抗静电脱硫石膏纤维板的研制
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摘要
以枝桠材及加工剩余物为主要原料制备木质纤维作为增强材料,工业排烟脱硫废弃物经煅烧制得的半水硫酸钙为粘结剂,加入高效复合缓凝剂增加脱硫石膏的初凝时间,满足生产工艺要求;加入导电炭黑使最终生产出的脱硫石膏纤维板的系统电阻降低,达到抗静电产品要求。试验结果表明:A型导电炭黑加入量为脱硫石膏质量分数的11%时,B型导电炭黑加入量为脱硫石膏质量分数的5%时,抗静电脱硫石膏纤维板的系统电阻可满足LY/T 1330-1999《抗静电木质活动地板》标准要求,此时抗静电脱硫石膏纤维板的物理力学性能达到相关标准要求。
Taking the wood fiber prepared from agriculture or forestry biomass resources and processing residues as a reinforcing material,the calcium sulfate hemihydrates calcinated from industrial smoke desulphurization waste as a binder,adding efficient composite retarder to increase the initial setting time of gypsum,and to meet the production process requirements;adding conductive carbon black to reduce system resistance gypsum fiber lo produce,and to meet the requirements of antistatic products.The results showed thai the percent(for desulfurization gypsum quality) of A and B type conductive carbon black is 11% and 5% respectively,the system resistance of the antistatic desulfurization gypsum fiber board can meet the requirement of LY/T 1330—1999 "anti—static wood based movable floor" standard requirements,at the same time physical and mechanical properties of the antistatic desulfurization gypsum fiber board can achieve the requirements of relevant standards.
Taking the wood fiber prepared from agriculture or forestry biomass resources and processing residues as a reinforcing material,the calcium sulfate hemihydrates calcinated from industrial smoke desulphurization waste as a binder,adding efficient composite retarder to increase the initial setting time of gypsum,and to meet the production process requirements;adding conductive carbon black to reduce system resistance gypsum fiber lo produce,and to meet the requirements of antistatic products.The results showed thai the percent(for desulfurization gypsum quality) of A and B type conductive carbon black is 11% and 5% respectively,the system resistance of the antistatic desulfurization gypsum fiber board can meet the requirement of LY/T 1330—1999 "anti—static wood based movable floor" standard requirements,at the same time physical and mechanical properties of the antistatic desulfurization gypsum fiber board can achieve the requirements of relevant standards.
引文
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[3]吴海红,尤鹤翔,董云飞,等.聚酰亚胺/导电炭黑抗静电复合薄膜的性能研究[J].绝缘材料,2012,45(2):8-11.
[4]冯猛,曾敏,王新林.两种炭黑导电橡胶复合材料的电磁屏蔽性能[J].安全与电磁兼容,2011(6):65-80.
[5]党晓容,张勇,陈士安.分散剂在聚丙烯/炭黑抗静电材料中的应用[J].中国塑料,2008,22(8):80-84.
[6]郭巍,吴行,郑振忠.导电炭黑/天然橡胶力学和导电性能研究[J].绝缘材料,2011,44(1):58-65.
[7]杨琼,吉建立,杨贵钦,等.炭黑质量分数对炭黑/聚丙烯复合材料导电性影响[J].云南化工,2009,36(1):21-38.