LLDPE linear low-density polyethylene 
Full English name: Linear Low Density Polyethylene (LLDPE) 
CAS: 9002-88-4, HS code: 39011010 
>Synthesis: ethylene is copolymerized with a small amount of α - olefins (1-butene, 1-hexene, 1-octene) at low pressure. The main chain of the molecule is linear, with a large number of * * short branched chains * *, without the long branched chains like LDPE. It is one of the five most common plastics Tiktok encyclopedia. 
Physical and chemical indicators (general parameters for new aggregate materials) 
-Appearance: Milky white semi transparent cylindrical particles, non-toxic, odorless, and free of impurities 
-Density: 0.915-0.930 g/cm ³ 
-Melting point: 120-125 ℃ 
-Melt flow rate MFR (190 ℃/2.16kg): 0.2-20 g/10min (with significant differences among different grades) 
-Vicat softening point: 90-105 ℃ 
-Elongation at break:>500%, excellent toughness 
-Features: Low temperature resistance, chemical resistance, good electrical insulation; **It is much better than LDPE in terms of puncture resistance, tear resistance, and environmental stress cracking resistance; Disadvantages: Slightly lower gloss than LDPE, higher extrusion pressure when processed separately, often mixed with LDPE to improve processability 
Simple comparison: 
>LDPE: Soft, good gloss, poor tear resistance 
>LLDPE: Strong toughness, puncture resistance, and tear resistance (the main force of the film) 
>HDPE: high rigidity and hardness 
core performance 
1. Excellent tear resistance, puncture resistance, and impact resistance. The film can be made thinner to reduce material costs 
2. Good low-temperature resistance and toughness, not easily brittle at low temperatures 
3. Acid and alkali resistance, resistance to most organic solvents, good chemical stability 
4. Excellent electrical insulation performance 
5. It can be blown film, injection molding, rotational molding, extrusion molding; Recyclable and Recyclable 
Main purpose (commonly used in foreign trade) 
1. Thin film (maximum application, accounting for about 70%) 
-Stretch film, heavy-duty packaging film, food packaging film, garbage bag, inner liner bag 
-Agricultural film: greenhouse film, plastic film, silage film 
2. Roll molded products 
Large water storage tanks, chemical storage tanks, floating bodies, plastic yachts, amusement facilities (LLDPE is the preferred raw material for rotational molding) 
3. Injection molded products 
Plastic containers, bottle caps, hoses, household plastic products 
4. Wires and cables 
Cable insulation layer and sheath material 
5. Geotechnical field 
Anti seepage geomembrane, waterproof isolation membrane