绶ㄨ集鏈PBT锛氱煡璀�(sh铆)鐢�(ch菐n)娆�(qu谩n)澹佸

銆€銆€鏄寚涓€鍦�(gu贸)鍦ㄤ繚璀�(h霉)鐢�(ch菐n)娆�(qu谩n)鐨勫悕缇╀笅锛岄噰鍙栬垏璨�(m脿o)鏄撴湁闂�(gu膩n)鐨�鐭ヨ瓨(sh铆)鐢�(ch菐n)娆�(qu谩n)淇濊(h霉)绔嬫硶銆佽鏀�銆佸徃娉曠瓑鏂归潰鐨勬帾鏂姐€�

绶ㄨ集鏈PBT:鑱氬皪(du矛)鑻簩鐢查吀涓佷簩閱囬叝

PBT姝峰彶

銆€銆€PBT鏈€鏃╂槸寰峰湅(gu贸)绉戝(xu茅)瀹禤.Schlack浜�1942骞寸爺鍒惰€屾垚锛屼箣鍚�缇庡湅(gu贸)Celanese鍏徃锛堢従(xi脿n)鐐篢(m茅n)icona锛夐€�(j矛n)琛屽伐妤�(y猫)闁�(k膩i)鐧�(f膩)锛屽苟浠elanex鍟嗗搧鍚嶄笂甯�锛屼簬1970骞翠互30%鐜荤拑绾栧寮�(qi谩ng)濉戞枡鎶曟斁甯傚牬(ch菐ng)锛屽晢鍝佸悕鐐篨-917锛屽悗鏀圭偤CELANEX銆�1971骞碋astman鍏徃鎺ㄥ嚭浜嗘湁鐜荤拑绾栧寮�(qi谩ng)鐠夊拰涓嶅寮�(qi谩ng)鐨勭敘(ch菐n)鍝�锛屽晢鍝佸悕Tenite(PTMT)锛涘悓骞碐E鍏徃涔熼枊(k膩i)鐧�(f膩)鍑哄悓椤�(l猫i)鐢�(ch菐n)鍝�锛屾湁涓嶅寮�(qi谩ng)銆佸寮�(qi谩ng)鍜岃嚜鐔勬€х殑涓夊€�(g猫)鍝佺ó銆傞毃鍚庝笘鐣岀煡鍚嶅粻(ch菐ng)鍟嗗痉鍦�(gu贸)BASF銆丅ayer銆佺編鍦�(gu贸)GE銆乀icona锛�鏃ユ湰Toray銆佷笁鑿卞寲瀛�(xu茅)锛�鑷�(t谩i)鐏�鏂板厜鍚堢簴銆�闀�(zh菐ng)鏄�浜洪€犳ü(sh霉)鑴�銆�鍗椾簽濉戞枡绛夊叕鍙稿厛鍚庢姇鍏ョ敓鐢�(ch菐n)琛屽垪锛屽叏鐞冪敓鐢�(ch菐n)寤�(ch菐ng)鍟嗗叡瑷�(j矛)涓夊崄浣欏銆�

PBT鐞嗗寲鐗规€�

銆€銆€PBT鐐轰钩鐧借壊鍗婇€忔槑鍒颁笉閫忔槑銆佺祼(ji茅)鏅跺瀷鐔卞鎬ц仛閰�銆傚叿鏈夐珮鑰愮啽鎬�銆侀煂鎬�銆佽€愮柌鍕炴€э紝鑷饯(r霉n)婊�銆佷綆鎽� 鎿︾郴鏁�(sh霉)锛岃€愬€欐€�銆佸惛姘寸巼浣�锛屽儏鐐�0.1%锛屽湪娼繒鐠�(hu谩n)澧冧腑浠嶄繚鎸佸悇绋墿鎬э紙鍖呮嫭闆绘€ц兘锛�锛岄浕绲曠罚鎬�锛屼絾楂旂⿳闆婚樆銆�浠嬮浕鎼嶈€�澶�銆傝€愮啽姘�銆佸牽椤�(l猫i)銆侀吀椤�(l猫i)銆佹补椤�(l猫i)銆佷絾鏄撳彈楣靛寲鐑翠镜铦�锛岃€�姘磋В鎬у樊锛屼綆婧笅鍙繀閫熺祼(ji茅)鏅�锛屾垚鍨嬫€ц壇濂�銆傜己榛�(di菐n)鏄己鍙ｆ矕鎿婂挤(qi谩ng)搴︿綆 锛屾垚鍨嬫敹绺巼澶� 銆傛晠澶ч儴鍒嗛噰鐢�鐜荤拑绾栫董澧炲挤(qi谩ng)鎴栫劇(w煤)姗�(j墨)濉厖鏀规€�锛屽叾鎷変几寮�(qi谩ng)搴�銆佸綆鏇插挤(qi谩ng)搴﹀彲鎻愰珮涓€鍊嶄互涓�锛岀啽璁婂舰婧害涔熷ぇ骞呮彁楂�銆傚彲浠ュ湪140鈩冧笅闀�(zh菐ng)鏈熷伐浣�锛岀幓绾栧寮�(qi谩ng)鍚庡埗鍝佺副銆佹┇鍚戞敹绺巼涓嶄竴鑷�锛屾槗浣垮埗鍝佺櫦(f膩)鐢熺抗鏇�銆�

PBT鐕冪噿閼掑垾

銆€銆€涓嶆槗鐕冪噿锛岀噧鐕掓檪(sh铆)鐒�(w煤)娑查珨娴佷笅锛岄洟闁�(k膩i)鐏劙鍚庡湪5绉掗悩鍏�(n猫i)鐔勬粎锛岋紙鐩镐技浜嶱C锛�

PBT鍔犲伐宸ヨ棟

銆€銆€PBT鍙堝彲绋�(ch膿ng)鐐虹啽濉戞€ц仛閰鏂�锛岀偤閬╃敤浜庝笉鍚屽姞宸ユキ(y猫)鑰呬娇鐢紝涓€鑸灏戞渻(hu矛)鍔犲叆娣诲姞鍔�锛屾垨鑸囧叾瀹冨鏂欐懟娣�锛岄毃钁楁坊鍔犵墿姣斾緥涓嶅悓锛屽彲鍒堕€犱笉鍚岃(gu墨)鏍肩殑鐢�(ch菐n)鍝�銆傜敱浜嶱BT鍏锋湁鑰愮啽鎬с€佽€愬€欐€�銆佽€�钘ュ搧鎬�銆侀浕姘ｇ壒鎬т匠銆佸惛姘存€у皬銆佸厜婢よ壇濂�锛屽唬娉涙噳(y墨ng)鐢ㄤ簬闆诲瓙闆诲櫒銆�姹借粖(ch膿)闆朵欢銆佹(j墨)姊�銆佸鐢ㄥ搧绛�锛岃€孭BT鐢�(ch菐n)鍝佸張鑸嘝PS銆丳C銆丳OM銆丳A绛夊叡绋�(ch膿ng)鐐轰簲澶ф硾鐢�宸ョ▼濉戞枡銆� 銆€銆€PBT 绲�(ji茅)鏅堕€熷害蹇�锛屾渶閬╁疁鍔犲伐鏂规硶鐐烘敞濉�锛屽叾浠栨柟娉曢倓鏈夋摖鍑恒€佸惞濉�銆佹秱瑕嗗拰鍚勭ó浜屾鍔犲伐鎴愬瀷锛屾垚鍨嬪墠闇€闋�(y霉)骞茬嚗锛屾按鍒嗗惈閲忚闄嶈嚦0.02%銆�

PBT鐨勬敞濉戝伐钘濈壒鎬ц垏宸ヨ棟鍙冩暩(sh霉)鐨勮ō(sh猫)瀹�

銆€銆€PBT鐨勮仛鍚堝伐钘濇垚鐔�銆佹垚鏈純浣�锛屾垚鍨嬪姞宸ュ鏄撱€傛湭鏀规€BT鎬ц兘涓嶄匠锛屽(sh铆)闅涙噳(y墨ng)鐢ㄨ灏�(du矛)PBT閫�(j矛n)琛屾敼鎬э紝鍏朵腑锛岀幓鐠冪簴缍寮�(qi谩ng)鏀规€х墝铏�(h脿o)鍗燩BT鐨�70锛呬互涓娿€�

1 PBT鐨勫伐钘濈壒鎬�

銆€銆€PBT鍏锋湁鏄庨’鐨�鐔旈粸(di菐n)锛岀啍榛�(di菐n)鐐�225锝�235鈩冿紝鏄祼(ji茅)鏅跺瀷鏉愭枡锛岀祼(ji茅)鏅跺害鍙仈(d谩)40锛�銆� 銆€銆€PBT鐔旈珨鐨勭矘搴﹀彈婧害鐨勫奖闊夸笉濡傚壀鍒囨噳(y墨ng)鍔涢偅涔堝ぇ锛屽洜姝�锛屽湪娉ㄥ涓�锛屾敞灏勫鍔涘皪(du矛)PBT鐔旈珨娴佸嫊(d貌ng)鎬у奖 闊挎槸鏄庨’銆� 銆€銆€PBT鍦ㄧ啍铻嶇媭鎱�(t脿i)涓嬫祦鍕�(d貌ng)鎬уソ锛岀矘搴︿綆锛屽儏娆′簬灏奸緧锛屽湪鎴愬瀷鏄撶櫦(f膩)鐢熲€滄祦寤垛€濈従(xi脿n)璞�銆� 銆€銆€PBT鎴愬瀷鍒跺搧鍚勫悜鐣版€с€侾BT鍦ㄩ珮婧笅閬囨按鏄撻檷瑙�銆�

2 娉ㄥ姗�(j墨)

銆€銆€閬哥敤铻烘】寮�娉ㄥ姗�(j墨)鏅�(sh铆)銆傛噳(y墨ng)鑰冩叜濡備笅骞鹃粸(di菐n)銆� 銆€?銆佸儲鐮磋繑鎸犳槯鐙箮?y墨ng)鎺у埗鍦ㄦ敞濉戞(j墨)椤嶅畾鏈€澶ф敞灏勯噺鐨�30锛咃綖80锛呫€備笉瀹滅敤澶ф敞濉戞(j墨)鐢熺敘(ch菐n)灏忓埗鍝�銆� 銆€銆€鈶℃噳(y墨ng)閬哥敤婕歌畩鍨嬩笁娈佃灪妗�锛岄暦(zh菐ng)寰戞瘮鐐�15锝�20锛屽绺瘮鐐�2.5锝�3.0銆� 銆€銆€鈶㈡噳(y墨ng)閬哥敤鑷帠寮忓櫞鍢�锛屽苟甯舵湁鍔犵啽鎺ф韩瑁濈疆銆� 銆€?銆佽寜璇斿皻濡ユ灋鎶€?j铆)PBT鏅�(sh铆)锛屾敞濉戞(j墨)鐨勬湁闂�(gu膩n)閮ㄤ欢鎳�(y墨ng)缍�(j墨ng)闃茶厫铏曠悊銆�

3 鍒跺搧鑸囨ā鍏疯ō(sh猫)瑷�(j矛)

銆€?銆佸儲鐮磋繑鏆└鐐旂伆棰傤伔鐦㈢悕BT灏�(du矛)缂哄彛寰堟晱鎰�锛屽洜姝�锛屽埗鍝佺殑鐩磋绛夐亷(gu貌)娓¤檿鎳�(y墨ng)閲囩敤鍦撳姬閫ｆ帴銆� 銆€?銆佽皷閿ょ敺瑷瓸T鐨勬垚鍨嬫敹绺巼杓冨ぇ锛屽湪1.7锛咃綖2.3锛�锛屾ā鍏疯鏈変竴瀹氱殑鑴ā鏂滃害銆� 銆€?銆佸嫲锛炲挐鏋邦€砄(sh猫)鎺掓埃瀛旀垨鎺掓埃妲�銆� 銆€?銆佽弧閮ㄨ瘶鐩抖鎻€撹焼? 銆€?銆佽徑锛炲挐鏌橭(sh猫)缃帶婧缃�銆傛ā鍏锋渶楂樻韩搴︿笉鑳借秴閬�(gu貌)100鈩�銆� 銆€?銆佹嫯鏋炴妧?j铆)PBT鎴愬瀷锛屾ā鍏疯〃闈㈣閸嶉壔锛屼互闃茶厫銆�

4 鍘熸枡婧�(zh菙n)鍌�

銆€銆€娉ㄥ鍓嶈閫�(j矛n)琛屽共鐕ャ€佽灏囨按鍒嗗惈閲忔帶鍒跺湪0.02锛呬互涓�銆傞噰鐢ㄧ啽棰�(f膿ng)寰挵(hu谩n)骞茬嚗鏅�(sh铆)锛岀暥(d膩ng)婧害鐐�105鈩冦€�120鈩冩垨140鈩冩檪(sh铆)锛屾墍灏�(du矛)鎳�(y墨ng)鐨勬檪(sh铆)闁撲笉瓒呴亷(gu貌)6h銆�4h銆�2h銆傛枡灞ゅ帤搴︿綆浜�30mm銆�

5 娉ㄥ宸ヨ棟鍙冩暩(sh霉)

銆€銆€鈶犳敞灏勬韩搴� PBT鐨�鍒嗚В婧害鐐�280鈩冿紝鎵€浠ュ(sh铆)闅涚敓鐢�(ch菐n)涓竴鑸帶鍒跺湪240-260鈩冧箣闁�銆� 銆€銆€鈶℃敞灏勫鍔涙敞灏勫鍔涗竴鑸偤50锝�100MPa銆� 銆€?銆佸湬鈶告笇淇�?PBT鍐峰嵒閫熷害蹇紝鍥犳瑕侀噰鐢ㄨ純蹇殑娉ㄥ皠閫熺巼銆� 銆€?銆佽媹杓籙杞�(zhu菐n)閫熷拰鑳屽 鎴愬瀷PBT鐨勮灪妗胯綁(zhu菐n)閫熶笉瀹滆秴閬�(gu貌)80r/min锛屼竴鑸湪25锝�60r/min涔嬮枔銆傝儗澹撲竴鑸偤娉ㄥ皠澹撳姏鐨�10锛咃綖15锛�銆� 銆€?銆佽徑锛為偡鍥�?涓€鑸帶鍒跺湪70锝�80鈩�锛屽悇閮ㄤ綅鐨勬韩搴﹀樊涓嶈秴閬�(gu貌)10鈩�銆� 銆€銆€鈶ユ垚鍨嬪懆鏈� 涓€鑸儏娉佷笅鐐�15锝�60 s銆�

6 娉ㄦ剰浜嬮爡(xi脿ng)

銆€銆€鈶犲啀鐢熸枡鐨勪娇鐢� 鍐嶇敓鏂欒垏鏂版枡鐨勬瘮渚嬩竴鑸湪25锛咃綖75锛�銆� 銆€銆€鈶¤劔妯″姂鐨勪娇鐢� 涓€鑸儏娉佷笅涓嶄娇鐢ㄨ劔妯″姂锛屽繀瑕佹檪(sh铆)鍙噰鐢ㄦ湁姗�(j墨)纭呰劔妯″姂銆� 銆€?銆佸紒顥濩(j墨)铏曠悊 PBT鐨勫仠姗�(j墨)鏅�(sh铆)闁撳湪30min浠�?x煤n)?n猫i)锛屽彲灏囨韩搴﹂檷鍒�200鈩冩檪(sh铆)鍋滄(j墨)銆傞暦(zh菐ng)鏈熷仠姗�(j墨)鍚庡啀鐢熺敘(ch菐n)鏅�(sh铆)锛岃灏囨枡绛掑収(n猫i)鐨勬枡鎺掔┖锛屽啀鍔犲叆鏂版枡鎵嶈兘閫�(j矛n)琛屾甯哥敓鐢�(ch菐n)銆� 銆€銆€鈶ｅ埗鍝佺殑鍚庤檿鐞� 涓€鑸儏娉佷笅涓嶉渶瑕侀€�(j矛n)琛岃檿鐞�锛屽繀瑕佹檪(sh铆)鍦�120鈩冩檪(sh铆)铏曠悊1锝�2h銆�

绶ㄨ集鏈涓湅(gu贸)PBT鐧�(f膩)灞曠従(xi脿n)鐙€鑸囧墠鏅�

銆€銆€PBT妯�(sh霉)鑴傚嵆鑱氬皪(du矛)鑻簩鐢查吀涓佷簩閱囬叝锛屼綔鐐轰簲澶ч€氱敤宸ョ▼濉戞枡涔嬩竴锛屼富瑕佺敤浜嶱BT鏀规€�銆丳BT鎶界挡銆佹媺鑶�銆佸厜绾栬(h霉)濂楃瓑闋�(l菒ng)鍩燂紝鍦ㄥ寮�(qi谩ng)鏀规€у悗鍙唬娉涙噳(y墨ng)鐢ㄤ簬姹借粖(ch膿)鍒堕€�銆侀浕瀛愰浕姘�銆佸剙琛ㄥ剙鍣�銆佺収鏄庣敤鍏�銆佸闆�銆佺础绻�銆佹(j墨)姊板拰閫氳▕绛夐牁(l菒ng)鍩�銆傝繎骞翠締(l谩i)鐢变簬鍦�(gu贸)鍏�(n猫i)鐩搁棞(gu膩n)鐢�(ch菐n)妤�(y猫)鐨勭櫦(f膩)灞�锛孭BT妯�(sh霉)鑴傞渶姹傞€愬勾澧炲姞銆傛棩鏈拰鑷�(t谩i)鐏BT鐢熺敘(ch菐n)浼佹キ(y猫)鑷�2002骞翠互渚�(l谩i)澶у箙澧炲姞鐢�(ch菐n)鑳�锛岃繎涓夊勾灏�(du矛)鎴戝嚭鍙ｉ噺澧炲箙杓冨ぇ锛岀従(xi脿n)宸插崰涓湅(gu贸)澶ч櫢绺介€�(j矛n)鍙ｇ殑90%宸﹀彸锛屽皪(du矛)鍦�(gu贸)鍏�(n猫i)PBT鐢熺敘(ch菐n)浼佹キ(y猫)閫犳垚浜嗘矕鎿�銆傚彈?ch膿)?gu贸)闅�閲戣瀺鍗辨(j墨)銆佷汉姘戝梗鍗囧€肩瓑褰遍熆锛�2009骞�1-6鏈�锛屼腑鍦�(gu贸)鑱氬皪(du矛)鑻簩鐢查吀涓佷簩閰�锛圥BT锛夐€�(j矛n)鍙ｆ暩(sh霉)閲忕偤50368鍣革紝杓�2008骞村悓鏈熸笡灏�35.7%锛涢€�(j矛n)鍙ｉ噾椤�11781钀�(w脿n)缇庡厓锛岃純2008骞村悓鏈熸笡灏�40.4%銆� 銆€銆€闅ㄨ憲涓湅(gu贸)鍦�(gu贸)姘戠稉(j墨ng)婵�(j矛)鐨勮繀閫熺櫦(f膩)灞�锛岀壒鍒ユ槸涓嬫父闆诲瓙鐢�(ch菐n)妤�(y猫)鍜屾苯杌�(ch膿)鐢�(ch菐n)妤�(y猫)鐨勫揩閫熺櫦(f膩)灞�锛屾帹鍕�(d貌ng)浜哖BT甯傚牬(ch菐ng)闇€姹傜殑杩呯寷澧為暦(zh菐ng)銆傚湪鍦�(gu贸)瀹堕嚌灏�(du矛)閫�(j矛n)鍙ｇ敘(ch菐n)鍝侀€�(j矛n)琛屽弽鍌鹃姺(xi膩o)鐨勬儏娉佷笅锛岄毃钁楄垏閲戣瀺鍗辨(j墨)閫犳垚鐨勮暛姊濆眬闈㈠畬鍏ㄤ笉鍚岀殑杌�(ch膿)甯傜伀鐖嗙暟甯�锛屾斂搴滈紦鍕�(l矛)姹借粖(ch膿)娑堣不(f猫i)鐨勫悇闋�(xi脿ng)鍒╁ソ鏀跨瓥浠ュ強姹借粖(ch膿)涓嬮剦(xi膩ng)绛夋椿鍕�(d貌ng)鏇存槸璧峰埌浜嗘帹娉㈠姪鐎剧殑鏁堟灉銆傞毃钁楄繎骞存苯杌�(ch膿)琛屾キ(y猫)灏�(du矛)濉戞枡鐨勮繀鐚涢渶姹傦紝鎴戝湅(gu贸)濉戞枡鐢�(ch菐n)妤�(y猫)鍜屾苯杌�(ch膿)鐢�(ch菐n)妤�(y猫)宸插舰鎴愨€滀竴姒勘姒�銆佷竴鎼嶄勘鎼嶁€濅箣鍕�(sh矛)銆傚鏂欐キ(y猫)鍏�(n猫i)浜哄＋灏囩洰妯�(bi膩o)杞�(zhu菐n)鍚戜簡PBT濉戞枡鏀规€�锛屼娇鐢ㄦ洿杓�銆佹洿寮�(qi谩ng)銆佹洿濂界殑姹借粖(ch膿)閰嶄欢渚�(l谩i)绶╄В娌瑰児(ji脿)閬�(gu貌)楂樼殑灞€闈€€� 銆€銆€鏀规€BT濉戞枡鏄寚鍦ㄨ仛鍚堢墿(妯�(sh霉)鑴�)涓姞鍏ュ皬鍒嗗瓙鐒�(w煤)姗�(j墨)鐗╂垨鏈夋(j墨)鐗�锛岄€氶亷(gu貌)鐗╃悊鎴栧寲瀛�(xu茅)浣滅敤锛屽緸鑰岃肠浜堝叾鏌愮ó鎬ц兘(姗�(j墨)姊板姞宸ユ€ц兘)鎴栦娇鍏舵煇绋€ц兘鐛插緱鏀瑰杽銆傚澧為煂銆佸寮�(qi谩ng)銆佸濉�銆侀樆鐕冪瓑锛岃€岄€氶亷(gu貌)鏀规€ф妧琛�(sh霉)浣垮緱濉戞枡璁婂緱鍏锋湁楫壒寰�锛岃€岄€欏叾涓灞湪姹借粖(ch膿)鍜屽闆婚牁(l菒ng)鍩�锛屾敼鎬BT濉戞枡鐨勬噳(y墨ng)鐢ㄤ互鍙婄櫦(f膩)灞�?ji茅)鎽肯堥‖姒柈缃呮仌? 銆€銆€鏀规€BT濉戞枡鏄渶閲嶈鐨勬苯杌�(ch膿)杓曡唱(zh矛)鏉愭枡锛屽畠涓嶅儏鍙笡杓曢浂閮ㄤ欢绱�40%鐨勮唱(zh矛)閲忥紝鑰屼笖閭勫彲浠ヤ娇閲囪臣(g貌u)鎴愭湰闄嶄綆40%宸﹀彸锛屽洜姝よ繎骞翠締(l谩i)鍦ㄦ苯杌�(ch膿)涓殑鐢ㄩ噺杩呴€熶笂鍗�銆傜洰鍓嶆苯杌�(ch膿)鍏�(n猫i)椋句欢宸插熀鏈(sh铆)鐝�(xi脿n)濉戞枡鍖栵紝鈥滀互濉戜唬閶尖€濈殑姹借粖(ch膿)鐧�(f膩)灞曟鍦ㄥ付鍕�(d貌ng)钁楁敼鎬BT濉戞枡鍦ㄦ苯杌�(ch膿)鎳�(y墨ng)鐢ㄤ腑鍚戣憲鏇村唬闂婄殑闋�(l菒ng)鍩熶笉鏂烽枊(k膩i)鎷撳壍(chu脿ng)鏂�銆� 銆€銆€鍦ㄦ苯杌�(ch膿)鍒堕€犻牁(l菒ng)鍩燂紝PBT寤ｆ硾鍦扮敤浜庣敓鐢�(ch菐n)淇濋毆(xi菐n)鏉�銆佸寲娌瑰櫒绲勪欢銆佹搵娉ユ澘銆佹摼娴佹澘銆佺伀鑺卞绔瓙鏉�銆佷緵娌圭郴绲�(t菕ng)闆朵欢銆佸剙琛ㄧ洡(p谩n)銆佹苯杌�(ch膿)榛�(di菐n)鐏櫒銆佸姞閫熷櫒鍙婇洟鍚堝櫒韪忔澘绛夐儴浠�銆侾BT鑸囧寮�(qi谩ng)PA銆丳C銆丳OM鍦ㄦ苯杌�(ch膿)鍒堕€犳キ(y猫)涓殑绔�(j矛ng)鐖�(zh膿ng)鍗佸垎婵€鐑�锛孭A鏄撳惛姘�锛孭C鐨勮€愮啽鎬ц€愯棩鎬т笉鍙奝BT锛涘湪姹借粖(ch膿)鐢ㄩ€旀帴绠℃柟闈�锛岀敱浜嶱BT鐨勬姉鍚告按鎬�?x煤n)?y艒u)浜嶱A锛屽皣鏈�(hu矛)閫愭几鍙栦唬PA銆傚湪鐩稿皪(du矛)婵曞害杓冮珮銆佸崄鍒嗘疆婵曠殑鎯呮硜涓�锛岀敱浜庢疆婵曟槗寮曡捣濉戞€ч檷浣庯紝闆诲櫒绡€(ji茅)榛�(di菐n)铏曞鏄撳紩璧疯厫铦�锛屽父鍙娇鐢ㄦ敼鎬BT銆傚湪80鈩冦€�90%鐩稿皪(du矛)婵曞害涓�锛孭BT浠嶈兘姝ｅ父浣跨敤锛屽苟涓旀晥鏋滃緢濂�銆� 銆€銆€鍏朵腑PBT/PC鍚堥噾锛屽湪楂樼礆(j铆)杞庤粖(ch膿)涓噳(y墨ng)鐢ㄦ渶鐐哄唬娉�锛涘畠鐨勮€愮啽鎬уソ锛岃€愭噳(y墨ng)鍔涢枊(k膩i)瑁�锛屽叿鏈夊劒(y艒u)鑹殑鑰愮（锛岃€愬寲瀛�(xu茅)鑵愯潟鎬э紝浣庢韩娌栨搳寮�(qi谩ng)搴﹂珮锛屾槗鍔犲伐鍜屾秱椋炬€уソ锛屼富瑕佹噳(y墨ng)鐢ㄤ簬楂樻獢杞庤粖(ch膿)淇濋毆(xi菐n)鏉�锛岃粖(ch膿)搴曟澘锛岄潰鏉垮拰鎽╂墭杌�(ch膿)璀�(h霉)鏉跨瓑銆�

绶ㄨ集鏈閬�(y霉n)鐕�(y铆ng)鍟嗛骞茬恫(w菐ng)鍌宠几

銆€銆€閬�(y霉n)鐕�(y铆ng)鍟嗛骞茬恫(w菐ng)鍌宠几(Provider Backbone Transport锛孭BT)鎶€琛�(sh霉)鍩轰簬802.1ah妯�(bi膩o)婧�(zh菙n)锛屾槸鍦ㄩ亱(y霉n)鐕�(y铆ng)鍟嗛骞茬恫(w菐ng)姗�(Provider Backbone Bridge锛孭BB)妯�(bi膩o)婧�(zh菙n)涔嬩笂鏀归€�(j矛n)鑰屼締(l谩i)鐨勩€� 銆€銆€PBB鎶€琛�(sh霉)鐨勭洰妯�(bi膩o)鏄�锛屽厑瑷卞湪802.1ad妯�(bi膩o)婧�(zh菙n)瑕�(gu墨)瀹氫笅鐨勯亱(y霉n)鐕�(y铆ng)鍟嗛骞茬恫(w菐ng)姗嬬恫(w菐ng)绲�(lu貌)(PBBN)鏀寔鏈€澶�224鍊�(g猫)妤�(y猫)鍕�(w霉)VLAN銆侾BB閭勫畾缇╀簡PBBN鐨勬灦妲�(g貌u)鍜�姗嬫帴鍗�(xi茅)璀�锛屼互瀵�(sh铆)鐝�(xi脿n)澶氬€�(g猫)PBB缍�(w菐ng)绲�(lu貌)鐨勫吋瀹瑰拰浜掕伅(li谩n)浜掗€�銆傚湪姝ゆ浠朵笅锛�802.1ah妯�(bi膩o)婧�(zh菙n)瑕�(gu墨)瀹氫簡鍥涚ó椤�(l猫i)鍨嬮亱(y霉n)鐕�(y铆ng)鍟嗛骞茬恫(w菐ng)姗�锛屽嵆I妯�(bi膩o)绨姐€丅妯�(bi膩o)绨�銆両妯�(bi膩o)绨藉拰B妯�(bi膩o)绨戒互鍙婃櫘閫氶亱(y霉n)鐕�(y铆ng)鍟嗙恫(w菐ng)姗�(802.1ad)銆傚叾涓�锛孖妯�(bi膩o)绨界敤浜庢(bi膩o)绀轰笉鍚岀殑妤�(y猫)鍕�(w霉)VLAN锛孊妯�(bi膩o)绨界敤浜庢(bi膩o)绀洪骞茬恫(w菐ng)VLAN銆� 銆€銆€PBB閲囩敤MACinMAC灏佽锛屽嵆灏囩祩绔敤鎴�(h霉)浠ュお缍�(w菐ng)鏁�(sh霉)鎿�(j霉)骞€鍐嶅皝瑁濇垚閬�(y霉n)鐕�(y铆ng)鍟嗕互澶恫(w菐ng)骞€闋�锛屽舰鎴愬叐鍊�(g猫)MAC鍦板潃锛屽湪閬�(y霉n)鐕�(y铆ng)鍟嗘牳蹇冪恫(w菐ng)涓�锛屽彧鎸夌収鍚庝竴鍊�(g猫)灏佽鐨凪AC鍦板潃閫�(j矛n)琛屾祦閲忚綁(zhu菐n)鐧�(f膩)銆傞€欎竴鎬濈董甯朵締(l谩i)鐨勫ソ铏曞湪浜�锛屼娇寰椾互澶恫(w菐ng)鎿�(ku貌)灞曟€т互鍙婁綔鐐�缍�(w菐ng)绲�(lu貌)鍌宠几鎶€琛�(sh霉)鐨勮兘鍔涘緱鍒颁簡妤靛ぇ鎻愬崌銆傛彌瑷€涔嬶紝浠ュお缍�(w菐ng)閫氶亷(gu貌)MACinMAC鐨勬柟寮�锛屽(sh铆)鐝�(xi脿n)浜嗙恫(w菐ng)绲�(lu貌)灞ゆ鍖�锛屽(sh铆)鐝�(xi脿n)浜嗕笉鍚屽唬鎾煙鐨勯殧闆�锛屼娇浠ュお缍�(w菐ng)閬�(y霉n)鐕�(y铆ng)鎴愮偤鍙兘銆� 銆€銆€浣嗘槸锛孭BB瀛樺湪娴侀噺宸ョ▼鍟�(w猫n)椤�锛屼緥濡傚鏂瑰紡璺敱涓嬬殑娴侀噺鎺у埗銆佹帴鍏ユ帶鍒跺拰妤�(y猫)鍕�(w霉)鎺у埗锛�50ms鐢氳嚦20ms鍊掓彌鎴栨晠闅滄仮寰�(f霉)鑳藉姏锛屼互鍙婄鍒扮鐨凲oS淇濋殰绛�銆傚湪閫欎簺妤�(y猫)鍕�(w霉)闇€姹傜殑鎺ㄥ嫊(d貌ng)涓�锛孭BB鏀归€�(j矛n)鎴愮偤PBT銆� 銆€銆€PBT鐩稿皪(du矛)浜嶱BB鏈€澶х殑鐗瑰緛鍦ㄤ簬锛屽畠鍏佽ū灏�(du矛)娴侀噺宸ョ▼閫�(j矛n)琛岄厤缃�锛屼互鍙婇噰鐢ㄦ湁鏁堢殑榛�(di菐n)鍒伴粸(di菐n)鐨勬キ(y猫)鍕�(w霉)淇濊(h霉)绛栫暐锛屽彲浠ュ湪妯�(bi膩o)婧�(zh菙n)鐨凱BBN涓婄洿鎺ユ坊鍔犺矾鐢遍厤缃�锛屽湪闂�(gu膩n)闁�MAC鍦板潃瀛�(xu茅)缈�(x铆)鍔熻兘鏅�(sh铆)锛岃兘澶�?q奴)顩碫鎾姛鑳介€�(j矛n)琛岀鐞�锛屼篃鍙互閬垮厤MAC娉涙椽鏁堟噳(y墨ng)銆傚悓鏅�(sh铆)锛孭BT鍏锋湁MACinMAC鐗规€э紝涓嶅儏鍙互鏀寔鎺ュ叆浠ュお缍�(w菐ng)銆佸煄鍩熶互澶恫(w菐ng)鑼冨湇鍏�(n猫i)鐨勫悇绋キ(y猫)鍕�(w霉)锛岃€屼笖鍥�?y脿n)妯典繀鐣忓簨b锛屼篃鍙互鏀寔鍩轰簬MPLS鐨勫悇绋甐PN妤�(y猫)鍕�(w霉)銆� 銆€銆€寰炴垚鏈笂鐪�锛岀敱浜嶱BT鏄互鍋介亱(y霉n)鐕�(y铆ng)鍟嗕互澶恫(w菐ng)(MAC鍐嶆灏佽)褰㈠紡锛屼娇寰椾互澶恫(w菐ng)鏁�(sh霉)鎿�(j霉)骞€鑳藉蹇€熸湁鏁堝湴鍦ㄩ骞茬恫(w菐ng)涓婂偝杓�锛屽洜姝ゅ畠鏈夋晥鍦扮祼(ji茅)鍚堜簡浠ュお缍�(w菐ng)鍜孧PLS鐨勭壒寰侊紝瀹规槗浣块亱(y霉n)鐕�(y铆ng)鍟嗙瘈(ji茅)绱勬垚鏈�锛屼絾鏄彟涓€鏂归潰锛孭BT鍙兘鏀寔鐠�(hu谩n)褰㈢祫缍�(w菐ng)锛屽叾闈堟椿鎬х敋鑷充笉濡俁PR锛岃€屼笖灏氭矑(m茅i)鏈夌⒑瀹氱殑鍏钩绠楁硶姗�(j墨)鍒�锛屽洜姝ゅ皪(du矛)浜庣獊鐧�(f膩)鎬�銆佸ぇ瑕�(gu墨)妯℃キ(y猫)鍕�(w霉)鎳�(y墨ng)灏�(du矛)鑳藉姏杓冨急銆傜洰鍓�锛岃兘澶犺純濂藉湴鎻愪緵瑭查(l猫i)鏂规鐨勫叕鍙稿寘鎷彲鐐�銆佸寳闆荤瓑銆傚悗鑰呯殑PBT鏂规鐢氳嚦宸茬稉(j墨ng)琚嫳鍦�(gu贸)闆讳俊鐨�21CN缍�(w菐ng)绲�(lu貌)鎵€閲囩敤锛屼絾鏄緸闀�(zh菐ng)閬�(yu菐n)鐪�锛孭BT鏇撮仼鍚堟祦閲忕浉灏�(du矛)绌�(w臎n)瀹氱殑闆讳俊绱�(j铆)鍩庡煙缍�(w菐ng)鐨勫缓瑷�(sh猫)銆�