Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 135, Issue 43, Pages -Publisher
WILEY
DOI: 10.1002/app.46839
Keywords
blends; glass transition; morphology; poly(vinyl chloride); structure-property relationships
Categories
Funding
- Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD)
Ask authors/readers for more resources
In this work, acrylonitrile-styrene-acrylate (ASA) terpolymer was used to toughen rigid poly(vinyl chloride) (PVC). ASA has a core-shell structure, where the poly(butyl acrylate) (PBA) serves as the soft core while styrene-acrylonitrile (SAN) copolymer works as the rigid shell. Herein, The PBA core content in ASA was varied from 0 to 80wt %, and its effect on the physiochemical properties was investigated. It was found that the hard shell of ASA was miscible with PVC matrix, providing good interfacial adhesion between ASA and PVC. Increasing the soft PBA content considerably improved the room-temperature impact toughness, and a sharp brittle-ductile transition (BDT) as a function of PBA content was observed. However, as the testing temperature decreased to 0 and -30 degrees C, the toughening effect became limited, and the BDT first shifted to high PBA content region and finally disappeared. It was suggested that whether the toughening effect can be achieved depended on the thickness of hard shell and the relaxation behavior of PBA core. Albeit the loss in rigidity was accompanied, the accomplished toughening effect was not on the sacrifice of heat distortion temperature. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46839.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available