Ethylene-vinyl alcohol copolymer (EVOH)
Ethylene-vinyl alcohol copolymer (EVOH): Combining the processability of ethylene polymer with the barrier effect of ethylene alcohol polymer, ethylene-vinyl alcohol copolymer
not only shows excellent processing performance, but also shows excellent blocking effect on gas, odor, fragrance, solvent, etc.Due to its thermal stability in combination with ethylene, multilayer containers containing EVOH barrier layers are completely reusable.
It is these features that enable plastic containers containing EVOH barrier layers to replace many glass and metal containers in food packagingEVOH has been the most used material of high barrier property. The material of film type besides non stretch, and two-way stretch type, aluminum evaporation, glue coating, etc., two-way stretch type and
heat type used in aseptic packaging products.
EVOH barrier performance depends on the content of ethylene in general when ethylene content, gas barrier property to drop, but easy to processing.
1.EVOH high gas barrier functional resin can isolate oxygen to prevent the deterioration of content items. Therefore,
EVOH is widely
2.used in mayonnaise, ketchup and other food packaging materials. In addition, this product is also used in plastic fuel tank,
whichplays a positive role in preventing the leakage of reducing the weight of the vehicle. In the construction field, it is used
toreplace metal floor heating pipes, and the demand is gradually expanding in areas other than food packaging.
3. Food packaging materials
4. Household products packaging materials
5.Automobile fuel tank
6. Floor heating pipe
7. wallpaper
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EVAL™ F171B
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32 mol% Ethylene-Vinyl Alcohol Copolymer
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Typical Properties
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Unit
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Test Method
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Metric/(English)
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MFR
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g/10min
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ISO1133 (190¡ãC)
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1.6
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Density
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10³ kg/m³
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ISO1183-3
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1.19
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Thermal Properties
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Unit
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Test Method
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Metric/(English)
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Melting Temperature
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¡ãC (¡ãF)
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ISO 11357
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183 (361)
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Crystalization Temperature
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¡ãC (¡ãF)
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ISO 11357
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158 (316)
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Glass Transition Point
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¡ãC (¡ãF)
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ISO 11357
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60 (140)
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Vicat Softening Point
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¡ãC (¡ãF)
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ISO 306
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172 (342)
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Mechanical Properties
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Unit
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Test Method
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Metric/(English)
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Tensile stress at break
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MPa (psi)
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ISO 527
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34 (4,900)
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Elongation at break
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%
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ISO 527
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14
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Young's Modulus
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GPa (psi)
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ISO 527
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4.5 (650,000)
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Flexural Modulus
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GPa (psi)
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ISO 178
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4.3 (620,000)
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Charpy Impact Strength
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kJ/m² (ft.lbf/in2)
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ISO 179-1
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7 (3.3)
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Rockwell Hardness
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HRM
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ISO 2039-2
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92
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Barrier Properties (cast film)
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Unit
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Test Method
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Metric/(English)
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Oxygen Transmission Rate
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cm³.20µm/m².day.atm
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ISO 14663-2 Annex C
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0.3 (0.015)
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1.Packing:
25kg/bag, or per your requirement.18mt-20mt /20'FCL
2.Storage:
The resin should be stored in a drafty, dry warehouse and away from fire and direct sunlight. It should not be piled up in the open air.
3.Transportation:
During transportation, the product should not be exposed to strong sunlight or rain and should not be transported together with sand, soil, scrap metal, coal or glass. Transportation together with toxic, corrosive and flammable substance is strictly prohibited.
During transportation, the product should not be exposed to strong sunlight or rain and should not be transported together with sand, soil, scrap metal, coal or glass. Transportation together with toxic, corrosive and flammable substance is strictly prohibited.
