PE anti-aging functional master batch and preparation method thereof

Abstract

The invention discloses a PE anti-aging functional master batch. Total 100 parts by mass of the PE anti-aging functional master batch is prepared from, by mass, 25-75 parts of PE resin, 15-25 parts of uvioresistant agent, 0-20 parts of antioxygen and 0-50 parts of filling powder. The invention further discloses a preparation method of the master batch. The method comprises the steps that 1, the PE resin, the uvioresistant agent, the antioxygen and the filling powder are weighed according to the ratio of the composition raw materials and mixed to be uniform in a high-low-speed mixer; 2, the mixed raw materials are added into a single screw extruder or a twin-screw extruder to be extruded and then diced; 3, natural cooling evaporation or low-temperature drying is selected according to the water content of the diced functional master batch. The PE anti-aging functional master batch has the advantages that the uvioresistant agent content of the anti-aging functional master batch is high, the use addition is small, the anti-aging effect equivalent to that of an existing product can be achieved simply by adding 2-4 parts of the master batch to every 100 parts of resin, and the performance of the resin is not influenced after adding.

Description

technical field [0001] The invention relates to an anti-aging functional master batch, in particular to a PE type anti-aging functional master batch and a preparation method thereof. Background technique [0002] Plastics are prone to aging due to external sunlight, oxygen, damp heat, etc. Plastic aging will cause plastics to lose their use value and cause huge economic losses. The existing production methods of anti-aging functional materials are as follows: [0003] 1. After adding anti-ultraviolet light agent to the resin, it is directly processed. This method will easily lead to uneven dispersion of anti-ultraviolet light agent in the product and cause abnormalities in the product. Fewer places where the material is more prone to aging. [0004] 2. After the resin is added with an anti-ultraviolet agent, it is extruded and pelletized by a single-screw extruder or a twin-screw extruder, and then processed into a finished product. This method is effective, but the cost i...

AI Technical Summary

Problems solved by technology

[0003] 1. After adding anti-ultraviolet light agent to the resin, it is directly processed. This method will easily lead to uneven dispersion of anti-ultraviolet light agent in the product and cause abnormalities in the product. Fewer places where the material is more prone to aging

[0004] 2. After the resin is added with an anti-ultraviolet agent, it is extruded and pelletized by a single-screw extruder or a twin-screw extruder, and then processed into a finished product. This method is effective, but the cost is high. When the extruder is extruded, the resin needs to be processed at high temperature, and the new material becomes a secondary material, so it will affect the performance of the resin

[0005] 3. In the preparation process of the existing anti-aging functional masterbatch, adding a large amount of anti-ultraviolet light agent to the resin will easily cause the screw of the twin-screw extruder to not eat material during processing, and the broken strips cannot be pelletized, resulting in the machine not operating normally. Therefore, it is impossible to prepare an anti-aging functional masterbatch with a high content of anti-ultraviolet light agent