XRD pattern of chitin based polyurethane bio-nanocomposites

被引：50

作者：

Zia, Khalid Mahmood ^{[1
]}

Zuber, Mohammad ^{[1
]}

Barikani, Mehdi ^{[2
]}

Jabbar, Abdul ^{[3
]}

Khosa, Muhammad Kaleem ^{[3
]}

机构：

[1] GC Univ, Dept Ind Chem, Faisalabad 38030, Pakistan

[2] Iran Polymers & Petrochem Inst, Dept Polyurethane & Nanopolymers, Tehran, Iran

[3] GC Univ, Dept Chem, Faisalabad 38030, Pakistan

来源：

CARBOHYDRATE POLYMERS | 2010年 / 80卷 / 02期

关键词：

Chitin; Polyurethane; Bio-nanocomposites; Bentonite clay; XRD; STRUCTURE-PROPERTY RELATIONSHIP; SILICATE NANOCOMPOSITES; CHITOSAN;

D O I：

10.1016/j.carbpol.2009.12.017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Chitin based polyurethane bio-nanocomposites (PUBNC) were prepared by emulsion polymerization. The existence of the intercalated clay by polyurethane (PU) in the hybrid was confirmed using X-ray diffraction (XRD), dynamic mechanical measurements and optical microscope (OM) techniques. The values of enthalpies changes (Delta H) associated with different bentonite nanoclay contents are much consistent with the crystalline pattern of the synthesized PUBNC samples. These results revealed that pure silicate disappear in PU/bentonite nanoclay hybrid and a set of new peaks appears corresponding to the basal spacing of PU/bentonite clay bio-nanocomposites. The values of tan delta versus temperature recorded using dynamic mechanical measurements were also in accord with crystalline pattern of the PUBNC samples. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：539 / 543

页数：5

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