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碳酸钙生产厂家教你怎么去选碳酸钙

  1、碳酸钙含量要高,硅、铁等元素的化合物要尽量低,
  2、有害重金属元素含量更要严格要求?/span>
  3、白度要尽可能高

  无论重钙还是轻钙,其白度主要取决于资源。对于塑料材料来说,白度高低并不影响材料的力学性能和加工性能,但白度高给人的感觉好,同样的性能白度高的更具竞争优势?/span>


  4、吸油值越低越?/span>
  100g粉体材料所能吸收的邻苯二甲酸丁二醇酯(DBP)的更大量称之为该材料的吸油?对于某些塑料制品,如软质聚氯乙烯、人造革、电缆料等,需使用增塑?/span>,碳酸钙吸油值越高,越易将增塑剂吸附到填料中,使其失去增塑树脂的作用,从而为达到一定的柔软度需加大增塑剂用量,造成成本上升。通过对碳酸钙表面处理,将碳酸钙颗粒表面包覆,可以降低其吸油值。例如,经偶联剂处理?a href="/supply/2.html" target="_blank">轻质碳酸?/a>其吸油值可?2.91g/100g降至49.33g/100g?/span>
  5、细度要适当,并非越细越好,粒径分布也要因需而定?/span>
  6、活化不活化要应依下游用户需求而定?/span>
  以上就是碳酸钙生产厂?/b>小编为您分享的全部内容了,买碳酸钙,选购碳酸钙产品,欢迎来电咨询我们?/span>

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