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I-Surface Treatment Technology Ye-Aluminium Alloy

2021-08-14

I-Surface Treatment Technology Ye-Aluminium Alloy


I-Aluminium inezinzuzo eziningi ezifana nokuminyana okuphansi, amandla athile aphezulu, ukumelana nokugqwala okuhle, ukuguquguquka okuphezulu kukagesi nokushisayo, ukushisela, ipulasitiki enhle, ukucubungula nokubunjwa kalula, kanye nezakhiwo ezinhle kakhulu zokuhlobisa indawo. Ingxubevange ye-Aluminium yenziwe nge-aluminium emsulwa ngokwengeza izakhi ezithile zengxubevange. Ingxubevange ye-aluminium ingcono kune-aluminiyamu emsulwa.I-aluminiyamu inezakhiwo ezingcono zomzimba nezomshini. Ngenxa yemvelo esebenzayo ye-aluminium, ingazenzela ngokuzenzakalelayo ifilimu ye-amorphous oxide emoyeni, iyenze ibe nokugqwala okungcono kokugqwala emkhathini, kodwa ukushuba kwefilimu kucishe kube ngu-4nm kuphela, futhi ukwakheka kuxekethile, mncane futhi mncane. I-Porous, ubulukhuni obuphansi, ukumelana nokugqoka okuncane, namandla aphansi emishini, ngakho-ke kuyadingeka ukumboza mathupha indawo ye-aluminium ngefilimu ukuze ufeze injongo yokuvikela. Ngokuvamile kungafinyelelwa ngokwelashwa kwe-oxidation, i-electroplating, kanye ne-coating yangaphandle.


I-Surface Treatment Technology Ye-Aluminium Alloy
I-Surface Treatment Technology Ye-Aluminium Alloy

1 Ukwelashwa kwe-oxidation

Ukwelashwa kwe-oxidation ikakhulukazi i-anodic oxidation, i-chemical oxidation, ne-micro-arc oxidation. Xu Lingyun et al. [1] ufunde izici zemishini kanye nokumelana nokugqwala kwe-A356 aluminium alloy ngokwenza okuthathu okuhlukene. ukwelashwa surfaces: i-chemical oxidation, i-anodization kanye ne-micro-arc oxidation. Ngobuchwepheshe be-SEM, ukuhlolwa kokugqoka kanye nokuhlolwa kokumelana nokugqwala, i-morphology yendawo, ukushuba kongqimba lwe-oxide, ukumelana nokugqwala kwe-aluminium alloy ngemuva kokuthathu. ukwelashwa surfaces zahlaziywa futhi zaqhathaniswa ngokuningiliziwe. Imiphumela ibonisa ukuthi ngemva kokuhlukile ukwelashwa surfaces, i-aluminium alloy surface ingakha amafilimu e-oxide anobukhulu obuhlukahlukene, ubulukhuni bobuso kanye nokumelana nokugqoka kuthuthukiswa kakhulu, futhi ukumelana nokugqwala kwe-alloy nakho kuthuthukiswa ngamazinga ahlukahlukene. Mayelana nokusebenza okuphelele, i-micro-arc oxidation ingcono kune-anodic oxidation, futhi i-anodic oxidation ingcono kune-chemical oxidation.

1.1 I-Anodizing

I-anodizing ibizwa nangokuthi i-electrolytic oxidation, okuwukwelashwa kwe-electrochemical oxidation. Isebenzisa i-aluminium ne-aluminium alloys njengama-anode kuseli ye-electrolytic, futhi ifilimu ye-oxide (ikakhulukazi i-Al 2 O 3 layer) yakheka endaweni ye-aluminium ngemva kokukhanyisa amandla. Ifilimu ye-oxide etholwe nge-anodic oxidation inokumelana nokugqwala okuhle, inqubo ezinzile kanye nokunyuswa okulula. Kuyindlela eyisisekelo futhi evame kakhulu yokwelashwa kwendawo ye-aluminium ne-aluminium alloy ezweni lami lanamuhla. Ifilimu ye-anodic oxide inezici eziningi: i-barrier layer yefilimu ye-oxide inobulukhuni obukhulu, ukumelana okuhle kokugqoka, ukumelana nokugqwala okuhle, impahla yokufakelwa okuhle, ukuzinza kwamakhemikhali aphezulu, futhi ingasetshenziswa njengefilimu eyisisekelo yokugqoka; ifilimu ye-oxide inemigodi eminingi futhi ingasetshenziswa Isetshenziselwa ukudaya okuhlukahlukene kanye nombala ukuze kwandiswe ukusebenza kokuhlobisa kwendawo ye-aluminium; i-thermal conductivity yefilimu ye-oxide iphansi kakhulu, futhi iyisimboli esihle sokushisa kanye nesendlalelo sokuvikela esivikela ukushisa. Kodwa-ke, i-anodic oxidation yamanje ye-aluminium ne-aluminium alloys ngokuvamile isebenzisa i-chromate njenge-oxidant, edala ukungcoliswa okukhulu kwemvelo.

Ocwaningweni lwamanje mayelana ne-anodizing ye-aluminium ne-aluminium alloys, kuqashelwa futhi ekusebenziseni izici zama-ion ensimbi ukuze kuthuthukiswe izakhiwo ze-aluminium ne-aluminium alloys. Isibonelo, u-Tian Lianpeng [2] wasebenzisa ubuchwepheshe bokufakelwa kwe-ion ukujova i-titanium ebusweni be-aluminium alloy, wabe eseqhubeka wenza i-anodization ukuze athole ungqimba lwefilimu oluhlanganisiwe lwe-aluminium-titanium, olwenza ingaphezulu lefilimu ene-anodized yacaba futhi yafana. , futhi yathuthukisa i-anodization ye-aluminium alloy. Ukuminyana kwefilimu; Ukufakwa kwe-ion ye-titanium kungathuthukisa kakhulu ukumelana nokugqwala kwefilimu ye-aluminium alloy anodic oxide ku-asidi ne-alkaline ye-NaCl izixazululo, kodwa akuthinti isakhiwo se-amorphous sefilimu ye-aluminium alloy anodic oxide. Ukufakwa kwe-nickel ion kwenza isakhiwo esingaphezulu kanye ne-morphology yefilimu ye-aluminum anodic oxide iminyene futhi ifane. I-nickel ejovwe ikhona isesimweni se-metallic nickel ne-nickel oxide kufilimu ye-aluminium alloy anodic oxide.

1.2 I-Chemical oxidation

I-Chemical oxidation ibhekisela endleleni yokumboza lapho indawo ehlanzekile ye-aluminium ihlangana nomoya-mpilo kusixazululo se-oxidizing ngokusebenzisa isenzo samakhemikhali ngaphansi kwezimo ezithile zokushisa ukuze kwakhe ifilimu ye-oxide eminyene. Kunezindlela eziningi ze-chemical oxidation ze-aluminium ne-aluminium alloys, ngokusho kohlobo lwesixazululo.
Ingahlukaniswa ibe yi-alkaline ne-acidic. Ngokwemvelo yefilimu, ingahlukaniswa ifilimu ye-oxide, ifilimu ye-phosphate, ifilimu ye-chromate nefilimu ye-chromic acid-phosphate. Ifilimu ye-oxide etholwe nge-chemical oxidation yezingxenye ze-aluminium ne-aluminium alloy inogqinsi olungaba ngu-0.5~4μm. Inokumelana nokugqoka okungekuhle kanye nokumelana nokugqwala okuphansi kunefilimu ye-anodic oxide. Ayifanele ukusetshenziswa yodwa, kodwa inokumelana nokugqwala okuthile kanye nezakhiwo ezinhle zomzimba. Umthamo wokumuncwa uyisiqalo esihle sokudweba. Ukupenda ngemva kokuxutshwa kwamakhemikhali e-aluminium ne-aluminium alloy kungathuthukisa kakhulu amandla okubopha phakathi kwe-substrate ne-coating, futhi kuthuthukise ukumelana nokugqwala kwe-aluminium [3].

1.3 Indlela ye-Micro-arc oxidation

Ubuchwepheshe be-Micro-arc oxidation baziwa nangokuthi ubuchwepheshe be-micro-plasma oxidation noma ubuchwepheshe be-anode spark deposition, okuwuhlobo lokukhula kwe-in-situ ngokukhishwa kwe-micro-plasma ebusweni bensimbi nama-alloys ayo. I-oxidation
Ubuchwepheshe obusha be-ceramic membrane. Ifilimu engaphezulu eyakhiwe yilobu buchwepheshe inamandla okubopha okuqinile ne-substrate, ubulukhuni obuphezulu, ukumelana nokugqokwa, ukumelana nokugqwala, ukumelana nokushaqeka okuphezulu okushisayo, ukufakwa kahle kukagesi wefilimu, kanye nogesi wokuwohloka okuphezulu. Akukhona lokho kuphela, ubuchwepheshe buthatha indlela yokushisa ethuthukisiwe yokushisa kwe-arc ye-micro plasma ene-energy high density, isakhiwo se-matrix asithinteki, futhi inqubo ayiyinkimbinkimbi, futhi ayibangeli ukungcoliswa kwemvelo. Kuwubuchwepheshe obusha obuthembisayo bokwelapha okungaphezulu. Isiba yisizinda socwaningo emkhakheni wobuchwepheshe bonjiniyela bezinto zamazwe ngamazwe. UZhang Juguo et al. 

Used machining aluminium ingxubevange LY12 njengento yokuhlola, isetshenziswe i-MAO240/750 micro-arc oxidation gauge, TT260 geji yogqinsi kanye nesibonakhulu se-electron ye-AMARY-1000B ukuze kufundwe imiphumela ye-arc voltage, ukuminyana kwamanje kanye nesikhathi se-oxidation ongqimbeni lwe-ceramic. Umthelela wokusebenza. Ngochungechunge lwesivivinyo senqubo ye-aluminium alloy micro-arc oxidation nge-Na 2 SiO 3 electrolyte, umthetho wokukhula wefilimu ye-ceramic oxide ngesikhathi senqubo ye-micro-arc oxidation kanye nomthelela wokwakheka okuhlukile kwe-electrolyte nokugxila kukhwalithi ye-ceramic oxide. ifilimu ziyafundwa. I-micro-arc oxidation ye-aluminium alloy surface iyinqubo eyinkimbinkimbi kakhulu, ehlanganisa ukwakheka kwe-electrochemical kwefilimu yokuqala ye-oxide, kanye nokuwohloka okulandelayo kwefilimu ye-ceramic, ehlanganisa imiphumela ebonakalayo ye-thermochemistry, i-electrochemistry, ukukhanya, ugesi, nokushisa. . 

Inqubo ithintwa impahla ye-substrate ngokwayo, imingcele yokunikezwa kwamandla, nemingcele ye-electrolyte, futhi kunzima ukuqapha ku-inthanethi, okuletha ubunzima ocwaningweni lwethiyori. Ngakho-ke, kuze kube manje, akukabi bikho imodeli yetiyetha engachaza izenzakalo ezihlukahlukene zokuhlola ngendlela egculisayo, futhi ucwaningo lwendlela yayo lusadinga ukuhlola nokuthuthukiswa okwengeziwe.

2 I-Electroplating ne-chemical plating

I-Electroplating iwukuba idiphozi ungqimba lwenye insimbi enamathelayo ebusweni be-aluminium ne-aluminium alloy ngezindlela zamakhemikhali noma ze-electrochemical, ezingashintsha izici ezibonakalayo noma zamakhemikhali zendawo ye-aluminium alloy. phezulu

I-Conductivity; ithusi, i-nickel noma i-tin plating ingathuthukisa ukushisela kwe-aluminium alloy; kanye ne-hot-dip tin noma i-aluminium-tin alloy ingathuthukisa ukuthambisa kwe-aluminium alloy; ngokuvamile athuthukisa ubulukhuni bobuso kanye nokumelana nokugqoka kwe-aluminium alloy nge-chromium plating noma i-nickel plating; I-Chrome noma i-nickel plating nayo ingathuthukisa umhlobiso wayo. I-Aluminium ingafakwa ku-electrolyte ku-electrolyte ukuze yakhe i-coating, kodwa ukunamathela kulula ukuxebuka. Ukuze kuxazululwe le nkinga, i-aluminium ingafakwa futhi ihlanganiswe nesisombululo samanzi esiqukethe i-zinc compound. Isendlalelo sokucwilisa i-zinc esokuhlanganisa i-aluminium kanye ne-alloy matrix yayo kanye nezimbotshana ezilandelayo. Ibhuloho elibalulekile, uFeng Shaobin et al. [7] wafunda ukusetshenziswa kanye nendlela yongqimba lokucwiliswa kwe-zinc ku-aluminium substrate, futhi wethula ubuchwepheshe bamuva kanye nokusetshenziswa kwenqubo yokucwiliswa kwe-zinc. I-Electroplating ngemva kokucwiliswa ku-zinc nayo ingakha ifilimu elincane elinezimbotshana ebusweni be-aluminium bese kuba i-electroplating.

I-electroless plating ibhekisela kubuchwepheshe bokwenza ifilimu lapho ukunamathela kwensimbi kufakwa endaweni yensimbi ngokusabela kwamakhemikhali okuzenzakalelayo esixazululweni esihlala nosawoti wensimbi kanye ne-ejenti yokunciphisa. Phakathi kwazo, esetshenziswa kabanzi i-electroless Ni-P ingxubevange plating. Uma kuqhathaniswa nenqubo ye-electroplating, i-electroless plating iyi-a

Inqubo yokungcola ephansi kakhulu, ingxubevange ye-Ni-P etholiwe ithatha indawo enhle ye-chromium plating. Kodwa-ke, kunemishini eminingi yenqubo yokucwenga okungenawo ugesi, ukusetshenziswa kwezinto ezibonakalayo kukhulu, isikhathi sokusebenza side, izinqubo zokusebenza zinzima, futhi ikhwalithi yezingxenye zokucwenga kunzima ukuyiqinisekisa. Isibonelo, uFeng Liming et al. [8] ufunde inqubo yokucaciswa kwe-electroless nickel-phosphorus alloy plating ehlanganisa kuphela izinyathelo zokwelashwa kwangaphambili ezifana nokwehlisa amafutha, ukucwiliswa kwe-zinc, nokugeza amanzi okusekelwe ekwakhiweni kwe-6063 aluminium alloy. Imiphumela yokuhlola ibonisa ukuthi le nqubo ilula, ungqimba lwe-nickel olungenagesi lucwebezela kakhulu, amandla okubopha aqinile, umbala ozinzile, uqweqwe oluminyene, okuqukethwe kwe-phosphorus phakathi kuka-10% no-12%, futhi ubulukhuni besimo sokucwenga bungafinyelela ngaphezu kwe-500HV, ephakeme kakhulu kunaleyo ye-anode. Isendlalelo se-oxide [8]. Ngaphezu kwe-electroless Ni-P alloy plating, kukhona amanye ama-alloys, njenge-alloy ye-Ni-Co-P efundwe ngu-Yang Erbing [9]. Ifilimu inokuphoqelelwa okuphezulu, i-remanence encane kanye nokuguqulwa okuhle kakhulu kwe-electromagnetic. Izici, zingasetshenziswa kuma-disks aphakeme kakhulu nakweminye imikhakha, nge-electroless Plating

Indlela ye-Ni-Co-P ingathola ukushuba okufanayo kanye nefilimu ye-alloy magnetic kunoma iyiphi i-substrate yomumo oyinkimbinkimbi, futhi inezinzuzo zomnotho, ukusetshenziswa kwamandla okuphansi nokusebenza okulula.

3 Ukumboza ubuso

3.1 Ukufakwa kwe-laser

Eminyakeni yamuva nje, ukusetshenziswa kwama-laser we-high-energy beam ekwelapheni kwe-laser cladding ezindaweni ze-aluminium alloy kungathuthukisa ngempumelelo ubulukhuni nokumelana nokugqoka kwe-aluminium ne-aluminium alloy surfaces. Isibonelo, i-laser engu-5kW CO 2 isetshenziselwa ukumboza imbobo ye-plasma ye-Ni-WC ebusweni be-ZA111 alloy. Isendlalelo se-laser fusion esitholiwe sinobunzima obuphezulu, futhi ukugcotshwa kwaso, ukuguga kanye nokumelana nokuhuzuka kuphindwe izikhathi ezingu-1.75 kunesembozo esifuthwe ngaphandle kokwelashwa nge-laser kanye nezikhathi ezingu-2.83 ze-Al-Si alloy matrix. U-Zhao Yong [11] usebenzise amalaser e-CO 2 ku-aluminium ne-aluminium alloy substrates

Imbozwe nge-Y kanye ne-Y-Al powder coating, i-powder imbozwe ebusweni be-substrate ngendlela yokugcoba i-powder esethiwe, ukugeza kwe-laser kuvikelwe yi-argon, kanti inani elithile le-CaF 2, i-LiF ne-MgF 2 ingezwe njenge-ejenti eyenza i-slag Ngaphansi kwemingcele yenqubo ye-laser cladding ethile, i-uniform kanye ne-coating eqhubekayo eminyene ene-interface ye-metallurgical ingatholakala. U-Lu Weixin [12] usebenzise i-CO 2 laser ukuze alungise i-Al-Si powder coating, i-Al-Si+SiC powder coating kanye ne-Al-Si+Al 2 O 3 powder coating on aluminium alloy substrate by laser cladding method. , I-Al bronze powder coating. UZhang Song et al. [13] usebenzise i-laser engu-2 k W eqhubekayo ye-Nd:YAG ku-AA6 0 6 1 i-aluminium

Ingaphezulu lengxubevange i-laser cladding ne-SiC ceramic powder, futhi ungqimba olungaphezulu lwe-metal matrix composite (MMC) oluguquliwe lungalungiswa phezu kwengxube ye-aluminium ngokwelashwa kokuncibilika kwe-laser.

3.2 Ukumboza okuyinhlanganisela

I-self-lubricating aluminium alloy composite coating enezindawo ezinhle kakhulu zokulwa nokungqubuzana kanye nezakhiwo ezivimbela ukugqoka inamathemba amahle kakhulu okusebenza kwezobunjiniyela, ikakhulukazi emkhakheni wobuchwepheshe obuphambili. Ngakho-ke, ulwelwesi lwe-alumina olunezimbotshana olune-pore matrix luphinde lwathola ukunakwa okwengeziwe okuvela kubantu. Ukunaka, ubuchwepheshe bokuhlanganisa ingxube ye-aluminium ingxubevange sebungenye yezindawo zamanje zocwaningo. U-Qu Zhijian [14] ufunde i-aluminium kanye ne-6063 aluminium alloy composite self-lubricating coating coating. Inqubo eyinhloko ukwenza i-anodization eqinile ku-aluminium ne-6063 aluminium alloy, bese usebenzisa indlela yokucwilisa eshisayo ukwethula izinhlayiya ze-PTFE kuzimbotshana zefilimu ye-oxide. Futhi indawo engaphezulu, ngemuva kokwelashwa kokushisa kwe-vacuum ngokunemba, kwakhiwa i-coating eyinhlanganisela. U-Li Zhenfang [15] ucwaninge ngenqubo entsha ehlanganisa upende kapende we-resin kanye nenqubo ye-electroplating ebusweni bamasondo e-aluminium alloy asetshenziswa ezimotweni. Isikhathi sokuhlolwa kwe-CASS singamahora angu-66, izinga lokuqhuma ngu-≤3%, izinga lokuvuza kwethusi ngu-≤3%, ibhalansi eguquguqukayo iyancipha ngo-10 ~ 20g, futhi upende we-resin nokumbozwa kwensimbi kunokubukeka okuhle.

4 Ezinye izindlela

4.1 Indlela yokufakelwa i-ion

Indlela yokufakelwa kwe-ion isebenzisa imishayo ye-ion enamandla amakhulu ukuze iqhume okuhlosiwe esimweni se-vacuum. Cishe noma yikuphi ukufakwa kwe-ion kungafinyelelwa. Ama-ion afakiwe ayancipha futhi ashiywe endaweni yokushintsha noma indawo yegebe yesisombululo esiqinile ukuze kwakhe ungqimba olungaphezulu olungalingani. Ingxube ye-aluminium

Ukuqina kobuso, ukumelana nokugqoka kanye nokumelana nokugqwala kuyathuthukiswa. I-Magnetron sputtering i-titanium ehlanzekile elandelwa yi-PB11 nitrogen/carbon implantation ingathuthukisa kakhulu ubulukhuni obuncane bendawo eguquliwe. Ukufafaza kwe-Magnetron kuhlanganiswe nomjovo we-nitrogen kungandisa ubulukhuni be-substrate ukusuka ku-180HV ukuya ku-281.4HV. I-Magnetron sputtering ehlanganiswe nomjovo we-carbon ingakhuphuka ibe yi-342HV [16]. I-Magnetron sputtering i-titanium ehlanzekile elandelwa yi-PB11 nitrogen/carbon implantation ingathuthukisa kakhulu ubulukhuni obuncane bendawo eguquliwe. U-Liao Jiaxuan et al. [17] wenza ukufakwa okuyinhlanganisela kwe-titanium, i-nitrogen, nekhabhoni ngesisekelo sokufakwa kwe-ion okusekelwe ku-plasma ye-LY12 aluminium alloy, futhi kwazuza imiphumela ebalulekile yokuguqulwa. U-Zhang Shengtao kanye no-Huang Zongqing base-Chongqing University [18] bafake i-titanium ion ku-alloy ye-aluminium. Imiphumela yabonisa ukuthi i-titanium ion implantation ebusweni be-aluminium alloy iyindlela ephumelelayo yokuthuthukisa ukumelana kwayo ne-chloride ion corrosion, futhi ingathuthukisa ikhono le-aluminium alloy ukumelana ne-chloride ion corrosion. Nweba ububanzi obunamandla bokudlula be-aluminium alloy ku-NaCl nezinye izixazululo, futhi unciphise ukuminyana nobukhulu bezimbotshana zokugqwala ezigqwaliswe ama-ion e-chloride.

4.2 Ukuguquguquka komhlaba okungavamile

Ingubo yokuguqula indawo engavamile yomhlaba ingathuthukisa ukumelana nokugqwala kwama-alloys e-aluminium, futhi inqubo ngokuyinhloko iwukucwiliswa kwamakhemikhali. Umhlaba ongavamile uzuzisa ku-aluminum alloy anodic oxidation. Ithuthukisa ikhono le-aluminium alloy ukwamukela i-polarization futhi ngesikhathi esifanayo ithuthukisa ukumelana nokugqwala kwefilimu ye-oxide. Ngakho-ke, kusetshenziswa umhlaba ongavamile

Ukwelashwa kwe-aluminium alloy surface kunamathemba amahle okuthuthukiswa [19]. Shi Tie et al. [20] ufunde inqubo yokwenza ifilimu yokuguqula usawoti we-cerium ebusweni be-aluminium-proof LF21 ngokufakwa kwe-electrolytic. Ukuhlolwa kwe-orthogonal kwasetshenziselwa ukutadisha umthelela wezinto ezihlobene nenqubo yokwakhiwa kwefilimu kanye nemingcele yezobuchwepheshe engcono kakhulu yatholwa. Imiphumela ibonisa ukuthi inqubo ye-anodic corrosion ye-rust-proof aluminium ivinjiwe ngemva kokwelashwa kwe-electrolytic deposition yefilimu yokuguqula umhlaba engavamile, ukumelana nokugqwala kwayo kuthuthukiswa kakhulu, futhi i-hydrophilicity nayo ithuthukisiwe kakhulu. UZhu Liping et al. [21] isebenzise i-electron microscopy (SEM) yokuskena, i-spectroscopy yamandla (EMS) kanye nezindlela zokuhlola isifutho sikasawoti ukuze itadishe ngokuhlelekile ukwakheka, ukwakheka nokubumbana kwengxube ye-aluminiyamu engavamile yokuguqulwa kukasawoti womhlaba i-cerium ukumelana nokugqwala. Ithonya. Imiphumela yocwaningo ibonisa ukuthi ingxenye ye-cerium yomhlaba engavamile efilimini ivimbela ngempumelelo ukuziphatha kokugqwala kwe-aluminium alloy futhi ithuthukisa kakhulu ukumelana kwayo nokugqwala.

Ukumelana nokugqwala kudlala indima ebalulekile. Namuhla, kunezindlela ezihlukahlukene zokwelapha ezingaphezulu kwe-aluminium ne-aluminium alloys, futhi ukusebenza kwazo kuya ngokuya kuba namandla, okungahlangabezana nezidingo ze-aluminium ne-aluminium alloys empilweni, ukwelashwa, ubunjiniyela, i-aerospace, i-instrumentation, izinto zikagesi, ukudla kanye imboni yokukhanya, njll. Dinga. Ngokuzayo, ukwelashwa okungaphezulu kwe-aluminium ne-aluminium alloys kuzoba lula ekugelezeni kwenqubo, kuzinzile ngekhwalithi, ngezinga elikhulu, ukonga amandla, kanye nemvelo.

Ukuthuthukiswa kokuqondisa. I-block copolymer ye-ester-amide exchange reaction enezinga eliphezulu lokuguqulwa. Korshak et al. [I-11] ibike ukuthi uma i-1% PbO 2 noma i-2% i-PbO 2 isetshenziswa njenge-catalyst futhi ishisa ngama-degree angu-260 amahora angu-3-8, ukusabela phakathi kwe-polyester ne-polyamide kuzokwenzeka. Ukusabela kokushintshisana kwe-ester-amide kunethonya elithile ekusebenzisaneni kwesistimu yokuhlanganisa. U-Xie Xiaolin, uLi Ruixia, njll. [12] usebenzisa isisombululo

Indlela, ukuxuba okulula kwemishini (indlela yokuncibilika 1) kanye nokuba khona kwe-ester-amide exchange reaction blending method (indlela yokuncibilika) ukuze kuhlanganiswe i-PET ne-PA66, ukuhlaziya okuhlelekile kwe-DSC, nokuhambisana kwe-PET/PA66 uhlelo lokuhlanganisa Ubulili kwaxoxwa ngezinga elithile. Imiphumela ibonisa ukuthi i-PET/PA66 blend system iyisistimu engahambisani ne-thermodynamically, futhi ukuhambisana kwengxube yokuncibilika kungcono kunokuhlanganiswa kwesixazululo, futhi i-block copolymer ekhiqizwa yi-PET/PA66 blend ihambisana nokubili Ukuhambisana kwesigaba. ithuthukisiwe; ngokunyuka kokuqukethwe kwe-PA66, indawo yokuncibilika yenhlanganisela yehlile. I-PET/PA66 block copolymer eyakhiwe ukusabela ikhulisa umphumela we-nucleation we-PA66 ku-PET isigaba se-crystallization, okuholela ekuncibilikeni I-crystallinity yenhlanganisela yesiFulentshi iphakeme kunaleyo ye-melt method 1 blend. UZhu Hong et al. [13] isebenzise i-p-toluenesulfonic acid (TsOH) kanye nama-titanate coupling agents njengama-catalysts e-ester-amide exchange reaction phakathi kweNylon-6 ne-PET ukuze kuzuzwe ukusebenzisana kwe-in-situ kwezingxube zeNylon-6/PET. Inhloso yemiphumela yokubona i-electron microscope yokuskena ibonisa ukuthi inhlanganisela yeNyiloni-6/PET iyisistimu yokuhlukanisa isigaba sekristalline ehambisana kabi. Ukwengeza i-p-toluenesulfonic acid kanye ne-titanate coupling ejenti njenge-catalyst yokukhuthaza ukwakheka kwe-in-situ block I-copolymer ikhulisa ukuxhumana phakathi kwezigaba ezimbili, yenza isigaba esihlakazekile sicwengisiswe futhi sisatshalaliswe ngokufanayo, futhi isiza ukwandisa umsebenzi wokusabalalisa ukuqhekeka kwenhlanganisela. . Kokubili kusiza ukuthuthukisa ukuhambisana kwenhlanganisela nokwandisa ukunamathela kobuso bezigaba ezimbili.

Umbono we-2

Eminyakeni yamuva, abacwaningi basekhaya benze umsebenzi omningi wocwaningo ngezingxube ze-polyamide/polyester futhi bathole iziphetho eziningi eziwusizo, babeka isisekelo esihle socwaningo lwesikhathi esizayo kule ndawo. Njengamanje, okufanele kuqashelwe ukukhuthaza ukuthuthukiswa okuqhubekayo kwezinto zokuhlanganisa i-polyamide/polyester nokusebenzisa iziphetho zangaphambilini ekusebenzeni kwangempela kokukhiqiza. Ngokulungisa lezi zinto ezimbili, kutholakala into entsha egcina izinzuzo zezingxenye ezimbili. Inezici ezinhle kakhulu zokusebenza, ukumelana namanzi kungcono kune-polyamide, futhi ukuqina komthelela kungcono kune-polyester. Isetshenziswa kabanzi ezimbonini zikagesi, zikagesi nezezimoto. isicelo.

Xhumanisa nale ndatshana: I-Surface Treatment Technology Ye-Aluminium Alloy

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