采用亚磷酸三苯酯(TPPi)作为扩链剂熔融共混制备了聚对苯二甲酸丁二醇酯(PBT)/聚对苯二甲酸乙二醇酯(PET)合金.通过力学性能测试、毛细管流变仪、差示扫描量热法(DSC)研究了TPPi的用量对PBT/PET体系力学性能、流变行为及结晶性能的影响.结果表明,加入TPPi后PBT/PET体系的拉伸强度提高至60MPa,弯曲性能影响不大,而无缺口冲击强度从16 kJ/m<'2>大幅度提高至52 kJ/m<'2>,PBT/PET合金熔体表观黏度随TPPi用量的增加而上升,并且表现为黏度对剪切速率敏感,当TPPi用量为0.4%时共混体系结晶能力较强.
参考文献
| [1] | Jacques B.;Legras R.;Nield E.;Devaux J. .REACTIONS INDUCED BY TRIPHENYL PHOSPHITE ADDITION DURING MELT MIXING OF POLY(ETHYLENE TEREPHTHALATE)/POLY(BUTYLENE TEREPHTHALATE) BLENDS - INFLUENCE OF PHOSPHITE STRUCTURE AND POLYESTER CHAIN-END CONCENTRATION[J].Polymer: The International Journal for the Science and Technology of Polymers,1996(18):4085-4097. |
| [2] | Arkady D. Litmanovich;Nicolai A. Plate;Yaroslav V. Kudryavtsev .Rdeactions in polymer blends: interchain effects and theoretical problems[J].Progress in Polymer Science,2002(5):915-970. |
| [3] | 谢吉星,杨荣杰.亚磷酸三苯酯扩链制备高分子量聚乳酸[J].高分子材料科学与工程,2008(01):20-23. |
| [4] | Jacques B.;Legras R.;Nield E.;Devaux J. .INVESTIGATION ON MODEL MOLECULES OF THE REACTIONS INDUCED BY TRIPHENYL PHOSPHITE ADDITION DURING POLYESTER PROCESSING[J].Macromolecules,1996(9):3129-3138. |
| [5] | Vanbennekom ACM.;Bussink J.;Gaymans RJ.;Pluimers DT. .BLENDS OF AMIDE MODIFIED POLYBUTYLENE TEREPHTHALATE AND POLYCARBONATE - TRANSESTERIFICATION AND DEGRADATION[J].Polymer: The International Journal for the Science and Technology of Polymers,1997(12):3017-3024. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%