Txheej txheem cej luam ntawm cov yam ntxwv thiab qhov zoo thiab qhov tsis zoo ntawm ntau yam khoom siv roj hmab:
1, Ntuj roj hmab
Cov yam ntxwv: Nws muaj qee yam plasticity ntawm chav tsev kub, maj mam hardens thaum kub txo, muaj elasticity zoo, zoo huab cua nruj, thiab muaj zog nqus dej.
Qhov zoo: Zoo elasticity, airtightness, thiab alkali tsis kam.
Disadvantages: Tsis resistant rau kev laus, tsis zoo ua hauj lwm rau roj thiab tsis-polar kuab tshuaj.
2, Styrene butadiene roj hmab
Yam ntxwv: Siab solubility parameter, soluble nyob rau hauv feem ntau hydrocarbon solvents, qeeb vulcanization tus nqi, superior hnav tsis kam, tshav kub tsis kam, thiab laus kuj.
Qhov zoo: Kev ua haujlwm zoo, hnav tsis kam, kub ua haujlwm, thiab kev laus ua haujlwm.
Disadvantages: Tsawg zog, tsis zoo adhesion, ceev nrooj propagation ceev.
3, Butadiene roj hmab
Cov yam ntxwv: siab elasticity, tswj elasticity nyob rau hauv ib tug dav kub ntau yam, zoo heev hnav tsis kam, thiab zoo filling zog.
Qhov zoo: siab elasticity, hnav tsis kam, thiab kev ua haujlwm zoo.
Disadvantages: Tsawg tensile lub zog thiab lub zog tsim kua muag, tsis zoo ntub plam tsis kam.
4, Isoprene roj hmab
Yam ntxwv: Uniform zoo, siab purity, luv molding lub sij hawm, zoo fluidity.
Qhov zoo: Kev ua haujlwm yooj yim, lub teeb xim, me me expansion thiab contraction.
Qhov tsis zoo: Tsawg tensile lub zog thiab qee qhov ntsuas lub zog qis dua li cov roj hmab ntuj.
5, Ethylene propylene roj hmab
Cov yam ntxwv: Cov tshuaj lom neeg muaj zog heev, kev laus ua haujlwm zoo, ua haujlwm kub zoo, thiab hluav taws xob zoo heev.
Qhov zoo: kev laus tsis kam, ozone tsis kam, kub tsis kam, thiab hluav taws xob rwb thaiv tsev zoo.
Disadvantages: Tsis zoo tus kheej adhesion thiab kev sib nrig sib adhesion, tsis muaj roj thiab hnyav tsis kam.
6, chloroprene roj hmab
Cov yam ntxwv: siab tensile lub zog, zoo heev aging kuj, zoo nplaim kuj, roj kuj, thiab hnyav kuj.
Qhov zoo: kev laus ua haujlwm, nplaim taws ua haujlwm, roj tsis kam, thiab huab cua zoo nruj.
Disadvantages: Tsis zoo hluav taws xob rwb thaiv tsev, tsis zoo txias tsis kam, thiab tsis zoo cia stability.
7, Nitrile roj hmab
Cov yam ntxwv: Polarity, zoo heev tiv thaiv tsis-polar thiab tsis muaj zog polar roj thiab cov kuab tshuaj, zoo hnav tsis kam.
Qhov zoo: Cov roj ua haujlwm zoo, hnav tsis kam, thiab kev laus ua haujlwm.
Disadvantages: Tsis zoo txias tsis kam thiab tsis zoo hluav taws xob rwb thaiv tsev kev ua tau zoo.
8, Butyl roj hmab
Cov yam ntxwv: zoo airtightness, zoo tshav kub thiab oxidation tsis kam, thiab zoo heev hluav taws xob rwb thaiv tsev kev ua tau zoo.
Qhov zoo: zoo airtightness, kub tsis kam, oxidation tsis kam, thiab hluav taws xob rwb thaiv tsev.
Disadvantages: Slow vulcanization ceev, tsis zoo tus kheej adhesion thiab kev sib nrig sib adhesion.
9, Silicone roj hmab
Cov yam ntxwv: Kub thiab tsis kub tsis kam, hluav taws xob rwb thaiv tsev, huab cua tsis zoo, zoo heev physiological inertia.
Qhov zoo: siab thiab tsis kub tsis kam, hluav taws xob rwb thaiv tsev, huab cua tsis zoo.
Disadvantage: Tsis resistant rau roj.
10, Fluororubber
Cov yam ntxwv: zoo corrosion kuj, zoo high-temperature chav ua hauj, thiab tsis muaj roj permeability.
Qhov zoo: zoo corrosion kuj, kub tsis kam, thiab nqus tsev vacuum.
Disadvantages: Tsis zoo elasticity, tsis zoo txias tsis kam, thiab tsis zoo hluav taws xob kev ua tau zoo.