Rubber active agent si woyɔna hã be vulcanizing active agent. Nusi me agbe mele o alo nusi me agbe mele o si wozãna tsɔ naa vulcanization accelerator nawɔ dɔ. Ate ŋu ana accelerator ƒe ŋutete nadzi ɖe edzi, aɖe accelerator ƒe agbɔsɔsɔ dzi akpɔtɔ, eye wòana vulcanization ƒe ɣeyiɣia nanɔ kpuie. Nusiwo wotsɔ kpe ɖe nusiwo me agbe mele o ŋu ƒe akpa gãtɔ nye ga oxide, hydroxides kple basic carbonates, abe zinc oxide, lead oxide, calcium hydroxide, lead carbonate, kple bubuawo, nu vevitɔ kekeake le organic kpeɖeŋutɔ me enye fatty acids, eye amines, adzalẽwo, kple bubuawo kplɔe ɖo Abe stearic acid, dibutyloleic acid amine, zinc stearate, kple bubuawo ene 5% le rababa ƒe kpekpeme me.

Rubber Additives: Eƒe Nɔnɔmewo, Viɖewo, Kple Wo Zazã Tsitotsito

1. Zinc Oxide (ZnO) ƒe ʋuʋudedi .

Nunɔamesiwo:

• Aŋɔ ɣi si meʋẽna o si ƒe nuheŋusẽ tɔxɛ (5.6 g/cm3).

• Dzoxɔxɔ ƒe dzoxɔxɔ: 1,975°C; keklẽŋusẽ ƒe dzesi: 2.008–2.029.

• Reactivity kɔkɔ abe vulcanization activator ene.

• UV-xexe kple dɔlékuiwutike ƒe ŋutetewo.

Viɖe siwo le eŋu:

• Enaa sulfur vulcanization kabakaba (eɖea ɣeyiɣi si wotsɔ daa dɔe dzi kpɔtɔna 20–30%).

• Enaa mɔ̃ɖaŋununya ƒe nɔnɔmewo nyona ɖe edzi (tensile strength +15–25%, elongation at break +10–15%).

• FDA da asi ɖe edzi na nuɖuɖu-kadodo ƒe dɔbiagbalẽviwo (21 CFR 172.480).

• Nusiwo me gblẽa nu le nutome ŋu o (aɖi mele eme o, woate ŋu azãe ake).

Dɔbiagbalẽviwo:

• Tayawo: Taya ƒe kuku siwo wotsɔ gakpo bla ɖe wo nɔewo ŋu (enaa rababa kple gakpowo léna ɖe wo nɔewo ŋu nyuie wu).

• Afɔkpa: Outsole compounds (enaa abrasion tsitretsitsi nyona ɖe edzi, ASTM D5963: 50–80 mm3 ƒe bu).

• Atikewɔwɔ: Amekoko ƒe asigɛwo (dɔlékuiwutikewo takpɔnu, ASTM E2149).

• Nusiwo wotsɔna léa nu ɖe ​​nu ŋu: Goma kple ga ƒe kadodo (edzia lãgbalẽ ƒe ŋusẽ ɖe edzi 30–40%).

2. Phenolic-mi .

Nunɔamesiwo:

• Thermosetting polymer si ƒe crosslink ƒe kpekpeme lolo.

• Dzoxɔxɔ ƒe tsitretsitsi: Zãe atraɖii vaseɖe 180°C (250°C ɣeaɖewoɣi).

• Sesẽme gã (modulus: 2–4 GPa) kple didime ƒe liƒo.

• Atikewo ƒe tsitretsitsi ɖe acid, base, kple solvents ŋu.

Viɖe siwo le eŋu:

• Enaa xɔtuɖoɖo ƒe ŋusẽdodo (dzia sesẽme ɖe edzi 10–20 Shore A).

• Dzoxɔxɔnutsitike (UL94 V-0 ƒe dzeside si me halogen kpeɖeŋutɔ mele o).

• Gazazã nyuie ne wotsɔe sɔ kple dzoxɔxɔŋusẽtike tɔxɛwo.

• Dɔyɔyɔ ƒe ɖoɖo siwo woate ŋu atrɔ asi le (siwo wotsɔa acid-catalyzed alo heat-activated).

Dɔbiagbalẽviwo:

• Tayawo: Nusiwo wotsɔ wɔa axadzigliwo (enaa lãɖeɖe ƒe tsitretsitsi nyona ɖe edzi, ASTM D624).

• Dɔwɔƒewo ƒe Alidziblanu: Alidziblanu siwo wotsɔna tsɔa nu na nuto siwo me dzoxɔxɔ le ŋutɔ (le kpɔɖeŋu me, simintidɔwɔƒewo).

• Nusiwo Wotsɔ Wɔa Ʋuƒo: Brek ƒe ʋuƒo (eléa ʋuʋudedi ƒe xexlẽdzesi me ɖe asi le 0.35–0.45 le 200°C te).

• Foundry: Core sand binders (eɖea gas ƒe tɔtrɔ dzi kpɔtɔna le etutu me).