Introduction
Nowadays, there are various products around us that are made of plastic, especially HDPE BL3 granules. In fact, it can be said that products such as plastic containers, bottles, bags, and all kinds of plastic toys are considered to be products that you can clearly see around you.
Meanwhile, the common feature of all these products is that one of the most important materials used for their production is plastic. The mentioned plastic products are usually made of granules, in this regard, in order to examine the granules, it should be mentioned that granules are one of the most popular thermoplastic materials that have many applications in industries today.
Currently, there are different types of granules, each of these models has specific grades. Each of these grades has unique uses and features, and this has increased their usage rate. In this article, we intend to introduce you to BL3 granules and state what points you should pay attention to if you intend to buy BL3 granules.
Granule Description and Production Process
Granule is a light and resistant thermoplastic that has a variable crystal structure and is used in various industries. This polymer is considered one of the most widely used plastics in the world and annually, according to statistics, we see the production of tens of millions of tons of granules all over the world. This issue shows the importance of this article.
In various industries, according to the needs of customers, granules are used to make various products such as films, pipes, all kinds of plastic parts, packaging materials, car parts, electric cables, etc.
In line with the examination of the types of granules, it should be said that these products are classified into different groups based on their density and branching. Among the most common types of granules available in the market, the following can be mentioned:
- Low density branch model granule
- Linear granules with low density
- High density branch model granule
- Very high molecular weight granule
- Cross granule
In addition to the mentioned items, which are among the most common types of granules, granules are produced in other models, which include the following models:
- Medium density granules
- Very low-density granule
- High molecular weight granules
- Very low molecular weight granules
- Chlorine granules
Granulated HDPE BL3 Description
HDPE is a polymer made from the monomer ethylene, with the chemical formula ( (C_2H_4)_n ). HDPE BL3 would share this base chemical composition but may have specific additives or processing conditions to meet particular specifications.
HDPE BL3 specifically refers to a grade of High-Density Polyethylene (HDPE) that is designated as BL3. HDPE is a commonly used polymer known for its high strength-to-density ratio. The “BL3” designation usually refers to a specific grade or formulation of HDPE tailored for certain applications, often with enhanced properties compared to standard HDPE.
bl3 is one of the types of air granules that are in the category of high-density products. In order to get acquainted with BL3 granule, you should know that this product is a cheap thermoplastic that has a linear structure with little branching. One of the most important features of this product is that its production process is carried out at a certain temperature and pressure. The temperature required to produce this category of products is between 70 and 300 degrees Celsius, and the pressure required to produce this product is between 10 and 80 bar.
Key Differences from General HDPE
- Enhanced ESCR: BL3 grade has higher environmental stress crack resistance, making it suitable for more demanding environments.
- Specific Additives: BL3 grade might include specific additives that improve UV stability, thermal resistance, or mechanical properties.
- Application-Specific Properties: Designed to meet specific industry requirements, such as those for potable water piping, chemical storage, or industrial uses.
In summary, HDPE BL3 is a specialized grade of HDPE with properties tailored for specific high-performance applications, distinguishing it from general-purpose HDPE.
Production Process of HDPE BL3
The production of HDPE BL3 follows the standard process for HDPE with specific modifications:
- Polymerization: Ethylene gas is polymerized using a catalyst under controlled temperature and pressure conditions in a slurry, solution, or gas-phase reactor.
- Compounding: The base HDPE resin may be compounded with stabilizers, antioxidants, UV inhibitors, and other additives to enhance its properties and meet the BL3 specifications.
- Forming: The compounded resin is then processed into pellets, sheets, or molded forms using extrusion, blow molding, or injection molding techniques.
To get familiar with BL3 granules, you should know that two techniques are mainly used to produce this product:
- Slurry polymerization
- Gas phase polymerization
BL3 granules are divided into different categories. These categories include the following:
- polymer
- Thermoplastic
- granule
- HDPE heavy granules
HPDE BL3 Specifications
Before you want to buy BL3 granules, it is necessary to check the specifications of this product. In this regard, you should know that the color of this product is white. Based on the tests conducted on this type of granule, the obtained results show that the MFI of this product is between 0.5 and 1.5 cm. ASTM D3418-15 test method is used to check the MFI of this granule.
On the other hand, studies show that the density of this material is 0.95 grams per square centimeter. In order to check the density of this material, we see the use of ASTM D1505 (2018) method for testing.
Another point that you should pay attention to is that the granule has high flexible density, transparent properties, weather resistance, etc. Also, the granule will be very hard at low temperatures. All these things have caused this product to be used in various industries.
Density: Typically, around 0.94 to 0.97 g/cm³.
- Tensile Strength: High tensile strength, typically around 21 MPa or higher.
- Impact Resistance: Excellent impact resistance, making it suitable for heavy-duty applications.
- Thermal Properties: Melting point around 130-137°C, good thermal stability.
- Chemical Resistance: Excellent resistance to a wide range of chemicals, including acids, bases, and solvents.
- Environmental Stress Crack Resistance (ESCR): Enhanced in the BL3 grade, making it suitable for harsh environmental conditions.
In order to buy and use HDPE BL3 granules, it is necessary to increase your technical knowledge about the features of this product:
This group of granules are in such a way that they have excellent resistance to most solvents
The important feature of these granules is their very high resistance to alcohols, dilute acids and alkalis.
HDPE BL3 granules are designed to have moderate resistance to oil and grease. Compared to other forms of granules, we see high tensile strength in BL3 granules. Investigations and tests show that BL3 granules have good low temperature resistance. One of the most important characteristics of BL3 granules is their excellent electrical insulation properties. This granule is a low-cost polymer with good processing capability.
HPDE BL3 Application
HDPE BL3 is used in various applications where its enhanced properties are advantageous:
- Pipes and Fittings: Used in the production of pipes for water supply, sewage, and industrial applications due to its high strength and chemical resistance.
- Containers and Tanks: Suitable for manufacturing large containers, storage tanks, and drums because of its durability and resistance to chemicals.
- Geomembranes: Utilized in landfill liners and pond liners where environmental stress crack resistance is critical.
- Agricultural Films: Used in high-strength films for agricultural applications, such as greenhouse covers and silage wraps.
- Automotive Parts: Certain automotive components that require high durability and resistance to chemicals.
- Consumer Goods: Products like toys, household containers, and furniture that benefit from HDPE’s strength and safety.
- Making packaging materials
- Production of milk bottles
- Production of shampoo bottles
- Making detergent bottles
- Create a food cap
- Production of plastic barrels
