Surface Modified Montmorillonite CAS 1318-93-0 is organically modified layered silicate nanoclay.
Surface modification greatly enhances compatibility with epoxy resin matrix, enabling nanoscale exfoliation and homogeneous dispersion. The lamellar structure effectively inhibits crack propagation to boost material toughness. Meanwhile, it works as an efficient flame retardant synergist, restraining heat transfer, suppressing flammable volatile release and lowering smoke emission during combustion

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Surface Modified Montmorillonite CAS 1318-93-0

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Product Overview

Surface Modified Montmorillonite CAS 1318-93-0 is organically modified layered silicate nanoclay manufactured via cation exchange modification of natural montmorillonite.

Raw sodium montmorillonite is hydrophilic and poorly compatible with epoxy resin. After surface organic modification, the material turns organophilic, greatly improving interfacial affinity with various epoxy systems. Under sufficient stirring, ultrasonic treatment or heating, stacked silicate sheets can be exfoliated into nanoscale lamellae and uniformly dispersed inside epoxy matrix. The layered structure hinders crack propagation to achieve remarkable toughening effect. Meanwhile, it serves as an efficient flame retardant synergist. During combustion, nanoclay sheets promote the formation of dense, continuous carbon char layers, blocking heat transfer and volatile flammable gas diffusion, lowering smoke release and improving fire safety. It is a multifunctional nanofiller that simultaneously optimizes mechanical performance and flame resistance for epoxy resin composites.

Product Properties

This product is fine off-white powder with complete layered crystal structure. It has excellent compatibility with bisphenol A epoxy, aliphatic epoxy and different amine curing agents. It can realize nanoscale exfoliation under matched dispersion technology. Low heavy metal and impurity content prevents pinholes, bubbles and surface defects in epoxy castings and coatings. It maintains stable structure within conventional epoxy curing temperature range. Its toughening and flame-retardant synergistic performance will not degrade after long-term service.

Core Advantages

Organic surface modification. Effectively solve poor compatibility between unmodified montmorillonite and epoxy resin matrix.
Outstanding toughening capacity. Suppress crack expansion, promote stress transfer, raise impact strength and fracture toughness of epoxy materials.
Excellent flame retardant synergism. Facilitate compact char layer formation, reduce peak heat release and smoke density, cut consumption of primary flame retardants.
Improved barrier & thermal performance. Boost thermal dimensional stability and enhance resistance against moisture and corrosive medium penetration.
Wide processing adaptability. Applicable for epoxy casting, anti-corrosion coatings, electronic encapsulation, carbon fiber prepreg and composite molding.
Cost-effective formula solution. Multiple performance improvements can be realized at low addition dosage.

Main Applications

Surface Modified Montmorillonite acts as toughening agent and flame retardant synergist for epoxy resin composites. Typical application fields:

Flame retardant epoxy structural composite materials
High-performance epoxy anti-corrosion protective coatings
Electronic & electrical epoxy potting and encapsulating compounds
Carbon fiber / glass fiber epoxy prepregs
High temperature resistant epoxy casting components
Construction fireproof epoxy materials and adhesives

Usage Guidance

Adopt high-speed mechanical stirring or ultrasonic dispersion to achieve full nanoclay exfoliation before mixing with epoxy resin.

Recommended addition dosage: 1 wt% – 4 wt%, adjust loading according to target toughness and flame retardant requirements.

Proper pre-drying treatment is suggested to eliminate absorbed moisture.

Optimize stirring speed, mixing temperature and curing procedure to avoid incomplete exfoliation and agglomeration.

Carry out small-batch sample trial and performance testing before mass formulation production.

Packing & Storage

Standard package: 25kg kraft paper bag with inner PE waterproof liner. Test samples are available on request.

Seal packaging tightly after opening. Store in cool, dry, ventilated warehouse. Avoid dampness, long-term sunlight exposure. Prevent heavy extrusion during transportation to avoid powder caking.

Our Service

We provide stable bulk supply of Surface Modified Montmorillonite CAS 1318-93-0. Modifier type and surface activity can be customized according to customer formula requirements. Free lab samples are offered for research and development. Our technical team provides professional support on dispersion process, epoxy formula optimization and composite molding parameter adjustment.

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Surface Modified Montmorillonite CAS 1318-93-0 Toughening and Flame Retardant Synergist for Epoxy Resin

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.