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Copolymeric High Temperature Nylon

Updated: 2026-07-22

Overview

High-temperature copolyamide nylon is an advanced engineering plastic developed through copolymerization technology to enhance thermal stability beyond standard nylons. This material bridges the gap between conventional polyamides and more expensive high-performance polymers, offering an optimal balance of properties and cost-effectiveness. The copolymer structure allows for tailored properties to meet specific application requirements. Manufacturers can adjust the monomer ratios to achieve desired characteristics such as higher continuous use temperatures (up to 180°C), improved chemical resistance, or enhanced dimensional stability.

Physical and Chemical Properties

This specialty nylon exhibits outstanding heat deflection temperatures (HDT) ranging from 150°C to 180°C at 1.82 MPa, significantly higher than standard PA6 or PA66. The material maintains excellent mechanical properties at elevated temperatures, with tensile strength typically between 70-85 MPa and flexural modulus of 2,300-3,000 MPa. Chemical resistance is another notable feature, with good performance against automotive fluids, weak acids, and alkalis. The low moisture absorption rate (approximately 2.5% at saturation) contributes to superior dimensional stability compared to conventional nylons, making it suitable for precision components.

Main Applications

In the automotive sector, high-temperature copolyamide nylon is extensively used for under-the-hood components such as turbocharger air ducts, charge air cooler end caps, and engine management system housings. These applications benefit from the material's ability to withstand long-term heat exposure and aggressive chemical environments. The electronics industry utilizes this material for connectors, sockets, and circuit breakers where high temperature resistance and good electrical insulation properties are required. Industrial applications include gears, bearings, and pump components that demand both mechanical strength and thermal stability.

Safety and Storage

While generally safe in solid form, processing high-temperature copolyamide nylon requires precautions due to the high melting temperatures involved. Adequate ventilation should be maintained during injection molding or extrusion to prevent inhalation of potential decomposition products. Proper storage is essential to maintain material quality. The pellets should be kept in moisture-proof packaging until use and stored in conditions below 30°C with relative humidity under 50%. For critical applications, drying before processing (typically 4-6 hours at 80-100°C) is recommended to prevent surface defects in molded parts.

B2B Procurement Guide

When sourcing high-temperature copolyamide nylon, buyers should clearly specify their technical requirements including minimum heat deflection temperature, mechanical property targets, and any necessary certifications (e.g., UL, FDA, or automotive standards). Technical datasheets from suppliers should be carefully reviewed for test methods and conditions as properties can vary significantly depending on testing standards. For large-volume procurement, consider requesting material samples for your own testing before committing to bulk orders. Evaluate suppliers based on their technical support capabilities, consistency in material quality, and ability to provide customized formulations if needed. For reference, bulk prices typically range between $8-15 per kilogram depending on grade and order quantity.

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