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href="http://www.cdcfah.com/cp/first-_xiangsu/">橡塑</a>?<a href="http://www.cdcfah.com/cp/second-xiangsu_gcsl/">工程塑料</a>?<a href="http://www.cdcfah.com/cp/third-gcsl_pla/">PLA</a>?塑料降解膜標(biāo)準(zhǔn) 廣東匯興環(huán)保材料供應(yīng)</p><div id="sm7gvse" class="leftbox clearfix"><h1>塑料降解膜標(biāo)準(zhǔn) 廣東匯興環(huán)保材料供應(yīng)</h1><div id="3suwoqx" class="proBig"><div id="cmebdkw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huixinghb/637254079270058594/358771.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2dac3ue" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/huixinghb/637254079270058594/358771.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uzripg2" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>塑料降解膜標(biāo)準(zhǔn)</p><p><span>***更新：</span>2020-06-28 05:25:27</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bactqcz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">廣東匯興環(huán)保材料有限公司</a></p><p><span>聯(lián)系人：</span>馮新科</p><p><span>郵箱: </span>sales@ti-bopp.com</p><p><span>電話: </span>18807695431</p><p><span>傳真: </span>0769_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0769-82275077</p><p><span>地址: </span>東坑鎮(zhèn)丁屋振興一路2號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="dnk3zbi" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3ikrtqh" class="box"><p><p style="text-indent:25px">隨著人類社會對環(huán)境問題認(rèn)識水平的不斷深化，解決廢棄地膜造成的“白色污染”建立環(huán)境友好性社會，建立人與環(huán)境的良性互動，***的辦法就是推廣應(yīng)用可降解地膜。而其中光——生物雙降解地膜的發(fā)展及推廣尤為重要。雙降解地膜的研究，是今后我國地膜產(chǎn)業(yè)的發(fā)展趨勢，也是發(fā)展可持續(xù)性農(nóng)業(yè)的必要前提。材料準(zhǔn)備，稱量80公斤線性低密度聚乙烯7042，20公斤高壓聚乙烯2426,生物降解母粒30公斤，二茂鐵0.08公斤，塑料降解膜標(biāo)準(zhǔn)，加入攪拌機(jī)攪拌5分鐘備用，塑料降解膜標(biāo)準(zhǔn)。擠出機(jī)預(yù)熱，一組溫度150度，二組溫度160度，三組溫度170度，三通彎頭溫度160度，模頭溫度150度，溫度到達(dá)指定數(shù)據(jù)后，恒溫20分鐘。投料生產(chǎn)：把準(zhǔn)備好的材料加入料斗后，塑料降解膜標(biāo)準(zhǔn)，緩緩啟動主機(jī)，開啟牽引，收卷，鼓風(fēng)機(jī)，慢慢加氣，***測量厚度，寬度，到達(dá)預(yù)定數(shù)據(jù)后，剖邊收卷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑料降解膜標(biāo)準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/huixinghb/637254079270058594/358771.jpg"></div><p style="text-indent:25px">針對生產(chǎn)中使用普通農(nóng)用塑料地膜導(dǎo)致農(nóng)田土壤污染的現(xiàn)狀,進(jìn)行了不同厚度可降解(光、生物降解)地膜、普通地膜和露地栽培玉米對比試驗(yàn),探討可降解地膜的降解性能及對土壤水分、溫度和玉米生長的影響。結(jié)果表明,0.005mm厚可降解地膜的降解速度及強(qiáng)度均優(yōu)于0.008mm厚膜,二者在覆膜后90d分別達(dá)降解5級、4級水平,地膜質(zhì)量損失率達(dá)55.48%、39.99%。兩種可降解地膜對土壤水分、溫度和玉米生長的影響與普通地膜相當(dāng),均使0～20、>20～40cm土壤水分含量、地表及地下10cm土壤溫度明顯高于露地對照,使玉米出苗率提高,生育進(jìn)程加快,株高、葉面積和地上部干物質(zhì)積累量增加;其中0.008mm厚膜覆蓋玉米效果優(yōu)于0.005mm厚膜。研究認(rèn)為,以可降解地膜替代普通地膜應(yīng)用于農(nóng)業(yè)生產(chǎn)具有可行性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑料降解膜標(biāo)準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/huixinghb/637254079271718750/9747812.jpg"></div><p style="text-indent:25px">本文對聚乳酸的合成方法及近年來聚乳酸基納米復(fù)合材料的研究進(jìn)展進(jìn)行了綜述,創(chuàng)新性地提出以L-乳酸和酸性硅溶膠(aSS)為原料的原位熔融縮聚法,制備了SiO_2含量為3.5％-19.1％的聚乳酸納米復(fù)合材料,并對聚乳酸/SiO_2納米復(fù)合材料的結(jié)構(gòu)、透光率、熱性能和結(jié)晶性進(jìn)行了較深入的研究。在L-乳酸熔融縮聚過程水溶液直接混合進(jìn)行原位分散。由于二者均為強(qiáng)酸性、強(qiáng)極性,且均為水分散液,確保了SiO_2粒子的分散穩(wěn)定,且方便地實(shí)現(xiàn)了SiO_2粒子在L-乳酸單體中的均勻分散。在縮聚過程中,一方面有機(jī)相由于聚乳酸鏈的增長,使極性變?nèi)?而無機(jī)相SiO_2粒子表面分布有活性高的硅羥基,可以與L-乳酸單體(LLA)和乳酸齊聚物(OLLA)的羧基發(fā)生縮合反應(yīng),使OLLA接枝到SiO_2表面,隨著接枝反應(yīng)的進(jìn)行以及g-OLLA鏈的增長,無機(jī)相的極性也逐漸減弱,因而無機(jī)相表面也發(fā)生與有機(jī)相同步的極性變化；另一方面,g-OLLA在SiO_2粒子表面取代擴(kuò)散雙電層形成保護(hù)層,提供了位阻效應(yīng)。二者均起到了促進(jìn)SiO_2粒子分散穩(wěn)定的作用,因此**終能得到SiO_2粒子在聚乳酸基體中納米級分散的聚乳酸/SiO_2納米復(fù)合材料。<br /></p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/419386.html</p></div></div></div></div></div><div id="tdvsug8" class="page-right twoColRt"><div id="t89cumy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ix2subi" class="recomPic likePro"><a 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