Natural Rubber Tensile Test

The determination of the tensile properties gives more results than only the elongation such as the following rubber properties.

Natural rubber tensile test. Standard specification for natural rubber nr technical grades. The tensile strength the stress that is needed to break the rubber sample. The specification describes two test methods a and b. Astm d412 d 412 covers the tensile properties of thermoset rubbers and thermoplastic elastomers.

What is the tensile strength of rubber. Therefore the standardized tensile tests for laminated rubber bearings natural rubber bearing high damping. D3157 05 2020 standard test method for rubber from natural sources color. Testing natural rubber by alek vare 61 3 1 introduction and history 61 3 2 sampling and sample preparation by astm d 1485 63 3 3 technical grades and basis for classification by astm d 2227 64 3 4 methods for chemical analysis of natural rubber by astm d 1278 65 3 4 1 percent dirt 66 3 4 2 volatile matter 66.

If you are going to perform this test you should read the entire specification from astm. Marks are made 1 inch apart and the median of three thickness measurements is used in calculating the cross sectional area. D3184 11 2018 standard practice for rubber evaluation of nr natural rubber d3194 17. At max and at break.

Chapter rubber compound and vulcanizate testing is related to the chapter on rubber raw material testing and provides a comprehensive description of the system of testing rubber compounds materials and vulcanizates starting from sampling and testing vessels up to evaluation of test results according to specific standards. The stiffness of rubber the stress needed to strain a rubber sample a specific percentage. The tensile strength of rubber indicates how much force or stress a rubber material can. Elastomer research testing bv is an independent and iso 17025 accredited research and test laboratory which offers a wide range of methods to determine rubber properties such as the tensile strength of rubber.

D2449 88 2020 standard specification for rubber bales from natural sources limit on coating. The natural rubber is the most often used type of mixture of the rubber industry nowadays which is produced from the milk like fluid from latex of certain tropical trees. Tensile test elastomeric materials astm d412 glove tensile test aged and unaged astm d3578. On the characteristics of laminated rubber bearings subjected to tensile load has been studied.

But neither testing methods for the tensile characteristics nor the shapes of specimens are standardized. Method a is common and can be performed on a universal testing machine tensile testing machine.