Before we get started, let’s get to know HDPE. These basic understandings are necessary. It can give you a better understanding of HDPE. At the same time, it can also help you know why you should choose HDPE as a blow molding material.
Full English name: High Density Polyethylene
English abbreviation: HDPE
Commonly known as: low pressure ethylene
Basic characteristics: High-density polyethylene is an opaque white powder or granular product, odorless; Soft and flexible.
HDPE (High density polyethylene) is a thermoplastic polymer polymerized from ethylene monomer, which is widely used for its high crystallinity and high strength. It is a translucent to opaque white solid with excellent chemical resistance, mechanical strength and processability. Due to its tight structure, HDPE is the material of choice in many industries, especially in blow molding processes.
HDPE has a linear molecular structure with few branched chains, so it has a higher density than low-density polyethylene (LDPE). Its melting point is between 130-137°C and its melting index is low, giving it excellent heat resistance and processing stability.
Physical properties of HDPE
The physical characteristics of HDPE enable it to maintain stable performance in different application environments. Here are some of the key features of HDPE:
1. High tensile strength: HDPE has excellent tensile strength, making it difficult to deform or break when subjected to pressure and tensile forces.
2. Chemical resistance: It can resist acid, alkali, salt and many organic solvents, so it is suitable for chemical containers, pipelines and other applications.
3. Low water absorption: HDPE absorbs almost no water and therefore maintains stable mechanical properties in wet environments.
4. High low temperature resistance: even in a low temperature environment of minus 40°C, HDPE still maintains good toughness and is not easy to crack.
5. Recyclability: HDPE is one of the recyclable plastics, which meets environmental requirements and can be recycled many times.
Main advantages
1. Insoluble in any organic solvent at room temperature;
2. The hardness, tensile strength, rigidity and creep are better than low density polyethylene;
3. Acid and alkali resistance, wear resistance, organic solvent resistance, excellent electrical insulation, good chemical stability;
4. Surface hardness, tensile strength, mechanical strength are higher than LDPE.
5. Widely used in chemical storage and transportation.
The main application areas of HDPE
Due to its excellent physical and chemical properties, HDPE is used in a wide range of industries, including:
Suitable for making storage tanks, chemical containers, mechanical parts, etc. HDPE sheets and bars are widely used as components of industrial equipment.
2. Pipeline system
Because of its corrosion resistance, HDPE pipes are used in water supply, drainage, natural gas transmission and other fields. Its good flexibility and impact resistance make it the preferred material for municipal pipeline construction.
3. Agricultural applications
Used in the production of agricultural film, irrigation pipe, pesticide packaging. Because of its strong weather resistance, it can be used in harsh weather conditions for a long time.
4. The automobile industry
Because of its light weight and high strength, HDPE is used in automotive fuel tanks, fenders and other components. Its chemical resistance also makes it suitable for automotive piping systems.
5. Daily Necessities
Used in the production of garbage cans, storage boxes, children’s toys, etc. Its non-toxicity and good durability make it ideal for household products.
Used in the production of roadblocks, traffic guardrail and so on. HDPE is not only lightweight, but also resistant to impact and corrosion, and can withstand the challenges of long-term exposure to harsh environments.
Why choose HDPE as blow molding material? What are its advantages? Don’t worry, we’ll spell it out for you in plain language so you can quickly understand what makes it unique.
When choosing raw materials for production, manufacturers often need to make a trade-off between price and quality. Everyone wants to find raw materials that are both economical and reliable, but the reality is that high-quality materials usually mean higher costs. This contradiction puts many enterprises in a difficult position when purchasing. HDPE, however, solves this problem well. It not only has excellent physical properties, but also has a very high cost performance. Compared to other plastics, the production cost of HDPE is lower, while ensuring the stability and durability of the material. This means that companies do not have to make difficult trade-offs between quality and cost, but are able to obtain high-quality raw materials at more affordable prices.
1. Economy: HDPE relatively low cost, cost-effective. Less waste in the production process, improve material utilization.
2. Consistency and repeatability: Due to the stability of the HDPE melting index, the molding product size is accurate and the quality is consistent.Suitable for mass production to meet industrial needs.
3. Wide applicability: suitable for manufacturing buckets, oil drums, chemical storage containers, etc. Can be used for small, medium and large blow molding products.
4. Convenient and lightweight: HDPE can float in water. Therefore, HDPE is popular because of its light weight.
5. Durable, long life: HDPE has crack resistance. Can extend the life of blow molding products. The corrosion resistance of HDPE can be widely used in various industries. It maintains its performance in all weather conditions.
Shandong Great Machinery Co., Ltd. recommends customers to use high density polyethylene (HDPE) as blow molding raw materials in the operation of blow molding machine production process. This recommendation is especially applicable to the production of industrial grade blow molding products such as buckets and pallets. Our customers, after using our blow molding equipment and using HDPE material for production, generally give positive comments, saying that the products produced are of high quality. In order to ensure the durability of the product, it is recommended to avoid using raw materials of other qualities.
In the production process, the use of recyclable raw materials can significantly reduce raw material costs, thereby improving economic efficiency. HDPE is a material that can achieve this purpose.
As a sustainable resource, HDPE is a widely used recycled resin. This means that you can use recycled HDPE for production. The durability, robustness and versatility of recycled HDPE are almost the same as new materials.
If you are looking for stable and reliable blow molding machine equipment, Shandong Great Machinery Co., Ltd. is undoubtedly your most ideal partner. If you are looking for high quality and reliable blow molding machine equipment, please feel free to contact us, we will be happy to provide you with the best quality products and services!