TY - JOUR
T1 - Comparisons of different polypropylene copolymers as potential recyclable HVDC cable insulation materials
AU - Meng, Pengfei
AU - Zhou, Yao
AU - Yuan, Chao
AU - Li, Qi
AU - Liu, Jiping
AU - Wang, Haoming
AU - Hu, Jun
AU - He, Jinliang
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - The potential recyclable thermoplastic materials represent the future trend of the HVDC cable insulation material to replace crosslinked polyethylene (XLPE). Polypropylene block copolymer (PPB) and polypropylene random copolymer (PPR) with different weight-averaged molecular weight (Mw) were used to investigate the influence of different structure on their properties. The morphology, thermal, mechanical and electrical properties of the PP copolymers were comprehensively studied. The results show that PPB has good thermal properties, but its poor mechanical properties of low breaking elongation and low DC breakdown strength make it not suitable for recyclable HVDC cable insulation application. While PPR has relatively good thermal properties, high breaking elongation and high breakdown strength, which is significantly higher than XLPE and its space charge behavior is much better than PPB and XLPE. So PPR is more potentially suitable for recyclable cable insulation application.
AB - The potential recyclable thermoplastic materials represent the future trend of the HVDC cable insulation material to replace crosslinked polyethylene (XLPE). Polypropylene block copolymer (PPB) and polypropylene random copolymer (PPR) with different weight-averaged molecular weight (Mw) were used to investigate the influence of different structure on their properties. The morphology, thermal, mechanical and electrical properties of the PP copolymers were comprehensively studied. The results show that PPB has good thermal properties, but its poor mechanical properties of low breaking elongation and low DC breakdown strength make it not suitable for recyclable HVDC cable insulation application. While PPR has relatively good thermal properties, high breaking elongation and high breakdown strength, which is significantly higher than XLPE and its space charge behavior is much better than PPB and XLPE. So PPR is more potentially suitable for recyclable cable insulation application.
KW - electrical properties
KW - mechanical properties
KW - polypropylene copolymer
KW - recyclable insulation material
KW - thermal properties
UR - https://www.scopus.com/pages/publications/85066474647
U2 - 10.1109/TDEI.2019.8726011
DO - 10.1109/TDEI.2019.8726011
M3 - 文章
AN - SCOPUS:85066474647
SN - 1070-9878
VL - 26
SP - 674
EP - 680
JO - IEEE Transactions on Dielectrics and Electrical Insulation
JF - IEEE Transactions on Dielectrics and Electrical Insulation
IS - 3
M1 - 8726011
ER -