Phenolico Resin tseem hu ualub kubkelite, tseem hu ua bakelite hmoov. Keeb xeeb ib qho tsis muaj kob (dawb) lossis daj - Cov xim av pob tshab tshuaj, xim daj, xim av, xim av, xiav thiab lwm yam xim, thiab nws yog granular thiab hmoov. Resistant rau cov kua qaub tsis muaj zog thiab tsis muaj zog alkali, nws yuav decompose nyob rau hauv cov ntaub ntawv ntawm cov muaj zog acid thiab corrode thaum muaj zog alkali. Soluble hauv acetone, dej, cawv thiab lwm yam kuab tshuaj organic. Nws yog tau los ntawm kev sib deev ntawm Phenolic Aldico los yog nws cov derivatives. Cov Phenolic Khoom Siv Hluav Taws Xob yog xim daj, pob tshab, reddish vim tias muaj dej dawb, ruaj khov rau dej, qaug zog kua qaub thiab qaug zog alkali. Nws yog lub resin ua los ntawm kev ua polycondens ntawm Phenol thiab Formaldehyde raws li kev catalyst ntau, nruab nrab thiab ntxuav nrog dej. Vim tias qhov kev xaiv ntawm catalyst, nws tuaj yeem faib ua ob hom: thermosetting thiab thermoplastic. Phenolic Resin muaj cov acid ua hauj lwm zoo, cov tshuab hluav taws xob thiab kub ua haujlwm, thiab yog siv kub, nplaim taws retardant cov ntaub ntawv, sib tsoo log tsim thiab lwm yam kev lag luam.
Phenolic Resin hmoov yog ib hom ntawm thermoplastic phenolic phenolic resin tsim los ntawm kev ua polycondens ntawm Phenol thiab Formaldehyde hauv Acidic Nruab Nrab. Nws tuaj yeem yaj nyob hauv ethanol thiab ua thermosetting los ntawm kev ntxiv 6 - 15% urotropine. Nws tuaj yeem yog pwm ntawm 150°C thiab muaj qee yam zog. thiab hluav taws xob rwb thaiv tsev zog.
Lub ntsiab tseem ceeb ntawm phenolic resin yog qhov kub siab tiv, thiab nws tuaj yeem tswj hwm nws cov qauv kev ncaj ncees thiab seem tsis txaus ntseeg txawm tias muaj kub heev. Yog li, cov txheej txheem Phenolic siv tau cov ntaub ntawv kub siab, xws li cov ntaub ntawv kub, txhuam cov ntaub ntawv, cov nplaum thiab cov khoom lag luam.
Ib qho kev thov tseem ceeb ntawm phenolico resin yog ua phau ntawv. Phenolic Resins yog ntau yam thiab tau tshaj tawm ntau yam organic thiab inorganic fillers. Tsim tau tsim cov phenolic resins ntub dej ntub tawm nrawm. Thiab tom qab hla - Txuas, nws tuaj yeem muab cov neeg kho tshuab hluav taws xob muaj zog, cov khoom siv hluav taws xob rau cov ntaub ntawv uas tsis muaj zog, cov khoom siv los ntawm cov khoom siv los thiab kev ua noj.
Dej - Soluble Phenolico Resins lossis dej cawv - Cov khoom siv hluav taws xob, thiab lwm yam khoom siv hluav taws xob, thiab lwm yam khoom siv hluav taws xob, cov ntawv sau hluav taws xob thiab cov ntawv lim rau cov ntxaij lim dej.
Phenolic Resin Protin Protin:
Kev kub siab ua tau zoo: Qhov tseem ceeb tshaj plaws ntawm phenolic Resin yog qhov kub siab ua hauj kub, nws tuaj yeem tswj hwm nws cov qauv kev ncaj ncees thiab seem ruaj khov.
Daim Ntawv Cog Lus: Ib qho kev thov tseem ceeb ntawm Phenolico Resin yog ua phau ntawv. Phenolic Resins yog ntau yam thiab tau tshaj tawm ntau yam organic thiab inorganic fillers.
Cov pa roj carbon nyob ntawm cov roj ntsha los: hauv qab cov roj hauv roj nrog ib qho kub txog 1000°C, Phenolic Resins yuav tsim cov pa roj carbon nyob, uas yog qhov ua kom muaj kev ruaj ntseg los tswj cov qauv txheej txheem phenolic.
Tsawg cov pa taws thiab cov tshuaj lom tsawg: piv nrog lwm cov txheej txheem resin, cov phenolic resin system muaj qhov zoo ntawm cov pa taws tsis tshua muaj pa taws thiab qis toxicity. Nyob rau hauv cov ntaub ntawv ntawm kev sib txuas, lub phenolic resin system tsim los ntawm cov mis scientific uas tsim los ntawm cov tshuaj scientific los tsim cov hydrogen los ua cov hydrogen, dej vapor thiab pa roj oxides. Cov pa luam yeeb tsim tawm thaum lub sij hawm decomposition yog qhov me me, thiab cov tshuaj lom yog qhov tsawg.
Tshuaj lom neeg Kuj: Hla - Txuas Phenolic Resin tuaj yeem tiv taus qhov kev txiav txim siab ntawm cov tshuaj lom neeg. Xws li roj av, roj av, cawv, glycol, roj thiab ntau yam hydrocarbons.
Kev Kho Cua Sov: Kev kho cua sov yuav nce lub khob kev hloov ntsuas kub ntawm lub ntsej muag cured, uas tuaj yeem ua ntxiv txhim kho cov khoom ntawm lub resin.
Ua npuas ncauj: Phenolic ua npuas ncauj yog hom npuas ua npuas dej tau los ntawm foaming phenolic resin. Piv nrog polystyrene ua npuas ncauj, polyvinyl chloride ua npuas ncauj, polyurethane ua npuas ncauj thiab lwm yam ntaub ntawv uas ua rau cov khoom ua tau zoo tshwj xeeb hauv cov nplaim hluav taws xob rov qab.
Lub Sijhawm Post: Apr - 17 - 2023