N, N ’-4, 4’- diphenylmethane bismaleimide
Abbreviated: BMI or BDM.
CAS No. : 13676-54-5.
Formula: C21H14N2O4
molecular weight: 358.37.
structural formula:
2, technical indicators,
Iterms | unit | index | |||
Method of acetone | toluene | ||||
appearance | light yellow or yellow solid powder. | Yellow or pale yellow crystalline powder | Yellow crystalline powder. | ||
Melting point | ℃ | 148~158 | 150~158 | 152~158 | |
Acid value | mgKOH/g | <1 | |||
Volatility | % | ≤1 | ≤1 | ≤0.5 | |
purity | % | >98 | >98 | >99.5 | |
200 degrees gel time | Min. | <5 | |||
Toluene solubility | Soluble or a few insolubles | transparent solution. Soluble | Clear and transparent solution | ||
Suggested applications | mica tape products, high temperature resistant insulating varnish | Glass fiber insulating laminated sheet, pipe, parts, diamond sand wheel adhesive, engineering plastics modifier, rubber vulcanization agent. | Advanced composite resin, aerospace structural materials, high-grade printing electronic circuit boards, high-performance mica tape..
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usage:BMI level as manufacturing heat resistant structure material, H or F electrical insulating materials, a kind of ideal resin matrix are widely used in aviation, aerospace, electric power, electronics, computer, communication, automobile, railway, construction and other industries .
1.Motor insulation materials,The high temperature resistant dipping paint (solvent and non solvent), wire coating, laminated board, knitting belt, mica tape, electronic copper clad, molded plastic, epoxy modified F ~ H class powder coating, casting pieces..
2. Advanced composite materials, polymer matrix: aerospace, aeronautical structure materials, carbon fiber high temperature resistant structure, high-grade printing circuit board and other functional materials, etc.).
3. Engineering plastics such as polypropylene PP, nylon, PBT, PA, ABS, APC, PVC, EPDM, PMMA material such as the enhancement of modifying agent (such as: glass fiber reinforced polypropylene to join < 1% of BMI, can make the mechanical strength and Martin heat resistant double effect), can also be used in new type rubber vulcanizing agent, etc.
4. Wear resistant material, diamond wheel, heavy duty grinding wheel, brake pads, high temperature resistant bearing binder, magnetic materials, etc
PACKAGING
20kg or 25kg (net weight),kraft bag inner PE coated.
STORAGE
This material can be stable for 12 months under the normal storage conditions.However,precautions must be taken to avoid exposure to sunlight and always ,store this material in a sealed container under the dry and cool conditions.
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