The synthesis of polyether type defoamer agent and its application to the process water in the ethylene device are reported.
较详细地报导了聚醚型消泡剂的合成及在乙烯装置工艺水中的应用。
Polyether type of polyurethane has good dynamic function, which has been used in waterpower machines to anti - wear and anti - cavitation.
聚醚型聚氨酯具有优良的力学性能，已被广泛应用于水力机械抗磨和抗气蚀。
Environment in summer and winter were simulated. Roles of catalysts on the aeration, hardness and deformation of polyether type PU soft foam were studied.
模拟冬夏季节环境，考察了不同催化剂对聚醚型聚氨酯软质泡沫通气性、硬度和压缩变形的影响。
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