The paper analyzes its performance with the range of the content of gas former, expanding pearlite and water-cement ratio 文中对引气剂用量、珍珠岩用量及水灰比对材料吸声性能影响进行了研究与分析。
A new type of sound absorbing materials mainly made from low alkaline cement and expanding pearlite has been investigated on the basis of sound absorption principle 摘要以低?水泥和膨胀珍珠岩为主要原料,辅之以分散性良好的增强剂聚丙烯纤维,研制出一种新型吸声材料。
These additives have no adverse effect on the properties of the coating, and the optimum contents of them are : hydrophobic additive 6 %, sepiolite 6 % and expanded pearlite 3 % 在该材料中疏水添加剂的最佳含量为6,海泡石最佳含量为6,膨胀珍珠岩的最佳含量为3。
Dried at the temperature, the film has surface with convex and concave microstructure, its hydrophobicity and surface roughness can be improved evidently by adding the bead-forming agent . ( 3 ) the self-cleaning and heat-insulated building coating with excellent hydrophobic property and gas-permeability was preparaed by using the hydrophobic additive, modified sepiolite and modified expanded pearlite (3)应用疏水添加剂、改性海泡石、膨胀珍珠岩能够制得自清洁隔热功能涂覆材料;制备的疏水添加剂和经提纯、疏水改性后的海泡石和膨胀珍珠岩,对乳胶涂料的流变性能、稳定性能以及涂膜的疏水性能、对比率和其他常规性能无不良影响。