Factory Price 32%Mol Ethylene-Vinyl Alcohol Copolymer/EVOH/Plastic Materials

• Feature: Photodegradable
• CAS No.: 25067-34-9
• Formula: (C2h4o-C2h4)X
• Usage: General Plastics, Specialty Plastics
• Plastic Properties After Heated: Thermoplastic Plastics
• Plastic Forming Method: Extrusion
• Model NO.: hsm
• Color: White
• Shipment Size: 18mt/20′fcl
• Application: Food Package.Pipeline
• Transport Package: 20kg/Bag
• Trademark: HSM
• Origin: China
• Production Capacity: 10000mt/Year

Product Description

factory price 32%mol ethylene-vinyl alcohol copolymer/EVOH/Plastic materials
 

Full Name: Ethylene-Vinyl Alcohol copolymer

Other Equal brand: Kuraray.ChangChun;Nippon Gohsei

Short Name: EVOH

Packing: 20kg/bag
 

Ethylene vinyl alcohol (EVOH) is a copolymer of ethylene and vinyl alcohol. Because the latter monomer mainly exists as its tautomerthe copolymer is prepared by polymerization of ethylene and  to give the (EVA) copolymer followed by hydrolysis. EVOH copolymer is defined by the mole % ethylene content: lower ethylene content grades have higher barrier properties; higher ethylene content grades have lower temperatures for extrusion.

The plastic resin is commonly used as an oxygen barrier in food packaging. It is better than other plastics at keeping air out and flavors in, is highly transparent, weather resistant, oil and solvent resistant, flexible, moldable, recyclable, and printable. Its drawback is that it is difficult to make and therefore more expensive than other food packaging. Instead of making an entire package out of EVOH, manufacturers keep costs down by coextruding or laminating it as a thin layer between cardboard, foil, or other plastics.

It is also used as a hydrocarbon barrier in plastic fuel tanks and pipes.

Application:

(1)Industrial application: Gas Tank(Fuel Tank).Underfloor heating pipes.Pipeline.Pesticide bottle.underfloor heating pipes.cosmetic bottle
(2)Food package:Due to its strong barrier against oxygen and gas, food packaging manufacturers use EVOH in their packaging structure to extend the shelf life of food products.Food film.Wire bags.
(3)Medical Application:EVOH is used in a liquid embolic system in interventional radiology, e.g. in Onyx.Dissolved in dimethyl sulfoxide (DMSO) and mixed with a radiopaque substance, ethylene vinyl alcohol copolymer is used to embolize blood vessels.

Product Picture:
                     
Specification Data:

(1) HSM-3201

Typical Properties	Unit	Test Method	Metric
MFR	g/10min	ISO1133 (190°C)	1.8
Density	10³ kg/m³	ISO1183-3	1.19
Thermal Properties	Unit	Test Method	Metric
Melting Temperature	°C (°F)	ISO11357	183
Crystalization Temperature	°C (°F)	ISO11357	162
Glass Transition Point	°C (°F)	ISO11357	61
Vicat Softening Point	°C (°F)	ISO306	110
Mechanical Properties	Unit	Test Method	Metric
Tensile stress at break	MPa	ISO527	45
Elongation at break	%	ISO527	12
Young's Modulus	GPa	ISO527	3.4
Flexural Modulus	GPa	ISO178	4.4
Charpy impact Strength	kJ/m²	ISO179-1	2.7
Rockwell hardness	HRM	ISO2039-2	83
Barrier Properties(cast film)	Unit	Test Method
Oxygen Transmission rate	cm³.30µm/m².d (20°C,0%RH)	ISO 14663-2 AnnexC	0.14

(2)HSM-3801
 

Typical Properties	Unit	Test Method	Metric
MFR	g/10min	ISO1133 (190°C)	1.8
Density	10³ kg/m³	ISO1183-3	1.16
Thermal Properties	Unit	Test Method	Metric
Melting Temperature	°C (°F)	ISO11357	173
Crystalization Temperature	°C (°F)	ISO11357	152
Glass Transition Point	°C (°F)	ISO11357	57
Vicat Softening Point	°C (°F)	ISO306	103
Mechanical Properties	Unit	Test Method	Metric
Tensile stress at break	MPa	ISO527	32
Elongation at break	%	ISO527	17
Young's Modulus	GPa	ISO527	3.1
Flexural Modulus	GPa	ISO178	3.6
Charpy impact Strength	kJ/m²	ISO179-1	2.1
Rockwell hardness	HRM	ISO2039-2	89
Barrier Properties(cast film)	Unit	Test Method
Oxygen Transmission rate	cm³.30µm/m².d (20°C,0%RH)	ISO 14663-2 AnnexC	0.64