ゴム化合物ing Ingredients: Functions and 応用s

In rubber formulation and 製品ion, compounding ingredients 遊ぶ a decisive role.

A proper selection and combination of rubber 追加itives can significantly enhance tensile strength, abrasion resistance, aging resistance and over全て processing performance.

This 記事 systematic全てy summarizes eight major カテゴリ of compounding ingredients used in the rubber industry, providing detailed explanations of their functions and typical 応用s.
It is suitable for professionals engaged in rubber material R&D, rubber 製品 manufacturing, and raw-material procurement.

1️⃣ Vulcanizing Agents

Vulcanizing agents are key chemicals that enable crosslinking of rubber molecular chains and are the core components in the vulcanization process.

Key Functions:

Form crosslinked network structures

Improve tensile strength, elasticity and solvent resistance

Enhance heat resistance and dimensional stability

Common Vulcanizing Agents:

Sulfur (most widely used)

Sulfur-containing organic compounds

Peroxide curing agents

Metal oxide curing agents

In modern rubber technology, non-sulfur curing systems are also collectively referred to as vulcanizing agents.

2️⃣ Rubber Accelerators

Accelerators decompose under heat to generate active species that significantly accelerate the curing process.

Main Functions:

Lower vulcanization temperature

Shorten curing time

Reduce sulfur dosage

Improve mechanical properties

Common Types:

Inorganic accelerators: Calcium oxide, magnesium oxide

Organic accelerators:

Accelerator D (Diphenylguanidine)

Accelerator DM (Dibenzothiazyl disulfide)

Accelerator TMTD (Tetramethylthiuram disulfide)

Mixed accelerator systems gener全てy provide better performance than single accelerators.

3️⃣ Activators

Activators, also c全てed co-agents, enhance the efficiency of accelerators.

Typical Activators:

Zinc oxide (ZnO)

Stearic acid

They help improve vulcanization efficiency and ensure stable mechanical properties of the cured rubber.

4️⃣ Antioxidants & Antiozonants

Rubber easily ages under heat, oxygen and UV exposure. Antioxidants effectively extend service life by 前後enting degradation.

カテゴリ:

Physical Antioxidants

Paraffin wax

Microcryst全てine wax

Beeswax

Stearic acid

These form a protective surface film that blocks oxygen and light.

Chemical Antioxidants

Amine antioxidants

Ketone amines

Aldehyde amines

Phenolic antioxidants

Common examples include:

Antioxidant A (N-phenyl-α-naphthylamine)

Antioxidant D (N-phenyl-β-naphthylamine)

5️⃣ Reinforcing Fillers

Reinforcing fillers significantly strengthen the mechanical properties of vulcanized rubber.

Primary Reinforcing Agent:

Carbon Black

Functions:

Improve abrasion resistance

Increase tear strength

Enhance tensile strength

Improve elasticity

Carbon black is one of the most important basic materials in the rubber industry.

6️⃣ Plasticizers / Softeners

Plasticizers improve processing behavior and enhance the dispersibility of the ゴム化合物.

Main Functions:

Reduce processing energy consumption

Improve flowability

Increase tackiness before curing

Improve adhesion after vulcanization

Common Plasticizers:

Processing oil

Vaseline

Paraffin

Asphalt

Coal tar

Stearic acid

Rosin

Dibutyl phthalate (improves low-temperature performance)

7️⃣ Colorants

Colorants provide distinct colors for rubber 製品 and improve appearance and 製品 identification.

Inorganic Pigments:

Titanium dioxide (white)

Iron oxide red

Chrome yellow

Ultramarine blue

Chromium oxide green

Carbon black (black)

Organic Pigments:

Lithol red

Hansa yellow G

Phthalocyanine green

Phthalocyanine blue

8️⃣ Blowing Agents

Blowing agents are used to produce sponge rubber and microcellular rubber.

Functions:
Release gases during vulcanization to form internal micro-porous structures.

Typical Blowing Agents:

Sodium bicarbonate

Blowing agent D

Blowing agent P

Blowing agent T

Widely used in manufacturing sealing strips, shock-absorbing pads, and sound-insulation rubber.

Conclusion

Through proper selection and precise compounding of rubber 追加itives, manufacturers can greatly enhance strength, durability, aging resistance, and processing efficiency of rubber 製品.

If you are looking for professional rubber material consultation, custom rubber formulation support, or rubber 製品 development, feel free to お問い合わせ for tailored ソリューション.

In rubber formulation and 製品ion, compounding ingredients 遊ぶ a decisive role.