protective colloid


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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.
Its performance is unique and it can resist mineral oils, grease, lubricant and most organic solvents; it can not absorb sound but can accurately transmit sound and at the same time has a good bonding strength, membrane flexibility and smoothness, oil resistance, solvent resistance, protective colloid, gas blocking, wear resistance, as well as water resistance after special treatment.
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].