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PCT (Poly 1,4-Cyclohexylene Dimethylene Terephthalate) resin compound and preparation method thereof

A resin compound and resin technology, applied in the field of PCT resin compound and its preparation, can solve problems such as poor heat resistance of PCT resin, and achieve the effects of excellent heat resistance and simple production of raw materials

Active Publication Date: 2016-05-25
JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor heat resistance of existing PCT resins, the present invention provides a PCT resin compound and a preparation method thereof

Method used

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  • PCT (Poly 1,4-Cyclohexylene Dimethylene Terephthalate) resin compound and preparation method thereof
  • PCT (Poly 1,4-Cyclohexylene Dimethylene Terephthalate) resin compound and preparation method thereof
  • PCT (Poly 1,4-Cyclohexylene Dimethylene Terephthalate) resin compound and preparation method thereof

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preparation example Construction

[0033] In the preparation process of the above-mentioned wholly aromatic liquid crystal polyester resin, a solution polycondensation method or a bulk polycondensation method may be used. In order to promote the polycondensation reaction, an acylating agent can be used to pretreat the raw materials during the synthesis of the wholly aromatic liquid crystal polyester prepolymer, especially an acetylating agent can be used for pretreatment.

[0034] In the above-mentioned solid-state polycondensation reaction (solid-state polycondensation reaction), it is necessary to provide appropriate heat to the wholly aromatic liquid crystal polyester prepolymer. The specific heat supply can be through methods such as heating plates, hot air, and high-temperature fluids, and in order to remove solid-state polycondensation reactions. By-products can be removed with an inert gas purge or vacuum.

[0035] In any embodiment, the first filler is at least one of glass fiber, whisker, polytetrafluo...

Embodiment 1

[0051] A PCT resin composite, comprising the following components in parts by weight:

[0052]

[0053] The preparation method of the PCT resin compound that embodiment 1 provides is as follows:

[0054] Step S01, 30 parts of PCT resin (produced by American Eastman Chemical Company), 30 parts of fully aromatic liquid crystal polyester resin (produced by Jiangsu Water Special Materials Co., Ltd.), 30 parts of titanium dioxide, and 10 parts of glass fiber were placed in Dry at 130°C for 4 hours;

[0055] Step S02, putting the dried PCT resin, glass fiber, titanium dioxide and wholly aromatic liquid crystal polyester resin into an automatic mixer and mixing evenly to obtain a mixed material;

[0056]Step S03, putting the mixture obtained in step S02 into a twin-screw extruder for melting and kneading, and then extruding, drawing, cooling, and granulating to obtain a PCT resin compound.

Embodiment 2

[0058] A PCT resin composite, comprising the following components in parts by weight:

[0059]

[0060] The preparation method of the PCT resin compound that embodiment 2 provides is as follows:

[0061] Step S01, 40 parts of PCT resin (produced by Eastman Chemical Company of the United States), 20 parts of fully aromatic liquid crystal polyester resin (produced by Jiangsu Walter Special Materials Co., Ltd.), 30 parts of titanium dioxide, and 10 parts of glass fiber were mixed in Dry at 130°C for 4 hours;

[0062] Step S02, putting the dried PCT resin, glass fiber, titanium dioxide and wholly aromatic liquid crystal polyester resin into an automatic mixer and mixing evenly to obtain a mixed material;

[0063] Step S03, putting the mixture obtained in step S02 into a twin-screw extruder for melting and kneading, and then extruding, drawing, cooling, and granulating to obtain a PCT resin compound.

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Abstract

The invention belongs to the technical field of high molecular composite materials, and in particular discloses a PCT (poly 1,4-cyclohexylene dimethylene terephthalate) resin compound and a preparation method thereof. The PCT resin compound is prepared from the following components in parts by weight: 30 to 70 parts of PCT resin, 10 to 40 parts of liquid crystal polyester resin, 5 to 40 parts of filler I and 10 to 40 parts of filler II. The PCT resin compound provided by the invention is greatly improved in heat resistance, and meanwhile, has excellent processability and favorable light reflectivity. The compound is applicable to the field of high-power LED (light-emitting diode) reflective mirrors.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a PCT resin composite and a preparation method thereof. Background technique [0002] Because poly-1,4-cyclohexanedimethylene terephthalate (English abbreviation: PCT) has good chemical resistance, processability, dimensional stability and heat resistance, it is especially suitable for material performance requirements. strict field. In view of these characteristics of PCT, up to now, it has been widely used in industries such as automobiles, electronics and electrical industries, especially as a raw material for LED reflectors. [0003] With the development of LED-related fields, especially the large-scale use of high-power LED lamps, and high-power LED lamps will emit a lot of heat during use, it is required that the materials used to manufacture LED lamp components have good heat resistance. However, in the prior art, when PCT materials are used for high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/03C08K7/14C08K3/22
CPCC08L67/02C08L67/03C08L2201/08C08L2205/02C08L2205/12C08K7/14C08K2003/2241
Inventor 金东植高海燕杨云飞周小宇
Owner JIANGSU WATER SPECIAL MATERIAL MFG CO LTD
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