新疆戶外耐候薄膜鍍鋅管江蘇御地溫室工程供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(shí)間后,由于污染及老化程度不同,透光率就會(huì)發(fā)生明顯變化，新疆戶外耐候薄膜鍍鋅管。據(jù)測(cè)定,采用聚乙烯薄膜覆蓋1個(gè)月后,薄膜下0.5米"><meta name="keywords" content="新疆戶外耐候薄膜鍍鋅管,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 http-equiv="Cache-Control" content="no-transform" /> <meta 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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>新疆戶外耐候薄膜鍍鋅管,薄膜</p><p><span>***更新：</span>2021-01-04 02:21:19</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cr7n8tv" 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="r3l7axe" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="n8x9khj" class="box"><p><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(shí)間后,由于污染及老化程度不同,透光率就會(huì)發(fā)生明顯變化，新疆戶外耐候薄膜鍍鋅管。據(jù)測(cè)定,采用聚乙烯薄膜覆蓋1個(gè)月后,薄膜下0.5米處透光率只有71%；而長(zhǎng)壽膜可達(dá)75%；覆蓋3個(gè)月后,聚乙烯薄膜為50%左右，新疆戶外耐候薄膜鍍鋅管,長(zhǎng)壽膜則為61%,年終長(zhǎng)壽膜的透光率也降至50%左右。上述測(cè)定結(jié)果說(shuō)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(huì)影響蔬菜正常生長(zhǎng)，新疆戶外耐候薄膜鍍鋅管。另外,薄膜上附著水滴后對(duì)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(wú)滴膜將會(huì)提高大棚透光率。薄膜技術(shù)有比較普遍的應(yīng)用。新疆戶外耐候薄膜鍍鋅管</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆戶外耐候薄膜鍍鋅管,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961365885662/560148.png"></div><p style="text-indent:25px">一般來(lái)說(shuō)，選擇塑料薄膜材料應(yīng)考慮以下這些因素。 1、外觀塑料薄膜的表面應(yīng)當(dāng)平整光滑，無(wú)皺折或*有少量的活褶，無(wú)明顯的凹凸不平、黑點(diǎn)、雜質(zhì)、晶點(diǎn)和僵塊，沒(méi)有條紋、斑痕、暴筋等弊病，無(wú)氣泡、針眼及破裂，鍍鋁膜的鍍鋁層應(yīng)當(dāng)均勻，不允許有明顯的亮條、陰陽(yáng)面等現(xiàn)象。此外，還要求薄膜表面清潔干凈，無(wú)灰塵、油污等。 2、規(guī)格及偏差塑料薄膜的寬度、厚度及其偏差應(yīng)當(dāng)符合要求，而且應(yīng)當(dāng)厚薄均勻，橫、縱向的厚度偏差小，且偏差分布比較均勻。此外，鍍鋁膜的鍍鋁層厚度也應(yīng)符合要求。一般來(lái)說(shuō)，選擇塑料薄膜材料應(yīng)考慮以下這些因素。 1、透明度和光澤度對(duì)于透明塑料薄膜，對(duì)其透光率要求較高，一般應(yīng)達(dá)到92%以上。而對(duì)于不透明塑料薄膜，比如白膜，則要求其白度高、不透明度好。此外，塑料薄膜還應(yīng)當(dāng)具有良好的光澤度。 2、物理機(jī)械性能由于塑料薄膜在印刷和復(fù)合過(guò)程中要受到機(jī)械力的作用，因此，要求薄膜材料必須具有一定的機(jī)械強(qiáng)度和柔韌性。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(zhǎng)率、撕裂強(qiáng)度、沖擊強(qiáng)度等，此外，鍍鋁膜上鍍鋁層的牢固度也應(yīng)當(dāng)符合要求。貴州聚合物薄膜鍍鋅管妥善保管能較大延長(zhǎng)塑料薄膜的使用壽命，必須建立和健全保管制度，由專人負(fù)責(zé)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆戶外耐候薄膜鍍鋅管,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961322487256/7196555.png"></div><p style="text-indent:25px">菜農(nóng)在更換薄膜片和溫室的日常維護(hù)時(shí)應(yīng)重點(diǎn)做好以下工作：及時(shí)更換受損的竹竿。溫室中的竹竿必須承受草茅草的重量，并且在大雪中的承載能力將較大增加。這會(huì)導(dǎo)致部分竹子被壓碎或折斷。必須及時(shí)維護(hù)或更換此類竹竿。對(duì)于已被壓碎的竹竿，可以將其卸下并更換，或者可以在折斷的竹竿旁邊安裝另一個(gè)。原始斷裂的部分用布條包裹，以防止膠片斷裂。*在有裂縫的情況下才能繼續(xù)使用的竹竿，用布條包裹起來(lái)。在山墻壁上的鋼絲底部填充廢輪胎或鞋底，以擴(kuò)大鋼絲的受力區(qū)域并避免鋼絲被撞到山墻壁中。將碎布、橡膠軟管、PVC管等放在棚面和正面的轉(zhuǎn)折點(diǎn)上，或在壓薄膜繩上套塑料軟管，以避免壓薄膜繩與棚薄膜直接接觸，減小壓薄膜繩與棚薄膜的摩擦力，減緩棚薄膜的磨損速度。一定要縮短舊薄膜撤下到新薄膜換上的時(shí)間。</p><p style="text-indent:25px">塑料薄膜棚除濕的方法： (一)通風(fēng)換氣：通風(fēng)換氣是塑料薄膜除濕較直接簡(jiǎn)單的辦法，但是我們也要注意通風(fēng)必須在高溫時(shí)進(jìn)行，否則會(huì)引起室內(nèi)溫度下降。如果通風(fēng)時(shí)溫度下降過(guò)快，要及時(shí)關(guān)閉通風(fēng)口，防止溫度驟然下降使作物遭受危害。 (二)合理澆水：水份是導(dǎo)致室內(nèi)濕度增加的主要因素。冬春生產(chǎn)可選擇晴天溝澆或分株澆水，地膜覆蓋的可采用膜下暗灌。澆水要嚴(yán)格控制澆水量，防止室內(nèi)濕度過(guò)高。 (三)地膜覆蓋：采用地膜覆蓋可以減少土壤水分的蒸發(fā)，是降低塑料薄膜空氣濕度的重要措施?？梢栽谒芰媳∧?nèi)采用大小壟距相間，地膜蓋雙壟的辦法，澆水時(shí)水沿地膜下的小壟溝內(nèi)流入。地膜阻止了水分的蒸發(fā)，也就防止了澆水后棚內(nèi)空氣濕度的大幅度提高。 (四)升溫降濕：采用這種方法既可滿足作物對(duì)溫度的需要，又可降低空氣相對(duì)濕度。當(dāng)植株長(zhǎng)到具有抵抗力時(shí)，澆水閉棚升溫達(dá)30℃左右持續(xù)1h，再通風(fēng)排濕。 (五)采用吸濕性良好的保溫幕材料：透濕和吸濕性良好的保溫幕材料能夠阻止內(nèi)表面結(jié)露，并可防止露水落到植株上，從而降低空氣濕度。 (六)自然吸濕：可以利用稻草，麥秸，生石灰等材料鋪于行間吸附水蒸汽或霧，達(dá)到降濕目的。農(nóng)用薄膜是應(yīng)用于農(nóng)業(yè)生產(chǎn)的塑料薄膜的總稱。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆戶外耐候薄膜鍍鋅管,薄膜" src="https://tyunfile.71360.com/UploadFile/jsydwsgc/637424961415925173/1074178.png"></div><p style="text-indent:25px">對(duì)于印刷油墨的附著牢度、復(fù)合薄膜的黏結(jié)強(qiáng)度等都有比較大的影響，因此，在印刷或復(fù)合之前，一般都要對(duì)塑料薄膜進(jìn)行表面處理。通過(guò)對(duì)塑料薄膜進(jìn)行表面處理，在非極性的塑料薄膜表面引入極性基團(tuán)，改變塑料薄膜表面的化學(xué)結(jié)構(gòu)，提高塑料薄膜表面的極性，同時(shí)提高表面能，降低表面的結(jié)晶度，提高表面層的內(nèi)聚強(qiáng)度，既有利于改進(jìn)油墨和膠黏劑在薄膜表面的潤(rùn)濕性能，又增加了兩者分子間的作用力，從而提高油墨和膠黏劑在薄膜表面的附著性，以保證生產(chǎn)的順利進(jìn)行。塑料薄膜常用的表面處理方法主要包括化學(xué)處理法、溶劑處理法、涂層處理法、火焰處理法、電暈處理和紫外線照射法等，其中目前較為常用的就是電暈處理法。電暈處理是利用尖的一端放電的原理，采用高頻高壓或中頻高壓對(duì)塑料薄膜表面進(jìn)行處理，使其表面活化，呈多孔性，增加了表面積以提高對(duì)油墨和膠黏劑的粘結(jié)力，同時(shí)使塑料薄膜表面發(fā)生氧化，提高了塑料薄膜的表面能，從而改善薄膜的印刷性和復(fù)合性能。長(zhǎng)壽薄膜、為使薄膜耐老化、易回收，在生產(chǎn)過(guò)程中加入防老化劑，可使薄膜的壽命延長(zhǎng)2～4倍。貴州聚合物薄膜鍍鋅管</p><p style="text-indent:25px">塑料薄膜的物理性能試驗(yàn)鑒別法：撕裂強(qiáng)度試驗(yàn)。新疆戶外耐候薄膜鍍鋅管</p><p style="text-indent:25px">薄膜的表面特性對(duì)薄膜的印刷和復(fù)合影響較大，且影響因素也較多，現(xiàn)簡(jiǎn)述如下。 1、塑料薄膜的結(jié)晶度許多塑料薄膜不*表面光滑，而且結(jié)晶度高，在分子處于熱力學(xué)的穩(wěn)定態(tài)，具有穩(wěn)定的化學(xué)性能，油墨或膠黏劑分子比較難在其表面產(chǎn)生擴(kuò)散作用，從而使油墨、膠黏劑等在薄膜表面的黏附力效果比較不理想。 2、弱表面層在加工聚烯烴等薄膜過(guò)程中，為了使薄膜具有較好的開(kāi)口性、抗靜電、耐老化、防紫外線照射等性能，往往要加入一定量的助劑，如開(kāi)口劑、抗靜電劑、增塑劑、穩(wěn)定劑等，這些助劑極易析出，并向表面遷移形成油污，使薄膜表面形成強(qiáng)度比較低的弱表面層。由于弱表面層的內(nèi)聚強(qiáng)度要比主體的內(nèi)聚強(qiáng)度低得多，會(huì)對(duì)印刷和復(fù)合工藝產(chǎn)生不利影響。 3、塑料薄膜表面的清潔度如果環(huán)境衛(wèi)生條件比較差，空氣潔凈度低，則塑料薄膜的表面極易吸附空氣中的灰塵、油脂等物質(zhì)，而這些吸附物會(huì)妨礙油墨和膠黏劑跟薄膜表面的相互接觸，影響它們?cè)谒芰媳∧け砻娴臐?rùn)濕，因此，對(duì)薄膜表面的清潔度一定要加以重視。新疆戶外耐候薄膜鍍鋅管</p><p style="text-indent:25px">江蘇御地溫室工程有限公司屬于農(nóng)業(yè)的高新企業(yè)，技術(shù)力量雄厚。公司是一家有限責(zé)任公司企業(yè)，以誠(chéng)信務(wù)實(shí)的創(chuàng)業(yè)精神、專業(yè)的管理團(tuán)隊(duì)、踏實(shí)的職工隊(duì)伍，努力為廣大用戶提供***的產(chǎn)品。公司始終堅(jiān)持客戶需求優(yōu)先的原則，致力于提供高質(zhì)量的溫室大棚，連棟大棚，大棚，玻璃溫室。江蘇御地溫室工程將以真誠(chéng)的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來(lái)！</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2692105.html</p></div></div></div></div></div><div id="qkc73a7" class="page-right twoColRt"><div id="o7nmoax" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nxpmovx" 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