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Continuous long fiber reinforced composite nylon/polyolefin material and its preparation

A composite material and long-fiber technology, which is applied in the field of continuous long-fiber reinforced nylon/polyolefin composite materials and its preparation, can solve problems such as difficulty in ensuring color stability, easy yellowing of nylon resin, and increased production costs. Process control is easy, color stability is ensured, and production cost is saved

Active Publication Date: 2008-03-05
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this preparation method is: (1) to prepare two kinds of materials (long fiber reinforced nylon resin masterbatch and alloyed resin diluent), the process is more loaded down with trivial details, increased production cost; (2) produce long fiber reinforced nylon resin For masterbatch, because nylon resin is prone to yellowing, it is difficult to control the process, and it is not easy to ensure color stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Mix 36% copolymerized polypropylene (Co-PP) resin and 4% polypropylene grafted maleic anhydride (PP-g-MAH) to make a continuous glass fiber reinforcement with a glass fiber content of 60% by pultrusion Polypropylene composite resin masterbatch. Then, the masterbatch was blended with nylon 6 (PA6) resin at a ratio of 1:1, and injection molded into standard mechanical test specimens for testing. In the final composite, the content of Co-PP resin was 18%, the content of PP-g-MAH was 2%, the content of PA6 resin was 50%, and the content of glass fiber was 30%.

Embodiment 2

[0026] Mix 46.5% of homopolypropylene (Homo-PP) and 3.5% of ethylene-octene copolymer (POE) grafted with maleic anhydride (POE-g-MAH), and use a pultrusion process to make a glass fiber content of 50% continuous glass fiber reinforced polypropylene composite resin masterbatch. Then, the masterbatch was blended with nylon 66 (PA66) resin at a ratio of 3:2, and injection molded into standard mechanical test specimens for testing. In the final composite, the content of Homo-PP resin was 27.9%, the content of POE-g-MAH was 2.1%, the content of PA66 resin was 40%, and the content of glass fiber was 30%.

Embodiment 3

[0028] Mix 45% high-density polyethylene (HDPE) and 5% polyethylene-grafted glycidyl methacrylate (PE-g-GMA), and use pultrusion to make continuous glass fiber with a glass fiber content of 50% Reinforced polyethylene composite resin masterbatch. Then, the masterbatch was blended with nylon 6 (PA6) resin at a ratio of 2:3, and injection molded into standard mechanical test specimens for testing. In the final composite, the HDPE resin content was 18%, the PE-g-GMA content was 2%, the PA6 resin content was 60%, and the glass fiber content was 20%.

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Abstract

The present invention discloses one kind of continuous long fiber reinforced composite nylon / polyolefin material and its preparation process. The composite material is prepared through mixing continuous long fiber reinforced composite polyolefin resin agglomerate with high fiber content and nylon resin, and the continuous long fiber reinforced composite polyolefin resin agglomerate is prepared with continuous long fiber in 30-80 wt% and composite polyolefin resin in 20-70 wt%. The continuous long fiber reinforced composite nylon / polyolefin material of the present invention has excellent mechanical performance compared with available technology.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a continuous long fiber reinforced nylon / polyolefin composite material and a preparation method thereof. Background technique [0002] Continuous long fiber reinforced thermoplastic resin is a reinforced thermoplastic resin in which the reinforcing fibers are arranged in one direction and the length is the same as that of the resin pellets. Compared with conventional short fiber reinforced thermoplastic resins, it has more excellent mechanical properties, dynamic fatigue resistance, creep resistance, etc.; especially the impact resistance of the material is extremely excellent. Therefore, it is especially suitable to replace cast iron, aluminum and thermosetting plastics in some occasions. [0003] Although continuous long fiber reinforced nylon resin has excellent mechanical properties and heat resistance, compared with continuous long fiber reinforced polyolefin, its moisture ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/04C08L23/16C08L77/00C08J5/04C08K7/14
Inventor 姜苏俊曾详斌刘志力黄险波万勇军
Owner KINGFA SCI & TECH CO LTD
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