About Carbon Black N330

 

Hello,

In today's post, I’d like to talk about Carbon Black — specifically the N330 grade.
For those of you who are familiar with Carbon Black, I’d cautiously guess that N330 is probably the grade you’ve encountered most often.

That’s because N330 is one of the most widely used grades across many different industries.

Let’s take a closer look at what makes N330 so commonly used.

If you’d like to learn more about Carbon Black in general, please feel free to check out the related post linked below on my blog.

What is Carbon Black?

: https://khanpolymer.blogspot.com/2025/01/what-is-carbon-black.html

In Carbon Black, "N330" is a designation based on ASTM (American Society for Testing and Materials) standards. The "N" stands for Normal Cure, and the number "330" indicates specific characteristics related to particle size and surface area.

-N: Stands for Normal Cure, indicating a standard curing rate. It is commonly used in tires, plastics, and rubber products.

-330: Refers to classification based on particle size and surface area. N330 has a medium particle size (approximately 26–30 nanometers) and specific surface area characteristics, making it suitable for applications like tire treads, plastics, and rubber components.

N330 offers a balanced combination of abrasion resistance, elasticity, and mechanical strength, which makes it widely used in tires, plastic goods, and rubber products.

Carbon Black N330

Carbon Black N330

Structure and Particle Size of Carbon Black N330

1. Particle Size

• Smaller particle sizes (e.g., N220, N330) result in a larger surface area, leading to stronger reinforcement effects in rubber. However, the smaller the particle, the more difficult the processing becomes. While abrasion resistance improves, dispersion becomes more challenging.

• Larger particle sizes (e.g., N550, N660) offer better processability, easier dispersion, and improved heat resistance and elasticity. However, larger carbon black particles provide relatively lower reinforcement in rubber.

• Carbon Black N330 has a medium particle size, offering excellent versatility and making it suitable for a wide range of applications.

2. Structure

• "Structure" refers to the complexity of how the carbon black particles aggregate. It is usually classified as high structure or low structure.

• High-structure carbon black has more complex aggregation, providing better impact resistance and is suitable for applications requiring higher mechanical strength.

• Low-structure carbon black aggregates more simply, making it easier to process and disperse within the polymer matrix.

Applications of Carbon Black N330 in the Plastic Industry

-Carbon black used in plastic products has slightly different requirements compared to rubber applications:

1. Color strength

2. UV stability

3. Dispersibility

These three aspects are especially important. In plastic products, carbon blacks with smaller particle sizes and lower structures are generally preferred.

-The N330 grade has small particle size, which provides high color strength and excellent UV protection.

-It is suitable for plastic parts exposed to sunlight, such as appliance housings and automotive exterior components.

-N330 is also a good choice when processability and dispersibility are important.

Carbon Black N330 Manufacturing Method

-The particle size and structure of each grade are created differently by adjusting the temperature, oxygen concentration, and reaction time.

*N330 (Medium Particle Size, Medium Structure)

• The reaction is induced at medium temperature and oxygen concentration, resulting in a medium particle size.

• The reaction time is maintained at a medium level to ensure the structure is not too complex.

• As a result, it has balanced properties of dispersion and strength.

In summary, medium temperature & medium reaction time create medium particle size and structure.

Products that use Carbon Black N330

Carbon Black N330 is widely used in the rubber and plastic industries due to its balanced abrasion resistance, strength, and dispersibility. Its main applications include tires, rubber products, plastics, and inks. Specific products that use it are as follows:

1. Plastics

-Plastic Masterbatches: N330 is mixed into plastic masterbatches to enhance the color, UV resistance, and durability of plastic products.

-Household Appliance Exteriors: It is used in electronic device cases or household appliance exteriors where durability and UV resistance are required, and it is used to create deep black colors.

Plastic Masterbatch

2. Tires

-N330 is commonly used in the production of tire treads and tire sidewalls. When used in the tire tread, it enhances abrasion resistance and traction, and when used in the sidewalls, it provides balanced durability and shock absorption.

Car tire

3. Rubber products

-Rubber hoses: Used in industrial rubber hoses where durability and flexibility are important.

-Rubber belts: N330 is suitable for rubber belts like conveyor belts or drive belts, due to its high abrasion resistance and strength.

Rubber horses

Rubber horses

Conveyor belt

4. Ink and Coatings

-Printing Ink: N330 enhances the color strength of ink, especially used in black printing inks.

-Coatings and Paints: Used in industrial coatings or anti-corrosion paints, N330 improves UV resistance and enables uniform color expression.

Black ink

N330 is widely used in products that require wear resistance, strength, and UV resistance, such as tires, rubber components, plastic products, and inks and coatings.

*For any inquiries about Carbon Black N330 products, please leave a comment or contact us via the email provided in the description, and we will respond promptly.

http://khanpolymer.com/

THANK YOU !