Shanghai Daoqin Plastics Co., Ltd.

         plastics advantages

         easy processing, easy manufacturing （ easy molding ）

        即 make products 几何形状 versus complex, need can from mold in demolding, comparison easy made as. its efficiency 远胜于 metal processing, especially is injection molding products, 经 一道工序, can manufacturing very complex formed product.

         can according to need color, or made formed transparent products

         utilizing plastics can made as light color, transparent products, can color features, can improve/increase its product value, to types fast 感觉.

         can made light high strength product

         and metal, products versus ratio, quality light, mechanical properties good, ratio strong/high degree (strong/high degree and density ratio value) high, can made light high strength products. especially is filling glass fiber rear, more can improve/increase its strong/high degree.

         another, due to plastics quality light, can can 源, its products day light amount 化.

        不生锈, easy 腐蚀

         plastics generally resistant various chemical product 腐蚀, 不会象 metal that easy or to 腐蚀. use 时不必担心 acid, alkali, salt, type, product, wet and and other 侵蚀.

        不 easy hot, temperature property can good

         due to plastics ratio hot large, hot rate small, easy hot, its temperature and thermal insulation 效果良 good.

        既 can made conductive parts, also can made as insulation product

         plastics is very good insulation material 质, currently can has types electrical products use plastics. if in plastics in filling metal powder or add molding, can made formed conductive good product.

         decrease 震, property can excellent 良, light property good

         plastics tool has excellent decrease 震, property can; transparent plastics (如:PMMA, PS, PC and other) can made as transparent plastics products (如:镜 sheet/slice, 标牌, sheet/plate and other).

         product manufacturing cost low

         plastics raw materials although that 么便宜, due to plastics easy processing, equipment use comparison low 廉, therefore can reduce product cost.

         plastics disadvantages

         heat resistant property 差, easy 于燃烧

         this is plastics most large disadvantages, and metal and products versus ratio, its heat resistant property is low poor, temperature degree high, deformation, but also easy 于燃烧. 燃烧时 more plastics can generate a large amount of hot, and has gas 体;即 make is hot solid property resin, ultra- 200摄氏 degree 也会冒烟, generate 剥落.

        随 temperature degree 变化, property 质也会 large large 改变

         high temperature 自不待言, make to low temperature, various property 质也会 large large 改变.

         machine strong/high degree relatively low

         and 同样体积 metal versus ratio, machine strong/high degree low more, especially is thin type products, this type of 差别尤 is obvious.

         easy 于受特殊 solvent agent and product 腐蚀

         generally 说, plastics comparison easy chemical product 腐蚀, has plastics (如:PC, ABS, PS and other) this property especially 差; in generally lower hot solid property resin corrosion resistant property versus strong/high.

         resistant property 差, easy aging

        无论 is strong/high degree, surface gloss or transparent degree, resistant 久, negative has creep phenomenon. another, has plastics 均怕紫 outer and cationic light 照射, in light, oxygen, hot, water and large gas ring function lower aging.

         easy loss 伤, easy 沾染灰尘 and material

         plastics surface hardness comparison low, easy loss 伤; another, due to is insulation 体, belt/tape has electrical, therefore easy 沾染灰尘.

         dimensional stability 差

         and metal versus ratio, plastics shrinkage rate very high, difficult ensure dimensions degree. in use 期间受潮, wet or temperature degree 发生变化时, dimensions easy time 发生变化.