Iarhente yokwenza amagwebu yePolyurethane
I-arhente ye-polyurethane foam yimveliso yokudibanisa ubuchwepheshe be-aerosol kunye neteknoloji ye-polyurethane foam. Kukho iintlobo ezimbini zesimo se-spongy kuhlobo lwetyhubhu kunye nohlobo lwesibhamu. I-Styrofoam isetyenziswa njenge-arhente ye-foam ekuveliseni ama-microcellular foams. Ngokubanzi inokwahlulwa ibe ziintlobo ezimbini: uhlobo lomzimba kunye nohlobo lwekhemikhali. Oku kusekelwe ekubeni imveliso yegesi yinkqubo yokwenyani (i-Volatilization okanye i-sublimation) okanye inkqubo yekhemikhali (Ukutshatyalaliswa kwesakhiwo sekhemikhali okanye ezinye iimpendulo zekhemikhali)
Igama lesiNgesi
I-PU Foam
Ubuchwepheshe
Itekhnoloji ye-aerosol kunye netekhnoloji ye-polyurethane foam
Iintlobo
Uhlobo lwetyhubhu kunye nohlobo lwesibhamu
Intshayelelo
Igama elipheleleyo le-polyurethane foam agent liyi-single component polyurethane foam sealant. Amanye amagama: i-foam agent, i-styrofoam, i-PU sealant. IsiNgesi i-PU FOAM yimveliso yokudibanisa ubuchwepheshe be-aerosol kunye ne-polyurethane foam technology. Yimveliso ekhethekileyo ye-polyurethane apho izinto ezifana ne-polyurethane prepolymer, i-blowing agent, kunye ne-catalyst zizaliswa kwi-aerosol can enganyangekiyo. Xa izinto zitshizwa kwi-aerosol tank, izinto ze-polyurethane ezifana ne-foam ziya kwanda ngokukhawuleza kwaye ziya kuqina kwaye ziphendule nomoya okanye ukufuma kwi-substrate ukuze zenze i-foam. Uluhlu olubanzi lwezicelo. Inezibonelelo ze-foam yangaphambili, ukwanda okuphezulu, ukuncitshiswa okuncinci, njl. Kwaye i-foam inamandla amahle kunye nokunamathela okuphezulu. I-foam ephilisweyo ineziphumo ezahlukeneyo ezifana ne-caulking, i-bonding, i-sealing, i-heat insulation, i-sound absorption, njl. Yinto yokwakha enobuhlobo nokusingqongileyo, egcina amandla kwaye kulula ukuyisebenzisa. Ingasetyenziselwa ukuvala nokufaka iiplagi, ukuvala izikhewu, ukulungisa nokubopha, ukugcina ubushushu kunye nokukhusela isandi, kwaye ifanelekile ngokukodwa ukuvala nokukhusela amanzi phakathi kweengcango zentsimbi yeplastiki okanye i-aluminium alloy kunye neefestile kunye neendonga.
Inkcazo yokusebenza
Ngokubanzi, ixesha lokomisa umphezulu limalunga nemizuzu eli-10 (phantsi kobushushu begumbi ngama-20°C). Ixesha lokomisa lilonke liyahluka ngokobushushu obuphakathi kunye nokufuma. Phantsi kweemeko eziqhelekileyo, ixesha lokomisa lilonke ehlotyeni limalunga neeyure ezi-4-6, kwaye kuthatha iiyure ezingama-24 nangaphezulu ukomisa malunga ne-zero ebusika. Phantsi kweemeko eziqhelekileyo zokusetyenziswa (kunye nomaleko wokugquma phezu komphezulu), kuqikelelwa ukuba ubomi bayo benkonzo abuyi kuba ngaphantsi kweminyaka elishumi. I-foam ephilisweyo igcina ukuthamba okuhle kunye nokunamathela kumanqanaba obushushu angama--10℃ ~ 80℃. I-foam ephilisweyo inemisebenzi yokuvala, ukubopha, ukutywina, njl. Ukongeza, i-arhente ye-polyurethane foam ethintela ilangatye inokufikelela kwi-B kunye ne-C grade flame retardant.
Ububi
1. I-arhente yokuvala i-polyurethane foam, ubushushu buphezulu, iya kuhamba kakuhle, kwaye uzinzo alukho semgangathweni. Ayizinzanga njenge-polyurethane rigid foam.
2. I-polyurethane foam sealant, isantya sokuphuma kwegwebu sicotha kakhulu, ulwakhiwo lwendawo enkulu alunakwenziwa, ukuba tyaba akunakulawulwa, kwaye umgangatho wegwebu uphantsi kakhulu.
3. I-polyurethane foam sealant, ebiza kakhulu
Isicelo
1. Ukufakelwa kocango neefestile: Ukuvala, ukulungisa nokubopha phakathi kweengcango neefestile neendonga.
2. Imodeli yentengiso: Imodeli, imveliso yetafile yesanti, ukulungiswa kwebhodi yomboniso
3. Ukuthintela isandi: Ukuvala izikhewu ekuhombisweni kwamagumbi okuthetha kunye namagumbi okusasaza, anokudlala indima yokuthintela isandi kunye nefuthe lokuthulisa.
4. Ukulima: Ukulungiswa kweentyatyambo, ukulima kunye nokulungisa igadi, ukukhanya kunye nobuhle
5. Ulondolozo lwemihla ngemihla: Ukulungiswa kwemingxuma, izikhewu, iithayile zodonga, iithayile zomgangatho, kunye neemigangatho
6. Ukufaka iplagi engangeni manzi: Lungisa kwaye uvale ukuvuza kwimibhobho yamanzi, imijelo yamanzi amdaka, njl.njl.
7. Ukupakisha nokuthumela: Ingasonga ngokulula izinto ezixabisekileyo nezibuthathaka, igcina ixesha kunye nesantya, ikhusela ukushaqeka kwaye ixhathisa uxinzelelo
Imiyalelo
1. Ngaphambi kokwakha, kufuneka kususwe amabala eoyile kunye nothuli oludadayo kumphezulu wokwakha, kwaye kufuneka kutshizwe amanzi amancinci kumphezulu wokwakha.
2. Ngaphambi kokuba uyisebenzise, shukumisa itanki ye-polyurethane foaming agent ubuncinane imizuzwana engama-60 ukuqinisekisa ukuba umxholo wetanki uyafana.
3. Ukuba kusetyenziswa i-arhente ye-polyurethane foaming efana nompu, jika itanki ijonge ezantsi ukuze idibane nomsonto we-spray gun, vula i-flow valve, kwaye ulungise ukuhamba kwayo ngaphambi kokutshiza. Ukuba kusetyenziswa i-arhente ye-polyurethane foaming efana nompu, jija umlomo weplastiki kumsonto we-valve, ulungelelanise umbhobho weplastiki nomsantsa, uze ucinezele umlomo ukuze utshize.
4. Nika ingqalelo kwisantya sokuhamba xa utshiza, ngesiqhelo umthamo wenaliti unokuba sisiqingatha somthamo wokugcwalisa ofunekayo. Zalisa izikhewu ezithe nkqo ukusuka ezantsi ukuya phezulu.
5. Xa kuzaliswa izikhewu ezifana neesilingi, igwebu elingavuthwanga lisenokuwa ngenxa yobunzima bomxhuzulane. Kucetyiswa ukuba unike inkxaso efanelekileyo emva kokuzaliswa, uze urhoxise inkxaso emva kokuba igwebu livuthwe kwaye libotshelelwe eludongeni lomngxuma.
6. Igwebu liza kususwa kwiibhondi kwimizuzu eli-10, kwaye linganqunyulwa emva kwemizuzu engama-60.
7. Sebenzisa imela ukusika igwebu elingaphezulu, uze ugqume umphezulu ngesamente, ipeyinti okanye ijeli yesilika.
8. Linganisa i-agent ekhupha amagwebu ngokweemfuno zobugcisa, yongeza amanzi acacileyo amaxesha angama-80 ukuze udibanise ukwenza ulwelo olukhupha amagwebu; uze usebenzise umatshini okhupha amagwebu ukuze ukhuphe ulwelo olukhupha amagwebu, uze wongeze igwebu kwi-slurry yesamente ye-magnesite exutywe ngokulinganayo ngokwesixa esimiselweyo. Xuba ngokulinganayo, uze ekugqibeleni uthumele i-slurry ye-magnesite ekhupha amagwebu kumatshini okhupha amagwebu okanye kwi-mold ukuze kwenziwe.
Amanqaku okwakha:
Ubushushu obuqhelekileyo bokusetyenziswa kwetanki ye-polyurethane foaming agent yi +5～+40℃, Ubushushu obungcono bokusetyenziswa yi +18～+25℃. Kwimeko yobushushu obuphantsi, kucetyiswa ukuba le mveliso uyibeke kubushushu obungaguqukiyo be +25～+30℃ imizuzu engama-30 ngaphambi kokuba uyisebenzise ukuqinisekisa ukusebenza kwayo okungcono. Uluhlu lokumelana nobushushu be-foam evuselelweyo yi -35℃～+80℃.
I-polyurethane foam agent yi-foam ephilisa umswakama. Ifanele itshizwe kumphezulu omanzi xa isetyenziswa. Okukhona umswakama uphezulu, kokukhona inyibilika ngokukhawuleza. I-foam engacocwanga ingacocwa nge-arhente yokucoca, ngelixa i-foam ecociweyo kufuneka isuswe ngeendlela zoomatshini (ukuyigquma okanye ukuyisika). I-foam ecociweyo iya kuba tyheli emva kokuba ikhanyiswe kukukhanya kwe-ultraviolet. Kucetyiswa ukuba ugqume umphezulu we-foam ecociweyo ngezinye izinto (isamente yesamente, ipeyinti, njl.njl.). Emva kokusebenzisa i-spray gun, nceda uyicoce nge-arhente ekhethekileyo yokucoca ngoko nangoko.
Xa utshintsha itanki, shukumisa itanki entsha kakuhle (uyishukumisa ubuncinane izihlandlo ezingama-20), susa itanki engenanto, kwaye uyitshintshe ngokukhawuleza itanki entsha ukuze uthintele ukuba isango loqhagamshelo lwe-spray gun lingaqini.
Ivalvu yokulawula ukuhamba kwamanzi kunye ne-trigger ye-spray gun inokulawula ubungakanani bokuhamba kwamanzi e-foam. Xa inaliti iyeka, yivale ngoko nangoko ivalvu yokuhamba kwamanzi kwicala elijika ngewotshi.
Amanyathelo okhuseleko
Igwebu elinganyangwanga linamathela eluswini nakwimpahla. Musa ukuchukumisa ulusu lwakho nakwimpahla ngexesha lokusetyenziswa. Itanki ye-polyurethane foam agent inoxinzelelo lwe-5-6kg/cm2 (25℃), kwaye ubushushu akufuneki budlule kwi-50℃ ngexesha lokugcina nokuthuthwa ukuze kuthintelwe ukuqhuma kwetanki.
Iitanki ze-polyurethane foam kufuneka zikhuselwe elangeni ngqo kwaye abantwana abavumelekanga ngokungqongqo. Ukukhupha iitanki emva kokusetyenziswa, ingakumbi iitanki ze-polyurethane foam ezisetyenzisiweyo kancinci ezingasetyenziswanga ngokupheleleyo, akufuneki zichitheke. Akuvumelekanga ukutshisa okanye ukugqobhoza iitanki ezingenanto.
Gcina kude namalangatye avulekileyo kwaye ungachukumisi izinto ezivuthayo neziqhumayo.
Indawo yokwakha kufuneka ifumane umoya owaneleyo, kwaye abasebenzi bokwakha bafanele banxibe iiglavu zokusebenza, ii-ovaroli kunye neeglasi zeglasi ngexesha lokwakha, kwaye bangatshayi.
Ukuba igwebu lichukumisa amehlo, nceda uhlambe ngamanzi ngaphambi kokuba uye esibhedlele ukuze ufumane unyango; ukuba lichukumisa ulusu, hlambulula ngamanzi nesepha.
Inkqubo yokwenza amagwebu
1. Indlela ye-Prepolymer
Inkqubo yokwenza igwebu ngendlela ye-pre-polymer kukwenza (izinto ezimhlophe) kunye (nezinto ezimnyama) zibe yi-pre-polymer kuqala, uze wongeze amanzi, i-catalyst, i-surfactant, nezinye izongezo kwi-pre-polymer, uze udibanise phantsi kokuxuba ngesantya esiphezulu. Nciphisa, emva kokuyicola, inokuphiliswa kubushushu obuthile.
2. Indlela ye-semi-prepolymer
Inkqubo yokwenza i-foam yendlela ye-semi-prepolymer kukwenza inxalenye ye-polyether polyol (izinto ezimhlophe) kunye ne-diisocyanate (izinto ezimnyama) zibe yi-prepolymer, uze emva koko udibanise enye inxalenye ye-polyether okanye i-polyester polyol kunye ne-diisocyanate, amanzi, iiCatalysts, ii-surfactants, ezinye izongezo, njl.njl. zongezwa kwaye zixutywe phantsi kokuxuba ngesantya esiphezulu ukuze kwenziwe i-foam.
3. Inkqubo yokufutha igwebu enenyathelo elinye
Yongeza i-polyether okanye i-polyester polyol (izinto ezimhlophe) kunye ne-polyisocyanate (izinto ezimnyama), amanzi, i-catalyst, i-surfactant, i-blowing agent, ezinye izongezo kunye nezinye izinto ezikrwada kwinqanaba elinye, uze udibanise phantsi kokuxuba ngesantya esiphezulu uze wenze i-foam.
Inkqubo yokufutha i-foam enenyathelo elinye yinkqubo esetyenziswa rhoqo. Kukwakho nendlela yokufutha i-foam ngesandla, eyona ndlela ilula. Emva kokuba zonke izinto ezikrwada zilinganiswe ngokuchanekileyo, zifakwa kwisikhongozeli, emva koko ezi zinto zikrwada zixutywe ngokulinganayo kwaye zifakwe kwi-mold okanye kwindawo ekufuneka izaliswe yi-foam. Qaphela: Xa kulinganiswe, i-polyisocyanate (izinto ezimnyama) kufuneka ilinganiswe ekugqibeleni.
Ifoam ye-polyurethane eqinileyo idla ngokufuthwa ngefoam kubushushu begumbi, kwaye inkqubo yokubumba ilula kakhulu. Ngokwezinga loomatshini bokwakha, inokwahlulwahlulwa ibe yifoam eyenziwe ngesandla kunye nefoam yoomatshini. Ngokwexinzelelo ngexesha lokufuthwa, inokwahlulwahlulwa ibe yifoam enoxinzelelo oluphezulu kunye nefoam enoxinzelelo oluphantsi. Ngokwendlela yokubumba, inokwahlulwahlulwa ibe yifoam egalelwayo kunye nefoam egalelwayo.
Umgaqo-nkqubo
Iarhente ye-polyurethane foam idweliswe liSebe lezoKwakha njengemveliso eza kukhuthazwa kwaye isetyenziswe ngexesha le-"Eleventh Five-Year Plan".
Ulindelo lwemarike
Ukususela oko kwakhuthazwa kwaye kwasetyenziswa iimveliso ezingama-2000 eTshayina, imfuno yemarike ikhule ngokukhawuleza. Ngowama-2009, ukusetyenziswa konyaka kwemarike yokwakha yesizwe kudlule kwiinkonkxa ezingama-80 ezigidi. Ngokuphucuka kweemfuno zomgangatho wesakhiwo kunye nokukhuthazwa kwezakhiwo ezonga umbane, iimveliso ezinjalo Ubungakanani be-glutathione buya kwanda kancinci kwixesha elizayo.
Kwilizwe, ukwenziwa kunye neteknoloji yokuvelisa olu hlobo lwemveliso sele iqondwe ngokupheleleyo, ii-agents ze-foam ezingena-fluorine ezingawutshabalalisiyo umaleko we-ozone zihlala zisetyenziswa, kwaye iimveliso ezine-foam pre-foam (1) ziye zaphuhliswa. Ngaphandle kokuba abanye abavelisi basasebenzisa iindawo zevalvu ezingeniswe kwamanye amazwe, ezinye izinto ezixhasayo zenziwe ekhaya.
Incwadi yemiyalelo
(1) Okubizwa ngokuba yi-pre-foaming kuthetha ukuba i-80% ye-polyurethane foaming agent ifafazwe emva kokutshiza, kwaye i-foaming elandelayo incinci kakhulu.
Oku kuvumela abasebenzi ukuba baqonde amandla ezandla zabo xa besebenzisa umpu okhupha igwebu, nto leyo elula nelula kwaye ayichithi iglu. Emva kokuba igwebu litshiziwe, iglu iba nkulu kancinci kancinci kunokuba itshizwe.
Ngale ndlela, kunzima kubasebenzi ukuqonda amandla okutsala i-trigger ezandleni zabo, kwaye kulula ukuyichitha iglu, ubuncinane i-1/3 yenkunkuma. Ukongeza, iglu emva kokwandiswa kulula ukuyicinezela iingcango neefestile emva kokulungiswa, njengeglu eqhelekileyo kumzi-mveliso wemarike.
Ixesha lokuthumela: Meyi-25-2021