Synthesis, Characterization and Application of Environment-friendly Superabsorbent Plymers

WEI Xian; LI Pengfei; CHEN Ruihuan; LIU Yun; WANG Ping; YAO Rongjiang; YANG Jinsong; DONG Yuanhua

doi:10.13961/j.cnki.stbctb.2018.05.047

您当前的位置：

首页 >

文章列表页 >

Synthesis, Characterization and Application of Environment-friendly Superabsorbent Plymers

- Synthesis, Characterization and Application of Environment-friendly Superabsorbent Plymers
- Bulletin of Soiland Water Conservation Vol. 38, Issue 5, Pages: 293-299(2018)
- 作者机构：
  
  1. 中国科学院南京土壤研究所土壤环境与污染修复重点实验室,江苏,南京,210008
  2. 兰州交通大学化学与生物工程学院,甘肃,兰州,730070
  3. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.05.047
  CLC： S156.4;S157.9
- Published：2018
- 稿件说明：
移动端阅览
WEI Xian, LI Pengfei, CHEN Ruihuan, et al. Synthesis, Characterization and Application of Environment-friendly Superabsorbent Plymers[J]. Bulletin of Soiland Water Conservation, 2018, 38(5): 293-299.
DOI：

WEI Xian, LI Pengfei, CHEN Ruihuan, et al. Synthesis, Characterization and Application of Environment-friendly Superabsorbent Plymers[J]. Bulletin of Soiland Water Conservation, 2018, 38(5): 293-299. DOI： 10.13961/j.cnki.stbctb.2018.05.047.

摘要

[目的

]

以过硫酸铵（APS）为引发剂，N，N’-亚甲基双丙烯酰胺（NMBA）为交联剂，通过壳聚糖（CTS）和瓜尔胶（GG）接枝丙烯酸（AA）制备新型高耐盐保水剂，探究其合成过程最佳反应条件，研究其对盐碱地土壤保水保肥的效果。[方法

]

利用水溶液聚合法制备保水剂，通过单因素试验（AA中和度、GG投加量、APS用量、NMBA用量）研究保水剂的最佳合成条件，用FTIR和SEM对产物进行表征，并对产物的环境适应性（盐溶液类型及浓度、溶液pH值）及其加入盐碱土后对于土壤水肥保持的效果进行研究。[结果

]

当AA中和度为85%，GG投加量为0.2 g，APS与NMBA用量分别为单体总量的0.3%和0.02%时，该保水剂在去离子水和0.9% NaCl溶液中的吸收效率分别为1 128 g/g和185 g/g，此时产物的吸收效果达到最佳。红外光谱与电镜扫描分析结果表明CTS，GG和AA都参与了聚合反应，产物具有较好的空间网络结构与表面形态。该保水剂在溶液pH值为4~10的范围内吸收效率较稳定，但是当溶液中存在阳离子时其吸收效率明显降低，阳离子类型对其吸收效率的抑制作用从大到小依次为：Mg

> Ca

> Na

> K

。当保水剂加入到盐碱土时，既能提高土壤持水能力又能抑制土壤氮肥和钾肥的淋溶损失。[结论

]

本研究自制保水剂具有较好的耐盐效果，环境适应性强，单体环境友好，将其加入盐碱土壤时能够有效降低土壤水肥的淋溶损失。

Abstract

[Objective] A new type of high salt-tolerant superabsorbent polymer was prepared by grafting acrylic acid (AA) with chitosan (CTS) and guar gum (GG)

with ammonium persulfate (APS) as initiator and N

N'-methylene bisacrylamide (NMBA) as crosslinker. The optimal reaction conditions in the synthetic process were investigated to study the effect of the superabsorbent polymer on the water and nutrient retention in the saline alkali soil.[Methods] The superabsorbent polymer was prepared by aqueous solution polymerization and the optimized reaction conditions were studied based on single factor experiment (degree of neutralization of AA

addition of GG

APS and NMBA). The molecular structure and characteristics of the product were confirmed by fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The absorbent efficiency of product was studied in different saline solutions with different pH value. In addition

the effect of superabsorbent polymer in reforming saline alkali soil was studied by leaching test.[Results] The absorbent efficiency of the product reached the highest when the degree of neutralization of AA was 85%

the amount of GG was 0.2 g

the addition of APS and NMBA were 0.3% and 0.02% of the total monomer

respectively. Under this condition

the absorbent efficiency of product were 1 128 and 185 g/g in deionized water and 0.9% NaCl solution

respectively. The results of FTIR and SEM showed that CTS

GG and AA were involved in the polymerization

and the products had a good spatial network structure and surface morphology. The superabsorbent polymer had a relatively stable absorbent efficiency in the pH value range of 4~10. However

the absorbent efficiency decreased obviously when there were the co-existing cation in the solution

and inhibitory effect of cations on the absorption efficiency was ranked as:Mg2+ > Ca2+ > Na+ > K+. And the superabsorbent polymer could not only improve the water holding capacity of the soil but also inhibit the leaching loss of nitrogen and potassium fertilizer.[Conclusion] The superabsorbent polymer prepared in this experiment has better salt tolerant effect and wide range of solution pH value adaptability. The synthetic monomers of the superabsorbent polymer are environmentally friendly

and can effectively reduce the leaching loss of the soil water and fertilizer in the saline-alkali soil.

关键词

Keywords

references

谢修银,宛方,张艳,等.保水剂的研发现状与展望[J].化学与生物工程,2013,30(4):8-13.

Chen Yu, Zhang Yong, Wang Fengju, et al. Preparation of porous carboxymethyl chitosan grafted poly(acrylic acid) superabsorbent by solvent precipitation and its application as a hemostatic wound dressing[J]. Materials Science and Engineering(C),2016,63:18-29.

Paiva H, Esteves L P, Cachim P B, et al. Rheology and hardened properties of single-coat render mortars with different types of water retaining agents[J]. Construction and Building Materials, 2009,23(2):1141-1146.

Naz M Y, Sulaiman S A. Slow release coating remedy for nitrogen loss from conventional urea:A review[J]. Journal of Controlled Release, 2016,225:109-120.

Mukerabigwi J F, Lei Shaojun, Fan Lu, et al. Eco-friendly nano-hybrid superabsorbent composite from hydroxyethyl cellulose and diatomite[J]. RSC Advances, 2016,6(38):31607-31618.

Zhang Junping, Wang Qin, Wang Aiqin. Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites[J]. Carbohydrate Polymers, 2007,68(2):367-374.

Gao Deyu, Heimann R B, Lerchner J, et al. Development of a novel moisture sensor based on superabsorbent poly(acrylamide)-montmorillonite composite hydrogels[J]. Journal of materials science, 2001,36(18):4567-4571.

卢静琼,李银辉,胡灯,等.耐盐型聚天冬氨酸/壳聚糖互穿网络吸水树脂制备[J].化工新型材料,2016,44(4):53-56.

陈锋,龙家杰.酸性染料在瓜尔豆胶浆中的扩散性[J].印染,2015,41(9):11-14,24.

赵秀芳,宋国香,谢志远,等.我国盐碱土修复现状与特点[J].环境卫生工程,2017,25(4):96-99.

黄艳辉.内蒙古盐碱土中AM真菌多样性及提高宿主植物耐盐能力的研究[D].陕西杨凌:西北农林科技大学,2007.

齐智娟.河套灌区盐碱地玉米膜下滴灌土壤水盐热运移规律及模拟研究[D].陕西杨凌:中国科学院教育部水土保持与生态环境研究中心,2016.

纪永福,蔺海明,杨自辉,等.夏季覆盖盐碱地表面对土壤盐分和水分的影响[J].干旱区研究,2007,24(3):375-381.

周燕,刘宝林,韩宝三,杨晓昀,王欣,等.多聚磷酸钠/壳聚糖多孔微载体的制备研究[J].中国生物医学工程学报,2010,29(4):636-640.

王雪郦,邱树毅.含磷农用保水剂的制备及性能研究[J].中国农学通报,2011,27(7):284-289.

杜建军,苟春林,崔英德,等.保水剂对氮肥氨挥发和氮磷钾养分淋溶损失的影响[J].农业环境科学学报,2007,26(4):1296-1301.

陈瑞环,王萍,刘云,等.耐盐保水剂的合成及其性能[J].化工进展,2015,34(6):1750-1754,1798.

徐小兰,马青斌,郑旺斌,田映良,王天乾.生物质可降解保水剂的制备工艺研究[J].广州化工,2016,44(3):90-92.

张慧瑛,樊丹阳,卢妹妹,等.利用小麦秸秆制备的保水剂性能研究[J].水土保持通报,2017,37(2):193-198.

张秀兰,栗印环,郝盼盼,等.淀粉接枝丙烯酸/沸石/粉煤灰保水剂的合成及性能研究[J].安徽农业科学,2011,39(1):3-5.

Chandrika K S V P, Anupama S, Abhishek R, et al. Novel cross linked guar gumgpoly(acrylate)porous superabsorbent hydrogels: Characterization and swelling behaviour in different environments[J]. Carbohydrate polymers, 2016,149:175-185.

Jing Zhanxin, Zhang Guangcheg, Sun Xiaofeng, et al. Preparation and adsorption properties of a novel superabsorbent based on multiwalled carbon nanotubes-xylan composite and poly(methacrylic acid)for methylene blue from aqueous solution[J]. Polymer Composites,2014,35(8):1516-1528.

黄麟,叶建仁,盛江梅,等.6种保水剂吸水保水性能的比较[J].南京林业大学学报：自然科学版,2007,31(2):101-104.

马慧敏,陈亮,潘康兵,等.防磷固定剂对土壤有效性的影响[J].西南农业学报,2017,30(11): 2533-2536.

马征,姚海燕,张柏松,等.保水剂对粘质潮土团聚体分布、稳定性及玉米养分积累的影响.水土保持学报,2017,31(2):221-226.

刘陆涵,马妍,刘振海,等.三种环境材料对土壤水肥保持效应的影响研究[J].农业环境科学学报,2017,36(9):1811-1819.

任岩岩,武继承.保水剂对土壤性质及土壤微生物的影响研究进展[J].河南农业科学,2009,38(4):13-15.

Views

1096

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Drought and salt tolerance during seed germination of different provenances of Amygdalus pedunculata

Spatiotemporal changes and driving mechanisms of vegetation cover in Dongting Lake area based on kNDVI and structural equation model

Spatiotemporal evolution of productive-living-ecological space at county level of Qinling-Daba Mountains area under background of urban-rural integration

Impact of digital economy on value conversion efficiency of agricultural ecological products in Yangtze River economic belt

Soil-water characteristics and softening constitutive model of lime-stabilized loess

Related Author

Li Rong

Zhang Yan

Cao Qingxi

Wang Haiying

Zhao Xueqing

Chen Qian

Cao Zhenlin

Gao Rong

Related Institution

Shaanxi Academy of Forestry

Yuyang District Forestry and;Seedling Workstation

National Forest Germplasm Resources Bank for;Psammophytes in Yulin of Shaanxi Province

Long-term Observation and;Research Station for Maowusu Desert Ecosystem in Yulin of Shaanxi Province

⁰