Thermal Stability and Rheological Properties of Polyethylene (PE)/Polyvinylchloride (PVC)/Wood Composites

Xing Wang; Bin Yang; Ru Xia; Ji-Bin Miao; Jia-Sheng Qian; Peng Chen; Shuang-Quan Deng

doi:10.6000/1929-5995.2012.01.02.6

Authors

Xing Wang College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Bin Yang College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Ru Xia College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Ji-Bin Miao College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Jia-Sheng Qian College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Peng Chen College of Chemistry & Chemical Engineering, and the Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, Anhui University, Hefei 230039, Anhui, P.R. China
Shuang-Quan Deng College of Polymer Science & Engineering, and the State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, P.R. China

DOI:

https://doi.org/10.6000/1929-5995.2012.01.02.6

Keywords:

WPC, molecular characteristic, thermorheological complexity, intumescent flame retardant, char residue

Abstract

This paper investigated the thermorheological properties, thermal properties and flame retardant properties of wood-plastic composites (WPCs). With the addition of wood flour (WF), the rheological behavior became complexity. The critical frequency of shear-thinning phenomenon of the melt viscosity was shifted toward lower value. The temperature dependence of elastic modulus, loss modulus became more serious with the addition of WF. The Cole-Cole plot indicated the existence of complex multi-phase structure in the WPC melt. The CONE calorimetry results showed that ammonium polyphosphate (APP) had good flame retardancy through promoting the formation of the intumescent carbon layer. The present study will supply good insight into the optimization of WPC formulation.

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