Qhov kub npaum li cas tuaj yeem ua rau lub hnab sab hauv thiab sab nraud ntawm FIBC tuaj yeem tiv taus
Thawv hnab raw khoom
Lub hnab ntim khoom yog ua los ntawm polypropylene thiab polyethylene resin raws li cov khoom siv raw, qhov ntim ntau dua yog tsawg dua 3m³, thiab cov khoom siv thauj khoom nyab xeeb yog tsawg dua lossis sib npaug li 3 tons ntawm cov thawv ntim khoom yooj yim.
Polypropylene
Melting point yog 165 ℃, softening ncig 155 ℃;
Kev khiav hauj lwm kub yog -30 ° C ~ 140 ° C.
Nws tiv taus corrosion los ntawm acids, alkalis, ntsev tov thiab ntau yam organic solvents hauv qab 80 ° C, thiab tuaj yeem decomposed nyob rau hauv kub thiab oxidation.
Polyethylene
Melting point 85 ℃ to 110 ℃, nrog zoo heev kub tsis kam;
Qhov ntsuas kub qis tshaj plaws tuaj yeem ncav cuag -100 ° C txog -70 ° C, nrog cov tshuaj lom neeg ruaj khov thiab ua haujlwm rau feem ntau cov kua qaub thiab alkalis (tsis tiv taus acids nrog oxidizing zog)
Qhov kub ntawm FIBC yog dab tsi?
Dab tsi yog qhov ntsuas kub ntawm FIBCs ua los ntawm polypropylene thiab polyethylene?
Raws li lub teb chaws tus qauv GB / T 10454-2000, qhov ntsuas kub ntawm FIBC yog -35 ℃.
Muab lub hnab ntim rau hauv qhov ntsuas kub ntawm -35 ° C rau ntau tshaj 2 teev, tom qab ntawd tshem tawm cov khoom kuaj thiab quav hauv ib nrab mus rau 180 degrees, thiab xyuas seb puas muaj kev puas tsuaj, tawg thiab lwm yam txawv txav ntawm cov khoom siv hauv paus.
Qhov ntsuas kub ntawm qhov ntsuas kub yog 80 ° C.
Ib qho kev thauj khoom ntawm 9.8 N tau siv rau cov khoom kuaj thiab muab tso rau hauv qhov cub ntawm 80 ° C rau 1 teev. Tom qab muab nws tawm, ob daim ntawv sib tshooj sib tshooj tau sib cais tam sim ntawd, thiab qhov chaw tau kuaj xyuas qhov adhesion, tawg thiab lwm yam tsis zoo.
Raws li tus qauv xeem, lub thawv ntim tuaj yeem siv rau hauv ib puag ncig ntawm -35 ℃ to 80 ℃, tab sis nws tsis pom zoo kom siv nws nyob rau hauv qhov kub thiab txias ib puag ncig rau lub sijhawm ntev.
Nrog rau txoj kev loj hlob ntawm FIBCs, qee lub tsev lag luam xav tau cov hnab ntim khoom kub-tiv taus. Lub hnab siv bituminous tshaj plaws yog lub hnab bitumen; Qhov kub ntawm bitumen ntau lawm yog siab tshaj 130 degrees, thiab lub ntim kub yuav tsum nyob ib ncig ntawm 110 degrees. Peb lub tuam txhab tuaj yeem muab cov txheej txheem kub kub resistant rau cov neeg siv khoom xav tau.
