Tanyun Ammonium Perchlorate


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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. It is especially used as the binder in the composite solid propellant.
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. It is still available if the retest results of the properties are qualified after expired date.
6. Transportation: Avoid rain and sun-baked. Don't mix 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

We have 4 R&D bases (Shanghai, Hangzhou, Suzhou, Yingkou), hundreds of synthesis leading experts and PhDs in chemistry.

We own experienced R&D capability and rich experience in production, and provides you with a variety of organic chemicals, medical intermediates research, development, production, etc. on behalf of a range of high quality customized service.

We have developed over 20 kinds of custom chemicals for the customers, and 3 kind products, such as copper chromite dehydrogenation catalyst, have already consigned a usage in batch with customer sign-off. 2 invention patents have been applied. 6 kinds of customized products, such as 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.

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