Isomethyl Tetrahydrophthalic Anhydride with CAS 11070-44-3 MTHPA Epoxy resin curing agent hardener

Short Description:

Product Name：MTHPA(Epoxy resin curing agent)

Molecular weight:166.2
Appearance: clear liquid
Purity: 99.0 % min
Colour:80 Hazen max
Acid content: 0.5 % max
Pour point:- 40°C
Specific gravity 25°C:1.197 g/ml
Viscosity, 25°C:58.0 mPa.s
Vapour pressure, 120°C: 2.0 mPa.s
Refractive index, 25°C: 1.495

Acceptance: OEM/ODM, Wholesale, Trade,
Payment: T/T, L/C, PayPal
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Product Application

MTHPA is mainly used as a curing agent for epoxy resins. It has a low tendency to absorb moisture from the air and zero or minimal formation of carbon dioxide when mixed with tertiary amine accelerators.

MTHPA can be easily blended with various liquid resins providing stable, low viscous mixture and long pot lives.

It is widely used for:

− Casting/Potting

− Impregnation

− Lamination

In the field of reinforced plastics it is used for filament wound products (pipes for oil, poles and sport goods), laminated sheets, printed circuit boards, switch gears.

Thanks to its excellent insulating properties, MTHPA found a lot of applications for the production of electrical parts such as: capacitors, resistors, wiring parts transformers, ignition coils, fly back transformers.

Specification and Physical Properties

Types	ANY100 1	ANY100 2	ANY100 3
Appearance	light yellow transparent liquid without mechanical impurities
Color(Pt-Co)≤	100 #	200#	3 00#
Density, g/cm3, 20°C	1.20 - 1.22	1.20 - 1.22	1.20 - 1.22
Viscosity, (25 °C )/mPa · s	40-70	50Max	70-120
Acid Number, mgKOH/g	650-675	660-685	630-650
Anhydride Content, %, ≥	42	41.5	39
Heating Loss,%,120°C≤	2.0	2.0	2.5
Free Acid % ≤	0.8	1.0	2.5

Methyltetrahydrophthalic anhydride (MTHPA) is a chemical compound that falls under the category of cyclic anhydrides. It is primarily used as a curing agent in epoxy resins. Here are some of the main advantages of MTHPA:
1.Curing properties: MTHPA is an effective curing agent for epoxy resins, providing excellent heat and chemical resistance. It helps convert the liquid epoxy resin into a solid, durable, and thermoset material, making it suitable for various applications.
2.Low viscosity: MTHPA typically has a lower viscosity compared to other curing agents, which makes it easier to handle and mix with epoxy resins, improving the processing and application characteristics.
3.Good thermal stability: The cured epoxy with MTHPA exhibits good thermal stability, making it suitable for applications where temperature resistance is essential.
4..Good electrical properties: The cured epoxy resins with MTHPA as the curing agent often have desirable electrical.

Packing

Packaging:galvanized drum 220 kg bulk upon request other form of packaging can be available.

Storage:it must be stored away from open flames or other potential ignition source, and should be protected from moisture because, especially PI and 600 versions, easy crystallizes when it’s in contact with the air moisture. In the winter season MTHPA can solidify, it can easily be remelted by simply heating.

Shelf life:12 months from production date.

Product Storage and Transportation

Unless otherwise specified, the MTHPA products should be stored in a dry, cool and moisture proof area. Best used within 12 months after production date. They should remain in their original packaging until just prior to use. The products are suitable for delivery by the way of ship, train, or truck.

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11070-44-3