Harsh Working Conditions Require High Performance Modified Plastics
Plastic components around automotive engines operate under extremely harsh conditions. They need stable high-speed operation within a temperature range of -40℃ to 80℃. Such demanding environments require modified plastics with high impact strength, high rigidity, excellent low and high temperature resistance, and outstanding oxidation aging resistance.
With more than 30 years of experience and technological innovation, Qingdao Zhongxinhuamei has successfully developed mature glass fiber reinforced high temperature nylon materialsperfectly tailored for engine peripheral applications.
High Temperature Nylon PPA Becomes the Preferred Engine Material
Glass fiber reinforced high-temperature nylon composite material based on PPA matrix is easy to manufacture high precision, high temperature and high strength parts. As aging and environmental requirements become stricter for modern automobiles, high-temperature nylon has gradually become the best choice for engine peripheral components.
Superior Mechanical Strength
High-temperature nylon shows obvious advantages over traditional aliphatic nylon such as PA6 and PA66 in mechanical properties and heat resistance.
Under the same glass fiber content, its mechanical strength is about 20% higher than ordinary nylon, supporting lightweight vehicle design.For example, PPA 30%GF can reach tensile strength up to 230MPa, while traditional PA66 30%GF only reaches 190MPa.
Excellent Thermal Aging Performance
Under 1.82MPa thermal deformation test condition, 30% glass fiber reinforced high-temperature nylon reaches 280℃, compared with only 255℃ for conventional PA66 GF30.
Traditional aliphatic nylon struggles to maintain stability above 200℃. Engine peripheral parts face long-term high temperature, high humidity and oil corrosion. Thanks to its special benzene ring molecular structure, high-temperature nylon maintains stable performance under continuous extreme heat exposure.
Outstanding Dimensional Stability
Traditional aliphatic nylon contains high amide groups, leading to high water absorption up to 5%, which seriously reduces dimensional stability and makes it unsuitable for high-precision parts.
High-temperature nylon reduces amide content, cutting water absorption to nearly half of ordinary nylon. This greatly improves dimensional stability, ensuring high-precision engine parts remain stable in changing temperature and humidity.
Excellent Chemical Resistance
Engine peripheral components frequently contact gasoline, coolant and other chemical agents. These substances cause obvious corrosion to ordinary aliphatic polyamide.
The special molecular structure of high-temperature nylon effectively resists chemical erosion, making it ideal for fuel systems, cooling systems and exhaust system plastic parts. It upgrades the overall environmental adaptability of automobile engines.
Comprehensive Advantages and Wide Application Range
With the trend of metal replacement in fuel, exhaust and cooling systems, traditional general engineering plastics can no longer meet strict requirements for heat resistance, durability and chemical resistance.
High-temperature nylon retains classic plastic benefits:
Easy processing and trimming
Free design for complex integrated components
Light weight and noise reduction
Strong corrosion resistance
It is widely used in engine covers, switches, connectors, bearing cages, exhaust control systems and air intake devices.
Professional Modified Plastic Customization from Qingdao Zhongxinhuamei
Qingdao Zhongxinhuamei provides customized coloring and modification for a full range of engineering plastics:ABS, PS, PMMA, AS, PC, PC/ABS, PP and other colored pellets.
We also supply filled, flame retardant and reinforced modified grades for ABS, PP, PC/ABS and PA. Our dedicated automotive grade materials cover door panels, bumpers, instrument panels, engine covers and automotive lamp special materials, providing one-stop reliable material solutions for the automotive industry.
