paraffin
Synonyms in English
paraffin
chemical khoom
CAS: 8002-74-2 EINECS: 232-315-6 Density: 0.9 g/cm³ txheeb ze ntom ntom: 0.88 ~ 0.915
Khoom taw qhia thiab nta
Paraffin wax, tseem hu ua crystal wax, yog ib hom soluble nyob rau hauv roj av, carbon disulfide, xylene, ether, benzene, chloroform, carbon tetrachloride, naphtha thiab lwm yam uas tsis yog-polar solvents, insoluble nyob rau hauv dej thiab methanol thiab lwm yam polar solvents.
siv
Crude paraffin feem ntau yog siv hauv kev tsim cov khoom sib tw, fiberboard thiab canvas vim nws cov ntsiab lus roj siab.Tom qab ntxiv POLYOLEFIN ADDITIVE PARAFFIN, nws cov ntsiab lus melting nce, nws qhov adhesion thiab yoog raws nce, thiab nws yog dav siv hauv kev tsim cov ntawv ntub dej thiab dej tsis muaj ntaub qhwv, duab los qhia, txheej txheej ntawm qee cov ntaub ntawv thiab tswm ciab.
Daim ntawv immersed nyob rau hauv paraffin wax tuaj yeem npaj nrog cov dej tsis zoo ntawm ntau cov ntaub ntawv siv quav ciab, tuaj yeem siv rau hauv cov khoom noj, tshuaj thiab lwm yam ntim, hlau xeb thiab luam ntawv kev lag luam;Thaum paraffin ntxiv rau paj rwb, nws tuaj yeem ua rau cov ntaub ntawv mos, du thiab elastic.Paraffin kuj tuaj yeem ua tshuaj ntxuav tes, emulsifier, dispersant, plasticizer, roj, thiab lwm yam.
Cov khoom ua kom zoo nkauj thiab cov khoom siv semi-refined paraffin yog dav siv, feem ntau yog cov khoom siv thiab ntim cov khoom noj, tshuaj hauv qhov ncauj thiab qee yam khoom lag luam (xws li ntawv siv quav ciab, crayons, tswm ciab thiab cov ntawv carbon), xws li cov ntaub ntawv hnav khaub ncaws rau cov thawv ci, rau kev khaws cov txiv hmab txiv ntoo. [3], rau kev rwb thaiv tsev ntawm cov khoom siv hluav taws xob, thiab kev txhim kho kev tiv thaiv kev laus thiab kev yooj yim ntawm cov roj hmab [4].Nws tseem tuaj yeem siv rau oxidation los tsim cov roj ntsha hluavtaws.
Raws li ib yam ntawm cov khoom siv hluav taws xob latent thaum tshav kub kub, paraffin muaj qhov zoo ntawm qhov loj latent tshav kub ntawm theem hloov, hloov pauv me me thaum lub sij hawm ua kua theem hloov, zoo thermal stability, tsis muaj undercooling tshwm sim, tsis tshua muaj nqi thiab hais txog.Tsis tas li ntawd, kev txhim kho aviation, aerospace, microelectronics thiab optoelectronics thev naus laus zis feem ntau xav kom muaj ntau cov hluav taws xob dissipated thaum lub sijhawm ua haujlwm ntawm cov khoom siv hluav taws xob muaj zog tuaj yeem tsuas yog dissipated nyob rau hauv ib qho chaw tshav kub dissipation thiab lub sij hawm luv luv, thaum qis. melting point theem hloov cov ntaub ntawv tuaj yeem ncav cuag lub melting point piv nrog siab melting point theem hloov cov ntaub ntawv, thiab ua kom tag nrho siv cov latent cua sov kom ua tiav qhov kub thiab txias.Lub sij hawm luv luv thermal teb ntawm paraffin tau dav siv nyob rau hauv ntau yam xws li aviation, aerospace, microelectronics thiab lwm yam high-tech systems raws li zoo raws li vaj tse zog txuag.[5]
GB 2760-96 tso cai rau siv cov pos hniav qab zib tus neeg sawv cev, qhov txwv yog 50.0g / kg.Txawv teb chaws kuj siv rau cov ntawv nplaum nplaum, qhov ntau npaum li 6g / kg.Tsis tas li ntawd, nws kuj tau siv dav hauv cov khoom ntim khoom noj, xws li dej-pov thawj, anti-sticking thiab roj-pov thawj.Nws yog tsim rau cov khoom noj zom cov pos hniav, bubblegum thiab cov tshuaj zoo kub roj thiab lwm yam khoom siv nrog rau cov khoom siv hluav taws xob, demolding, ntsiav tshuaj nias, polishing thiab lwm yam wax ncaj qha rau hauv kev sib cuag nrog cov zaub mov thiab tshuaj (ua los ntawm cov khoom siv roj av los yog cov roj shale los ntawm txias nias thiab lwm txoj kev).
pob thiab thauj
B. Cov khoom no tuaj yeem siv tau, 25KG, 200KG, 1000KGBAERRLS.
C. Khaws ntim rau hauv qhov chaw txias, qhuav thiab qhov cua nyob hauv tsev.Cov thawv ntim khoom yuav tsum tau muab kaw kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum raug kaw kom zoo thaum lub sijhawm thauj mus los kom tsis txhob ya raws, muaj zog alkali thiab acid, nag thiab lwm yam impurities los ntawm kev sib xyaw.
