A Review of Styrene-Maleic Anhydride Copolymers

2022.02.24

Although styrene-maleic anhydride copolymer (SMA) is a new type of polymer material with excellent performance and low price, its importance has only been recognized in the last two or three decades. Because SMA molecules contain acid anhydride functional groups with strong polarity and high reactivity, it is widely used in water treatment agents, adhesives, modifiers for latex coatings, dispersants for pigments, emulsifiers for floor polishing, Emulsifiers for pesticides, curing agents for epoxy resins, etc. SMA resin is also an effective modifier for most general-purpose polymer structural materials. It can form a good blend with PVC, ABS, PC and other polymer materials. The resin-modified polymer has the advantages of high heat distortion temperature, low melt viscosity, good processing performance and surface properties of the product, etc. The polymer material modified by SMA can still be used for painting, thermal coating, welding and drilling. , bonding and other coating processes.

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