A kind of processing method of polyvinyl chloride coated tarpaulin

Abstract

The invention provides a processing method of polyvinyl chloride coated tarpaulin, relates to the technical field of tarpaulin, and the processing method comprises the following steps: (1) Pulping: mixing polyvinyl chloride paste resin, dioctyl phthalate , Polyurethane, viscosity reducer, tributyl phosphate are mixed and beating to obtain slurry A; (2) Cloth application and slurrying: After the polyester mesh cloth is pressed and rolled, the slurry A is evenly coated on the polyester polyester mesh. Mesh surface and bottom layer; (3) drying: drying the polyester mesh cloth coated with slurry A; (4) film preheating: heating the polyvinyl chloride film to a molten state; (5) bonding : the melted polyvinyl chloride film and the polyester polyester mesh cloth coated with the slurry are heated and pressed to make a coated tarpaulin; (6) cooling and setting: cooling the coated tarpaulin to get final product. The method is simple and efficient, and the prepared polyvinyl chloride coated tarpaulin has high peeling strength between layers, and has excellent performances such as anti-seepage, cold resistance, sunshade and weather resistance.

Description

technical field [0001] The invention relates to the technical field of tarpaulins, in particular to a processing method for polyvinyl chloride coated tarpaulins. Background technique [0002] Polyvinyl chloride tarpaulin is a kind of high-strength polyester canvas as the base cloth, coated with polyethylene paste resin, and then mixed with various chemical additives such as accelerator, anti-fungal agent, anti-aging agent, antistatic agent, etc. , a tarpaulin plasticized at high temperature. Compared with ordinary PE or PP tarpaulin, PVC tarpaulin has better rain resistance and wider application range. It is widely used in automobiles, trains, container roofs, aquaculture and anti-seepage. Therefore, it is particularly important to find a polyvinyl chloride tarpaulin with simple and efficient preparation method and high quality. However, the existing polyvinyl chloride tarpaulin produced by the scraping method usually has the following problems: (1) the molecular differenc...

AI Technical Summary

Problems solved by technology

However, the existing polyvinyl chloride tarpaulin produced by the scraping method usually has the following problems: (1) the molecular difference between the polyvinyl chloride paste and the polyester mesh is relatively large, and the peel strength is low, and the seam peel strength of the finished product after welding Low; (2) The polyvinyl chloride paste for coating and scratching has a large air bubble content, resulting in many air bubbles in the finished product, low water-proof performance, and poor air tightness

However, the paste-like PVC cloth in this patent has relatively poor stability, and lacks weather resistance and sunshade performance.

[0005] Aiming at the problems of the processing method of polyvinyl chloride tarpaulin, such as complex process, raw materials and relatively poor performance, it is urgent to find a simpler and more efficient tarpaulin processing method, so that the polyvinyl chloride prepared by this method The tarpaulin has excellent performances such as anti-seepage, cold resistance, sunshade and weather resistance.

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