Fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula

A pre-dispersed masterbatch and fluororubber technology, applied in the field of bisphenol AF pre-dispersed masterbatch, can solve the problems of poor dispersion and phase fusion, and achieve the effect of overcoming poor phase fusion and excellent vulcanization performance

Inactive Publication Date: 2015-04-08
SHANGHAI PINKE RUBBER & PLASTIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above problems, the object of the present invention is to overcome the problems of poor dispersion and phase fusion of traditional vulcanizing agents in fluororubber, thereby producing fluororubber pre-dispersed masterbatch particles

Method used

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  • Fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Put 4.8kg of ternary copolymerized fluororubber into the open mill to pull it through, and after 5 minutes, put it into 5kg of bisphenol AF (2,2-bis-(4-hydroxyphenyl)hexafluoropropane) powder , control the temperature of the roller at 90-110°C, after 15 minutes of mixing, add 1kg of stearic acid, 1kg of polyethylene wax and continue mixing for 5 minutes before unloading, put the material on the platform for parking, park for 3-24 hours, put it again Put the material on the open mill for mixing. At this time, the temperature of the roller is controlled between 60-80°C, and the material can be discharged after mixing for about 10 minutes. The bisphenol AF (2,2-bis-(4-hydroxyphenyl)hexafluoropropane) pre-dispersed masterbatch is obtained, and finally granulated by a single-screw extruder.

Embodiment 2

[0016] Put 3.0kg of vinylidene fluoride / ethylene fluoride and vinylidene fluoride / tetrafluoroethylene / fluoropropylene into the open mill to pull it out. After 5 minutes of thinning, put 3.5kg of bisphenol AF (2, 2-bis-(4-hydroxyphenyl)hexafluoropropane) powder, control the roller temperature at 90-110°C, knead for 15 minutes, add 0.3kg glycerol monostearate and zinc stearate, 0.1kg Ester wax and palm wax continue to mix for 5 minutes before feeding, put the material on the platform and park it for 3-24 hours, put the material on the open mill again for mixing, and control the roller temperature at 60-80°C In between, mixing for about 10 minutes can be discharged. The bisphenol AF (2,2-bis-(4-hydroxyphenyl)hexafluoropropane) pre-dispersed masterbatch is obtained, and finally granulated by a single-screw extruder.

Embodiment 3

[0018] Put 7.0kg of vinylidene fluoride / tetrafluoroethylene / metafluoropropylene fluororubber, metafluoride propylene / ethylene fluororubber and tetrafluoroethylene / propylene fluororubber into the open mill for thinning, after 5 minutes of thinning, put 5.5kg bisphenol AF (2,2-bis-(4-hydroxyphenyl) hexafluoropropane) powder, control the roll temperature at 90-110°C, knead for 15 minutes, add 3kg zinc stearate, 0.8kg Ester wax, palm wax and paraffin wax continue to be mixed for 5 minutes before feeding, put the materials on the platform for parking, park for 3-24 hours, put the materials on the open mill again for mixing, and control the temperature of the rollers at 60-80 ℃, mixing for about 10 minutes can be discharged. The bisphenol AF (2,2-bis-(4-hydroxyphenyl)hexafluoropropane) pre-dispersed masterbatch is obtained, and finally granulated by a single-screw extruder.

[0019] The bisphenol AF pre-dispersed masterbatch particle carrier fluorine rubber for the above-mentioned ...

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Abstract

The invention discloses a fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula prepared from the following raw materials by mass: 30-70 parts of bisphenol AF; 35-55 parts of fluorubber; 0.1-10 parts of a dispersant; 0.1-10 parts of a release agent; and 0-1 parts of a colorant. The fluorubber as a carrier is cooperated with the dispersant and the release agent, the bisphenol AF curing agent is mixed into the fluorubber on an open blending machine, so that the bisphenol AF is fully dispersed uniformly in the fluorubber, the bisphenol AF curing agent has excellent curing properties in the fluorubber, and can meet the use requirements. The fluorubber use bisphenol AF pre-dispersion mother colloidal particle formula can improve the dispersion of the fluorubber curing agent bisphenol AF (2, 2-bis-(4-hydroxy phenyl) hexafluoropropane) and BPP (tri phenyl phosphorus chloride) in the fluorubber, and overcomes the problems of the poor dispersion and mutual smelting of a traditional curing agent in the fluorubber.

Description

technical field [0001] The invention relates to a formula of bisphenol AF pre-dispersed master batches for fluorine rubber, in particular to the bisphenol AF pre-dispersed master batches used in fluorine rubber vulcanized products. Background technique [0002] Fluorine rubber is a special rubber with excellent performance and high price. The vulcanization of fluorine rubber adopts bisphenol AF (2,2-bis-(4-hydroxyphenyl) hexafluoropropane) and BPP (triphenylphosphine chloride) vulcanization, because bisphenol AF (2,2-bis-( 4-Hydroxyphenyl)hexafluoropropane) is a powder with a particle size of 60-80 meshes. It is not easy to disperse and melt in fluororubber. Generally, two-stage mixing is adopted in factories, that is, fluororubber and various formulations are generally mixed. Auxiliaries are refined together by an open rubber mixer. Add vulcanizing agent bisphenol AF (2,2-bis-(4-hydroxyphenyl) hexafluoropropane) and BPP (triphenylphosphine chloride), all raw materials are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L27/16C08L27/18C08L27/20C08K5/136C08K5/09C08K5/103C08K5/098C08J3/22
CPCC08L27/12C08J3/226C08J2427/12C08J2427/16C08J2427/18C08J2427/20C08L27/16C08L27/18C08L27/20C08L2205/03C08L2205/035C08L23/06C08K5/136C08K5/09C08L91/06C08K5/098C08K5/103
Inventor 蒋顶胜
Owner SHANGHAI PINKE RUBBER & PLASTIC MATERIAL
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