Iindaba
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Iyintoni ingqikelelo yokuphuhliswa kwe-bisphenol A-based epoxy resin?
Imveliso ye-Bisphenol A epoxy resin esekwe kwi-BPA ibandakanya i-80% yoshishino lonke lwe-epoxy resin, kwaye amathuba ophuhliso lwayo athembisa kakhulu. Ke ngoko, kuphela ngokuphucula ubuchwepheshe bemveliso ekhoyo kunye nokufezekisa iinkqubo zemveliso ezisemgangathweni ophezulu neziqhubekayo apho sinokuthi sihambe ngcono...Funda ngokugqithisileyo -
I-Bisphenol A (BPA) yinto ebalulekileyo yekhemikhali yendalo.
I-Bisphenol A (BPA) zizinto ezibalulekileyo ze-organic chemical raw material, ezisetyenziswa kakhulu ekuveliseni izinto ezahlukeneyo ze-polymer ezifana ne-polycarbonate, i-epoxy resin, i-polysulfone resin, i-polyphenylene ether resin, kunye ne-unsaturated polyester resin. Ingadityaniswa nee-dibasic acids ukwenza iintlobo ezahlukeneyo...Funda ngokugqithisileyo -
Iyintoni imeko yozinzo lwekhemikhali ye-bisphenol A?
Inkqubo Yokusabela yeBisphenol A Xa kufikwa kwibisphenol A, yikhompawundi yendalo ebambe isikhundla esibalulekileyo kwishishini leekhemikhali! Inkqubo yayo yokusabela ibandakanya iinkalo ezininzi, ezintsonkothileyo nezinomdla. Ulwazi oluSisiseko lweBisphenol A Bisphenol A, kunye nesayensi...Funda ngokugqithisileyo -
Yintoni iBisphenol A?
I-Bisphenol A (BPA) sisiqalelo esisetyenziswa ekuvelisweni kwee-polycarbonates, ii-epoxy resins, ii-polysulfones, ii-phenoxy resins, ii-antioxidants, kunye nezinye izinto. Isetyenziswa kakhulu ekuvelisweni kwee-linings zokutya ezigqunywe ngesinyithi, izinto zokupakisha ukutya, izikhongozeli zesiselo, izitya zetafile, kunye...Funda ngokugqithisileyo -
I-bisphenol A BPA ishwankathelwa njani?
Isishwankathelo seBisphenol A BPA Yaqala ukuveliswa ngo-1936 njenge-estrogen yokwenziwa, i-bisphenol A (BPA) ngoku yenziwa ngomthamo wonyaka odlula iibhiliyoni ezi-6 zeepawundi. I-Bisphenol A BPA isetyenziswa kakhulu njengebhloko yokwakha iiplastiki ze-polycarbonate, ezifumaneka kwiimveliso ezifana ne-baby b...Funda ngokugqithisileyo -
Ziziphi iindlela ezisetyenziswa ngayo i-bisphenol A?
Iipolycarbonate kunye nee-epoxy resins. Ikwasetyenziswa ekwenzeni iiplastiki zobunjineli eziphambili ezifana ne-polysulfone, kunye ne-tetrabromobisphenol A, esetyenziswa kakhulu njenge-larm retardant. I-Polycarbonate (eyona mthengi mkhulu we-bisphenol A) ayinancasa, ayinavumba, ayinatyhefu, kwaye...Funda ngokugqithisileyo -
Yintoni i-bisphenol a bpa esetyenziselwa yona?
I-Bisphenol a bpa isetyenziswa kakhulu kwimveliso yezinto ezahlukeneyo zepolymer, ezifana nee-epoxy resins, ii-polycarbonates, ii-polysulfones, ii-phenolic unsaturated resins, ii-polyphenylene ether resins, ii-polyaryl compounds, ii-polyetherimides, ii-tetrabromobisphenol A, iziqinisi zobushushu ze-PVC, ii-antioxidants zerabha,...Funda ngokugqithisileyo -
Yintoni iqondo lokubila le-bisphenol?
I-Bisphenol A (BPA), ekwaziwa ngokuba yi-diphenylolpropane okanye (4-hydroxyphenyl)propane, yenza iikristale ze-prismatic kwi-dilute ethanol kunye neekristale ezifana nenaliti emanzini. Iyatsha kwaye inevumba eliphantsi le-phenolic. Iqondo layo lokunyibilika yi-157.2°C, i-flash point yi-79.4°C, kwaye iqondo lokubila le-bisphenol a yi-2...Funda ngokugqithisileyo -
Yintoni iBisphenol A?
Ulwazi oluSisiseko lweBisphenol A (bpa) IBisphenol A, ekwaziwa ngokuba yiBPA, yikhompawundi yendalo enefomula yemolekyuli C₁₅H₁₆O₂. Kwimizi-mveliso, isetyenziswa ekuveliseni izinto ezifana ne-polycarbonate (PC) kunye ne-epoxy resins. Ukususela ngeminyaka yoo-1960, iBPA ibisetyenziswa ekuveliseni iplast...Funda ngokugqithisileyo -
Uyisebenzisa njani i-sodium hydrosulfite color remover?
Indlela Yokususa Amabala Kwimpahla Emhlophe Indlela Yokuntywila Indebe Yesodium hydrosulfite Ukuba kukho amabala akwindawo ethile, sebenzisa indebe enesidanga sokuntywila. Galela amanzi ashushu athile (angaphezulu kwama-90°C) kwindebe. Yongeza i-sodium hydrosulfite (uxinzelelo olumalunga ne-2.5%) kwaye uvuselele ukuze inyibilike. Gcoba...Funda ngokugqithisileyo -
Ziziphi iindlela zokuba khona kwe-sodium dithionite?
Iipropati Zomzimba: I-Sodium dithionite ihlelwa njengesixhobo esivuthayo seBanga loku-1. Ikwaziwa njengeRongalite. Ngokwezorhwebo, ikhona ngeendlela ezimbini: i-Na₂S₂O₄·2H₂O kunye ne-Na₂S₂O₄ engenamanzi. Eyokuqala yikristale emhlophe entle, ngelixa eyesibini ingumgubo otyheli okhanyayo. Ubuninzi bayo bu...Funda ngokugqithisileyo -
Iarhente yokunciphisa: iSodium Hydrosulfite
Iarhente Yokunciphisa: I-Sodium Hydrosulfite Igama leKhemikhali: I-Sodium dithionite. Xa ithelekiswa nee-oxidizing agents, i-sodium hydrosulfite ayibangeli monakalo mkhulu kakhulu kwilaphu. Ingasetyenziswa kwilaphu ezenziwe ngeefayibha ezahlukeneyo ngaphandle kokubangela monakalo, yiyo loo nto igama elithi "hydrosulfite" (elithetha ukhuseleko lwayo)....Funda ngokugqithisileyo