There are many common plastic modification technologies, mainly reinforcement technologies, including fiber reinforcement, self-reinforcement, molecular reinforcement; toughening technology; filling modification; blending and plastic alloy technology; flame retardant technology; nanocomposite technology; reaction graft modification; aging resistance; functional modification, including electrical conductivity, antistatic, thermal conductivity and luminescence, etc.; thermoplastic elastomer technology.

Adding PE resin in the process of preparing PBT, calcium stearate can improve the processing fluidity of PBT, with the addition of anti-drip agent, a 30% GF reinforced PBT flame retardant material with excellent comprehensive properties such as flame retardant and mechanical properties can be obtained with a small amount of flame retardant added.

The long fiber has large retention length, which makes PP have better rigidity and creep resistance, higher compressive strength, higher flexural strength, better impact property and higher service temperature.

At present, LFT-PP (long fiber reinforced PP) has been widely used in automobiles, electric tools, home appliances, water treatment components.