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1·As a protective colloid, it can prevent droplets and particles from coalescing and agglomerating, thereby inhibiting formation of sediments.

作为防护胶体，它可能防止小滴和微粒凝结成块，从而抑制沉淀的形成。

2·Using the PVA as the protective colloid could increase the thickening ability and stability and electrolyte resistance etc and it was very effective.

采用PVA作为胶体保护剂，产品增稠能力强，稳定性好，耐电解质等综合性能均较好。

3·With thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gel, surface activity, water retention and protective colloid and other characteristics.

具有增稠，粘合，分散，乳化，成膜，悬浮，吸附，凝胶，表面活性，保持水分和保护胶体等特性。

4·It was pointed out that proper grafting of monomer onto protective colloid was vital to stability of colloid particle. So it is important to properly use protective colloid in emulsion polymerization.

指出了单体在保护胶体上的适量接枝是乳胶粒稳定的必要条件，因此，合理使用保护胶体在乳液聚合中有重要意义。