PVC heat-resistant modifier N-phenylmaleimide copolymer
The copolymer appears as tiny yellow powder or particles. The copolymer is insoluble in water, toluene and xylene, however, it can be soluble in organic
solvents such as tetrahydrofuran, N, N-dimethylformamide, etc
Ⅰ. Product name and structure
Product name: N-phenylmaleimide copolymer
Abbreviation: NSA copolymer
Physical and chemical properties: The copolymer appears as tiny yellow powder or particles.
The copolymer is insoluble in water, toluene and xylene, however, it can be soluble in organic
solvents such as tetrahydrofuran, N, N-dimethylformamide, etc.
Molecular structure: The molecular structure is a random amorphous copolymer, and the specific
molecular formula is shown in Fig. 1:
Ⅱ. Material Introduction
N-phenylmaleimide terpolymer is obtained by emulsion polymerization of N-phenylmaleimide
monomer and other monomers. The copolymer has a uniform glass transition temperature and
excellent heat resistance stability, and has good compatibility with PVC and other resins. It is a
very effective and economical heat resistant modifier for PVC and other resins. It can not only
significantly improve the temperature resistance of PVC resin, but also improve its processing
performance and Hardness, which has effective modification effects for PVC resin.
Ⅲ. Basic technical indicators
As a heat resistant modifier for PVC, PMMA resin, and photosensitive materials, it can not
only improve the heat resistance temperature of the resin, but also some mechanical properties
(such as hardness, tensile strength, etc.), hot melt and processing properties. According to thedifferent content of N-phenylmaleimide in the copolymer, the copolymer exhibits different glass
transition temperatures. When the dosage of NSA in PVC/NSA composite material is 10-30wt.%,
the heat resistance temperature of polyvinyl chloride can be increased by 10-25℃