Polymer material failure analysis core online testing center

Date：2022-03-08 14:00:00Views：1018

Polymer material failure analysis service

Through comprehensive analysis and testing methods, Chuangxin online testing center can help customers analyze the failure causes of polymer materials and composites, provide scientific basis for fracture, cracking, corrosion and discoloration of polymer materials, cracking and delamination of composite materials in scientific research and production, and conduct fracture analysis, composition analysis, mechanical property comparison Thermal performance comparison, failure recurrence / verification and other tests, so as to provide a basic basis for material selection and use.

Polymer materials can be divided into natural polymer materials and synthetic polymer materials according to their sources. Natural macromolecules are macromolecular substances existing in animals, plants and organisms. They can be divided into natural fiber, natural resin, natural rubber, animal glue and so on.

Synthetic polymer materials mainly refer to plastic, synthetic rubber and synthetic fiber. In addition, they also include adhesives, coatings and various functional polymer materials. Synthetic polymer materials have superior properties that natural polymer materials do not have: small density, high mechanics, wear resistance, corrosion resistance, electrical insulation and so on.

The general development trend of polymer material technology is high performance, high function, compound, intelligent and green. Because of the new requirements of technology and the high requirements of products, it is necessary to find the root cause and mechanism of failure by means of failure analysis, so as to improve product quality, process improvement and responsibility arbitration.

The failure modes of polymer materials include fracture, cracking, delamination, corrosion, blistering, coating falling off, discoloration, wear failure and so on.

Common methods for failure analysis of polymer materials:

1. Composition analysis:FTIR, Raman, SEM / EDS, XRF, GC-MS, PGC-MS, NMR, AES, XPS, XRD Time of flight secondary ion mass spectrometry (TOF-SIMS);

2. Thermal analysis:Differential scanning calorimetry (DSC), thermomechanical analysis (TMA), thermogravimetric analysis (TGA), dynamic thermomechanical analysis (DMA), thermal conductivity (steady-state heat flow method, laser scattering method), etc;

3. Cracking analysis:Pyrolysis gas chromatography-mass spectrometry, gel permeation chromatography (GPC), melting index test (MFR), etc.

4. Fracture analysis:Scanning electron microscope (SEM), X-ray energy spectrometer (EDS), etc;

5. Physical performance analysis:Hardness tester, tensile testing machine, universal testing machine, etc.

Reference standard

GB / T 16778-2009 general procedure for failure analysis of fiber reinforced plastic structural members

IEC 60812-2018 failure mode and effect analysis (FMEA and FMECA)

NF l90-200-30-02-2015 aerospace product warranty Failure mode analysis (FMEA / ECA)

DB51 / T 1723-2014 guide for failure analysis of metal components of motor vehicles

SY / T 6945-2013 guidelines for failure analysis of petroleum pipes

Sn / T 3109-2012 failure analysis procedure of metal components in imported equipment

ASTM g161-2000 (2013) Standard Guide for corrosion related failure analysis

QJ 3065.5-1998 management requirements for component failure analysis

QJ 1906-1990 procedures and methods for destructive physical analysis and failure analysis of semiconductor devices