develop different version of CTBN Carboxyl terminated butadiene nitrile rubber(CTBN) CAS 25265-19-4 Carboxyl-Terminated Butadiene-Acrylonitrile CAS 25265-19-4/68891-46-3
| Product Name |
|
| CAS No. |
25265-19-4/68891-46-3 |
| Appearance |
Liquid/Powder |
| Purity |
≥99%, ≥99.9%, ≥95%, Industrial Grade, Technical Grade (Other purities are also available) |
| Ingredient |
N/A |
| APS |
1-5 µM, 10-53 µM, Nano size (Can be customized), Ask for other available size range |
| Product Code |
NCZ-NRQ-343/26 |
Product Description
The liquid carboxyl-terminated butadiene acrylonitrile is one type of liquid rubber which has carboxyl group as it’s function group, and it’s code is CTBN, can be used generally in aviation and civil industrial areas. Normally CTBN is applied combined with somatotype resin. The CTBN which has active carboxyl-terminated group can react on epoxy resin so as to enhance the toughness.
The CTBN can be used as:
– Adhesives, bonding, sealing, spraying, potting (aerospace, automotive, electrical/electronics, industrial. marine and construction applications…)
– Coatings (solution, powder, waterborne)
– CTBN is tough to epoxy resin and has excellent flexibility modifier to thermosetting resins like epoxy, phenolic, unsaturated polyester and photosensitive resins.
Benefits & Features
1. Enhances the toughness and flexibility of thermoset resins
2. Improves adhesion to substrates that are difficult to bond to
3. Increases impact and crack resistance
4. Improves durability (fatigue resistance)
5. Increases low-temperature mechanical properties
6. FDA version available
Application
1. CTBN is an excellent flexibility modifier for thermosetting resins like epoxy, phenolic, unsaturated polyester and photosensitive resins. It can improve brittleness resistance and cracking resistance of the final product.
2. The metallic adhesive made from epoxy resin which is modified by CTBN (acrylonitrile content is 25%), has good toughness, flexibility and fatigue resistance. It can be used to bond the components of plane, as well as organic glass and terylene belt. This adhesive also can be used as seeping adhesive of various cloth materials such as glass fiber, terylene and carbon fiber.
3. The adhesive which is produced from CTBN and epoxy resin can curing at normal temperature, can be used to bond aluminous materials, it will reach the highest adhesive intensity after 72 hours. The peel- intensity is 0.55MPa, and the cutting intensity is 26.7MPa. The electric element sealant material produced by CTBN modified epoxy, which enhance the cracking resistance, will have no crack after 200 times recycling at the temperature between -55.0℃ to 150℃ .
4. The CTBN can be used as adhesive in grind and cutting wheel, it has the benefits of less adhesive but more abrasion resistance, as well as the performance of good polish, hot water resistance.
5. CTBN is mainly used as a binder for solid rocket propellants.
6. CTBN for Coatings (solution, powder, waterborne).
7.And other many kinds of usages
Packing & Storage
Safety instructions:
Storage should be at cool, dry and ventilate. The best condition is among -20 ~ 38℃. Shelf life of 12 months, if expire, still used if up to standard through retest. When transportation should avoid rain, sunlight. Don’t mix with strong oxidizer.
Specification
| ITEM |
CTBN-1 |
CTBN-2 |
CTBN-3 |
CTBN-4 |
CTBN-5 |
| Carboxyl value(mmol/g) |
0.45 – 0.55 |
0.45-0.65 |
0.45-0.65 |
0.65-0.75 |
0.45-0.70 |
| Appearance |
Amber Viscous liquid , no visible impurities |
| Viscosity (27℃,Pa.S) |
≤180 |
≤200 |
≤300 |
≤200 |
≤600 |
| Acrylonitrile content,% |
8.0-12.0 |
8.0-14.0 |
18.0-22.0 |
18.0-22.0 |
24.0-28.0 |
| Moisture% ≤ |
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 – 4500 |
3000 – 4500 |
2500 – 3000 |
3000 – 4500 |
develop different version of CTBN Carboxyl terminated butadiene nitrile rubber (CTBN) CAS 25265-19-4 Carboxyl-Terminated Butadiene-Acrylonitrile CAS 25265-19-4/68891-46-3 is generally immediately available in most volumes. Nanochemazone produces many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural, and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research, and safety (MSDS) information are available, as is a Reference Calculator for converting relevant units of measurement.
Related Information:
Storage Conditions:
Airtight sealed, avoid light, and keep dry at room temperature.
Please get in touch with us for customization and price inquiry
Email: contact@nanochemazone.com
Note: We supply different size ranges of Nano and micron as per the client’s requirements and accept customization in various parameters.
