Khoom Description
Trihydroxymethyl propane (TMP luv luv), dawb flaky crystals.Nws yog soluble nyob rau hauv dej, tsawg-carbon cawv, glycerol, N, N-dimethylformamide, ib nrab soluble nyob rau hauv acetone, ethyl acetate, thiab me ntsis soluble nyob rau hauv carbon tetrachloride, ether thiab chloroform. Nws yog tsuas yog siv nyob rau hauv alkyd resins, polyurethane, unsaturated resins, polyester resins, coatings thiab lwm yam teb. Nws tseem tuaj yeem siv rau hauv kev sib txuas ntawm aviation lubricants, luam ntawv inks, thiab lwm yam, thiab tuaj yeem siv los ua thermal stabilizer rau textile additives thiab polyvinyl chloride resins.
Lub cev thiab tshuaj muaj zog
Khoom: Dawb flaky crystal. Ceev: 1.116g/ml Melting point: 56-60 degree Kub taw tes: 295.7 degree (760 mmHg) Flash point: 172 degree Solubility: Soluble nyob rau hauv dej, low-carbon cawv, glycerol, N, N-dimethylformamide, ib nrab soluble hauv acetone, ethyl acetate, me ntsis soluble hauv carbon tetrachloride, ether thiab chloroform, insoluble nyob rau hauv aliphatic hydrocarbons, aromatic hydrocarbons thiab chlorinated hydrocarbons.Nws hygroscopicity yog hais txog 50% ntawm glycerin.
Lub hom phiaj tseem ceeb
Trihydroxymethyl propane yog ib qho tseem ceeb ntawm cov khoom lag luam zoo, thiab nws yog cov khoom siv dav siv hauv kev lag luam cob. Nws tuaj yeem cuam tshuam nrog cov organic acids los tsim cov monoesters lossis polyesters, hnov mob nrog aldehydes thiab ketones los ua acetals thiab ketones, thiab hnov mob nrog diisocyanates los ua carbamates. Cov khoom siv feem ntau yog siv rau hauv alkyd resins, polyurethane, unsaturated resins, polyester resins, coatings thiab lwm yam teb, kuj yuav siv tau nyob rau hauv lub synthesis ntawm aviation lubricants, plasticizers, surfactants, wetting agents, explosives, printing inks, thiab lwm yam. siv los ua textile additives thiab thermal stabilizers rau polyvinyl chloride resins.
Lub luag haujlwm hauv polyurethane synthesis
1.Txhim kho qhov kev ua haujlwm ntawm cov reactants
Trihydroxymethyl propane muaj ib tug loj tus naj npawb ntawm active hydroxyl pawg. Thaum lub sij hawm synthesis ntawm polyurethane, nws tuaj yeem condense nrog reactants xws li polyether polyols los tsim cov tshuaj tiv thaiv redox, thiab cov tshuaj tiv thaiv polymerization tshwm sim sai thiab maj mam nyob rau hauv qhov kev txiav txim ntawm cov kuab tshuaj, uas txhim kho cov reactivity ntawm reactants.
2. Txhim kho cov khoom siv ntawm cov khoom siv polyurethane
Txij li thaum trihydroxymethyl propane muaj ntau pawg hydroxyl, nws tuaj yeem condense nrog isocyanates hauv polyether polyols, yog li txhim kho cov khoom siv ntawm polyurethane xws li elasticity thiab rigidity los ntawm nucleophilic hloov cov tshuaj tiv thaiv.
3. Txhim kho huab cua tsis kam ntawm cov ntaub ntawv polyurethane
Cov pab pawg hydroxyl hauv trihydroxymethyl propane tuaj yeem hnov mob nrog cov isocyanate tshuav ntawm cov saw hlau polyurethane los tsim cov qauv sib txuas, yog li txhim kho huab cua tsis kam ntawm cov khoom siv polyurethane thiab ua rau nws lub neej kev pab cuam.
Kev khaws cia thiab kev thauj mus los yam ntxwv
1.Kev ceev faj rau kev ua haujlwm.Airtight ua haujlwm, ntxiv dag zog rau qhov cua.Operators yuav tsum tau txais kev cob qhia tshwj xeeb thiab ua raws li cov txheej txheem kev khiav hauj lwm.Nws raug pom zoo tias cov neeg ua haujlwm hnav tus kheej-priming lim plua plav npog qhov ncauj qhov ntswg. Khaws kom deb ntawm qhov hluav taws kub thiab qhov chaw kub, thiab kev haus luam yeeb yog nruj me ntsis txwv. Nyob rau hauv qhov chaw ua haujlwm.Siv lub tshuab ua pa tawg thiab cov khoom siv hluav taws xob, tsis txhob sib cuag nrog oxidants thiab acids.Load thiab unload maj mam thaum tuav kom tsis txhob muaj kev puas tsuaj rau lub ntim.Tshwj xeeb nrog ntau yam thiab ntau ntawm cov khoom siv tua hluav taws thiab cov khoom siv kho mob thaum muaj xwm txheej tshwm sim. Cov thawv ntim khoom tuaj yeem muaj cov khoom tsis zoo.
2. Kev ceev faj cia.Kho rau hauv qhov chaw txias thiab qhov cua txias. Ceev kom deb ntawm qhov hluav taws kub thiab cua sov.Nws yuav tsum muab cais tawm ntawm cov oxidants thiab acids, thiab yuav tsum tsis txhob muab sib xyaw.Tau nrog ntau yam sib xws thiab ntau ntawm cov khoom siv tua hluav taws.Qhov cia thaj chaw yuav tsum tau nruab nrog cov ntaub ntawv tsim nyog kom muaj cov xau.
Lub ntim khoom yuav tsum ua kom tiav thaum lub sijhawm xa khoom tuaj thiab qhov chaw thau khoom yuav tsum muaj kev nyab xeeb.Thaum thauj khoom, xyuas kom lub thawv tsis xau, tawg, poob, lossis puas.
Nws yog nruj me ntsis txwv tsis pub sib tov thiab thauj nrog oxidants, acids, thiab lwm yam. Thaum lub sij hawm kev thauj mus los, nws yuav tsum tau tiv thaiv los ntawm raug, los nag, thiab kub.
Pobua aghauv thiab ruaj khov
1.Cov txheej txheem ntim khoom yog 30kg yas nruas.Tam sim no, txhawm rau txhawm rau kev thauj mus los, ntau yam kev ntim khoom tuaj yeem muab tau raws li cov neeg siv khoom xav tau.Thov ua raws li cov cai hauv zos thaum lub sijhawm thauj mus los.Cov tshuaj tiv thaiv kab mob yog cov khoom tsis muaj kev phom sij, tab sis thov tsis txhob sib xyaw nrog cov khoom noj thiab cov khoom noj ntxiv hauv kev thauj mus los.
2. Khaws rau hauv qhov chaw txias, qhuav thiab tsis tau qhib.Tsheb lub sijhawm yog 1 xyoos. Thov siv nws li ntawm 3 lub hlis tom qab qhib. Zam tsis txhob tshav ntuj ncaj qha, txhawm rau txuas lub sijhawm siv, thov tsis txhob khaws cia rau hauv ib puag ncig siab dua 40 degree .Yog tias lub sijhawm khaws cia ntau dhau, thov ua qhov kev sim ua ntej siv.
Cim npe nrov: Tuam Tshoj Trimethylolpropane (TMP) manufacturers, lwm tus neeg, Hoobkas
