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Liquid crystal polymer material reinforced by glass fibers with non-circular cross sections and preparation method thereof

A non-circular cross-section, liquid crystal polymer technology, used in liquid crystal materials, chemical instruments and methods, etc., can solve problems such as unsatisfactory results, achieve good mechanical properties, narrow shrinkage differences, and high interface bonding strength Effect

Inactive Publication Date: 2010-11-24
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its effect is not satisfactory, it is very necessary to further improve

Method used

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  • Liquid crystal polymer material reinforced by glass fibers with non-circular cross sections and preparation method thereof
  • Liquid crystal polymer material reinforced by glass fibers with non-circular cross sections and preparation method thereof
  • Liquid crystal polymer material reinforced by glass fibers with non-circular cross sections and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Type A glass fiber: rectangular cross-section glass fiber, 3mm long, 28μm wide, 7μm thick, flattening rate 4;

[0037] B-type glass fiber: cocoon-shaped cross-section glass fiber, 3mm long, 20μm wide, 10μm thick, and the flattening rate is 2;

[0038] C-type glass fiber: glass fiber with circular cross-section, 3mm long and 11μm in diameter;

[0039] It also includes LCP resin, polycarbonate, carbon fiber, 3000 mesh talc powder, PE wax lubricant and zeolite flame retardant synergist, etc.

[0040] The molding materials of the components in Table 1 were produced on a twin-screw extruder according to the manufacturing method described in the present invention. The produced molding materials were treated in a dehumidifying dryer at 160°C for 4 hours, and then molded in a conventional injection molding machine for the required samples for the following tests.

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Abstract

The invention provides a liquid crystal polymer material reinforced by glass fibers with non-circular cross sections. A liquid crystal polymer material with high flowability, low buckling deformation and high weld line strength is obtained by replacing a conventional liquid crystal polymer reinforced with glass fibers with circular cross sections with glass fibers with the non-circular cross sections, and particularly, the improvement effect achieved by adopting glass fibers with rectangular cross sections is more obvious.

Description

technical field [0001] The invention relates to the modification technology of thermotropic liquid crystal polymers, in particular to a non-circular cross-section glass fiber reinforced liquid crystal polymer material and its preparation technology and finished product. Background technique [0002] Thermotropic liquid crystal polymer (TLCP) has an unusually regular fibrous structure due to the orientation of its macromolecular chains in the liquid crystal state. It has special properties and high product strength, which is no less than that of metals and ceramics. It has excellent mechanical properties, dimensional stability, optical properties, electrical properties, chemical resistance, flame retardancy, processability, heat resistance and low thermal expansion coefficient, and is widely used in electronic and electrical components. [0003] Since the molecular chain of liquid crystal polymer is a rigid molecular chain, it is easy to be oriented along the flow direction d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/03C08L77/12C08L79/08C08K7/14C08K3/34C09K19/38C09K19/52
Inventor 姜苏俊易庆锋蒋智强宁方林
Owner KINGFA SCI & TECH CO LTD
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