The main uses of PPS Chemical stability, dimensional stability, flame retardancy and electrical insulation, etc. In the chemical industry can be used as PPS synthesis, transport, storage tank, pipeline, valve, reaction chemical pumps, PPS can be made in the mechanical center of impeller, blade, eccentric wheel, gear, bearing, clutch and wear parts; the main purpose of PPS is still in the field of electronics, such as the production of high-frequency transformer skeleton, coil skeleton plug, socket, wiring, frame, drum drum contactor tablets and a variety of precision parts etc.. Material properties 1, electrical insulation (especially high frequency insulation) is excellent, white hard and brittle, falling on the floor with metal noise, light transmission rate is second only to plexiglass, with * * * water resistance, chemical stability is good. It has excellent flame retardancy for non flammable plastics. 2, the strength is general, the rigidity is very good, but the quality is crisp, easy to produce the stress embrittlement, does not endure benzene, the gasoline and so on organic solvent. The long-term use temperature can reach 260 degrees, maintains the stability in the 400 degree air?or?the nitrogen. By adding glass fiber?or?other reinforced materials after modification, can greatly improve the impact strength, heat resistance and other mechanical properties are also improved, the density increased to 1.6-1.9, mold shrinkage to 0.15-0.25% suitable for the production of heat-resistant parts. Insulation and chemical equipment. Optical instrument parts etc.. Blending modification with PA1010 The blends of PA11 and PA1010 were prepared under different mass ratio, and the melting temperature, mechanical properties, rheological properties and microstructure of the blends were studied. The results show that the quality of the blends is 90: 10 when the amide exchange reaction is a single melting temperature; impact performance in a mass ratio of 90: 10 and 70: 30 when the maximum value when the mass ratio of 90: 10, PA11/PA1010, the viscosity of the blend increased suddenly (increase than pure PA11 30%) quality; the ratio of 70 to 30 when the viscosity of the blend is about 20% with pure PA11, the rheological properties of blends and stability. Considering the processing and impact properties, the mechanical properties of the blends with the mass ratio of PA11 and PA1010 to 70: 30 are better than that of pure PA11, and the cost is obviously lower than that of pure PA11. Blending with PA6, because of the strong polarity of PA6, the water absorption rate is large, and the strength and modulus decrease, and the dimensional stability is affected. PA6 has low toughness at low temperature. The blend of PA11 and PA6 makes the blends have good mechanical properties and reduce the price of PA11. Furthermore, such as the recent two years, India intercontinental recycling company has produced qualified recycling PET, according to reports, the India state-owned intercontinental recycling company Indian-ownedIntercontinentalRecycling is located in the northern England region of the Skelmersdale device began trial operation in November 2007, according to the plan, the device can recovery and transformation of 30 thousand tons per year of waste plastic bottles. In addition, the device has some equipment for sorting, washing and drying, and the products produced will be hot pot flakes for non food products. Consumers can use this material to package non food products?or?to separate two layers of edible material as intermediate. In the UK, the market price of regenerated PET bottles for non food products is about 600 pounds per ton. In addition, Japanese enterprises successfully developed recycled and regenerated PET modifier. It recalled that the container recycling method was implemented in April 2000 in Japan. In 2006, the recovery of PET bottles reached 390 thousand tons, reaching only 60% of the recovery rate. The technical problem for recycling and reuse for PET. The two brands of recycled PET modifier, "AR-P-1000" and "AR-P-1100", were successfully developed from Japan to the market. The main characteristics of AR-P recycling regenerative modifier are: (1) no drying treatment is needed. It is very stable at room temperature. It is suitable for all plastic forming and processing equipment. (4) can be coloured arbitrarily. Blends can be added directly. To enhance the impact strength of PET recycled material molding. As AR-P is dispersed in a fine state in the recovery of PET molding materials, the interfacial tension is small under the shear force of the molding process. The viscosity ratio of AR-P to recycled PET molding material is 1, and the dispersion is good, which improves the impact strength of recycled PET molding materials. For example, when adding 5% "AR-P", the notched impact strength is increased from 2KJ/mz to 5.5KJ/m2. In a 10 DEG C low-temperature impact strength increased from 1.BkJ/mz to SkJlm2o and improve the recycling of PET material viscosity, improve the flow performance of PET melt molding material, suitable for processing complex shape, profile extrusion molding products.