Nhau - Flame retardant Aluminium Hypophosphite uye MCA yeEVA Heat-Shrink Tubing

Flame retardant Aluminium Hypophosphite uye MCA yeEVA Heat-Shrink Tubing

Paunenge uchishandisa aluminium hypophosphite, MCA (melamine cyanrate), uye magnesium hydroxide sezvinodzoreredza murazvo muEVA heat-shrink tubing, iwo akakurudzirwa dosage renji uye optimization nzira ndeaya anotevera:

1. Inokurudzirwa Dosage yeFlame Retardants

Aluminium Hypophosphite

Dosage:5%–10%
Basa:Inoshanda zvakanyanya murazvo retardant, inosimudzira kuumbwa kwechar, uye inoderedza kupisa kuburitsa mwero.
Cherechedza:Kuwanda kwemari kunogona kukanganisa kushanduka kwezvinhu; ma synergistic agents anofanirwa kuverengerwa kuitira optimization.

MCA (Melamine Cyanurate)

Dosage:10%–15%
Basa:Gas-phase flame retardant, inobata kupisa uye inoburitsa inert magasi (eg, NH₃), synergizing nealuminium hypophosphite kuwedzera kunonoka kwemurazvo.
Cherechedza:Kuwandisa kunogona kukonzera kutama; kuenderana neEva kunofanirwa kuve nechokwadi.

Magnesium Hydrooxide (Mg(OH)₂)

Dosage:20%–30%
Basa:Endothermic decomposition inoburitsa mhute yemvura, kunyungudutsa magasi anobvira uye kudzvanyirira utsi.
Cherechedza:Kutakura kwakanyanya kunogona kuderedza zvinhu zvema mechanical; kugadziriswa kwepamusoro kunokurudzirwa kuvandudza kupararira.

2. Kugadziriswa Kwekugadzirisa Mazano

Yese Flame Retardant System:Haifanire kudarika 50% kuenzanisa kunonoka kwemoto uye processability (semuenzaniso, kuchinjika, shrinkage rate).
Synergistic Effects:
Aluminium hypophosphite uye MCA inogona kuderedza munhu dosages (semuenzaniso, 8% aruminiyamu hypophosphite + 12% MCA).
Magnesium hydroxide inozadzisa murazvo kunonoka kuburikidza ne endothermic mhedzisiro uku ichideredza utsi.
Surface Treatment:Silane coupling agents inogona kuwedzera kupararira uye interfacial bonding ye magnesium hydroxide.
Auxiliary Additives:
Wedzera 2% -5% char-forming agents (semuenzaniso, pentaerythritol) kuti uvandudze char layer.
Batanidza zvidiki zvemapurasitiki (semuenzaniso, epoxidized soya bean mafuta) kutsiva kurasikirwa kwekushanduka.

3. Performance Validation Directions

Flame Retardancy Testing:
UL94 yakatwasuka yekupisa bvunzo (chinangwa: V-0).
Kuderedza Oxygen Index (LOI> 28%).
Mechanical Properties:
Ongorora kusimba kwesimba uye kureba panguva yekuzorora kuti uve nechokwadi chekuti kuchinjika kunosangana nezvinodiwa zvekushandisa.
Processability:
Monitor Melt Flow Index (MFI) kuti udzivise matambudziko ekugadzirisa nekuda kwekuwanda kwekuzadza.

4. Mutengo uye Mafungiro Ezvakatipoteredza

Mutengo Wemari:Aluminium hypophosphite inodhura; dosage yayo inogona kuderedzwa (inowedzerwa neMCA) kudzora mutengo.
Kushamwaridzana Nezvakatipoteredza:Magnesium hydroxide haina chepfu uye inotsikirira utsi, ichiita kuti ive yakakodzera kune eco-hushamwari maapplication.

Kugadzira Muenzaniso (kungotaura chete):