Rubber active agent Vulcanizing active agent tia hriat bawk a ni. Vulcanization accelerator active tirna atana hman thin inorganic emaw organic emaw a ni. Accelerator capacity a tipung thei a, accelerator a tih tlem theih bakah vulcanization hun a ti tawi thei bawk. Inorganic additives tam zawk hi metal oxide, hydroxide leh basic carbonate, zinc oxide, lead oxide, calcium hydroxide, lead carbonate, etc. te an ni a, organic additives-a thil pawimawh ber chu fatty acids a ni a, a dawttu chu amine, soaps, etc. te hian stearic acid aminec aminec stearate, zinc tha lo zawk, zinc te hi an hmang tlem zawk a ni. Rubber rit zawng.

Rubber Additives: A nihna leh a thatna leh a hman dan kimchang

1. Zinc Oxide (ZnO) a ni a, a man pawh a to hle.

Thil neih:

• A dum, a rimtui lo powder leh a specific gravity sang tak (5.6 g/cm3) a ni.

• Melting point: 1,975°C; A rilru a hah lutuk chuan a rilru a buai em em a. 2.008–2.029.

• Vulcanization activator angin reactivity sang tak a nei.

• UV-blocking leh antimicrobial property te a awm bawk.

A thatna:

• Sulfur vulcanization a ti chak zawk (curing hun hi 20–30% in a ti tlem).

• Mechanical property a ti tha zawk (tensile strength +15–25%, break at break +10–15%).

• FDA-in ei leh in lama hman tur atana a pawmpui (21 CFR 172.480).

• Environment friendly (non-toxic, recyclable) a ni.

Dilna: 1.1.

• Tires: Steel-belted radial tire ruang (rubber leh steel inkar a innghahna).

• Kekawrte: outsole compounds (abrasion do theihna a ti tha a, ASTM D5963: 50–80 mm3 hloh).

• Damdawi: surgical gloves (antimicrobial laka invenna, ASTM E2149).

• Adhesives: Rubber-to-metal bonding (peel chakna chu 30–40% in a tipung).

2. phenolic resin a ni a.

Thil neih:

• Crosslink density sang tak nei polymer thermosetting.

• Heat resistance: 180°C thleng hman chhunzawm zel (intermittent 250°C).

• Rigidity sang (Modulus: 2–4 GPA) leh a dimensional stability te a awm bawk.

• Acid, base leh solvent te laka chemical resistance.

A thatna:

• Structural reinforcement a pe a (hutakna chu 10–20 shore A-in a tipung a ni).

• Flame retardant (UL94 V-0 rating chu halogen additives tel lo a ni).

• Specialty thermoplastics nena khaikhin chuan a man tlawm zawk.

• Curing system siam danglam theih (acid-catalyzed emaw heat-activated emaw) a ni.

Dilna: 1.1.

• Tires: Sidewall compounds (Cut resistance a ti tha a, ASTM D624).

• Industrial belt: hmun sang tak tak awmna hmun (eg, cement plant) te tan conveyor belt siam a ni.

• Friction materials: brake pads (200°C hnuaiah 0.35–0.45-a friction coefficient a nei thei).

• Foundry: Core Sand Binders (Casting laiin gas evolution a ti tlem).