Views: 1 Author: Site Editor Publish Time: 2025-06-12 Origin: Site
Plastics span a vast range of properties — from flexible films to rigid structural components. Effective material testing is crucial to verify performance attributes such as tensile strength, impact resistance, thermal behavior, and chemical compatibility before plastics enter the marketplace.
Core Testing Techniques
Tensile, Compression, and Flexural Tests: Universal testing machines evaluate mechanical properties, providing stress–strain curves that reveal yield points, ultimate strength, and modulus values.
Impact Testing: Charpy and Izod testers determine energy absorption and notch sensitivity, important for applications where sudden shocks may occur.
Thermal Analysis:
Differential Scanning Calorimetry (DSC) measures melting and crystallization behavior, informing processing parameters.
Thermogravimetric Analysis (TGA) tracks weight loss under heat, indicating thermal stability and filler content.
Hardness Measurement: Rockwell, Shore, and Vickers methods gauge surface hardness for rigid and semi-rigid polymers.
Environmental Stress Cracking (ESC): Fixtures immerse specimens in chemicals under static loads to identify cracking tendencies and predict service life.
Equipment Features
Modular Grips and Fixtures: Interchangeable jaws accommodate films, fibers, sheets, and molded parts up to 100 kN capacity.
Precision Sensors: ±0.1% load accuracy and ±0.01 mm displacement resolution ensure reliable measurement.
Temperature Control Options: From –50 °C environmental chambers to high-temperature ovens (up to 400 °C) for specialty polymers.
Software Integration: Centralized platforms manage multi-instrument data, perform statistical analysis, and generate traceable test certificates.
Industrial Applications
Packaging: Verifying puncture resistance, seal integrity, and barrier properties of films.
Automotive: Testing dashboard plastics, bumpers, and under-hood components for thermal and mechanical stability.
Medical Devices: Ensuring biocompatibility and sterilization resistance of polymer housings, tubing, and implantable parts.
Electronics: Evaluating insulative plastics and cable jackets for dielectric strength and heat deflection.
Client Collaboration
From laboratory turnkey setups to staff training and routine calibration, Shijiazhuang Zhongshi Testing Machine Co., Ltd. offers end-to-end solutions. Customized test protocols align with ASTM, ISO, GB, and industry-specific standards, ensuring data relevance for certification and design validation.