Test Background
Most vulcanized rubber is often used in low-temperature environments, such as automobile sealing strips, rubber waterstops, isolation rubber bearings, sealing rings, etc. Reliable data must be available on the characteristics and low-temperature brittleness of vulcanized rubber. The low-temperature brittleness test of vulcanized rubber can determine the lowest temperature at which vulcanized rubber will not undergo brittle failure when subjected to impact under specified conditions.
Zhongke Testing Reliability Experiment Center has the ability to test the reliability performance of various vulcanized rubbers and provides professional low-temperature brittleness testing services for vulcanized rubber.
Scope of tests
In terms of its vulcanization method, vulcanized rubber can be roughly divided into:
1) Flat vulcanizing machine vulcanization: flat tapes such as conveyor belts and transmission belts;
2) Vulcanizing tank vulcanization: rubber hoses, rubber rollers, rubber shoes, air bags, rubber strips, tapes, roller coatings, pipe linings, cables, etc.;
3) Continuous vulcanization: sealing strips, pure rubber hoses, wires and cables, etc.
Test method
Single sample method: Use a single sample brittleness temperature testing machine to measure the brittleness temperature of vulcanized rubber and determine whether the vulcanized rubber will be damaged after being impacted at a specified temperature. It includes two procedures:
Procedure A is suitable for determining the brittleness temperature;
Procedure B is suitable for impacting the sample at the specified temperature to determine whether damage occurs.
Test standard:
GB/T 1682-2014 Vulcanized rubber - Determination of low temperature brittleness - Single sample method
GB/T5470-2008 Determination of embrittlement temperature of plastics by impact method
GB/T 15256-2014 Determination of low-temperature brittleness of vulcanized rubber (multi-sample method)
GB/T 12584-2008 Rubber or plastic coated fabrics Low temperature impact test
ASTM D2137-2010 Test method for embrittlement point of flexible polymers and their coated fabrics
ASTM D746-2007 Test method for determining the embrittlement temperature of plastics and elastic materials using the impact method
JIS K7216-1980 Test method for low temperature embrittlement of plastics
JIS K6261-2006 Determination of low temperature properties of vulcanized or thermoplastic rubber
ISO 812-2006 Determination of low temperature brittleness of vulcanized rubber or thermoplastic rubber
ISO 974-2000 Plastics Determination of brittleness temperature by impact method
