干旱区生态环境知识资源中心(Arid): PVAc共聚乳液结构特点对生态固沙性能的影响

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	PVAc共聚乳液结构特点对生态固沙性能的影响
其他题名	The Influence of Structure Characteristics of Polyvinyl Acetate Copolymer Emulsion on the Ecological Sand-Fixing
	李美兰 1; 龚伟 1; 王兴 2; 姚丹 2; 吕盼盼 2; 刘白玲 3
来源期刊	塑料
ISSN	1001-9456
出版年	2018
卷号	47 期号:6 页码:79-84
中文摘要	结合化学固沙与生物固沙,将2种不同结构的聚醋酸乙烯酯类共聚乳液用于高盐沙地固沙,系统研究了生态固沙的综合效果。研究结果表明,2种乳液用于高盐沙地生态固沙,当使用浓度为3.0%时,固沙强度均大于0.45 MPa,满足高盐沙地的固沙要求,并具有良好的抗热老化及抗冻融稳定性,而且,2种固沙乳液都能有效提高沙土的保水性能,促进沙土植物与微生物的生长。但与P(VAc-DBM-AA-AMPS)乳液相比,当使用浓度为3.0%时,P(VAc-DBM-AA-SSS)乳液的固沙强度可达到0. 88 MPa,具有更好的固沙效果,适用于风蚀量较大的高盐沙地的固沙;另外,不同分子结构的乳液对沙土微生物的生长也有不同的影响,这些性能的差异都是由材料结构的不同导致的。
英文摘要	Combined with chemical sand-fixation and biological sand-fixation, the comprehensive effects of two kinds of polyvinyl acetate copolymer emulsions with different structures were studied. The experimental results showed that the sand-fixing strength was greater than 0. 45 MPa, when the used concentration was 3%,which indicated that both emulsions had already satisfied the sand fixing requirement and could withstand the changes in temperature of salty sandy. Moreover, both emulsions could also improve the water-holding capacity of sandy soil to benefit the growth of microbe and the improvement of seed germination rate. However, compared with P(VAc-DBM-AA-AMPS) emulsion under the same used concentration, the compressive strength was 0. 88 MPa of 3. 0% P(VAc-DBM-AA-SSS) emulsion, which indicated that P(VAc-DBM-AA-SSS) emulsion had better compressive strength and was suitable for sand-fixing in salty sandy of larger amount of wind erosion. In addition,different emulsions had different effects on the growth of sand microbials, the difference in effects was presented that was due to the different structures of the polyvinyl acetate copolymer emulsions.
中文关键词	高盐沙地 ; 生态固沙 ; 结构与性能 ; 聚醋酸乙烯酯 ; 微生物
英文关键词	salty desert ecological sand-fixation structure and property polyvinyl acetate microorganisms
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING CHEMICAL
WOS研究方向	Engineering
CSCD记录号	CSCD:6391687
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238399
作者单位	1.商洛学院;;中国科学院,成都有机化学研究所, ;;, 商洛;;成都, 陕西;;四川 726000;;610041, 中国; 2.商洛学院, 商洛, 陕西 726000, 中国; 3.中国科学院,成都有机化学研究所, 成都, 四川 610041, 中国
推荐引用方式 GB/T 7714	李美兰,龚伟,王兴,等. PVAc共聚乳液结构特点对生态固沙性能的影响[J],2018,47(6):79-84.
APA	李美兰,龚伟,王兴,姚丹,吕盼盼,&刘白玲.(2018).PVAc共聚乳液结构特点对生态固沙性能的影响.塑料,47(6),79-84.
MLA	李美兰,et al."PVAc共聚乳液结构特点对生态固沙性能的影响".塑料 47.6(2018):79-84.