EN
Better quality
Better QualityBetter service
Better Quality
The Largest Manufacturer of MTHPA Products in China.

Performance and usage of Methyl Tetrahydrophthalic Anhydride

First, the performance of MTHPA (MeTHPA):
Methyl tetrahydrophthalic anhydride, referred to as MTHPA, MeTHPA, has two isomers, namely 4-methyltetrahydrophthalic anhydride and 3-methyltetrahydrophthalic anhydride, having a melting point of 65 °C and 63 °C. It is rarely used as a curing agent alone. The actual commodity is a liquid mixture that isomerized to various isomers. The molecular weight is 166.17, and light yellow color, transparent oily liquid, relative density of 1.20 - 1.22. Freezing point < -20 °C. The boiling point is 115-155 °C. Viscosity (25 °C) 40 - 80 mPa · s. The refractive index is 1.4960 to 1. 4980. The anhydride group content is ≥ 40%. The neutralization equivalent is 81-85. The flash point is 137 - 150 °C. Soluble in acetone, ethanol, toluene, etc. It has good stability in air and is not easy to precipitate crystals. Low toxicity, LD502102mg/kg.

Second, the use of MTHPA (MeTHPA):
MTHPA is used in epoxy resin curing agents, solventless paints, laminates, epoxy adhesives, etc. And it is also used in epoxy resin curing agent and has long-term storage at room temperature, low freezing point, low volatility and low toxicity. Widely used in motors, dry-type transformers, high-voltage switches, transformers, line output transformers, home appliance capacitors, power capacitor resistors, integrated circuit impregnation, casting and winding.

Third, precautions and packaging:
1. Pay attention to airtightness and moisture during storage and transportation. Stable performance, no deterioration at room temperature for one year.
2. 25kg plastic drum or 220kg steel drum or IBC tank.
Related News
  • How Long does Epoxy Last?

    How Long does Epoxy Last?

    June 5, 2019Almost all epoxy resins have a shelf life of 12 months (from the date of production). In fact, the validity period of epoxy resin adhesive itself is much longer than that of curing agent, even resin c...view
  • Briefly Explain the Application Relationship between Epoxy Resin and Curing Agent

    Briefly Explain the Application Relationship between Epoxy Resin and Curing Agent

    May 28, 2019Epoxy resin is a kind of thermosetting polymer synthetic material with good bonding, corrosion resistance, insulation and high strength. It has been widely used in the bonding of a variety of metal an...view
  • What Is Epoxy Hardener Made Of

    What Is Epoxy Hardener Made Of

    June 5, 2019The epoxy resin itself is a thermoplastic linear structure. After heating, the solid resin can be softened and melted into a viscous or liquid state. The thermal viscosity of liquid resin decreases. O...view
  • How Long does it Take for Epoxy Resin to Harden?

    How Long does it Take for Epoxy Resin to Harden?

    June 5, 2019Three stages of epoxy resin curing agent1. Liquids - Operating timeOperating time (also working time or service life) is a part of curing time. After mixing, the resin/curing agent mixture is still li...view
  • How To Avoid Epoxy Resin Cloudy

    How To Avoid Epoxy Resin Cloudy

    June 5, 20191. Reduce the purity of epoxy resin, such as adding other types of epoxy resin.2. Use epoxy resin with low crystallization tendency or without crystallization.3. Storage conditions: Storage temperatur...view
  • How to Accelerate Epoxy Curing

    How to Accelerate Epoxy Curing

    June 5, 2019Epoxy resin can be said to account for a large proportion in coatings, making products with different characteristics and uses. Epoxy resin has excellent chemical resistance, especially alkali resista...view


Contact Us