Green color master batch for PPR pipes and pipe fittings and preparation method and application thereof

Abstract

The invention provides a green color master batch for PPR pipes and pipe fittings and a preparation method and application thereof. According to the invention, carrier resin is adopted as a matrix, and agglomeration is avoided and the processing difficulty is reduced by adding green powder with a certain particle size and a dispersing agent. By improving the components, the compatibility of the color master batch and the resin matrix is improved, the dispersity of the color master batch is improved, furthermore, the green color master batch can be used for preparing products such as PPR pipes and pipe fittings, precipitation is not prone to occurring, and the weather resistance, low-temperature brittleness and mobility of the products are improved. The green color master batch for PPR pipes and pipe fittings can be widely applied to preparation of water supply plastic materials.

Description

technical field [0001] The invention relates to the technical field of plastic materials for water supply, and more specifically, relates to a green color masterbatch for PPR pipe fittings and its preparation method and application. Background technique [0002] PPR pipes and pipe fittings are made of sanitary grade random polypropylene resin (PPR) as the main raw material. It is an excellent water supply plastic material with excellent physical and chemical properties, chemical corrosion resistance, high impact strength, and small fluid resistance. The flow rate of cast iron pipe is increased by 30%, the service life is long, and the service life is not less than 50 years. It is an ideal material for building cold and hot water supply. In the preparation process, color master powder is usually added, but the compatibility between color master powder and PPR is poor , leading to the decline in the performance of PPR pipes and pipe fittings, which brings difficulties in appli...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of poor dispersibility of the existing green color masterbatch in PPR polymer resin, resulting in stress concentration, poor weather resistance and easy precipitation in the obtained product, and to provide a green color masterbatch for PPR pipe fittings. Color masterbatch, which has excellent dispersibility. In the process of preparing PPR pipes and fittings, it has good compatibility with the resin matrix and reduces stress concentration. The prepared PPR pipes and fittings have good weather resistance and are not easy to precipitate

Images