Methyl 4-chloroacetoacetate

E tukang empa e sa chese, e na le monko o khethehileng oa alkyl phenol.E qhibiliha ka joala, ester, alkane, monko o monate le tse ling tse hlapollang tse kang ethanol, acetone, butyl acetate, peterole, toluene, e qhibilihang ka tharollo e matla ea alkali.Ka litšobotsi tse tloaelehileng tsa lintho tsa phenolic, ha li kopana le leseli, mocheso, ho kopana le moea, 'mala o ile oa teba butle-butle.

Tlhahisong ea indasteri, p-tert-butylphenol e sebelisoa haholo-holo tlhahiso ea oli e qhibilihang ka phenolic resin, enke ea khatiso, lelakabe la mollo, joalo-joalo PTBP e boetse e sebelisoa e le polyvinyl chloride stabilizer, surfactant, le UV absorber.Sebakeng sa lisebelisoa tsa ho kopana le lijo, p-tert-butyl phenol e atisa ho sebelisoa ha ho etsoa li-resin tsa polycarbonate, hape e ka sebelisoa ha ho etsoa li-additives bakeng sa lisebelisoa tsa ho kopana le lijo.

1. Tšireletseho ea PTBP
PTBP ha e na chefo ea lefutso le carcinogenic, 'me chefo e matla ea molomo ea likhoto tse nang le LD50> 2000 mg/kg ke ea chefo e tlase.E na le bohale bo itekanetseng letlalong la mmutla.Palo ea NOAEL ea 60 mg / kg · bw / letsatsi e ile ea hlokomeloa ho likhoto tse ling tse nang le phefumoloho e sa tloaelehang kapa e thata le ho fokotseha ha albumin ea plasma nakong ea ho pheta-pheta molomo oa matsatsi a 42.Ho sa le joalo, PTBP ke ea li- exogenous phenolic estrogens, 'me boleng ba NOAEL ba chefo ea ho ikatisa ea likhoto ke 200 mg/kg·bw/ka letsatsi, ho bontša chefo e itseng ea ho ikatisa.Ka hona, PTBP e na le likotsi tse itseng 'me e lokeloa ke tlhokomelo.

2. Tšebeliso ea PTBP linthong tse amanang le lijo
PTBP ke thepa e tala ea lik'hemik'hale e sa fumaneheng kapa e sieo ka har'a lisebelisoa tsa ho kopana le lijo.E ka sebelisoa e le tlhahiso ea polymer kapa tlatsetso.
Ho li-polymers, li sebelisoa haholo-holo e le "monomer starter" le "end-sealing agent".Ka mohlala, ho li-polymers tse thehiloeng ho koahela, formaldehyde, phenol, p-tert-butylphenol polymers le polymers ea formaldehyde, phenol, p-tert-butylphenol le n-butanol polymers tse nang le p-tert-butylphenol e le monomer le starter.Poly4,4 '-isopropyl diphenyl carbonate polasetiki e tiisitsoeng ka p-tert-butylphenol ka lipolima tsa polasetiki.
E le tlatsetso, e ka sebelisoa ho fokotsa litaba tsa end-hydroxyl ka liaparo le ho ntlafatsa botsitso ba lihlahisoa.Ka polasetiki e ka sebelisoa e le antioxidant, joalo ka lisebelisoa tsa ho ikopanya le lijo tsa polasetiki tsa PS le lihlahisoa, e le ho thibela sehlahisoa tlhahisong kapa ts'ebelisong ea oxidation ea mocheso, lebelo la photooxidation reaction, ho lieha ho senyeha, ts'ebetso ea botsofali e mosehla, le ho lelefatsa ts'ebeletso. bophelo ba sehlahisoa.

P-tert-butylphenol e na le thepa ea antioxidant 'me e ka sebelisoa e le stabilizer bakeng sa rabara, sesepa, hydrocarbons e chlorine le likhoele tsa tšilo ea lijo.Monyetla, chefo e bolaeang likokoanyana, rabara, pente le lintho tse ling tse thibelang ho peperana.Ka mohlala, e sebelisetsoang resin ea polycarbon, tert-butyl phenolic resin, epoxy resin, polyvinyl chloride, styrene stabilizer.Ho phaella moo, e boetse e le thepa e tala ea meriana e lelekang likokoanyana, chefo e bolaeang likokoanyana le acaricide, monko o monate le moemeli oa tšireletso ea limela.E ka boela ea sebelisoa e le ntho e nolofatsang, e qhibilihisang, e kopanyang lidae le lipente, antioxidant ea oli e tlotsang, e hloekisang oli le sehlahisoa sa mafura a koloi.

Lisebelisoa tse ling:
(1) Bakeng sa oli e qhibilihang ka phenolic resin, sehlahisoa le formaldehyde condensation li ka fumanoa ka merero e fapaneng.Ka sekhomaretsi sa chloroprene se tsoakiloeng 10-15% ea sehlahisoa, ho fumana resin e qhibilihang, mofuta ona oa sekhomaretsi o sebelisoa haholo ho lipalangoang, kaho, sechaba, ho etsa lieta, joalo-joalo. khatiso, photogravure e tsoetseng pele joalo-joalo.Ka li-varnish tsa ho kenya letsoho, li ka sebelisoa ka li-coil dip varnish le laminate varnish.
(2) Bakeng sa tlhahiso ea polycarbonate, joalo ka phosgene polycarbonate pheliso ea karabelo, ho eketsa Chemicalbook palo ea 1-3% ea resin.
(3) E sebelisetsoa epoxy resin, phetoho ea resin ea xylene;Joaloka polyvinyl chloride stabilizer, surfactant, UV absorber.
(4) Ka thepa ea antioxidant, e ka sebelisoa e le rabara, sesepa, li-hydrocarbon tse chlorinated le nitrocelluloose stabilizer.Hape ke thepa e tala ea ntho e lelekang likokoanyana (meriana), acaricide acaride (sebolaea-likokoanyana) le se sireletsang limela, monko o monate, resin ea maiketsetso, hape e ka sebelisoa e le ntho e nolofatsang, solvent, dae le tlatsetso ea pente.E ka boela ea sebelisoa e le motsoako oa demulsifier bakeng sa lebala la oli le tlatsetso bakeng sa oli ea koloi.