A polymerization kettle for the production of pvc plastic anti-impact agent

Abstract

The invention discloses a polymerization kettle for the production of PVC plastic anti-impact agent, relates to the technical field of polymerization kettles, and comprises a polymerization kettle body. There is a material distribution mechanism, the two ends of the outer wall of the polymerization kettle body are equipped with a driving mechanism, and the inside of the polymerization kettle body is provided with a two-way mixing component, and the material distribution mechanism includes an installation port opened on the top of the polymerization kettle body , and the inner wall of the installation port is rotatably connected to a hopper through a sealed bearing, and the inner bottom of the hopper is fixedly installed with a hemispherical bump; the present invention can drive the two-way mixing assembly inside the polymerization kettle body to rotate by using a driving mechanism, and at the same time use The linkage function transmits the torque of the end column through the set push-pull rod, and then drives the feeding hopper to rotate, and can use the set material distribution mechanism to achieve uniform feeding treatment.

Description

technical field [0001] The invention relates to the technical field of polymerization kettles, in particular to a polymerization kettle for producing PVC plastic anti-impact agents. Background technique [0002] PVC is the English abbreviation of polyvinyl chloride. It is a polymer formed by polymerization of vinyl chloride monomer (VCM) in the presence of peroxides, azo compounds and other initiators or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is a white powder with an amorphous structure, with a small degree of branching, a glass transition temperature of 77-90°C, and begins to decompose at around 170°C. It has poor stability to light and heat. Decomposition produces hydrogen chloride, which further autocatalyzes and decomposes, causing discoloration and rapid decline in physical and mechanical properties...

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Problems solved by technology

[0004] However, the above-mentioned invention has the following disadvantages: the stirring design of the above-mentioned patent is a conventional shaft-type stirring, and its range of action is relatively fixed. The direction of action is relatively single, resulting in low actual reaction efficiency; on the other hand, the above-mentioned patent lacks a feeding design, which leads to concentrated accumulation of raw materials when feeding, which further reduces the mixing efficiency of the device for materials and increases the reaction time. Therefore, there are certain limitations

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