Overview
EVOH EW-3201 is a thermoplastic high-barrier resin with excellent barrier properties, transparency, and formability. It is an ideal raw material for packaging materials, automotive fuel tanks, and piping.
General properties
Product name: 32 mol% Ethylene-VinylAlcohol Copolymer
| Items | Specifications | |||
| Appearance | White transparent particle | |||
| Melting index (190℃,2160g/10min) | 1.5-2.5 | |||
| Chroma | ≤20 | |||
| Volatile content(%) | ≤0.3 | |||
| Ethylene(mol%) | 30.0-34.0 | |||
| Density (g/cm3) | 1.10-1.20 | |||
Technical Data of EVOH EW-3201
|
Typical Properties |
Unit |
TestMethod |
Metric |
|
MFR |
g/10min |
ISO1133(190°℃) |
1.8 |
|
Density |
10³kg/m³ |
ISO1183-3 |
1.19 |
|
Thermal Properties |
Unit |
Test Method |
Metric |
|
Melting Temperature |
℃(°F) |
ISO 11357 |
183 |
|
Crystallization Temperature |
℃(°F) |
ISO 11357 |
162 |
|
Glass Transition Point |
℃(°F) |
ISO 11357 |
61 |
|
Vicat Softening Point |
℃(°F) |
ISO 306 |
110 |
|
Mechanical Properties |
Unit |
Test Method |
Metric |
|
Tensile stress atbreak |
MPa |
ISO 527 |
45 |
|
Elongation atbreak |
% |
ISO 527 |
12 |
|
Young's Modulus |
GPa |
ISO 527 |
3.4 |
|
Flexural Modulus |
GPa |
ISO 178 |
4.4 |
|
Charpy Impact Strength |
kJ/m² |
ISO 179-1 |
2.7 |
|
Rockwell Hardness |
HRM |
ISO 2039-2 |
83 |
|
BarrierProperties(cast film) |
Unit |
Test Method |
Metric |
|
Oxygen Transmission Rate |
cm³20μm/m².da(20°℃,20%RH) |
ISO 14663-2 AnnexC |
0.14 |
|
Typical properties:These are not to be construed as specifications. |
|||
Applications:
1. Packaging materials: This series of products is widely used in packaging of food, medicine, daily chemicals, etc. due to its excellent gas barrier properties and transparency.
2. Pipe materials: This series of products has excellent processing, molding, oxygen barrier and other properties, and can be used for oxygen barrier floor heating pipes, etc., playing a role in creating a comfortable living space.
3. Automobile fuel tanks: This series of products has excellent oil resistance, solvent barrier and other properties, and is an ideal material for manufacturing automobile fuel tanks and other containers.
Packages:
Packages:20 kg/bag,25 kg/bag, 800kg/bag.
Storage:
Store in accordance with local regulations on safe storage of chemical products.
Store in a dry, well-ventilated place. Stay away from hot objects, sparks, and other sources of ignition.
Frequently Asked Questions (FAQ)
Q: What is EVOH？
A: EVOH (Ethylene Vinyl Alcohol Copolymer) is a formal copolymer of ethylene and vinyl alcohol. It is globally recognized for its exceptional barrier properties against gases such as oxygen, nitrogen, carbon dioxide, and helium, as well as organic solvents and odors.
Q: Can EVOH multi-layer packaging be recycled in standard recycling streams?
A: Yes. While EVOH itself is a specialized barrier polymer, multi-layer polyolefin structures containing low percentages of EVOH (typically < 5% by weight) are certified as recyclable within existing PE/PP recycling streams according to global sustainability guidelines (such as RecyClass and APR).
Q: How do humidity and water exposure impact EVOH's barrier properties?
A: EVOH contains hydroxyl (-OH) groups, making it hydrophilic. Under high-humidity conditions (RH > 80%), moisture absorption acts as a plasticizer, causing the polymer chain to expand and reducing its oxygen barrier effectiveness.
Overview EVOH EW-3201 is a thermoplastic high-barrier resin with excellent barrier properties, transparency, and formability. It is an ideal raw material for packaging materials, automotive fuel tanks, and piping.
Overview EVOH EW-3801 is an ethylene-vinyl alcohol copolymer that can also be used as a high-barrier material. It can be used to produce high-oxygen barrier films, sheets, and packaging containers.
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