薄(bo)膜(mo)(mo)在(zai)包(bao)(bao)裝(zhuang)(zhuang)(zhuang)領(ling)域(yu)的(de)(de)應(ying)用(yong)(yong)。它可(ke)(ke)以用(yong)(yong)于食品包(bao)(bao)裝(zhuang)(zhuang)(zhuang)、藥品包(bao)(bao)裝(zhuang)(zhuang)(zhuang)、日用(yong)(yong)品包(bao)(bao)裝(zhuang)(zhuang)(zhuang)等(deng)。由于薄(bo)膜(mo)(mo)具有(you)高阻隔性、防(fang)(fang)水防(fang)(fang)潮、防(fang)(fang)霉(mei)等(deng)特點(dian)，因此它可(ke)(ke)以有(you)效(xiao)地保(bao)(bao)護包(bao)(bao)裝(zhuang)(zhuang)(zhuang)物品不受外界環境的(de)(de)影響，延(yan)長其保(bao)(bao)質期和(he)使用(yong)(yong)壽命。同時(shi)，薄(bo)膜(mo)(mo)還可(ke)(ke)以用(yong)(yong)于包(bao)(bao)裝(zhuang)(zhuang)(zhuang)形態(tai)的(de)(de)改變(bian)和(he)尺寸的(de)(de)調整，使得包(bao)(bao)裝(zhuang)(zhuang)(zhuang)更加方便快捷。除了包(bao)(bao)裝(zhuang)(zhuang)(zhuang)領(ling)域(yu)，薄(bo)膜(mo)(mo)在(zai)電子(zi)行業(ye)(ye)的(de)(de)應(ying)用(yong)(yong)也越(yue)(yue)來越(yue)(yue)薄(bo)膜(mo)(mo)可(ke)(ke)以被用(yong)(yong)于制造(zao)電子(zi)元件和(he)電路板，例如用(yong)(yong)于制造(zao)太陽能電池板、顯(xian)示器(qi)等(deng)。在(zai)建(jian)筑(zhu)領(ling)域(yu)，薄(bo)膜(mo)(mo)可(ke)(ke)以用(yong)(yong)于建(jian)筑(zhu)物的(de)(de)外墻、屋(wu)頂、地面等(deng)部位的(de)(de)保(bao)(bao)溫和(he)防(fang)(fang)水處(chu)理(li)。在(zai)醫療(liao)領(ling)域(yu)，薄(bo)膜(mo)(mo)可(ke)(ke)以用(yong)(yong)于醫療(liao)設備(bei)和(he)儀器(qi)的(de)(de)制造(zao)，例如用(yong)(yong)于制造(zao)人(ren)、醫療(liao)器(qi)械等(deng)。PVA薄(bo)膜(mo)(mo)的(de)(de)耐油(you)性能，能夠保(bao)(bao)護產品免(mian)受油(you)脂(zhi)侵害，保(bao)(bao)持(chi)產品的(de)(de)原始(shi)品質。上(shang)海薄(bo)膜(mo)(mo)行業(ye)(ye)巨頭

電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)法的(de)(de)(de)(de)(de)(de)(de)基(ji)本原理(li)(li)是(shi)(shi):通過在金屬電(dian)(dian)(dian)(dian)極與電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)輥(gun)(一(yi)般(ban)為耐高(gao)(gao)溫、耐臭氧、高(gao)(gao)絕緣的(de)(de)(de)(de)(de)(de)(de)硅(gui)橡膠(jiao)(jiao)輥(gun))之(zhi)(zhi)間施(shi)加(jia)高(gao)(gao)頻、高(gao)(gao)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)，使之(zhi)(zhi)產(chan)生(sheng)放(fang)電(dian)(dian)(dian)(dian)，于(yu)是(shi)(shi)使空氣(qi)電(dian)(dian)(dian)(dian)離(li)并(bing)形成(cheng)大(da)量(liang)臭氧。同(tong)時(shi)，高(gao)(gao)能(neng)量(liang)電(dian)(dian)(dian)(dian)火花沖擊薄(bo)(bo)膜(mo)(mo)表面(mian)(mian)(mian)(mian)。在它們的(de)(de)(de)(de)(de)(de)(de)共(gong)同(tong)作(zuo)用下，使塑料(liao)薄(bo)(bo)膜(mo)(mo)表面(mian)(mian)(mian)(mian)產(chan)生(sheng)活化(hua)、表面(mian)(mian)(mian)(mian)能(neng)增(zeng)加(jia)。通過電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)可(ke)使聚烯烴薄(bo)(bo)膜(mo)(mo)的(de)(de)(de)(de)(de)(de)(de)濕張力(li)(li)提高(gao)(gao)到(dao)38達因/厘(li)米;可(ke)使聚酯薄(bo)(bo)膜(mo)(mo)的(de)(de)(de)(de)(de)(de)(de)表面(mian)(mian)(mian)(mian)濕張力(li)(li)達到(dao)52-56達因/厘(li)米以上(shang)。電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)塑料(liao)薄(bo)(bo)膜(mo)(mo)表面(mian)(mian)(mian)(mian)濕張力(li)(li)的(de)(de)(de)(de)(de)(de)(de)大(da)小與施(shi)加(jia)于(yu)電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)高(gao)(gao)低(di)、電(dian)(dian)(dian)(dian)極與電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)輥(gun)之(zhi)(zhi)間的(de)(de)(de)(de)(de)(de)(de)距離(li)等因素有(you)關。當然，電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)應當適(shi)度，并(bing)非(fei)電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)強度越(yue)高(gao)(gao)越(yue)好。這里(li)值得注意的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)塑料(liao)薄(bo)(bo)膜(mo)(mo)與電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)輥(gun)之(zhi)(zhi)間應避免夾(jia)入(ru)空氣(qi)，否則有(you)可(ke)能(neng)使薄(bo)(bo)膜(mo)(mo)的(de)(de)(de)(de)(de)(de)(de)反面(mian)(mian)(mian)(mian)也被電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)了。反面(mian)(mian)(mian)(mian)電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)造成(cheng)的(de)(de)(de)(de)(de)(de)(de)后(hou)果是(shi)(shi):1有(you)可(ke)能(neng)產(chan)生(sheng)油墨印(yin)刷的(de)(de)(de)(de)(de)(de)(de)反粘現象;2在鍍(du)鋁時(shi)會(hui)發生(sheng)鍍(du)鋁層轉移，在涂膠(jiao)(jiao)時(shi)會(hui)發生(sheng)涂膠(jiao)(jiao)層轉移。防(fang)止薄(bo)(bo)膜(mo)(mo)反面(mian)(mian)(mian)(mian)電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)的(de)(de)(de)(de)(de)(de)(de)主要措施(shi)是(shi)(shi)要調節好電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)處(chu)(chu)(chu)理(li)(li)輥(gun)前(qian)的(de)(de)(de)(de)(de)(de)(de)橡膠(jiao)(jiao)壓(ya)(ya)緊輥(gun)的(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)力(li)(li)，壓(ya)(ya)緊輥(gun)兩端壓(ya)(ya)力(li)(li)既要一(yi)致且壓(ya)(ya)力(li)(li)大(da)小又要合適(shi)。另外，電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)輥(gun)和壓(ya)(ya)緊輥(gun)必須進行嚴(yan)格的(de)(de)(de)(de)(de)(de)(de)動(dong)靜平衡試驗，徑向跳動(dong)要求(qiu)小于(yu)0.05毫(hao)米，目(mu)的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)保(bao)證塑料(liao)薄(bo)(bo)膜(mo)(mo)平整地進入(ru)電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)輥(gun)、防(fang)止夾(jia)入(ru)空氣(qi)，從而避免發生(sheng)反面(mian)(mian)(mian)(mian)電(dian)(dian)(dian)(dian)暈(yun)(yun)(yun)(yun)的(de)(de)(de)(de)(de)(de)(de)現象。六安(an)高(gao)(gao)阻隔PE薄(bo)(bo)膜(mo)(mo)聯系方式PVA薄(bo)(bo)膜(mo)(mo)可(ke)用于(yu)電(dian)(dian)(dian)(dian)子產(chan)品包裝，具有(you)良好的(de)(de)(de)(de)(de)(de)(de)防(fang)潮性能(neng)，保(bao)護電(dian)(dian)(dian)(dian)子產(chan)品免受濕氣(qi)侵害(hai)。

雙(shuang)(shuang)向(xiang)拉伸(shen)聚(ju)丙烯(xi)(xi)(xi)薄(bo)(bo)膜(mo)是由(you)聚(ju)丙烯(xi)(xi)(xi)顆粒經共(gong)擠形成片材后(hou)，再經縱橫兩個方向(xiang)的(de)拉伸(shen)而制得的(de)。由(you)于拉伸(shen)分子定向(xiang)，所以這種薄(bo)(bo)膜(mo)的(de)物(wu)理(li)穩定性(xing)(xing)、機(ji)械強(qiang)(qiang)度(du)(du)、氣(qi)密性(xing)(xing)較好，透明(ming)度(du)(du)和(he)(he)(he)光澤度(du)(du)較高，堅韌耐磨，是應(ying)用(yong)(yong)**的(de)印(yin)刷(shua)薄(bo)(bo)膜(mo)，一般使(shi)用(yong)(yong)厚度(du)(du)為20~40 μ m ，應(ying)用(yong)(yong)**的(de)為20 μ m 。雙(shuang)(shuang)向(xiang)拉伸(shen)聚(ju)丙烯(xi)(xi)(xi)薄(bo)(bo)膜(mo)主要缺點是熱封性(xing)(xing)差(cha)，所以一般用(yong)(yong)做(zuo)復(fu)合(he)薄(bo)(bo)膜(mo)的(de)外層薄(bo)(bo)膜(mo)，如與聚(ju)乙烯(xi)(xi)(xi)薄(bo)(bo)膜(mo)復(fu)合(he)后(hou)防(fang)潮(chao)性(xing)(xing)、透明(ming)性(xing)(xing)、強(qiang)(qiang)度(du)(du)、挺度(du)(du)和(he)(he)(he)印(yin)刷(shua)性(xing)(xing)均較理(li)想(xiang)，適用(yong)(yong)于盛裝干燥(zao)食品。由(you)于雙(shuang)(shuang)向(xiang)拉伸(shen)聚(ju)丙烯(xi)(xi)(xi)薄(bo)(bo)膜(mo)的(de)表面為非極性(xing)(xing)，結晶度(du)(du)高，表面自由(you)能低，因此，其(qi)印(yin)刷(shua)性(xing)(xing)能較差(cha)，對(dui)油墨和(he)(he)(he)膠黏劑的(de)附著力差(cha)，在印(yin)刷(shua)和(he)(he)(he)復(fu)合(he)前需要進行(xing)表面處理(li)。

PVDC（聚(ju)偏氯乙(yi)(yi)烯(xi)）的(de)(de)(de)特點是(shi)(shi)低透過性(xing)(xing)、阻(zu)隔(ge)(ge)性(xing)(xing)和(he)(he)(he)耐化學藥品(pin)(pin)性(xing)(xing)。我國PVDC是(shi)(shi)伴隨著(zhu)火腿腸加工技(ji)術引進并得到(dao)發(fa)展的(de)(de)(de)。2002年國內(nei)(nei)PVDC產(chan)(chan)量約為(wei)2萬噸(dun)，目前(qian)已應用(yong)于(yu)食品(pin)(pin)、卷煙(yan)、飲料保鮮(xian)(xian)和(he)(he)(he)隔(ge)(ge)味，以及(ji)化工、醫藥、電(dian)子(zi)和(he)(he)(he)較產(chan)(chan)業的(de)(de)(de)防潮包(bao)裝(zhuang)(zhuang)。 單層PVDC薄膜(mo)采(cai)用(yong)雙向拉伸(shen)(shen)吹塑制取，具有(you)收縮性(xing)(xing)、阻(zu)隔(ge)(ge)性(xing)(xing)、阻(zu)水性(xing)(xing)，在微波加熱的(de)(de)(de)條(tiao)件下不分解，用(yong)于(yu)家用(yong)保鮮(xian)(xian)膜(mo)；PVDC與聚(ju)乙(yi)(yi)烯(xi)（PE）、聚(ju)丙烯(xi)（PP）、聚(ju)苯乙(yi)(yi)烯(xi)（HIPS）等合(he)成樹脂多層擠出(chu)用(yong)于(yu)真(zhen)空奶制品(pin)(pin)、果(guo)醬等包(bao)裝(zhuang)(zhuang)，其拉伸(shen)(shen)性(xing)(xing)能較好，適于(yu)較大容積的(de)(de)(de)包(bao)裝(zhuang)(zhuang)；PVDC與PE、聚(ju)氯乙(yi)(yi)烯(xi)（PVC）的(de)(de)(de)復合(he)片材適用(yong)于(yu)易吸潮、易揮發(fa)藥品(pin)(pin)的(de)(de)(de)包(bao)裝(zhuang)(zhuang)。目前(qian)國內(nei)(nei)許多科研(yan)單位和(he)(he)(he)生產(chan)(chan)廠家集(ji)中研(yan)究PVDC與其它樹脂復合(he)層壓薄膜(mo)技(ji)術及(ji)復合(he)薄膜(mo)的(de)(de)(de)耐高溫技(ji)術。PVA薄膜(mo)可用(yong)于(yu)農(nong)產(chan)(chan)品(pin)(pin)包(bao)裝(zhuang)(zhuang)，能有(you)效(xiao)保持農(nong)產(chan)(chan)品(pin)(pin)的(de)(de)(de)新鮮(xian)(xian)度和(he)(he)(he)營養(yang)價值，延長貨(huo)架期。

根據不同(tong)的(de)(de)用(yong)(yong)途，塑(su)料(liao)薄(bo)(bo)(bo)(bo)膜(mo)(mo)可以采(cai)用(yong)(yong)不同(tong)的(de)(de)材料(liao)，如聚(ju)乙(yi)烯(xi)(xi)、聚(ju)丙(bing)烯(xi)(xi)、聚(ju)氯乙(yi)烯(xi)(xi)等。此(ci)(ci)外(wai)，塑(su)料(liao)薄(bo)(bo)(bo)(bo)膜(mo)(mo)還具有(you)(you)良(liang)好的(de)(de)透明度、防(fang)水性(xing)(xing)(xing)和(he)(he)耐(nai)腐(fu)蝕性(xing)(xing)(xing)，因此(ci)(ci)常(chang)(chang)用(yong)(yong)于保(bao)護物(wu)體表面(mian)不受外(wai)界環境的(de)(de)侵害(hai)。除此(ci)(ci)之外(wai)，陶(tao)瓷(ci)薄(bo)(bo)(bo)(bo)膜(mo)(mo)也(ye)是一(yi)種具有(you)(you)重要應用(yong)(yong)的(de)(de)薄(bo)(bo)(bo)(bo)膜(mo)(mo)材質(zhi)。陶(tao)瓷(ci)薄(bo)(bo)(bo)(bo)膜(mo)(mo)具有(you)(you)高(gao)(gao)熔點(dian)、高(gao)(gao)硬度、高(gao)(gao)絕緣性(xing)(xing)(xing)和(he)(he)高(gao)(gao)耐(nai)磨性(xing)(xing)(xing)等特點(dian)，因此(ci)(ci)常(chang)(chang)用(yong)(yong)于制(zhi)造高(gao)(gao)溫和(he)(he)惡(e)劣環境下的(de)(de)電子元件和(he)(he)結構材料(liao)。常(chang)(chang)見的(de)(de)陶(tao)瓷(ci)薄(bo)(bo)(bo)(bo)膜(mo)(mo)材質(zhi)有(you)(you)氧化(hua)(hua)(hua)鋁、氧化(hua)(hua)(hua)鋯、碳化(hua)(hua)(hua)硅等。此(ci)(ci)外(wai)，玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)薄(bo)(bo)(bo)(bo)膜(mo)(mo)也(ye)是一(yi)種常(chang)(chang)見的(de)(de)薄(bo)(bo)(bo)(bo)膜(mo)(mo)材質(zhi)。玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)薄(bo)(bo)(bo)(bo)膜(mo)(mo)具有(you)(you)良(liang)好的(de)(de)光(guang)學性(xing)(xing)(xing)能(neng)和(he)(he)化(hua)(hua)(hua)學穩定(ding)性(xing)(xing)(xing)，因此(ci)(ci)常(chang)(chang)用(yong)(yong)于制(zhi)造光(guang)學元件和(he)(he)化(hua)(hua)(hua)學實驗室(shi)的(de)(de)設備。玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)薄(bo)(bo)(bo)(bo)膜(mo)(mo)的(de)(de)材質(zhi)有(you)(you)硅酸鹽玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)、硼酸鹽玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)、磷酸鹽玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)等。PVA薄(bo)(bo)(bo)(bo)膜(mo)(mo)的(de)(de)耐(nai)磨性(xing)(xing)(xing)好，能(neng)夠保(bao)持(chi)包裝外(wai)觀的(de)(de)美觀和(he)(he)完整性(xing)(xing)(xing)。阜陽薄(bo)(bo)(bo)(bo)膜(mo)(mo)

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例如，添加(jia)劑可以(yi)(yi)提(ti)高薄(bo)(bo)膜(mo)(mo)的(de)(de)強度(du)(du)(du)和(he)韌性(xing)(xing)，而加(jia)工助劑則可以(yi)(yi)改善(shan)薄(bo)(bo)膜(mo)(mo)的(de)(de)加(jia)工流動性(xing)(xing)，使(shi)(shi)加(jia)工過程(cheng)(cheng)(cheng)(cheng)更加(jia)穩定和(he)可控(kong)。二(er)、薄(bo)(bo)膜(mo)(mo)制(zhi)(zhi)(zhi)(zhi)備薄(bo)(bo)膜(mo)(mo)的(de)(de)制(zhi)(zhi)(zhi)(zhi)備過程(cheng)(cheng)(cheng)(cheng)可以(yi)(yi)分(fen)(fen)(fen)為三個(ge)主要(yao)步驟(zou)：熔(rong)融(rong)、擠(ji)(ji)出(chu)(chu)和(he)冷卻。熔(rong)融(rong)：將高分(fen)(fen)(fen)子材(cai)料(liao)加(jia)熱至熔(rong)點以(yi)(yi)上，使(shi)(shi)其(qi)成為熔(rong)融(rong)狀(zhuang)態。這(zhe)(zhe)個(ge)過程(cheng)(cheng)(cheng)(cheng)中需(xu)要(yao)控(kong)制(zhi)(zhi)(zhi)(zhi)加(jia)熱溫(wen)度(du)(du)(du)和(he)熔(rong)融(rong)時間，以(yi)(yi)確保(bao)高分(fen)(fen)(fen)子材(cai)料(liao)充分(fen)(fen)(fen)熔(rong)融(rong)且不會過度(du)(du)(du)受熱而分(fen)(fen)(fen)解。擠(ji)(ji)出(chu)(chu)：將熔(rong)融(rong)的(de)(de)高分(fen)(fen)(fen)子材(cai)料(liao)通(tong)過擠(ji)(ji)出(chu)(chu)機口模(mo)擠(ji)(ji)出(chu)(chu)成膜(mo)(mo)狀(zhuang)。這(zhe)(zhe)個(ge)過程(cheng)(cheng)(cheng)(cheng)中需(xu)要(yao)控(kong)制(zhi)(zhi)(zhi)(zhi)擠(ji)(ji)出(chu)(chu)壓(ya)力(li)和(he)口模(mo)尺寸，以(yi)(yi)獲得(de)厚度(du)(du)(du)均勻(yun)的(de)(de)薄(bo)(bo)膜(mo)(mo)。冷卻：擠(ji)(ji)出(chu)(chu)的(de)(de)薄(bo)(bo)膜(mo)(mo)在空(kong)氣中迅速冷卻，使(shi)(shi)其(qi)固化并具有所需(xu)的(de)(de)形(xing)狀(zhuang)和(he)性(xing)(xing)能。這(zhe)(zhe)個(ge)過程(cheng)(cheng)(cheng)(cheng)中需(xu)要(yao)控(kong)制(zhi)(zhi)(zhi)(zhi)冷卻速度(du)(du)(du)，以(yi)(yi)防止薄(bo)(bo)膜(mo)(mo)產生內應力(li)。上海(hai)薄(bo)(bo)膜(mo)(mo)行(xing)業巨頭

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