Online Consultation 
ATBN (Amino-Terminated Liquid Nitrile Rubber(ATBN) CAS No. 68683-29-4 )
Amino-terminated liquid nitrile butadiene rubber
ATBN
CAS No. 68683-29-4
Read More
English
Online Service
Mobile/Wechat/Telegram: +86-18321679576
WhatsApp:+86-13248126998
Email:young@theoremchem.com
Email:info@further-chem.com
Liquid Polybutadiene LPB
Liquid Polybutadiene
LPB
Chemical Name: Liquid Polybutadiene
CAS No. 9003-17-2; 25038-44-2
CODE: LPB
Product Description
Liquid Polybutadiene (LPB), also known as low-molecular-weight polybutadiene, is a type of liquid elastomer with a molecular weight of 1,000–10,000. It appears as a colorless to pale yellow transparent viscous liquid at room temperature and belongs to non-functionalized or functionalized (e.g., hydroxyl-terminated/carboxyl-terminated) liquid elastomers based on hydrocarbons.
Chemical Structure: The main chain is polymerized from butadiene, containing three structural units: 1,2-vinyl (high-vinyl type, ≥70%), cis-1,4, and trans-1,4. Grades with high 1,2-vinyl content exhibit higher reactivity.
Product properties & Features
1. High Reactivity: The molecular chain contains a large number of double bonds, enabling participation in vulcanization, grafting, epoxy curing, and other reactions, making it suitable as a reactive plasticizer/crosslinking agent.
2. Excellent Weather Resistance and Low-Temperature Performance: Saturated hydrocarbon backbone combined with low Tg results in aging resistance, water resistance, acid and alkali resistance, and elasticity retention at -60°C.
3. Low Volatility and High Insulation: High molecular weight leads to extremely low VOC, and it exhibits good electrical insulation properties, suitable for electronic potting and wires & cables.
4. Toughening and Reinforcing Effect: Significantly improves the impact resistance, tear resistance, and fatigue resistance of epoxy resins and rubbers.
Applications
1. Adhesives and Sealants: Epoxy resin toughener, automotive structural adhesives, electronic potting compounds, UV-curable adhesives, semiconductor bonding agents, enhancing adhesion and flexibility.
2. Rubber Modification: Reactive plasticizer for styrene-butadiene rubber/cis-polybutadiene rubber (replacing aromatic oil), reducing rolling resistance and improving wear resistance and tear resistance; co-crosslinking agent for peroxide vulcanization systems, increasing hardness (90A–95A) and reducing compression set.
3. Coatings and Inks: Reactive diluent for UV-curable coatings, additive for anti-corrosion coatings, ink modifier, reducing VOC and enhancing film water resistance, weather resistance, and flexibility.
4. Electronics and Electricals: Circuit board protective coatings, electronic component encapsulation materials, wire and cable insulation layers, leveraging its high insulation, low-temperature resistance, and aging resistance.
5. Others: Polyurethane modification, thermosetting resin toughening, explosive binders, flexible printing plate materials, etc.
Packing & Storage
50kg/plastic drum or 180kg/metal drum packaging.
Storage should be cool, dry and ventilated. The shelf life is 12 months, after the expiration of the re-inspection can still be used.
Avoid rain and sun during transportation. Do not mix with strong oxidants.
Technical Index
Item | LPB 2000 | LPB 3000 | LPB 4000 | LPB 3000LV |
Vinyl content, % | 85 - 95 | 85 - 95 | 85 - 95 | 25 - 35 |
Molecular weigh | 2000 | 3000 | 4000 | 3000 |
Viscosity（45℃/113℉，Pa·s) | ≤10 | ≤20 | ≤50 | ≤10 |
Volatile | ≤0.50 | |||
Appearance | Light yellow or colorless viscous liquid | |||
* NOTE: We can research and develop any new versions of LPB according to the special demand of our customers.
Get in Touch
Whether is a product enquiry or technical help, please send messager here,
our team will respond within 24-48 hours
-
First Name
-
Last Name
-
Phone Number
-
E-mail Adress *
-
You Message Descriptions
-
By submitting this form, you consent to the storage of your data and your interests in order to answer your enquiry. Further
information on data processing, your rights and revocation can be found in our privacy policy.
