What is a melt flow rate testing machine?
Melt Flow Rate Tester (Melt Flow Rate Tester, referred to as MFR or MVR) is a special equipment used to measure the melt flow properties of thermoplastics under specific temperatures and loads. It is one of the indispensable instruments in the quality control, material development and production process of the plastics industry. This article will combine the hot topics on the Internet in the past 10 days to give you a detailed introduction to the principles, applications and market trends of melt flow rate testing machines.
1. Working principle of melt flow rate testing machine
The melt flow rate testing machine heats plastic particles to a molten state and extrudes them through a capillary tube with a specified aperture under a standard weight load to measure the mass or volume of plastic extruded within a certain period of time to calculate the melt flow rate (MFR) or melt volume flow rate (MVR).
| parameters | Description |
|---|---|
| Test standards | ASTM D1238, ISO 1133, GB/T 3682 |
| temperature range | Usually 50-400℃ (adjustable) |
| Load range | 0.325-21.6kg (multiple gears optional) |
| unit of measurement | MFR: g/10min; MVR: cm³/10min |
2. Application fields of melt flow rate testing machine
1.Plastic production quality control: Ensure that the melt flow properties of raw materials and finished products meet standards.
2.R&D and formulation optimization: Help R&D researchers evaluate the impact of different formulations or additives on material flowability.
3.Recycled plastic testing: Evaluating the processing performance of recycled plastics, which is a hot application in recent environmental protection topics.
4.Teaching and research: Used by universities and scientific research institutions for teaching and research in materials science and engineering.
3. Recent market trends and hot topics
According to industry trends in the past 10 days, topics related to melt flow rate testing machines mainly focus on the following aspects:
| Topic classification | Hot content |
|---|---|
| technological innovation | Intelligent MFR testers have become a trend, equipped with touch screens and automatic data recording functions |
| Environmental requirements | Increased demand for MFR testing of recycled plastics in line with circular economy policies |
| Standard updates | Some countries are revising plastic testing standards, affecting MFR testing methods |
| market growth | The Asia-Pacific region has become the fastest growing market for MFR testing equipment |
4. How to choose a suitable melt flow rate testing machine
1.Testing requirements: Select the appropriate temperature and load range according to the type of test material and standard requirements.
2.Accuracy requirements: High-precision testing requires models equipped with electronic balances and automatic cutting devices.
3.degree of automation: Consider whether automatic feeding, automatic testing and data processing functions are needed.
4.Brand and service: Choose brand products with good after-sales service and standard certification.
5. Future development trends
1.Intelligent: The application of IoT technology will make it possible to upload and analyze test data in real time.
2.Multifunctional: One device integrates multiple functions such as MFR, MVR and density testing.
3.Environmentally friendly materials adaptation: Develop special models for the special testing needs of bio-based plastics and recycled plastics.
4.Simplified operation: A more friendly user interface and a more streamlined operation process will become product competitiveness.
As an important testing equipment in the plastics industry, the melt flow rate testing machine's technological development and market demand are closely related to the development of the entire plastics industry. With the improvement of environmental protection requirements and the continuous emergence of new materials, MFR testing technology will continue to innovate to provide stronger support for the quality control and research and development of plastic products.
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