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Product Description
Product Name: Methyl tetra-Hydro Phthalic Anhydride (MTHPA)
CAS No.: 11070-44-3
Molecular Formula:C9H10O3
Molecular Weight: 166.178 (by 1987 INTERNATIONAL atomic mass)
Performance Characteristics
*High purity, light color: can be directly made or made into a variety of color epoxy resin products. Low viscosity: casting, sealing, impregnation process is good, casting can be added a large number of filler, so that the curing of good performance.
*Stable performance, low freezing point, long application period, can be stored for a long time at room temperature.
*Low volatility; Low toxicity; Heating loss is small, toxicity is only 1/20 to 1/40 of amine curing agent.
*Good intersolubility: this product can be intersoluble with all epoxy resins, with low mixed viscosity and low shrinkage of the system when heated and cured.This product is an essential new fine chemical product for electronic industry and electromechanical industry. Widely used in potting, casting, wrapping, laminating, molding, bonding, winding and other processes.
Technical Specifications
Appearance |
Light yellow transparent liquid, no mechanical impurities |
Color(Apha) |
≤150 |
Crystallization point,℃ |
＜0 |
Viscosity (25℃,mPa.s) |
20-50 |
Acid Value,mgKOH/g |
660-685 |
Anhydride Group Content,%， |
≥41.5 |
Heating loss,%,120℃ |
≤2.00 |
Free Acid(%) |
≤0.50 |
Application
*Widely used in the curing agents for epoxy resins, solvent-free paints, laminated boards epoxy adhesives.
*Also widely used in motors, dry-type transformers, high voltage switches, transformers, line-output transformers, appliances capacitors, integrated circuits impregnation, casting and winding.
Storage & Packaging
Stored in a cool and dry place with ventilation and can be preserved for 12 months.
Avoid direct contact with water or strong acid and alkali.
Packaging:220kg/ iron drum or 1000kg/IBC tote.
