CAS 38742-70-0 High Temp Thermoplastic Microspheres with 20–40μm particle size are expandable physical foaming additives for plastic lightweight modification. Featuring narrow particle size distribution, the microspheres expand evenly under high-temperature processing to form fine closed-cell structure inside polymer substrates. They deliver remarkable weight reduction and lower raw material costs while maintaining favorable mechanical properties and dimensional stability of plastic products. Wi

Product Detail

CAS 38742-70-0 High Temp Thermoplastic Microspheres for Plastic Weight Reduction 20-40μm Particle Size

Product Overview

CAS 38742-70-0 20-40μm High Temp Thermoplastic Microspheres are fine-particle physical foaming and lightweight fillers customized for high-end plastic modification. With a precise and narrow 20-40μm particle size distribution, the microspheres feature uniform particle fineness and excellent dispersibility. Under high-temperature thermoplastic processing conditions, the microspheres expand stably and evenly to form dense, fine closed-cell structures inside plastic substrates. This product effectively reduces material density and realizes significant weight reduction, lowering raw material consumption and production costs. It maintains outstanding mechanical properties, smooth surface finish and high dimensional stability of finished plastic parts. With superior heat resistance and wide compatibility with various thermoplastic resins, it is a premium lightweight additive for injection molding, extrusion and calendaring plastic products.

Core Features

20-40μm Uniform Fine Particle Size: Narrow particle size distribution ensures consistent foaming effect in all processing areas. No coarse particles or uneven expansion, delivering ultra-smooth product surface without streaks or particle marks.

Stable High-Temperature Foaming Performance: Excellent thermal resistance adapts to various high-temperature thermoplastic processing environments. Microspheres expand fully without rupture, collapse or premature foaming, ensuring stable batch production.

Superior Lightweight & Cost-Effective: Finer closed-cell structure brings higher lightweight efficiency. It greatly reduces plastic product density and raw material usage while keeping structural strength, effectively optimizing overall production costs.

Excellent Dispersion & Compatibility: Ultra-fine thermoplastic microspheres disperse evenly in all kinds of plastic melts. No agglomeration or precipitation, no negative impact on resin fluidity, hardness, toughness and surface gloss.

High Dimensional Stability: Uniform foaming structure effectively inhibits product shrinkage, warping and deformation during high-temperature processing. Improves finished product yield and dimensional accuracy significantly.

Eco-Friendly Physical Foaming: Pure physical thermal expansion principle, no chemical decomposition, low VOC and low odor. Complies with global environmental standards for industrial and daily plastic products.

Product Specifications

Product Name: High Temp Thermoplastic Expandable Microspheres

CAS No: 38742-70-0

Particle Size: 20-40μm

Product Type: Thermoplastic Foaming Agent, Plastic Lightweight Functional Filler

Appearance: White Ultra-Fine Powder

Applicable Process: Injection molding, extrusion, calendaring, thermoplastic high-temperature molding

Core Function: Plastic weight reduction, density reduction, uniform foaming, surface optimization, cost saving

Recommended Dosage: 1.2%–4.0% (Adjustable according to target lightweight and surface requirements)

Application Scope

Suitable for lightweight modification and fine foaming of various thermoplastic plastic products. Widely used in PP, PE, ABS, PA, PC and modified plastic materials. Ideal for high-surface-requirement plastic parts, lightweight industrial profiles, packaging materials, electronic accessory plastics and daily-use plastic products. Especially suitable for fine foaming scenarios that demand smooth surface, uniform texture and high dimensional stability.

Usage Guide

Mix 20-40μm thermoplastic microspheres with plastic raw materials evenly via low-speed stirring at room temperature. Avoid high-shear stirring and excessive preheating to prevent microsphere damage and premature foaming. Perform standard thermoplastic molding processes including injection, extrusion and calendaring. Complete stable thermal expansion and fine closed-cell forming during high-temperature processing. Adjust microsphere dosage, processing temperature and speed according to product lightweight standard and surface quality requirements. 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 a 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 20-40μm high temp thermoplastic microspheres feature precise particle size screening, narrow size distribution and ultra-stable foaming performance. The fine particle design ensures ultra-smooth surface of foamed plastic products and uniform internal cell structure, achieving higher lightweight efficiency than conventional microspheres. We support factory direct sales, stable bulk supply, free sample testing and professional plastic modification technical services, helping customers produce high-quality lightweight plastic products and gain market advantages.

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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.