CAS 38742-70-0 DU Type Thermoplastic Microspheres Dry Powder Blowing Agent for Plastic Extrusion
CAS 38742-70-0 DU Type Thermoplastic Microspheres are dry powder thermally expandable blowing agents specially developed for plastic extrusion processes. The microspheres remain stable at normal processing temperatures before extrusion. When reaching the designated temperature range during extrusion, they expand evenly to form fine closed-cell structures inside plastic substrates. It delivers stable foaming effect, effectively reducing product density and saving raw materials. Featuring good dis
CAS 38742-70-0 DU Type Thermoplastic Microspheres Dry Powder Blowing Agent for Plastic Extrusion
Product Overview
DU Type Thermoplastic Microspheres CAS 38742-70-0 is dry powder thermally expandable blowing agent optimized for plastic extrusion. The microspheres keep stable under low temperature, without premature expansion during feeding and mixing. When heated to target temperature inside extruder, microspheres expand uniformly to form dense closed-cell structure.
It realizes lightweight modification of extruded plastic products, lowers material density and cuts raw material cost. It offers smooth product surface, stable foaming rate and good compatibility with multiple thermoplastics. It avoids large holes, bubbling and surface defects, being a reliable foaming additive for plastic extrusion production.
Core Features
- Dry powder form, easy feedingFree-flowing powder, suitable for automatic feeding system of extrusion equipment.
- Controllable expansion temperatureStable performance in mixing stage; expand uniformly within designed temperature window.
- Fine closed-cell foam structureProduce even tiny cells, support smooth surface of extruded profiles.
- Wide thermoplastic compatibilityCompatible with PP, PE, PVC, TPE and other common extrusion plastics.
- Reduce density & save costEffectively lower finished product weight and decrease raw material consumption.
- Low residual odor & eco-friendlyPhysical foaming mechanism, less volatile substances, meet general environmental requirements.
Product Specifications
Product Name: DU Type Thermoplastic MicrospheresCAS No: 38742-70-0Appearance: White free-flowing dry powderFunction: Foaming, lightweight filling, density reduction for extruded plasticsApplicable Process: Plastic extrusionRecommended Dosage: 0.5%–3% based on total plastic formulation
Application Scope
Suitable for foaming extrusion of PP, PE, PVC, TPE and other thermoplastics. Widely applied in plastic profiles, extruded sheets, sealing strips, foaming tubes, lightweight decorative materials, automotive interior extruded parts and building plastic accessories.
Usage Guide
Mix DU type microspheres with plastic pellets evenly before feeding. Adopt low-speed mixing to prevent microsphere shell damage. Control extruder temperature strictly according to expansion parameters to avoid early foaming or insufficient expansion. Adjust addition amount and processing temperature based on target foaming ratio. Seal package tightly to prevent moisture absorption.
Packaging & Storage
Packaging: Moisture-proof composite bags or fiber drums with inner plastic liner.Storage: Keep in cool, dry and ventilated warehouse. Avoid moisture, heavy extrusion and direct sunlight.Shelf Life: 12 months under proper storage conditions.
Our Advantages
DU series microspheres feature narrow expansion temperature range, stable foaming performance and consistent batch quality. Specially adjusted for extrusion process to reduce surface defects. Factory direct supply, sufficient stock, free sample testing and processing technical support available to optimize your extrusion foaming formula.
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