Rau cov nplaim retardant uas yuav tsum tau ntawm latex sponge, cov hauv qab no yog ib qho kev soj ntsuam raws li ntau yam nplaim taws retardants (aluminium hydroxide, zinc borate, aluminium hypophosphite, MCA) nrog rau cov lus pom zoo:
I. Kev soj ntsuam ntawm Kev Siv Hluav Taws Xob retardant uas twb muaj lawm
Aluminium Hydroxide (ATH)
Qhov zoo:
- Ib puag ncig tus phooj ywg, tus nqi qis.
- Ua haujlwm los ntawm endothermic decomposition thiab dej vapor tso tawm, haum rau cov tshuab tsis muaj halogen.
Qhov tsis zoo:
- Yuav tsum muaj kev thauj khoom siab (30-50 phr) rau kev ua tau zoo, uas yuav cuam tshuam rau daim txhuam cev elasticity thiab ntom.
Kev siv tau:
- Haum rau cov nplaim hluav taws kub retardant formulations.
- Pom zoo kom ua ke nrog cov synergists (xws li zinc borate).
Zinc Borate
Qhov zoo:
- Synergistic nplaim retardant, txhim khu kev ua tau zoo ATH.
- Txhawb kev tsim char thiab suppresses pa luam yeeb.
Qhov tsis zoo:
- Kev txwv tsis pub siv thaum siv ib leeg; yuav tsum tau ua ke nrog lwm cov nplaim retardants.
Kev siv tau:
- Pom zoo raws li kev sib koom ua ke rau ATH lossis aluminium hypophosphite.
Aluminium Hypophosphite
Qhov zoo:
- Ua tau zoo, tsis muaj halogen, tsis muaj loading (10-20 phr).
- Zoo thermal stability, haum rau siab nplaim retardancy yuav tsum.
Qhov tsis zoo:
- Tus nqi siab dua.
- Compatibility nrog latex systems xav tau kev txheeb xyuas.
Kev siv tau:
- Haum rau cov qauv hluav taws kub retardancy (piv txwv li, UL94 V-0).
- Yuav siv tau ib leeg los yog ua ke.
MCA (Melamine Cyanurate)
Qhov zoo:
- Nitrogen-raws li nplaim retardant, pa luam yeeb-suppressing.
Qhov tsis zoo:
- Tsis zoo dispersibility.
- Tej zaum yuav cuam tshuam nrog foaming.
- Siab decomposition kub (~300 ° C), mismatched nrog tsawg-kub latex ua.
Kev siv tau:
- Tsis pom zoo ua qhov tseem ceeb; xav tau kev sim validation.
II. Pom zoo Formulations thiab txheej txheem kev pom zoo
Formulation 1: ATH + Zinc Borate (Kev xaiv nyiaj txiag)
Kev sib xyaw:
- Aluminium Hydroxide (ATH): 30-40 phr
- Zinc Borate: 5-10 phr
- Dispersant (piv txwv li, silane coupling agent): 1-2 phr (txhim kho dispersibility)
Yam ntxwv:
- Tus nqi qis, tus phooj ywg environmentally.
- Haum rau cov kev xav tau ntawm cov nplaim hluav taws xob (piv txwv li, UL94 HF-1).
- Tej zaum yuav txo cov sponge resilience; Vulcanization optimization xav tau.
Formulation 2: Aluminium Hypophosphite + Zinc Borate (High-Efficiency Option)
Kev sib xyaw:
- Aluminium Hypophosphite: 15-20 phr
- Zinc Borate: 5-8 phr
- Plasticizer (piv txwv li, kua paraffin): 2-3 phr (txhim kho cov txheej txheem)
Yam ntxwv:
- High nplaim retardancy efficiency, tsawg loading.
- Haum rau cov xwm txheej xav tau siab (piv txwv li, ntsug hlawv V-0).
- Compatibility ntawm aluminium hypophosphite nrog latex xav tau kev sim.
Formulation 3: ATH + Aluminium Hypophosphite (Kev xaiv sib npaug)
Kev sib xyaw:
- Aluminium hydroxide: 20-30 phr
- Aluminium Hypophosphite: 10-15 phr
- Zinc Borate: 3-5 phr
Yam ntxwv:
- Ntsuas tus nqi thiab kev ua haujlwm.
- Txo kev cia siab rau ib qho hluav taws kub retardant, txo qhov cuam tshuam rau lub cev.
III. Txheej txheem kev txiav txim siab
Dispersibility:
- Cov nplaim hluav taws yuav tsum yog av rau ≤5μm kom tsis txhob cuam tshuam cov qauv ua npuas ncauj.
- Pre-dispersion nyob rau hauv latex los yog high-speed mixing khoom yog pom zoo.
Curing Conditions:
- Tswj qhov kub thiab txias (feem ntau yog 110-130 ° C rau latex) kom tiv thaiv kom tsis txhob ntxov ntxov ntawm cov nplaim hluav taws.
Kev Ntsuas Kev Ua Haujlwm:
- Cov kev ntsuam xyuas tseem ceeb: Oxygen Index (LOI), Vertical Hlawv (UL94), Qhov ntom ntom, Resilience.
- Yog tias cov nplaim hluav taws kub tsis txaus, maj mam nce aluminium hypophosphite lossis ATH piv.
IV. Cov lus qhia ntxiv
Kev xeem MCA:
- Yog tias sim, siv 5-10 phr hauv cov khoom me me kom pom qhov cuam tshuam ntawm foaming uniformity.
Environmental Certifications:
- Xyuas kom cov nplaim hluav taws raug xaiv ua raws li RoHS / REACH rau kev xa tawm.
Synergistic Blends:
- Xav txog kev ntxiv me me ntawm nanoclay (2-3 phr) los txhim kho cov teeb meem char barrier.
This proposal serves as a reference. Small-scale trials are recommended to optimize specific ratios and process parameters. More info , pls contact lucy@taifeng-fr.com
Post lub sij hawm: May-22-2025
