|
|
Build Your Online Product Catalogs?
| Product Name: |
HQEE hydroquinone bis (2-hydroxyethyl) ether
|
| Supply Ability: |
2000 metric tons |
| Related proudcts |
polyurethane, |
| Specifications |
Net 20-kg carton drum with polyethylene liner. |
| Price Term: |
CIF,CRF,FOB |
| Port of loading: |
Shanghai, Ningbo |
| Minimum Order |
1 metric ton |
| Unit Price: |
USD NEGOTIABLE |
|
Chemical Name: hydroquinone bis (2-hydroxyethyl) ether
CAS No. : 104-38-1
PHYSICAL PROPERTIES
Appearance Offwhite powder
Melting range 102-105
Moisture % 0.3
Hydroxyl Value 535¡À15mg KOH/g
Boiling Point at 0.3mm Hg, 190
Solubility at 25,wt.%
Water
Acetone
Ethanol
Ethyl Acetate
Ethane
Dimethylacetamide (***C)
<1
4
4
1
<1
1
Specific Heat Cal/g/ 0.4
Melt Density at 110g/ml 1.15
Melt Viscosity at 110, cp 15
Bulk Density (loose) g/ml 0.51
Bulk Density (packed) g/ml 0.62
Pounds/53 gallons 250
Hygroscopicity, %
Dried at 50,34mmHg, 16hrs
At 24, 66.5 Relative Humidity, 168hrs
0.08
0.39
APPLICATIONS
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, many other PU products and ***ndex. 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 (TDIMDIADI). The chain extender is usually a short chain of diamine or diol. MDI prepolymers are usually extended with diols.
TEMPERATURE
HQEE melt tank should be uniformly heated and mildly agitated to prevent skimming on the surface. The prepolymer should be preheated to 110 before the HQEE is added and the resultant blend should be maintained at 110. All process lines should be heated to 110 and insulated to prevent cold spots that might cause HQEE aromatic diol to crystallize and clog the lines or result in an inaccurate mix ratio. The temperature of the mold, should be 110 to prevent defects in the resultant elastomer.
MIX RATIO
With HQEE/MDI systems, the equivalent weight ratio of prepolymer to chain extender NCO/OHshould be between 0.9/1 and 1.1/1. To achieve optimum properties in elastomers based on H |
| Company: |
Suzhou Xiangyuan Speical Fine Chemical Co., Ltd
|
| Contact: |
Michael Wang |
| Address: |
No25 Pingsi Road Pingjiang District |
| Postcode: |
215001 |
| Tel: |
86 512 67536550 |
| Fax: |
86 512 67545159 |
| E-mail: |
|
|
|
|
Home
