Vulcanization manufacturing and testing method for rubber sample

Abstract

The invention discloses a vulcanization manufacturing and testing method for a rubber sample. The vulcanization manufacturing and testing method includes the following steps that firstly, parameters are set, wherein a computer is turned on, an air compression pump is switched on, meanwhile, a switch on a junction box is stirred to the vulcanization side, the temperature of a test is set to be 185DEG C, and the time is set to be 6 minutes; secondly, warming and preheating are conducted, wherein a die cavity closing mode is selected, warming and preheating are conducted, and the preheating timefor the first time of starting-up is 15 min or long; thirdly, resetting is conducted, wherein after the temperature is stabilized, resetting is conducted, and a die cavity ascends; fourthly, a sampling test is conducted, wherein 5 g-8 g of the rubber sample is taken as the rubber sample test piece, the upper face and the lower face of the rubber sample test piece are covered with high-temperature-resisting release paper, and the rubber sample test piece is placed at the center position of a lower die to be tested; fifthly, data recording is conducted, wherein the data values including the MHmaximum torque, the ML minimum torque, the coking time and the vulcanization time are recorded; and sixthly, subsequent treatment is conducted, wherein the rubber sample test piece is taken out, the die cavity is cleaned, a rubber gasket cannot be scratched, and operation is over. Data are true, and rapidness, simpleness, convenience and high efficiency are achieved; and the high-temperature-resisting release paper is used for covering the upper face and the lower face of the rubber sample test piece so that the phenomenon that the rubber sample is locally heated, and a test result is affectedcan be avoided.

Description

technical field [0001] The invention belongs to the technical field of rubber preparation, and in particular relates to a vulcanization manufacturing and testing method of a rubber sample. Background technique [0002] Rubber (Rubber) refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. Rubber is a completely amorphous polymer, its glass transition temperature (T g) is low, and its molecular weight is often large, greater than hundreds of thousands. The vulcanized butadiene rubber has excellent cold resistance, wear resistance and elasticity, less heat generation under dynamic load, good aging resistance, and is easy to be used together with natural rubber, neoprene, nitrile rubber, etc. [0003] However, there is no ideal method for testing the performance of rubber after vulcanization. ...

AI Technical Summary

Problems solved by technology

[0003] However, there is no ideal method for testing the performance of rubber after vulcanization. Therefore, it is necessary to develop a new manufacturing and testing method for rubber vulcanization.