外场作用下聚合物滞后生热效应

曾广胜; 瞿金平; 刘跃军; 许超; 徐成

doi:10.7498/aps.60.016401

摘要

为了研究振动参数对聚合物黏弹性能及塑化成型过程的影响,深入分析了振动场的作用机理,揭示了相位角与滞后生热率之间的关系,得出了振动场作用下聚合物塑化成型速率表达式,最后通过聚对苯二甲酸乙二醇酯(PET)动态毛细管挤出以及多维振动塑化成型设备进行实例计算和实验研究,实验结果和理论计算值符合得很好,并得出结论: PET塑化速率随振动频率的增加呈先增加后减小的趋势,当激振频率趋向于材料固有频率时(振动频率约为15 Hz时),PET塑化速率达到最大值,当振幅为6 MPa时,其值约为22 g/min,为相同振幅下,频

关键词:

Abstract

A thorough analysis of the mechanism of vibrational force field on polymer processing was carried out to investigate the effect of vibration parameters on polymer viscoelasticity and plastic forming processing. The relationship between phase angle and lagging heat generation rate as well as the expression of polymer plasticizing rate under vibrational force field was obtained. To verify the theory, PET was adopted for example calculation and in expriments with dynamic capillary rheometer and mlti-dimentional vibration induced plastic forming equimpment. The result from calculation agrees well with that from experiment. Besides, it can be concluded that the plasticizing rate of PET increases at first and decreases afterwards with increasing vibration frequency. It reaches the peak at vibration frequency equivalent to the natural frequency of PET of about 15 Hz. The value remains at 22 g/min with the natural vibration frequency when the vibration amplitude is 6 MPa, being 1.75 fold that with vibration frequency of 10 Hz. Therefore, the plasticizing rate of polymer can be significantly improved by increasing the vibration amplitude. The exploration in this paper supplies reliable thoeretical reference for novel polymer low temperature moulding technique and equipments.

Keywords:

作者及机构信息

(1)湖南工业大学包装新材料与技术重点实验室,株洲 412007; (2)湖南工业大学包装新材料与技术重点实验室,株洲 412007;华南理工大学聚合物新型成型装备国家工程研究中心,广州 510640;华南理工大学聚合物成型加工工程教育部重点实验室,广州 510640; (3)华南理工大学聚合物新型成型装备国家工程研究中心,广州 510640;华南理工大学聚合物成型加工工程教育部重点实验室,广州 510640

基金项目: 国家自然科学基金(批准号:10472034,1090351,10672197),湖南省自然科学基金(批准号:07JJ1001,09JJ6083),国家"十一五"科技支撑计划(批准号:2007BAE45B03),湖南省教育厅科技项目(批准号:08C278)和湖南省普通高校产业化培训项目(批准号:09CY016) 资助的课题.

Authors and contacts

(1)Key Laboratory of New Materials and Technology for Package, Hunan University of Technology, Zhuzhou 412008, China; (2)Key Laboratory of New Materials and Technology for Package, Hunan University of Technology, Zhuzhou 412008, China;National Engineering Research Center of Novel Equipment for Polymer Processing, Guangzhou 510640,China;The Key Laboratory of Polymer Processi; (3)National Engineering Research Center of Novel Equipment for Polymer Processing, Guangzhou 510640,China;The Key Laboratory of Polymer Processing Engineering, Ministry of Education, South China University of Technology, Guangzhou 510640, China

参考文献

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施引文献

[1]	Qu J P,Zeng G S 2006 Journal of Chemical Industry and Engineering 57 414(in Chinese) [瞿金平、曾广胜 2006 化工学报 57 414 ]
[2]	Zeng G S,Qu J P 2006 Journal of Chemical Industry and Engineering 57 424(in Chinese) [曾广胜、瞿金平2006 化工学报 57 424 ]
[3]	Zeng G S,Qu J P 2006 Chinese Journal of Materials Research 20 59(in Chinese) [曾广胜、瞿金平 2006 材料研究学报 20 59 ]
[4]	Zeng G S,Qu J P 2005 Journal of South China University of Technology(Natural Science Edition) 33 14 (in Chinese) [曾广胜、瞿金平 2005华南理工大学学报33 14 ]
[5]	Qu J P 2005 Theory and Technic of Polymer Dynamic Plastication Process (Beijing: Since Press)(in Chinese)[瞿金平 2005聚合物动态塑化成型加工理论与技术(北京:科学出版社)]
[6]	Qu J P, Zeng G S 2006 Journal of Applied Polymer Science 100 3860
[7]	Zeng G S,Qu J P 2007 Journal of Applied Polymer Science 104 2504
[8]	Zeng G S,Qu J P 2007 Journal of Applied Polymer Science 106 1152
[9]	Zeng G S,Qu J P 2008 Materials Science and Technology 16 235 (in Chinese) [曾广胜、瞿金平 2008 材材料科学与工艺16 235 ]
[10]	Zeng G S,Qu J P,He H Z,Jin G 2007 Journal of Chemical Industry and Engineering 58 3158 (in Chinese) [曾广胜、瞿金平、何和智、晋刚2007 化工学报 58 3158 ]
[11]	Zeng G S,Qu J P,He H Z,Jin G 2007 Journal of Chemical Industry and Engineering 58 3164 (in Chinese) [曾广胜、瞿金平、何和智、晋刚2007 化工学报 58 3164 ]
[12]	Ma LX, Zhang F L,Cui Q, He Y, Zhang P 2005 China Elastomerics 15 44 (in Chinese) [马连湘、张方良、崔琪、何燕、张萍2005 弹性体 15 44]
[13]	Xie F X, Xin Q Y, Gu R M 2007 China Synthetic Rubber Industry 30 306 (in chinese) [谢富霞、辛泉友、顾润民 2007 合成橡胶工业 30 306]
[14]	He Y, Ma L X, Huang S Y 2007 Tyre Industry 27 451(in Chinese) [何燕、马连湘、黄素逸 2007轮胎工业 27 451]
[15]	Xu Z M, Huang P 2006 Acta Phys. Sin.55 2427[许中明、黄平 2006 55 2427]

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