What is the material of the threading tube And PVC the same?
Polycarbonate, English name Polycarbonate, referred to as PC. PC is a kind of amorphous, odorless, non-toxic, highly transparent colorless or slightly yellow thermoplastic engineering plastics, with excellent physical and mechanical properties, especially excellent impact resistance, tensile strength, bending strength, high compressive strength; Low stability, good dimensional stability, good heat resistance and low temperature resistance, in a wide temperature range with a stable mechanical properties, dimensional stability, electrical properties and flame retardant, can be in -60 ~ 120 ℃ The viscosity of the resin is small, the shrinkage rate is small, the dimensional precision is high, the dimensional stability is good, the film permeability is small, the viscosity of the film is small, Oil, stable, but not resistant to ultraviolet light, good weather resistance; oil, acid, intolerant alkali, oxidizing acid and amine, ketones, soluble in chlorinated hydrocarbons and aromatic solvents, Long-term in the water easily lead to hydrolysis and cracking, the disadvantage is due to poor fatigue strength, prone to stress cracking, solvent resistance is poor, poor wear resistance. And PVC is not the same.
PVC is PVC, the most commonly used, cheap. PC is polycarbonate, expensive, high strength, with a long time. . PVC resin plastic products highlight the advantages of flame resistance, wear resistance, chemical resistance, gas, low moisture permeability of water vapor. In addition, comprehensive mechanical properties, product transparency, electrical insulation, insulation, muffler, shock resistance Ye Hao, is the most cost-effective general-purpose materials. Defects are poor thermal stability and impact resistance, whether it is hard or soft PVC process prone to brittle. . PC (polycarbonate) resin is a good performance of thermoplastic engineering plastics, with outstanding impact resistance, creep resistance and dimensional stability, heat resistance, low water absorption, non-toxic, excellent dielectric properties, Is the only five engineering plastics with the only good transparency of the product, but also in recent years, the fastest growing general engineering plastics.
Different. Polycarbonate is a common material. Because of its colorless transparency and excellent impact resistance, daily common applications are CDs, glasses, water bottles, bulletproof glass, goggles, bank anti-bullet glass, headlights, etc., animal cage pet cage and so on. Polycarbonate PC is also a kind of material used in the notebook computer shell, its raw material is oil, after the polyester chip processing plant has become a polyester chip particles, and then processed by the plastic factory has become a finished product, from a practical point of view , Its thermal performance than ABS plastic is better, more uniform dispersion of heat. The use of this material is more significant is FUJITSU, and in many models are used in this material, but also the whole shell are using this material. Whether from the surface or from the touch of feeling, PC-GF material feels like metal. If the laptop does not identify the words, just look from the outside surface is not careful to observe, may think it is alloy. Polycarbonate is also used to make moonlight astronauts helmets. Apple's iPod music player and ibook laptop shell are also made using polycarbonate. Because of its clarity and toughness, producers and purchasers of food stores like polycarbonate fibers. When compared with silica glass, polycarbonate fibers are as lightweight and highly friable. Polycarbonate fiber is used for disposable plastic water bottles and heavy plastic bottles. Chemical properties of polycarbonate resistant acid, resistant to neutral oil. Polycarbonate is not resistant to ultraviolet light, intolerant alkali.
