Injection molding plastic material: HDPE
author: Universe plastic
2024-01-11
HDPE (high-density polyethylene) is a commonly used injection molding material. It is widely used in various injection molding products due to its excellent physical and chemical properties. It is one of the plastic materials with the largest production capacity and the largest consumption among synthetic plastics.
HDPE is made from the copolymerization of ethylene. It is a highly crystalline, non-polar thermoplastic. It is usually milky white and has a certain degree of translucent waxy solid in thin sections.
HDPE material types and performance parameters for injection molding
|
General Purpose HDPE |
High Flow HDPE |
High Strength HDPE |
High Impact HDPE |
Food Grade HDPE |
Environmental Stress Crack Resistant HDPE |
|
|
density |
0.941 - 0.965 g/cm³ |
0.945 - 0.960 g/cm³ |
0.950 - 0.965 g/cm³ |
0.945 - 0.960 g/cm³ |
0.945 - 0.960 g/cm³ |
0.940 - 0.955 g/cm³ |
|
Melt Index (MI) |
0.1 - 10 g/10min |
>10 g/10min |
0.2 - 1 g/10min |
0.3 - 3 g/10min |
0.2 - 2 g/10min |
0.2 - 1 g/10min |
|
Tensile Strength |
20 - 31 MPa |
20 - 30 MPa |
>30 MPa |
20 - 30 MPa |
20 - 30 MPa |
18 - 28 MPa |
|
Elongation at break |
>600% |
>400% |
>500% |
>700% |
>600% |
>500% |
|
Vicat softening point |
120°C |
118°C |
122°C |
120°C |
120°C |
118°C |
*The above data comes from online search statistics.
HDPE material characteristics
1. High strength and rigidity
HDPE has high strength and rigidity and is suitable for making products that need to withstand a certain load.
2. Resistant to chemical corrosion
HDPE has good corrosion resistance to a variety of chemicals, has a long service life, and is suitable for various environments.
3. Good impact resistance
HDPE has good impact resistance over a wide temperature range and is not easy to break.
4. Low water absorption
HDPE has very low water absorption, making it stable in humid environments.
5. Good electrical insulation performance
HDPE has excellent electrical insulation properties and is suitable for housings and insulating parts of electrical and electronic equipment.
6. Good processing performance
HDPE is easily processed through injection molding, extrusion, blow molding and other processes.
7. Low material cost
HDPE has relatively low cost, is suitable for mass production, and is economical and practical.
8. Environmentally friendly and recyclable
HDPE is a recyclable material that helps reduce environmental pollution and meets environmental protection requirements.
Injection molding applications of HDPE materials
1. Packaging materials: bottle caps, bottles, barrels, containers, food packaging, beverage packaging, chemical packaging.
2. Transportation pipelines: water supply pipes, drainage pipes, and gas pipes.
3. Daily necessities: toys, household items, storage boxes, garden supplies.
4. Agricultural tools: agricultural films, irrigation pipes.
5. Electrical equipment: cable insulation layer, electronic equipment shell, etc.
Summarize
HDPE materials are divided into various types according to their different performance characteristics and can be adapted to the injection molding production of many plastic products.
Dongguan Universe Plastic Factory has more than 15 years of injection molding experience. It has a professional mold design, manufacturing and injection molding team. It provides professional and cost-effective HDPE material injection molding services, free product design and proofing.
If you are looking for an HDPE material injection molding supplier, please contact us to get the latest injection molding quotation.
Injection Mold Design: Plastic Parting Line
Universal Plastics Custom Injection Molding
Related Article
Universal Plastics refer to plastics with large output, low price and wide range of applications. They mainly include five major varieties: polyolefin, polyvinyl chloride, polystyrene, phenolic plastics and amino plastics.
Universal Plastics Custom Injection Molding
Generally speaking, P20 mold steel is a good choice. However, the output of plastic parts is high, the shape is complex, and precision is extremely important, so 718H mold steel may be a better choice.
What is the difference between P20 mold steel and 718 mold steel ?
Plastic thermoforming and injection molding are the two most common manufacturing processes used in the production of plastic products, and both offer unique advantages depending on the specific application.
Thermoforming and Injection Molding Plastic Manufacturing
We provide customized production of various plastic clips. The price of plastic clips produced through the injection molding process will be very low. Welcome to consult.
Custom POM Plastic Clips by Injection Molding Process
Reduce the injection molding flash produced during injection molding and improve the quality and appearance of the product.
Injection molding problem: plastic burrs
The global injection molding market is full of opportunities and challenges, and industry players need to be flexible in responding to market changes. Meet changing market demands through continuous innovation, green production and adaptive strategies.
New opportunities and challenges in the injection molding industry
Get a free online quote today!