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3M™ Matrix Resin 3831

Part Number 38313M Product Number 38313M ID 70006718822
  • Provides exceptionally high strength and durability
  • Shear modulus and tensile modulus allow for stronger, lighter and more durable parts
  • Hardness enables less scuffing, scratching and erosion and better part aesthetics
  • Exotherm improves ability to cure thicker parts
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Specifications
Attribute Name
Value
Application
Cabin Components
Brand
3M™
Color
Off-White
Industries
Aerospace
Net Weight (Imperial)
25 lb
Product Form
Pound
Product Details
  • Provides exceptionally high strength and durability
  • Shear modulus and tensile modulus allow for stronger, lighter and more durable parts
  • Hardness enables less scuffing, scratching and erosion and better part aesthetics
  • Exotherm improves ability to cure thicker parts
  • Enhanced prepreg suitable for composite manufacturing requiring standard tack
  • Medium tack epoxy resin cures at 120°C

3M™ Matrix Resin 3831 is a 36 wt% silica content nanocomposite epoxy resin system designed for use in composite prepreg manufacturing processes. Our proprietary matrix technology allows nanoparticles in between each carbon fiber, significantly increasing both shear modulus and fracture toughness.

3M™ Matrix Resin 3831, a 36 wt% silica content nanocomposite epoxy resin system designed for use in composite prepreg manufacturing processes, was developed using our advanced, proprietary nanoparticle technology that enables significantly higher loadings of uniformly dispersed nanoparticles. The resulting high performance formula yields tougher composites with higher shear elasticity to meet specifications in the aviation industry.

3831 is a high performance, off-white epoxy prepreg for use in carbon fiber composites that is compatible with prepreg lay-up processes. Carbon fiber reinforced composite designs containing 3M™ Matrix Resin 3831 have exceptionally high strength and composite compressive properties. This offers composite engineers greater design flexibility in optimizing the strength, weight and performance of carbon fiber prepreg structures. 3M™ Matrix Resin 3831 also features increased composite shear modulus and fracture toughness. The hardness enables less scuffing, scratching and erosion which results in better part aesthetics. Composites made with this matrix resin can be cured at temperatures from 250°F to 300°F, and the exotherm improves ability to cure thicker parts.

The Simple Secret
Carbon fiber composite products are limited by their compression strength. Under compressive loading, carbon fibers can micro-buckle (like a small wrinkle) resulting in breakage or failure of the composite product.

We successfully created a resin with a high concentration of uniformly dispersed nanoparticles that makes a stronger composite. These nanoparticles are so tiny, they can uniformly surround and support the carbon fibers, significantly increasing the shear modulus of the resin and effectively delaying the micro-buckling of the carbon fibers. The greater the nanoparticle loading, the stiffer the support of the carbon fiber. Where other nanotechnologies (like carbon nano tubes) deliver <3% nanoparticles loading, our proprietary technology uniquely enables loadings of >40% of uniformly dispersed nanoparticles. Conventional-sized fillers are simply too large to completely surround the fibers and difficult to disperse uniformly in the resin. With 3M™ Matrix Resin 3831, the exceptional bond between the particle and the resin hinders crack proliferation by creating a complex path that effectively dissipates energy. The result: tougher composites.

Learn More about 3M™ Matrix Resins (PDF, 1.17 Mb)

Strength Two Ways
3M significantly increases resin shear modulus while simultaneously adding fracture toughness. In the past, attempts to increase resin stiffness resulted in a significant decrease in fracture toughness, producing very brittle materials. 3M's proprietary nanoparticles technology creates such a strong bond between the particle and the resin that energy is dissipated when the composite is stressed, preventing crack propagation.

Our Best for Your Best
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Creating efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants and other products that effectively reduce costs on multiple fronts. Professionals across the industry know the cost-saving advantages of 3M™ Aerospace. Our brand is widely recognized for the highest standards of quality and performance and adds value to the final results. By engineering reliability, longevity and performance into all of our products, we have a history of saving money by reducing waste, rework and time.

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