N,N'-4,4'-Diphenylmethane Bismaleimide (BMI) - CAS#: 13676-54-5


Item

Specification

Result

Appearance (visual)

Pale yellow or yellow solid powder

Pale yellow or yellow solid powder

Solubility

Dissolves with trace impurities

Completely soluble, clear

Melting Point ℃

150-170

158-162 ℃

Ash %≤0.30.05

Moisture (75-80 °C, 2 h) %

≤0.5

0.12

Acid Value mgkoH/g

≤5

0.5

Gel Time at 200 °C, s<300
160
Assay %>9797.52

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Packaging, Storage & Transportation

Packaging: Kraft paper bags or fiber drums, 25 kg/bag (drum).

Storage: Store in a dry, well-ventilated warehouse, away from heat sources and ignition sources, and protected from direct sunlight.


N,N'-4,4'-Diphenylmethane bismaleimide appears as a pale yellow crystalline powder. It is soluble in strongly polar solvents such as dimethylformamide (DMF), dimethylacetamide (DMAc) and dimethyl sulfoxide (DMSO), and partially soluble in acetone, dichloroethane, cresol and other solvents. It can undergo addition copolymerization with many nucleophilic reagents such as amines, phenols, hydrogen sulfide and thiols; it can also be copolymerized and blend-modified with several compounds simultaneously.


N,N'-4,4'-Diphenylmethane bismaleimide can impart outstanding mechanical properties, high electrical insulation, wear resistance, aging resistance, chemical corrosion resistance, radiation resistance, low volatility under high vacuum, as well as excellent adhesion, heat-and-humidity resistance and oil-free self-lubricating properties to materials over a wide temperature range (−200 °C to 260 °C). It is a modifier for various polymer materials and new types of rubber, and can also serve as a coupling agent and curing agent for other polymer compounds. It has good compatibility with various fillers and good wettability, adhesion and coverage with various fibers. In specialty polymer materials, it is easy to process and shape, and can be molded by compression molding, lamination, injection molding and impregnation, especially for thick, large, void-free insulating parts.


Name: Bismaleimide; N,N'-4,4'-DIPHENYLMETHYLENE-BISMALEIMIDE;

Aliases: 4,4'-diphenylmethyenebismaleimide; 1,1'-(METHYLENEDI-4,1-PHENYLENE)BISMALEIMIDE; 4,4'-BISMALEIMIDODIPHENYLMETHANE; 1,1'-(Methylenebis(4,1-phenylene))bis(1H-pyrrole-2,5-dione); 4,4'-diphenylmethanebismaleimide; Bismaleimidodiphenylmethane; 4,4'-METHYLENEBIS(N-PHENYLMALEIMIDE); N,N'-(4,4'-DIPHENYLMETHANE)BISMALEIMIDE; bismaleimides; mb-3000; matrimid5258; MFCD00005507; Bis(4-maleimidophenyl)methane; N,N'-(methylenedi-p-phenylene)dimaleimide; MB-3000H; Diphenylmethanebismaleimide; EINECS 237-163-4; xu292a; BMI; N,N'-(4,4'-METHYLENEDIPHENYLENE)DIMALEIMIDE;


Molecular Formula: C21H14N2O4

CAS No.: 13676-54-5

Molecular Weight: 358.35

EINECS No.: 237-163-4


Application Fields

For many years, bismaleimide (BMI) has been increasingly widely used in aviation, aerospace, power, electronics, computers, communications, locomotive and railway, construction and other industrial fields as a relatively ideal resin matrix for heat-resistant structural materials and Class H or Class F electrical insulating materials. Main applications include:

1. Motor insulation materials: high-temperature impregnating varnishes (solvent-borne and solvent-free), enameled wire varnishes, laminates, unidirectional tapes, mica tapes, electronic copper-clad laminates, molded plastics, epoxy-modified Class F–H powder coatings, castings, etc.;

2. Advanced composite matrix resins: aerospace and aviation structural materials, carbon-fiber high-temperature structural parts, high-grade printed circuit boards and other functional materials;

3. Engineering plastics: reinforcing modifiers, crosslinking agents and new rubber vulcanizing agents for PP, nylon PA, ABS, APC, PVC, PBT, EPDM, PMMA and other materials;

4. Wear-resistant materials: diamond grinding wheels, heavy-duty grinding wheels, brake pads, high-temperature-resistant bearing adhesives, magnetic materials, etc.;

5. Other fields: oil-free lubrication of fertilizer (synthetic ammonia) machinery and equipment, dynamic and static sealing materials, and many other high-tech fields.




Luoyang Seiline Chemical Products Co., Ltd.

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Email: 17644492139@163.com

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