I-1, intshayelelo yefilimu yepolyester

Ifilimu ye-polyester ikwabizwa ngokuba yifilimu ye-polyester (i-PET) (ifilimu ekhanyayo, ifilimu ye-polyester, iphepha elibucayi, ifilimu ye-polyester, ifilimu ye-benzene tin, i-cellophane, ifilimu yokukhulula), i-polyethylene terephthalate njengezinto eziluhlaza, ukusetyenziswa kwendlela yokukhupha kwifilimu enzima, kwaye emva koko ukunwebeka kwe-bidirectional okwenziwe ngezinto zefilimu.

Ifilimu ye-polyester yasekhaya (ifilimu ye-polyester, ifilimu yokukhusela indalo, ifilimu ye-PET, ifilimu ye-opal kunye nezinye izinto eziprintwayo kunye nokupakisha), isetyenziswa ngokubanzi kwi-glass fiber eqiniswe kwishishini leplastiki, imboni yezixhobo zokwakha, ishishini lokushicilela, iyeza kunye nempilo.

Okwangoku, i-China iye yaphuhlisa ngempumelelo ifilimu ye-PET twist, engenabungozi, engenambala, ecacileyo, ekwazi ukumelana nokufuma, ephefumulayo, ethambileyo, eqinile, e-acid-alkali igrisi kunye ne-solvent resistant, kwaye ingoyiki ukushisa okuphezulu kunye nokuphantsi.Ngaba yinto engeyiyo ityhefu, into enokuphinda isetyenziswe elubala, isetyenziswa ikakhulu kwiintlobo ngeentlobo zeziselo, amanzi amaminerali kunye nokupakishwa kwefilimu, okwangoku isetyenziswa kakhulu kwihlabathi enye yezinto zokupakisha.

Ifilimu yeMylar luhlobo lwefilimu yeplastiki yepolymer, ngenxa yeepropathi zayo ezigqwesileyo ezibanzi kwaye ithandwa ngakumbi luninzi lwabathengi.Njengoko imveliso yaseTshayina kunye nenqanaba lobugcisa lingekakwazi ukuhlangabezana neemfuno zemarike, abanye basafuna ukuxhomekeka ekuthengeni ngaphandle.

2, iipropati zefilimu yepolyester

I-PET i-polymer ephezulu, ephuma kwi-dehydration condensation ye-ethylene terephthalate.I-Glycol terephthalate ifunyenwe nge-esterification ye-terephthalic acid kunye ne-glycol.I-PET lubisi olumhlophe okanye olutyheli olukhanyayo, ipholima ekhazimle kakhulu enomgangatho ogudileyo, umenyezelayo.

I-PET ineempawu ezintle kakhulu (ukumelana nobushushu, ukuchasana neekhemikhali).Amandla kunye nokuqina, ukugquma kombane, ukhuseleko, njl.), ngexabiso eliphantsi, elisetyenziswa ngokubanzi njengefiber, ifilimu, iiplastiki zobunjineli, iibhotile zepolyester njalo njalo.

I-PET ineempawu ezibalaseleyo zomzimba kunye noomatshini kuluhlu olubanzi lobushushu, ubushushu bokusebenzisa ixesha elide ukuya kuthi ga kwi-120 ℃, ukugqunyelelwa kombane okugqwesileyo, nokuba kubushushu obuphezulu kunye nobushushu obuphezulu, iimpawu zayo zombane ziselungile, kodwa ukunganyangeki kwe-corona, i-anti-toxic. , ukumelana nemozulu, ukuzinza kokumelana neekhemikhali, ukukhwela, ukuxhathisa ukudinwa, ukuxhathisa ukukhuhlana, ukuzinza kwe-dimensional kuhle kakhulu.Ukufunxwa kwamanzi aphantsi, ukuxhathisa kwii-asidi ezibuthathaka kunye nezinyibilikisi eziphilayo, kodwa kungekhona ubushushu obuxhathisayo ekucwilisweni kwamanzi, kungekhona ukuxhathisa kwe-alkali.

Ngokuqhelekileyo i-PET ayinambala ecacileyo, ifilimu ecwebezelayo (amasuntswana adityanisiweyo ngoku anokongezwa ukuze abe nombala), iimpawu ezigqwesileyo zomatshini, ukuqina okuphezulu, ukuqina kunye nokuqina, ukuxhathisa i-puncture, ukumelana nokukhuhlana, ubushushu obuphezulu kunye nokumelana nobushushu obuphantsi, ukumelana neekhemikhali, ioli. ukuxhathisa, ukuxinana komoya kunye nokugcinwa kwevumba, yenye yezinto ezisetyenziswa ngokuqhelekileyo ezichasene nokungena kwefilimu edibeneyo, kodwa ukuxhathisa kwe-corona akulunganga.