Environmental Engineering Reference
In-Depth Information
6
Environmentally-Friendly Acrylates-Based
Polymer Latices
Sweta Shukla*
,1
and J.S.P. Rai
2
1
Assistant Professor, KIET Ghaziabad, U.P. India
2
Director, Harcourt Butler Technological Institute, Nawabganj, Kanpur, U.P. India
Abstract
Acrylic copolymers have achieved prime importance in various avenues of indus-
trial application such as adhesive in packaging and construction, binder and sta-
bilizer in textiles, base coat in leather, topcoat in l oor polish, pigment binder in
paper industries, etc. Acrylic resins are generally known to have superior exterior
durability and weather resistance compared to other organic binders/i lm-formers
commonly used in surface coatings. h e emulsion polymerization of acrylic
monomers provides a good combination of performance properties required in
i lm formation. h ese properties depend on the copolymer composition, particle
size, molecular weight, glass transition temperature (Tg), morphology of the latex
particles, etc.
In this chapter, the reaction components and polymerization process condi-
tions that af ect the inherent characteristics of the polymers are presented. h ere
is a discussion of the incorporation of comonomer, which would lead to an
improvement in the l exibility of i lms produced along with adhesion, gloss, hard-
ness, solvent resistance, water resistance, etc. Also, there is a recently developed
successful approach for achieving balanced properties which involves the copo-
lymerization of i lm-forming monomers like acrylate and methacrylates with
crosslinkable monomers.
Keywords:
Acrylate, coating, crosslinker, waterborne
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