
好词典

源自美国怀俄明州Fort Benton矿床(19世纪发现地)+ 矿物学后缀 -ite。
❶ 一种由火山灰形成的黏土矿物,吸水后膨胀,常用于钻井泥浆、铸造砂型粘合剂及化妆品等工业领域。
“Bentonite is widely used in the oil industry for drilling fluids.”
(膨润土广泛应用于石油工业的钻井泥浆中。)
“The foundry added bentonite to the sand mixture to improve mold strength.”
(铸造厂在砂混合物中添加膨润土以提高模具强度。)
sodium bentonite — 钠基膨润土,膨胀性更强,常用于密封和环境工程中的防渗层。
“Sodium bentonite was used to line the landfill to prevent contamination.”
(使用钠基膨润土铺设垃圾填埋场衬里以防止污染。)
calcium bentonite — 钙基膨润土,吸附性能较好,多用于宠物用品和工业净化。
“Calcium bentonite is less swelling but has higher adsorption capacity.”
(钙基膨润土膨胀性较低但吸附能力更强。)