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Impact resistant PET/LCP (Polyethylene Terephthalate/Liquid Crystal Polymer) composite material

A technology of composite materials and raw materials, applied in the field of impact-resistant PET/LCP composite materials, can solve the problems of high price of LCP materials, brittle products of LCP materials, and reduced comprehensive performance, so as to reduce LCP content, improve brittleness, and improve comprehensive performance Effect

Inactive Publication Date: 2019-02-26
FOSHAN HEHONG TAIYE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although LCP materials have so many excellent properties, the price of a single LCP material is high, and the current market price has reached 7 US dollars per kilogram, which is very expensive, and the LCP material products are very brittle, which greatly reduces its overall performance.

Method used

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  • Impact resistant PET/LCP (Polyethylene Terephthalate/Liquid Crystal Polymer) composite material
  • Impact resistant PET/LCP (Polyethylene Terephthalate/Liquid Crystal Polymer) composite material
  • Impact resistant PET/LCP (Polyethylene Terephthalate/Liquid Crystal Polymer) composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Impact-resistant PET / LCP composite material, its raw material components in parts by mass are:

[0021]

[0022]

[0023] Its preparation method is:

[0024] Weigh PET, LCP, glass fiber, kapok, dioctyl phthalate, PE‐g‐ST, antioxidant 1010, stearic acid and glass powder of the above components;

[0025] Put the PET and LCP in the drier, the temperature of the drier is 110°C, the drying time is 30min, and set aside;

[0026] Add the dried PET and LCP, dioctyl phthalate, PE‐g‐ST, antioxidant 1010, stearic acid and glass powder into the high mixer, the temperature of the high mixer is 80°C, and the mixing time is 100min, obtain mixed material;

[0027] Put the mixture into the twin-screw extruder, control the screw speed to 600r / min, and the temperature of each zone in the cavity is as follows: the temperature of the first zone is 255°C, the temperature of the second zone is 270°C, the temperature of the third zone is 275°C, and the temperature of the fourth zone is...

Embodiment 2

[0029] Impact-resistant PET / LCP composite material, its raw material components in parts by mass are:

[0030]

[0031]

[0032] Its preparation method is:

[0033] Weigh PET, LCP, glass fiber, sisal, dibutyl phthalate, ABS-g-MAH, antioxidant 264, butyl stearate and asbestos powder of the above components;

[0034] Put the PET and LCP in the drier, the temperature of the drier is 104°C, the drying time is 33min, and set aside;

[0035] Add the dried PET and LCP, dibutyl phthalate, ABS‐g‐MAH, antioxidant 264, butyl stearate and asbestos powder into the high mixer, the temperature of the high mixer is 76°C, and mix Time is 120min, obtains mixed material;

[0036] Put the mixture into the twin-screw extruder, control the screw speed to 580r / min, and the temperature of each zone in the cavity is as follows: the temperature of the first zone is 263°C, the temperature of the second zone is 262°C, the temperature of the third zone is 273°C, and the temperature of the fourth z...

Embodiment 3

[0038] Impact-resistant PET / LCP composite material, its raw material components in parts by mass are:

[0039]

[0040] Its preparation method is:

[0041] Weigh PET, LCP, glass fiber, flax, dioctyl phthalate, PP‐g‐MAH, antioxidant 1076, oleamide and mica powder of the above components;

[0042] Put the PET and LCP in the drier, the temperature of the drier is 90°C, the drying time is 40min, and set aside;

[0043] Add the dried PET and LCP, dioctyl phthalate, PP‐g‐MAH, antioxidant 1076, oleamide and mica powder into the high mixer, the temperature of the high mixer is 60°C, and the mixing time is 160min , get the mixture;

[0044] Put the mixture into the twin-screw extruder, control the screw speed to 400r / min, and the temperature of each zone in the cavity is as follows: the temperature of the first zone is 265°C, the temperature of the second zone is 260°C, the temperature of the third zone is 265°C, and the temperature of the fourth zone is 265°C. The temperature is...

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PUM

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Abstract

The invention discloses an impact resistant PET / LCP (Polyethylene Terephthalate / Liquid Crystal Polymer) composite material which comprises the following raw material components in parts by mass: 35-45parts of PET, 55-62 parts of LCP, 28-35 parts of glass fiber, 15-25 parts of natural fiber, 0.1-0.5 part of a plasticizer, 8-14 parts of a compatilizer, 0.8-1.2 parts of an antioxidant, 1-4 parts ofa lubricant and 16-30 parts of a filling agent. As LCP is modified through the PET and the glass fiber, the content of LCP in the composite material is reduced, the cost of the composite material is greatly lowered, the modified composite material has very good impact resistance, the problem that an LCP material is crispy is solved, and comprehensive properties are improved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an impact-resistant PET / LCP composite material. Background technique [0002] LCP (liquid crystal polymer) is self-reinforced: it has an unusually regular fibrous structure, so unreinforced liquid crystal plastics can reach or even exceed the mechanical strength and mold strength of ordinary engineering plastics reinforced with dozens of percent glass fibers. Liquid crystal polymers also have excellent thermal stability, heat resistance and chemical resistance, and the creep characteristics of most plastics are negligible for liquid crystal materials, and they are excellent in wear resistance and friction reduction; LCP has good weather resistance and radiation resistance, and has excellent flame retardancy, which can extinguish the flame without continuing to burn. Its combustion level reaches UL94V-0 level; LCP has excellent electrical insulation properties. Its dielectric st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/12C08L67/02C08L97/02C08L1/02C08K7/14
CPCC08L101/12C08L2205/16C08L67/02C08L97/02C08L1/02C08K7/14
Inventor 甘立军
Owner FOSHAN HEHONG TAIYE TECH CO LTD
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