Iindaba-Ungayisombulula njani ingxaki ye-tyhest ye-resin engalunganga

Njengezinto ezihlanganisiweyo,I-polyester engadibaniyoisetyenziswe kakuhle kwi-cayishini, i-fiber fiber ye-fiber eqinileyo, ilitye lokufakelwa, izakhiwo, kunye nezinye iinkalo. Nangona kunjalo, umbala otyheli wee-resit ezingenazo usoloko uyingxaki yabavelisi. Ngokutsho kweengcali, oonobangela obuqhelekileyo bokutyheli be-resins abangathathi ntweni babandakanya oku kulandelayo:

I-1. Ngexesha lenkqubo ye-synthesis ye-resin engalunganga, ngenxa yokugungxula okukhohlakeleyo okubangelwa bubushushu obuphezulu, ubushushu obuphezulu be-windows engacwangciswanga yi-180 ~ 40 ° okanye ngaphezulu kwe-resin kulula ukujika Ukuphangwa kwe-thermal, kuchaphazela imbonakalo yeemveliso ze-resin.

I-2. Ukutyholoza okubangelwa kukuvezwa kwe-resin kwi-istraviolet ibengelwa bubukho bamakhonkco e-acids / i-anidrides kunye ne-anznerrides kunye ne-anzedrided rids engeniswe yi-thematic Imida kubushushu obuphezulu. Ukonakaliswa, kukwenza ukuthunyelwa kwe-elektroniki, ukwenza i-resin tyheli.

I-3. Kwinkqubo yemveliso ye-resin, izixhobo eziluhlaza zivezwa kwioksijini ngenxa yokusebenza kakubi kwesixhobo. I-molecular thein ye-polyester jikelele engabhaliswanga ayinawo nje amaqela e-mester, amaqela aseMeridia, kunye namaqela e-antelope, kodwa amakhonkco aphindwe kabini. Ingaphantsi konakalise i-Oxidal ye-thermal, kunye nokusebenza ngokucacileyo kukuba umbala we-resin ujika ityheli.

4. Impembelelo yeongezelelo ezinje ngee-antioxidants, ii-polymerizarazazazazazation, iarhente yokunyanga, njl njl. I-polymerization ye-polymerization, efana ne-hydroquinone, i-oxidation ibe kwiQunenes phambi kweQuinenes, bona banombala, ngaloo ndlela bechaphazela umbala we-resin. Abanye abavelisi beearhente zokunyanga zisasebenzisa iinkqubo ze-Amine ze-Amine ze-Amine ze-Amine ze-Amine kunye neKeto Peroxside yeSop Syssop. I-resin enombala, elula elula.

Ewe kunjalo, kukho ezinye izizathu zokubangela i-resin ijike ityheli. Ngokubanzi, ioksijini ye-thermal kunye nee-ultraviolet zezona zizathu ziphambili zokungatyheli. I-Dibirad Dibasic acid (okanye i-acid anhydride) isetyenziswa endaweni ye-auramasic dibasic acid (okanye i-acid anhydride), nangona inokuthi isetyenziswe kwinqanaba elithile, kodwa ithathele ingqalelo izinto ezahlukeneyo ezifana nokusebenza kwe-resin kunye Ixabiso, le ndlela ayilunganga.

Ngokutsho kweengcali, ukongeza ekugcwaliseni igesi kwimveliso kunye nenkqubo yokugcina ukuthintela ukunxibelelana neoksijini kangangoko kunokwenzeka, indlela esebenzayo i-absiovioler, enokuthintela ngokufanelekileyo i-tyheader ye-polyerter. Ingcali-iqinisekisiwe izisombululo ezichasene ne-anti-tyhesi ye-resins engacwangciswanga yile:

I-Antioiyoxididants engabeki imilambo ikhethiwe, kwaye i-antioisoction kunye ne-antioring aneinguants zisetyenziswa ngokudibeneyo. Iiprintants eziphambili ze-antiotioxididants zihlala zithintelwe ii-phenols, ezinokuthi zibambe i-radicals yasimahla; I-antioxidants encedisayo yi-phosphis, ezaziphosa i-hydroperoperoxide, inokuthintela ii-ion zentsimbi ukuthintela i-resin yokwahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulahlulo. Ukuba ufuna ukuqhubela phambili ukuphucula ukungavisisani kwemozulu kunye nokuchaswa kwemozulu, kuyacetyiswa ukongeza i-absurber. Ukongeza i-absurber ye-UV inokuthintela i-tyhenomen yezinto ezityhethekileyo phantsi kwesenzo se-Ultraviolet, kwaye sikhulise ngokufanelekileyo imveliso, isizukulwana esingeyonyani, kwaye ukuqondisa, kunye nokulibazisa kunokuphucula kakhulu ukumelana kwemozulu yemveliso, kwaye inesiphumo esihle sokusetyenziswa kunye ne-antioxidants. Ewe kunjalo, ukusetyenziswa kwee-antioxididants kunye ne-absisobers ayinakukwazi ukusombulula ingxaki ye-tyheli, kodwa kuluhlu oluthile, inokuthintela ngokufanelekileyo i-oxiding yeemveliso ze-polyster, gcina imveliso yemveliso ye-polyester, kwaye iphucule umgangatho wemveliso. Ibakala.

BethuI-Polloester engadibaniyoziyafumaneka kwiimodeli ezahlukeneyo, kunye neentsuku ezingezizo zetyheli, ngolu hlobo lulandelayo: