无纺土工布耐酸碱性探究.pdfVIP

2017年2月 中国矿山工程 第46卷第1期 ChinaMine ·61· Engineering 无纺土工布耐酸碱性探究 Researchonacidandalkaliresistanceofnon．wovenfabric 解井坤，李建新，褚兆晶(浩阳环境股份有限公司，山东德州251200) 摘 要：以涤纶长丝无纺土工布、涤纶短纤无纺土工布以及丙纶短纤无纺土工布为研究对象，考察了不同pH(酸碱)条件下涤 纶长丝无纺土工布的耐腐蚀性，时间对无纺土工布耐腐蚀性的影响，不同克重(每平方米)的涤纶长丝和涤纶短纤无纺土工布 的耐腐性以及丙纶短纤和涤纶短纤无纺土工布的耐腐蚀性比较。结果表明：在pH=2—10的酸碱环境中，涤纶长丝和涤纶短 纤无纺土工布具有良好的耐受性；在pH≥12的环境中，涤纶长丝无纺土工布短时间内其断裂拉伸性能即完全丧失，涤纶短纤 无纺土工布较之涤纶长丝有较好的耐受性；丙纶短纤无纺土工布无论在强酸和强碱环境中都具有良好的耐受性，而且其在强 酸环境中的性能优于涤纶短纤无纺土工布。 关键词：无纺土工布；耐酸碱性；涤纶长丝；涤纶短纤 filamentnon—woven fibernon—woven and fiber Abstract：Takingpolyester geotextile，polyesterstaple geotextilepolypropylenestaple non—woven astheresearch corrosionresistanceof filamentnon—woven underdifferent geotextile objects，the polyester geotextile pH and effectoftimeonthecorrosion (acidalkali)，the resistanceofnon．wovenfabricwerestudied．Thecorrosionresistanceofdifferent weight(persquaremeter)of filamentand fibernon—Woven thecorrosionresistanceof polyester polyesterstaple geotextiles，and fiberand fibernon—woven were resultshowedthat polypropylene staple polyesterstaple geotexfilescomparedseparately．The polyester filamentand fibernon—woven had tolerancewhen thetensile of polyesterstaple geotextilesgood pH=2—10．WhenpH≥12 properties filamentnon--woven lostwithinashorttimeandthetoleranceof fibernon--woven polyester geotextilecompletely polyester staple wasbetterthan filamentnon·woven fibernon—woven had tolerance geotextile polyester geotextile．Polypropylenestaple geo