Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a compound high polymer material modified bentonite anti-seepage liner as well as a preparation method and application thereof, the compound high polymer material modified bentonite anti-seepage liner comprises a water-permeable geotextile formed by knitting or weaving synthetic fibers and compound high polymer material modified bentonite, and the preparation method of the compound high polymer material modified bentonite anti-seepage liner is a needle punching method. The compound high polymer material modified bentonite is prepared from the following components in percentage by mass: 85 to 95 percent of sodium bentonite, 3 to 7.5 percent of anionic polyacrylamide and 2 to 7.5 percent of hydroxyethyl cellulose; the anionic polyacrylamide and the hydroxyethyl cellulose are the compound high polymer material. The compound high polymer material modified bentonite anti-seepage liner can still keep an extremely low permeability coefficient aiming at an inorganic salt solution, an organic matter or a combined pollution solution, and the permeability coefficient can be reduced by 1000-10000 times compared with the permeability coefficient of a traditional pure bentonite material; the geosynthetic material can be used for domestic waste landfills, industrial pollution sites, coal mine landfills, salinized soil roadbed barrier layers and the like, and is a novel geosynthetic material.
本发明公开了一种复配高分子材料改性膨润土防渗衬垫、其制备方法及其应用，复配高分子材料改性膨润土防渗衬垫包括：由合成纤维通过针织或编制等而成的透水性土工织物，复配的高分子材料改性膨润土，其制备方法为针刺法。复配高分子材料改性膨润土以下按质量分数计的组分：钠基膨润土85‑95％，阴离子聚丙烯酰胺3‑7.5％，羟乙基纤维素2‑7.5％；所述阴离子聚丙烯酰胺与羟乙基纤维素即为复配高分子材料。复配高分子材料改性膨润土防渗衬垫可针对无机盐溶液、有机物或复合污染溶液仍能保持极低的渗透系数，相较于传统的纯膨润土材料渗透系数可降低1000‑10000倍；可用于生活垃圾填埋场，工业污染场地，煤矿山填埋场，盐渍土路基阻隔层等，是一种新型土工合成材料。
The invention discloses a compound high polymer material modified bentonite anti-seepage liner as well as a preparation method and application thereof, the compound high polymer material modified bentonite anti-seepage liner comprises a water-permeable geotextile formed by knitting or weaving synthetic fibers and compound high polymer material modified bentonite, and the preparation method of the compound high polymer material modified bentonite anti-seepage liner is a needle punching method. The compound high polymer material modified bentonite is prepared from the following components in percentage by mass: 85 to 95 percent of sodium bentonite, 3 to 7.5 percent of anionic polyacrylamide and 2 to 7.5 percent of hydroxyethyl cellulose; the anionic polyacrylamide and the hydroxyethyl cellulose are the compound high polymer material. The compound high polymer material modified bentonite anti-seepage liner can still keep an extremely low permeability coefficient aiming at an inorganic salt solution, an organic matter or a combined pollution solution, and the permeability coefficient can be reduced by 1000-10000 times compared with the permeability coefficient of a traditional pure bentonite material; the geosynthetic material can be used for domestic waste landfills, industrial pollution sites, coal mine landfills, salinized soil roadbed barrier layers and the like, and is a novel geosynthetic material.
本发明公开了一种复配高分子材料改性膨润土防渗衬垫、其制备方法及其应用，复配高分子材料改性膨润土防渗衬垫包括：由合成纤维通过针织或编制等而成的透水性土工织物，复配的高分子材料改性膨润土，其制备方法为针刺法。复配高分子材料改性膨润土以下按质量分数计的组分：钠基膨润土85‑95％，阴离子聚丙烯酰胺3‑7.5％，羟乙基纤维素2‑7.5％；所述阴离子聚丙烯酰胺与羟乙基纤维素即为复配高分子材料。复配高分子材料改性膨润土防渗衬垫可针对无机盐溶液、有机物或复合污染溶液仍能保持极低的渗透系数，相较于传统的纯膨润土材料渗透系数可降低1000‑10000倍；可用于生活垃圾填埋场，工业污染场地，煤矿山填埋场，盐渍土路基阻隔层等，是一种新型土工合成材料。
Compound high polymer material modified bentonite anti-seepage liner as well as preparation method and application thereof
一种复配高分子材料改性膨润土防渗衬垫、其制备方法及其应用
16.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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