Reinforced polyamide composition with high laser transmittance and low water absorption and its preparation method and application

A technology of polyamide composition and transmittance, which is applied in the field of polymers, can solve the problems of reducing the mechanical properties of materials, and achieve the effects of excellent mechanical properties, high precision and high efficiency

Active Publication Date: 2022-07-08
SHANGHAI KUMHO SUNNY PLASTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding polyolefin elastomers will theoretically reduce the water absorption of nylon, but it will greatly reduce the mechanical properties of the material

Method used

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  • Reinforced polyamide composition with high laser transmittance and low water absorption and its preparation method and application
  • Reinforced polyamide composition with high laser transmittance and low water absorption and its preparation method and application
  • Reinforced polyamide composition with high laser transmittance and low water absorption and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A reinforced polyamide composition with high laser transmittance and low water absorption performance and a preparation method thereof, the composition comprises the following components and steps:

[0033] (1) Prepare materials according to the following components and parts by weight:

[0034] Polyamide resin (select PA6 CM1017 from Toray Company, Japan) 59;

[0035] Styrene-methyl methacrylate copolymer (the content of methyl methacrylate is about 60%) 10;

[0036] Compatibilizer PS-g-GMA (commercially available) 1;

[0037] Glass fiber (select ECS 301HP, Chongqing glass fiber) 30;

[0038] Antioxidant (select Irganox 1098 from Ciba) 0.3;

[0039] Lubricant (select commercially available ethylene bis-stearic acid amide) 0.5;

[0040](2) Mix the above-mentioned raw materials, except glass fiber, into the high-speed mixer according to the above proportions and stir, after mixing evenly, add the twin-screw extruder through the metering device, add the glass fiber fr...

Embodiment 2

[0042] A reinforced polyamide composition with high laser transmittance and low water absorption performance and a preparation method thereof, the composition comprises the following components and steps:

[0043] (1) Prepare materials according to the following components and parts by weight:

[0044] Polyamide resin (select PA6 CM1017 from Toray Company, Japan) 54;

[0045] Styrene-methyl methacrylate copolymer (wherein the content of methyl methacrylate is about 60%) 15;

[0046] Compatibilizer PS-g-GMA (commercially available) 1;

[0047] Glass fiber (select ECS 301HP, Chongqing glass fiber) 30;

[0048] Antioxidant (select Irganox 1098 from Ciba) 0.3;

[0049] Lubricant (for use commercially available ethylene bis-stearic acid amide) 0.5;

[0050] (2) Mix the above-mentioned raw materials, except glass fiber, into the high-speed mixer according to the above proportions and stir, after mixing evenly, add the twin-screw extruder through the metering device, add the glas...

Embodiment 3

[0052] A reinforced polyamide composition with high laser transmittance and low water absorption performance and a preparation method thereof, the composition comprises the following components and steps:

[0053] (1) Prepare materials according to the following components and parts by weight:

[0054] Polyamide resin (selected PA6 CM1017 of Japan Toray Company) 49;

[0055] Styrene-methyl methacrylate copolymer (wherein the content of methyl methacrylate is about 60%) 20;

[0056] Compatibilizer PS-g-GMA (commercially available) 1;

[0057] Glass fiber (select ECS 301HP, Chongqing glass fiber) 30;

[0058] Antioxidant (select Irganox 1098 from Ciba) 0.3;

[0059] Lubricant (for use commercially available ethylene bis-stearic acid amide) 0.5;

[0060] (2) Mix the above-mentioned raw materials, except glass fiber, into the high-speed mixer according to the above proportions and stir, after mixing evenly, add the twin-screw extruder through the metering device, add the glass...

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Abstract

The invention relates to a reinforced polyamide composition with high laser transmittance and low water absorption performance, a preparation method and application thereof, comprising the following components in parts by weight: 24-90 parts of polyamide resin, styrene-methyl methacrylate 5-30 parts of copolymer, 0.5-3 parts of compatibilizer, 5-40 parts of glass fiber, 0.1-1 part of antioxidant, 0.3-2 parts of lubricant. Mix and stir the rest of the raw materials except the glass fiber according to the formula, and then feed into the main feeding port of the twin-screw extruder after mixing evenly. The temperature of the machine is 230-300°C, and the materials are uniformly mixed by shearing and plasticizing, and then granulated to obtain the desired composition. The reinforced polyamide composition is used as a material for automobile interiors, structural parts, or electronic appliances. Compared with the prior art, the composition of the present invention has lower water absorption, does not significantly reduce the mechanical properties of the material, and has higher laser transmittance.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a reinforced polyamide composition with high laser transmittance and low water absorption performance, and a preparation method and application thereof. Background technique [0002] Polyamide, commonly known as nylon, is a high-performance engineering plastic with a wide range of uses, with high strength, corrosion resistance, and good wear resistance. The polyamide molecular structure contains a large number of amide bonds, and it is easy to form hydrogen bonds with water molecules, so its water absorption is high. Although the toughness of nylon increases significantly after water absorption, the dimensions will change significantly after water absorption, and the mechanical properties will also be greatly reduced, especially the rigidity and heat resistance. The mechanical properties and heat resistance of polyamide can be greatly increased after filling with glass fiber, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L25/14C08L51/00C08K7/14C08K5/20C08J5/04
CPCC08J5/043C08J2377/02C08J2425/14C08J2451/00C08K7/14C08K5/20C08K2201/014
Inventor 李俊杰辛敏强郭东平李军宏
Owner SHANGHAI KUMHO SUNNY PLASTICS
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