Reference Formulation yeV-0 Flame-Retardant PVC Thermoplastic Plastics

Reference Formulation yeV-0 Flame-Retardant PVC Thermoplastic Plastics

Kuti uwane V-0 flame retardancy rating (maererano neUL-94 zviyero) muPVC thermoplastic plastiki, aluminum hypophosphite uye boric acid maviri anowanzo shandiswa retardants emoto. Iwo mazinga ekuwedzera anofanirwa kugadziridzwa zvichienderana neiyo chaiyo kuumbwa, kugadzirisa mamiriro, uye kuita zvinodiwa. Pazasi pane mamwe kurudziro uye referenzi renji:

1. Kuwedzera Nhamba yeAluminium Hypophosphite

Aluminium hypophosphite inoshanda phosphorus-based flame retardant inokodzera PVC zvinhu. Inodzivirira kupisa nekugadzira phosphate layer yekudzivirira uye kuburitsa phosphoric acid gasi.

• Inokurudzirwa kuwedzera level: 15–25 pr(zvikamu pazana zvikamu zve resin)
• Kune yakajairwa PVC, kuwedzera kutenderedza20 pryealuminium hypophosphite inowanzoita V-0 flame retardancy rating.
• Kune yakakwira murazvo kudzoreredza, iyo dosage inogona kuwedzerwa, asi iko kukonzeresa kwemakanika zvivakwa kunofanirwa kutariswa.
• Zvekungwaririra:
• Yakawandisa aluminium hypophosphite inogona kuderedza mashandiro ekugadzirisa (semuenzaniso, kuderera kuyerera).
• Inokurudzirwa kusanganisa nemamwe maretardants emoto (semuenzaniso, boric acid, aluminium hydroxide) ye synergistic mhedzisiro.

2. Kuwedzera Nhamba yeBoric Acid

Boric asidhi inodhura-inodhura murazvo wemoto unoshanda zvakanyanya kuburikidza nekuora kwekupedzisira uye kuumbwa kwegirazi-senge rekudzivirira layer.

• Inokurudzirwa kuwedzera level: 5–15 pr
• Boric acid inowanzo shandiswa seyechipiri murazvo unodzoreredza, uye kuwandisa kwakawanda kunogona kukanganisa michina uye kugadzirisa zvivakwa.
• MuPVC, kuwedzera kumativi10 prye boric acid inogona kuwirirana nealuminium hypophosphite kuti iwedzere kunonoka kwemurazvo.
• Zvekungwaririra:
• Boric acid ndeye hygroscopic, saka kuchengetedza uye kubata kunofanirwa kudzivirira kunwa kwemwando.
• Kubata kwayo kwemoto-retardant kunogumira kana ichishandiswa chete; inowanzo sanganiswa nezvimwe zvinodzosa moto (semuenzaniso, aluminium hypophosphite, aluminium hydroxide).

3. Synergistic Formulation yeAluminium Hypophosphite uye Boric Acid

Kuti uwane chiyero cheV-0, aluminium hypophosphite uye boric acid inogona kusanganiswa kuitira synergistic mhedzisiro. Pazasi pane referensi yekugadzira:

• Aluminium hypophosphite: 15–20 pr
• Boric asidhi: 5–10 pr
• Zvimwe zvinowedzera:
• Plasticizer (semuenzaniso, DOP): Sezvinodiwa (yakagadziridzwa zvichienderana nePVC kuomarara zvinodiwa)
• Stabilizer:2–5 pr(semuenzaniso, lead salt, calcium-zinc stabilizers)
• Mafuta ekuzora:0.5–1 pr(semuenzaniso, stearic acid)

Kugadzira Muenzaniso:

• PVC resin:100 pr
• Aluminium hypophosphite:18 pr
• Zinc borate:8 pr
• Plasticizer (DOP):40 pr
• Stabilizer:3 pr
• Mafuta ekuzora:0.8 pr

4. Kuedza uye Optimization

Mumashandisirwo anoshanda, anotevera matanho anokurudzirwa kuyedza uye optimization:

1. Pilot formulation:Gadzirira muyedzo mudiki unoenderana nereferenzi renji.
2. UL-94 bvunzo:Ita zviyedzo zvekupisa zvakamira kuti uongorore mwero wekudzoserwa kwemoto.
3. Performance test:Ongorora zvinhu zvemuchina (semuenzaniso, kusimba kwesimba, kusimba kwesimba) uye kugadzirisa mashandiro (semuenzaniso, kuyerera, kugadzikana kwekupisa).
4. Optimization:Gadzirisa mazinga ekuwedzera ealuminium hypophosphite uye boric acid kana kuunza zvimwe zvinodzosa moto (semuenzaniso, aluminium hydroxide, antimony trioxide) kuti uenderere mberi nekusimudzira kushanda.

5. Pfungwa Huru

• Processing tembiricha:Kuparara kwekushisa kwealuminium hypophosphite uye boric acid inenge yakakwirira; chengetedza tembiricha yekugadzira haipfuure iyi miganho kudzivirira kudzikisirwa.
• Kupararira:Ita shuwa kupararira kweyunifomu yevanodzosa moto muPVC kudzivirira nyaya dzenzvimbo.
• Environmental impact:Ose ari maviri aruminiyamu hypophosphite uye boric acid ane eco-inoshamwaridzika murazvo retardants, asi kuenderana nezvimwe zvinowedzera zvinofanirwa kusimbiswa.

6. Mhedziso

Kuti uwane V-0 flame retardancy rating muPVC thermoplastic plastiki, iwo anokurudzirwa kuwedzera mazinga ndeaya.15–25 phr yealuminium hypophosphiteuye5-15 phr ye boric acid. Synergistic kushandiswa kweaya anodzosa moto anogona kuwedzera mashandiro. Mukuita, optimization yakavakirwa pane chaiyo magadzirirwo uye mashandiro ekuita kwakakosha, uye UL-94 kuyedzwa kunofanirwa kuitwa kuti uone chiyero chekudzosa moto.

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