3 results about "Hydration reaction" patented technology

The invention relates to a method for carrying out mechanical activating high-concentration pulp grinding in a wet state. The specific steps comprise: adding a weighed pulp into a beaker containing water, adjusting to achieve a to-be-grinded raw material with a concentration of 1-5%, and uniformly stirring for 10 min at a room temperature; and placing the blended raw material and a grinding mediumaccording to a ratio of 100 g:150-250 g into a ball mill, inflating with CO2 gas with a pressure of 0-2 MPa, and grinding for 0.5-3 h at a temperature of 40-120 DEG C to form a pulp, wherein the process after the pulp preparing is the same as the original papermaking process. According to the present invention, the plant pulp is mechanically activated by the high energy ball mill to replace the traditional pulp grinding method, such that the squeezing, rubbing and cross-linking among the plant fibers is performed through the mechanical force so as to improve the pulp refining degree and the fiber kinking index, increase the hydration reaction interface, reduce the water consumption, and significantly improve the cohesion, the folding resistance and the tensile strength of the paper.

The invention provides a preparation method of a welding glue for vehicle manufacturing. The preparation method comprises the following steps: 1) crushing the following raw materials in a formula ratio: epoxy resin, diallyl phthalate, methyl ethyl ketone peroxide, a toughening agent, a viscosity reducer and a plasticizer into powder, and uniformly stirring the substances; 2) adding the uniform powder into a reaction kettle, and then heating the reaction kettle to 120DEG C to obtain a mixed solution in a molten state; 3) adding inert filler into the mixed solution and performing stirring, thenadding polyether amine, calcium silicate hydrate and triglyceride, and performing stirring again to obtain sealant oil-based molten slurry; 4) pouring the sealant oil-based molten slurry into a cooling tower, adding a reinforcing agent, a softening agent and a filling agent, and adjusting the hardness of the welding glue; 5) adding a stabilizer, a moisture absorbent, a pigment and filler, and performing stirring for 15min to form a solid welding glue, and 6) pouring the solid welding glue into a grinding machine, and performing degassing and curing at the end of grinding and dispersing to obtain a welding glue finished product.