Best Bismaleimide [BMI] Powder CAS 13676-54-5

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Bismaleimide
13676-54-5

Products Description

Name: Bismaleimide

Cas: 13676-54-5

Purity: 99%min

MOQ: 1KG

Basic Info:

CAS No:

13676-54-5

Formula:

C21H14N2O4

EINECS:

237-163-4

Stock Availability

In stock

Brand Name

Look chem

Origin

China

 

Product Introduction:

Bismaleimide (BMI) is another resin derived from the polyimide resin system. Bismaleimide is a bifunctional compound whose active end group is maleimide (MI). The same general method as epoxy resin, has the same fluidity and moldability as epoxy resin, and overcomes the relatively low heat resistance of epoxy resin.

Bismaleimide resin (BMI) has excellent heat resistance, electrical insulation, magnetic permeability, radiation resistance, flame retardancy, mechanical properties and dimensional stability, and adopts the same molding process as epoxy resin . Widely used in aerospace, machinery, electronic equipment, other industrial sectors, advanced composite resin matrix, high-temperature insulation materials, adhesives.

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Product Nature:

  • Melting point: 156-158°C(lit.)
  • Boiling point: 490.79°C(roughestimate)
  • Density: 1.3360 (roughestimate)
  • Refractive index: 1.6800(estimate)
  • Acidity coefficient (pKa): -0.40±0.20(Predicted)

Specification:

ItemSpecification
Product NameBismaleimide
CAS No.13676-54-5
Appearance Light yellow powder
Content99% min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

The main properties of Bismaleimide:

  • Heat resistance
    • Because Bismaleimide contains benzene ring and imide heterocyclic ring, it has high crosslinking density and excellent heat resistance of cured product. Tg is generally above 250℃, and the operating temperature range is about 177℃～232℃.
    • Among the aliphatic Bismaleimides, ethylenediamine is the most stable, and the initial pyrolysis temperature (Td) decreases as the number of methylene groups increases. Aromatic Bismaleimide Td is generally higher than aliphatic Bismaleimide Td, of which 2,4. The Td of diaminobenzene is higher than other types.
    • In addition, Td is closely related to cross-linking density. Within a certain range, Td increases with the increase of cross-linking density.
  • Solubility
    • Commonly used Bismaleimide monomers are soluble in organic reagents such as acetone and chloroform, as well as strong polar, toxic and expensive solvents such as dimethylformamide (DMF) and N-methylpyrrolidone (NMP). This is due to the molecular polarity and structural symmetry of Bismaleimide.
  • Mechanical properties
    • The curing reaction of Bismaleimide resin is an addition polymerization reaction, which does not release small molecular by-products during the molding process and is easy to control. Because the cured product has a compact structure and few defects, Bismaleimide has high strength and modulus.
    • However, due to the high crosslinking density of the cured product and strong molecular chain rigidity, BM1 is very brittle, has low impact strength, low elongation at breaking point, and low fracture toughness G1c (<5J/m2).
    • Poor toughness is the main obstacle for Bismaleimide to adapt to high-tech requirements and expand new application areas. Therefore, how to improve resilience is one of the key technical factors that determine the application and development of Bismaleimide.
    • In addition, Bismaleimide has excellent electrical properties, chemical resistance and radiation resistance.

Bismaleimide use:

  • Bismaleimide is used in the manufacture of electrical insulating materials, wear-resistant materials, reinforced plastic additives, grinding stone adhesives, etc.
  • Bismaleimide can be used to make rubber crosslinking agent, aerospace structural materials, aerospace structural materials, functional materials, etc. Used in the manufacture of electrical insulating materials, wear-resistant materials, reinforced plastic additives, grindstone bonding agents, etc.
  • Bismaleimide, as a Pima resin matrix, has excellent properties such as heat resistance, oxidation resistance, and radiation resistance. It is widely used in electric power, aviation, aerospace, computer, telecommunications, automobiles, railways, construction and other industrial fields.

References:

  1. Cava, M. P.; Deana, A. A.; Muth, K.; Mitchell, M. J. (1973). “N-Phenylmaleimide”. Organic Syntheses.; Collective Volume, 5, p. 944
  2. Khutoryanskiy, Vitaliy V.; Opanasopit, Praneet; Brannigan, Ruairí P.; Tonglairoum, Prasopchai (2016-10-12). “Maleimide-bearing nanogels as novel mucoadhesive materials for drug delivery”. 
  3. Wikipedia
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Service:

Pre-Sales Service

* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.

* The sample supports testing and inspection.

* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

*Any inquiries will be answered by our relevant personnel within 24 hours.

*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.

 

After-Sales Service

*We will monitor the logistics information in real time and will share the information with you.

* You can consult us at any time if you have any questions about the product, and we will answer you in time.

*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.

Shipping:

1. ≤50kg, we recommend express delivery, usually called DDU service;

2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;

3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;

4. For high-value products, please choose air and express to ensure the safety of the products.

FAQ

Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Learn more about us

Shandong Look Chemical

Contact us for the latest quotation and free samples of Bismaleimide Powder

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