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A kind of nylon 6/polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of nylon 6/polypropylene composite material and its preparation, can solve the problem that it is difficult to ensure the uniformity of fiber dispersion, the weight stability of parts, the color stability, and the easy discoloration of nylon resin and other problems, to achieve the effect of simple structure, improved hydrolysis resistance and heat resistance, and stable weight

Active Publication Date: 2016-09-07
HEFEI GENIUS NEW MATERIALS
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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, the process is more loaded down with trivial details, increased production cost; Guaranteed color stability
The disadvantage of this method is that the particle length and density of nylon resin are quite different from those of long-fiber polyolefin composite resin masterbatch, and the blending material is not evenly fed during injection molding, and it is difficult to ensure the uniformity of fiber dispersion in injection molded parts. And the weight stability of the parts, thus affecting the customer's use

Method used

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  • A kind of nylon 6/polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Take each raw material according to the following ratios,

[0045] PA6 raw material 500 parts,

[0046] PP raw material 100 parts,

[0047] Continuous long fiber reinforcing agent 350 parts,

[0048] 50 parts of compatibilizer,

[0049] Antioxidant 12 parts,

[0050] Lubricant 5 parts.

[0051] PA6 raw material, its melt index is 10-20g / 10min (230℃, 2.16Kg);

[0052] PP is homopolypropylene with a melt index of 10-40g / 10min (230°C, 2.16Kg);

[0053] The continuous long fiber reinforcement is continuous non-alkali glass fiber with a fiber diameter of 27 μm;

[0054] The compatibilizer is PP-g (maleic anhydride grafted polypropylene resin), wherein the grafting rate of maleic anhydride is 0.5-1.5%;

[0055] Antioxidant is antioxidant 1098 (3,5-di-tert-butyl-4 hydroxyphenylpropionyl-hexamethylenediamine), and antioxidant 168 (tri-(2,4-di-tert-butylphenol phosphite) )), the weight ratio of the two is 1:2;

[0056] The lubricant is ethylene-acrylic acid copolymer;...

Embodiment 2

[0064] (1) Take each raw material according to the following ratios;

[0065] PA6 raw material 530 parts,

[0066] PP raw material 70 parts,

[0067] Continuous long fiber reinforcing agent 350 parts,

[0068] 50 parts of compatibilizer,

[0069] Antioxidant 12 parts,

[0070] Lubricant 5 parts.

[0071] Among them, the melt index of PA6 is 10-20g / 10min (230°C, 2.16Kg);

[0072] PP is homopolypropylene with a melt index of 10-40g / 10min (230°C, 2.16Kg);

[0073] The continuous long fiber reinforcement is continuous non-alkali glass fiber with a fiber diameter of 27 μm;

[0074] The compatibilizer is PP-g (maleic anhydride grafted polypropylene resin), wherein the grafting rate of maleic anhydride is 0.5-1.5%;

[0075] Antioxidant is antioxidant 1098 (3,5-di-tert-butyl-4 hydroxyphenylpropionyl-hexamethylenediamine), and antioxidant 168 (tri-(2,4-di-tert-butylphenol phosphite) )), the weight ratio of the two is 1:2;

[0076] The lubricant is ethylene-acrylic acid copolym...

Embodiment 3

[0086] (1) Take each raw material according to the following ratios;

[0087] PA6 raw material 550 parts,

[0088] 50 parts of PP raw material,

[0089] Continuous long fiber reinforcing agent 350 parts,

[0090] 50 parts of compatibilizer,

[0091] Antioxidant 12 parts,

[0092] Lubricant 5 parts.

[0093] PA6 raw material, its melt index is 10-20g / 10min (230℃, 2.16Kg);

[0094] PP is homopolypropylene with a melt index of 10-40g / 10min (230°C, 2.16Kg);

[0095] The continuous long fiber reinforcement is continuous non-alkali glass fiber with a fiber diameter of 27 μm;

[0096] The compatibilizer is PP-g (maleic anhydride grafted polypropylene resin), wherein the grafting rate of maleic anhydride is 0.5-1.5%;

[0097] Antioxidant is antioxidant 1098 (3,5-di-tert-butyl-4 hydroxyphenylpropionyl-hexamethylenediamine), and antioxidant 168 (tri-(2,4-di-tert-butylphenol phosphite) )), the weight ratio of the two is 1:2;

[0098] The lubricant is ethylene-acrylic acid copoly...

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Abstract

The invention falls into the technical field of polymer material, and relates to nylon 6 / polypropylene composite material and a preparation method thereof. The composite material comprises (by weight parts) nylon 6 500-600, polypropylene 50-100, continuous filament reinforcement 300-400, a compatilizer 40-50, an antioxidant 10-20 and a lubricant 2-6. Compared with prior art, the inventive product ensures the effective length of glass fibers, and as a result, the rigidity and the strength of the material are improved greatly, and the hydrolysis resistance and the heat resistance of the material are improved remarkably at the same time, with the fibers of the material being dispersed uniformly and the weight of the product being stable. In addition, the inventive material can be injection-molded directly with high production efficiency, and the product can be recycled by crushing after the product is used.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a nylon 6 / polypropylene composite material and a preparation method thereof. Background technique [0002] Nylon 6 (PA6) engineering plastics have good comprehensive properties and are widely used in the fields of automobiles, electronic appliances, machinery, railways, weapons and construction, but the decline in mechanical properties due to water absorption limits its wider application. Polypropylene (PP) has good mechanical properties, excellent oil resistance and chemical resistance, easy processing, low water absorption, low price, and has good complementarity with PA6. Blending PA6 and PP can reduce the water absorption of PA6 materials, which has great impact on mechanical properties. The impact on performance and heat resistance is relatively small, and the cost can also be reduced. [0003] Continuous long fiber reinforced thermoplastic resin is a reinforced the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L23/12C08L23/14C08K13/04C08K7/14C08K7/06B29C47/92B29C48/92
CPCB29C48/40B29C48/92B29C2948/92704B29C2948/92895B29C2948/92904
Inventor 蒋超杰
Owner HEFEI GENIUS NEW MATERIALS
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