Geomembrane is a polymer-based waterproof barrier material, mainly classified into low-density polyethylene (LDPE) geomembrane, high-density polyethylene (HDPE) geomembrane, and EVA geomembrane. It possesses excellent resistance to environmental stress cracking and chemical corrosion, a wide operating temperature range, and a long service life. It is widely used in landfills, tailings ponds, canals, seepage prevention, dam seepage prevention, and subway projects.
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ecuador Stretch film
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Product Description
1. Excellent tensile properties: It can be stretched and extended under the application of external force, usually several times the original length, and can still maintain good retraction and toughness after stretching.
2. Good self-adhesion: It can adhere to itself without the help of glue or other adhesives to form a tight package.
3. High transparency: It is convenient to see the condition of the packaged items clearly.
4. Puncture resistance: It can resist puncture from sharp objects and protect the internal items.
5. Light but strong: While providing effective protection, it will not add too much weight and volume.
Advantages
1. Improve packaging efficiency: Mechanical stretch packaging is fast, saving manpower and time.
2. Reduce packaging costs: Compared with traditional packaging materials, stretch film uses less and has lower costs.
3. Enhance cargo stability: Make the cargo more stable during transportation and storage, reducing the risk of damage.
4. Environmental protection: Recyclable and reduce pollution to the environment.
| Item Name | Standard Value | Typical Index | Testing Standard | |
| Tensile Strength Mpa | MD | ≥35 | 64 | ASTM D638 |
| TD | ≥25 | 32 | ||
| Tensile Strength Mpa | MD | ≥280 | 650 | |
| TD | ≥380 | 750 | ||
| Haze % | Thickness≤30μm | ≤5.0 | ≤2.3 | ASTM D1003 |
| 30μm | ≤8.0 | ≤4.5 | ||
| Heat Sealing Temperature ℃ | Heat Sealing Type | <145 | 122(≥8N) | / |
| Non-heat Sealing Type | ≥145 | / | / | |
| Surface Tension dyn/cm | Treatment Surface | ≥380 | ≥38 | ISO 8296 |
| Non-treatment Surface | <33 | / | ||
| Dynamic Friction Coefficient | / | / | 0.65-0.75 | ASTM D1984 |
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