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class="xypg-left-box xypg-left-contact"> <div class="xypg-left-title"> <h3>聯系我們<span>Contact Us</span></h3> </div> <div class="xypg-left-con"> <div class="page-wrap-contact"> <h4>南昌天高環?？萍脊煞萦邢薰?/h4> <p>電話：17770087478-鄭經理</p><p>傳真：0791-86690255</p><p>網址：江西省南昌市昌北經濟技術開發區天高工業園</p><p><br/></p> </div> </div> </div> </div> </div> <div class="page-wrap-right"> <div class="xypg-right-content">  <div class="news_detail"> <h1 class="title">怎樣防止土工膜等土工材料的老化</h1> <div class="info_title clearfix"> <h3 class="title_bar"> 發布日期：<span>2019-01-24</span> 作者：<span>南昌天高</span> 點擊：<span><script src="http://www.permaculturegreenhouse.com/data/include/newshits.php?id=512"></script></span> </h3> <div class="share">  <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" 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16px;">Z基本的土工膜，在各大防滲工程中更是得到了廣泛的運用。土工膜對途徑工程中的防滲作用基本上能起到99%的作用。但是關于土工膜老化的問題我們不容忽視。土工膜的老化是高分子材料的固有特性之一，不能徹底消除，但能夠采用有用方法，推延土工膜老化。</span></p><p style="text-indent: 2em;"><span style="font-size: 16px;">通過我們長期實踐，發現推延土工膜老化的方法能夠從兩方面著手：一方面是在原材料中參與防老化劑，按光、氧、熱等外界要素對材料的作用，在生產過程中摻加適量的抗氧化助劑、光穩定劑和深色碳黑等。實驗證明在聚丙烯中摻加防老化劑，經4年日光直接曝曬，強度僅丟掉25%，假設不加防老化劑，直接在日光下照射2-3月，強度即丟掉殆盡。另一方面是在工程中采用防護方法，如施工過程中盡量減少光照。</span></p><p><br/></p></div> <h3 class="tag">相關標簽： </h3> <div class="page">上一篇：<a href="http://www.permaculturegreenhouse.com/news/509.html">HDPE土工膜在畜牧業廣泛應用</a><br />下一篇：<span><a href="http://www.permaculturegreenhouse.com/news/515.html">關于2019年春節放假通知</a></span></div> </div> </div> </div> <div class="page-mob-tool"> <ul> <li class="xymob-page-navbtn"><i class="icon-font icon-dots-horizontal"></i></li> <li class="xymob-page-backtop"><i class="icon-font icon-top"></i></li> </ul> </div> </div> </div> <div class="x-layout"> <div class="container-fluid"> <div class="row"> <div class="col-md-2 col-sm-12"> <div 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