| Project Background

The glass fiber content is the core control parameter for the mechanical properties of glass fiber reinforced plastics, directly affecting the rigidity, dimensional stability of products and the design of the injection molding process. Accurate measurement is crucial for the lightweight design of structural components in new energy vehicles (such as the load-bearing capacity of battery brackets), cost control and supply-chain quality verification.

| Project Overview

In this test, the calcination method and the chemical dissolution method were used. The calcination method removes the resin matrix at high temperature, and after acid treatment to ash the mineral components in the ash, only the acid-insoluble glass fibers are obtained, and the glass fiber content is calculated.

| Test Objective

1. Meeting industry standard requirements and verify compliance;

2. Research and innovation;

3. Failure analysis and root cause tracing.

| Testing Standards

ISO 1172 Textile-glass-reinforced plastics - Prepregs, moulding compounds and laminates - Determination of textile-glass and mineral-filler content - Calcination methods

GB/T 2577 Test method for resin content of glass fiber reinforced plastics

| Service Products / Fields

Consumer electronics, automotive electronics, automotive parts, plastics industry, chemical industry, biodegradable materials, etc.

| Project Advantages

1. DSC: The test temperature range is from -150°C to 600°C. It has advantages such as fast speed, small sample usage, and simple sample preparation, but it is easily affected by thermal history and curing time;

2. TMA: The test temperature range is from -100°C to 900°C. It has advantages such as high sensitivity and convenient sample preparation, but it requires the material to have a sufficiently high viscosity above Tg, and the surface should be smooth and parallel. Secondly, it is affected by the thermal history of the sample and the possible softening point;

3. DMA: The test temperature range is from -100°C to 400°C. It is the most sensitive method for determining Tg. There is no need to eliminate the thermal history of the material, but it has relatively strict requirements on the sample size and is suitable for determining the Tg of some highly crystalline and highly cross-linked composite materials and filled materials.

| MTT Advantages

1. Professional Team: A team of highly experienced testing engineers and technical experts.

2. Advanced Equipment: Equipped with internationally leading testing instruments to ensure accuracy and reliability of results. High precision and accuracy, authoritative methods, wide scope of application (applicable to prepregs, molding compounds, laminates, and materials containing inorganic fillers, etc.).

3. Efficient Service: Rapidly respond to customer needs and provide one-stop, high-efficiency inspection services.

4. Authoritative Certification: The laboratory is certified by ISO/IEC 17025, ensuring that test reports have international credibility.