Qhov sib txawv ntawm Melamine thiab Melamine Resin
1. Chemical Structure & Composition
- Melamine
- Cov tshuaj formula: C3H6N6C3H6N6
- Ib qho me me organic compound nrog lub nplhaib triazine thiab peb amino (-NH2-NH2) pawg.
- Dawb crystalline hmoov, me ntsis soluble hauv dej.
- Melamine Resin (Melamine-Formaldehyde Resin, MF Resin)
- Lub thermosetting polymer tsim los ntawm cov tshuaj tiv thaiv condensation ntawm melamine thiab formaldehyde.
- Tsis muaj cov qauv tshuaj ruaj khov (kev sib txuas 3D network qauv).
2. Synthesis
- Melamineyog tsim industrially los ntawm urea nyob rau hauv qhov kub thiab txias.
- Melamine Resinyog synthesized los ntawm reacting melamine nrog formaldehyde (nrog catalysts zoo li acid los yog puag).
3. Cov khoom tseem ceeb
| Khoom | Melamine | Melamine Resin |
| Solubility | Me ntsis soluble hauv dej | Insoluble tom qab kho |
| Thermal stability | Decomposes ntawm ~ 350 ° C | Kub-resistant (txog li 200 ° C) |
| Mechanical Strength | Brittle crystals | Hard, khawb-resistant |
| Toxicity | Toxic yog noj (piv txwv li, lub raum puas) | Tsis muaj tshuaj lom thaum kho tag nrho (tab sis seem formaldehyde tej zaum yuav muaj kev txhawj xeeb) |
4. Cov ntawv thov
- Melamine
- Raw khoom rau melamine resin.
- Nplaim retardant (thaum ua ke nrog phosphates).
- Melamine Resin
- Laminates: Countertops, rooj tog zaum (xws li Formica).
- Khoom noj hmo: Melamine tableware (mimics porcelain tab sis lub teeb yuag).
- Adhesives & Coatings: Water-resistant ntoo kua nplaum, muaj txheej txheej.
- Textiles & Ntawv: Txhim kho wrinkle thiab nplaim tsis kam.
5. Cov ntsiab lus
| Yam | Melamine | Melamine Resin |
| Xwm | Me me molecule | Polymer (hloov sib txuas) |
| Kev ruaj ntseg | Soluble, decomposes | Thermoset (insoluble thaum kho) |
| Siv | Tshuaj ua ntej | Cov khoom kawg (plastics, coatings) |
| Kev nyab xeeb | Toxic nyob rau hauv cov koob tshuaj ntau | Muaj kev nyab xeeb yog tias kho tau zoo |
Melamine resin yog cov polymerized, muaj txiaj ntsig zoo ntawm melamine, muab cov kav ntev thiab kub ua haujlwm, thaum cov ntshiab melamine yog cov tshuaj nruab nrab nrog cov kev siv ncaj qha.
Lub sij hawm xa tuaj: Plaub Hlis-10-2025
