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Citation: Yang Yuhua, Hua Rong, Bai Chunxia, Yu Min, Li Sanxi, Ge Tiejun. Miscibility and Properties of Linear Low Density Polyethylene/Low Density Polyethylene Blends[J]. Chinese Journal of Applied Chemistry, ;1996, 13(5): 88-90. shu

Miscibility and Properties of Linear Low Density Polyethylene/Low Density Polyethylene Blends

Yang Yuhua ¹ ,
Hua Rong ¹ ,
Bai Chunxia ¹ ,
Yu Min ¹ ,
Li Sanxi ² ,
Ge Tiejun ²

1.
1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
2.
2. Department of Polymer Science, Shenyang Institute of Chemical Technology, Shenyang

Received Date: 30 December 1995
Available Online: 21 May 1996

Miscibility and mechanical properties of blends of linear low density polyethylene(LLDPE) and conventional low density polyethylene(LDPE) were studied by differencial scanning calorimetry(DSC), wide angle X-ray diffraction, dynamic mechanical analysis and static mechanical property measurements. Three endothermic peaks are evident in the DSC traces of the blends, suggesting the formation of a new partly cocrystallized phase. The dynamic mechanical relaxation behaviour of the LLDPE/LDPE blends was found to be close to both components in the vicinities of γ and β regions whereas the blends are dominated by the LLDPE component at the high temperature α regions. The improvement in mechanical properties of the blends has been attributed to the partial cocrystallization between the components in the crystalline phase and the miscibility in the amorphous phase.
- DSC,
- WAXD,
- mechanical property,
- LLDPE,
- LDPE,
- blend,
- miscibility
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