Ngaba iimeko ezingqongileyo zobushushu obuphezulu zinokubangela iiphaneli zeminyango yePC ukuba zikhuphe izinto eziyingozi?
Iiphaneli zeengcango zePC zisetyenziswa kakhulu kwindawo yokugcina ikhaya, iindawo zokusebenzela zaselabhoratri, iindawo ezivaliweyo zezixhobo zonyango, kunye nezinye iimeko ngenxa yokuchasana nempembelelo yazo, ukungafihli okugqwesileyo, kunye neempawu zokucoca ngokulula. Njengoko ixesha lobushushu obuphezulu lisondela okanye kwiindawo ezikufutshane nemithombo yobushushu, nokuba iipaneli zocango lwePC ziya kukhupha izinto eziyingozi zibe yinkxalabo engundoqo kubasebenzisi. Enyanisweni, lo mbandela kufuneka ugwetywe ngokubanzi ngokusekelwe kwiimpawu zokuxhathisa ubushushu, iingozi ezinokuthi zibe khona, kunye nomgangatho wemveliso wezinto zePC, kwaye ayikwazi ukwenziwa ngokubanzi.
Ngokombono wokumelana nobushushu bezinto zePC, zinozinzo oluqinileyo lwe-thermal kunye noluhlu olucacileyo lokunyamezela ukushisa. Ubushushu bexesha elide bokusetyenziswa ngokukhuselekileyo kweephaneli zeminyango yePC eqhelekileyo yi-120-130 ℃. Xa iqondo lobushushu lifikelela kwi-140-150 ℃, izinto ziyatshintsha ngokuthe ngcembe ukusuka kwimeko eqinileyo ukuya kwimeko ethambileyo. Ukukhuthaza ukubola kunye nokukhululwa kwezinto, ubushushu bufuna ukufikelela kuma-290 ℃ okanye ngaphezulu. Olu phawu luthetha ukuba kwiimeko zobushushu obuphezulu bemihla ngemihla, buphantsi kakhulu kunobushushu bokubola bezinto zePC, kwaye ulwakhiwo lwemolekyuli yeepaneli zocango lwePC luhlala luzinzile, okwenza kube nzima ukukhupha izinto eziyingozi.
Nangona kunjalo, kusekho imingcipheko emibini enokubakho ehambelana neepaneli zocango lwePC kwindawo ezinobushushu obuphezulu, kodwa inqanaba lomngcipheko linokulawulwa ngokukhethwa kwemveliso kunye nokusetyenziswa kweemeko. Uhlobo lokuqala yingxaki yokufuduka kwe-bisphenol A. Ezinye izixhobo ze-PC zinokugcina amanani e-bisphenol A ngexesha lenkqubo yokuvelisa, kwaye ukukhutshwa kwezinto ezinjalo kwiqondo lokushisa elisezantsi kakhulu, elihlangabezana nemigangatho yokhuseleko. Nangona kunjalo, ukunyuka kweqondo lokushisa kuya kukhawulezisa izinga lokufuduka kwabo. Xa ubushushu be-ambient budlula i-80 ℃, ukukhutshwa kwe-bisphenol A kuya kwanda kakhulu, kwaye indawo yamanzi abilayo kwi-100 ℃ iya kwandisa ngakumbi le nqanaba. Okwangoku, uninzi lwabavelisi kwimarike baqalise iipaneli zocango zePC ngaphandle kwe-bisphenol A, ukunciphisa ngakumbi umngcipheko onjalo.
Uhlobo lwesibini lomngcipheko lunxulumene nezongezo ezongeziweyo ngexesha lenkqubo yokuvelisa. Ukomeleza ukuqina kunye nesakhono sokuchasa ukutyheli kweepaneli zocango lwePC, inani elincinci lezithako ezincedisayo ezifana ne-antioxidants kunye nee-agent eziqinisayo zongezwa ngexesha lemveliso. La macandelo azinzile kumaqondo obushushu aqhelekileyo, kodwa xa ubushushu be-ambient busondela kubushushu be-thermal deformation yezinto zePC, ii-arhente ezincedisayo ezimbalwa zinokutshintsha kancinci kwiikhemikhali kwaye ngamanye amaxesha zivelise umkhondo wezinto ezicaphukisayo. Nangona kunjalo, iimeko ezinjalo zinokwenzeka kuphela kwiindawo eziphakamileyo zobushushu obuphezulu, kwaye kunqabile ukuba amaqondo obushushu azinzileyo afikeleleke kwikhaya lemihla ngemihla, iofisi, okanye iimeko zemizi-mveliso eziqhelekileyo. Ke ngoko, akukho mfuneko yakukhathazeka ngokugqithisileyo kwizicelo ezisebenzayo.
Umgangatho wemveliso yinto ephambili emisela ukhuseleko lweepaneli zeengcango zePC kwiindawo ezinobushushu obuphezulu. Iiphaneli zeminyango yePC ezikumgangatho ophezulu ziveliswa kusetyenziswa izinto ezintsha kraca, ukulawula ngokungqongqo isixa esishiyekileyo se-bisphenol A, kunye nokongeza ii-arhente ezincedisayo ezithobela imigangatho yoshishino. Baye bafumana ukumelana nobushushu kunye novavanyo lokhuseleko; Nangona kunjalo, ezinye iipaneli ezingaphantsi kweengcango zePC ezenziwe kwizinto ezisetyenzisiweyo azizange zinciphise ukuxhathisa ubushushu, kodwa zinokunyusa umngcipheko wokukhutshwa kwezinto ezinobungozi kumaqondo aphezulu okushisa ngenxa yokungcola kwimathiriyeli ekrwada okanye izongezo ezingafanelekanga. Ukongeza, idigri yokuguga yeepaneli zeminyango yePC inokuchaphazela ukhuseleko. Ukuba iipaneli zomnyango zibonisa ukuguga okuphawulekayo, ukuzinza kwabo kwe-molecular structure kuya kuncipha, kwaye amathuba okukhupha izinto kwiindawo zokushisa eziphezulu ziya kunyuka ngokufanayo.
Lilonke, ukuba iipaneli zocango lwePC zikhupha izinto ezinobungozi kwindawo ezinobushushu obuphezulu buxhomekeke kwiziphumo ezidityanisiweyo zobushushu, ubude bexesha, kunye nomgangatho wemveliso. Kwiimeko zokusetyenziswa kwemihla ngemihla, iiphaneli zeengcango zePC eziqeqeshiweyo zinokumelana namaqondo obushushu aqhelekileyo kunye nomngcipheko ophantsi kakhulu wokukhutshwa kweziyobisi; Kuphela kwiindawo eziphakamileyo zobushushu obuphezulu obukufutshane okanye obungaphezulu kweqondo lobushushu le-thermal deformation, okanye xa usebenzisa iipaneli zocango zePC ezingaphantsi okanye ezindala, kufuneka zilumkiswe ngeengozi ezinokubakho. Akuyomfuneko ukuba abasebenzisi baxhalabe ngokugqithisileyo. Bafuna kuphela ukukhetha iiphaneli zocango zePC ezihlangabezana nemigangatho yokhuseleko ngokusebenzisa amajelo asemthethweni, ukuphepha ukuvezwa ixesha elide kumaqondo obushushu aphezulu ngaphezulu kwe-130 ℃, ukuqinisekisa ukusetyenziswa ngokukhuselekileyo.