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发明公开
CN106116420A 一种粉刷石膏的制备方法 无效 - 撤回

  • 专利标题： 一种粉刷石膏的制备方法
  • 专利标题（英）： Preparation method of gypsum plaster
  • 申请号： CN201610469750.2
    申请日： 2016-06-26
  • 公开(公告)号： CN106116420A
    公开(公告)日： 2016-11-16
  • 发明人: 董晓 , 薛培龙 , 孟浩影
  • 申请人： 董晓
  • 申请人地址： 江苏省常州市新北区凤凰名城24栋703室
  • 专利权人： 董晓
  • 当前专利权人： 董晓
  • 当前专利权人地址： 江苏省常州市新北区凤凰名城24栋703室
  • 主分类号： C04B28/16
  • IPC分类号： C04B28/16 ;  C04B41/50
一种粉刷石膏的制备方法
摘要：
本发明涉及一种粉刷石膏的制备方法，属于建筑材料制备技术领域。本发明首先取K2HPO4、MgSO4等物质混合制备培养基，再将自制的变异氧化硫杆菌接种于培养基上进行培养，得到变异氧化硫杆菌菌种，将其与自制的无水硫酸钙和半水硫酸钙混合物进行混合加热，并同时加入羧甲基纤维素钠等物质，制备得混合物，最后将混合物与细陶砂、硅藻土等物质混合加热搅拌，即可得到粉刷石膏。本发明制备的粉刷石膏保水率为94～96％，不会由于水化不足，产生干缩裂痕的现象；抗压强度高，抗压强度为6.5～7.0MPa；制备步骤简单，所需成本低。
摘要（英）：

The invention relates to a preparation method of gypsum plaster and belongs to the technical field of building material preparation. The preparation method comprises the following steps: firstly, a growth medium is prepared from K2HPO4, MgSO4 and other substances through mixing; then, the growth medium is inoculated with home-made mutant thiobacillus thiooxidans for culturing the home-made mutant thiobacillus thiooxidans, a mutant thiobacillus thiooxidans strain is obtained and is mixed with a home-made anhydrous calcium sulfate and calcium sulfate hemihydrate mixture and heated, meanwhile, sodium carboxymethyl cellulose and other substances are added, and a mixture is prepared; finally, the mixture is mixed with fine pottery sand, diatomaceous earth and other substances, heated and stirred, and the gypsum plaster is obtained. The water retention rate of the gypsum plaster is 94%-96%, and shrinkage cracks due to insufficient hydration can be avoided; the compressive strength is as high as 6.5-7.0 MPa; preparation steps are simple, and required cost is low.

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