Ihe na-arụ ọrụ rọba nke a makwaara dị ka onye na-arụ ọrụ vulcanizing. Ihe inorganic ma ọ bụ organic na-eji eme ngwangwa vulcanization na-arụ ọrụ. Ọ nwere ike ibuli ikike nke ihe osooso, belata ọnụ ọgụgụ nke ngwa ngwa, ma belata oge ịgbapụ. Ọtụtụ n'ime ihe mgbakwunye inorganic bụ metal oxides, hydroxides na isi carbonates, dị ka zinc oxide, lead oxide, calcium hydroxide, lead carbonate, wdg, ihe kasị mkpa na organic mgbakwunye bụ ọdụdụ asịd, sochiri amines, ncha, wdg Dị ka stearic acid, dibutyloleic acid amine, zinc stearate nke general dobe 5%, wdg.

Ihe mgbakwunye rọba: Njirimara zuru oke, uru na ngwa

1. Zinc oxide (ZnO)

Njirimara:

• Ọcha, ntụ ntụ na-enweghị isi nwere nnukwu ike ndọda (5.6 g/cm³).

• Ebe mgbaze: 1,975°C; Ntụgharị ntụgharị: 2.008–2.029.

• Mmeghachi omume dị elu dị ka onye na-eme ka vulcanization.

• UV-igbochi na antimicrobial Njirimara.

Uru:

• Na-eme ka sọlfọ vulcanization ngwa ngwa (na-ebelata oge ọgwụgwọ site na 20-30%).

• Na-eme ka ihe ndị na-arụ ọrụ na-arụ ọrụ (ike ike + 15-25%, elongation na nkwụsịtụ + 10-15%).

• FDA-akwadoro maka ngwa kọntaktị nri (21 CFR 172.480).

• Enyi na gburugburu ebe obibi (anaghị egbu egbu, enwere ike ịmegharị ya).

Ngwa:

• Taya: Ozu taya radial nke nwere eriri igwe (na-eme ka adhesion n'etiti rọba na nchara).

• Akpụkpọ ụkwụ: Ogige ndị dịpụrụ adịpụ (na-akwalite nguzogide abrasion, ASTM D5963: mfu 50-80 mm³).

• Ọgwụ: gloves ịwa ahụ (nchekwa ọgwụ nje, ASTM E2149).

• Adhesives: Njikọta roba na ọla (na-abawanye ike bee site na 30–40%).

2. Resin phenolic

Njirimara:

• Thermosetting polymer nwere njupụta crosslink dị elu.

• Okpomọkụ na-eguzogide: Ojiji na-aga n'ihu ruo 180°C (na-adịte aka 250°C).

• Isi ike dị elu (modul: 2-4 GPA) na nkwụsi ike nke akụkụ.

• Nguzogide kemịkalụ na acid, bases na ihe mgbaze.

Uru:

• Na-enye nkwado ihe nhazi (na-abawanye ike site na 10–20 Shore A).

• Ọkụ retardant (UL94 V-0 na-enweghị mgbakwunye halogen).

• Ọ dị ọnụ ahịa ma e jiri ya tụnyere thermoplastics pụrụ iche.

• Usoro ọgwụgwọ nwere ike ịhazi ya (acid-catalyzed ma ọ bụ ọkụ na-arụ ọrụ).

Ngwa:

• Taya: ogige ndị dị n'akụkụ (na-eme ka nkwụsị nkwụsị, ASTM D624).

• Belt ụlọ ọrụ mmepụta ihe: eriri ebufe maka gburugburu okpomọkụ dị elu (dịka ọmụmaatụ, osisi ciment).

• Akụrụngwa mgbagha: Mpekere breeki (na-ejigide ọnụọgụ nke esemokwu na 0.35-0.45 n'okpuru 200°C).

• Ebe a na-emepụta ihe: Ndị na-ejikọta ájá isi (na-ebelata evolushọn gas n'oge nkedo).