Thaum lub sijhawm ua, cia thiab siv cov roj hmab lossis cov khoom roj hmab, qhov kev ua haujlwm yuav maj mam txo vim yog kev sib xyaw ntawm sab hauv thiab sab nraud (xws li cov cua sov, cov pa oxygen, cov hluav taws xob, ionizing radiation, lub teeb, mechanical force, thiab lwm yam) Qhov kawg ntawm kev siv tus nqi, muaj tshwm sim hu ua rubber kev laus.
Roj hmab muaj hnub nyoog txawv tshwm sim, piv txwv: Kev noj qab nyob zoo thiab kev mus sij hawm ntev yuav tawv, txhav los sis nplaum; cov khoom siv roj hmab (xws li raincoats, nag ntaub, thiab lwm yam) tom qab lub hnub thiab nag yuav hloov xim, nkig thiab txawm tawg; Sab nraum zoov hluav taws xob ntawm cov xov hlau, cables, vim lub luag hauj lwm ntawm qhov chaw yuav tawv, tawg, thiab txawm raug rau rwb thaiv tsev; muab cia rau hauv lub tsev qiv ntawv lossis lwm cov khoom yuav tawg; nyob rau hauv qhov kev kuaj dej yuav tsum tawv tawv los yog nplaum. Tsis tas li ntawd, qee yam khoom yuav raug ntim tawm los sis ua rau pwm tsis zoo ... Txhua yam no yog cov roj hmab hnyav.
Cov roj hmab laus thiab hlau xeb, tib neeg xav laus li natural, peb tsuas siv tau cov cai ntawm kev laus kom ncua kev laus ntawm roj hmab, tab sis tsis tuaj yeem tiv thaiv tau. Cov kev tiv thaiv ntau yog:
Kev tiv thaiv ntawm lub cev: sim kom tsis txhob muaj kev cuam tshuam ntawm roj hmab thiab kev laus. Xws li: cov paib hauv cov roj hmab, roj hmab sib tov, electroplating, txheej thiab lwm yam.
Kev tiv thaiv tshuaj: tshuaj lom neeg cov tshuaj tiv thaiv qeeb dua cov roj hmab kev hnyav. Xws li: ntxiv tshuaj antioxidant.