Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer)

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Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer)

Name: Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer)
Brand: Hebei Shunxing Import and Export Co., Ltd
Price: 100 USD
Availability: InStock

Price 100 USD ($)/ Metric Ton

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MOQ : 1 Metric Ton

Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer) Specification

Shape
Liquid or Viscous Resin

Poisonous
Yes

Taste
Odorless

Form
Viscous Liquid

Structural Formula
-[(CH2CH=CHCH2)n]-(OH)2

Other Names
HTPB; Polybutadiene, hydroxy-terminated

Refractive Rate
nD20 1.48-1.52

Density
1.0 Gram per cubic centimeter(g/cm3)

Molecular Weight
~2800-5000 g/mol (varies by grade)

HS Code
39022000

Solubility
Soluble in organic solvents such as toluene, benzene, and ether; insoluble in water

Purity
>98%

Boiling point
Not applicable (polymer)

Melting Point
Below -60C

Molecular Formula
C4H6O2n (variable polymeric structure)

Storage
Store in tightly sealed containers, in a cool, dry, well-ventilated place, away from heat and sunlight

Ph Level
Neutral

Smell
Mild, characteristic

Classification
Synthetic Polymer

Chemical Name
Hydroxyl Terminated Polybutadiene

CAS No
69102-90-5

EINECS No
273-080-2

Grade
Industrial Grade

Standard
Enterprise standard/Industry standard

Type
Synthetic Rubber Polymer

Usage
Used as prepolymer and binder

Main Material
Polybutadiene

Application
Binder for solid rocket propellants, sealants, adhesives, coatings, polymer modification

Functionality
2.22.5 (average number of OH groups per molecule)

Hydroxyl Content
0.82.5% by weight (typically 0.81.2 mmol/g)

Flash Point
>180C (Closed Cup)

Shelf Life
12-24 months under recommended storage conditions

Free Acid Content
<0.01%

Viscosity
2500-6000 mPa.s at 25C

Color
Colorless to light yellow

Polydispersity Index
2.5

Water Content
0.05%

Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer) Trade Information

Minimum Order Quantity
1 Metric Ton

Main Export Market(s)
Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa

About Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer)

HTPB is a liquid remote claw polymer, the new liquid rubber.It and chain extension agent, crosslinking agent in room temperature or high temperature reaction can generate 3D network structure of curing content.The curing content has excellent mechanical properties, especially good resistance to hydrolysis, acid and alkali resistant, wear resistance, low temperature resistance and excellent electrical insulation.

Versatile Industrial Performance

HTPB's unique polymeric structure and high hydroxyl functionality deliver excellent binding and film-forming properties across industries. It is widely employed in the development of solid rocket propellants and advanced sealing and adhesive products. Its resistance to moisture, high purity, and compatibility with diverse fillers and cross-linkers enhance its appeal in both defense and civil sectors.

Handling, Storage, and Safety

To maximize shelf life, store HTPB in tightly sealed containers within cool, dry, and well-ventilated conditions, away from direct heat and sunlight. This non-poisonous, odorless polymer should be handled with standard safety precautions. Its flash point above 180C offers a high safety margin during routine processing and storage tasks.

FAQ's of Htpb CAS 69102-90-5 Hydroxyl Terminated Polybutadiene (HTPB polymer):

Q: How is Hydroxyl Terminated Polybutadiene (HTPB) typically used in industries?

A: HTPB functions as a binder and prepolymer, primarily in the manufacture of solid rocket propellants, but it is also used extensively in sealants, adhesives, coatings, and for polymer modification due to its crosslinking ability and chemical reactivity.

Q: What benefits does HTPB offer for solid rocket propellant formulations?

A: HTPB provides excellent mechanical flexibility, chemical stability, and high binding efficiency when used in solid rocket propellants. Its uniform polymeric structure and high purity enable reliable, high-performance energetic materials.

Q: Where should HTPB be stored for optimal longevity and performance?

A: HTPB should be kept in tightly sealed containers, placed in cool, dry, and well-ventilated environments away from heat sources and sunlight. Proper storage extends its shelf life to 12-24 months.

Q: When is HTPB unsuitable for use?

A: HTPB should not be used if it has been exposed to excessive moisture, heat, or if there are noticeable physical changes such as discoloration or phase separation beyond its shelf life, as these factors can affect its reactivity and performance.

Q: What processes are used to incorporate HTPB in adhesives and coatings?

A: HTPB is dissolved in appropriate organic solvents and combined with crosslinkers or curatives to form reactive prepolymer systems. These systems are then applied as adhesives or sealants, which cure upon exposure to air, heat, or catalysts.

Q: How does HTPB's solubility profile affect its applications?

A: Being soluble in organic solvents like toluene and benzene but insoluble in water, HTPB is easily formulated into systems requiring homogeneous mixing and moisture resistance, making it ideal for specialized coatings and sealants.

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