Extreme Temperature Expandable Microspheres CAS 38742-70-0 serve as high-performance weight reducers tailored for advanced composite materials. The microspheres sustain stable expansion under harsh high-temperature processing conditions and form fine closed-cell structures within composite matrix. They deliver prominent lightweight effect and lower raw material costs while maintaining mechanical strength, thermal stability and dimensional precision of composite components. Boasting outstanding h

Product Detail

Extreme Temperature Expandable Microspheres CAS 38742-70-0 Advanced Composite Material Weight Reducer

Product Overview

Extreme Temperature Expandable Microspheres CAS 38742-70-0 are high-performance lightweight weight reducers specially developed for advanced composite materials. Designed to withstand rigorous high-temperature compounding and molding processes of advanced composites, these microspheres maintain complete particle structure and consistent expansion performance under extreme thermal conditions. Fine, uniform and independent closed-cell structures are formed inside composite matrix, achieving remarkable weight reduction and lowering raw material expenditure. While realizing lightweight modification, the product preserves excellent mechanical strength, thermal stability and dimensional accuracy required for high-end composite parts. With exceptional heat resistance, outstanding shear resistance and wide compatibility with various composite formulations, it acts as a premium functional additive for advanced composite components.

Core Features

Excellent Extreme Temperature Resistance

Optimized shell structure provides reliable thermal endurance. Microspheres expand evenly without premature foaming, particle rupture or cell collapse during high-temperature processing, supporting continuous automated mass production of composite materials.

Superior Shear Resistance & Low Breakage Rate

Enhanced particle toughness resists intense shear force during mixing, extrusion and compression molding. Minimal broken particles effectively avoid surface defects such as pits, voids and uneven foaming, meeting strict appearance standards for high-precision composite products.

Efficient Weight Reduction & Cost Optimization

Dense closed-cell structure delivers stable lightweight effect. It reduces material consumption and comprehensive production costs without sacrificing mechanical properties, heat resistance and structural rigidity of composite components.

Broad Compatibility with Composite Systems

Ultra-fine powder disperses uniformly in multiple thermoset and thermoplastic composites without agglomeration. It will not damage interfacial bonding between resin and reinforcing fillers and has little negative impact on overall composite performance.

Improved Dimensional Stability

Uniform foaming structure relieves internal stress generated during curing and molding, effectively inhibiting shrinkage, warpage and deformation, greatly raising finished yield of precision composite parts.

Environmentally Friendly Physical Foaming Technology

Works based on pure physical thermal expansion mechanism, no chemical decomposition, low odor and low VOC. Complies with environmental standards for aerospace, new energy and automotive advanced composite materials.

Product Specifications

Product Name: Extreme Temperature Expandable Microspheres

CAS No: 38742-70-0

Product Type: Advanced Composite Material Weight Reducer, High Temperature Foaming Additive

Appearance: White Ultra-Fine Powder

Applicable Processes: High-temperature compounding, compression molding, injection molding for composites

Applicable Materials: Thermoplastic composites, thermoset composites and modified advanced composite materials

Core Function: Composite lightweight modification, weight reduction, density lowering, raw material cost control

Recommended Dosage: 1.0%–3.5% (Adjust according to lightweight target and composite performance requirements)

Application Scope

Suitable for lightweight modification of various advanced composite materials. Widely applied in new energy vehicle composite structural parts, aerospace lightweight components, industrial high-strength composite brackets, composite panels and high-end transportation composite accessories. It solves the drawbacks of heavy weight, high material cost and poor dimensional stability of solid composite parts, covering new energy, aerospace, automobile manufacturing and high-end industrial composite industries.

Usage Guide

Mix extreme temperature expandable microspheres with composite raw materials evenly by low-speed stirring at room temperature. Avoid high-intensity shear mixing and prolonged high-temperature preheating to prevent microsphere rupture and premature expansion. Adopt matched process parameters according to composite molding technology. Microspheres complete stable thermal expansion and closed-cell formation under suitable processing temperature. Adjust microsphere dosage, processing temperature and mixing speed based on lightweight indicators and surface quality standards. Keep sealed and moisture-proof during production and storage.

Packaging & Storage

Packaging: 25kg sealed moisture-proof composite bag with inner PE liner, dust-proof and leak-proof, suitable for industrial bulk supply and long-distance transportation.

Storage: Store in dry, cool and ventilated warehouse, keep tightly sealed at all times. Avoid direct sunlight, high-temperature stacking and humid environment to prevent caking and spontaneous foaming. Standard shelf life is 12 months under proper storage conditions.

Our Advantages

Our extreme temperature expandable microspheres possess outstanding heat resistance, stable expansion ratio and reliable batch consistency. Uniform delicate closed-cell structure realizes efficient weight reduction for advanced composites while maintaining core mechanical and thermal properties. We support factory direct sales, stable bulk delivery, free sample testing and professional composite formulation technical guidance to help customers develop competitive lightweight composite products.

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