Introduction

Polymer materials, including plastic films, shrink sleeves, packaging labels, and industrial yarns, are widely applied in food packaging, medical supplies, electronic manufacturing, and industrial processing fields. Thermal shrinkage performance serves as a core indicator to evaluate the dimensional stability and thermal adaptability of polymer products. When exposed to high-temperature environments, polymer materials are prone to thermal contraction and dimensional deformation, which directly affects the fitting accuracy, sealing performance and service life of finished products.

Our thermal shrinkage tester is a professional precision testing instrument independently developed for the thermal shrinkage characteristics of flexible polymer materials. Adopting mature constant-temperature heating technology and high-precision measurement algorithms, this equipment can accurately detect the thermal shrinkage rate and shrinkage force of various materials after standardized high-temperature treatment. It provides reliable quantitative data for material research and development, factory quality inspection, and product batch verification, helping enterprises strictly control product quality and meet international industry testing standards.

Working Principle

The working principle of the thermal shrinkage tester is based on standardized high-temperature simulation testing. Firstly, prepare the sample according to specification and record the original dimensional parameters accurately. Place the qualified sample in a constant-temperature heating chamber with precisely controlled temperature, and conduct constant-temperature heat preservation according to preset test parameters including temperature and duration. After the heating process is completed and the sample is cooled to room temperature, the equipment’s high-precision sensing module automatically measures the dimensional changes of the sample.

The system automatically calculates the transverse and longitudinal thermal shrinkage percentage of the sample through built-in professional algorithms, and generates visualized test data reports. The whole testing process simulates the high-temperature environment that materials may encounter in production, processing and actual use, truly reflecting the thermal shrinkage stability of materials under actual working conditions.

Testing equipment：RSY-R2 Thermal Shrinkage Tester

Core Product Features

1. High-precision Constant Temperature Control System

Equipped with industrial-grade high-sensitivity temperature sensors and intelligent PID temperature adjustment technology, the tester realizes precise and stable temperature control with a temperature control accuracy of ±0.1℃. The uniform internal heating environment eliminates local temperature deviation, ensuring consistent heating conditions for each test sample and effectively improving the repeatability and accuracy of test results. It supports wide-range temperature adjustment to meet the testing requirements of different polymer materials.

2. Accurate & Stable Testing Performance

Configured with high-precision load cells and laser measurement modules from well-known international brands, the equipment achieves a testing accuracy higher than 0.5%FS. It can precisely capture tiny dimensional changes of samples, effectively avoiding manual measurement errors. Multiple test speed modes are optional, adapting to the testing standards of different materials and realizing efficient and standardized testing operations.

3.Multi-scenario Compatibility & Standard Compliance

This equipment fully complies with mainstream international testing standards such as ASTM D2732, ASTM D4974 and EN 13844. It is applicable to thermal shrinkage testing of various materials including plastic packaging films, heat-shrinkable sleeves, PVC labels, industrial filament yarns and flexible composite materials. It supports simultaneous testing of multiple samples, greatly improving laboratory testing efficiency and meeting the batch testing demands of industrial production.

Main Applications

The thermal shrinkage tester is widely used in quality inspection and R&D testing of multiple industries. In the packaging industry, it is used for performance testing of heat-shrinkable packaging films, beverage label sleeves and food sealing films to ensure stable shrinkage effect and perfect fitting of packaging products. In the chemical and new material industry, it provides data support for the formula optimization and performance improvement of new polymer materials. In the fields of medical supplies, electronic accessories and industrial textiles, it is applied to detect the dimensional stability of flexible materials under high temperature, ensuring the safety and applicability of products in high-temperature processing and use scenarios.

Conclusion

With its precise testing performance, intelligent operation system and wide industry adaptability, our thermal shrinkage tester has become a preferred testing device for polymer material quality control laboratories and production enterprises. It effectively helps users accurately evaluate the thermal stability of materials, optimize production processes, reduce product defective rates, and provide standardized and reliable technical support for product quality upgrading and market compliance certification. We adhere to rigorous industrial manufacturing standards and provide customers with high-precision testing equipment and professional one-stop testing solutions.