In order to reduce the cost of cavity-glass sealants,renewable IIR filled with wood flour which was different particle diameters and with different surface treatment was adopted to prepare sealant.
为降低中空玻璃密封胶条的生产成本,用不同粒径及表面处理的木粉填充再生丁基橡胶来制备密封胶条。
Pseudo?-boehmite was prepared with nitric acid and sodium aluminate under different precipitation conditions.
在不同成胶条件下利用铝酸钠溶液和硝酸制备了拟薄水铝石 ,研究了 pH值、成胶温度、铝酸钠浓度及成胶时间的影响 。
