Nhazi ntụaka maka Plastik Thermoplastic PVC nke na-egbochi ọkụ V-0
Iji nweta ọkwa mbelata ọkụ V-0 (dịka ọkọlọtọ UL-94 si dị) na plastik thermoplastic PVC, aluminom hypophosphite na boric acid bụ ihe mgbochi ọkụ abụọ a na-ejikarị eme ihe. Ọ dị mkpa ka a hazie ọkwa mgbakwunye ha dabere na nhazi akọwapụtara, ọnọdụ nhazi, na ihe achọrọ maka arụmọrụ. N'okpuru ebe a bụ ụfọdụ ndụmọdụ na oke ntụaka:
1. Ọkwa Mgbakwunye nke Aluminom Hypophosphite
Aluminom hypophosphite bụ ihe na-egbochi ire ọkụ nke sitere na phosphorus nke ọma, nke dabara adaba maka ihe PVC. Ọ na-egbochi ire ọkụ site n'ịmepụta oyi akwa phosphate na-echebe ma na-ewepụta gas phosphoric acid.
- Ọkwa mgbakwunye akwadoro: 15–25 ph(akụkụ kwa otu narị akụkụ nke resin)
- Maka PVC ọkọlọtọ, ịgbakwunye gburugburu20 phrnke aluminom hypophosphite na-enwetakarị ọkwa V-0 nke ire ọkụ.
- Maka oke mbelata ọkụ, enwere ike ịbawanye dose ahụ, mana a ga-atụle mmetụta ya na ihe ndị dị na igwe.
- Mkpachapụ anya:
- Oke hypophosphite aluminom nwere ike ibelata arụmọrụ nhazi (dịka ọmụmaatụ, enweghị ike ịgafe nke ọma).
- A na-atụ aro ka ị jikọta ya na ihe ndị ọzọ na-egbochi ire ọkụ (dịka ọmụmaatụ, boric acid, aluminum hydroxide) maka mmetụta synergistic.
2. Ọkwa Mgbakwunye nke Boric Acid
Boric acid bụ ihe na-egbochi ire ọkụ dị ọnụ ala nke na-arụ ọrụ karịsịa site na mmebi endothermic na ịmepụta oyi akwa nchebe dị ka iko.
- Ọkwa mgbakwunye akwadoro: 5–15 phr
- A na-ejikarị Boric acid eme ihe dị ka ihe na-egbochi ire ọkụ nke abụọ, oke oke nwere ike imebi ihe onwunwe igwe na nhazi.
- Na PVC, na-agbakwụnye gburugburu10 phrnke boric acid nwere ike ijikọ ya na aluminom hypophosphite iji mee ka ire ọkụ ghara ịdị irè.
- Mkpachapụ anya:
- Boric acid bụ hygroscopic, yabụ nchekwa na njikwa kwesịrị izere ịmịnye mmiri.
- Mmetụta ya na-egbochi ire ọkụ na-ebelata mgbe ejiri ya naanị ya; a na-ejikọta ya na ihe ndị ọzọ na-egbochi ire ọkụ (dịka ọmụmaatụ, aluminom hypophosphite, aluminom hydroxide).
3. Nhazi nke Aluminom Hypophosphite na Boric Acid
Iji nweta ọkwa V-0, enwere ike ijikọta aluminom hypophosphite na boric acid iji mee ka mmetụta synergistic dị. N'okpuru ebe a bụ usoro ntụaka:
- Aluminom hypophosphite: 15–20 ph
- Boric acid: 5–10 phr
- Ihe mgbakwunye ndị ọzọ:
- Plasticizer (dịka ọmụmaatụ, DOP): Dịka ọ dị mkpa (a na-agbanwe ya dabere na ihe achọrọ maka ike PVC)
- Ihe na-eme ka ihe kwụsie ike:2–5 phr(dịka ọmụmaatụ, nnu ndu, ihe ndị na-eme ka calcium-zinc sie ike)
- Mmanụ mmanụ:0.5–1 phr(dịka ọmụmaatụ, stearic acid)
Nhazi Ihe Nlereanya:
- Resin PVC:100 phr
- Aluminom hypophosphite:18 phr
- Borate zinc:8 phr
- Ihe e ji plasticizer (DOP):40 phr
- Ihe na-eme ka ihe kwụsie ike:3 phr
- Mmanụ mmanụ:0.8 phr
4. Nnwale na Nhazi
N'ime ngwa ndị dị irè, a na-atụ aro usoro ndị a maka nnwale na imeziwanye:
- Usoro nnwale:Kwadebe obere nnwale dabere na oke ntụaka.
- Ule UL-94:Mee ule ọkụ kwụ ọtọ iji nyochaa ọkwa nke ire ọkụ.
- Nnwale arụmọrụ:Nyochaa njirimara igwe (dịka ọmụmaatụ, ike nrụgide, ike mmetụta) na arụmọrụ nhazi (dịka ọmụmaatụ, ike ngagharị, nkwụsi ike okpomọkụ).
- Nhazi:Hazie ọkwa mgbakwunye nke aluminom hypophosphite na boric acid ma ọ bụ tinye ihe ndị ọzọ na-egbochi ire ọkụ (dịka ọmụmaatụ, aluminom hydroxide, antimony trioxide) iji mee ka arụmọrụ dịkwuo mma.
5. Ihe Ndị Dị Mkpa A Ga-atụle
- Okpomọkụ nhazi:Okpomọkụ nke aluminom hypophosphite na boric acid dị elu nke ukwuu; hụ na okpomọkụ nhazi agaghị agafe oke ndị a iji zere mmebi.
- Mgbasa:Hụ na e nwere otu ebe a na-ekesa ihe ndị na-egbochi ire ọkụ na PVC iji gbochie nsogbu nke itinye uche n'ebe dị iche iche.
- Mmetụta gburugburu ebe obibi:Ma aluminom hypophosphite na boric acid bụ ihe na-egbochi ire ọkụ gburugburu ebe obibi, mana ekwesịrị ịchọpụta na ha na ihe mgbakwunye ndị ọzọ dabara adaba.
6. Mmechi
Iji nweta ọkwa V-0 nke ire ọkụ na plastik thermoplastic PVC, ọkwa mgbakwunye akwadoro bụ15–25 phr maka aluminom hypophosphitena5-15 phr maka boric acidIji ihe ndị a na-egbochi ire ọkụ eme ihe n'otu oge nwere ike ime ka arụmọrụ ka mma. N'eziokwu, nhazi dabere na usoro na ihe achọrọ maka arụmọrụ dị mkpa, a ga-emekwa nnwale UL-94 iji chọpụta ọkwa ire ọkụ.
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Oge ozi: Jun-23-2025
