Preparation and properties of poly(butylene succinate-co-butylene diphenyl ether dicarboxylate)/polybutylene terephthalate composites

ZHAO Caixia; YU Miaomiao; XU Yuan; LI Jinchun; DAI Junming; PAN Xiaohu; LI Naixiang

doi:10.13801/j.cnki.fhclxb.20210726.002

Volume 39 Issue 5

Mar. 2022

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ZHAO Caixia, YU Miaomiao, XU Yuan, et al. Preparation and properties of poly(butylene succinate-co-butylene diphenyl ether dicarboxylate)/polybutylene terephthalate composites[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2192-2200. doi: 10.13801/j.cnki.fhclxb.20210726.002

Citation:

ZHAO Caixia, YU Miaomiao, XU Yuan, et al. Preparation and properties of poly(butylene succinate-co-butylene diphenyl ether dicarboxylate)/polybutylene terephthalate composites[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2192-2200. doi: 10.13801/j.cnki.fhclxb.20210726.002

Citation:

ZHAO Caixia, YU Miaomiao, XU Yuan, et al. Preparation and properties of poly(butylene succinate-co-butylene diphenyl ether dicarboxylate)/polybutylene terephthalate composites[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2192-2200. doi: 10.13801/j.cnki.fhclxb.20210726.002

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Preparation and properties of poly(butylene succinate-co-butylene diphenyl ether dicarboxylate)/polybutylene terephthalate composites

doi: 10.13801/j.cnki.fhclxb.20210726.002

ZHAO Caixia^1
,,
YU Miaomiao^1
,,
XU Yuan^1
,,
LI Jinchun^{1
,
,},
DAI Junming^2
,,
PAN Xiaohu^2
,,
LI Naixiang^2
,

1.
Industrial Institute of Resource Recylcling and Innovative Materials, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
2.
Sinopec Yizheng Chemical Fibre Limited Liability Company, Yizheng 211900, China

Received Date: 2021-05-10
Accepted Date: 2021-07-09
Rev Recd Date: 2021-07-01

Available Online: 2021-07-26

Publish Date: 2022-03-23

Abstract

Abstract

Polybutylene terephthalate (PBT) is a semi-crystalline thermoplastic polymer with excellent dimensional stability, high stiffness and hardness, good chemical resistance, mechanical properties and processability. But its impact resistance is low and toughness is poor. PBT was melt blended with poly(butylene succinate-co-butylene diphenyl ether dicarboxylate) (PBSO), which has excellent toughness, to improve the toughness of PBT. Firstly, PBSO was synthesized by a two-step method of esterification and polycondensation, using diphenyl ether dicarboxylic acid (OBBA), succinic acid (SA) and butanediol (BDO) as monomers, and tetrabutyl titanate as catalyst. Then, PBSO/PBT with different mass ratios of PBSO and PBT were blended by melt-extrusion to study the toughening effect of PBSO on PBT. The mechanical toughness of blends, the compatibility of PBSO and PBT, crystallization behavior, thermal stability and rheological properties were studied. The structure of PBSO was characterized by FT-IR, ¹H NMR and GPC. The mechanical performance test show that the tensile strength of the 20wt%PBSO/PBT composite material is 40.3 MPa, the elongation at break reach to 82.1%, the breaking energy increas to 24.70 MPa, and the impact strength is 23.2 kJ/m², indicating a higher tensile strength and good toughness. Dynamic mechanical analysis (DMA) and SEM results indicate that PBSO has a compatibilizing effect on PBT, and PBSO/PBT is a partially compatible blend system. DSC and wide-angle X-ray diffraction (WAXD) results show that the addition of amorphous polymer PBSO reduce the crystallinity of PBT, but do not change the crystal structure of PBT. Thermogravimetric analysis (TGA) analysis demonstrated that the PBSO/PBT composite has a good processing thermal stability.
- poly(butylene succinate-co-butylene diphenyl ether dicarboxylate) ester,
- PBT,
- toughening,
- compa-tibility,
- crystallization behavior
Long Abstrsct
Innovation Points

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References(17)

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