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The Barrier Properties of Plastic Packaging Films
Ye Long
(School of Material Science and Engineering锛學uhan Institute of Technology)
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2.1闃绘皵鎬?/span>銆?锝?銆?/span>
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2.2闃绘箍鎬?/span>銆?锛?銆?/span>
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2.3鏈夋満鐗╂笚閫忔€э紙闃绘补鎬э級銆?銆?/span>
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2.4淇濋鎬?/span>銆?銆?/span>
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3銆?/span>濉戞枡钖勮啘闃婚殧鎬х殑琛ㄥ緛銆?锛?銆?/span>
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3.1 娓楅€忕郴鏁癙
锛?锛?/span>
寮忎腑涓哄鍚堢粨鏋勬€诲帤搴︼紱涓烘瘡灞傝啘鐨勫帤搴︼紱2涓烘瘡灞傝啘鐨勬笚閫忕郴鏁般€備粠璇ュ叕寮忓彲浠ョ湅鍑猴紝闃婚殧鎬т富瑕佸彇鍐充簬闃婚殧鎬ф渶濂界殑涓€灞傜殑闃婚殧鎬э紝澶嶅悎鑶滅殑鍏朵粬閮ㄥ垎瀵归樆闅旀€у彧鏄捣浜嗚浇浣撲綔鐢ㄣ€傞殢鐫€楂樿仛鐗╂潗鏂欏湪鍖呰甯傚満涓簲鐢ㄩ鍩熷強闇€姹傞噺鐨勫姞澶э紝鏂板瀷鍔熻兘鏉愭枡寮€鍙戣繘搴︿笉鏂姞蹇紝闃婚殧鎬ц杽鑶滅爺鍙戞祴璇曞凡涓嶅啀灞€闄愪簬娓楅€忕郴鏁般€佹笚閫忛噺绛夋寚鏍囦笂锛屽鎵╂暎绯绘暟銆佹憾瑙e害绯绘暟绛夌洿鎺ュ奖鍝嶅悜娓楅€忓弬鏁扮殑娴嬭瘯闇€姹傞€愭笎澧炲锛屾潗鏂欑殑闃婚殧娴嬭瘯宸叉鍏ラ€愭笎瀹屽杽鐨勮繃绋嬨€?/span>
3.2 姘斾綋閫忚繃鐜囩郴鏁癙g
锛?锛?/span>
寮忎腑Qg-姘斾綋閫忚繃閲?锛汥-璇曟牱鍘氬害
3.3 姘磋捀姘旈€忚繃鐜囩郴鏁癙v
锛?锛?/span>
寮忎腑WVT-姘磋捀姘旈€忚繃绯绘暟锛汥-璇曟牱鍘氬害锛?/span>鈻?/span>P-璇曟牱涓や晶鐨勬按钂告皵鍘嬪樊
琛? 甯歌闃婚殧鎬ф潗鏂欑殑閫忚繃绯绘暟
锛堝崟浣嶏細锛?/span>
閫忚繃绯绘暟
楂樿仛鐗?/span>
|
姘ф皵
|
浜屾哀鍖栫⒊
|
姘?/span>
|
EVOH锛堜箼鐑?9%锛?/span>
|
0.1
|
0.5
|
20-25
|
EVOH锛堜箼鐑?8%锛?/span>
|
0.4
|
6
|
40-70
|
PVDC鍏辫仛鐗?/span>
|
0.5-4
|
1.2
|
0.2-6
|
PAN鍏辫仛鐗?/span>
|
8
|
16
|
50
|
PEN
|
12-22
|
50
|
5-9
|
PA-66
|
15-30
|
50-70
|
-
|
PA-6
|
25-40
|
150-200
|
150
|
PET
|
49-90
|
180
|
18-30
|
4銆?/span>濉戞枡钖勮啘闃婚殧鎬х殑妫€娴?/span>
鍦ㄩ€夋嫨鍖呰鏉愭枡骞惰繘琛屾潗鏂欑殑缁撴瀯璁捐鏃讹紝濡備綍妫€娴嬫潗鏂欑殑闃婚殧鎬ф寚鏍囷紝鏄褰撳叾鍐查渶瑕佽В鍐崇殑闂銆傝瘯楠屾柟娉曠殑閫夋嫨浠ュ強鏁版嵁涔嬮棿鏄惁鍏锋湁鍙瘮鎬ч兘鏄叧娉ㄧ殑鐒︾偣銆傜敱浜庢潗鏂欏姘ф皵浠ュ強姘磋捀姘旈樆闅旀€х殑妫€娴嬮渶姹傛渶寮猴紝鍥犳妫€娴嬪彂灞曞緢蹇€傚父鐢ㄧ殑姘ф皵閫忚繃鎬ф娴嬫柟娉曟湁锛氬帇宸硶锛堢湡绌烘硶鍜屽父鍘嬫硶锛夈€佺瓑鍘嬫硶锛堟哀浼犳劅鍣ㄦ硶锛夛紱姘磋捀姘旈樆闅旀€ф娴嬫柟娉曟湁锛氱О閲嶆硶銆佷紶鎰熷櫒娉曪紙婀垮害浼犳劅鍣ㄦ硶銆佺孩澶栨帰娴嬪櫒娉曘€佺數瑙f硶锛夛紝濡傚浘2鎵€绀恒€?/span>銆?锛?锛?銆?/span>闃婚殧鎬ф娴嬭澶囬兘鏄珮绔簿瀵嗕华鍣紝鑰屼笖娴嬭瘯鍏锋湁寰堝己鐨勭幆澧冧緷璧栨€э紝鏃犺缁存姢鍜屼娇鐢紝閮芥槸涓€鑸殑鏉愭枡鐗╃悊鎬ц兘妫€娴嬭澶囨墍涓嶈兘鐩告瘮鐨勩€?/span>
鍥? 闃婚殧鎬х殑娴嬭瘯鏂规硶
4.1閫忔皵鎬ф祴璇?/span>銆?锛?1锛?4銆?/span>
閫忔皵鎬ф祴璇曪紝涔熺О姘斾綋闃婚殧鎬ф祴璇曪紝涓昏鏄€冨療钖勮啘瀵瑰父瑙佹棤鏈烘皵浣撶殑闃婚殧鎬ц兘,鏄杽鑶滀富瑕佺殑闃婚殧鎬ф寚鏍囦箣涓€銆傞€氬父妫€娴嬬殑鏄鏂欒杽鑶滄潗鏂欑殑閫忔哀鎬э紝鐢变簬姘旇皟鍖呰锛?/span>Modified Atmosphere Packaging锛?/span>鐨勫箍娉涘簲鐢紝涔熼渶瀵瑰寘瑁呮潗鏂欑殑浜屾哀鍖栫⒊銆佹爱姘旈€忚繃鎬ц繘琛屾娴嬨€傝繖閲屼富瑕佷粙缁嶅帇宸硶涓庣瓑鍘嬫硶銆?/span>
4.1.1鍘嬪樊娉曪紙Differential-pressure method锛?/span>
绗﹀悎鍘嬪樊娉曞師鐞嗙殑鐢ㄤ簬妫€娴嬫哀姘旈€忚繃閲忕殑妫€娴嬩华鍣ㄦ湁鍥藉唴娴庡崡鍏板厜鏈虹數鎶€鏈湁闄愬叕鍙哥敓浜х殑VAC绯诲垪鍘嬪樊娉曟皵浣撴笚閫忎华锛屽叾鏈€楂樼簿搴﹀彲杈?.01cm3/m2•24h•0.1MPa銆傜湡绌烘硶鏄帇宸硶涓渶鍏蜂唬琛ㄦ€х殑涓€绉嶆祴璇曟柟娉曪紝涔熸槸姘斾綋娓楅€忓畾涔夌殑鏂规硶銆傚叾娴嬭瘯鍘熺悊锛堝鍥?鎵€绀猴級鏄埄鐢ㄨ瘯鏍峰皢娓楅€忚厰闅旀垚涓や釜鐙珛鐨勭┖闂达紝鍏堝皢璇曟牱涓や晶閮芥娊鎴愮湡绌猴紝鐒跺悗鍚戝叾涓竴渚у厖鍏?.1MPa锛堢粷鍘嬶級鐨勬祴璇曟皵浣擄紝鑰屽彟涓€渚у垯淇濇寔鐪熺┖鐘舵€併€傝繖鏍峰湪璇曟牱涓や晶灏卞舰鎴愪簡0.1MPa鐨勬祴璇曟皵浣撳帇宸紝娴嬭瘯姘斾綋娓楅€忛€氳繃钖勮啘杩涘叆浣庡帇渚у苟寮曡捣浣庡帇渚у帇鍔涚殑鍙樺寲銆傞€氳繃浣跨敤楂樼簿搴︽祴鍘嬭娴嬮噺浣庡帇渚х殑鍘嬪姏鍙樺寲閲忓氨鍙互鍒╃敤鍏紡璁$畻寰楀埌姘斾綋閫忚繃閲忋€?/span>
鍘嬪樊娉曞叿鏈夊娴嬭瘯姘斾綋娌℃湁閫夋嫨鎬с€佹祴璇曟垚鏈綆銆佽瘯楠屾垚鍔熺巼楂樼瓑鏄捐憲鐨勬娴嬩紭鍔匡紝鐒惰€屾渶涓虹獊鍑虹殑褰撴暟鍦ㄥ叾娴嬭瘯鐜涓皵浣?ldquo;绾噣”銆傚洜涓哄湪鐪熺┖娉曠殑璇曢獙杩囩▼涓細鍏堝鏁翠釜娴嬭瘯鑵旀娊鐪熺┖鑷?7Pa浠ヤ笅锛屽啀瀵规祴璇曚笂鑵斿厖鍏ョ函鍑€鐨勬祴璇曟皵浣擄紝杩欐牱鍦ㄦ暣涓瘯楠岀幆澧冧腑鐨勬潅璐ㄦ皵浣擄紙闈炶瘯楠屾皵浣擄級灏卞彲浠ュ拷鐣ヤ簡锛屽洜姝ゆ潅璐ㄦ皵浣撳彲鑳界粰璇曢獙甯︽潵鐨勫奖鍝嶅氨鑳芥帓闄や簡銆?/span>銆?4銆?/span>
鍥? 鍘嬪樊娉曡瘯楠屽師鐞嗗浘
4.1.2绛夊帇娉曪紙Equal-pressure method锛?/span>
鐩墠搴旂敤浜庨€忔皵鎬ф娴嬬殑绛夊帇娉曚富瑕佹槸浼犳劅鍣ㄦ硶锛屽畠涓昏鐢ㄤ簬姘ф皵閫忚繃鎬ф娴嬶紝娴嬭瘯鍘熺悊濡傚浘4鎵€绀猴細鍒╃敤璇曟牱灏嗘笚閫忚厰闅旀垚涓や釜鐙珛鐨勬皵娴佺郴缁燂紝涓€渚т负娴佸姩鐨勬祴璇曟皵浣擄紙鍙互鏄函姘ф皵鎴栨槸鍚哀姘旂殑娣峰悎姘斾綋锛夛紝鍙︿竴渚т负娴佸姩鐨勫共鐕ヨ浇姘旓紙姘皵锛夈€傝瘯鏍蜂袱杈圭殑鍘嬪姏鐩哥瓑锛屼絾姘ф皵鍒嗗帇涓嶅悓銆傚湪姘ф皵鐨勫垎鍘嬪樊浣滅敤涓嬶紝姘ф皵閫忚繃钖勮啘骞惰姘皵娴侀€佽嚦浼犳劅鍣ㄤ腑锛岀敱浼犳劅鍣ㄧ簿纭祴閲忓嚭姘皵娴佷腑鎼哄甫鐨勬哀姘旈噺锛屼粠鑰岃绠楀嚭鏉愭枡鐨勬哀姘旈€忚繃鐜囥€?/span>
绛夊帇娉曠殑绐佸嚭浼樼偣鏄彲浠ヨ繘琛屽鍣ㄩ€忔哀鎬ф娴嬶紝浣嗗湪娴嬭瘯姘斾綋鐨勯€氱敤鎬т笂涓嶅鍘嬪樊娉曞箍娉涖€傜敱浜庡湪绛夊帇娉曟祴璇曞師鐞嗕腑瀵硅浇姘旂殑闇€瑕佷娇寰楀湪璇ユ柟娉曚腑瀛樺湪涓ょ鏁伴噺鐩稿綋鐨勬皵浣擄紝褰撹瘯鏍蜂袱渚ф湁0.1MPa姘ф皵鍒嗗帇宸瓨鍦ㄧ殑鍚屾椂涔熸湁0.1MPa姘皵鍒嗗帇宸瓨鍦紝涓嶈繃瀹冧滑鐨勬搴︽柟鍚戞濂界浉鍙嶏紝鍥犳鍦ㄧ瓑鍘嬫硶涓綋姘ф皵娓楅€忛€氳繃钖勮啘鐨勫悓鏃舵爱姘旇繘琛岀潃閫嗗悜鐨勬笚閫忋€?/span>
鍥? 绛夊帇娉曡瘯楠屽師鐞?/span>
4.2閫忔箍鎬ф祴璇?/span>銆?2锛?3銆?/span>
鏉紡娉曪紝鍙堝彨绉伴噸娉曪紙weighing method锛夛紝鏄洰鍓嶆垜鍥藉浗瀹舵爣鍑嗗敮涓€璁ゅ彲鐨勯€忔箍鎬ф祴璇曟柟娉曘€傛垜鍥界殑璐ㄦ绯荤粺浠ュ強閫愭笎鍙戝睍璧锋潵鐨勪腑鍥藉寘瑁呭伐涓氳嚜涓婁笘绾?O骞翠唬璧峰湪杩涜鏉愭枡鐨勯€忔箍鎬ф娴嬫椂灏卞叏閮ㄩ噰鐢ㄦ澂寮忔硶銆傛澂寮忔硶鍙互鍒嗕负娓楅€忚繘鍏ラ€忔箍鏉殑澧為噸娉曞拰娓楅€忕寮€閫忔箍鏉殑鍑忛噸娉曚袱绉嶆祴璇曟柟娉曘€傚閲嶆硶鐨勯€忔箍鏉腑鏀炬湁骞茬嚗鍓傦紝鍙涓洪€忔箍鏉唴閮ㄤ负0锛匯H锛岃瘯楠岀幆澧冧负38鈩?nbsp;銆?0锛匯H锛涜€屽湪鍑忛噸娉曚腑閫忔箍鏉唴鐩涙湁钂搁姘存垨鏄ケ鍜岀洂婧舵恫锛屽鏋滅洓鐨勬槸钂搁姘村彲璁や负閫忔箍鏉唴閮ㄤ负100锛匯H锛岃瘯楠岀幆澧冧负38鈩?nbsp;銆?O锛匯H銆?/span>
5銆?/span>甯歌楂橀樆闅旇杽鑶滄潗鏂欑殑闃婚殧鎬у垎鏋?/span>銆?锛?锛?锛?锛?5锝?9銆?/span>
钖勮啘闃婚殧鎬ц兘鏄寚瀵瑰皬鍒嗗瓙姘斾綋濡傛哀銆佹按姹姐€佹恫浣撳強姘斿懗绛夌殑灞忚斀鑳藉姏锛岄樆闅旀€ц杽鑶滀富瑕佺敤浜庨鍝佸拰鍖昏嵂鍖呰锛岀‘淇濆寘瑁呯墿鍦ㄥ偍瀛樸€佽繍杈撹繃绋嬩腑淇濋淇濆懗涓嶅彉璐紝浠ュ欢闀垮叾淇濊川鏈熷拰璐ф灦瀵垮懡銆傞殢鐫€鐢熸椿鑺傚鐨勫姞蹇拰鐢熸椿姘村钩鐨勬彁楂?nbsp;鍚勭鏂逛究椋熷搧濡傝倝鍒跺搧銆佷钩鍒跺搧銆佹饭鍗ゅ埗鍝佺瓑鐨勯渶姹傞噺瓒婃潵瓒婂ぇ锛屽鍖昏嵂浜у搧鐨勮川閲忚姹備篃瓒婃潵瓒婇珮锛屾澶栭樆闅旀€у鏂欒杽鑶滀篃骞挎硾搴旂敤鍦ㄥ寲濡嗗搧銆佽尪鍙躲€佸寲瀛﹁瘯鍓傘€佸啘鑽€侀鏂欍€侀ゲ鏂欑瓑浜у搧鐨勫寘瑁咃紝鍥犳闃婚殧鎬ц杽鑶滃凡鎴愪负鍚勫浗绔炵浉寮€鍙戠殑鐑偣銆?/span>
鍦ㄩ樆闅旀€у鏂欒杽鑶滀腑闃婚殧鎬ф爲鑴傜殑浣跨敤鏄叧閿紝涓昏鏈夎仛涔欑儻閱?PVA)銆佷箼鐑箼鐑唶鍏辫仛鐗?EVOH)銆佸亸姘箼鐑叡鑱氱墿(PVDC)銆佽仛钀樹簩鐢查吀涔欎簩閱囬叝(PEN)銆佺壒娈婂凹榫?MXD6)銆佸凹榫?PA)銆佽仛瀵硅嫰浜岀敳閰镐箼浜岄唶(PET)绛夛紝鍦ㄨ繖浜涢樆闅旀€ф爲鑴備腑锛孭VA銆丒VOH銆丳VDC銆丳EN灞炰簬楂橀樆闅旀€ф潗鏂欙紝鏈€甯哥敤鐨勬槸PVDC鍜孍VOH锛岃€孭A涓嶱ET鐨勯樆闅旀€х浉杩戯紝灞炰簬涓樆闅旀€ф潗鏂欍€?/span>銆?5銆?/span>
5.1 PVDC锛堣仛鍋忎簩姘箼鐑?/span>锛?/span>Polyvinylidene Chloride锛?/span> 銆€銆€PVDC鏄綋浠婁笘鐣屼笂缁煎悎闃婚殧鎬ф渶濂界殑楂樺垎瀛愭潗鏂欙紝涔?/span>鏄渶鏃╁紑鍙戠殑楂橀樆闅旀€ф潗鏂欙紝浣跨敤鍘嗗彶杈冮暱锛屼粠8O骞翠唬寮€濮嬪箍娉涚敤浜庨鍝佸寘瑁咃紝鍥藉唴涓昏鐢ㄤ綔鑲犺。鑶滐紝PVDC鍏锋湁鏋佸ソ鐨勯樆姘ч樆婀挎€ц兘锛?nbsp;浣嗘槸鐢变簬鍚隘鑰屽彈鍒扮幆淇濅汉鍦熺殑鍙嶅锛屽湪娆ф床鐨勪竴浜涘浗瀹跺睘绂佺敤鏉愭枡銆?/span> PVDC娑傝钖勮啘浣跨敤閲忕壒鍒锛?/span>鐢变簬绾殑PVDC杞寲娓╁害楂橈紝涓斾笌鍏跺垎瑙f俯搴︽帴杩戯紝鍙堜笌涓€鑸濉戝墏鐩告憾鎬у樊锛屾晠鍔犵儹鎴愬瀷鍥伴毦鑰屼笖闅句互鐩存帴搴旂敤銆傚疄闄呬娇鐢ㄧ殑PVDC钖勮啘澶氫负鍋忔隘涔欑儻(VDC)鍜屾隘涔欑儻(VC)鐨勫叡鑱氱墿銆?/span> 銆€銆€PVDC鐨勭壒鐐规槸浣庨€忚繃鎬с€侀樆闅旀€у拰鑰愬寲瀛﹁嵂鍝佹€с€傛垜鍥絇VDC鏄即闅忕潃鐏吙鑲犲姞宸ユ妧鏈紩杩涘苟寰楀埌鍙戝睍鐨勩€傜洰鍓嶅凡骞挎硾搴旂敤浜庨鍝併€佸嵎鐑熴€侀ギ鏂欎繚椴滃拰闅斿懗锛屼互鍙婂寲宸ャ€佸尰鑽€佺數瀛愬拰鍐涘伐浜т笟鐨勯槻娼寘瑁?/span>銆?/span>
5.2 EVOH锛堜箼鐑?/span>—涔欑儻閱囧叡鑱氱墿锛?/span>Ethylene - vinyl alcohol copolymer锛?/span> 銆€銆€EVOH涓€鐩存槸搴旂敤鏈€澶氱殑楂橀樆闅旀€ф潗鏂欍€?/span>EVOH鐨勯樆闅旀€ц兘鍙栧喅浜庝箼鐑殑鍚噺锛屼竴鑸潵璇?/span>锛?/span>褰撲箼鐑惈閲忓鍔犳椂鍊欙紝姘斾綋闃婚殧鎬т笅闄嶏紝浣嗘槗浜庡姞宸ャ€侲VOH鏄捐憲鐗圭偣鏄姘斾綋鍏锋湁鏋佸ソ鐨勯樆闅旀€у拰鏋佸ソ鍔犲伐鎬э紝鍙﹀閫忔槑鎬с€佸厜娉芥€с€佹満姊板己搴︺€佷几缂╂€с€佽€愮(鎬с€佽€愬瘨鎬у拰琛ㄩ潰寮哄害閮介潪甯镐紭寮傘€?/span>
EVOH缁撴瀯涓瓨鍦ㄧ緹鍩猴紝EVOH鍏锋湁浜叉按鎬у拰鍚告箍鎬э紝鏁?/span>EVOH甯镐綔澶嶅悎鑶滀腑闂撮樆闅斿眰锛屽簲鐢ㄥ湪鎵€鏈夌殑纭€у拰杞€у寘瑁呬腑锛涘湪椋熷搧涓氫腑鐢ㄤ簬鏃犺弻鍖呰銆佺儹缃愬拰钂哥叜琚嬶紝鍖呰濂跺埗鍝併€佽倝绫汇€佹灉姹佺綈澶村拰璋冨懗鍝侊紱鍦ㄩ潪椋熷搧鏂归潰锛岀敤浜庡寘瑁呮憾鍓傘€佸寲瀛﹁嵂鍝佺瓑銆傚湪椋熷搧鍖呰鏂归潰锛孍VOH鐨勫鏂欏鍣ㄥ畬鍏ㄥ彲浠ユ浛浠g幓鐠冨拰閲戝睘瀹瑰櫒锛屽浗鍐呭瀹舵按浜у叕鍙稿嚭鍙f捣椴滃氨浣?/span>鐢?/span>PE/EVOH/PA/EVOH/PE浜斿眰鍏辨尋鍑鸿啘鐪熺┖鍖呰銆?/span> 5.3 灏奸緳绫伙紙Nylon锛?/span>
灏奸緳绫诲寘瑁呮潗鏂欎互鍓嶄竴鐩翠娇鐢ㄥ凹榫?/span>-6銆備絾鏄凹榫?/span>-6鐨勬皵瀵嗘€т笉鐞嗘兂銆?/span>閰拌兒鍩烘槗褰㈡垚姘㈤敭杩戝勾鏉ユ棩鏈柊寮€鍙戝嚭鏉ョ殑涓€绉?/span>鏂板瀷鏉愭枡——鐗规畩灏奸緳(MXD6)锛屽叾姘斿瘑鎬ф瘮“灏奸緳6”楂?0鍊嶄箣澶?/span>锛?/span>瀹冩槸鐢遍棿鑻簩鐢茶兒鍜屽繁浜岄吀鐨勭缉鑱氫骇鐗╋紝涓哄崐缁撴櫠鑱氬悎鐗?/span>锛?/span>鍏锋湁鍑鸿壊鐨勯樆閫忔€э紝涓斿叾闃婚€忔€т笉闅忔箍搴︾殑澧炲姞鑰屼笅闄?/span>銆備富瑕佺敤浜庨珮闃婚€忔€ц杽鑶滃拰楂樺己搴﹂樆闅旀€ф潗鏂欙紝鍙﹀杩樺彲鐩存帴鐢ㄤ簬椋熷搧鍖呰棰嗗煙锛岀敤浜庨渶瑕佽捀鐓姞宸ョ殑椋熷搧鍖呰銆?/span>鍦ㄦ娲诧紝鐢变簬鐜淇濇姢闂绐佸嚭锛屼綔涓篜VDC绫昏杽鑶滅殑鏇夸唬浜у搧锛孧XD6灏奸緳銆?6銆?/span>鐨勪娇鐢ㄩ噺鏄緢澶х殑銆?/span>杩戝勾鏉ラ殢鐫€绾崇背鎶€鏈殑鏂拌捣锛岃仛閰拌兒绾崇背鎶€鏈鍚堟潗鏂欑殑鐮旂┒鏋佷负娲昏穬锛屽浗鍐呭宸叉垚鍔熷紑鍙戜簡寰堝鑱氶叞鑳虹撼绫冲鍚堟潗鏂?/span>銆?/span>
5.4 PET锛堣仛瀵硅嫰浜岀敳閰镐箼浜岄唶閰紝Polyethylene terephthalate锛?/span>
PET鏈夎緝濂界殑姘斾綋(姘ф皵銆佷簩姘у寲纰冲強姘存苯)闃婚殧鎬?灞炰簬涓瓑闃婚殧鏉愭枡锛?/span>閫氳繃閫傚綋鐨勬敼鎬ф柟娉曪紝濡傚叡娣枫€佸鍚堛€佸~鍏呯瓑鏂规硶閮藉彲涓嶅悓绋嬪害鍦版彁楂樺叾闃婚殧鎬ц兘銆傚叿鏈夐樆闅旀€х殑楂樺垎瀛愭潗鏂欏湪搴旂敤涓湁涓ゅぇ浼樺娍锛氫竴鏄兘鏈夋晥鐨勯槻姝㈢┖姘斾腑鐨勬哀姘旈€氳繃瀹瑰櫒鐨勫櫒澹佽繘鍏ュ埌瀹瑰櫒涓紝鑳芥湁鏁堢殑淇濇姢濉戞枡瀹瑰櫒鎵€鍖呰鐨勯鍝佽嵂鍝佺瓑澶氱鍟嗗搧锛岄伩鍏嶅畠浠洜鍙楁哀姘旂殑浣滅敤鑰屽紩璧峰彉鍧€锛屼粠鑰屽欢闀垮晢鍝佺殑淇濊川鏈熷強璐ф灦鏈?/span>锛?/span>鍏朵簩鏄槻姝㈠鍣ㄤ腑鎵€鍖呰鐨勯潪鏋佹€ф憾鍓傜瓑鍟嗗搧閫氳繃瀹瑰櫒鍣ㄥ鑰屾暎閫革紝鍑忓皯鍟嗗搧鍌ㄥ瓨杩囩▼涓殑鎹熷け骞舵敼鍠勭幆澧冭川閲忋€?/span>
5.5 PVA锛堣仛涔欑儻閱囷紝polyvinyl alcohol锛?/span>
PVA闃绘皵鎬у崄鍒嗕紭鑹紝鏄鏂欎腑闃绘皵鏈€濂界殑銆傞唶钂告苯涔熼毦浠ユ笚閫忥紝鏇翠笉鏄撻€忚繃绌烘皵锛屼絾鏄敱浜庡惈鏈夊ぇ閲忕殑缇熷熀锛屽惛姘存€у己锛屾箍寮哄害浣庯紝涓旈樆姘旀€ч殢鍚告箍閲忕殑澧炲ぇ鑰屾湁鎵€涓嬮檷锛屾妸涔欑儻閱囦笌涔欑儻鍏辫仛寰楀埌鐨凟VOH(涓€鑸箼鐑惈閲忎负25锛咃綖45锛?鍑忓皯浜嗘潗鏂欎腑鐨勭緹鍩猴紝浠庤€屽叾闃绘箍鎬ц兘澶уぇ鏀瑰杽锛屽敖绠¢樆姘ф€ф湁鎵€涓嬮檷锛屼絾浠嶇劧鏄瘮PVDC浼樿壇鐨勯珮闃婚殧鎬ф潗鏂欙紝鍥犳PVA涓嶦VOH鐨勭己鐐瑰湪浜庢潗鏂欎腑鐨勭緹鍩烘槗涓庣幆澧冧腑鐨勬按缁撳悎鎴愭阿閿紝鍏堕樆婀挎€ц兘鍙楁箍搴﹀奖鍝嶈緝澶э紝鏁呭彧鑳界敤浜庡唴灞傘€?/span>
6銆侀樆闅旀€х爺绌剁幇鐘跺強灞曟湜銆?7锝?6銆?/span>
浜屽崄涓栫邯涔濆崄骞翠唬鍒濆熀鏈笂鏈?绉嶉樆闅斿寘瑁呰杽鑶滐細灏奸緳銆丳VDC锛堣仛鍋忎簩姘箼鐑級銆丒VOH 锛堜箼鐑唶鍏辫仛鏍戣剛锛夊拰閲戝睘鍖栧鍚堣杽鑶溿€備絾鏄秷璐硅€呰姹傛洿鍔犳柊椴滃懗缇庛€佽川閲忔洿浼樼殑椋熷搧锛岃繖淇冭繘鍖呰涓氱爺绌跺嚭鏇村厛杩涚殑鍖呰鏂规銆備粖澶╋紝浜轰滑鍙互浜彈澶氳揪15灞傜殑澶嶅悎钖勮啘銆傚浗澶栫殑涓撳鎶婇珮闃婚殧鎬ц蒋鍖呰鏉愭枡瀹氫箟涓?ldquo;浠讳綍鑳藉闃绘鍙︿竴绉嶇墿璐紙涓嶇鏄皵浣撴垨棣欏懗锛変镜鍏ョ殑鏉愭枡”銆備粖澶╂墍浣跨敤鐨勯珮闃婚殧鎬ф潗鏂欓€氬父灞炰簬闃绘哀鏉愭枡锛屽叾涓渶甯哥敤鐨勬湁EVOH鍜屽凹榫欐爲鑴傦紝瀹冧滑鍚岃仛涔欑儻涓€璧蜂娇鐢紙鑱氫箼鐑湪杩欓噷璧烽樆姘存垨闃叉疆浣滅敤锛夈€侾P鍜孭ET缁忓父鐢ㄤ綔楂橀樆闅旀€у鍚堣杽鑶滅殑鍩鸿啘銆備粖澶╋紝浼樿川闃婚殧鎬ц杽鑶滄垨楂橀樆闅旀€ц蒋鍖呰绐佸嚭鍦板簲鐢ㄥ湪闆跺敭椋熷搧甯傚満銆?/span>
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