Shanghai Daoqin Plastics Co., Ltd.

         plastics formed

        1. resin (plastics main/primary formed separation)

         function:

        1)联系 or viscous plastics in other 一切组 formed separation;

        2)决定 plastics type type and property can.

        2. additives: use improvement plastics raw materials certain property can additives.

         function: improvement process property can: processing conditions, improve/increase production efficiency; improve/increase use property can: improvement products property can, long lifespan.

        3. filling agent

         function: large large reduce plastics cost; significantly improvement plastics property can. 如: aldehyde resin in add 入苯酚, 克服 脆 property, cost reduce;PE, PVC in add 入钙, high rigidity heat resistant property, cost reduce; polyamide (PA), polyoxymethylene (POM) in add 入MoS2, 石墨, PTFE, make wear resistant heat resistant, resistant water, hardness improve/increase; plastics in add glass fiber, machine strong/high degree large large improve/increase.

         type type: chemical property can: machine filler, has machine filler 按形状: powder 状, 层状, fiber and other powder 状: powder, silicon 藻土, slip powder, powder, powder, high 岭土, 石墨, metal powder;层 sheet/slice 状: 纸张, 棉布, 石棉布, 玻璃布, sheet/slice; fiber 状: 棉花, 亚麻, filament, filament, carbon fiber, metal must

        4. increase agent

         concept: can and resin versus solvent easy high has machine combined material.

         function: 1) reduce resin melt viscosity and temperature degree, improvement flow property;2)改进 plastics soft/flexible property, improve/increase elongation, impact property and resistant property. principle: add large resin separation 子间距, 因而削 low large separation function force, make resin separation easy slip 移, from make plastics in relatively low temperature degree lower tool has good can property and soft/flexible property. commonly used: 邻苯二甲 acid ester, chlorine wax.

        5. stabilizer

         concept: can improve/increase resin in hot, light, oxygen and and other factors function stability property, retardant plastics additives.

         type type: heat stabilized agent

        抑 made molding process in can can thermal degradation reaction;延缓 products in use in hot, light, oxygen degradation.

         light stabilizer

         anti in cationic light, light, high can lower degradation and property can bad.

         antioxidant 　预 anti and made high temperature oxidation, light oxidation hydrogen and other.

         requirements: stability good; resistant water, 油, chemical product, and resin versus solvent; molding process in separation understanding, small, color.

         commonly used: hard acid salt (zinc), 铅 化 combined material and other.

        6. lubricant

         function: flow property, decrease/reduce or for equipment, mold scratch and viscous 附.

         commonly used: hard acid and its salt type.

        7. color agent

         type type: has machine material, machine material, material.

         requirements: property stability, easy color, color force strong/high; and resin has good versus solvent property, and other formed separation chemical reaction.

        8. solid agent (hard agent), crosslinked agent

        如: aldehyde resin add 入六亚甲基四 amine, ring oxygen resin add 入乙二 amine and other.

         another, also has foaming agent, flame retardant, anti-static agent, conductive agent, magnetic agent.

         plastics classification

        一)按受 hot is separation

        1. thermoplastic property plastics

         features: 1〉 large separation comparison easy active 动, hot separation can versus 互移动;2〉 tool has relatively good can property and can property. 3〉 solid rear can again add hot, cooling 而反复 tool has flow property and solid property.

         Common product types: polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyamide (PA), acrylonitrile-butadiene-styrene (ABS), PE, PP, PS, PVC, PA, ABS, polymethyl methacrylate (PMMA), PTFE, polyoxymethylene (POM), polycarbonate (PC), poly PMMA, PTFE, POM, PC, PSF

        2. hot solid property plastics

         features:

        1〉 add hot separation 子呈线 type structure, tool has can property and can property, can made formed 一定形状 plastics parts.

        2〉继续 add hot 时发生 crosslinked, separation 子呈网状 structure, solid rear, can property, can property 消失.

        3〉 cooling rear method again add hot soft or melt, high temperature lower can by carbon 化.

         Common product types: aldehyde plastics, plastics, ring oxygen plastics, saturated and polyester, PF EP UP silicon plastics.

        二)按 solid polymer large separation type separation

        1. crystallization type plastics

        PE, PP, PA, POM, aldehyde 2. type PS, PVC, PMMA, PC

        三)按 application scope separation

        1. general purpose plastics: output/production volume large, applications 广, price low, property can generally. output/production volume amount large semi above. 包括6 large product types: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), aldehyde, plastics, PE, PP PVC PS tool has relatively high strong/high degree, very good wear resistance, corrosion resistant property, lubricated property and dimensional stability, tool has certain metal property can, can substitute/replace metal as certain machine parts. commonly used: polyamide (PA), polyoxymethylene (POM), polycarbonate (PC), ABS, poly 矾, polyphenylene oxide (PPO), poly chlorine ethylene, PA, POM, PC, ABS, PSF, PPO, PTFE 3. plastics: tool has certain property can plastics. high heat resistant property or high electrical insulation property and corrosion resistant property. 如: fluorine plastics: PTFE. decrease lubricated parts, high temperature lower or 腐蚀介质 in various lubricated active ring, low speed scratch bearings and other.