A strong shear chemical reactor

Abstract

The invention relates to the field of high-molecular polymer reaction devices, and particularly relates to a chemical reactor with high shearing force. The chemical reactor comprises a rack, a material barrel and a screw rod, wherein the material barrel is horizontally fixed on the rack; the screw rod is arranged in the material barrel and is divided into a fusion section screw rod and a feeding section screw rod; a feed port is formed in the material barrel at which the feeding section screw rod is arranged; an opening of the material barrel at which the fusion section screw rod is arranged is connected with a connecting barrel; an inner cavity of the connecting barrel is circular arc-shaped; the connecting barrel is internally provided with a circular arc-shaped grinding rod; the grinding rod and the fusion section screw rod are fixedly connected; the outer surface of the grinding rod abuts against the surface of the inner cavity of the connecting barrel; one end, which is not connected with the material barrel, of the connecting barrel is connected with a high shearing barrel; the high shearing barrel is internally provided with a high shearing screw rod; the high shearing screw rod is connected with the grinding rod; one end, which is not connected with the connecting barrel, of the high shearing barrel is provided with a discharge port. The chemical reactor has the beneficial effects that the generated pressure field is more stable, the extrusion efficiency is higher, and the grafting ratio is also higher due to the adoption of a screw shearing method, thus hot melt adhesive products with high performance are prepared.

Description

technical field [0001] The invention relates to the field of polymer reaction devices, in particular to a chemical reactor with strong shear force. Background technique [0002] Hot melt adhesive, within a certain temperature range, its physical state changes with temperature, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. Because of its strong bonding strength and fast curing speed, it is widely used. In recent years, polyolefin hot melt adhesives, as an important product in the adhesive industry, have shown a good growth momentum. In the international market, the global market demand for hot melt adhesives will increase steadily with the development of the rubber and plastics industry. At present, the main production method of most polyolefin hot melt adhesives is the grafting process of peroxide initiation and twin-screw extrusion. Due to the difficulty in the dispersion of peroxides and...

AI Technical Summary

Problems solved by technology

Vibrating mill, through the vibration of steel balls and the collision between spheres, can make the polymer material be subjected to instantaneous extrusion and impact. The material passes through the contact and collision between the spheres in the vibrating mill, and the probability of being squeezed and collided is limited, and the vibration caused It takes a long time and the impact is limited, so it is difficult to realize industrialization

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