Organic montmorillonite(OMMT) was prepared from sodium montmorillonite(Na-MMT) and octadecyltrimethyl ammonium chloride(OTAC).Chloroprene rubber/organic montmorillonite (CR/OMMT) nanocomposites were prepared by mixing OMMT with chloroprene rubber (CR).The structure and thermal stability of the composites were analyzed by X-ray diffraction analyzer and thermogravimetric analyzer,and the effect of OMMT content on the properties of the composites was studied.The results showed that OTAC entered the Na-MMT layer and the layer spacing changed from 1.62nm to 2.19nm.With the increase of the dosage of OMMT,the hardness of the composites increased,the rebound rate declined,the smoke density level reduced,the limit oxygen index increased,tensile strength and tear strength reached a maximum of 22.5MPa and 33.6kN/m at 9 and 12 parts respectively.OMMT improved the physical and mechanical properties and thermal stability of the composites,and had certain smoke suppression and flame retardant effects.
Zhao Xiaoya, Sun Huijuan, Li Baochai, Li Lixia, Liu Yanbin
. Research on the performance of CR/OMMT nanocomposite[J]. New Chemical Materials, 2020
, 48(12)
: 73
-76
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.018
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