Vim li cas koj F-44 Epoxy Tg poob luv: Qhov teeb meem EEW Drift thiab DDS Stoichiometry

Qhov sib txawv ntawm daim ntawv teev npe EEW thiab koj qhov ntau tiag tiag hloov crosslink ceev. Nov yog yuav ua li cas kho koj tus DDS phr thiab txheeb xyuas cov tshuaj hydrolyzable chlorine ua ntej batch ua tsis tiav.

Koj nyuam qhuav rub DMA cov txiaj ntsig. Tg rov qab los ntawm 185 degree. Koj lub hom phiaj yog 210 degree. Lub voj voog kho tau zoo ib yam. Lub qhov cub yog calibrated. Lub tshuab nqus tsev ntim tau nruj.

Qhov teeb meem tsis yog koj tus txheej txheem. Nws yog lub nruas ntawmF-44 phenolic epoxy resin (CAS 9003-36-5)koj nyuam qhuav qhib. Lub Epoxy Equivalent Weight (EEW) drifted mus rau sab saum toj ntawm specification. Pab neeg formulation ntawmAlfa Tshuaj(Zhengzhou, Tuam Tshoj) pom qhov kev ua tsis tiav no ntau zaus thaum cov kws tsim qauv suav stoichiometry tiv thaiv ib qho chaw nruab nrab ntawm qhov tsis yog qhov tseeb ntau COA.

Chemistry of EEW Drift

F-44 yog phenol-formaldehyde epichlorohydrin polycondensate. Nws yog oligomer tis, tsis yog ib qho molecule. Nruab nrab functionality zaum ntawm2.5–2.8.

Daim ntawv teev npe "EEW 160-180" zais qhov sib txawv. Ib qho EEW 180 ntau muaj tsawg dua reactive epoxy pawg ib gram dua li EEW 160 ntau. Yog tias koj tsim siv 170 midpoint los xam DDS (diaminodiphenyl sulfone) hardener, koj yuav tshaj 180 ntau.

Ntau tshaj amine ua raws li cov saw terminator. Lub network nres loj hlob ntxov. Crosslink ceev poob. Tg vaum.

Cov ntaub ntawv pov thawj: DDS Consumption vs. EEW

Mus txog Tg200-220 degreesnrog rau theem tom qab kho (120℃/2h + 177℃/2h + 200℃/2h), stoichiometry yuav tsum muaj tseeb. Nov yog DDS phr hloov raws li ntau EEW (DDS AHEW=62):

Tshem tawm qhov sib txawv: Ntau-Specific Control

Formulators tsis tuaj yeem tsom tus lej txav. Xam koj cov stoichiometry tiv thaiv lub nruas nyob rau hauv pem hauv ntej ntawm koj.

Alfa Tshuajtsim F-44 phenolic epoxy resin (CAS 9003-36-5) ntawm peb qhov chaw nyob hauvZhengzhou, Suav. Peb tsis lees paub qhov ntau-tsuas yog txoj hauv kev. Txhua lub nruas yog titrated, thiab COA qhia txog ib qho kev ntsuas EEW rau qhov tshwj xeeb batch.

Peb kuj tswj cov theem ntxuav hauv tsev kom khaws cov tshuaj hydrolyzable chlorineTsawg dua lossis sib npaug li 500 ppm. Qhov no minimizes accelerator lom. DDS curing profile koj siv tau ntawm 1 kg qauv yuav hloov mus rau 200 kg ntau lawm nruas.

Kev Nyeem Ntawv

• Epoxy & Polymer Additives- Tshawb xyuas cov kua resins, polymers, thiab sib xws nrog cov kub kub hardeners.
• F-44 Phenolic Epoxy Resin (CAS 9003-36-5)- Saib tag nrho cov lus qhia tshwj xeeb thiab thov ntau qhov tshwj xeeb batch COA.
• Hu rau peb pab neeg R & D- Sib tham txog koj cov sijhawm kho DDS tshwj xeeb thiab stoichiometry nrog peb cov kws tshaj lij.