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Citation: Liu Wanjun, Yand Jun, Liu Jingjiang. Study on the Melting Reactive Mixing and Dynamic Mechanical Properties of HIPS/PP Blends[J]. Chinese Journal of Applied Chemistry, ;1998, 15(4): 54-58. shu

Study on the Melting Reactive Mixing and Dynamic Mechanical Properties of HIPS/PP Blends

Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 10 October 1997
Revised Date: 30 December 1997

The melt reactive blending and dynamic mechanical properties of HIPS/PP blends in the presence of dicumyl peroxide(DCP) were studied. The results show that the degradation of PS was the main process in HIPS/DCP mixture while the cross-linking and grafting are the predominate in the PB phases. PP was degraded when it was mixed with DCP in molten state. However, the grafting of PP onto HIPS was a main process in HIPS/PP/DCP blends. The characteristic of molecular motion in HIPS/PP/DCP blends is significantly different from that in HIPS/PP blends. The glass transition temperature of PS phase was decreased and that of PB and PP phases were increased. The melt reaction mixing of HIPS/PP blends led to the in-situ compatibilization.
- high impact polystyrene,
- polypropylene,
- reactive compatibilization,
- dynamic mechanical property
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