1. Product Introduction & Main Application
Arnico’s Butene-1 is a linear alpha-olefin with a four-carbon chain and a double bond in the alpha position, supplied as a liquefied gas under pressure. This valuable monomer is primarily used as a comonomer in the production of High-Density Polyethylene (HDPE) and Linear Low-Density Polyethylene (LLDPE) to create short-chain branches, thereby dramatically improving the mechanical properties of films and pipes.
2. Technical Specifications
| Technical Parameter | Polymer Grade | High Purity Grade | Unit |
|---|---|---|---|
| Purity (1-Butene) | ≥ 99.3 | ≥ 99.8 | % |
| Isobutylene | ≤ 0.2 | ≤ 0.05 | % |
| Butadiene | ≤ 20 | ≤ 5 | ppm |
| Propylene | ≤ 50 | ≤ 20 | ppm |
| Total Sulfur | ≤ 1 | ≤ 0.5 | ppm |
| Water | ≤ 20 | ≤ 10 | ppm |
| Liquid Density (20°C) | ≈ 0.59 | ≈ 0.59 | kg/L |
3. Features & Benefits
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Ideal Polyethylene Comonomer: Creates short ethyl branches on the main polymer chain, improving toughness, Environmental Stress Crack Resistance (ESCR), and film clarity.
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Exceptional Polymer Purity: Free from catalyst poisons for Ziegler-Natta and metallocene catalysts, such as isobutylene and diolefins.
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Controlled Reactivity: Provides a balanced copolymerization rate with ethylene, ensuring a uniform distribution of branches.
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Synthesis Raw Material: A route for producing butylene oxide, butanol, and other value-added chemical intermediates.
4. Industrial Applications
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Polyethylene Production: The primary comonomer in LLDPE units (for packaging, stretch, and greenhouse films) and HDPE units (for water and gas pipes).
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Polybutene-1 Production: A polymer with high thermal resistance, ideal for hot-water pipes.
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Chemical Industry: The synthesis of butanols, maleic anhydride, and other intermediates.
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Fuel & Energy: Blending into gasoline alkylate pools.
5. Safety & Handling
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MSDS (Material Safety Data Sheet): This gas is highly flammable and forms explosive mixtures with air. Inhalation causes dizziness and asphyxiation. The Arnico MSDS file must be obtained.
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Storage Conditions: Store in pressurized spherical tanks or cold storage tanks, in a cool, highly ventilated environment, away from sparks, heat, and oxidizers.
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Personal Protective Equipment (PPE): The use of anti-static clothing, anti-spark shoes, and a suitable respirator is mandatory when handling.
6. Quality Assurance & COA
Arnico Butene-1 shipments are accompanied by a Certificate of Analysis (COA) with a precise Gas Chromatography analysis.
