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Dixie Chemical MHHPA-KB

Chemical Family
Mixtures & Blends

MHHPA-KB is a low color, low viscosity, pre-catalyzed epoxy curing agent with a proprietary catalyst.

Properties

Physical Form
Liquid

Identification

CASE Ingredients Functions
Curing Agent

Product families

Applications

Electrical & Electronics — Packaging & Assembly
  • Potting Compounds

Product Families

CASE Ingredients — Additives
  • Functional Additives

Other characteristics

Features

Easy Handling, Long Potlife, Low Viscosity, Moderate Yellowing Tendency

Functions
Curing Agent
Compatible Polymers & Resins
Epoxies (EP)
Markets
Electrical & Electronics
Storage

MHHPA-KB will react with water to form methylhexahydrophthalic acid. This is normally undesirable, so MHHPA should be stored in such a way that it is carefully protected from moisture contamination. For more details on the design of bulk storage for MHHPA-KB, consult the Dixie Chemical Company brochure "Epoxy Curing Agent Storage Requirements."

Appearance
Clear liquid
Technology
CASE Ingredients
Epoxy Formulations

Most applications use between 80-90 parts by weight MHHPA-KB with 100 parts bisphenol A liquid epoxy resins. MHHPA-KB was formulated with a variety of epoxy resins. Viscosity was measured at 25°C, and gel time was measured at 150°C. Samples were cured for 1 hour at 120°C, fol lowed by a post-cure of 1 hour at 220°C, and glass transition temperatures we re measured using a differential scanning calorimeter. The following table summarizes these results:

Compatible Polymers and Resins
Epoxies (EP)

Technical data

Table 1 of 1

5 rows
CharacteristicValueUnitMethod
Specific Gravity1.2g/ccD-102 (ASTM D 4052)
Viscosity40-100cPD-150F
Boiling Point145° CASTM D86
Flash Point149° CASTM D93
Molecular Weight (Average)170——

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