PVC circulating supporting plate for bricklaying and production process thereof

Abstract

The invention discloses a PVC circulating supporting plate for bricklaying. The PVC circulating supporting plate for bricklaying is composed of the following raw material formula in parts by mass: 70-90 parts of PVC, 20-30 parts of calcium carbonate, 0.5-1 part of a flame retardant, 0.5-1.5 parts of a lubricant and 1-3 parts of a lead salt stabilizer, wherein the PVC contains returned material reuse particles, and the returned material reuse particles account for 30%-50% of the total amount of the PVC. The raw materials are mixed, subjected to extrusion molding and then sheared into specifications required by the process. By means of the mode, the production cost of the supporting plate can be effectively reduced, a damaged supporting plate after being damaged can be used as a supporting plate raw material to be regenerated after being crushed, resource recycling and comprehensive utilization are achieved, and resource waste is reduced.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a PVC circulating pallet for bricklaying and a production process thereof. Background technique [0002] With the development of the times, unburned bricks are more and more widely used in the construction industry due to their excellent performance and environmentally friendly technology, and unburned bricks need to use separate pallets in the production to prevent the newly produced bricks from being completely finished. During the hardening process, the brick body is damaged due to the rotation action. The commonly used brick-laying pallets are generally made of wooden or bamboo-wood structure plywood. These two types of pallets are generally multi-layer structures, and because bamboo and wood are both Hydrophilic materials are easy to deform and warp in hot and humid environments, and cannot meet the flatness requirements of the bricklaying machine for the pallet. Generally ...

AI Technical Summary

Problems solved by technology

[0002] With the development of the times, unburned bricks are more and more widely used in the construction industry due to their excellent performance and environmentally friendly technology, and unburned bricks need to use separate pallets in the production to prevent the newly produced bricks from being completely finished. During the hardening process, the brick body is damaged due to the rotation action. The commonly used brick-laying pallets are generally made of wooden or bamboo-wood structure plywood. These two types of pallets are generally multi-layer structures, and because bamboo and wood are both Hydrophilic materials are easy to deform and warp in hot and humid environments, and cannot meet the flatness requirements of the bricklaying machine for the pallet. Generally speaking, they are easy to be damaged and have a short life. Pallets made of high-quality materials, but such pallets are generally produced by injection molding. The process route has high requirements on raw materials, and the amount of plasticizer added in the raw materials is large, resulting in low hardness of the board surface.