Title:
HIGH STEREOCOMPLEX POLYLACTIC ACID MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/043065
Kind Code:
A1
Abstract:
Disclosed are a high stereocomplex polylactic acid material and preparation method therefor. The temperature of a melting peak of the polylactic acid material is measured to be 210°C or more by a differential scanning calorimeter. A WAXD one-dimensional map of the polylactic acid material has crystal face diffraction peaks of stereo crystals at positions where 2θ is 12°, 21°, and 24°. The content of stereo crystals of the polylactic acid material is 36% or more. The method for preparing the high stereocomplex polylactic acid material comprises the following steps: step 1, respectively irradiating poly-L-lactic acid and poly-D-lactic acid; and step 2, blending the irradiated poly-L-lactic acid and the irradiated poly-D-lactic acid with non-irradiated poly-L-lactic acid and non-irradiated poly-D-lactic acid. A high stereocomplex polylactic acid material which features good heat resistance and high stereo crystal content and can be formed at one time is prepared by the preparation method; in addition, the preparation method is simple and easy to control, low in costs and environmentally friendly, and can implement large-scale industrial production.
Inventors:
ZHANG XIUQIN (CN)
LI XIAOLU (CN)
WANG RUI (CN)
YANG BO (CN)
QI YUE (CN)
DONG ZHENFENG (CN)
LI XIAOLU (CN)
WANG RUI (CN)
YANG BO (CN)
QI YUE (CN)
DONG ZHENFENG (CN)
Application Number:
PCT/CN2019/102628
Publication Date:
March 05, 2020
Filing Date:
August 26, 2019
Export Citation:
Assignee:
BEIJING INST FASHION TECH (CN)
International Classes:
C08L67/04; C08J3/28
Foreign References:
| CN109337308A | 2019-02-15 | |||
| CN105463624A | 2016-04-06 | |||
| CN1898327A | 2007-01-17 | |||
| CN104018294A | 2014-09-03 | |||
| CN105401259A | 2016-03-16 | |||
| JP2010090239A | 2010-04-22 | |||
| CN102911392A | 2013-02-06 |
Other References:
TRAN, M. Q. ET AL.: "Properties of Radiation-Induced Crosslinking Stereocomplexes Derived From Poly(L-Lactide) and Different Poly(D-Lactide", POLYMER ENGINEERING AND SCIENCE, vol. 5, no. 49, 20 March 2009 (2009-03-20), pages 970 - 976, XP055696976, ISSN: 0032-3888
TRAN, M. Q. ET AL.: "Radiation-induced Crosslinking and Biodegradability of Poly(lactide) Stereocomplex", TRANSACTIONS OF THE MRS- JAPAN 2008, 12 February 2015 (2015-02-12), pages 1 - 4
TRAN, M. Q. ET AL.: "Properties of a Poly(L-lactic acid)/Poly(D-lactic acid) Stereocomplex and the Stereocomplex Crosslinked with Triallyl Isocyanurate by Irradiation", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 110, 18 August 2008 (2008-08-18), pages 2358 - 2365, XP055696974, ISSN: 0021-8995
TRAN, M. Q. ET AL.: "Stereocomplexation of low molecular weight poly(L-lactic acid) and high molecular weight poly(D-lactic acid), radiation crosslinking PLLA/PDLA stereocomplexes and their characterization", RADIATION PHYSICS AND CHEMISTRY, vol. 83, 13 October 2012 (2012-10-13), pages 105 - 110, XP055696972, ISSN: 0969-806X
CHEN, LU ET AL.: "PLLA/PDL (CRYSTALLIZATION STRUCTURES AND THERMAL PROPERTIES OF HIGH HEAT- RESISTANCE PLLA/PDLA BLENDS", ACTA POLYMERICA SINICA, vol. 3, no. 8, 20 August 2013 (2013-08-20), pages 1006 - 1012, ISSN: 1000-3304
MA, PIMING ET AL.: "Superior Performance of Fully Biobased Poly(lactide) via Stereocomplexation-Induced Phase Separation: Structure versus Property", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, vol. 3, 27 May 2015 (2015-05-27), pages 1470 - 1478, XP055696967, ISSN: 2168-0485
BAO, YUIYING ET AL.: "Stereocomplex formation of high-molecular-weight polylactide: A low temperature approach", POLYMER, vol. 53, 26 September 2012 (2012-09-26), pages 5449 - 5454, XP028956709, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2012.09.043
TRAN, M. Q. ET AL.: "The radiation crosslinked films based on PLLA/PDLA stereocomplex after TAIC absorption in supercritical carbon dioxide", CARBOHYDRATE POLYMERS, vol. 72, 25 October 2007 (2007-10-25), pages 673 - 681, XP022512209, ISSN: 0144-8617, DOI: 10.1016/j.carbpol.2007.10.010
TRAN, M. Q. ET AL.: "Radiation-induced Crosslinking and Biodegradability of Poly(lactide) Stereocomplex", TRANSACTIONS OF THE MRS- JAPAN 2008, 12 February 2015 (2015-02-12), pages 1 - 4
TRAN, M. Q. ET AL.: "Properties of a Poly(L-lactic acid)/Poly(D-lactic acid) Stereocomplex and the Stereocomplex Crosslinked with Triallyl Isocyanurate by Irradiation", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 110, 18 August 2008 (2008-08-18), pages 2358 - 2365, XP055696974, ISSN: 0021-8995
TRAN, M. Q. ET AL.: "Stereocomplexation of low molecular weight poly(L-lactic acid) and high molecular weight poly(D-lactic acid), radiation crosslinking PLLA/PDLA stereocomplexes and their characterization", RADIATION PHYSICS AND CHEMISTRY, vol. 83, 13 October 2012 (2012-10-13), pages 105 - 110, XP055696972, ISSN: 0969-806X
CHEN, LU ET AL.: "PLLA/PDL (CRYSTALLIZATION STRUCTURES AND THERMAL PROPERTIES OF HIGH HEAT- RESISTANCE PLLA/PDLA BLENDS", ACTA POLYMERICA SINICA, vol. 3, no. 8, 20 August 2013 (2013-08-20), pages 1006 - 1012, ISSN: 1000-3304
MA, PIMING ET AL.: "Superior Performance of Fully Biobased Poly(lactide) via Stereocomplexation-Induced Phase Separation: Structure versus Property", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, vol. 3, 27 May 2015 (2015-05-27), pages 1470 - 1478, XP055696967, ISSN: 2168-0485
BAO, YUIYING ET AL.: "Stereocomplex formation of high-molecular-weight polylactide: A low temperature approach", POLYMER, vol. 53, 26 September 2012 (2012-09-26), pages 5449 - 5454, XP028956709, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2012.09.043
TRAN, M. Q. ET AL.: "The radiation crosslinked films based on PLLA/PDLA stereocomplex after TAIC absorption in supercritical carbon dioxide", CARBOHYDRATE POLYMERS, vol. 72, 25 October 2007 (2007-10-25), pages 673 - 681, XP022512209, ISSN: 0144-8617, DOI: 10.1016/j.carbpol.2007.10.010
Attorney, Agent or Firm:
BEIJING CONCEPT INTELLECTUAL PROPERTY AGENCY (CN)
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