Article List

• How To Select Additives for Plastics

  This article outlines four key considerations when selecting plastic additives. First, the compatibility between additives and polymers is crucial to ensure uniform mixing and long-term stability. Second, additives must withstand the processing conditions, especially high temperatures. Third, the synergy or antagonism between multiple additives can significantly impact performance. Finally, the intended use of the plastic product—such as food packaging or medical applications—places strict requirements on the toxicity and extractability of the additives.

  Material Introduction June 19, 2025
• What To Do When Resin Degradation Pollutes Material in A Single Screw Extruder? Analyze And Adjust Screw Elements To Solve It!

  This article explains how to identify and resolve resin degradation in single screw extruders. Resin degradation, often caused by stagnant flow and high temperatures, leads to product contamination. The solution involves step-by-step screw removal, inspection, and design analysis—especially addressing issues like small thread radii, improper groove dimensions, and poorly designed mixing elements that cause Moffatt eddies and stagnation. Preventive measures include proper screw design, temperature control during shutdowns, and avoiding deep or narrow grooves that trap resin.

  Products Release June 16, 2025
• Why Recycled Plastic Is More Expensive Than Virgin Plastic? 3 Key Reasons Explained

  This article explains why recycled plastics are often more expensive than virgin plastics, highlighting three main reasons: high processing costs, the need for property-enhancing additives, and expensive certifications. Despite the higher price, companies use recycled plastics to meet environmental regulations, improve ESG image, and satisfy global market demands.

  Material Introduction June 12, 2025
• Types of Twin-Screw Extruders: How To Choose Based on Material, Production Scale, And Efficiency

  This article outlines the main types of twin-screw extruders—classified by screw rotation direction, structure, engagement, purpose, and size—and explains how to choose the right model based on material characteristics, production scale, and efficiency needs. It emphasizes that factors like screw design, speed, temperature control, and process parameters significantly affect output and performance.

  Products Release June 09, 2025
• Why Is Recycled Plastic Praised But Not Popular?

  Although recycled plastics are seen as a key solution to pollution and circular economy goals, they face limited adoption due to high costs, weak policies, technical bottlenecks, market resistance, and low consumer acceptance. Breaking through requires stronger regulations, technological innovation, supply chain coordination, and consumer incentives to shift from "concept popularity" to real market demand.

  Material Introduction June 05, 2025
• Understanding The Side Vacuum Exhaust System: What You Need To Know

  This article explains the advantages of side vacuum exhaust systems in plastic extrusion. Unlike traditional top-mounted systems, side vacuum systems prevent material overflow by positioning the vacuum port laterally, improving process stability and reducing maintenance. It also clarifies that a stable negative pressure—not higher vacuum strength—is key to effective degassing. Factors such as temperature control, screw speed, and screw design also significantly impact performance. The side vacuum system is especially suitable for high-volatility materials where reliability is critical.

  Products Release May 29, 2025
• Principles of Screw Configuration in Different Process Sections of A Twin-Screw Extruder

  This article explains the principles of screw configuration in different sections of a twin-screw extruder. It outlines five key process zones—feeding, melting, mixing, venting, and metering—and describes the role of various screw elements such as conveying screws, kneading blocks, and mixing threads. It emphasizes that selecting the right screw combination based on material properties and processing needs is essential for achieving high product quality and efficient operation.

  Products Release May 26, 2025
• The “Longevity” Secret of Barrels And Screws: How To Resist The Deadly Damage of Corrosive And High-Temperature Resins

  This article explores how to extend the lifespan of barrels and screws in plastic processing equipment by addressing two major threats: corrosive resins (like PVC and fluoropolymers) and high-temperature wear. It introduces effective strategies such as using corrosion-resistant materials, matching thermal expansion coefficients, and applying anti-wear coatings like tungsten alloy and Colmonoy. It also emphasizes regular maintenance, including clearance checks and timely repairs, as key to preventing damage. A case study demonstrates how these measures significantly improved equipment durability and reduced operational costs.

  Products Release May 22, 2025
• Key Factors Determining The Quality of Black Masterbatch

  The quality of black masterbatch is primarily determined by four key factors: dispersion, coverage, flowability, and compatibility. High dispersion ensures uniform color and optimal performance, especially for fine films and fibers. Strong coverage is crucial for masking recycled material colors, requiring high-tint carbon black. Good flowability ensures smooth molding, while poor rheology can cause defects. Lastly, using high-quality carrier resins ensures compatibility and avoids processing issues. Together, these factors determine the masterbatch’s performance, cost-efficiency, and application reliability.

  Material Introduction May 19, 2025
• Key Advantages of Kneading Machines in High-Loading Pigment Processing

  This article highlights the key advantages of kneading machines in processing high-loading pigments such as carbon black and high-oil-absorption colorants. Compared to twin screw extruders, kneading machines offer superior pigment wetting, better dispersion uniformity, and greater process flexibility due to their adjustable low-shear mixing capabilities. They are especially effective in applications requiring extended mixing times and can be combined with twin screw extruders for optimized results. Kneading machines are widely used in producing high-end masterbatches, conductive materials, and specialty coatings, offering enhanced product quality and energy efficiency.

  Products Release May 15, 2025