Shanghai Daoqin Plastics Co., Ltd.

         carbon acid as is filling material, its property 不言而喻, as is plastics industrial in use amount most large, application most powder filler, year use amount to 数百 10,000 tons, used for substitute/replace 以石油 is raw materials combined formed resin, versus 当于国家 less 建2～3 base/seat large type 石油化 factory.

        实践 table/sheet 明, carbon acid not only can reduce plastics products Raw Materials cost, also can improvement plastics material certain property can, 而“ for lower 药” suitable different types type carbon acid 钙, can significantly improve/increase plastics property can. 今天我们 聊聊 carbon acid 钙 两 important type 别: light carbon acid and heavy carbon acid 钙.

        都 belongs to carbon acid 钙, has which different?

        ◆◆ 源 methods different ◆◆

         light carbon acid is chemical combined formed carbon acid 钙, also 称沉淀 carbon acid 钙, carbon acid or active property carbon acid 钙, can production nano carbon acid 钙, light 钙. it is will 石灰石 raw materials 煅烧生 formed and oxidation carbon, again add water 消化石灰生 formed 石灰乳, its main/primary formed separation hydrogen oxidation 钙, 通入二 oxidation carbon carbon 化石灰乳生 formed carbon acid 钙沉淀, water, drying and powder made, or carbon acid nano and chlorine 化钙进行复 separation understanding reaction formed carbon acid 钙沉淀, water, drying and powder made.

         heavy carbon acid 钙简称 heavy 钙, is use machine methods powder 碎天然 方 understanding 石, large 理石, 白垩, housing/shell and other made.

        ◆◆堆积 density different ◆◆

         heavy and light most obvious difference in product density different, heavy product density relatively large, generally is 0.8～1.3g/cm3;而 light product density relatively small, more is 0.5～0.7g/cm3;一 nano carbon acid product density more low, can to 0.28g/cm3 left right.

        ◆◆白 degree large small different ◆◆

         due to heavy product versus for relatively more, therefore product degree generally is 89%～93%, less product can to 95%. light product is chemical combined formed made formed, remove very more 杂质, product pure degree very high, therefore degree more is 92%～95%, separation product can to 96%～97%, this is light product more used for high or shallow color products filling main/primary causes.

        ◆◆ water separation content different ◆◆

         heavy product water separation generally is 0.2%～0.3%, water separation content comparison low meanwhile relatively is stability, high heavy product water separation can to 0.1% left right. light product water separation 0.3%～0.8%, has has 一定 波动不太 stability. upper heavy, light 钙 区 separation is use water device testing water separation, water separation large to 接近1%就 is light 钙, small to 0.1% below/following is heavy 钙.

        ◆◆粒径 large small different ◆◆

         heavy product is 0.5～45um不 and other, product 粒径因 powder equipment different different. light product generally is 0.5～15um, pellets is 纺锤形 difficult 以准确测定, generally is scope/range; light in nano carbon acid 钙粒径 more fine, dimensions generally is 20～200nm.

        ◆◆味道 different ◆◆

         light 钙因石灰石煅烧 rear remove very more generally degree relatively high, pure degree relatively high, inner light very more is oxidation reaction full, has 石灰味道, if used for food industry, filling dry has 呛人 味道, heavy has.

         another, more oxidation 钙会造 formed product in water property system alkali property or 者PH value good adjustment, formed product unstable. in addition, 两者 磷 acid content different, light in has is adjustment PH value combined scope/range need add a small amount of acid, heavy 钙则没 has.

        ◆◆ pellets different ◆◆

         use high micro 镜看, light pellets relatively is 规则, in separation dispersion 开 情况 lower usually 呈纺锤形. for/regarding light carbon acid 钙, combined formed product pellets is can is control, can in carbon process in add control agent achieve control.

         heavy product due to different heavy processing methods, carbon acid micro different. heavy carbon acid different carbon acid tool has solid 定 晶形, and fine 化不会改变晶 type, generally understanding heavy is 六方晶 type, large heavy is 立方晶 type.

         for/regarding light carbon acid 钙, in specific carbon made process in, types type carbon acid 钙以不 year-on-year meanwhile 出现. light carbon acid 钙 三 types type main/primary 包括: understanding type, 文石晶 type, 球霰石晶 type.

        ◆◆吸油 value different ◆◆

         light carbon acid 钙 吸油 value is 60-90 ml/100mg, large heavy carbon acid 钙 40-60ml/100mg, therefore absorption liquid property and absorption resin property can very good. if formulation has liquid additives, selection value small heavy carbon acid. value large machine powder 体, 会导致 need coupling agent amount increase.

        ◆◆ flow property different ◆◆

         from flow property upper 考虑, light carbon acid micro structure is 纺锤形状, add upper its 自身吸油 value comparison large, can will formulation in promote flow separation lubricant, increase agent, coupling agent, dispersant and other absorption, therefore it flow property heavy carbon acid good, generally add amount ultra- 25份就严 heavy effect/influence flow property.

        而 heavy carbon acid is pellets can promote flow property, add amount 不受限, in PVC pipe/tube formulation in if carbon acid add ultra- 25份, if from flow property upper most good selection heavy carbon acid 钙.

        ◆◆ price different ◆◆

         heavy carbon acid processing main/primary is through machine 械破碎, abrasion methods achieve; light carbon acid production is through chemical reaction rear made 取, rear ratio front process complex more, requirements versus 应严格 more, therefore and other heavy carbon acid need ratio light carbon acid 钙便宜30% left right, if property can can selection heavy carbon acid more 经济便宜.

        ◆◆ modified function different ◆◆

         heavy, light carbon acid 钙两者 modified 效果区 separation has fine micro difference, heavy carbon acid for tensile strength relatively good, light carbon acid for impact strong/high degree and rigid property relatively good, generally use light plastics surface more light slip 一, but also density low 一; use heavy plastics processing flow property need good 一, but also relatively small heavy filling plastics property can relatively good.

        ◆◆ modified function different ◆◆

         for/regarding heavy carbon acid 钙而言 different carbon acid 钙 发出 底 color different, and fine 化也不会改变. 如四川 carbon acid color color, carbon acid color color, carbon acid color color and other and other.

        而 for/regarding light carbon acid 钙, is it is chemical combined formed method made formed, in combined formed process in can control its generate type types type, has can control its color light type type.

        ◆◆PH value large small different ◆◆

         light carbon acid PH value is 9-10, heavy carbon acid PH value is 8-9, is light carbon acid alkali property specific gravity carbon acid more strong/high 一, in carbon acid composite/compounding products process in, more add easy absorption acid property separation understanding gas 体.

         therefore, carbon acid composite/compounding products low gas causes is carbon acid 钙本身呈现 alkali property, can absorption generate HCI, H2S and other acid property gas 体, remove acid property can material chlorine generate 二噁英 隐患.

         in day 韩发达国家 and Taiwan environmental protection method 明确规定凡 one-time property plastics waste bag, production must add carbon acid 钙(CaCO3), Japan 规定焚烧处理 plastics waste bag requirements has 30% above carbon acid 钙, 并由专门 environmental protection 部门监 made.

         has filling machine material carbon acid 钙(CaCO3) in 焚烧时才 can reduce hot amount, 焚烧时化 is powder 末不滴油, 不冒黑烟, 无二次公害 generate, loss 伤焚化炉, combined environmental protection product trend. therefore, from carbon acid composite/compounding products low 释放毒 gas upper 考虑, light carbon acid tool has more add environmental protection 社会意义.

         positive separation light carbon acid and heavy carbon acid 钙, for/regarding modified engineering in specific formulation design tool has heavy large 意义. 选取适 combined carbon acid 钙, not only can reduce cost, more has achieve modified plastics products excellent property can.