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High-temperature-resistant polyamide composite and preparation method thereof

A technology of polyamide and compound, which is applied in the field of high temperature resistant polyamide compound and its preparation, can solve the problems of lack of compatibility, unsatisfactory heat resistance and mechanical properties of the composition, etc., and achieves improved compatibility. properties, improve mechanical properties, and improve the ability to resist deformation by external forces

Inactive Publication Date: 2017-03-15
SHANGHAI KINGFA SCI & TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the lack of sufficient compatibility between the nylon polymer and poly(1,4-cyclohexanedimethylene terephthalate), the heat resistance and mechanical properties of the composition obtained in this patent cannot obtain satisfactory results

Method used

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  • High-temperature-resistant polyamide composite and preparation method thereof
  • High-temperature-resistant polyamide composite and preparation method thereof
  • High-temperature-resistant polyamide composite and preparation method thereof

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Embodiment 1～3 and comparative example 1～4

[0032] Measure polyamide, polyester, filler, compatibilizer, antioxidant according to the formula in Table 2, dry the polyamide and polyester in the above-mentioned raw materials until the mass content of moisture is no more than 0.05%, and mix the above-mentioned polyamide, Polyester, filler, compatibilizer, antioxidant are put into twin-screw extruder after mixing and extruded, and the products of this embodiment and comparative example are obtained through cooling and granulation. Twin-screw extruder is divided into Nine districts, the temperature of each district is: the temperature of the first district is 230℃, the temperature of the second district is 280℃, the temperature of the third district is 300℃, the temperature of the fourth district is 280℃, the temperature of the fifth district is 280℃, the temperature of the sixth district is 280℃, the temperature of the seventh district is 290℃, and the temperature of the eighth district is 280℃. The temperature in the zone i...

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Abstract

The invention discloses a high-temperature-resistant polyamide composite and a preparation method thereof. The polyamide composite is characterized by comprising the following components in parts by weight: 40-70 parts of polyamide, 5-15 parts of polyester, 15-60 parts of filler, 1-10 parts of compatilizer and 0.2-1 part of antioxidant. By adopting the optimal compatilizer, the compatibility between PCT (polycaprolactam) and polyamide is greatly increased, so that the heat-deformation temperature resistance is increased. Meanwhile, the compatilizer greatly enhances the exterior force resistance of the alloy at high temperature.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-temperature-resistant polyamide compound and a preparation method thereof. Background technique [0002] Due to their excellent mechanical properties, chemical resistance, processability, and heat-oxidative aging resistance, polyamide compositions are often used in the electronics and motor vehicle industries that have strict requirements on the working environment. Among them, the peripherals of motor vehicle engines applications are particularly common. Among them, turbocharging replaces supercharging to increase the intake air volume of the engine, thereby increasing the power and torque of the engine, which is the trend of automobile development. However, the engine is required to be able to withstand the higher pressures and temperatures of turbocharged operation. This forces the heat resistance level of the materials used around the engine to be continuously upgrad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L67/02C08L55/02C08L35/06C08K7/14C08K3/34
CPCC08L77/06C08K2201/003C08L2201/08C08L2205/035C08L2205/08C08L2205/24
Inventor 林洁龙杨波丁正亚张超杨军肖军华李志路陈春华夏建盟
Owner SHANGHAI KINGFA SCI & TECH