Hydroxyethyl acrylate
Chidule cha Zamalonda
Hydroxyethyl Acrylate (HEA) ndi monomer yogwira ntchito mosiyanasiyana komanso yofunika kwambiri mu polymer chemistry. Ili ndi polymerizable acrylic double bond ndi reactive hydroxyl group mu molekyulu yomweyo. Kapangidwe kameneka kamathandiza kuti ipange copolymerization mosavuta ndi ma monomers osiyanasiyana komanso kutenga nawo mbali mu crosslinking reactions. Ndi madzi owoneka bwino, opanda mtundu kapena achikasu owala ndipo amadziwika kuti amawonjezera kwambiri magwiridwe antchito a zinthu zomaliza za polymeric, ngakhale zitagwiritsidwa ntchito pang'ono.
Mafotokozedwe Ofunika
| Katundu | Kufotokozera / Mtengo Wamba |
| Maonekedwe | Madzi oyera, opanda mtundu mpaka achikasu pang'ono |
| Chiyero (%) | ≥ 97.0 |
| Kuchuluka kwa Madzi (%) | ≤ 0.5 |
| Choletsa (MEHQ) | 200 ± 50 ppm (kapena monga momwe tafotokozera) |
| Asidi (monga Acid Acid) (%) | ≤ 0.05 |
| Mtundu (APHA) | ≤ 30 |
| Kuchulukana (20 °C) | ~1.10 g/cm³ |
| Malo Owira | ~ 90 °C (pa 5 mmHg) |
| Mtengo wa Hydroxyl (mg KOH/g) | ~ 480 |
Mapulogalamu Aakulu
Magwiridwe antchito awiri a HEA amapangitsa kuti ikhale yofunika kwambiri m'mafakitale ambiri:
Zophimba ndi Inki:
Zophimba Zotenthetsera: Chophimba chachikulu cha thermosetting mu zophimba zamagalimoto, zamafakitale, ndi zamagetsi. Gulu la hydroxyl limalumikizana ndi melamine-formaldehyde kapena polyisocyanate resins (mu zophimba za PU), zomwe zimapangitsa kuti zikhale zolimba kwambiri, zotsutsana ndi mankhwala, komanso zotsutsana ndi mar.
Machitidwe Ochiritsira ndi Kuchiritsa: Amagwiritsidwa ntchito ngati chosungunula chosinthika komanso cholumikizira mu zokutira, inki, ndi zomatira zochiritsira za UV/EB. Ndi chinthu chofunikira kwambiri pakupanga ma acrylates a urethane.
Photoresists & Photoreactive Polymers: Amagwiritsidwa ntchito popanga ma resins a photoresist a mbale zosindikizira ndi zamagetsi (semiconductors, LCDs).
Zomatira ndi Zotsekera:
Zimawonjezera mphamvu yomatirira ku zinthu zosiyanasiyana, kuphatikizapo zitsulo ndi pulasitiki.
Zimawonjezera kuchulukana kwa ma crosslink, zomwe zimapangitsa kuti kutentha kukhale kolimba kwambiri, kukana mankhwala, komanso kukhala ndi mphamvu yogwirizana mu zomatira zomwe zimakhudzidwa ndi kapangidwe kake komanso kupsinjika (PSAs).
Nsalu ndi Ulusi:
Amagwiritsidwa ntchito ngati co-monomer mu mankhwala ochizira ulusi ndi zophimba nsalu kuti apereke kukana madzi, kukana makwinya, komanso kulimba.
Kukonza Mapepala:
Imaphatikizidwa mu njira zophikira kuti ikhale yolimba komanso yonyowa, yolimba komanso yolimba, komanso yolimba kuti isasindikizidwe mosavuta.
Mapulogalamu Apadera:
Makampani Opangira Mafuta: Amagwiritsidwa ntchito ngati mankhwala opangira sopo ndi zowonjezera zotayira mafuta.
Zamagetsi: Zimagwiritsidwa ntchito ngati chothandizira kutaya madzi m'thupi pokonzekera chitsanzo cha electron microscopy.
Chemistry Yosanthula: Imagwira ntchito ngati chothandizira cha mankhwala komanso ngati gawo la zinthu zosakaniza madzi.
Zinthu Zofunika & Mapindu
Kugwira Ntchito Kawiri: Gulu la acrylate limalola copolymerization, pomwe gulu la hydroxyl limalola kulumikizana ndi kusintha kwa mankhwala.
Kugwira Ntchito Kwambiri: Kumapereka kulimba kwabwino, kukana mankhwala, komanso kumamatira ku ma polima omaliza.
Kugwira Ntchito Kwambiri: Kumapangidwanso mosavuta ndi ma acrylates, methacrylates, styrene, vinyl acetate, acrylonitrile, ndi zina zambiri.
Kusinthasintha: Koyenera njira zosiyanasiyana zoyeretsera, kuphatikizapo yankho, emulsion, ndi suspension polymerization.
Kugwira Ntchito Moyenera: Kumapereka kusintha kwakukulu kwa katundu wa malonda ngakhale pamlingo wochepa wogwiritsidwa ntchito (nthawi zambiri 2-10%).
Kukhuthala Kochepa: Kumagwira ntchito ngati chosungunula chogwira ntchito bwino m'machitidwe ochiritsika ndi ma radiation, kuthandiza kuchepetsa kukhuthala kwa kapangidwe kake popanda kugwiritsa ntchito mankhwala osakanikirana achilengedwe (VOCs).
Kusamalira ndi Kusunga
Kutentha Kosungira: Sungani pamalo ozizira, opumira bwino. Kutentha koyenera kosungirako ndi pakati pa 2°C ndi 25°C (36°F ndi 77°F). Pewani kuzizira kwambiri komanso kutentha kwambiri.
Choletsa: Chili ndi choletsa cha MEHQ kuti chisalowe m'thupi mwachibadwa. Choletsachi chimafuna kuti mpweya ukhalepo kuti ugwire ntchito; chifukwa chake, kusungidwa mumlengalenga wopanda mpweya (monga nayitrogeni padding) ndikofunikira kuti zinthu zikhale bwino kwa nthawi yayitali.
Chidebe: Sungani m'zidebe zotsekedwa bwino zopangidwa ndi chitsulo chosapanga dzimbiri, chitsulo chopangidwa ndi phenolic resin, kapena polyethylene. Tetezani ku kuwala.
Moyo wa Shelf: Kawirikawiri miyezi 6 mpaka 12 kuchokera tsiku lopangidwa ikasungidwa motsatira malamulo oyenera.
Kugwira: Gwiritsani ntchito ndi mpweya wokwanira komanso njira zowongolera zaukadaulo. Pewani kukhudzana ndi khungu, maso, ndi zovala. Valani zida zoyenera zodzitetezera (PPE), kuphatikizapo magolovesi osagwira mankhwala, magalasi oteteza, ndi zovala zodzitetezera.