Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- Plastics & Elastomers Functions
- CAS No.
- 26471-62-5
- EC No.
- 247-722-4
- Technologies
- Product Families
- Functionality
- Under mild reaction conditions, i.e. at up to approx 130°C in the absence of basic catalysts, it is primarily bifunctional, with a molecular weight of 348.
- Under more severe conditions (either at temperatures above 140/150°C or with the aid of highly basic catalysts at temperatures above 90°C) it remains primarily
bifunctional but with a molecular weight of 174, as the central uretdione group splits to form monomeric TDI.
- Chemical Structure
Features & Benefits
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
- Product Applications
- Adhesion promoter for rubber-to-fabric bonding (polyester, aramid, polyamide). Applications include tire cord, conveyor belts, drive belts, hose, coated fabrics.
- Adhesion promoter for PVC-to-fabric bonding (polyester, aramid, polyamide). Applications include coated fabrics, conveyor belts.
- Vulcanizing agent for polyurethane rubbers like Millathane® 26, particularly when a high hardness is desired. Applications include industrial molded parts, rollers, ceramic tile molds.
- Crosslinker for heat-activated adhesion, coating or elastomer systems.
Properties
- Appearance
- Fine, white powder
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Molecular weight | 348 | — | — |
| Density | approx. 1.48 | g/cc | — |
| Melting Point | min. 145 | °C | — |
| Monomer Content | min. 0.1 | % | — |
| Screens (through 325 mesh) | min. 99% | % | — |
| Particle Size (less than 10 microns) | min. 75% | % | Malvern |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Technical Details & Test Data
- Solubility
Grams of Thanecure® T9 Superfine per 100 cc of solvent 23° C 50°C 100°C Water - - - Toluene 0.1 2.0 18 Chlorobenzene 0.3 3.0 36 o-Dichlorobenzene 0.1 2.0 7 - Abrasion Resistance
- Abrasion resistance is the ability of a surface to resist wearing due to contact with another surface moving with respect to it.
- High resistance to abrasion is important in applications like rollers, belting, and helicopter dust covers.
- The DIN Abrasion Test (ASTM D5963) is one of the most common tests for measuring abrasion resistance.
- It's where a rotating cylindrical sample is passed across a rotating drum of abrasive and the amount of sample volume lost is measured.
- Typical abrasion resistance values for Millathane millable urethane compounds is 50-80 mm³.
- Some compounds can have abrasion resistance values as low as 25 mm³, depending on the polymer, cure system, and formulation.
- Polyurethane rubber provides the highest abrasion resistance of any rubber, synthetic or natural.
- Laboratory tests do not always predict the advantage of Millathane compounds over other rubbers, but field experience often shows a tremendous improvement in product lifetime when millable urethane replaces conventional rubber.
Packaging & Availability
- Packaging Information
Package size/carton: 50 lb (22.7 kg) box.
Storage & Handling
- Storage Information
Stored under dry and cool conditions.