Emkhakheni wokucubungula nokulungisa amatshe, i-epoxy resin isetshenziswa kakhulu. Ngamandla ayo amahle kakhulu okubopha, ukushwabana okuphansi kokuphulukisa, kanye nokumanzisa okuhle nokungeneka, isibe yinto ekahle yokulungisa amaphutha ebusweni betshe nokuqinisa isakhiwo samatshe. Kodwa-ke, inqubo yokwelapha ye-epoxy resin iyinkimbinkimbi futhi ihlanganisa izici eziningi ezibalulekile. Ukulawulwa kwalezi zici kubalulekile ukuze kuqinisekiswe umphumela wokuphulukisa kanye nokusebenza kokugcina kwetshe. Lesi sihloko sizohlola izici ezibalulekile enqubweni yokwelapha ye-epoxy resin futhi sinikeze amasu okulawula ahambisanayo.
Ukukhethwa kwe-epoxy resin kanye ne-ejenti yokwelapha
I-Epoxy resin i-organic polymer compound equkethe amaqembu amabili noma ngaphezulu epoxy. Amaqembu e-epoxy esakhiweni sawo samangqamuzana asebenza kakhulu futhi angabhekana nokusabela okuxhumanisa izinto ezihlukahlukene ngama-ejenti okwelapha ukuze akhe i-polymer yesakhiwo senethiwekhi enezinhlangothi ezintathu. I-ejenti yokwelapha iyisici esiyinhloko esenza ukuba i-epoxy resin iguquke isuka oketshezini iye kokuqinile. Ibhekana nokusabela kokwengeza okuvula indandatho namaqembu e-epoxy ku-epoxy resin, okubangela uchungechunge lokusabela okuxhumanisayo ukwenza inethiwekhi ye-polymer eminyene futhi ezinzile.
Lapho ukhetha i-epoxy resin kanye ne-ejenti yokwelapha, izici zetshe kanye nemvelo yesicelo zidinga ukucatshangelwa. Isibonelo, ngezimo zohlelo lokusebenza ezidinga ukuphulukiswa okusheshayo, ama-ejenti okwelapha anezilinganiso zokuphendula ngokushesha, njenge-aliphatic polyamines, angakhethwa; ngezinto zokwakha zamatshe ezidinga ukumelana nokushisa okuphezulu, ama-polyamines anephunga elimnandi noma ama-anhydride elapha ama-agent angakhethwa. Ngaphezu kwalokho, inani le-ejenti yokwelapha kufanele futhi ilawulwe ngokunembile. Okuningi noma okuncane kakhulu kuzothinta umphumela wokwelapha nokusebenza kokugcina. Ngokuvamile, inani le-ejenti elaphayo kufanele linqunywe ngokusekelwe kokulingana kwe-epoxy kwe-epoxy resin kanye ne-hydrogen esebenzayo elingana ne-ejenti elaphayo ukuze kuqinisekiswe ukuthi kokubili kungasabela ngokugcwele.
Ukulawula izinga lokushisa lokwelapha
Ukushisa okuphulukisayo kungenye yezinto ezibalulekile ezithinta inqubo yokwelapha ye-epoxy resin. Ama-ejenti okwelapha ahlukene afanele amazinga okushisa ahlukene, njengama-ejenti okwelapha asezingeni eliphansi anezinga lokushisa elingaphansi kwegumbi lokushisa, ama-ejenti okwelapha asekamelweni anezinga lokushisa elipholile legumbi ukuya ku-50 ° C, ama-ejenti okwelapha aphakathi nendawo anezinga lokushisa eliphakathi kuka-50 ° C kuya ku-100 ° C, kanye nama-ejenti okwelapha aphezulu angaphezu kuka-100 ° C.
Izinga lokushisa eliphezulu kakhulu noma eliphansi kakhulu lizoba nomthelela omubi emthelela wokwelapha. Izinga lokushisa eliphakeme kakhulu lingabangela ukusabela ngaphambi kwesikhathi kwe-epoxy resin kanye ne-ejenti yokwelapha, kufinyeze ukuphila kwebhodwe lengxube, futhi kwandise ukusetshenziswa kwamandla; kuyilapho izinga lokushisa liphansi kakhulu lizonciphisa izinga lokuphendula lokwelapha, lelule isikhathi sokuphulukisa, futhi lingase liholele ekwelapheni okungaphelele.
Ekusetshenzisweni okungokoqobo, izinga lokushisa elifanele lokuphulukisa kufanele linqunywe ngokusho kohlobo lwe-ejenti yokwelapha ekhethiwe kanye nendawo yokwakha yetshe. Isibonelo, uma wakha endaweni engaphansi kwezinga lokushisa ebusika, okokusebenza kokushisisa kungasetshenziswa ukushisa kuqala itshe kanye nengxube ye-epoxy resin ukuze kwandiswe izinga lokuphendula lokwelapha; ngenkathi isendaweni yokushisa ephezulu ehlobo, ukunakekelwa kufanele kuthathwe ukugwema ukukhanya kwelanga kanye nemithombo yokushisa ephezulu yokushisa ukuze kuvinjelwe ukuphulukiswa ngaphambi kwesikhathi kwe-epoxy resin.
Ukuhlanganisa isilinganiso kanye nokuhlanganisa ukufana
Isilinganiso sokuxuba se-epoxy resin kanye ne-ejenti elaphayo kufanele ihlukaniswe ngokuqinile ngokuhambisana nezidingo zemanuwali yomkhiqizo. Isilinganiso sokuxuba esingalungile sizoholela ekwelapheni okungaphelele noma ukwehla kokusebenza ngemuva kokwelashwa. Isibonelo, i-ejenti yokwelapha ngokweqile izokwenza i-epoxy resin ephulukisiwe ibe brittle futhi ibe nzima, kuyilapho i-ejenti yokwelapha enganele izoholela ekwelapheni okungaphelele futhi kuthinte amandla okubopha. Ekusebenzeni kwangempela, amathuluzi okulinganisa anembile, njengezikali ze-electronic, angasetshenziswa ukuqinisekisa ukunemba kwesilinganiso sokuxuba.
Ukuxuba ukufana nakho kuyisici esibalulekile esithinta umphumela wokwelapha. Ukuxuba okungalingani kuzoholela ekuphenduleni okunganele phakathi kwe-epoxy resin kanye ne-ejenti yokwelapha, ukwakha izindawo zokuphulukiswa kwendawo okungaphelele, ngaleyo ndlela kuthinte umphumela wokubopha kanye nokusebenza okuphelele kwetshe. Phakathi nenqubo yokuxuba, imishini yokuxuba efanele, njenge-mixer enesivinini esikhulu, kufanele isetshenziselwe ukuqinisekisa ukuthi i-epoxy resin kanye ne-ejenti yokwelapha ingaxutshwa ngokugcwele. Ngesikhathi esifanayo, isikhathi sokuxuba kufanele futhi silawulwe ngaphakathi kwebanga elifanele. Isikhathi esifushane kakhulu sokuxuba asikwazi ukwenza ingxube ifanise, kuyilapho isikhathi eside kakhulu sokuxuba singabangela ingxube ukuthi ilulame ngaphambi kwesikhathi.
Ukulawulwa komswakama kwemvelo
Umswakama wemvelo nawo unomphumela othile enqubweni yokwelapha ye-epoxy resin. Umswakama owedlulele uzodala ukuthi i-epoxy resin imunce umswakama emoyeni, ithinte ukusabela kokwelapha, futhi ingase ibangele amabhamuza noma imifantu ebusweni be-epoxy resin ephulukisiwe. Ngakho-ke, lapho wakha endaweni enomswakama ophezulu, izinyathelo ezifanele kufanele zithathwe ukuze kuncishiswe umswakama wemvelo, njengokusebenzisa izinto zokususa umswakama noma ukubeka izintuba endaweni yokwakha ukuze kuqinisekiswe ukuthi i-epoxy resin ingakwazi ukuphulukisa ngokujwayelekile.
Ukwelashwa kwangaphambili kwendawo yamatshe
Ukuhlanzeka nokuqina kwetshe letshe kunethonya elibalulekile kumphumela wokubopha we-epoxy resin. Ngaphambi kokufaka i-glue, indawo yamatshe kufanele ihlanzwe kahle ukuze kukhishwe uthuli, amafutha, i-wax nokunye ukungcola okungaphezulu ukuze kuqinisekiswe ukuthi i-epoxy resin ingathintana ngokugcwele futhi ihlanganiswe netshe letshe. Ngesikhathi esifanayo, ubulukhuni obuphezulu obufanele bungakhuphula indawo yokuxhumana phakathi kwe-epoxy resin netshe futhi kuthuthukise amandla okubopha. Ingaphezulu letshe lingaphathwa kusengaphambili ngokugaya, i-sandblasting nezinye izindlela zokwandisa ukuqina kwayo.
Ukulawula isikhathi sokuphumula
Isikhathi sokwelapha sisho isikhathi esidingekayo ukuze i-epoxy resin yelashwe ngokugcwele kusukela ekuqaleni kokuxuba. Ubude besikhathi sokwelapha buncike ezintweni ezifana nohlobo lwe-epoxy resin, uhlobo lwe-ejenti elaphayo kanye nezimo zokuphulukisa. Ekusetshenzisweni okungokoqobo, isikhathi esifanele sokuphulukisa kufanele sinqunywe ngokuvumelana nezidingo zokwakha kanye nemvelo yokusebenzisa itshe. Isibonelo, kumatshe adinga ukusetshenziswa ngokushesha, isistimu ye-epoxy resin enesikhathi esifushane sokuphulukisa ingakhethwa; futhi kwamanye amatshe anezidingo eziphakeme zamandla okubopha, isikhathi sokuphulukisa singanwetshwa ngokufanelekile ukuze kuqinisekiswe ukuthi i-epoxy resin ingelapheka ngokugcwele.
Phakathi nenqubo yokuphulukisa, izinga lokuphulukisa le-epoxy resin kufanele lihlolwe njalo, elingahlulelwa ngokubheka izinguquko zombala walo, izinguquko zokuqina nokuthi lingakwazi yini ukumelana namandla athile angaphandle. Lapho i-epoxy resin ilashwa ngokuphelele, ukugaya okulandelayo, ukupholisha nezinye izinqubo zingenziwa.
Ukusetshenziswa okunengqondo kwezithasiselo
Ukuze kuthuthukiswe ukusebenza kwe-epoxy resin, ezinye izithasiselo ezifana ne-plasticizers, diluents, fillers, njll ngezinye izikhathi zengezwa ku-epoxy resin. Ama-Plasticizer angathuthukisa ukuguquguquka kwe-epoxy resin futhi anciphise ukubola kwawo ngemva kokwelashwa, kodwa ama-plasticizers ngokweqile azophazamisa amandla okubopha e-epoxy resin. Ama-Diluent anganciphisa i-viscosity ye-epoxy resin futhi athuthukise ukumanzisa kwawo nokungeneka, kodwa inani kufanele futhi lilawulwe ukugwema ukuthikameza umphumela wokwelapha. Ama-fillers angathuthukisa impahla yokugcwalisa ye-epoxy resin futhi anciphise izindleko, kodwa ukugcwalisa okuningi kuzonciphisa amandla okubopha kanye nokuqina kwe-epoxy resin.
Uma usebenzisa izithasiselo, uhlobo kanye nenani lezithasiselo kufanele kukhethwe ngokunengqondo ngokusho kohlobo lwe-epoxy resin kanye nezidingo zokusetshenziswa kwetshe. Ngesikhathi esifanayo, ukuhleleka kokwengeza izithasiselo kanye nendlela yokuxuba kufanele futhi kuqashelwe ukuze kuqinisekiswe ukuthi izithasiselo zingahlakazwa ngokulinganayo ku-epoxy resin.
Ukuhlolwa kwekhwalithi nokuqapha
Ngesikhathi senqubo yokuphulukisa ye-epoxy resin, kufanele kusungulwe uhlelo oluqinile lokuhlolwa kwekhwalithi kanye nokuqapha ukuze kuqinisekiswe umphumela wokuphulukisa nokusebenza kokugcina kwetshe. Eminye imishini yokuhlola echwepheshile kanye nezindlela, njengokuhlola amandla e-tensile, ukuhlolwa kwamandla e-shear, ukuhlolwa kokuqina, njll., kungasetshenziswa ukuhlola ukusebenza kwe-epoxy resin ephulukisiwe. Ngesikhathi esifanayo, isixhumanisi ngasinye senqubo yokwakha kufanele siqashwe, njengesilinganiso sokuxuba, izinga lokushisa lokuphulukisa, isikhathi sokuphulukisa, njll., ukuze kutholakale ngokushesha futhi kulungiswe izinkinga ezingaba khona.
Isiphetho
Ukusetshenziswa kwe-epoxy resin ekucubunguleni nasekulungiseni amatshe kunamathemba abanzi, kodwa inqubo yayo yokwelapha iyinkimbinkimbi futhi ihilela izici eziningi ezibalulekile. Ngokukhetha i-epoxy resin kanye ne-ejenti yokwelapha, ukulawula izinga lokushisa elelaphayo, ukulawula isilinganiso sokuxuba nokuhlanganisa ukufana, ukulungisa umswakama wemvelo, ukulungiswa kwetshe letshe, ukunqunywa kwesikhathi sokuphulukisa, ukusetshenziswa okunengqondo kwezithasiselo, nokulawula okuqinile kokuhlolwa nokuqapha izinga, umphumela wokuphulukisa we-epoxy resin kungaba ngcono ukusebenza kwetshe kanye nokuqinisekisa ukusebenza okuphumelelayo kwe-epoxy. ubunjiniyela.
Ekusetshenzisweni okungokoqobo, amasu okulawula izici ezibalulekile ezingenhla kufanele asetshenziswe ngokuguquguqukayo ngokuya ngohlobo oluthile lwamatshe nendawo yokwakha ukuze kuzuzwe umphumela wokwakha ongcono kakhulu.