Test Background
Automotive safety glass chemical corrosion resistance test can determine the chemical corrosion resistance of plastic-glass composite materials, rigid plastics and flexible plastics during vehicle use.
Zhongke Testing Reliability Experiment Center has the capability to test the reliability performance of various automotive parts and provides professional chemical corrosion resistance testing services for automotive safety glass.
Scope of tests
There are three main types of common automotive glass on the market: tempered glass, laminated tempered glass and laminated area tempered glass.
Test method
1. Soaking method
1) Pour each specified chemical reagent into 5 vessels respectively. The amount of solution should be enough to completely immerse the sample. Immerse the sample in the chemical reagent for 1 minute, then take it out and dry it immediately with a clean absorbent cotton cloth. Check whether the sample is softened, sticky, cracked or obviously devitrified.
2) After the test, take one piece of the rigid plastic used in the driving visual area and conduct a cross-hatch test according to the test method, and determine the adhesion level. A new sample should be used for each chemical reagent.
2. Weight-bearing method
1) After applying a load to the sample, use the specified brush to apply the specified chemical reagent on the surface of the sample above the fulcrum. The brush should be moistened after each application.
2) Apply paint every 1 s along the length of the sample for a total of 10 times. Painting of the ends and edges of the specimen should be avoided. Use a clean absorbent cotton cloth to dry the sample 1 minute after the painting is completed, and check whether the sample is softened, sticky, cracked or obviously devitrified.
3) After the chemical corrosion resistance test of the rigid plastic used in the driving viewing area, take one piece and conduct a cross-hatch test according to the test method, and record the adhesion level. A new sample should be used for each chemical reagent.
Test standard:
GB/T 5137.5-2002 Test methods for automotive safety glass Part 5: Chemical attack resistance and temperature change resistance test
GB/T 5137.1 Test methods for automotive safety glass Part 1: Mechanical property test
QC/T 1119 Automobile safety glass terminology
