TJB Couplers Inc.
TJB primarily serves the mining and tunneling industry with solutions to their cable coupler chal……...

Polyethylene carbonate, or QPAC®25, is a transparent, amorphous solid polymer that is easy to work with and has long-term mechanical stability. The formula for the compound is (C3H4O3)n.
The following forms are offered by QPAC®25:
Granulate
Solution
Applications
Ceramic, metal, or glass powders are used to create high-purity technical components, pastes, inks, and coatings. Barrier film in plastic production is an example of a non-binder application.
Key Benefits
Decomposition in a wide range of atmospheres, including air, oxygen, nitrogen, hydrogen, argon, and vacuum
Excellent clarity
Exceptional adhesion
Extrudable into barrier film for multi-layer construction
Low-temperature decomposition is excellent for thermally sensitive materials
Outstanding green strength
Range of molecular weights from 50,000 to 200,000
Superb oxygen barrier properties
Typical Physical Properties of QPAC®25
Source: Empower Materials
| Property | Value |
|---|---|
| Density (g/cm3) | 1.42 |
| Refractive Index | 1.470 |
| Decomposition Temperature (°C) | 220 (estimate) |
| Glass Transition Temperature (°C) | 0-10 |
| Heat of combustion (cal/gm) | 3,753 |
| Heat of formation (cal/mol) | -88,726 |
| Molar Mass of repeating unit | 88.1 |
| Solubility | Upon request |
TJB primarily serves the mining and tunneling industry with solutions to their cable coupler chal……...
沃德公司成立于1940年,位于斯塔福德郡特伦特河畔伯顿附近的伍德维尔,专门从事黑色金属回收。 公司于1……...
RONAS s. r. o. (Ltd.) ranks amongst the leading manufacturer of injection moulds for thermoplasti……...
East Coast Precision Manufacturing 是一家领先的塑料制造商,采用最先进的 CNC 设备。我们将与您合作……...
Neil Schmidgall and his wife Linda were the first two employees of Superior Industries, founding ……...
JCB has launched a new, advanced equipment called 457 ZX wheel loader which is productive, effici……...
Item North America is a premier provider of precision ball screws for use as a drive mechanism in linear slides, multi-axis motion and complex material handling devices. item ball screws feature hi……
SurPASS™ 3 is capable of measuring the zeta potential over an extensive range of materials and allows the analysis of varied surface properties and their changes. The zeta potential explains ……
AHP Materials is a specialty materials company focused on the manufacturing and selling of high purity specialty metals and compounds. AHP concentrates mainly on Antimony, Cadmium Sulfide, Telluriu……