1. IRIBURIRO
Eva ni amagambo ahinnye ya Ethyle vinyl acetate copolymer, polyolefin polymer. Kubera ubushyuhe buke bwo gushonga, amazi meza, polarity hamwe nibintu bidashoboka, kandi ibiciro byinyamanswa nibikorwa byinshi, kandi igiciro cyamasoko nibikorwa byuzuzanya, birashobora gukoreshwa muburyo bwuzuye, Irashobora gukorwa mubintu byonyine, kandi birashobora gukorwa mubice byo guhuza ibintu.
Eva cyane ikoreshwa, hamwe na Flame Retdarttants, irashobora gukorwa mu nzitizi nkeya zo mu mwobo cyangwa hateri ya halogen; Hitamo VI ibikubiye VI bite nkibikoresho byingenzi nabyo birashobora gukorwa mubintu birwanya peteroli; Hitamo urutonde rwa voka ruke, ongeramo inshuro 2 kugeza kuri 3 Kwuzuza Ibicuruzwa bya Eva birashobora gukorwa kugirango birusheho kwiyongera nibiciro bya bariyeri yuzuye ya ogisijeni (yuzuza) ibikoresho.
Muriyi rupapuro, ukurikije imiterere ya Eva, intangiriro yo gusaba mu nganda n'iterambere ry'iterambere.
2. Imiterere y'imiterere
Mugihe utanga synthesis, guhindura igipimo cyimpamyabumenyi ya Polymerisation N / M irashobora kubyara ibikubiye VI kuva 5 kugeza 90% ya Eva; Kongera impamyabumenyi yose ya Polymerisation irashobora kubyara uburemere bwa molekile kuva ku bihumbi icumi kugeza ku bihumbi amagana. Ibirimo VI biri munsi 40%, bitewe no kuba hari kristu yo mu gice, elastique mbi, bikunze kwitwa Eva plastiki; Iyo VI ibirimo birenga 40%, reberi-nka elablemer idafite kristu idafite kristu, isanzwe izwi nka abm reberi.
1. Imiterere 2
Urunigi rwa molecular rwa Eva ni umurongo uzura imiterere, niko bifite ubushyuhe bwiza, ikirere na ozone kurwanya ozone.
Eva Molecule urunigi rwibanze ntirurimo ubumwe bubiri, benzene Impeta, Acyl, Amatsinda Adine nandi matsinda arongera kunywa itabi mugihe yaka, Phenyl, cyano nandi matsinda. Byongeye kandi, molekile ubwayo ntabwo ikubiyemo ibintu bya Halogen, birakwiriye rero ko byateje umwotsi-utagira umwotsi-kubuntu.
Ingano nini ya vinyl acetate (va) mumatsinda kuruhande rwa Eva hamwe na polarity yayo bivuze ko byombi bikabuza kubabara vinyl bangamiye hamwe nabashakanye neza, bitera ibisabwa kugirango babangamire. Ibi ni ukuri cyane kubera umwotsi muto kandi udahambiriye-kubuntu, nkumupaka wa Flame ufite amajwi arenga 50% [OH) 2, nibindi). Eva hamwe nuburyo bwo hejuru bwa VA bukoreshwa nkishingiro ryo kubyara umwotsi muto na halome umudahati-kubuntu
Nkuko EVA kuruhande rwa vinyl acetate (VA) ni Polar, ibirimo byinshi bya VA, niko polar polymer nibyiza kurwanya amavuta. Kurwanya amavuta bisabwa ninganda za Cable ahanini bivuga ubushobozi bwo guhangana namavuta ya minerral cyangwa intege nkeya. Dukurikije ihame ryo guhuza bisa, Eva hamwe nibirimo byinshi byakoreshejwe nkibikoresho byingenzi byo kubyara inzitizi nkeya na Halogen-Freeten-Free Lige-Kurwanya amavuta meza.
Eva Molekile mu mikorere ya Alpha-Olefin H irakora cyane, muri peroxide radical cyangwa imbaraga zingufu zoroshye zo gukora s crossique cyangwa reberi zisambanya ibisabwa.
Ongeraho itsinda rya vinyl acetate rituma ubushyuhe bwa sholt bwa eva yamanutse cyane, kandi umubare wiminyururu ya VI irashobora kwiyongera kwa Eva. Kubwibyo, imikorere yacyo yuzuye iruta imiterere ya polecular ya polthylene, ihinduka ibikoresho byingirakamaro kubikoresho byo gukingira igice ndetse na Halogen na Halogen-Feopers.
Ibicuruzwa 2
2. 1 Imikorere yo hejuru cyane
Eva ya Eva, imitungo yumubiri na robilicial, kurwanya ubushyuhe, kurwanya ikirere, kurwanya ozone, imitungo y'amashanyarazi ni nziza cyane. Hitamo amanota akwiye, arashobora kwiyongera ubushyuhe, imikorere yo gucika intege, ariko nanone amavuta yihariye ya kabili.
Ibikoresho byo muri thermoplastic bikoreshwa cyane hamwe na VI ibirimo bya 15% kugeza 46%, hamwe na fatizo rya metT ya 0. Amanota 5 kugeza kuri amanota 4. Eva ifite abakora benshi, ibirango byinshi, amahitamo menshi, ibiciro biciriritse, ibikorwa bihagije, imikorere, igiciro, ahantu hashobora kureba, urashobora guhitamo, byoroshye.
Eva ni polymer polymer, kuva muburyo bworoshye no gukoresha imikorere yimikorere, na polyethylene (pe) ibikoresho na polyviny ya chloride na polyvinyle ya chloride (PVC) byoroshye. Ariko uzongera gushaka ubushakashatsi, uzasanga Eva nibindi bintu bibiri byavuzwe haruguru byagereranijwe no hejuru yubutaka budasubirwaho.
2. 2 imikorere myiza yo gutunganya neza
Eva mubisobanuro bya kabili ni kuva mubikoresho byo hagati kandi binini bya voltage yikingiramubiri imbere no hanze yintangiriro, hanyuma hanyuma ugera kuri bariyeri-yubusa. Ubu bwoko bubiri bwibikoresho buturuka muburyo bwo gutunganya bufatwa nk '"ibikoresho byuzuye": Ibikoresho byuzuye kuberako bigomba kongeramo umubare munini wa karubone utwara neza kandi ugatanga ubutwari bwamanutse; Halogun-Flame Shome Redarring Lisant Activen akeneye kongeramo umubare munini wa Halome Regitants, virusi yubuntu yubusa yiyongereye cyane, ibisebe byagabanutse cyane. Igisubizo nugushaka polymer ishobora kwakira dosiye nini zuzuza, ariko kandi ifite vino nkeya hamwe namazi meza. Kubera iyo mpamvu, Eva nibyo guhitamo ukunda.
Eva gushonga vict hamwe nubushyuhe bwo gutunganya no gukandagira buzongera kugabanuka byihuse, uyikoresha agomba gusa guhindura ubushyuhe bwinshi kandi bwihuta, urashobora gukora imikorere myiza yinsinga nibicuruzwa. Umubare munini wibisabwa murugo kandi by'amahanga byerekana ko, kubikoresho byoroheje byibintu byatewe no gushonga cyane, bityo gusa ikoreshwa ryibipimo bike cyane, kugirango ukoreshe ibintu bitari munsi ya 1. 3) Kugirango ugabanye neza. Ibikoresho bya reberi bishingiye ku gitsina hamwe n'abakozi batewe na reberi birashobora gukomera kuri reberi kombi hamwe nimfashabukire rusange. Indwara yakurikiyeho (Cross-Guhuza) irashobora gukorerwa haba kuri thermochemical (peroxide) yambukiranya cyangwa na electron yihuta igradion conss-guhuza.
2. 3 Biroroshye Guhindura no Kumenyera
Insinga n'imigozi biri hose, kuva mu kirere hasi, kuva ku misozi kugera ku nyanja. Abakoresha insinga nibisabwa kandi biranga kandi bidasanzwe kandi bidasanzwe, mugihe imiterere yimigozi n'umugozi birasa, itandukaniro ry'imikorere rigaragarira ahanini mu bijyanye no gupfusha ibikoresho.
Kugeza ubu, haba murugo no mumahanga, PVC yoroshye PVC iracyafite konti nini y'ibikoresho bya polymer bikoreshwa munganda. Ariko, hamwe no kongera kumenya kurengera ibidukikije no guteza imbere irambye.
Ibikoresho bya PVC byarabujijwe cyane, abahanga bakora ibishoboka byose kugirango babone ibindi bikoresho kuri PVC, gusezerana cyane ni Eva.
Eva irashobora kuvanga hamwe na polymers zitandukanye, ariko kandi hamwe nibikoresho bitandukanye byamabuye y'agaciro hamwe no gutunganya sida bihuye, ibicuruzwa bivanze birashobora gukorwa muri plastike yo mu migozi ya plastike, ariko no muri reberi ihujwe na reberi ya rebeli. Ibishushanyo mbonera birashobora kuba bishingiye kubakoresha (cyangwa bisanzwe), Eva nkibikoresho byibanze, kugirango imikorere yibikoresho byubahirize ibisabwa.
3 EVA gusaba
3.
Nkuko twese tubizi, ibikoresho nyamukuru byibikoresho bigize karubone bitwara umukara, mubikoresho bya plastiki cyangwa reberi kugirango wongere ubuyabwe cyane ibikoresho bikingira hamwe nuburyo bworoshye. Kugirango wirinde ibisiba igice mumivugo minini, inkinzo yimbere ninyuma igomba kuba inanutse, irabagirana, yera kandi yera. Ugereranije nabandi polymers, Eva arashobora kubikora byoroshye. Impamvu yabyo nuko inzira ya Eva ari nziza cyane, itemba nziza, kandi ntabwo ikunda gushonga phenomenon. Ibikoresho bikingira bigabanyijemo ibyiciro bibiri: bipfunyitse muyobora hanze byitwa ingabo y'imbere - hamwe n'ibikoresho by'imbere; Gupfunyika mu bikwe hanze yiruka inyuma - hamwe nibikoresho byo hanze; Ibikoresho bya ecran yimbere ni ubunini bwibikoresho bya ecran yimbere ni byinshi kandi akenshi bishingiye kuri Eva hamwe na VI ibirimo bya 18% kuri 28% kuri 28%; Ibikoresho byo hanze birasakuza cyane hamwe kandi byemewe kandi akenshi bishingiye kuri Eva hamwe na VI ibirimo 40% kugeza 46%.
3. 2.
Ikidozo cya Thermoplastic Polyolefin gikoreshwa cyane munganda, cyane cyane ku bisabwa bya Halogen cyangwa Halogen-Halogen-Halogn. Inzozi za Marine Ubushyuhe bwabo bwo gukora kuva kuri 70 kugeza 90 ° C.
Ku miyoboro yuburyo bwa voltage ya 10 kv no hejuru, bifite imikorere myinshi yimikorere, urumuri rwa flame rwifuzwa cyane cyane nukaraba hanze. Mu bimwe bisaba inyubako cyangwa imishinga, insinga zirasabwa kugira umwotsi nke, halogen-ubusa, uburozi buke cyangwa umwotsi muto, bityo umwotsi wo hanze, bityo akaba n'umwotsi wo hanze wa polyolefins ni igisubizo kibi.
Ku migambi imwe yihariye, diameter yo hanze ntabwo ari nini, irwanya ubushyuhe muri 105 ~ 150 yo kwiyuhagira hakurya yimisaruro, ariko kandi biraboneka byo kwiyuhagira, ariko nanone biraboneka icyumba cyihuse, ariko nanone ibirangira icyumba cyihuse cyinkuta zambukiranya. Ubushyuhe bwakazi burambye bugabanyijemo 105 ℃, 125 ℃, 150 ℃ dosiye eshatu, igihingwa cyumusaruro gishobora gukorwa ukurikije ibisabwa bitandukanye byabakoresha cyangwa ibipimo, birimo inzitizi ya lisansi cyangwa iwabujijwe.
Birazwi neza ko polyolefins ari poly polar cyangwa idahwitse polar polymer. Nkuko bisa n'amavuta maremake muri polarike, polyolefics ahanini bifatwa nkaho barwanya amavuta bakurikije ihame ryo guhuza. Ariko, amahame menshi ya kabili murugo no mumahanga kandi ateganya ko ibw'ibitero bihuriyeho bigomba no kurwanya amavuta meza, bidahwitse ndetse no ku rutare, acide na alkalis. Iki nikibazo kubashakashatsi bafatika, ubu, haba mubushinwa cyangwa mumahanga, ibyo bikoresho bisaba, kandi ibikoresho byibanze ni Eva.
3. 3 Ibikoresho bya ogisijeni
Inkota nyinshi-nyamukuru zifite imyuga myinshi hagati yingingo zigomba kuzuzwa kugirango hakemuka inzitizi zizengurutse, niba ibyuzuye mumitsi yinyuma bikozwe mumavuta ya peteroli ya halogen-yubusa. Uku kuzuza ikibanza gikora nkinzitizi ya flame (ogisijeni) iyo inzitizi yaka kandi izwiho nka "bariyeri ya ogisije" mu nganda.
Ibisabwa byibanze kubikoresho bya ogisijeni ni: ibintu byiza byimiterere, byiza bya Halogune-Flame Redansant (indangagaciro ya ogisijeni isanzwe iri hejuru ya 40) nigiciro gito.
Iyi bariyeri ya ogisijeni yakoreshejwe cyane mu nganda zirenga icumi kandi igatera imbere mu ntambara yo muri Flame. Inzitizi ya ogisijeni irashobora gukoreshwa kubice byinshi bya Halome Umubare munini wimyitozo yerekanye ko insinga zifite inzitizi ya ogisijeni birashoboka cyane gutsinda ibizamini byo gutwika no guhindagurika.
Duhereye kubitekerezo byateganijwe, iyi miyoboro ya ogisijeni mubyukuri "ultra-aruzuzanya hejuru yuzuzanya, ni ngombwa ko yiyongera cyane (OH) inshuro nyinshi kandi agomba guhitamo Eva nkibikoresho shingiro.
3. 4 yahinduye pemething ibikoresho
Polyethyylene Ibikoresho bikunze gushingwa nibibazo bibiri: Ubwa mbere, bakunze gushonga (ni ukuvuga sharkkin) mugihe cyo kugenda; Icya kabiri, bakunze guhangayikishwa n'ibidukikije. Igisubizo cyoroshye nukukongeramo igipimo runaka cya Eva muri formulate. ikoreshwa nka Eva yahinduwe ahanini akoresha VI ibikubiye mucyiciro, urutonde rwacyo kugirango hagati ya 1 kugeza 2 rukwiye.
4. ITERAMBERE RY'ITERAMBERE
. By'umwihariko mu myaka icumi ishize, kubera akamaro ko kurengera ibidukikije, irwanya lisansi ishingiye ku butegetsi yiterambere ryihutirwa, kandi yasimbuye igice ibikoresho bya PVC. Imikorere yacyo nziza cyane hamwe nuburyo bwiza bwo gukora ibintu byiyongera biragoye gusimbuza ibindi bikoresho.
.) Kurugero, umubare munini wibikoresho bya Halogen-Ubusa, Guhitamo nyamukuru VA / MI = 28/2 ~ 3 bya Eva 265 #). Kandi iyi nkuru yo kwerekana Eva kugeza ubu ntabwo ari abakora murugo kugirango batange umusaruro no gutanga. Kutiba kuvuga ibikubiye hejuru ya 28, kandi ushonga urutonde rutarenze 3 muri bandi Eva resin no gutanga.
. Kurenga 50% bya VI ibikubiye muri reberi-rob-rob, ni isosiyete yamahanga yiganjemo, kandi igiciro kirasa na VI ibikubiye inshuro 2 kugeza kuri 3. Ibiciro biri hejuru, nabyo bigira ingaruka ku bwinshi bw'iki gitabo cya rubber, bityo inganda za kabili zihamagarira abakora imirimo yo mu rugo, kugira ngo kunoza abakora mu gihugu, kugira ngo kunonosora umusaruro wo mu gihugu. Imikorere myinshi yinganda yakoresheje byinshi bya Eva.
. Gukoresha Eva bikura ku gipimo cya 15% ku mwaka kandi imyumvire iratanga ikizere cyane. Umubare no gukura kw'ibikoresho bikingira hamwe no gucika intege cyane hamwe n'umuvuduko mwinshi wa voltage, hafi 8% kugeza 10% hagati; Kurwanya Polyolefin birakura vuba, mu myaka yashize byagumye kuri 15% kugeza kuri 20% hagati, ndetse no mu myaka 5 kugeza 10 kugeza ku myaka 5 kugeza 10, birashobora no gukomeza iyi nkunga.
Igihe cya nyuma: Jul-31-2022