Modified polypropylene material with high adhesion and preparation method thereof

Abstract

The invention discloses a modified polypropylene material with high adhesion. The polypropylene material comprises the following raw materials in parts by weight: 60-80 parts of polypropylene resin, 10-30 parts of modified inorganic fillers, 4-8 parts of functional resin, 1-2 parts of epoxy resin, 0.5-1 part of a functional agent, 0.1-0.3 part of a nucleating agent, 0.1-1.0 part of an antioxidant and 0.1-1.0 part of a processing agent. In the modified polypropylene material, universal polypropylene is used as a basic material, so that the polarity of the polypropylene material is greatly improved by adopting a manner of adding the specific functional resin, epoxy resin, a functional agent and modified inorganic fillers and adjusting the ratio of the raw materials, therefore, the material has excellent surface adhesion and can be directly sprayed.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a modified polypropylene material with high adhesion and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a crystalline polymer with a regular structure. It is a white pellet, odorless, non-toxic, and light-weight thermoplastic resin. It has easy processing, impact strength, flex resistance, and good electrical insulation. Advantages, it has a wide range of applications in the fields of automobile industry, household appliances, electronics, packaging, building materials, furniture and outdoor sports. However, due to the non-polar, low surface energy, and non-porous characteristics of ordinary polypropylene materials, its surface adhesion is poor. If the surface of the parts produced by it is not pretreated, it is difficult to paint. The traditional method of spraying paint on the surface of polypropylene products is to spray PP water on the surf...

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Problems solved by technology

However, in the actual production process, the effect of the above schemes is not ideal, and even the effect is not as good as the traditional PP water scheme. Therefore, the polypropylene material that can be directly sprayed without pretreatment will have a good application prospect

[0004] Patent CN101787158A discloses a polypropylene material that can be directly sprayed and its preparation method, and patent CN102532696A discloses a polypropylene composition with high surface tension and its preparation method, both of which use PP alloyed with other resins However, the PP alloy material has problems such as complex production process, high material density and high cost.