Today, the company officially launched its new generation of high-performance MDO (longitudinal tensile) testing machine. This equipment is specifically designed for the research and development and process optimization of high-end functional films such as biaxially oriented polyethylene (BOPE). With a stretching ratio of up to 10 times, precise roller temperature control at 200℃, and high process customizability, it provides materials scientists and process engineers with a powerful research tool, marking another significant breakthrough for my country in the field of polymer materials experimental equipment.
BOPE (biaxially oriented polyethylene) film, due to its excellent mechanical properties, high transparency, and good barrier properties, has become one of the key materials in flexible packaging, new energy, electronics, and special industries. Its performance largely depends on the orientation and crystallization behavior during the stretching process, especially the control precision in the longitudinal stretching stage. The testing machine launched by Putong Instruments is a professional device specifically designed for precise simulation and in-depth analysis of this core process step.
The equipment adopts a modular and continuous process design, fully covering the entire process of unwinding → peeling → preheating → moving stretching → secondary preheating → moving stretching → annealing → cooling → traction → winding → deflash removal.
- Stretch Capacity: The equipment supports a stretch ratio of up to 10:1, far exceeding the commonly available 4x or 6x stretch ratio equipment, providing a broad process window for developing ultra-thin, ultra-high-strength BOPE films.
- Precise Temperature Control System:The rollers utilize oil circulation heating, with a temperature control range covering room temperature to 200°C. Higher temperatures can be achieved through optional technology, ensuring temperature uniformity and stability throughout the preheating and annealing stages. This is crucial for obtaining ideal molecular orientation and crystal morphology.
- Flexible Process Adaptability: The equipment supports single-point, dual-point, and even multi-point stretching. The roller spacing is continuously adjustable from 2.5mm to 200mm, even achieving "zero-gap" stretching, effectively reducing the "necking" effect of the film and improving product uniformity.
- Each functional roller group is driven by an independent servo motor, achieving centralized control via a high-performance PLC and a 10-inch touchscreen.
- Speed adjustment is precise, and operation is intuitive.
Application Areas:
- Green Packaging: Provides process data support for the development of recyclable, single-material BOPE high-performance packaging, helping companies respond to environmental policies and sustainable development needs;
- New Energy and Electronics: Supports research on stretching processes for specialty films such as flexible battery separators and optical display films, improving product performance consistency;
- High-End Barrier Materials: Facilitates process optimization for high-barrier packaging films in food and pharmaceutical industries, extending product shelf life and reducing material consumption;
- Industrial and Specialty Films: Drives performance improvements and process innovations in products such as synthetic paper, industrial tape base films, and environmentally degradable films.
About Us
POTOP Co., Ltd. has long been focused on the research, development, manufacturing and service of polymer material processing and testing analysis instruments. It is committed to providing high-performance and high-reliability experimental solutions for universities, research institutes and enterprises, and promoting technological progress and industrial upgrading in the materials industry.
