Antistatic TPU/PA6 Blends Prepared by Blending Modification

Abstract:

This research is aimed to achieve TPU-based TPU/PA6 blends which is equipped with both considerable mechanical properties and antistatic performance by blending with different portions of compatibilizer EVA-g-MAH and conductive carbon black with twin screw extruder. Results indicate that, the EVA-g-MAH not only improves the blend’s compatibility but also the mechanical properties. DSC results show that the gap between the glass transition temperatures of TPU and PA6 got shorten after adding EVA-g-MAH. The 70TPU/30PA6/15 EVA-g-MAH has better mechanical properties which are congruent with the findings of the SEM, and when this ratio was blended with different portions of conductive carbon black, their mechanical properties almost retain the same, but the blends obtain the antistatic property eventually. While lowering the production costs, the industrial application scope of TPU is widened especially the fields which have high requirement for antistatic property, such as electronic, medical, automotive, packaging, etc.

• Periodical: Applied Mechanics and Materials (Volume 159)
• Pages: 69-73
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.159.69
• Online since: March 2012
• Authors: Ke Juan Chen, Tai Hua He, Tao Wang
• Keywords: Antistatic, Blend, Mechanical Property, PA6, TPU

References

[1] Hsien-Tang Chiu, Chao-Yin Chuang, The Mechanical and Rheological behavior of the PA/TPU Blend with POE-g-MA Modifier, J. Appl Polym Sci, 115(2010) 1278-1282

DOI: 10.1002/app.30944

[2] Quay J.R., Sun Z., Blackwell J., et al., The hard segment unit cell for MDI-BDO-based Polyurethane elastomers, J. Polymer,31(1990) 1003-1008.

DOI: 10.1016/0032-3861(90)90244-s

[3] YE Cheng-bing, ZHANG Jun,ZHOU Sheng-zhong, Study on the Modification of Thermoplastic Poly(vinyl chloride) Blends, J. China Plastics,18(2004) 48-52.

[4] ZHANG Shu-ling, WANG Gui-bin, JIANG Zhen-hua, Study of rheological properties of PA1010/TPU blends, J. China Elastomerics, 15(2008) 40-43.

[5] Lianlong Hou, Hongzhi Liu, Guisheng Yang, Preparation and Characterization of Thermoplastic Polyurethane Elastomer and Polyamide 6 Blends by In Situ Anionic Ring-Opening Polymerization of Caprolactam, J. POLYM. ENG. SCI., 48(2006) 1196-1203.

DOI: 10.1002/pen.20589

[6] MA Xiao-feng, ZHU Guo-qiang, LI Xin-fa, Study of Mechanical Properties of PA6/TPU Blend, J.China Plastics Industry, 36(2008) 19-21.

[7] Wanli Li, Jinli Liu, Chaowei Hao, et al., Interaction of Thermoplastic Polyurethane With Polyamide 1212 and Its Influence on the Thermal and Mechanical Properties of TPU/PA1212 Blends, J. POLYM. ENG. SCI., 48(2008) 249-256.

DOI: 10.1002/pen.20853

[8] PESETSKII,S.S., FEDOROV,V.D., JURKOWSKI, et al., Blends of Thermoplastic Polyurethanes and Polyamide 12: Structure, Molecular Interaction, Relaxation, and Mechanical Properties, J. Journal of Applied Polymer Science. 1999.

DOI: 10.1002/(sici)1097-4628(19991031)74:5<1054::aid-app3>3.0.co;2-m

[9] Bitiner Gerherd (DE). Antistatic or electrically conductive Thermoplastic Polyurethanes: process for their preparation and their use [P], U.S. Patent 4,526,952, (1985)

[10] Fei Feng He, Yamamoto, Conductive Polyurethane Foam and its Manufacture [P], U.S. Patent 55,914,821, (1997)

[11] ZHU Yu-lin, WANG Shu-rong, Quaternary Ammonium Antistatic agent for Polyurethane, J. Polyurethane Industry, 4(1994) 11-15.

[12] ZHAO Ze-qin, Technology and Applications of Conductive and Antistatic Polymer Materials, first ed., China Textile Press, Beijing, (2006)