Modification Index of Recycled Nylon
The primary objective of recycled nylon modification is similar to that of virgin material, but with greater urgency and complexity. It can be summarized as "filling gaps and turning waste into treasure." Due to thermal and mechanical degradation during recycling, recycled nylon inherently suffers from performance deficiencies, limiting its direct applications. Modification is essential to elevate its properties to meet specific application requirements.
Performance Recovery Compensate for the loss of mechanical properties (e.g. strength, toughness) due to degradation
Property stabilization Mitigating performance fluctuations caused by complex sources and batch inconsistencies
Value Enhancement Upgrade to higher-value applications by endowing with specialized functionalities
Processability Improve the rheological properties altered by degradation to enhance processability for molding applications
Why modify?
Although nylon (polyamide) itself exhibits excellent properties, its inherent limitations restrict its application in broader fields. Therefore, 'modification' is a critical step in nylon processing. Fundamentally, the primary reason for modifying nylon is to compensate for its inherent deficiencies or endow it with new specialized functionalities by artificially adding other substances or employing chemical methods, thereby meeting the stringent material performance requirements of specific products.
Enhance Physical Properties
Enhance the mechanical strength and heat resistance of plastics by incorporating reinforcing materials, such as glass fibers.
Improve the processing performance of recycled nylon
Enhance the mechanical strength and heat resistance of plastics by incorporating reinforcing materials, such as glass fibers.
Enhance the surface appearance
Improve the color and gloss of plastics using pigments and colorants to meet aesthetic and market requirements
Enhance the environmental characteristics
Incorporating recycled materials or biodegradable components into nylon modifications to reduce environmental impact and align with green development trends.
Performance comparison between recycled and virgin nylon materials
Virgin materials:Superior performance, stable quality, used for high-end products with strict requirements on appearance and strength.
Recycled materials:Lower cost, more environmentally friendly, used for internal components or low-end products with less demanding performance and appearance requirements.
Characteristics Nylon raw material Polyamide recycled material
Mechanical properties High strength and good toughness The strength and resilience have declined.
Appearance Pure and uniform in color The color is yellowish and may contain impurities.
Stability High, with good batch consistency Lower, with differences between batches
Processability Easy to process and with stable parameters The fluidity may change, so the process needs to be adjusted.
Price Higher Lower, with cost advantages
Environmental friendliness Consumption of petroleum resources Reduce resource consumption and be more environmentally friendly.
Application scenario
Application Enterprises and Core Requirements of PA Recycled Materials
Application enterprise type Common types of recycled PA (polyamide) Typical product examples Core demand motivation
Plastic modification enterprises Various recycled PA base materials Reclaimed particles after modification for reinforcement, toughness improvement and flame retardancy Reclaimed particles after modification for reinforcement, toughness improvement and flame retardancy
Automobile and component enterprises Recycled PA6, PA6 Intake manifold, connector, fan, wheel cover Reduce costs, comply with environmental regulations, and achieve performance balance.
Electrical and electronic enterprises Flame-retardant recycled PA6, PA6 Breaker, connector, electric tool housing Flame retardant performance, green brand image, cost control
Sporting, casual wear and consumer goods enterprises Reclaimed PA11, PA12 Ski boots, backpack buckles, comb handles Combining high performance with environmental protection, achieving brand differentiation
Industrial and packaging enterprises Recycled PA6 Gears, bearings, bottle caps, brush wires Cost-driven, functional requirements (wear resistance)
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