not absorb water, has the lowest coefficient of friction among all plastics, and is odorless, tasteless and non-toxic. Fluoroplastics can be used to make tubes, rods, films, bearings, linings, coatings, artificial blood vessels, cables and other products. They are widely used in chemical, electrical, electronic and mechanical industries, and are indispensable special engineering plastics in indus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F259/08
Inventor 石胜鹏叶宏项爱民徐海云金滟刘善元丁树岩蔡涛康鹏张静
Owner CHINA PETROLEUM & CHEM CORP