江蘇薄膜材料江蘇御地溫室工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="塑料薄膜生產(chǎn)工藝中的“吹塑法“與”流延法“生產(chǎn)薄膜工藝區(qū)別：1.多層共擠吹塑法：這種生產(chǎn)工藝方法主要分為上吹風(fēng)冷和下吹水冷兩種形式。上吹風(fēng)冷，主要是由多臺擠出機(jī)，多層疊加模頭，多風(fēng)口風(fēng)環(huán)，IBC內(nèi)冷系統(tǒng)，人字夾板，旋轉(zhuǎn)牽引系統(tǒng)，下牽引系統(tǒng)以"><meta name="keywords" content="江蘇薄膜材料,薄膜"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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class="proBig"><div id="wfbxwrt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961476090842/5912866.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="a7dnk3v" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961476090842/5912866.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xpbmdzb" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇薄膜材料,薄膜</p><p><span>***更新：</span>2020-12-16 07:28:48</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="38ykrip" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇御地溫室工程有限公司</a></p><p><span>聯(lián)系人：</span>汪先生</p><p><span>郵箱: </span>845964795@qq.com</p><p><span>電話: </span>13395116663</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://www.jsydws.com</p><p><span>手機(jī): </span>0510-83830223</p><p><span>地址: </span>洛社鎮(zhèn)洛南大道8-903</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="rvripar" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="34h7gry" class="box"><p><p style="text-indent:25px">塑料薄膜生產(chǎn)工藝中的“吹塑法“與”流延法“生產(chǎn)薄膜工藝區(qū)別： 1.多層共擠吹塑法：這種生產(chǎn)工藝方法主要分為上吹風(fēng)冷和下吹水冷兩種形式。上吹風(fēng)冷，主要是由多臺擠出機(jī)，多層疊加模頭，多風(fēng)口風(fēng)環(huán)，IBC內(nèi)冷系統(tǒng)，人字夾板，旋轉(zhuǎn)牽引系統(tǒng)，下牽引系統(tǒng)以及收卷系統(tǒng)這幾個主要部分組成。在多層共擠高阻隔性薄膜的生產(chǎn)中，仍舊以上吹風(fēng)冷式機(jī)組為主。不管用哪二種形式的機(jī)組，在外觀形態(tài)上，都是以筒狀膜為主要表現(xiàn)特征，在真空袋制袋方面，江蘇薄膜材料，由于減少了二個熱封邊，在對包裝內(nèi)容物的保護(hù)上比流延膜有著非常大的優(yōu)勢。在拉伸強(qiáng)度方面比流延膜好。 2.多層共擠流延法：這種生產(chǎn)工藝主要是由多臺擠出機(jī)，多流道分配器(俗稱“集料器”)，江蘇薄膜材料，T型模頭，江蘇薄膜材料，流延系統(tǒng)，水平牽引系統(tǒng)，振蕩器，收卷系統(tǒng)組成。這種生產(chǎn)工藝主要的特點在于，生產(chǎn)出來的薄膜制品表面光澤度好，平整度高，厚度公差小，力學(xué)延伸性能好，柔韌性好，透明度比吹塑法高。一般按照薄膜絕緣材料的耐熱等級中，長期工作溫度達(dá)到H級180oC以上，可以稱為耐高溫薄膜。江蘇薄膜材料</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜材料,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961476090842/5912866.png"></div><p style="text-indent:25px">采用不同類型的塑料薄膜。透光率有一定差別,而這種差別不十分明顯,一般新膜透光率均可達(dá)到80~88%。但覆蓋一段時間后,由于污染及老化程度不同,透光率就會發(fā)生明顯變化。據(jù)測定,采用聚乙烯薄膜覆蓋1個月后,薄膜下0.5米處透光率只有71%；而長壽膜可達(dá)75%；覆蓋3個月后,聚乙烯薄膜為50%左右,長壽膜則為61%,年終長壽膜的透光率也降至50%左右。上述測定結(jié)果說明,不論何種薄膜使用1年后較好換膜,可將其換作二層覆蓋用,或用肥皂液擦拭用水沖洗后再用,否則會影響蔬菜正常生長。另外,薄膜上附著水滴后對大棚透光率影響比較大,約有20%的光線被反射掉了。因此,選用無滴膜將會提高大棚透光率。甘肅白色薄膜多少錢薄膜是一種薄而軟的透明薄片。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜材料,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961543190535/9459143.png"></div><p style="text-indent:25px">薄膜為什么出現(xiàn)白點或發(fā)白？一、復(fù)合薄膜出現(xiàn)白點多可能原因如下： 1.復(fù)合上膠量不夠； 2.復(fù)合熟化時間不夠； 3.復(fù)合薄膜本身表面處理不夠； 4.復(fù)合膠水不匹配。二、吹塑薄膜表面法寶的原因：膜受到擠壓，或者拉伸都會出現(xiàn)這種現(xiàn)象，這是膜比較軟，在內(nèi)部分子排列整齊時是透明的，在分子重新排列的過程中它的光學(xué)特性由透明變成反光的了。這種現(xiàn)象的可逆過程是有一個適當(dāng)?shù)臏囟冗^一個比較小的時間段，比方用90至120度溫度保持幾秒鐘，會恢復(fù)透明。知道這個道理后，解釋清楚好的。</p><p style="text-indent:25px">常用的農(nóng)膜有哪些？ 1、長壽薄膜、為使薄膜耐老化、易回收，在生產(chǎn)過程中加入防老化劑，可使薄膜的壽命延長2～4倍。地膜在揭膜后仍有一定強(qiáng)度，回收后仍可使用，既降低了成本，又可減少田間的殘膜量。防蟲薄膜、它是用普通乙烯和低密度乙烯制成的多層薄膜。這種膜只向四周反射陽光中的紫外線，而阻止可見光的反射。害蟲因忌怕紫外光而不敢靠近薄膜，故能起到防蟲效果；對于防治抗藥性強(qiáng)的蚜蟲、紅蜘蛛等特別有效。 2、防病薄膜、這是**薄膜，如玉米地膜、棉花地膜、瓜菜地膜等。它是利用不同作物具有專一性的病害而生產(chǎn)的。防病薄膜生產(chǎn)過程中，有針對性地加入某種特定的農(nóng)藥。這種地膜無殘留、無污染、防病效果明顯，不少地方已大量用于種植業(yè)。 3、除草薄膜、除草薄膜是一種新興的農(nóng)用塑料薄膜，是普通地膜生產(chǎn)過程中加入黑色母?；蛘呋瘜W(xué)除草劑制成的。除草地膜可分為含除草劑的地膜和含陽光屏蔽劑的除草地膜。一般說，農(nóng)用塑料薄膜在一年中的實際使用的時間不長，絕大部分時間是保管。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇薄膜材料,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961517106334/5258968.png"></div><p style="text-indent:25px">薄膜吹塑法和流延法的產(chǎn)品特點比較： 1.吹塑法因有一個吹脹過程而導(dǎo)致產(chǎn)品的縱、橫向的分子受到不同程度的拉伸。產(chǎn)品的耐溫度性能和熱封性能都會受到較大影響，當(dāng)產(chǎn)品需要蒸煮消毒(如121℃蒸氣)時，成型中被拉伸的分子鏈?zhǔn)軣岷髸忻黠@的回縮現(xiàn)象，導(dǎo)致產(chǎn)品嚴(yán)重變形，并且會較大降低熱封連接處的強(qiáng)度而導(dǎo)致漏袋現(xiàn)象。 2.流延法生產(chǎn)薄膜(又稱未拉伸薄膜)時，分子排列有序，產(chǎn)品冷卻速度快，有利于提高產(chǎn)品的透明度、光澤度及厚薄均勻性，且產(chǎn)品質(zhì)地較軟、較韌；抗沖擊性能、耐熱及低溫適應(yīng)性均好于吹塑法。 3.流延法的生產(chǎn)效率極高，產(chǎn)品質(zhì)量穩(wěn)定性好。生產(chǎn)過程中的廢料少，且較易實現(xiàn)在線回收邊、廢料，材料的利用率高。多用途薄膜、此種薄膜除用做水稻、棉花、玉米、烤煙、花卉的育苗和大田覆蓋外，還可利用它做防洪膜。四川自粘薄膜鋼管</p><p style="text-indent:25px">塑料薄膜的物理機(jī)械性能主要包括拉伸強(qiáng)度、斷裂伸長率、撕裂強(qiáng)度、沖擊強(qiáng)度等。江蘇薄膜材料</p><p style="text-indent:25px">塑料薄膜的表面張力取決于塑料薄膜表面自由能大小，而薄膜表面能又取決于薄膜材料本身的分子結(jié)構(gòu)。多數(shù)塑料薄膜如聚烯烴薄膜(LDPE、HDPE、LLDPE、PP)屬非極性聚合物，其表面自由能小，表面濕張力較低，一般為30達(dá)因/厘米左右。理論上講，若物體的表面張力低于33達(dá)因/厘米，普通的油墨或粘合劑就無法附著牢固，因此必須對其表面處理。聚酯類(PET、PBT、PEN、PETG)是屬于極性高的分子，其表面自由能較高，表面濕張力在40達(dá)因/厘米以上。但是對于高速彩色印刷或為增加真空鍍鋁層與BOPET薄膜表面之間的結(jié)合力，也還需要對BOPET薄膜進(jìn)行表面處理，以進(jìn)一步提高其表面濕張力。江蘇薄膜材料</p><p style="text-indent:25px">江蘇御地溫室工程有限公司致力于農(nóng)業(yè)，是一家生產(chǎn)型公司。江蘇御地溫室工程致力于為客戶提供良好的溫室大棚，連棟大棚，大棚，玻璃溫室，一切以用戶需求為中心，深受廣大客戶的歡迎。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造農(nóng)業(yè)良好品牌。江蘇御地溫室工程立足于全國市場，依托強(qiáng)大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2427582.html</p></div></div></div></div></div><div id="7flsj3o" class="page-right twoColRt"><div id="2cnj8y8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t2vop2j" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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