Shanghai Daoqin Plastics Co., Ltd.

left salt right zinc

        一, 钙 zinc, 铅 salt stabilizer excellent disadvantages

        1, salt stabilizer

         advantages:

         heat stabilized good, especially is long heat stabilized property good;

         electrical insulation, weather resistance can good;

         price low 廉;

        良 good processing properties combined various process;

         disadvantages:

         color 像差, can used for transparent product!

        俩字: has 毒

        2, zinc stabilizer

         advantages:

         green environmental protection product;

        彻底 solution 硫铅污染 phenomenon;

        材 material in a small amount of can can and gas in combined, especially is high temperature high wet 方.

        良 good 切换适应 property; if use salt stabilizer, more its it stabilizer has can can formed 交叉污染, is zinc stabilizer can 够打消你 顾虑.

         specific gravity light, can increase machine filler, reduce cost.

        二, use zinc stabilizer precautions:

        确认 stabilizer formulation green environmental protection property; need attention/notes heavy metal (铅, 镉, 锡, 钡) content is can meet/satisfy product, combined new standards requirements.

        钙 zinc stabilizer inner lubricated function strong/high, need add outer lubricant need more. this in lower introduction.

        钙 zinc stabilizer heat stabilized property ratio salt need low, processing need narrow 一, control requirements more high.

        操 as process attention/notes cycle, zinc stabilizer lubricant add amount relatively more, easy 导致析出 increase, from effect/influence to cycle. for/regarding large production effect/influence more large, need 严格挑选 stabilizer product types. if is has stabilizer, need combined in rear lubricated good PE wax (如青岛邦尼 108 and other) or oxidation wax. also need control true degree, can decrease/reduce 析出, long mold time.

         good stabilizer formulation and use amount for product appearance, material property can, resistant aging property and other effect/influence large.

        三, zinc stabilizer lubricated use features

         in use zinc stabilizer replace salt stabilizer process in process parameters need has adjustment, to is need to need material property can and degree. this need attention/notes, zinc stabilizer use to lubricant amount need ratio salt more. lower 看.

        首先, need understanding stabilizer main/primary formed separation 差异:

        铅 salt: 3PbO・PbSO4(无 machine salt)

        钙 zinc:

         hard acid:

        之 therefore will hard acid is is let for zinc stabilizer in formed separation for lubricated property effect/influence has more 进一步 understanding.

        之 front 说, need maintain PVC resin uniform property need inner outer lubricated function, will external can amount relatively is uniform to PVC resin upper, hard acid to inner lubricated function. lower 图, small 圆圈代 table/sheet hard acid belt/tape property acid that 一头, positive is this function can let hard acid to PVC resin pellets upper, can in processing process in in pellets surface 翻腾, to inner lubricated function.

         hard acid 钙, hard acid zinc and hard acid structure versus 似, more belt/tape electrical 荷 钙离子 and zinc 离子. how to understanding belt/tape electrical 荷 离子, 说白 说 极 property its is electrical 荷 吸引 force. zinc electrical large large reinforcement its property, need in PVC commonly used lubricant in hard acid 钙, zinc and other property is most strong/high. this 就赋予 its and PVC resin more strong/high hydrophilic and force, from decrease low or remove PVC resin pellets internal 各层离子键 吸引 force, make PVC versus 互缠绕 链段 easy expand dispersion, formed sliding degree high, scratch hot large, for machine force efficiency high, accelerated material material rise temperature, resin 渡塑化. salt 自身没 has this type of effect/influence.

        也就 is zinc stabilizer remove has stability function, meanwhile shrink short time, can promote 塑化. false use is salt stabilizer, use zinc stabilizer, in use same lubricant (包括 stabilizer in) front lower, use salt can 够产出 combined product, use zinc promote material material front 塑化, has can can formed material phenomenon.

         solution method:

         attention/notes hard acid use amount, can less use less use, combined selection outer lubricant selection, increase outer lubricant use amount, 推迟塑化, heat resistant conditions 允许 情况 lower less use lubricant. control its it material property can indicators.