Water Release Behavior of Raw Corn Straw/carboxymethyl Cellulose Composite Hydrogel

doi:10.11944/j.issn.1000-0518.2016.02.150234

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (2): 181-189.DOI: 10.11944/j.issn.1000-0518.2016.02.150234

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Water Release Behavior of Raw Corn Straw/carboxymethyl Cellulose Composite Hydrogel

ZHANG Feixiong^a,DANG Fengna^b,WU Jinfeng^b,HAN Yuqi^b,YU Xinghai^b,YUE Guoren^b,JIN Shuping^b^*()

^aBaiyin Industrial School,Baiyin,Gansu 730900,China
^bKey Laboratory of Hexi Corridor Resources Utilization of Gansu,College of Chemistry and Chemical Engineering,Hexi University,Zhangye,Gansu 734000,China

Received:2015-07-07 Accepted:2015-11-17 Published:2016-02-01 Online:2016-02-01
Contact: JIN Shuping
Supported by:
Supported by the National Natural Science Foundation of China(No.51263008), the Key (Key grant) Project of Chinese Ministry of Education(No.212181)

Abstract

Abstract:

Raw corn straw/carboxymethyl cellulose composite hydrogel(RCS/CMC) with the water content of 97.47% was prepared. The dependence of the modulus on the hydrogel compositions, the dependence of the degradation behavior in the buffer solution, mass loss behavior in soil, soil hydration and maize seed germination on the ratio of soil and CMC/RCS hydrogel were studied. The experimental results show that the soil moisture increases by 1.00%~1.61% compared with the control test, the degradation percentage of the hydrogel in the buffer solution containing cellulose enzyme at 37 ℃ after 4 days is about 80%, and the mass loss in soil is about 94% after 25 days. Though the average germination time extends apparently in the presence of hydrogel, the germination rate significantly increases, especially, for the processing in relative humidity of 18%, 20%, 23%, 26%, 28% and 30%, respectively, the maize seed germination is inhibited because of the water stress, but the germination rate is up to 97%.

Key words: raw corn straw, carboxymethyl cellulose, degradation, modulus, seed germination

ZHANG Feixiong, DANG Fengna, WU Jinfeng, HAN Yuqi, YU Xinghai, YUE Guoren, JIN Shuping. Water Release Behavior of Raw Corn Straw/carboxymethyl Cellulose Composite Hydrogel[J]. Chinese Journal of Applied Chemistry, 2016, 33(2): 181-189.

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Water Release Behavior of Raw Corn Straw/carboxymethyl Cellulose Composite Hydrogel

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