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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chen, Xu Dong Wang, Jia Sheng Shen, Jia Rui |
| Copyright Year | 2006 |
| Abstract | The shell thickness of methyl methacrylate-butadiene-styrene (MBS) graft copolymer with a core–shell structure is found to be the most important factor in the toughening of rigid polyvinyl chloride (PVC). When the total shell thickness is too thin, the shell layer is simply unable to fully protect and cover the inner rubbery core, and these MBS particles tend to connect with one another through the partially exposed core, which leads to the aggregation of MBS in PVC and results in the poor toughening efficiency of MBS. However, when the total shell thickness is too thick, the shell thickness results in a hard core of these core–shell MBS particles and the loss of the rubbery nature required of an efficient impact modifier. Both the PMMA thickness and PS thickness in the shell structure have also significantly influenced the toughening efficiency of MBS; the thickness of PMMA and PS should be between the critical values of 4.2 nm ∼ 6.7 nm for PMMA and 7.4 nm∼9.8 nm for PS, and MBS displays high efficiency in toughening rigid PVC. γ $_{c}$/V $_{f}$ $^{2}$ and γ $_{y}$/V $_{f}$ $^{2}$, which are relative to the critical characteristic ligament of polymer materials, are used as the criterions of the brittle–ductile transition, and the brittle–ductile transitions of PVC and MBS with various shell structures was investigated in this paper. |
| Starting Page | 335 |
| Ending Page | 341 |
| Page Count | 7 |
| File Format | |
| ISSN | 10229760 |
| Journal | Journal of Polymer Research |
| Volume Number | 13 |
| Issue Number | 4 |
| e-ISSN | 15728935 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2006-06-10 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | brittle–ductile transition methyl methacrylate-butadiene-styrene graft copolymer polyvinyl chloride shell thickness toughness Characterization and Evaluation Materials Industrial Chemistry/Chemical Engineering Polymer Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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