另外，在阻焊膜涂覆前，用等离子体对印制电路板面处理一下，还可获得一定的粗糙度和高活性的表面，从而提高阻焊膜层的附着力。
In addition, the solder mask coating on printed circuit board, with the plasma treatment, can also obtain certain roughness and high active surface, thus improving the solder coating adhesion.
本文采用高取代度季铵型阳离子淀粉、氨基烯烃聚合物以及紫外线吸收剂BP - 4接枝氨基烯烃聚合物作为阳离子化试剂对棉纤维进行物理改性，用于活性染料无盐竭染。
Cationic starch of quaternary ammonium type with high DS, polyamines and polyamines grafted with UV-absorber BP-4 were applied as cationic agents of cotton in salt-free dyeing of reactive dyes.
研究表明：亚麻纤维经某些阳离子助剂预处理改性后用活性染料染色，对于提高上染率、牢度和柔软度具有显著的作用。
The results showed that the premodification of flax yarns with some cationic aux. increased markedly the dye-pickup, fastness and softness.
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