In the mixing of rubber and plastics using an open mill, the problem of roller sticking not only severely slows down production efficiency but also makes cleaning time-consuming and labor-intensive. Furthermore, repeated roller sticking can cause localized overheating of the rubber compound, thus affecting the mixing quality. So, why does roller sticking occur? In most […]
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Comprehensive Analysis of Extruders: Working Principle, Classification, Structure, Application Industries, and Selection Guidelines An extruder, fully known as a screw-type plastics extruder, is the core primary equipment in the field of polymer material processing. It is often hailed as the “machine tool of the plastics processing industry.” Its core principle is to use the rotational
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What is the R&D value of PET/PP spinning? The answer may not lie in the laboratory, but in the end-application fields of seven major industries. HALU’s laboratory twin-screw melt spinning machine is helping customers in various industries quickly transform new material formulations into evaluable fiber samples. Packaging Industry: Biodegradable PBAT/PLA flat and monofilament yarns for
Laboratory Twin-screw Melt Spinning Machine Application Read More »
Researchers working on new materials have all experienced this: They painstakingly produce a sample in the lab using a desktop spinning extruder, and the performance seems promising. However, when they confidently prepare to scale up the production line, the resulting product either lacks strength, has a rough surface, or simply cannot be extruded. Upon investigation,
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Longitudinal streaks are one of the most troublesome problems in cast film machine experiments—periodic or random patterns appear along the traction direction, sometimes fine like sharkskin, sometimes coarse and twisted. Many people’s first reaction is “the die is clogged” or “the material is bad,” and then they blindly clean and change materials, but the problem
Why do your cast film always have vertical stripes? Read More »
I. Comparison of blown film characteristics of three biodegradable materials Material Melt strength Thermal stability Difficulty PLA Low Poor (easily hydrolyzed and thermally degraded) The membrane bubble is prone to shaking, has large lateral shrinkage, and the membrane is brittle. PBAT medium better Highly adhesive, prone to sticking, and difficult to roll up. PBS Low/medium
Guide to Optimizing Material and Process Parameters for Blown film Read More »
I. Technical Principles and Advantages for hot melt extrusion Hot melt extrusion (HME) technology utilizes thermodynamic and kinetic principles to transport, shear, melt, and mix active pharmaceutical ingredients (APIs), polymer carriers, and functional excipients within a heated barrel using intermeshing screws. This forms a uniform and continuous melt, which is then extruded through a die
Application of hot melt extrusion technology in pharmaceutical solid dispersions Read More »
When desktop extruders are mentioned, many people immediately think of “3D printing filament machines.” However, by changing the die head and auxiliary equipment, the same desktop extruder can produce cast films, blown films, sheets, granulation, and even melt spinning. This is the concept of a “desktop polymer processing platform” advocated by Hartek. I. Universal Main
Desktop Extruder For Blown Film, Wire and Granulation Read More »
Amidst the wave of innovation in the food industry, reconstituted rice is gaining widespread attention as an emerging food ingredient. However, the high costs and low efficiency resulting from repeated trials in the formulation development of reconstituted rice have become a key bottleneck restricting technological breakthroughs for enterprises. To address this need, Hartek’s lab twin-screw
Recombinant Rice Formulation – Lab Twin-Screw Extruder Read More »
When developing polymer films, blown film machine lines are used. Laboratory blown film machines are divided into single-layer and multi-layer types. The R&D team needs to select the technology according to its own needs. Single-layer vs. multi-layer co-extrusion blown film experimental lines: How to choose according to R&D needs? The following content provides an objective
Selection Guide for Single-Layer and Multi-Layer Co-Extrusion Blown Film Machine Read More »
In university polymer materials laboratories and corporate R&D centers, banbury mixers (also known as closed-loop rubber mixing mills) are core equipment for research on the blending and modification of plastics, rubber, and elastomers, filler dispersion, and reactive processing. A suitable laboratory banbury mixer should not only accurately reflect the mixing behavior of materials but also
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When conducting research and development on new materials, processes, or formulations in the laboratory, ensuring experimental efficiency and scalable reproducibility of data during sample preparation is crucial. As the core equipment for sample preparation, the performance adaptability of the laboratory twin-screw granulation line directly impacts the research results. When selecting a lab twin-screw granulation line,
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What’s Lab Two Roll Open Mixing Mill? A laboratory two roll open mixing mill is a small, specialized laboratory piece of equipment used to process or prepare rubber or plastic mixtures. Its structure is similar to that of an industrial mixer, but it is smaller and typically processes only a small amount of raw material
Choosing A Right Lab Two Roll Open Mixing Mill Read More »
Lab Twin Screw Extrusion Granulation Line Shipped A small-scale lab twin screw extrusion granulation line from Hartek has been shipped to Anhui Province. Installation, commissioning, and technical training have been completed, and it has been officially delivered to the customer for use. Below are photos of the on-site installation and operation. Equipment Core Parameters and
Lab Twin Screw Extrusion Granulation Line Shipped Read More »
Hartek cordially invites you to the 23rd Vietnam International Rubber and Plastics Industry Exhibition (VietnamPlas 2025) in 2025. At the exhibition, our company will showcase our desktop blown film machine and demonstrate our technological achievements in the field of miniaturized and intelligent plastic machinery. Exhibition Information: The desktop blown film machine showcased here is a
Hartek in Vietnam plas 2025 Read More »
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