izindaba

Njengezinto ezihlanganisiwe,i-polyendur resen resenIsetshenziswe kahle ku-Coatings, i-fiber fiber aqinisiwe amapulasitiki, itshe lokufakelwa, ama-handicraft, nezinye izinkambu. Kodwa-ke, umbala ophuzi wama-remins angalawulwa ubelokhu uyinkinga yabakhiqizi. Ngokusho kochwepheshe, izimbangela ezijwayelekile zokuphuzi kwama-resins ezingalawulwa zifaka okulandelayo:

1. Ngesikhathi senqubo yokuhlolisisa kwe-resin engalawulwa, ngenxa yokuguga kokuguga okubangelwa ukushisa okuphezulu, izinga lokushisa elijwayelekile le-resin elingafakwanga lingu-180 ~ 220 ° noma liphezulu, kulokhu kushisa i-resin kulula ukujika okuphuzi ekugugeni okushisayo, okuthinta ukubukeka kwemikhiqizo ye-resin.

2. Okuphuzi okubangelwa ukuvezwa kwe-resin kuma-resin ama-ultraviolet ikakhulukazi kubangelwa ukuba khona kwezindandatho ze-benzene ku-resin (kufaka phakathi amacingo e-any dibasic kanye ne-benzene kanye ne-oxidation ye-apomatic) amakhompiyutha emazingeni okushisa aphezulu. Ukuwohloka, kuthambekele ekuguqukeni ngogesi, okwenza i-resin iphuzi.

3. Esezinhlelweni zokukhiqizwa kwe-resin, izinto ezingavuthiwe zivezwa ku-oksijini ngenxa yokusebenza kokubekwa uphawu okumpofu kwensiza. Uchungechunge lwama-molecular lwe-polyerter olungapheli olungafakwanga luqukethe amaqembu e-Ester kuphela, amaqembu ama-meridian, namaqembu angelope, kodwa namasongo aphindwe kabili nezindandatho ezinephunga. Ithola ukuwohloka kwe-oxidative oxidative, kanye nokusebenza okusobala ukuthi umbala we-resin uphenduka ophuzi.

I-4. Ithonya lezithasiselo ezinjenge-antioxidants, ama-polymerization inhibitors, ama-ejenti okulapha, njll. Antioxidants antioxidants aguqulwa kalula abe ama-nitroxide wamahhala wokufaka imikhiqizo. I-polymerization evame ukusetshenziswa kwe-polymerization, efana ne-hydroquinone, yi-oxidation kuma-quones phambi kwama-quonones, anemibala ngokwawo, ngaleyo ndlela athinta umbala we-resin. Abanye abakhiqizi bama-ejenti okulapha basasebenzisa ama-acyl peroxide-tertive anine System nama-Ketone Peroxide Metal Soap Systems. Umbala, u-resin olula we-resin.

Vele, kunezinye izizathu ezidala ukuthi i-resin iphenduke iphuzi. Ngokuvamile, umoya-mpilo we-thermal kanye nemisebe ye-ultraviolet yizizathu eziyinhloko zokuphuzi. I-Dibasic Acid (noma i-ABYDREDREDRE EQINISEKILEYO) isetshenziswa esikhundleni se-aromatic dibasic acid (noma i-anhydride), yize ingasetshenziswa ngezinga elithile, umbala we-resin ungenziwa lula, kepha ucubungule izici ezahlukahlukene njengokusebenza kwe-resin futhi Izindleko, le ndlela ayilungile.

Ngokusho kochwepheshe, ngaphezu kokugcwalisa igesi ye-inert ekukhiqizweni nasekuhlelweni kwenqubo yokugcina i-oxygen ngangokunokwenzeka, indlela ephumelelayo yokufaka ama-antioxidants kanye ne-ultraviolet inforber, engavimba ngempumelelo ukuphuzi kwe-polyerter egcizelelwe. Izisombululo ezivinjelwe ze-Anti-Yephutsakile ezinconyiwe zama-resins angalawulwa yilezi:

Ama-antioxidants athi aqukethe ama-antine akhethiwe, futhi ama-antioxidants asemqoka futhi ashubile asetshenziswa ngokuhlanganiswa. Ama-antioxidants aphambili ngokuvamile avinjelwe ama-phenols, angabamba ama-proxide amahhala ama-radicals; Ama-antioxidants asizayo angamaPhosfu, okuyilo ngenkathi ebolile i-hydroperoxide, futhi angakwazi ukubheka i-ion yensimbi ukuvikela i-resin kusuka ku-oxidative discoloration. Uma ufuna ukuthuthukisa ukumelana nomoya ophuzi kanye nokumelana nesimo sezulu, kunconywa ukwengeza i-UV Absorber. Ukungeza i-UV Absorber kungavimbela ngempumelelo into ephuzi ye-polymer ezintweni ezisetshenziswayo ze-polymer ngaphansi kwesenzo se-ultraviolet rays, futhi inikeze ukuvikela okuhle kumkhiqizo, ukuvimbela ngempumelelo ukuncishiswa kwe gloss, isizukulwane sama-bubble, kungathuthukisa kakhulu ukumelana kwesimo sezulu womkhiqizo, futhi unomphumela omuhle wokuvumelanisa lapho usetshenziswa kanye nama-antioxidants. Vele, ukusetshenziswa kwama-antioxidants kanye nama-UV angenandaba akwazi ukukuxazulula ngokuyisisekelo inkinga yokuphuzi, kepha ngaphakathi kwebanga elithile, kungavimba ngempumelelo iphuzi eliphuzi lemikhiqizo engelona iqiniso, futhi ugcine umkhiqizo we-watercolor osobala, futhi uthuthukise ikhwalithi yomkhiqizo. ibanga.

-Kwethuama-polyester angenasisekelo e-polyesterzitholakala kumamodeli ahlukahlukene, kanye nama-resins angephuzi, ngokulandelayo:

Siphinde sikhiqizeI-Fiberglass eqondile eqondile,Ama-fiberglass mat, I-fiberglass mesh, na-I-fiberglass elukiwe roving.

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