Effect of modified calcium carbonate on the thermal and mechanical properties of biodegradable poly(L-lactic acid)

Y.-H. Cai; Y.-H. Zhang; L.-S. Zhao

doi:10.14314/polimery.2015.095

Published : 2015-02-28

Vol. 60 No. 2 (2015)

Effect of modified calcium carbonate on the thermal and mechanical properties of biodegradable poly(L-lactic acid)

Y.-H. Cai Y.-H. Zhang L.-S. Zhao

DOI: https://doi.org/10.14314/polimery.2015.095

Abstract

Modified calcite CaCO3 (M-CaCO3) was synthesized from calcium nitrate, sodium carbonate, ethylene diamine tetraacetic acid and sodium dodecyl sulfate. Then, poly(L-lactic acid) (PLLA)/ M-CaCO3 composites were fabricated using melt blending and hot-press forming technologies. The effect of M-CaCO3 on the thermal and mechanical performance of PLLA was investigated. The results showed that the crystallization temperature and M-CaCO3 content significantly affected the crystallization of PLLA but the effect of M-CaCO3 on the crystallization of PLLA was very complicated. Compared to neat PLLA, 1 % M-CaCO3 decreased the t1/2 from 3999.4 s to 342.7 s at 100 °C. The melt index measurements indicated that a small amount of M-CaCO3 could block the fluidity of PLLA. However, the addition of a high content M-CaCO3 increased the fluidity of PLLA. The results of tensile strengths and elongation at break of PLLA/M-CaCO3 composites showed that both M-CaCO3 content and defective modification CaCO3 affected the mechanical performance of the PLLA/M-CaCO 3composites.

Keywords

poly(L-lactic acid) ; calcium carbonate ; thermal behavior ; mechanical performance poli(kwas L-mlekowy) ; węglan wapnia ; właściwości termiczne ; właściwości mechaniczne

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Cai, Y.-H., Zhang, Y.-H., & Zhao, L.-S. (2015). Effect of modified calcium carbonate on the thermal and mechanical properties of biodegradable poly(L-lactic acid). Polimery, 60(2), 95-99. https://doi.org/10.14314/polimery.2015.095

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Crossref

[2] Wang L., Ling X.L., Guo Z.X. et al.: Chem. J. Chin. Univ.-Chin. 2012, 33, 2789.
Crossref

[3] Liang J.Z.: J. Polym. Eng. 2012, 32, 401.
Crossref 2012-0027

[4] Mao B.G., Chu D.Q., Wang A.X. et al.: Eur. J. Inorg. Chem. 2013, 35, 5958.
Crossref

[5] Zebarjad S.M., Golmakaniyoon S.: J. Vinyl Addit. Technol. 2013, 19, 271.
Crossref

[6] Zhang Y., Zhang L., Liu H. et al.: J. Macromol. Sci., Part B. 2014, 53, 13.
Crossref. 2012.759019

[7] Furukawa T., Sato H., Murakami R. et al.: Polymer 2006, 47, 3132.
Crossref

[8] Dell’Erba R., Groeninckx G., Maglio G., et al.: Polymer 2001, 42, 7831.
Crossref

[9] Chen H.M., Wang Y.P., Chen J. et al.: Polym. Degrad. Stab. 2013, 98, 2672.
Crossref. 2013.09.033

[10] Liang J.Z., Duan D.R., Tang C.Y. et al.: Polym.Test. 2013, 32, 617.
Crossref

[11] LiW.X., Xu Z.W., Chen L. et al.: Chem. Eng. J. 2014, 237, 291.
Crossref

[12] Cai Y.H.: J. Chem. Soc. Pak. 2013, 35, 1174.

[13] Dai J.J., Zhang Y.: Modern Chem. Ind. 2011, 31, 228.

[14] Cai Y.H., Peng R.F., Ma D.M. et al.: Sci. Technol. Chem. Ind. 2008, 16, 7.

[15] Cai Y.H.: “Studies on Synthesis of Novel Bisamides Nucleating Agents and Effect on Crystallization of Poly(L-lactic acid)”, Shanghai University 2011, p. 37.

[16] Shi N., Cai J., Dou Q.: Adv. Mater. Res. 2013, 602, 768.

[17] Nekhamanurak B., Patanathabutr P., Hongsriphan N.: Plast. Rubber Compos. 2012, 41, 175.
Crossref

[18] Guan J.F., Chen Y.,Wu H.D. et al.: Non-Metallic Mines. 2011, 34, 26.

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Y.-H. Cai caiyh651@aliyun.com

Affiliation
Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University od Arts and Sciences, Yongchuan, Chongqing-402160, P.R. China

Y.-H. Zhang

Affiliation
Chongqing University of Arts and Sciences, School of Materials and Chemical Engineering, Yongchuan, Chongqing-402160, P.R. China

L.-S. Zhao

Affiliation
Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Yongchuan, Chongqing-402160, P.R. China