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A low-emission, high heat-resistant polyamide composite material and its preparation method

A composite material and polyamide technology, which is applied in the field of high heat-resistant polyamide composite material and its preparation, and low emission, can solve the problems of long-term heat resistance and organic volatility without considering the material, and achieve low haze and low Odor, effect of improving heat resistance stability

Active Publication Date: 2018-12-28
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, patents CN10110473, CN102108205, and CN105038211 do not take into account the long-term heat resistance and organic volatility of materials under high temperature conditions.

Method used

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  • A low-emission, high heat-resistant polyamide composite material and its preparation method
  • A low-emission, high heat-resistant polyamide composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Put 92.7kg of polyamide, 0.3kg of copper salt composite heat stabilizer and 2kg of clay into a high-speed mixer with a rotation speed of about 1000rpm and mix for 3-5 minutes, then feed through the main feeder of the twin-screw extruder, talc powder 5kg is fed through the side feeder of the twin-screw extruder, and extruded and granulated by twin-screw with two vacuum devolatilization devices. The extrusion temperature is 250°C, the vacuum degree is 0.08MPa-0.1MPa, and the main engine speed of the twin-screw extruder is 400 rpm.

[0050] The model and manufacturer of raw materials are shown in the table below:

[0051] raw material

Embodiment 2

[0053] Put 64.2kg of polyamide, 0.8kg of copper salt composite heat stabilizer, 2kg of clay and 3kg of molecular sieve into a high-speed mixer with a rotation speed of about 1000rpm and mix for 3-5 minutes, then feed through the main feeder of the twin-screw extruder , and then feed 30kg of glass microspheres through the side feeder of the twin-screw extruder, and extrude and granulate through the twin-screws equipped with two vacuum devolatilization devices. The extrusion temperature is 270°C, the vacuum degree is 0.08MPa-0.1MPa, and the main engine speed of the twin-screw extruder is 400 rpm.

[0054] The model and manufacturer of raw materials are shown in the table below:

[0055] raw material

Embodiment 3

[0057]Put 69kg of semi-aromatic polyamide, 0.5kg of copper salt composite thermal stabilizer and 0.5kg of molecular sieve into a high-speed mixer with a rotation speed of about 1000rpm and mix for 3-5 minutes, then feed through the main feeder of the twin-screw extruder , and then feed 30kg of glass fiber through the side feeder of the twin-screw extruder, and then extrude and granulate through the twin-screw with two vacuum devolatilization devices. The extrusion temperature is 310°C, the vacuum degree is 0.08MPa-0.1MPa, and the main engine speed of the twin-screw extruder is 400 rpm.

[0058] The model and manufacturer of raw materials are shown in the table below:

[0059] raw material

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PUM

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Abstract

The invention discloses a low-emission high-heat-resistant polyamide composite material. The low-emission high-heat-resistant polyamide composite material is prepared from, by weight, polyamide resin 44.2-94.3%, an inorganic filler 5-50%, an adsorbent 0.5-5% and a heat stabilizer 0.1-0.8%, wherein the polyamide resin is at least one of aliphatic polyamide resin and semi-aromatic polyamide resin, the adsorbent is at least one of clay and a molecular sieve, and the heat stabilizer is a copper salt composite heat stabilizer. Compared with the prior art, the polyamide composite material has the advantages of being high in heat resistance, low in haze degree and low in odor.

Description

technical field [0001] The invention relates to the field of polymer processing, in particular to a low emission, high heat-resistant polyamide composite material and a preparation method thereof. Background technique [0002] Polyamide has many varieties and is widely used, and its output ranks first among the five major engineering plastics (polyamide, polycarbonate, polyoxymethylene, modified polyphenylene ether, and thermoplastic polyester). It has excellent mechanical properties, high strength, high rigidity, and good toughness; it has self-lubrication and good friction resistance; it has a wide temperature range, good electrical insulation performance, high volume resistivity and breakdown voltage, oil resistance and chemical resistance. Good stability and other characteristics, widely used in many fields such as automobiles, machinery, chemicals, electronic appliances, machinery, etc. [0003] In the automotive field, as the public's awareness of environmental protec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/04C08K7/20C08K7/26C08K7/14C08K3/34C08K3/16
CPCC08K3/01C08K3/16C08K3/34C08K3/346C08K7/14C08K7/20C08K7/26C08K13/04C08K2201/014C08L77/02C08L77/06C08L2201/08C08L2205/025
Inventor 肖军华
Owner SHANGHAI KINGFA SCI & TECH
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