Shanghai Daoqin Plastics Co., Ltd.

         hardness is material resistant its it relatively hard material pressure its surface can force, hardness value large small is table/sheet material soft hard degree has conditions amount 反映, it is mono pure 而确定 material amount, that modified plastics hardness how 样? modified plastics hardness how to 改进?

         hardness value large small not only 取决于材 material 本身, but also 取决于 testing conditions and methods, different hardness amount methods, for types material hardness value same. therefore, need comparison material between hardness large small, must use types amount methods amount hardness value, has can ratio property.

        常 used for table/sheet hardness methods has lower types:

        a, Shore hardness

        b, hardness

        c, hardness

        添 add modified plastics hardness

        添 add modified plastics hardness is in plastics in add hard additives types modified methods. commonly used hardness add agent is rigid property machine filler and fiber.

         surface treatment plastics hardness

         plastics surface hardness methods is improvement plastics products outer table/sheet hardness, products internal hardness 不变. this is types low cost hardness methods.

         this type of modified methods main/primary used for housing/shell 体, decoration material, optical material and day use product and other. this type of modified methods main/primary coating, plating and surface treatment types methods.

         blending and composite/compounding plastics hardness

         blending plastics hardness

         plastics blending methods in low hardness resin mixed high hardness resin, improve/increase its overall hardness. Common blending resin has: PS, PMMA, ABS and MF and other, need modified resin main/primary is PE type, PA, PTFE and PP and other.

         composite/compounding plastics hardness

         plastics composite/compounding hardness methods in low hardness plastics products surface upper composite/compounding high hardness resin. methods main/primary combined extrusion products, sheet/plate, sheet/slice, film and pipe/tube and other. commonly used composite/compounding resin is PS, PMMA, ABS and MF and other.