1, What is curing?
The word "cure" has its historic, natural rubber products due to the initial use of sulfur as a crosslinking agent is named, along with the development of the rubber industry, you can now use a variety of non-sulfur crosslinking agent. Therefore, curing more scientific significance should be "crosslinking" or "bridging", i.e., the process of linear polymer formed by crosslinking a polymer mesh. From the properties of the rubber that is converted to an elastic rubber plastic or hard rubber process. Meaning of "curing" includes not only the actual cross-linking process, the method further comprises generating crosslinking.
2, why the skeleton of a different material layers can not mix?
In the non-forming conveyor belt core skeleton layer mix different materials, such as the elongation of different materials as nylon, polyester, cotton, polyester fibers, there is a great difference in tear strength, heat shrinkage rate, etc., mix with a conveyor belt in the skeleton layer will cause tension in the conditions of use no overall maximum strength, tearing occurs first single phenomenon but can not guarantee overall protection products tensile strength factor. Again, different material mix sometimes occur due to the use of gum paste rub flow rate differences lead to delamination between layers, reduce product life.
3, ordinary canvas with heat which is better?
This kind of conveyor belt canvas basically are the following: mixed woven cotton canvas, cotton canvas polypropylene filament, polyester filament cotton canvas, high DTY mixed woven canvas. In more than four years of canvas, polyester filament woven cotton canvas and cotton canvas mixed comprehensive quality is the best. However, in contrast to thermal aging and adhesion of polyester filament than ordinary cotton canvas and cotton canvas, aging 200 ℃ 45 minutes polyester canvas interwoven through rate dropped to about 30% strength, polyester mix woven canvas strength decrease rate of about -4%; weight of sulfur in three experiments, and the overall strength decrease rate are much lower than the rate of decrease in elongation mixed woven cotton canvas and the adhesive strength is slightly higher than the polyester mixed woven cotton canvas, so we preferred choice with skeleton layer of polyester filament in an ordinary cotton canvas with a core heat.