Tanyun Ammonium Perchlorate Manufacturer


Headquarters: No. 75,Xinhu Street,Xishi District, Yingkou,Liaoning, China 115004

Shenzhen Office: Floor 15A,No. 111 Taizi Road, Shekou, Nanshan District, Shenzhen, Guangdong, China 518100

HTPB/Hydroxyl-terminated Polybutadiene

Executive standard: GJB 1327A-2003
English name : Hydroxyl-terminated Polybutadiene
Chinese name: 端羟基聚丁二烯
CAS RN: 69102-90-5

Product parameters

Executive standard: GJB 1327A-2003

English name : Hydroxyl-terminated Polybutadiene

Chinese name: 端羟基聚丁二烯

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 (2)
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.

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