研究了复杂物理场作用下恒温不可压缩熔体注射充模取向-形态关系模型理论.针对恒温不可压缩熔体缠结大分子链单体在注塑充模过程中的无轨形变特性,建立了以等效末端距矢量(end-to-end vector,ETEV)为核心的聚合物充模流动诱导取向物理模型;基于不可逆热力学与连续介质力学理论,研究得出了与胡克定律具有类似形式的缠结大分子链单体取向形变模型,进而得出了恒温不可压缩聚合物充模取向应力-形态关系线弹性理论模型;研究了聚合物充模取向的高弹形变特性,引入Langevin模型以表征大分子链单体相关参量与微元体积之间的定量关系,得出了理论上等价、适配性更高的聚合物充模取向应力-形态关系高弹性理论模型;研究了相关理论模型的结构特点与物理性态,并与经典K-BKZ模型进行了比较,说明了该模型对表征相关聚合物充模取向工程问题具有较好的适配性与科学性.
参考文献
[1] | Xuehong Lu;Lau Soo Khim .A statistical experimental study of the injection molding of optical lenses[J].Journal of Materials Processing Technology,2001(1/3):189-195. |
[2] | Wang TH;Young WB .Study on residual stresses of thin-walled injection molding[J].European Polymer Journal,2005(10):2511-2517. |
[3] | Pantani R;Sorrentino A;Speranza V;Titomanlio G .Molecular orientation in injection molding: experiments and analysis[J].Rheologica Acta: An International Journal of Rheology,2004(2):109-118. |
[4] | Yong Hoon Lee;lSeok Won Lee;Jae Ryoun Youn;Kwansoo Chung;Tae Jin Kang .Characterization of fiber orientation in short fiber reinforced composites with an image processing technique[J].Materials research innovations,2002(2):65-72. |
[5] | Kwon K;Isayev AI;Kim KH .Toward a viscoelastic modeling of anisotropic shrinkage in injection molding of amorphous polymers[J].Journal of Applied Polymer Science,2005(5):2300-2313. |
[6] | Nam Hyung Kim;Avraam i. Isayev .Birefringence in injection-Compression Molding of Amorphous Polymers: Simulation and Experiment[J].Polymer engineering and science,2013(8):1786-1808. |
[7] | Jang Min Park;Seok Jae Jeong;Seong Jin Park .Flake Orientation in Injection Molding of Pigmented Thermoplastics[J].Journal of manufacturing science and engineering,2012(1):014501-1-014501-4. |
[8] | Martin Kroon .An 8-chain Model for Rubber-like Materials Accounting for Non-affine Chain Deformations and Topological Constraints[J].Journal of Elasticity,2011(2):99-116. |
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%