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Fluorine-containing resin composition and producing method thereof

A technology of fluorine-containing resin and manufacturing method, which is applied in the field of fluorine-containing resin composition and its manufacture, can solve problems such as fluororesin not mentioned, and achieve the effects of improving fluidity, improving formability, and improving extrusion formability

Inactive Publication Date: 2020-01-10
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is disclosed that the content of thermotropic liquid crystal polymer is 3 to 90% by mass, and there is no mention of fluororesin

Method used

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  • Fluorine-containing resin composition and producing method thereof

Examples

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Embodiment 1～2

[0068] Using a twin-screw extruder, kneading was carried out at a cylinder temperature of 290 to 315° C. in accordance with the compounding amount of the liquid crystal polymer shown in Table 1, to prepare a fluorine-containing resin composition. The obtained fluorine-containing resin composition was injection-molded with an injection molding machine set at a cylinder temperature of 270 to 300°C, a nozzle temperature of 300°C, and a mold temperature of 100°C, and molded dumbbell-shaped test pieces and bending test pieces.

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Abstract

The invention provides a fluorine-containing resin composition and a producing method thereof, wherein the fluidity of the composition is greatly improved. The present invention relates to a fluorine-containing resin composition, which contains 99.99-97% by mass of a fluorine resin having a melting point of 205-225 DEG C and 0.01-3% by mass of a thermotropic liquid crystal polymer. The present invention further relates to a fluorine-containing resin composition production method, which comprises: mixing polytrifluorochloroethylene and a thermotropic liquid crystal polymer at a temperature of 285-320 DEG C.

Description

technical field [0001] The present invention relates to a fluorine-containing resin composition and a method for producing the same. Background technique [0002] Patent Document 1 discloses a composition formed of a fluororesin and a thermotropic liquid crystal polymer. However, in the examples, the content of the thermotropic liquid crystal polymer was studied at a minimum of 10% by mass, and only the mechanical properties were evaluated. [0003] In Patent Document 2, a composition formed of a fluororesin and a thermotropic liquid crystal polymer is disclosed. However, only compositions in which the content of the thermotropic liquid crystal polymer is 40 to 60% by mass are disclosed. [0004] In Patent Document 3, a composition formed of a fluororesin and a thermotropic liquid crystal polymer is disclosed. However, only compositions in which the content of the thermotropic liquid crystal polymer is 20 to 80% by mass are disclosed. [0005] Patent Document 4 discloses...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L101/12
CPCC08L27/12C08L101/12C08F114/24C08J5/18C08J2327/12C08J2467/04C08L67/04C08L67/02
Inventor 谢续明小森政二河野英树
Owner TSINGHUA UNIV
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