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

A technology of polyvinyl fluoride and polyvinyl fluoride resin, applied in the field of polyvinyl fluoride modification, to achieve the effects of easy control of conditions, high resin solution viscosity, and strong applicability

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 modifying polyvinyl fluoride resin itself by free radical reaction has not been reported in the literature.

Method used

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

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Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[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 initiator dicumyl peroxide (DCP, Tianjin Jinke Fine Chemical Research Institute, analytical grade) at 95°C for 2 hours. The specific formula is shown in Table 1. The content of each component is measured in parts by weight. The obtained modified polyvinyl fluoride resin solution was cast into a film to test its material performance. The test standards and material performance test results are shown in Table 1.

Embodiment 4

[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) to react for 5 hours under the condition of 85 ° C, the specific formula is shown in Table 1, The content of each component is measured in parts by weight. The obtained modified polyvinyl fluoride resin solution was cast into a film to test its material performance. The test standards and material performance test results are shown in Table 1.

Embodiment 5

[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, and then add 0.5% free radical initiator dicumyl peroxide (DCP, Tianjin Jinke Fine Chemical Research Institute, analytical grade) at 105°C for 1 hour. The specific formula is shown in Table 1, where The content of each component is measured in parts by weight. The obtained modified polyvinyl fluoride resin solution was cast into a film to test its material performance. The test standards and material performance test results are shown in Table 1.

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PUM

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Abstract

The invention discloses a preparation method of modified polyvinyl fluoride and the prepared modified polyvinyl fluoride. The method includes the steps of: adding a free radical initiator 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 0.1-15 parts by weight; and the concentration of the polyvinyl fluoride resin solution is 0.01-50%. The modified polyvinyl fluoride resin prepared by the method has better resin solution viscosity 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 polyvinyl fluoride and modified 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 industry. . [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F259/08
Inventor 石胜鹏项爱民叶宏金滟徐海云刘善元丁树岩蔡涛康鹏张静
Owner CHINA PETROLEUM & CHEM CORP