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Thermoprocessable per(halo)fluoropolymer composition

A composition and polymer technology, applied in the field of per(halogen) fluoropolymer composition, can solve the problems of dispersion of inorganic fillers, etc.

Inactive Publication Date: 2013-10-23
SOLVAY SOLEXIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There is therefore currently a deficit in the field of suitable additives for thermally processable per(halo)fluoropolymers that enable inorganic Excellent dispersion of fillers

Method used

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  • Thermoprocessable per(halo)fluoropolymer composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0171] Mix 70g in a rolling mill PFA7000 and 5% w / w Additive IP-1 for 30 minutes and then fed into the test heating mixer. The values ​​of torque and temperature after 400 seconds were 2 Nm and 359° C., respectively.

example 2

[0172] Example 2 (comparison):

[0173] 70g PFA7000 and 5% w / w HD80 were mixed in a rolling mill for 30 minutes and then fed into the test heating mixer. The values ​​of torque and temperature after 400 seconds were 18 Nm and 372°C, respectively.

[0174] A comparison of the performance of Examples 1 and 2C in a heated mixer with the same micron-sized inorganic filler shows very well the presence of polymer (E) (in the form coated on the inorganic filler particles Under the introduction of the situation) can instantaneously reduce the torque value and melting temperature.

example 3

[0176] 70g PFA7000 and 5% w / w Additive IP-2 were mixed in a rolling mill for 30 minutes and then fed into the test heating mixer. The values ​​of torque and temperature after 400 seconds were 14 Nm and 364°C, respectively.

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Abstract

The invention pertains to a thermoprocessable composition comprising: at least one thermoprocessable per(halo)fluoropolymer [polymer (A)]; at least one inorganic filler [filler (I)]; and at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain Rf), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain Ra) comprising recurring units of formula: -(CR1R2-CR3R4)- wherein R1, R2, R3, R4, equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C1-C6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

Description

[0001] This application claims priority from European application EP10196005.2 filed on December 20, 2011, the entire content of which application is hereby incorporated by reference for all purposes. technical field [0002] The present invention relates to thermally processable per(halo)fluoropolymer compositions comprising inorganic fillers and containing certain perfluoropolyether additives capable of substantially improving the dispersion of the fillers as well as processability performance and final mechanical properties . Background technique [0003] Thermally processable per(halo)fluoropolymers, notably comprising copolymers of tetrafluoroethylene and perfluoroalkyl vinyl ethers or perfluoroolefins (eg, hexafluoropropylene), are the materials of choice in high-end applications ; Notably high-end applications include cable sheathing, coatings and components in the chemical industry, where resistance in extremely harsh environments (exposure to chemicals, high tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/02C08G65/00C08L27/00
CPCC08L27/00C08L53/00C08L27/18C08G2650/48C08G65/007C08L71/02C08K3/04C08K2003/3045C08L2666/04
Inventor P.科濑安纳M.阿瓦塔内奥E.迪尼科洛G.贝萨纳G.马奇安尼
Owner SOLVAY SOLEXIS