Cov khoom sib txhuam- roj hmab
Roj hmab yog ib qho ntawm cov khoom tseem ceeb hauv kev sib txhuam cov ntaub ntawv. Hauv kev tsim cov ntaub ntawv sib txhuam, muaj ob peb yam khoom siv sib txhuam cov khoom siv, thiab feem ntau siv cov khoom siv roj hmab sib xyaw.
Cov khoom siv kev sib txhuam uas siv cov khoom siv cob raws li cov binder ib leeg yuav muaj qhov tsis xws luag, vim tias cov resin yog nkig thiab tawv, cov khoom ntawm cov khoom yog nkig thiab tawv, qhov cuam tshuam tsis zoo, qhov adhesion rau saum npoo ntawm cov paj ntoo yog tsis zoo, thiab qhov kub thiab txias nyob ze ntawm qhov chaw sib cuag siab heev, yooj yim los tsim cov kab nrib pleb, uas ua rau nto chipping thiab ntog tawm, ceev hnav, luv luv kev pab cuam lub neej, yooj yim los tsim suab nrov, thiab soft thiab elastic roj hmab yog ntxiv rau cov resin, uas tuaj yeem txhim kho thiab kov yeej cov shortcomings saum toj no.
Resin-raws li kev sib txhuam cov khoom yog ib qho nyuaj, thaum cov khoom siv roj hmab yog softer, thiab feem ntau yog siv nyob rau hauv kev ua hauj lwm ib puag ncig uas tsis muaj braking siab thiab kev sib txhuam ceev thiab tsis tshua muaj kev ua hauj lwm kub. Peb cov khoom siv roj hmab yog cov roj hmab ntuj, styrene-butadiene roj hmab thiab nitrile roj hmab.
