Ukuthuthukiswa kwei-resin ye-polyester engagcweleImikhiqizo inomlando weminyaka engaphezu kwengu-70. Esikhathini esifushane kangaka, imikhiqizo ye-polyester resin engagcwalisiwe ithuthuke ngokushesha ngokwezinga lomkhiqizo kanye nobuchwepheshe. Njengoba imikhiqizo ye-polyester resin yangaphambili engagcwalisiwe ithuthuke yaba enye yezinhlobo ezinkulu embonini ye-thermosetting resin. Ngesikhathi sokuthuthukiswa kwama-polyester resin angagcwalisiwe, ulwazi lobuchwepheshe mayelana namalungelo obunikazi omkhiqizo, omagazini bebhizinisi, izincwadi zobuchwepheshe, njll. luvela ngokulandelana. Kuze kube manje, kunamakhulu ama-patent okusungula izinto minyaka yonke, ahlobene ne-polyester resin engagcwalisiwe. Kungabonakala ukuthi ubuchwepheshe bokukhiqiza nokusetshenziswa kwe-polyester resin engagcwalisiwe sebukhule kakhulu ngokuthuthukiswa kokukhiqiza, futhi kancane kancane buye bakha uhlelo lwayo lobuchwepheshe oluhlukile noluphelele lokukhiqiza kanye nombono wokusetshenziswa. Enkambisweni yokuthuthukiswa edlule, ama-polyester resin angagcwalisiwe abe negalelo elikhethekile ekusetshenzisweni okuvamile. Esikhathini esizayo, izothuthukela kwezinye izinkambu zezinhloso ezikhethekile, futhi ngesikhathi esifanayo, izindleko zama-resin ezinhloso ezijwayelekile zizoncishiswa. Okulandelayo kunezinhlobo ezithakazelisayo nezithembisayo ze-polyester resin engagcwali, okuhlanganisa: i-resin encipha kancane, i-resin egcina ilangabi, i-resin eqinile, i-resin ephansi yokuvutha, i-resin engagqwali, i-resin engagqwali, i-resin ekhazimulayo, i-resin ekhazimulayo. Ama-resin e-polyester angagcwali, ama-resin ashibhile anezakhiwo ezikhethekile, kanye neminwe yemithi esebenza kahle kakhulu eyenziwe ngezinto ezintsha zokusetshenziswa kanye nezinqubo.
1. I-resin yokuncipha okuphansi
Lolu hlobo lwe-resin lungaba yisihloko esidala nje. I-resin ye-polyester engagcwalisiwe ihambisana nokuncipha okukhulu ngesikhathi sokuqina, futhi izinga lokuncipha kwevolumu elijwayelekile lingu-6-10%. Lokhu kuncipha kungalimaza kakhulu noma kuqhekeze izinto, hhayi enkambisweni yokubumba yokucindezela (SMC, BMC). Ukuze kunqotshwe lokhu kwehluleka, ama-resin e-thermoplastic avame ukusetshenziswa njengezithasiselo zokuncipha okuphansi. Ilungelo lobunikazi kule ndawo lanikezwa i-DuPont ngo-1934, inombolo yelungelo lobunikazi US 1.945,307. Leli lungelo lobunikazi lichaza i-copolymerization yama-dibasic antelopelic acids ngama-vinyl compounds. Ngokusobala, ngaleso sikhathi, leli lungelo lobunikazi laba ngumholi wezobuchwepheshe bokuncipha okuphansi kwama-resin e-polyester. Kusukela ngaleso sikhathi, abantu abaningi baye bazinikela ekutadisheni izinhlelo ze-copolymer, ezazibhekwa njenge-alloys zepulasitiki. Ngo-1966 ama-resin kaMarco okuncipha okuphansi aqala ukusetshenziswa ekubumbeni nasekukhiqizeni kwezimboni.
I-Plastics Industry Association kamuva yabiza lo mkhiqizo ngokuthi “SMC”, okusho ukuthi i-sheet molding compound, kanti i-low-shrinkage premix compound yayo “BMC” isho i-bulk molding compound. Kuma-SMC sheets, ngokuvamile kuyadingeka ukuthi izingxenye ezibunjwe nge-resin zibe nokubekezelelana okuhle, ukuguquguquka kanye ne-A-grade gloss, futhi imifantu emincane ebusweni kufanele igwenywe, okudinga ukuthi i-resin ehambisanayo ibe nesilinganiso sokuncipha esiphansi. Yiqiniso, amalungelo obunikazi amaningi asethuthukise futhi athuthukise lobu buchwepheshe, futhi ukuqonda indlela yokusebenza komphumela wokuncipha okuphansi kuye kwakhula kancane kancane, futhi kuye kwavela ama-agent ahlukahlukene okuncipha okuphansi noma izithasiselo eziphansi njengoba isikhathi sidinga. Izithasiselo ezivame ukusetshenziswa zokuncipha okuphansi yi-polystyrene, i-polymethyl methacrylate nokunye okunjalo.
2. I-resin ebamba ilangabi
Ngezinye izikhathi izinto ezivimbela ilangabi zibaluleke njengokusindisa izidakamizwa, futhi izinto ezivimbela ilangabi zingagwema noma zinciphise ukwenzeka kwezinhlekelele. EYurophu, inani lokufa komlilo lehle cishe ngo-20% eminyakeni eyishumi edlule ngenxa yokusetshenziswa kwezinto ezivimbela ilangabi. Ukuphepha kwezinto ezivimbela ilangabi nakho kubaluleke kakhulu. Kuyinqubo ehamba kancane futhi enzima ukulinganisa uhlobo lwezinto ezisetshenziswa embonini. Njengamanje, i-European Community iye futhi yenza ukuhlolwa kwezingozi eziningi ezivimbela ilangabi ezisekelwe ku-halogen kanye ne-halogen-phosphorus., eziningi zazo ezizoqedwa phakathi kuka-2004 no-2006. Njengamanje, izwe lethu ngokuvamile lisebenzisa ama-diols aqukethe i-chlorine noma aqukethe i-bromine noma ama-dibasic acid halogen esikhundleni sezinto zokusetshenziswa ukulungisa ama-reactive flame resins. Izinto ezivimbela ilangabi ze-halogen zizokhiqiza umusi omningi lapho zisha, futhi zihambisana nokukhiqizwa kwe-hydrogen halide ecasulayo kakhulu. Umusi ominyene kanye nentuthu enobuthi ekhiqizwa ngesikhathi senqubo yokusha kubangela umonakalo omkhulu kubantu.
Ngaphezu kwama-80% ezingozi zomlilo zibangelwa yilokhu. Okunye okubi kokusebenzisa izinto ezivimbela umlilo ezisekelwe ku-bromine noma ku-hydrogen ukuthi amagesi aqothulayo nangcolisa imvelo azokhiqizwa lapho eshiswa, okuzoholela ekulimaleni kwezingxenye zikagesi. Ukusetshenziswa kwezinto ezivimbela umlilo ezingaphili njenge-alumina emanzi, i-magnesium, i-canopy, i-molybdenum compounds kanye nezinye izithako ezivimbela umlilo kungakhiqiza intuthu encane kanye ne-flame resins enobuthi obuphansi, yize zinemiphumela ecacile yokucindezela intuthu. Kodwa-ke, uma inani le-inorganic flame resistant filler likhulu kakhulu, ngeke nje kuphela ukwanda kwe-resin, okungafaneleki ekwakhiweni, kodwa futhi nalapho inani elikhulu le-additive flame resistant lingezwa ku-resin, kuzothinta amandla okusebenza kanye nezakhiwo zikagesi ze-resin ngemva kokuqina.
Njengamanje, amalungelo obunikazi amaningi angaphandle abike ubuchwepheshe bokusebenzisa izinto ezivimbela umlilo ezisekelwe ku-phosphorus ukukhiqiza ama-resin avimbela umlilo aphansi kanye nentuthu encane. Izinto ezivimbela umlilo ezisekelwe ku-phosphorus zinomphumela omkhulu wokuvinjelwa komlilo. I-metaphosphoric acid ekhiqizwa ngesikhathi sokusha ingaguqulwa ibe yi-polymer ezinzile, yakha ungqimba oluvikelayo, imboze ubuso bento evuthayo, ihlukanise umoya-mpilo, ikhuthaze ukuphelelwa amanzi emzimbeni kanye nokufakwa kwe-carbon ebusweni be-resin, futhi yakhe ifilimu evikelayo eyenziwe nge-carbon. Ngaleyo ndlela kuvinjelwe ukusha futhi ngesikhathi esifanayo izinto ezivimbela umlilo ezisekelwe ku-phosphorus zingasetshenziswa kanye nezinto ezivimbela umlilo ze-halogen, ezinomphumela ocacile wokubambisana. Yiqiniso, isiqondiso socwaningo lwesikhathi esizayo se-resin evimbela umlilo siwumusi ophansi, ubuthi obuphansi kanye nezindleko eziphansi. I-resin efanelekile ayinayo intuthu, inobuthi obuphansi, ishibhile, ayithinti i-resin, inezakhiwo zomzimba ezingokwemvelo, ayidingi ukwengeza izinto ezengeziwe, futhi ingakhiqizwa ngqo esitshalweni sokukhiqiza i-resin.
3. I-resin yokuqinisa
Uma kuqhathaniswa nezinhlobo zokuqala ze-polyester resin ezingagcwali, ukuqina kwe-resin yamanje kuthuthukiswe kakhulu. Kodwa-ke, ngokuthuthukiswa komkhakha ongezansi we-polyester resin engagcwali, kunezidingo ezintsha ezengeziwe ezibekwa phambili ekusebenzeni kwe-resin engagcwali, ikakhulukazi maqondana nokuqina. Ubuthakathaka be-resin ezingagcwali ngemva kokulungiswa sekucishe kube yinkinga ebalulekile evimbela ukuthuthukiswa kwe-resin ezingagcwali. Kungakhathaliseki ukuthi umkhiqizo wezandla owenziwe ngobumba noma umkhiqizo ohlanganisiwe noma onamanxeba, ukunwebeka lapho kuphuka kuba inkomba ebalulekile yokuhlola ikhwalithi yemikhiqizo ye-resin.
Njengamanje, abanye abakhiqizi bakwamanye amazwe basebenzisa indlela yokwengeza i-resin egcwalisiwe ukuze bathuthukise ukuqina. Njengokwengeza i-polyester egcwalisiwe, irabha ye-styrene-butadiene kanye nerabha ye-styrene-butadiene eqediwe yi-carboxy (suo-), njll., le ndlela ingeyendlela yokuqinisa ngokomzimba. Ingasetshenziswa futhi ukwethula ama-polymer amabhlogo eketangeni eliyinhloko le-polyester engagcwalisiwe, njengesakhiwo senethiwekhi esihlanganayo esakhiwe yi-resin ye-polyester engagcwalisiwe kanye ne-resin ye-epoxy kanye ne-polyurethane, okuthuthukisa kakhulu amandla okudonseka kanye namandla okushaya kwe-resin. , le ndlela yokuqinisa ingeyendlela yokuqinisa ngamakhemikhali. Inhlanganisela yokuqinisa ngokomzimba kanye nokuqinisa ngamakhemikhali ingasetshenziswa futhi, njengokuxuba i-polyester engagcwalisiwe esabela kakhulu nezinto ezingagcwalisi kangako ukuze kufezwe ukuguquguquka okufiselekayo.
Njengamanje, amashidi e-SMC asetshenziswa kabanzi embonini yezimoto ngenxa yesisindo sawo esilula, amandla aphezulu, ukumelana nokugqwala, kanye nokuguquguquka komklamo. Ezingxenyeni ezibalulekile ezifana namaphaneli ezimoto, iminyango yangemuva, namaphaneli angaphandle, kudingeka ukuqina okuhle, njengamaphaneli angaphandle ezimoto. Ama-guard angagoba kancane futhi abuyele esimweni sawo sokuqala ngemuva kokushayisana okuncane. Ukwandisa ukuqina kwe-resin kuvame ukulahlekelwa ezinye izakhiwo ze-resin, njengokuqina, amandla okuguquguquka, ukumelana nokushisa, kanye nesivinini sokuqina ngesikhathi sokwakhiwa. Ukuthuthukisa ukuqina kwe-resin ngaphandle kokulahlekelwa ezinye izakhiwo ezingokwemvelo ze-resin sekuyinto ebalulekile ocwaningweni nasekuthuthukisweni kwama-resin e-polyester angagcwali.
4. I-resin eguquguqukayo ye-styrene ephansi
Enkambisweni yokucubungula i-resin ye-polyester engagcwalisiwe, i-styrene enobuthi eguquguqukayo izolimaza kakhulu impilo yezisebenzi zokwakha. Ngesikhathi esifanayo, i-styrene ikhishwa emoyeni, okuzophinde kubangele ukungcoliswa komoya okukhulu. Ngakho-ke, iziphathimandla eziningi zikhawulela ukugcwala okuvunyelwe kwe-styrene emoyeni we-workshop yokukhiqiza. Isibonelo, e-United States, izinga layo lokuchayeka elivumelekile (izinga lokuchayeka elivumelekile) lingu-50ppm, kanti eSwitzerland inani layo le-PEL lingu-25ppm, okuqukethwe okuphansi okunjalo akulula ukukufeza. Ukuthembela ekungeneni komoya okunamandla nakho kunqunyelwe. Ngesikhathi esifanayo, ukungenisa umoya okunamandla kuzoholela ekulahlekelweni kwe-styrene ebusweni bomkhiqizo kanye nokuguquguquka kwenani elikhulu le-styrene emoyeni. Ngakho-ke, ukuthola indlela yokunciphisa ukuguquguquka kwe-styrene, kusukela empandeni, kusadingeka ukuqeda lo msebenzi esitshalweni sokukhiqiza i-resin. Lokhu kudinga ukuthuthukiswa kwama-resins aphansi e-styrene volatility (LSE) angangcolisi noma angangcolisi umoya kakhulu, noma ama-resins e-polyester angagcwali ngaphandle kwama-monomers e-styrene.
Ukunciphisa okuqukethwe kwama-monomer aguquguqukayo kube yisihloko esathuthukiswa yimboni ye-polyester resin yakwamanye amazwe engagcwele eminyakeni yamuva. Kunezindlela eziningi ezisetshenziswa njengamanje: (1) indlela yokwengeza ama-low volatility inhibitors; (2) ukwakheka kwama-polyester resin angagcwele ngaphandle kwama-styrene monomers kusebenzisa i-divinyl, i-vinylmethylbenzene, i-α-methyl Styrene ukuze kuthathelwe indawo ama-vinyl monomer aqukethe ama-styrene monomers; (3) Ukwakheka kwama-polyester resin angagcwele anama-styrene monomers aphansi ukusebenzisa ama-monomer angenhla nama-styrene monomers ndawonye, njengokusebenzisa i-diallyl phthalate Ukusetshenziswa kwama-vinyl monomer abilayo kakhulu njengama-esters nama-acrylic copolymer anama-styrene monomers: (4) Enye indlela yokunciphisa ukuguquguquka kwe-styrene ukwethula amanye amayunithi afana ne-dicyclopentadiene kanye nezinto eziphuma kuyo kuma-polyester angagcwele i-Resin skeleton, ukuze kufezwe i-viscosity ephansi, futhi ekugcineni kuncishiswe okuqukethwe kwe-styrene monomer.
Ekufuneni indlela yokuxazulula inkinga yokuguquguquka kwe-styrene, kubalulekile ukucabangela ngokuphelele ukusebenza kwe-resin ezindleleni zokubumba ezikhona njengokufutha ubuso, inqubo yokulamina, inqubo yokubumba ye-SMC, izindleko zezinto zokusetshenziswa zokukhiqiza izimboni, kanye nokuhambisana nohlelo lwe-resin. , Ukusebenza kabusha kwe-resin, i-viscosity, izakhiwo zemishini ze-resin ngemva kokubumba, njll. Ezweni lakithi, akukho mthetho ocacile wokunciphisa ukuguqulwa kwe-styrene. Kodwa-ke, ngokuthuthukiswa kwezindinganiso zokuphila zabantu kanye nokuthuthukiswa kokuqwashisa kwabantu ngempilo yabo kanye nokuvikelwa kwemvelo, kuyindaba yesikhathi kuphela ngaphambi kokuba kudingeke umthetho ofanele ezweni elingathengi njengathi.
5. I-resin engamelana nokugqwala
Enye yezindlela ezinkulu zokusebenzisa ama-resin e-polyester angagcwali ukumelana nokugqwala kwawo kumakhemikhali anjengezinyibilikisi eziphilayo, ama-acid, izisekelo, kanye nosawoti. Ngokusho kokwethulwa kochwepheshe benethiwekhi ye-resin engagcwali, ama-resin amanje angagcwali ukugqwala ahlukaniswe ngezigaba ezilandelayo: (1) uhlobo lwe-o-benzene; (2) uhlobo lwe-iso-benzene; (3) uhlobo lwe-p-benzene; (4) uhlobo lwe-bisphenol A; (5) uhlobo lwe-vinyl ester; kanye nezinye ezifana nohlobo lwe-xylene, uhlobo lwe-halogen-containing compound, njll. Ngemva kwamashumi eminyaka okuhlolwa okuqhubekayo yizizukulwane eziningana zososayensi, ukugqwala kwe-resin kanye nendlela yokumelana nokugqwala kuye kwafundwa ngokucophelela. I-resin iguqulwa ngezindlela ezahlukahlukene, njengokungenisa uhlaka lwama-molecule okunzima ukumelana nokugqwala ku-resin ye-polyester engagcwali, noma ukusebenzisa i-polyester engagcwali, i-vinyl ester kanye ne-isocyanate ukwakha isakhiwo senethiwekhi esingena phakathi, okubaluleke kakhulu ekuthuthukiseni ukumelana nokugqwala kwe-resin. Ukumelana nokugqwala kusebenza kahle kakhulu, futhi i-resin ekhiqizwa ngendlela yokuxuba i-resin ye-acid ingaphinde ifinyelele ukumelana nokugqwala okungcono.
Uma kuqhathaniswaama-resin epoxy,Ukucutshungulwa okulula nokungabizi kwama-resin e-polyester angagcwali kube yizinzuzo ezinkulu. Ngokusho kochwepheshe be-resin engagcwali, ukumelana nokugqwala kwe-resin ye-polyester engagcwali, ikakhulukazi ukumelana ne-alkali, kuphansi kakhulu kunokwe-resin ye-epoxy. Awukwazi ukuthatha indawo ye-resin ye-epoxy. Njengamanje, ukwanda kwezitezi zokulwa nokugqwala kudale amathuba nezinselele kuma-resin e-polyester angagcwali. Ngakho-ke, ukuthuthukiswa kwama-resin akhethekile okulwa nokugqwala kunamathuba abanzi.
Ijazi lejeli lidlala indima ebalulekile ezintweni ezihlanganisiwe. Aligcini nje ngokudlala indima yokuhlobisa ebusweni bemikhiqizo ye-FRP, kodwa futhi lidlala indima ekumelaneni nokuguguleka, ukumelana nokuguga kanye nokumelana nokugqwala kwamakhemikhali. Ngokusho kochwepheshe benethiwekhi ye-resin engagcwalisiwe, isiqondiso sokuthuthukiswa kwe-resin yejazi lejeli ukuthuthukisa i-resin yejazi lejeli ene-styrene volatilization ephansi, ukomisa kahle umoya kanye nokumelana nokugqwala okunamandla. Kunemakethe enkulu yamajazi ejeli angamelani nokushisa kuma-resin ejazi lejeli. Uma impahla ye-FRP icwiliswa emanzini ashisayo isikhathi eside, amabhamuza azovela ebusweni. Ngesikhathi esifanayo, ngenxa yokungena kancane kancane kwamanzi ezintweni ezihlanganisiwe, amabhamuza angaphezulu azokhula kancane kancane. Amabhamuza ngeke athinte kuphela ukubukeka kwejazi lejeli kuzonciphisa kancane kancane izakhiwo zamandla zomkhiqizo.
I-Cook Composites and Polymers Co. yaseKansas, e-USA, isebenzisa izindlela eziqediwe ze-epoxy kanye ne-glycidyl ether ukukhiqiza i-resin yejazi le-gel ene-viscosity ephansi kanye nokumelana okuhle kwamanzi kanye ne-solvent. Ngaphezu kwalokho, inkampani isebenzisa futhi i-resin ye-polyether polyol-modified kanye ne-epoxy-terminated A (i-resin eguquguqukayo) kanye ne-dicyclopentadiene (DCPD)-modified resin B (rigid resin) compound, zombili ezine-resin eqediwe ngamanzi. Ngemva kokuhlanganiswa, i-resin enokumelana namanzi ayikwazi nje kuphela ukuba nokumelana okuhle namanzi, kodwa futhi ibe nokuqina okuhle namandla. Izinyibilikisi noma ezinye izinto ezinama-molecule aphansi zingena ohlelweni lwezinto ze-FRP ngesendlalelo sejazi le-gel, zibe i-resin engangeni manzi enezakhiwo ezinhle kakhulu eziphelele.
7. I-resin ye-polyester engagcwali kahle ephulukisa kalula
Izici zokupholisa ukukhanya kwe-polyester resin engagcwalisiwe ziwukuphila isikhathi eside ebhodweni kanye nesivinini sokupholisa esisheshayo. Ama-polyester resin angagcwalisiwe angahlangabezana nezidingo zokunciphisa ukuguquguquka kwe-styrene ngokupholisa ukukhanya. Ngenxa yokuthuthuka kwama-photosensitizers namadivayisi okukhanyisa, isisekelo sokuthuthukiswa kwama-resin angagcwalisiwe sibekwe. Ama-polyester resin ahlukahlukene angagcwalisiwe e-UV athuthukiswe ngempumelelo futhi afakwa ekukhiqizweni ngobuningi obukhulu. Izakhiwo zezinto ezibonakalayo, ukusebenza kwenqubo kanye nokumelana nokuguguleka kwendawo kuyathuthukiswa, futhi ukusebenza kahle kokukhiqiza nakho kuyathuthukiswa ngokusebenzisa le nqubo.
8. I-resin engabizi kakhulu enezakhiwo ezikhethekile
Ama-resin anjalo afaka ama-resin ane-foam kanye nama-resin aqueous. Njengamanje, ukushoda kwamandla ezinkuni kunomthelela okhuphukayo. Kukhona futhi ukushoda kwabasebenzi abanamakhono abasebenza embonini yokucubungula izinkuni, futhi laba basebenzi baya ngokuya bekhokhelwa. Izimo ezinjalo zidala izimo zokuba amapulasitiki obunjiniyela angene emakethe yezinkuni. Ama-resin ane-foam angagcwalisiwe kanye nama-resin aqukethe amanzi azothuthukiswa njengezinkuni zokwenziwa embonini yefenisha ngenxa yezindleko zawo eziphansi kanye nezakhiwo zawo ezinamandla aphezulu. Ukusetshenziswa kuzohamba kancane ekuqaleni, bese kuthi ngokuthuthuka okuqhubekayo kobuchwepheshe bokucubungula, lolu hlelo lokusebenza luzothuthukiswa ngokushesha.
Ama-resin e-polyester angagcwalisiwe angafakwa i-foam ukuze kwenziwe ama-resin ane-foam angasetshenziswa njengamaphaneli odonga, izihlukanisi zangasese ezakhiwe ngaphambilini, nokuningi. Ukuqina namandla epulasitiki ene-foam ene-resin ye-polyester engagcwalisiwe njenge-matrix kungcono kune-PS ene-foam; kulula ukuyicubungula kune-PVC ene-foam; izindleko ziphansi kunezepulasitiki ye-polyurethane ene-foam, futhi ukungezwa kwama-retant flame kungenza futhi kube yinto evimbela ilangabi futhi elwa nokuguga. Nakuba ubuchwepheshe bokusetshenziswa kwe-resin sebuthuthukisiwe ngokugcwele, ukusetshenziswa kwe-resin ye-polyester engagcwalisiwe ene-foam efenisha akunakwanga kakhulu. Ngemuva kophenyo, abanye abakhiqizi be-resin banesifiso esikhulu sokuthuthukisa lolu hlobo olusha lwezinto. Ezinye izinkinga ezinkulu (ukususa isikhumba, isakhiwo sezinyosi, ubudlelwano besikhathi sokugqwala i-gel, ukulawulwa kwejika le-exothermic akukaxazululwa ngokugcwele ngaphambi kokukhiqizwa kwezentengiselwano. Kuze kutholakale impendulo, le resin ingasetshenziswa kuphela ngenxa yezindleko zayo eziphansi embonini yefenisha. Uma lezi zinkinga sezixazululiwe, le resin izosetshenziswa kabanzi ezindaweni ezifana nezinto ezivimbela ilangabi le-foam kunokusebenzisa nje umnotho wayo.
Ama-resin e-polyester angagcwali aqukethe amanzi angahlukaniswa ngezinhlobo ezimbili: uhlobo oluncibilika emanzini kanye nohlobo lwe-emulsion. Kusukela ngawo-1960 phesheya kwezilwandle, kube khona amalungelo obunikazi kanye nemibiko yezincwadi kule ndawo. I-resin equkethe amanzi iwukwengeza amanzi njengesigcwalisi se-resin ye-polyester engagcwali ku-resin ngaphambi kwejeli ye-resin, futhi okuqukethwe kwamanzi kungaba phezulu ku-50%. I-resin enjalo ibizwa ngokuthi i-WEP resin. I-resin inezici zezindleko eziphansi, isisindo esincane ngemva kokupholisa, ukubambezeleka okuhle komlilo kanye nokuncipha okuphansi. Ukuthuthukiswa nocwaningo lwe-resin equkethe amanzi ezweni lakithi kwaqala ngawo-1980, futhi sekuphele isikhathi eside. Ngokuphathelene nokusetshenziswa, isetshenziswe njenge-ejenti yokuqinisa. I-resin ye-polyester engagcwali emanzini uhlobo olusha lwe-UPR. Ubuchwepheshe elabhorethri buya ngokuya bukhula, kodwa kunocwaningo oluncane mayelana nokusetshenziswa. Izinkinga ezidinga ukuxazululwa kabanzi ukuzinza kwe-emulsion, ezinye izinkinga enkambisweni yokwelapha nokubumba, kanye nenkinga yokuvunyelwa kwamakhasimende. Ngokuvamile, i-resin ye-polyester engagcwalisiwe engamathani ayi-10,000 ingakhiqiza amathani angama-600 amanzi angcolile minyaka yonke. Uma ukuncipha okukhiqizwa enqubweni yokukhiqizwa kwe-resin ye-polyester engagcwalisiwe kusetshenziselwa ukukhiqiza i-resin equkethe amanzi, kuzonciphisa izindleko ze-resin futhi kuxazulule inkinga yokukhiqiza ukuvikelwa kwemvelo.
Sithengisa imikhiqizo elandelayo ye-resin: i-resin ye-polyester engagcwali;i-vinyl resin; i-resin yejazi lejeli; i-resin ye-epoxy.
Siphinde sikhiqizei-fiberglass eqondile ehambahambayo,omata be-fiberglass, i-fiberglass mesh, futhiukuzulazula okulukiwe kwe-fiberglass.
Xhumana nathi :
Inombolo yocingo:+8615823184699
Inombolo yocingo: +8602367853804
Email:marketing@frp-cqdj.com
Isikhathi sokuthunyelwe: Juni-08-2022
