例句 /

Thermoplastic phenol-formaldehyde resin bond synthesized by solution po1ymeization is commonly used in making diamond grinding wheel, which has disadvantages such as: absorbing moisture, difficult mixing, can not being long term store, needing curing agen

Thermoplastic phenol-formaldehyde resin bond synthesized by solution po1ymeization is commonly used in making diamond grinding wheel, which has disadvantages such as: absorbing moisture, difficult mixing, can not being long term store, needing curing agen

目前,金刚石树脂砂轮普遍采用溶液聚合热塑性酚醛树脂作结合剂,此结合剂存在著易吸潮结团、混料困难、不易长期存放,需加固化剂才能固化,且固化过程中有大量的有害气体溢出,使用时需要加工成粉末等缺点。