Rubber active agent tseem hu ua vulcanizing active agent. Ib qho inorganic lossis organic tshuaj siv los ua kom lub vulcanization accelerator nquag nquag. Nws tuaj yeem ua kom lub peev xwm ntawm lub accelerator, txo tus nqi ntawm cov accelerator, thiab txo lub sijhawm vulcanization. Feem ntau ntawm cov inorganic additives yog hlau oxides, hydroxides thiab yooj yim carbonates, xws li zinc oxide, lead oxide, calcium hydroxide, lead carbonate, thiab lwm yam, qhov tseem ceeb tshaj plaws nyob rau hauv cov organic additives yog fatty acids, ua raws li amines, soaps, thiab lwm yam xws li stearic acid, dibutyloleic acid amine, zinc stearate tsawg tshaj li ntawm 5%.

Roj Hmab Additives: Paub meej cov khoom, qhov zoo, thiab kev siv

1. Zinc Oxide (ZnO)

Khoom:

• Dawb, tsw ntxhiab hmoov nrog lub ntiajteb txawj nqus siab (5.6 g / cm³).

• Melting point: 1,975 ° C; Refractive Index: 2.008–2.029.

• Siab reactivity li vulcanization activator.

• UV-blocking thiab antimicrobial zog.

Qhov zoo:

• Accelerates sulfur vulcanization (txo lub sij hawm kho los ntawm 20-30%).

• Txhim kho txhua yam khoom (lub zog tensile + 15-25%, elongation ntawm so + 10-15%).

• FDA-pom zoo rau daim ntawv thov zaub mov (21 CFR 172.480).

• Ib puag ncig tus phooj ywg (non-toxic, recyclable).

Daim ntawv thov:

• Cov log tsheb: steel-belted radial log tsheb carcasses (txhim kho adhesion ntawm roj hmab thiab hlau).

• Nkawm khau: Outsole compounds (txhim kho puas, ASTM D5963: 50-80 mm³ poob).

• Kev Kho Mob: Cov hnab looj tes phais (antimicrobial tiv thaiv, ASTM E2149).

• Adhesives: Rubber-rau-hlau bonding (nce tev lub zog los ntawm 30-40%).

2. Phenolic resin

Khoom:

• Thermosetting polymer nrog siab crosslink ceev.

• Kev tiv thaiv tshav kub: Kev siv txuas ntxiv mus txog 180 ° C (nruam 250 ° C).

• High rigidity (modulus: 2-4 GPa) thiab seem stability.

• Tshuaj tiv thaiv rau acids, bases, thiab cov kuab tshuaj.

Qhov zoo:

• Muab cov qauv kev txhawb zog (nce hardness los ntawm 10-20 Shore A).

• Nplaim hluav taws xob (UL94 V-0 qhov ntsuas tsis muaj halogen additives).

• Nqi-zoo piv rau cov thermoplastics tshwj xeeb.

• Customizable curing systems (acid-catalyzed lossis kub-activated).

Daim ntawv thov:

• Cov log tsheb: Sidewall compounds (txhim kho kev txiav, ASTM D624).

• Cov Kev Siv Hluav Taws Xob: Conveyor siv rau qhov chaw kub thiab txias (xws li cov nroj tsuag cement).

• Cov ntaub ntawv sib txhuam: Cov ntaub thaiv npog (tseem coefficient ntawm kev sib txhuam ntawm 0.35-0.45 hauv qab 200 ° C).

• Foundry: Core xuab zeb binders (txo roj evolution thaum casting).