What are the requirements for the color of PP masterbatch?

The color materials used in PP masterbatch must pay attention to the matching relationship between color materials and plastic raw materials and additives.

(1) The coloring material cannot react with the resin and various auxiliary agents, and has strong solvent resistance, small mobility, and good heat resistance. That is to say, the masterbatch cannot participate in various chemical reactions. If carbon black can control the curing reaction of polyester plastic, carbon black can not be added to the polyester.

Since the molding temperature of the plastic product is high, the coloring material used for the PP masterbatch should not decompose and discolor under the molding heating temperature condition. Single inorganic pigments have good heat resistance, and organic pigments and dyes have poor heat resistance. This should be paid enough attention when selecting colorant varieties.

(2) The dispersibility and coloring power of the colorant should be good. When the color material is unevenly dispersed, it will affect the appearance performance of the product; when the coloring power of the color material is poor, the amount of the color material will increase and the material cost will increase. The dispersibility and tinting strength of the same color material in different resins are not the same, so pay attention to this single point when selecting the color material.

The particle size of the colorant used in the PP masterbatch is also related to the dispersibility. The smaller the particle size, the better the dispersibility and the strong coloring power.

(3) It should be understood that other properties of colorants, such as plastic products used in food and children's toys, should be non-toxic; for plastic products used in electrical appliances, colorants with good electrical insulation should be selected; For outdoor plastic products, colorants with good weathering resistance should be selected. The color materials used must pay attention to the matching relationship between the color materials and the plastic raw materials and additives.

After several years of development, Lu'an Qingsong Masterbatch Co., Ltd. has many advanced production lines and various testing equipments. It specializes in the production of non-woven masterbatch, polypropylene masterbatch and other materials. , BCF and other PP masterbatch, also produces a variety of environmentally friendly masterbatch, functional masterbatch, blown film masterbatch, injection masterbatch, engineering plastic modified masterbatch and enhanced masterbatch, sincerely cooperate with domestic and foreign merchants ,Develop together!