Epoxy Resin Khoom Siv E 12 25 kg / hnab
Khoom Siv Hluav Taws Xob Epoxy tau zoo - Hais lus txhais, khoom- thermosetting polymers dav siv hauv kev lag luam. Chemically, lawv feem ntau tsim los ntawm bisphenol a thiab epichlorohydrin, featuring reegy epoxy pawg nyob rau hauv lawv molecular chains. Nrog epoxy sib npaug phaus hnyav (EEW) xws li 500 txog kev ua kom zoo nkauj sib txawv nrog kev ua kom zoo ib yam li NPCE-909H ncav cuag 135-150 degree.
These resins gain strength through cross-linking with curing agents (e.g., dicyandiamide, anhydrides), forming a three-dimensional network. Key properties include high mechanical strength (tensile strength 65–85 MPa), excellent chemical resistance (resistant to acids, alkalis, and oil), and good electrical insulation (dielectric strength >20 kv / hli). Lawv qhov qis melt viscosity (1500-55,000 mpa · s ntawm 150 qib
Nyob rau hauv kev sib piv, "khoom oxidized resins" tsis yog cov lus thiab feem ntau yog cov chiv ntawm tsis meej pem. Nws tuaj yeem hais txog oxidized rosin resins- ntuj rosin hloov los ntawm oxidation, muaj cov accboxylic acids thiab ob npaug rau ob npaug. Cov no yog cov khoom ntawm chav sov tab sis qhov sib txawv ntawm epoxy resins. Lawv muaj qis dua cov ntsiab lus softening (70-100 degree), tsis zoo siv zog (brittle thiab tsawg ntawm cov kuab tshuaj-ocvents). Lawv lub ntsiab siv yog qhov sib txuas ua ke yog qhov yooj yim nyob rau hauv kub - yaj cov nplaum, binders hauv cov inks, lossis cov kev ua kom zoo nkauj hauv cov roj hmab vulcanization.
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Cim npe nrov: expoxy resin khoom e12, Tuam Tshoj expoxy resin khoom e12 chaw tsim khoom, cov chaw muag khoom, Hoobkas