PVC hard sheet impact tester

In the pharmaceutical industry, polyvinyl chloride (PVC) rigid sheets are one of the core substrates for preparing aluminum-plastic blister packaging (PTP). This type of packaging material that comes into direct contact with drugs not only requires excellent barrier properties and formability, but also its mechanical strength, especially impact toughness, is the key to ensuring the safety and security of drugs during subsequent processing, transportation, storage, and even patient access. If the toughness of PVC hard sheets is insufficient, they are prone to cracking and perforation when subjected to external impact or falling, directly causing the drugs to become damp, oxidized or contaminated, leading to serious quality and safety issues. Therefore, based on internationally recognized scientific methods, precise and reproducible impact resistance testing of PVC rigid sheets has become a crucial step in quality control for pharmaceutical companies, product validation for drug packaging suppliers, and compliance inspections by regulatory authorities.

1、 The principle of dart impact testing and its core value in quality control
This test strictly follows the basic principle of the free dart method and aims to quantify the material's resistance to damage under dynamic impact loads. Its core is to use a dart head of a specified quality and diameter to freely fall from a set standard height and impact the sample held flat by the pneumatic fixture. The test is not just a single pass/damage judgment, but uses a precise "step method" to systematically adjust the dart mass, impact a group of samples, and use statistical methods to calculate the impact energy corresponding to 50% of the samples being damaged. Finally, the toughness of the material is characterized by the observed parameter "impact damage mass" (g). This scientific method isPVC hard sheet impact testerThe quality control value it endows: it can provide objective and comparable performance data for PVC hard sheets with different formulas and production processes (such as rolling process); Guide pharmaceutical companies to develop scientific packaging material warehousing inspection standards; Assist pharmaceutical packaging manufacturers in optimizing formulas and process parameters, while ensuring transparency and barrier properties, to enhance the physical reliability of products, thereby avoiding the risk of drug recalls caused by packaging damage from the source.

2、 Instrument professional design and core technology advantages
To accurately and efficiently execute standard testing methods, this instrument integrates multiple technologies specifically designed for thin film testing:

1. Standard dual method intelligent compatibilityThe instrument supports the A method (applicable to general thin films) and B method (applicable to materials with high impact strength) defined in standards such as GB/T9639.1 and ASTM D1709. Users can select with one click through the 7-inch high-definition HMI touch screen, and the system automatically adapts to the corresponding dart diameter (A method Φ 38mm, B method Φ 50mm) and testing range, making the operation intelligent and convenient.

2. High precision impact release systemBy adopting electromagnetic suction and automatic release mechanisms, the friction and pre oscillation of traditional mechanical release methods are eliminated, ensuring that the dart head impacts the sample in a pure free fall state every time. The test results have good repeatability and strong data comparability.

3. Stable and reliable sample clampingUsing pneumatic clamping method to provide uniform and repeatable clamping force, ensuring that the edges of the sample are firmly fixed and the central area is freely loaded at the moment of impact, simulating the actual stress state in practical applications, and the test data has more reference value.

4. Humanized operation and precise interpretationProvide two startup modes, manual and pedal, to adapt to different testing habits and improve continuous testing efficiency. The device is equipped with a dedicated observation light that can provide sufficient and uniform illumination after impact, assisting the operator in clearly and accurately determining the damage status of the sample and reducing human error.

5. Wide range parameters and high-precision measurementThe impact height covers 660mm and 1500mm, and the dart quality range is wide (50-2000g for method A and 300-2000g for method B), which can meet the testing needs from ordinary thin films to high-strength hard sheets. The measurement accuracy of impact energy is as high as 0.1J (0.1g), which can sensitively distinguish subtle differences in material properties.

3、 Standard compliance and industry application scenarios
The design and calibration of this instrument strictly follow mainstream testing standards to ensure international mutual recognition of data

• Chinese National Standards：GB/T 9639.1-2008

• American Society for Testing and Materials standards：ASTM D1709

• International Organization for Standardization standards：ISO 7765-1:1988

• Japanese Industrial Standards：JIS K7124-1

This makesThis instrumentBecome an important detection tool in the following fields:

• Core applications of pharmaceuticals and pharmaceutical packaging materialsMainly used for impact resistance testing and quality control of composite hard sheets (blister substrates) such as PVC/PVDC and PVC/PE for pharmaceuticals, it is a key equipment for quality monitoring of blister packaging production lines.

• Food and General PackagingSuitable for evaluating the impact resistance of hard sheets, plastic shopping bags, and other composite films used in food packaging.

• Quality Supervision and Research and DevelopmentDrug packaging material testing centers at all levels, product quality supervision and inspection institutes, universities, and research institutions conduct product certification, quality arbitration, new material research and development, and performance comparison studies.

4、 Customized solutions and service extensions
Jinan Xio Electromechanical understands that with the application of new high barrier materials and environmentally friendly materials, standard testing may need to adapt to new requirements. We can provide customized services based on this reliable platform, such as developing specialized fixtures for ultra wide or irregular samples; Adjust testing procedures or data output formats based on specific customer's internal control standards; Or provide integrated testing modules for automated quality control systems.

5、 Conclusion: Using scientific data to create a physical safety barrier for drug packaging
The integrity of drug packaging is the lifeline of drug safety. Conducting precise impact resistance testing on PVC rigid sheets is adding a scientific 'stress test' to this lifeline. Choose Jinan Xio ElectromechanicalPVC hard sheet impact testerNot only has we introduced a precision testing equipment that meets the standards, but we have also chosen a reliable partner dedicated to using professional testing technology and solutions to assist you in consolidating product quality from the packaging material end and enhancing market competitiveness.