High-performance nylon composite material and preparation method thereof

Abstract

The invention provides a high-performance nylon composite material. The nylon composite material is characterized in that the nylon composite material comprises the following components, by mass, 55-70% of a nylon, 25-35% of an alkali-free glass fiber, 0.3-2% of a glass fiber exposure resisting adjustment agent, and 5-10% of a modifying agent which is a montmorillonite nanocomposite material and comprises 5-15% of EPDM, wherein the nylon is a mixture of nylon 66 and nylon 6, and the weight ratio of the nylon 66 to the nylon 6 is 2-6:1; and the glass fiber exposure resisting adjustment agent is a mixture of silicone and ethylene bis-stearamide with the ratio of silicone to ethylene bis-stearamide being 1-2:1. Physical and chemical performances of the nylon composite material prepared according to the invention are improved to different degrees.

Description

technical field [0001] The invention relates to a high-performance nylon composite material and a preparation method thereof, in particular to an alcoholysis-resistant and high-temperature-resistant nylon composite material and a preparation method thereof. Background technique [0002] Nylon, Chinese name polyamide, English name Polyamide (referred to as PA), is a general term for thermoplastic resins containing repeating amide groups - [NHCO] - on the main chain of the molecule. Its name is determined by the specific number of carbon atoms of the synthetic monomer, such as: nylon-6, 66. Among them, nylon 6 and nylon 66 have excellent comprehensive properties, including mechanical strength, stiffness, toughness, mechanical shock absorption and wear resistance. Therefore, nylon 6 and nylon 66 are widely used in automobiles, machinery industry, electronic appliances, precision instruments and other fields. In terms of use, nylon 66 consumed by the automotive industry ranks ...

AI Technical Summary

Problems solved by technology

Through the application of various modifiers, the performance of nylon 6 and nylon 66 can be partially improved, but if adding an ethylene glycol-resistant improver to nylon, maleic acid grafted polypropylene will lead to the heat resistance and performance of nylon 6 and nylon 66. The thermo-oxygen stability decreases, simply adding glass fiber can improve the mechanical properties of nylon 6 and nylon 66, but there will be exposed fibers, which will affect the smoothness and other problems

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