Composite material of containing granule stuffing and polymer of thermotropic liquid crystal preparation method and application

A technology of particle filler and thermotropic liquid crystal, which is applied to the hybrid composite material containing spherical rigid particle filler and thermotropic liquid crystal polymer, the use of the above-mentioned material, the field of preparation of the above-mentioned material, can solve the problems of poor melt fluidity and the like, and achieve improvement Processability, excellent flow properties and dimensional stability, effect of reducing viscosity

Inactive Publication Date: 2006-04-12
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the disadvantages of poor melt fluidity of nylon 6 and glass microsphere-filled nylon 6 systems, thereby providing a thermoplastic resin-based composite material containing particle fillers and thermotropic liquid crystal polymers

Method used

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  • Composite material of containing granule stuffing and polymer of thermotropic liquid crystal preparation method and application
  • Composite material of containing granule stuffing and polymer of thermotropic liquid crystal preparation method and application
  • Composite material of containing granule stuffing and polymer of thermotropic liquid crystal preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The raw material is nylon 6 (relative viscosity 3.2), hollow glass microspheres with a diameter of 3 μm and thermotropic liquid crystal polymer (PHB / HNA 73 / 27, Vectra A950, Ticona Celanese Company, USA) at a weight ratio of 84:5:11 Melting and blending on a Haake RC-90 twin-screw extruder, the temperature of each section from the feeding port to the die is set at 260-280-280-280. The extruded strands were cooled and granulated, and the rheological properties of the obtained pellets were tested on a Goettfert Rheograph 2001 capillary rheometer. The inner diameter of the capillary used was 1 mm and the aspect ratio was 30. The experimental temperature is 280°C, and the material is preheated for 4 minutes.

Embodiment 2

[0037] The weight ratio of nylon 6, glass microspheres and thermotropic liquid crystal polymer is 51 / 38 / 11, and other conditions are the same as in Example 1.

Embodiment 3

[0043] The weight ratio of nylon 6, glass microspheres and thermotropic liquid crystal polymer is 34:55:11, the specifications of hollow glass microspheres and thermotropic liquid crystal polymer are the same as in Example 1, and the preparation and testing methods are the same as in Example 1.

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Abstract

This invention discloses a complex material contg. granular packing and thermal liquid polymer (TCLP), mfg. method and use thereof. Said complex material is composed of (by wt. portion): 30-85 nylon 6, 5-70 granular packing and 1-20 TLCP, where-in, granular packing being hollow glass micro-balls (GB), solid glass micro-balls, SiO2 or CaCO3 with granularity of 1-100 mum; TLCP being main-chain type aromatic copolymer with its molten-range of 190-360 deg.C. Said complex material is made by molen-blending method. This product has excellent flow-ability and dimension-stability. It has potential superiority in mfg. thin-wall plastic products of fine-structure plastic products.

Description

technical field [0001] The invention relates to a hybrid composite material of particle filler, in particular to a hybrid composite material containing spherical rigid particle filler and thermotropic liquid crystal polymer. [0002] The invention also relates to a method for the preparation of the aforementioned materials. [0003] The invention also relates to the use of the aforementioned materials. Background technique [0004] Composite material is a multiphase composite system, which can be heterogeneous and heterogeneous or homogeneous and heterogeneous. Therefore, through different composition, different phase structure, different content and different ways of compounding, composite materials meeting different purposes can be manufactured. Addition of thermotropic liquid crystal polymers (TLCPs) to the polymer can reduce the melt viscosity of the composite and increase the strength and modulus of the material. [0005] In the past, the research on composite materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08K7/20C09K19/38
Inventor 何嘉松丁艳芬陈鹏
Owner INST OF CHEM CHINESE ACAD OF SCI
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