NANOCOMPOSITE MATERIALS FROM LATEX AND CELLULOSE WHISKERS
NANOCOMPOSITE MATERIALS FROM LATEX AND CELLULOSE WHISKERS
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DOI：
10.1002/pat.1995.220060514
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发表时间：
1995-05-01
影响因子：
3.4
通讯作者：
GAUTHIER, C
中科院分区：
文献类型：
--
作者：
FAVIER, V;CANOVA, GR;GAUTHIER, C
通过浇铸乳胶和微纤维的水悬浮液的混合物来加工复合材料。这些微纤维或晶须是从海洋动物中提取的，是纤维素的单晶体，长径比约为 100，平均直径为 20 nm。已发现，当晶须含量为 6% (w/w) 时，聚合物基质的橡胶态机械性能（剪切模量）增加两个数量级以上。基于不同类型的力学模型讨论了这种非常大的影响，得出的结论是这些晶须形成了刚性网络，可能通过氢键连接。假设该网络的形成受渗透机制控制。
Composite materials were processed by casting a mixture of aqueous suspensions of latex and microfibrils. These microfibrils, or whiskers, are extracted from a sea animal and are monocrystals of cellulose, with an aspect ratio around 100 and an average diameter of 20 nm. If has been found that the mechanical properties (shear modulus) are increased by more than two orders of magnitude in the rubbery state of the polymeric matrix, when the whisker content was 6% (w/w). This very large effect is discussed on the basis of different types of mechanical models and it is concluded that these whiskers form a rigid network, probably linked by hydrogen bonds. The formation of this network is assumed to be governed by a percolation mechanism.