Liquid polybutadiene

Liquid polybutadiene, also known as low molecular weight polybutadiene, is a type of low molecular weight polybutadiene that belongs to liquid rubber without functional groups, abbreviated as LPB. The following is detailed information about liquid polybutadiene:

1. Basic information

• definitionLiquid polybutadiene is a low molecular weight polybutadiene that belongs to liquid rubber without functional groups.

2. Physical properties

• appearanceColorless or red transparent liquid.

• viscosity: 2500~15000mPa. s.

• mass fraction ≥ 99.0%.

• Iodine value: 300-370.

3. Application Fields

• Toughening agentLiquid polybutadiene is commonly used as a toughening agent for epoxy resin adhesives to improve their toughness and impact resistance.

• Other applicationsDue to its extremely low glass transition temperature, excellent hydrolysis resistance, and electrical insulation properties, liquid polybutadiene is widely used in fields such as structural adhesives, electronics, and automotive sealants.

4. Domestic and foreign brands

• Foreign brandIncluding Butarez CT, HT (USA), Nisso PB (Japan), Poly/51 (Germany), XPRD-B241 (Canada), Huls (France), etc.

5. Safety and Environmental Impact

• toxicityHydroxyl terminated liquid polybutadiene has a significant irritant effect on the eyes and skin, and can cause chemical burns to the eyes and skin in severe cases. Inhalation or ingestion can cause respiratory or digestive toxicity reactions.

• Environmental hazardsHas certain toxicity to water and soil, and may cause harm to the ecological environment.

• Fire and explosion hazardsFlammable, can decompose and produce harmful gases when heated, posing a risk of fire and explosion.

6. Precautions

• During storage and transportation, corresponding safety regulations must be followed to avoid mixing with oxidants and acidic substances.

• When using liquid polybutadiene, ensure good ventilation in the operating environment and wear appropriate protective equipment.

7. Summary

Liquid polybutadiene, as an important liquid rubber, has a wide range of applications in industries such as rubber and adhesives. Its unique physical properties and chemical stability enable it to meet the needs of different fields. However, due to its toxicity and environmental hazards, special attention should be paid to safety and environmental issues when using it.