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What is CTBN?

 CTBN is a highly versatile polymer that combines the properties of butadiene and acrylonitrile. It is widely used as a toughener in epoxy resins, thermoplastics and other materials to enhance their durability, impact resistance and flexibility. This elastomer is available in a variety of grades with different molecular weights and carboxyl contents to provide customized solutions based on the required properties.

 

One of the key properties of CTBN is its excellent low-temperature flexibility. It remains flexible and elastic even in extremely cold temperatures, making it ideal for arctic environments or applications where exposure to low temperatures is expected. This property ensures that materials containing CTBN maintain their integrity and performance even under harsh conditions.

 

 Additionally, CTBN has excellent adhesion to a variety of materials, including metals, plastics and composites. This adhesive property makes it a valuable additive in coatings, adhesives and sealants, improving their bond strength and service life.  CTBN’s compatibility with a variety of materials enhances its usefulness in different industries.

 

 Additionally, CTBN is known for its excellent impact resistance. It absorbs and disperses the energy of impact, preventing materials from cracking and breaking. This property is particularly valuable in applications where impact and impact resistance are critical, such as aerospace, automotive, and sports equipment. By incorporating CTBN into these materials, manufacturers can ensure that their products can withstand harsh service conditions.

 

 Another area where CTBN excels is in providing toughness and elasticity to rigid polymers. By blending CTBN with thermoset polymers such as epoxy resins, the resulting composites exhibit enhanced toughness and crack resistance. This property is highly beneficial in manufacturing components such as heavy machinery, structural elements and electrical insulators.

 

The unique combination of properties offered by CTBN makes it a valuable material in a variety of fields. Aerospace engineers use CTBN for elastomeric seals, gaskets and vibration-damping components. In the automotive industry, CTBN is used in impact absorbers, underbody coatings and fuel system components.  CTBN is also widely used in the production of high-performance sporting goods, including golf balls, hockey sticks and athletic shoes.

 

In summary, CTBN (carboxyl-terminated butadiene acrylonitrile) is a versatile elastomer that enhances material properties. With its excellent low-temperature flexibility, adhesion, impact resistance and toughness, CTBN is widely used in industries such as aerospace, automotive and sports. As technology advances and demand for high-performance materials increases, CTBN is likely to continue to play a key role in improving the reliability and durability of a variety of products.

We are the top supplier of CTBN in China, offer different versions of CTBN and other related items like HTPB, ATBN, ATPB, etc..  meanwhile we can research and develop the new CTBN according to the special demand of our clients. Here is our some grades of CTBN, for more please contact via info@theoremchem.com

ITEM

CTBN-1

CTBN-2

CTBN-3

CTBN-4

CTBN-5

Carboxyl value(mmol/g)

0.45 – 0.55

0.55-0.65

0.55-0.65

0.65-0.75

0.6-0.7

Appearance

Amber Viscous liquid , no visible impurities

Viscosity (27℃,Pa.S)

≤180

≤150

≤200

≤100

≤550

Acrylonitrile content,%

8.0-12.0

8.0-12.0

18.0-22.0

18.0-22.0

24.0-28.0

Moisture,wt% ≤

0.05

0.05

0.05

0.05

0.05

Volatile Content,% ≤

1.0

1.0

1.0

1.0

1.0

Molecular weight

3600 – 4200

3000 – 3600

3000 – 3600

2500 – 3000

2300 – 3300

* In addition:We can research and develop any new version of CTBN according to the special demand of our clients.

Post time: Oct-15-2023