protective colloid


Also found in: Medical.

protective colloid

[prə¦tek·tiv ′kä‚lȯid]
(physical chemistry)
A colloidal substance that protects other colloids from the coagulative effect of electrolytes and other agents.
References in periodicals archive ?
Another valuable application for Nichigo G-Polymer is its use as a functional polymer protective colloid agent in emulsion polymerization of various acrylic emulsions.
5-60% weight protective colloid stabilized polymer solids wherein the protective colloid is a partially hydrolyzed polyvinyl alcohol having a degree of hydrolysis less than or equal to 95% mol, and the weight percents of cement, filler and protective colloid stabilized polymer solids are based on the total weight of the construction adhesive.
Wet end starch also works as a protective colloid for reactive sizes in alkaline papermaking.
The copolymer is prepared by emulsion polymerization and occurs in the presence of a nonionic protective colloid.
The degree of protection depends on the type and concentration of the protective colloid used [17].