Test Items | Specifications | Results |
Appearance | White flake | Complies |
Purity | ≥98.0% | 98.86% |
Moisture Content | ≤0.2% | 0.13% |
Melting Point | ≥100ºC | 104.1~104.6ºC |
OH Group Value | 550~580 KOH mg/g | 557.86 KOH mg/g |
Application
HQEE is a symmetrical aromatic diol chain extender. It can improve tensile, hardness, resilience properties to MDI-polyurethane elastomers. HQEE/MDI is a PU elastomer series parallels MOCA/TDI. Finished products as: oil well seals, forklift tires, conveyor belt, hydraulic cylinder seals and many other PU products.
LCU elastomers require two principle components: a prepolymer terminated with reactive isocyanate groups and a difunctional active hydrogen-terminated chain extender. Prepolymer is a product based on the reaction of polyester or polyether with isocyanate (TDI,MDI,ADI). The chain extender is usually a short chain of diamine or diol. MDI prepolymers are usually extended with diols.