Study on Blending of Wall Material of the Nonel Tube by CSW/PE-g-MAH

Hong-Wei Li; Bin-Bin Zhang; Ji-Nian Yang; Huan Li; Ji-Chang Gui; Zhan Lei

doi:10.1155/2019/7590692

Study on Blending of Wall Material of the Nonel Tube by CSW/PE-g-MAH

J Anal Methods Chem. 2019 Dec 23:2019:7590692. doi: 10.1155/2019/7590692. eCollection 2019.

Authors

Hong-Wei Li¹, Bin-Bin Zhang¹, Ji-Nian Yang², Huan Li¹, Ji-Chang Gui¹, Zhan Lei¹

Affiliations

¹ School of Chemistry and Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China.
² School of Material Science and Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China.

Abstract

In order to improve the strength and resistance of ordinary nonel tubes, calcium sulfate whiskers (CSW, treated with silane coupling agent) and maleic anhydride grafted polyethylene (PE-g-MAH) are used to control the wall material of the nonel tube that the blending of the low-density polyethylene was enhanced. The effects of mass fraction of CSW or PE-g-MAH on the tensile properties, interfacial structure, melting and crystallization characteristics, and thermal decomposition behavior of the composite system were studied, and the thermal decomposition kinetics were calculated. The results show that, relative to pure LDPE, the strength of LDPE/CSW (85/15) is increased by 7.58%, and the strength of LDPE/CSW/PE-g-MAH (84/15/1) is increased by 7.58%. The addition of CSW or PE-g-MAH has gradually changed the fracture mode of the LDPE matrix. Thermal analysis shows that CSW can reduce the crystallinity of LDPE. The melting and crystallization characteristics of LDPE/CSW/PE-g-MAH composites have little effect, but the thermal decomposition stability is improved. The kinetic analysis showed that the reaction order (n) was around 1, CSW could improve LDPE/CSW thermal decomposition activation energy, and PE-g-MAH increased the thermal decomposition activation energy of LDPE/CSW/PE-g-MAH.