Introduction of modified plastic
Modified plastic refers to plastic products that are processed and modified by filling, blending, reinforcing, and other methods based on general plastics and engineering plastics to improve the antistatic performance, conductivity, flame retardancy, strength, impact resistance, toughness, and other properties.
Through modification, plastics can have better performance to meet the special needs of different fields and products. For example, the antistatic performance is improved to enable it to quickly release static electricity; the high-temperature resistance of plastics is increased to enable it to work stably in high-temperature environments; the strength and hardness of plastics are improved to enable them to withstand greater pressure and load; the chemical corrosion resistance of plastics is improved to enable it to be used in harsh chemical environments, etc.
Modified plastics are widely used in many industries such as semiconductors, automobiles, electronics, electrical appliances, construction, aerospace, etc., and have become one of the fastest-growing areas in the plastics industry.
Main modification methods of commonly modified plastics
- Reducing resistivity: By adding carbon black, carbon nanotubes, antistatic agents, metal fibers, etc., the surface of the material is reduced to 10^3-10^6 or 10^6-10^9, thereby forming modified plastics with antistatic or conductive functions;
- Reinforcement: By adding fibrous or flaky fillers such as glass fiber, carbon fiber, mica powder, etc., the rigidity and strength of the material can be increased, such as glass fiber reinforced nylon/glass fiber reinforced PC used in power tools, glass fiber reinforced AS and glass fiber reinforced PS for axial flow/cross flow fans, glass fiber reinforced PP for automotive parts, etc.;
- Toughening: By adding other substances such as rubber and thermoplastic elastomers to plastics, the toughness/impact strength can be improved. Common modified plastics are toughened polypropylene, etc., which are used in automobiles, home appliances and industry;
- Blending: Two or more incompatible polymer materials are uniformly mixed into a macro-compatible, micro-phased mixture to meet certain requirements for physical and mechanical properties, optical properties, processing properties, etc., such as PC/ABS alloy, or modified PS, PPO, etc.;
- Alloy: Similar to blending, but the compatibility between components is good, it is easy to form a homogeneous system, and certain properties that cannot be achieved by a single component can be obtained, such as PC/ABS alloy, or PS modified PPO and other modified plastics;
- Filling: The purpose of improving physical and mechanical properties or reducing costs is achieved by adding fillers to plastics, such as mineral-filled PP used in daily necessities, small appliance housings, car interiors, and car bumpers;
- Other modifications: adding antioxidants/light stabilizers to improve the weather resistance of materials; adding pigments/dyes to change the color of materials; adding internal/external lubricants to improve the processing performance of materials; using nucleating agents to change the crystallization characteristics of semi-crystalline plastics to improve their mechanical and optical properties, etc.; using chemical reactions to modify plastics: methods to obtain specific properties, such as maleic anhydride grafting polyolefins, cross-linking polyethylene, and using peroxides in the textile industry to degrade resins to improve fluidity/fiber-forming properties.
About INCHR
Dongguan City INCHR New Material Co., Ltd. (INCHR) is a manufacturer specializing in antistatic modified plastics. It has strong technical force and owns multiple independent research and development patents. Its products cover international markets such as the United States, Malaysia, Singapore, and the domestic market in China. It mainly produces PA, ABS, PP, PE, PC, PVA antistatic modified plastics, etc., with a surface resistance value of 10E2-10E11 Ω. Its products are widely used in office equipment, automobiles, smart communications, and semiconductor packaging.
