Blown film

The polymer is usually extruded into a tubular membrane billet, which is blown to the required thickness by high-pressure air in a good melt flow state and then formed into a thin film after cooling and shaping.
Linear low density polyethylene
Linear low density polyethylene (LLDPE) is a non-toxic, tasteless and odorless milky white particle with a density of 0.918~0.935g/cm3.It compared with LDPE, longchang petrochemical linear low density polyethylene with high softening temperature and melting temperature, has good strength and toughness, rigidity, heat resistance, cold resistance is good wait for an advantage, but also has good environmental stress cracking resistance, resistance to impact strength, tear strength and other properties, and acid, alkali, organic solvent and widely used in industry, agriculture, medicine, health and daily life supplies, and other fields.
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High density polyethylene
High density polyethylene (HDPE) is a white powder or granular product.Non-toxic, tasteless, crystallinity is 80% ~ 90%, softening point is 125 ~ 135℃, using temperature up to 100℃;Hardness, tensile strength and creep property are better than low density polyethylene.Longchang petrochemical high density polyethylene has good wear resistance, electrical insulation, toughness and cold resistance.Good chemical stability, at room temperature, insoluble in any organic solvents, acid, alkali and various salts corrosion resistance;The film has low permeability to water vapor and air and low water absorption;Aging resistance, environmental stress cracking resistance is not as good as low density polyethylene, especially thermal oxidation will make its performance decline, so the resin must be added antioxidant and uv absorbent to improve the shortage of this aspect.The thermal deformation temperature of hdPE film is low under the condition of stress, so attention should be paid in application.
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Low density polyethylene
Also known as high pressure polyethylene (LDPE), is the lightest variety of polyethylene resin, is milky white, tasteless, odorless, non-toxic, glossy waxy surface particles.The low density polyethylene of Longchang petrochemical has good softness, extensibility, electrical insulation, transparency, machinability and certain air permeability.Its chemical stability is good, alkali resistance, resistance to general organic solvents.
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Linear low density polyethylene

Product(GRADE)Melt mass flow rate,g/10minUsagePDF
0209AA0.8~1.2Agricultural filmDOWNLOAD
90470.6~1.1Agricultural film, shed filmDOWNLOAD
70421.7~2.3lining,Agricultural film,Packing film for daily useDOWNLOAD
7042N1.7~2.3Plastic film, jewelry packaging bags, coatingDOWNLOAD
7042H1.7~2.3lining,Agricultural filmDOWNLOAD
HPR1018HA0.7~1.3Shed film, plastic film, flexible packaging film, heavy packaging filmDOWNLOAD
EZP2010HA0.7~1.3Shed film, plastic filmDOWNLOAD
F218W1.7~2.2lining,Agricultural filmDOWNLOAD
35B1.8~2.2Agricultural filmDOWNLOAD

High density polyethylene

Product(GRADE)Melt mass flow rate,g/10minUsagePDF
60977~13Shopping bagsDOWNLOAD
6095H7~13Shopping bagsDOWNLOAD
5121B9~12.5Blowing film, packaging film, composite film, hollow blown filmDOWNLOAD
9455F10.15~0.30Handbag, packing filmDOWNLOAD

Low density polyethylene

Product(GRADE)Melt mass flow rate,g/10minUsagePDF
2426H2Agricultural film, greenhouse film, packaging film, logistics bag, etc., in the extrusion products also have a certain applicationDOWNLOAD
18D1.1-1.9Suitable for agricultural film, shed film and all kinds of general packaging filmDOWNLOAD
2426F0.6-0.9Health membraneDOWNLOAD
2426K4Suitable for all kinds of packaging film and high transparent filmDOWNLOAD
1810D0.20-0.40Used for processing pipe coating, coaxial cable insulation layer, heavy packing bag and heat shrink filmDOWNLOAD
2240H2.1-2.5Crosslinked cable insulation materialDOWNLOAD
LD26D0.24-0.36Medical injection bottle, infusion bag, infusion tube and syringe, etc.Mainly used to make ampoulesDOWNLOAD
18G6.2-7.8The inner and outer coating of the plastic woven bagDOWNLOAD
LD2517.2-8.8The inner and outer coating of the plastic woven bagDOWNLOAD

Industries and applications