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Long-fiber reinforced polypropylene/nylon composite and preparation method thereof

A nylon composite material and polypropylene technology, which is applied in the field of polymer materials, can solve the problems of limited application, inability to obtain mechanical properties of long fiber reinforced polypropylene/nylon composite materials, and prone to delamination, and achieves the effect of excellent mechanical properties.

Inactive Publication Date: 2018-03-06
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since polypropylene is non-polar and incompatible with highly polar nylon resins, it is prone to delamination when mixed, so this method cannot obtain long-fiber reinforced polypropylene / nylon composites with excellent mechanical properties, which limits application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The homopolypropylene resin PP-1 of 59kg, the maleic anhydride grafted polypropylene (PP-g-MAH) of 1kg are mixed, adopt the pultrusion process to make the long glass fiber reinforced polypropylene composite resin that glass fiber content is 40kg Masterbatch, the glass fibers are arranged parallel to each other along the length direction of the masterbatch particles, and the length is the same as that of the masterbatch particles, which is 6mm; the processing temperature is 210°C.

[0028] At the same time, 20kg of homopolymerized polypropylene resin PP-1, 10kg of maleic anhydride grafted polypropylene (PP-g-MAH) and 70kg of nylon 6 were mixed, and melted and kneaded by a double-bar extruder to obtain Polypropylene / nylon alloy thinning resin.

[0029] Then, 95kg of long glass fiber reinforced polypropylene masterbatch was blended with 5kg of polypropylene / nylon alloy diluted resin, and injection molded into a standard mechanical test sample for testing. The test results ...

Embodiment 2

[0036] Mix 45kg of homopolypropylene resin PP-1 and 5kg of maleic anhydride grafted polypropylene (PP-g-MAH), and use the pultrusion process to make a long glass fiber reinforced polypropylene composite resin with a glass fiber content of 50kg Masterbatch, the glass fibers are arranged parallel to each other along the length direction of the masterbatch particles, and the length is the same as that of the masterbatch particles, which is 12mm; the processing temperature is 250°C.

[0037] At the same time, 20kg of homopolypropylene resin PP-1, 10kg of maleic anhydride grafted polypropylene (PP-g-MAH) and 70kg of nylon 66 were mixed, and melt kneaded and blended by twin-screw extruder to obtain poly Acrylic / nylon alloy thinned resin.

[0038] Then, 80kg of long glass fiber reinforced polypropylene masterbatch was blended with 20kg of polypropylene / nylon alloy diluted resin, and injection molded into a standard mechanical test sample for testing. The test results are shown in Tab...

Embodiment 3

[0040] Mix 40kg of homopolypropylene resin PP-1 and 5kg of maleic anhydride grafted polypropylene (PP-g-MAH), and use the pultrusion process to make a long glass fiber reinforced polypropylene composite resin with a glass fiber content of 50kg Masterbatch, the glass fibers are arranged parallel to each other along the length direction of the masterbatch particles, and the length is the same as that of the masterbatch particles, which is 12mm; the processing temperature is 250°C.

[0041] At the same time, 20kg of homopolypropylene resin PP-1, 10kg of maleic anhydride grafted polypropylene (PP-g-MAH) and 70kg of nylon 6 were mixed, and melted and kneaded by a twin-screw extruder to obtain a poly Acrylic / nylon alloy thinned resin.

[0042] Then, 80kg of long glass fiber reinforced polypropylene masterbatch was blended with 20kg of polypropylene / nylon alloy diluted resin, and injection molded into a standard mechanical test sample for testing. The test results are shown in Table 1....

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PUM

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Abstract

The invention discloses a long fiber reinforced polypropylene / nylon composite material and a preparation method thereof. The composite material is formed by blending 5-95% (weight) of long-fiber-reinforced polypropylene resin masterbatch and 5-95% (weight) of polypropylene / nylon alloy diluted resin. The long-fiber reinforced polypropylene / nylon composite material of the invention has the advantages of excellent physical and mechanical properties, color stability of products, stable production and processing, and the like. At the same time, the preparation method of the invention has the advantages of simple control, low cost and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a long fiber reinforced polypropylene / nylon composite material and a preparation method thereof. Background technique [0002] 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. [0003] Polypropylene has the characteristics of light weight, low water absorption, good electrical insulation performance, good fluidity and easy molding, but the mechanical properties and heat resistance of long fiber reinforced polypropylene materials are far inferior to long fiber reinforced nylon resins; on the othe...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08L77/02C08L77/06C08K7/14C08J5/04
CPCC08L23/12C08J5/043C08J2323/12C08J2351/04C08J2423/12C08J2451/04C08K2201/004C08L51/06C08L2205/025C08L2205/035C08L77/02C08K7/14C08L77/06
Inventor 李明珏崔成杰谢众
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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