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2006•Polymer-Plastics Technology and EngineeringRequires access

Influence of Phase Dispersant on the Cocross-Linking of Polyvinyl Chloride with Low Density Polyethylene

Xiaoye Luo, Zhongbin Xu, Zhengping Fang

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Abstract

The cocross-linking of polyvinyl chloride (PVC) and low density polyethylene (LDPE) was studied by THF extraction, FTIR, and Dynamic rheological analysis. It is found that dicumyl peroxide (DCP) could neither induce the cross-linking of PVC itself nor cause PVC chains to cocross-link with LDPE. Butadiene rubber (BR), as a solid phase dispersant (SPD) can not give a hand to the cocross-linking. However, NBR, both as a compatibilizer and SPD, can induce PVC to be crosslinked or cocross-linked with LDPE initiated by DCP. The composite cross-linking agent that consists of DCP, triallyl isocyanurate (TAIC), and magnesium oxide (MgO) is easy to induce PVC to cross-link itself or cocross-link with LDPE.

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What this paper is about

The cocross-linking of polyvinyl chloride (PVC) and low density polyethylene (LDPE) was studied by THF extraction, FTIR, and Dynamic rheological analysis. It is found that dicumyl peroxide (DCP) could neither induce the cross-linking of PVC itself nor cause PVC chains to cocross-link with LDPE. Butadiene rubber (BR), as a solid phase dispersant (SPD) can not give a hand to the cocross-linking. However, NBR, both as a compatibilizer and SPD, can induce PVC to be crosslinked or cocross-linked with LDPE initiated by DCP. The composite cross-linking agent that consists of DCP, triallyl isocyanurate (TAIC), and magnesium oxide (MgO) is easy to induce PVC to cross-link itself or cocross-link with LDPE.

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Available abstract

The cocross-linking of polyvinyl chloride (PVC) and low density polyethylene (LDPE) was studied by THF extraction, FTIR, and Dynamic rheological analysis. It is found that dicumyl peroxide (DCP) could neither induce the cross-linking of PVC itself nor cause PVC chains to cocross-link with LDPE. Butadiene rubber (BR), as a solid phase dispersant (SPD) can not give a hand to the cocross-linking. However, NBR, both as a compatibilizer and SPD, can induce PVC to be crosslinked or cocross-linked with LDPE initiated by DCP. The composite cross-linking agent that consists of DCP, triallyl isocyanurate (TAIC), and magnesium oxide (MgO) is easy to induce PVC to cross-link itself or cocross-link with LDPE.

Key concepts: Low-density polyethylene, Polyvinyl chloride, Dispersant, Polyethylene, Materials science, Rheology, Natural rubber, Extraction (chemistry)

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Influence of Phase Dispersant on the Cocross-Linking of Polyvinyl Chloride with Low Density Polyethylene — Research Paper | ScholarLens