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A kind of high-performance anti-warpage nylon material and preparation method thereof

An anti-warping, high-performance technology, applied in the field of polymer materials, can solve the problems of low strength, large internal stress, inconsistent shrinkage, etc., and achieve the effect of good heat resistance and high mechanical strength

Active Publication Date: 2011-12-14
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of the electronic and electrical industry in China, the demand for enhanced engineering plastics with dimensional stability is increasing, and engineering plastics with good comprehensive mechanical properties, warpage resistance, and good dimensional stability are required, and polyamide materials are used among them. A single glass fiber reinforced polyamide has excellent comprehensive properties, but the fiber state of the glass fiber itself determines that its orientation is anisotropic, which leads to anisotropic crystallization of nylon materials during the crystallization process of injection molded products. The shrinkage is inconsistent, resulting in large internal stress, which will cause warping and deformation of the final product
[0004] At present, there are already many manufacturers producing anti-warpage nylon materials in the domestic and foreign markets, but the existing materials have disadvantages such as low strength, insufficient anti-warpage effect, insufficient gloss of the product surface, and poor material fluidity.

Method used

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  • A kind of high-performance anti-warpage nylon material and preparation method thereof
  • A kind of high-performance anti-warpage nylon material and preparation method thereof
  • A kind of high-performance anti-warpage nylon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First dry 100g of PA6 and 300g of PA66 at 90°C for 6 hours, and dry 100g of PMMA at 90°C for 4 hours, then dry the dried PA6, PA66, PMMA together with 100g of glass beads , 30g of SAG-002, 40g of KA-101, 20g of TAF-1, 5g of KH-550, 2g of 1010, and 3g of CAV102 are put into the high-speed mixer for high-speed pre-mixing for 5 minutes, and will be mixed at high speed Put the pre-mixed raw material mixture in the twin-screw extruder into the hopper of the twin-screw extruder. The screw temperature of the twin-screw extruder is controlled between 230 and 250°C, and the screw speed is 160 rpm. Feed is added, melted, kneaded, extruded, cooled, dried, pelletized and packaged together with the raw material mixture. Among them, TAF-1 is an anti-floating lubricant, KH-550 is a coupling agent, 1010 is an antioxidant, SAG-002 is a compatibilizer, KA-101 is a toughening agent, and CAV102 is a nucleating agent.

Embodiment 2

[0033] First, dry 100g of PA6 and 250g of PA66 at 90°C for 6 hours, and dry 50g of PMMA at 90°C for 4 hours, then dry the dried PA6, PA66, PMMA together with 100g of glass beads , 23g of SAG-002, 30g of KA-101, 30g of TAF-1, 8g of KH-550, 5g of 1010, and 4g of CAV102 are put into the high-speed mixer for high-speed pre-mixing for 5 minutes, and will be mixed at high speed Put the pre-mixed raw material mixture in the twin-screw extruder into the hopper of the twin-screw extruder. The screw temperature of the twin-screw extruder is controlled between 230 and 250°C, the screw speed is 140 rpm, and 300g of glass fiber is poured from the side Feed is added, melted, kneaded, extruded, cooled, dried, pelletized and packaged together with the raw material mixture. Among them, TAF-1 is an anti-floating lubricant, KH-550 is a coupling agent, 1010 is an antioxidant, SAG-002 is a compatibilizer, KA-101 is a toughening agent, and CAV102 is a nucleating agent.

Embodiment 3

[0035] First, dry 100g of PA6 and 300g of PA66 at 90°C for 6 hours, and dry 100g of ABS at 90°C for 4 hours, then dry the dried PA6, PA66, ABS together with 100g of barium sulfate, 30g of SAG-002, 40g of KA-101, 20g of TAF-1, 5g of KH-560, 2g of 168, and 3g of CAV102 are put into the high-speed mixer and pre-mixed at high speed for 5 minutes. Put the pre-mixed raw material mixture into the hopper of the twin-screw extruder. The screw temperature of the twin-screw extruder is controlled between 230 and 250°C, the screw speed is 180 rpm, and 300g of glass fiber is fed from the side The materials are added, melted, kneaded, extruded, cooled, dried, pelletized and packaged together with the raw material mixture. Among them, TAF-1 is an anti-floating lubricant, KH-560 is a coupling agent, 168 is an antioxidant, SAG-002 is a compatibilizer, KA-101 is a toughening agent, and CAV102 is a nucleating agent.

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Abstract

The invention relates to the technical field of high polymer materials and in particular relates to a high-performance anti-warping nylon material and a preparation method thereof. The preparation method comprises the following steps: blasting and drying nylon resin for 6-8 hours at the temperature of 90 DEG C; drying a non-crystalline material at the temperature of 90 DEG C; then, putting a mineral matter filler together with the dried nylon resin and the non-crystalline material, a bulking agent, a flexibilizer, a floating fiber resistant lubricating agent, a coupling agent, an antioxidant and a nucleating agent raw material into a high-speed mixer to be pre-mixed at a high speed for 5 minutes; putting the raw material mixture pre-mixed in the high-speed mixer into a double-screw extruder hopper; adding continuous macrofiber by virtue of side feeding; and melting, blending, extruding, cooling, drying, carrying out sized dicing and packaging on the continuous macrofiber and the raw material mixture. The plastic prepared by the preparation method has excellent mechanical performances, such as high mechanical strength, good toughness and wrapping deformation resistance and is suitable for the fields of electronic products, such as mobile phone shells, laptops and the like.

Description

Technical field: [0001] The invention relates to the technical field of polymer materials, in particular to a high-performance warpage-resistant nylon material and a preparation method thereof. Background technique: [0002] Nylon resin has good mechanical properties, wear resistance, self-lubrication, corrosion resistance, gas barrier properties, electrical insulation and molding properties, so it is widely used in machinery, automobiles, electronics, textiles, chemicals, aviation , metallurgy and other fields. [0003] With the development of the electronic and electrical industry in China, the demand for enhanced engineering plastics with dimensional stability is increasing. It needs engineering plastics with good comprehensive mechanical properties, warping resistance, and good dimensional stability. Among them, polyamide materials A single glass fiber reinforced polyamide has excellent comprehensive properties, but the fiber state of the glass fiber itself determines t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/06C08L77/02C08L33/12C08L55/02C08L69/00C08K13/04C08K7/14C08K7/06C08K7/20C08K3/30C08K3/26C08K3/34B29C47/92B29C48/92
Inventor 韩丽燕王长明
Owner GUANGDONG JANUS SMART GRP CO LTD
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