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HTPB | Hydroxyl-terminated Polybutadiene

Executive standard: GJB1327A-2003
CAS NO. 69102-90-5
English name : Hydroxyl-terminated Polybutadiene
English abbreviation: HTPB

Product parameters

Executive standard: GJB 1327A-2003

English name : Hydroxyl-terminated Polybutadiene

English alias: HTPB

CAS RN:69102-90-5

1. Physical and chemical properties:
1.1 Product brief: HTPB is a liquid teleclaw polymer and a type of rubbers. It reacts with chain extender, cross-linking agent or curative at room temperature or high temperature to form the three-dimensional network structure of thermosetting polymer. It has excellent characteristics, such as, good mechanical properties, hydrolysis resistance, acid and alkali resistance, wear resistance, cold temperature tolerance, electrical insulating property.

1.2 Structure formula:

HTPB molecular formula

2. Technique Indexes:

Item Index
Type I Type I-Modified Type II Type III Type
Hydroxyl value, mmol/g 0.47-0.53 0.54-0.64 0.65-0.70 0.71-0.80
Moisture, % ≤0.050
H2O2 content, % ≤0.040 ≤0.050
Viscosity(40), Pa·s ≤9.5 ≤8.5 ≤4.0 3.5
Mn(×103)(VPO/GPC) 3.80-4.60 4.00-4.60 3.30-4.10 3.00-3.60 2.70-3.30
Volatilization loss, % ≤9.5 ≤8.5
Appearance Transparent oily liquid, no visible impurities

3. Application: It is transparent, low viscosity, age resistance, good low-temperature performance and processability. It is used to be casting elastomer for the structural materials for the tyre of automobile and aeroplane, building materials, shoe materials, rubber products, thermal insulation, coating, adhesive, encapsulating material, electrical insulating material, waterproof and anti-corrosion material, racetrack, wear-resisting conveyer belt, modification additive for rubber and epoxy resin, etc.

1) Adhesives, which connect objects through adhesion and cohesion from the surface;
2) Paint, applied to the surface of the object being protected or decorated, and can form a continuous film firmly attached to the object being coated;
3) Industrial rubber materials such as tires (belts, shock-proof rubber) and industrial rubber materials with complex shapes (safety parts for vehicles such as bumpers, etc.);
4) Sealing materials, joint filling materials;
5) Raw materials of artificial leather, elastic fiber, etc.;
6) Foam plastics and excellent impact absorption materials;
7) Modifier of rubber plastic;
8) Electrical parts materials and potting materials for electrical parts materials;
9) Shoes materials;
10) Materials for ship deck, ceiling and paving.

4. Package: 50L white polyethylene plastic bucket with mouth diameter no less than 100 mm, 50 kg per bucket.

5. Storage:Stored at cool, dry and ventilate place. The best storage condition is between -20~38℃. Shelf life: 12 months. After the shelf life expires, the samples should be re-sampled and re-inspected according to the technical specifications in Part 2, and they can still be used after passing the test.

6. Transportation: Avoid rain, moisture and sun exposure. Don’t mix-transport with strong oxidizer.

In addition: We are able to develop custom-made products according to the clients’ requests.


We are able to develop custom-made products according to the clients'requests

Tanyun has R&D Center located in Hangzhou with leading experts and PhDs in chemistry,

We have experienced R&D capability and rich experience in production be able to provide various of organic chemicals, research, development, production of medical intermediates, etc.

Tanyun have created 47 patents. including 17 invention patents (including 2 patents of national defense), and have developed over 20 kinds of customized chemicals for the customers. in which 3 products, copper chromite dehydrogenation catalyst, have been already accepted in batch production by customer. 6 products, efficient curing agent, have been applied in pilot trials and pilot production by customers.

More than 10 kinds of chemicals have been in R&D, such as nano-waterproof materials, oil additives and fine chemical intermediates.

TANYUN produces boron, ferrocene, and more series of chemicals, which cannot be all listed on the website. For more information about products and MSDS, please contact ty@tanyunchem.com. You can also consult related product customization and latest research and development information.