Tom ntej: Methyl 4-chloroacetoacetate

Flammable tab sis tsis flammable, muaj ib qho tshwj xeeb alkyl phenol tsw.Soluble nyob rau hauv cawv, ester, alkane, aromatic thiab lwm yam organic solvents, xws li ethanol, acetone, butyl acetate, roj av, toluene, soluble nyob rau hauv muaj zog alkali tov.Nrog rau cov yam ntxwv ntawm cov tshuaj phenolic, nyob rau hauv kev sib cuag nrog lub teeb, tshav kub, kev sib cuag nrog huab cua, xim maj mam deepened.

Hauv kev tsim khoom, p-tert-butylphenol feem ntau yog siv los ua cov roj soluble phenolic resin, luam ntawv number case, nplaim hluav taws, thiab lwm yam. PTBP tseem siv los ua polyvinyl chloride stabilizer, surfactant, thiab UV absorber.Hauv kev lag luam ntawm cov khoom noj khoom haus sib cuag, p-tert-butyl phenol feem ntau yog siv rau hauv kev tsim cov polycarbonate resins, thiab tseem tuaj yeem siv rau hauv kev sib txuas ntawm additives rau cov khoom noj khoom haus.

1. Kev ruaj ntseg ntawm PTBP
PTBP tsis muaj genetic toxicity thiab carcinogenic toxicity, thiab mob qhov ncauj toxicity ntawm nas nrog LD50 > 2000 mg / kg belongs rau tsawg toxicity.Nws muaj me ntsis irritation rau ntawm daim tawv nqaij luav.Tus nqi NOAEL ntawm 60 mg / kg·bw / hnub tau pom hauv qee cov nas uas muaj qhov txawv txav lossis ua tsis taus pa nyuaj thiab txo cov ntshav albumin thaum lub sijhawm 42-hnub qhov ncauj rov qab.Meanwhile, PTBP belongs rau exogenous phenolic estrogens, thiab NOAEL tus nqi ntawm nas reproductive toxicity yog 200 mg / kg·bw / hnub, qhia txog tej yam kev ua me nyuam toxicity.Yog li ntawd, PTBP muaj qee yam txaus ntshai thiab tsim nyog tau txais kev saib xyuas.

2. Kev siv PTBP hauv cov khoom noj khoom haus
PTBP yog cov khoom siv tshuaj lom neeg uas tsis muaj lossis tsis muaj nyob hauv cov khoom noj khoom haus.Nws tuaj yeem siv los ua cov khoom siv polymer lossis cov khoom ntxiv.
Hauv cov polymers, lawv tsuas yog siv los ua monomer starter thiab kawg-sealing agent.Piv txwv li, nyob rau hauv txheej raws li polymers, formaldehyde, phenol, p-tert-butylphenol polymers thiab polymers ntawm formaldehyde, phenol, p-tert-butylphenol thiab n-butanol polymers nrog p-tert-butylphenol li monomer thiab pib.Poly4,4'-isopropyl diphenyl carbonate yas ntim nrog p-tert-butylphenol hauv cov yas polymers.
Raws li ib qho ntxiv, nws tuaj yeem siv los txo cov ntsiab lus ntawm qhov kawg-hydroxyl hauv txheej txheej thiab txhim kho kev ruaj ntseg ntawm cov khoom.Hauv cov yas tuaj yeem siv los ua cov tshuaj tiv thaiv kab mob, xws li rau PS yas cov khoom siv tiv tauj thiab cov khoom, txhawm rau tiv thaiv cov khoom hauv kev tsim lossis siv cov thermal oxidation, photooxidation cov tshuaj tiv thaiv ceev, qeeb degradation, daj txheej txheem kev laus, thiab kev pab cuam ntev. lub neej ntawm cov khoom.

P-tert-butylphenol muaj cov khoom siv antioxidant thiab tuaj yeem siv los ua kom ruaj khov rau roj hmab, xab npum, chlorinated hydrocarbons thiab digestive fibers.UV absorbent, tshuaj tua kab, roj hmab, xim thiab lwm yam tshuaj tiv thaiv tawg.Piv txwv li, siv rau polycarbon resin, tert-butyl phenolic resin, epoxy resin, polyvinyl chloride, styrene stabilizer.Tsis tas li ntawd, nws tseem yog cov khoom siv raw ntawm cov tshuaj tua kab, tshuaj tua kab thiab acaricide, tshuaj tsw qab thiab cov nroj tsuag tiv thaiv tus neeg sawv cev.Nws kuj tseem siv tau ua softener, hnyav, additive ntawm dyes thiab xim, antioxidant ntawm lubricating roj, roj demulsifier thiab additive ntawm tsheb roj.

Lwm yam kev siv:
(1) Rau cov roj soluble phenolic resin, cov khoom thiab formaldehyde condensation tuaj yeem tau txais rau ntau lub hom phiaj.Nyob rau hauv chloroprene nplaum sib tov 10-15% ntawm cov khoom, kom tau soluble resin, hom nplaum no tsuas yog siv rau hauv kev thauj mus los, kev tsim kho, pej xeem, khau-ua, thiab lwm yam hauv kev luam ntawv number case, tuaj yeem siv rau kev hloov kho rosin, offset. printing, advanced photogravure thiab hais txog.Nyob rau hauv lub rwb thaiv tsev varnish, yuav siv tau nyob rau hauv coil dip varnish thiab laminate varnish.
(2) Rau polycarbonate ntau lawm, raws li phosgene polycarbonate cov tshuaj tiv thaiv txiav tawm tus neeg sawv cev, ntxiv cov tshuaj 1-3% ntawm cov resin.
(3) Siv rau epoxy resin, xylene resin hloov kho;Raws li polyvinyl chloride stabilizer, surfactant, UV absorber.
(4) Nrog rau cov khoom antioxidant, tuaj yeem siv los ua roj hmab, xab npum, chlorinated hydrocarbons thiab nitrocelluloose stabilizer.Nws tseem yog cov khoom siv raw ntawm cov tshuaj tua kab (tshuaj), acaricide acaride (tshuaj tua kab) thiab cov nroj tsuag tiv thaiv, tshuaj tsw qab, hluavtaws cob, thiab tseem tuaj yeem siv ua softener, hnyav, dye thiab xim additive.Nws kuj tseem siv tau los ua cov khoom xyaw ntawm demulsifier rau roj teb thiab ntxiv rau cov roj tsheb.