Petroleum resin yog ib hom epoxy resin nrog qhov hnyav molecular. Qhov hnyav molecular feem ntau qis dua 2000. Nws muaj cov thermal ductility thiab tuaj yeem yaj cov kuab tshuaj, tshwj xeeb tshaj yog cov roj av-raws li cov kuab tshuaj organic. Nws muaj kev sib raug zoo nrog lwm cov ntaub ntawv cob. Nws muaj qhov zoo ntawm kev puas tsuaj thiab kev laus ua haujlwm. Nws qhov kev ua tau zoo tseem ceeb suav nrog qhov muag muag, xim daj, tsis muaj kuab lom, kua qaub, tus nqi saponification, txheeb ze ntom ntom, thiab lwm yam.
Lub softening point yog tus yam ntxwv tseem ceeb ntawm cov roj av resin, uas txhais tau hais tias nws lub zog, brittleness, thiab viscosity txawv nrog rau daim ntawv thov, thiab qhov yuav tsum tau softening point kuj txawv. Raws li qhov xwm txheej ib txwm muaj, qhov muag muag hauv kev lag luam ntawm cov roj hmab vulcanized yog 70 ° C txog 1000 ° C, thiab qhov muag muag hauv kev lag luam ntawm cov coatings thiab xim yog 100 ° C txog 1200 ° C.
Tsis tas li ntawd, theem ntawm tonal hloov los ntawm ultraviolet lub teeb thiab thermal teebmeem kuj yog ib qho tseem ceeb heev rau kev ua tau zoo. Cov txiaj ntsig acid tuaj yeem siv tsis tsuas yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau cov roj ntsha ntawm cov roj av ntawm cov roj av cia vim nws oxidation.
Qhov sib xyaw ntawm roj av resin yog qhov nyuaj heev. Nrog rau kev lag luam thiab kev txhawb nqa ntawm nws cov kev siv tseem ceeb, muaj ntau thiab ntau hom, uas tuaj yeem faib ua tsib pawg:
Tib neeg lub cev rog, cycloaliphatic epoxy resin, feem ntau npaj los ntawm C5 feem, kuj hu ua C5 epoxy resin;
p-xylene epoxy resin, feem ntau ua los ntawm C9 feem, los yog C9 epoxy resin;
P-xylene-aliphatic hydrocarbon copolymer epoxy resin, tseem hu ua C5/C9 epoxy resin;
Dicyclopentadiene epoxy resin, uas yog tsim los ntawm dicyclopentadiene los yog nws cov tebchaw, kuj hu ua DCPD epoxy resin. Vim hais tias cov epoxy resin no muaj unsaturated aliphatic hydrocarbon pawg, nws tseem hu ua lub nplhaib reflective Oxygen resin.
Hydrocracking petroleum resin, feem ntau C5 los yog C9 epoxy resin yog xim av xim liab mus rau lub teeb daj thiab tuaj yeem ua mis nyuj dawb lossis translucent tom qab hydrocracking.
Petroleum resin feem ntau yog siv rau hauv cov txheej txheem tsim vaj tsev, cov nplaum, cov ntawv luam tawm, cov khoom khaws cia, thiab cov ntaub ntawv hloov kho cov roj hmab vulcanized. Nrog rau kev txhim kho txuas ntxiv ntawm cov cuab yeej siv thev naus laus zis, nws cov kev siv tseem ceeb kuj tseem txhim kho tas li. C5 epoxy resin yog ib pawg nrog kev txhim kho sai ntawm theem no, thiab nws tau siv dav hauv cov txheej txheem vaj tsev, luam ntawv inks, sealing, sib txuas thiab lwm yam lag luam. C9 epoxy resin yog dav siv nyob rau hauv cov xim, vulcanized roj hmab, yas thiab lwm yam lag luam, thiab nws txoj kev loj hlob thiab tsim kev lag luam prospects yog dav heev.
