CAS 38742-70-0 DU Type Thermoplastic Microspheres are dry powder physical blowing agents optimized for plastic extrusion processing. Supplied in unexpanded dry state, these microspheres achieve controllable thermal expansion during extrusion and form homogeneous closed-cell structures inside plastic matrix. They effectively lower product density and cut raw material costs while maintaining good mechanical performance and surface quality of extruded profiles. Featuring excellent flowability, stab

Product Detail

CAS 38742-70-0 DU Type Thermoplastic Microspheres Dry Powder Blowing Agent for Plastic Extrusion

Product Overview

CAS 38742-70-0 DU Type Thermoplastic Microspheres are professional dry powder physical blowing agents specially optimized for plastic extrusion processing. Featured with pure dry unexpanded powder state, the microspheres remain stable at room temperature and will not foam in advance during raw material mixing and feeding. Under continuous high-temperature and high-shear extrusion conditions, they achieve uniform and controllable thermal expansion, forming dense, independent closed-cell structures inside plastic substrates. This product effectively reduces the density and weight of extruded plastic products, lowers raw material consumption and production costs, and maintains excellent surface smoothness, structural toughness and dimensional stability of extruded profiles. With outstanding powder fluidity, strong extrusion process adaptability and stable batch consistency, it is a high-quality lightweight foaming additive tailored for plastic extrusion industry.

Core Features

Professional Formula for Plastic Extrusion Process

DU type thermoplastic microspheres are precisely customized for continuous extrusion production lines. It adapts to the high-speed shearing and temperature fluctuation characteristics of extrusion molding, with stable expansion performance and no abnormal foaming, perfectly matching industrial continuous production requirements.

Dry Powder & Stable Storage Performance

Adopts pure dry unexpanded powder form with excellent anti-caking and free-flowing properties. No pre-expansion during long-term storage and room-temperature mixing, ensuring stable feeding and consistent foaming effect in long-cycle extrusion production.

Uniform Closed-Cell Foaming & Smooth Surface

The microspheres expand evenly during extrusion, forming fine and dense closed cells inside the products. Effectively avoid surface bubbles, streaks, pits and other defects, ensuring high-gloss and flat surface quality of extruded plastic profiles.

Excellent Shear Resistance & Low Breakage Rate

Reinforced microsphere shell structure resists strong shear force of extrusion screw, with ultra-low particle breakage rate. It avoids uneven foaming and local density difference, ensuring uniform overall performance of extruded products.

Efficient Lightweight & Cost Reduction

Small dosage brings significant lightweight and density reduction effect. It greatly saves plastic raw material costs while ensuring the mechanical properties, rigidity and durability of extruded finished products.

Eco-Friendly Physical Foaming

Pure physical thermal expansion foaming, no chemical decomposition, low VOC and low odor. No harmful residues, compliant with environmental protection standards for civilian plastics, industrial profiles and packaging materials.

Product Specifications

Product Name: DU Type Thermoplastic Expandable Microspheres

CAS No: 38742-70-0

Product State: Dry Unexpanded Fine Powder

Product Type: Physical Blowing Agent, Plastic Extrusion Lightweight Filler

Core Application: Special foaming and lightweight modification for plastic extrusion

Applicable Processes: Plastic extrusion molding, profile extrusion, sheet extrusion, pipe extrusion

Applicable Materials: PP, PE, PVC, ABS and other thermoplastic extrusion materials

Key Advantages: Good fluidity, shear resistance, stable foaming, smooth finished surface

Recommended Dosage: 1.0%–3.5% (Adjust according to lightweight target and extrusion process)

Application Scope

Widely used in lightweight foaming modification of various thermoplastic extrusion products. Suitable for plastic extrusion profiles, plastic sheets, plastic pipes, packaging extrusion materials, modified plastic extrusion particles, decorative plastic strips and other products. It solves the industry pain points of heavy weight, high material cost and easy surface defects of traditional solid extruded plastics, and is widely applied in packaging, building materials, industrial plastics and daily consumer goods industries.

Usage Guide

Mix DU type dry thermoplastic microspheres with plastic raw materials evenly through low-speed stirring at room temperature. Avoid high-intensity shear stirring and long-time high-temperature preheating to prevent particle breakage and premature foaming. Put the mixed raw materials into the extrusion production line, and complete stable thermal expansion and uniform closed-cell foaming under matched extrusion temperature. Appropriately adjust microsphere dosage, extrusion temperature, screw speed and feeding amount 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 dry, cool and ventilated warehouse, keep tightly sealed all the time. Avoid direct sunlight, high-temperature stacking and humid environment to prevent caking and spontaneous expansion. Standard shelf life is 12 months under proper storage conditions.

Our Advantages

Our CAS 38742-70-0 DU type thermoplastic microspheres are professionally optimized for plastic extrusion processes, featuring excellent powder fluidity, strong shear resistance and stable foaming performance. The finished extruded products have uniform cell structure, smooth surface and stable physical properties, realizing perfect balance of lightweight effect and cost control. We support factory direct sales, stable bulk supply, free sample testing and professional extrusion foaming formula technical guidance to help customers improve product competitiveness and reduce production costs.

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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.