Special master batch of BOPP synthetic paper and preparation method thereof

Abstract

The invention discloses special master batch of BOPP synthetic paper and a preparation method thereof. The master batch comprises the following components by weight percent: 27%-40% of polypropylene resin, 58-70% of functional filler, 0.2%-0.5% of antioxidant, 0.2%-1% of lubricant, 0.2%-0.5% of fluorecent whitening agent and 0.5-1.5% of titanium dioxide powder. The special master batch of BOPP synthetic paper provided by the invention not only has good physical mechanical property, but also excellent separating performance so as to ensure that the packaged matter does not be deformed; in addition, the formed film has nacreous effect, strong decorative performance and good printing performance. The preparation method of the invention adopts side-open type multipoint feeding design, and overcomes the problems that a great deal of premix is needed, the production efficiency is low and the extrusion of master batch is easy to block the filter screen, produce a lot of oil fume and break thefilter screen in the traditional master batch two-step manufacturing process. The preparation method of the invention simplifies the manufacturing process of the preparation method of master batch ofnacreous synthetic paper, increases the production efficiency, reduces the unit energy consumption and greatly improves the quality of master batch, thus having very important practical significance.

Description

technical field [0001] The invention relates to a master batch for BOPP synthetic paper. Background technique [0002] BOPP synthetic paper special masterbatch is a multi-functional material that is made of polypropylene resin and functional filler through extrusion processing, and has both plastic and paper characteristics. Synthetic paper is an environmentally friendly product with the characteristics of light specific gravity, high strength, tear resistance, good printability, shading, UV resistance, durability, economical and environmental protection, etc. Since the production process of synthetic paper is non-polluting, it can be 100% recycled and recycled, which is a major reform of modern paper production. The main component of BOPP synthetic paper masterbatch is calcium carbonate and other functional fillers. When the BOPP film is biaxially stretched, the core layer with the masterbatch will peel off and form countless uniform voids during the stretching process. W...

AI Technical Summary

Problems solved by technology

The disadvantages of this preparation method are high energy consumption, low production efficiency, and poor dispersion of functional fillers. At least 10% of PE wax, mineral oil and other auxiliary dispersants are used in the formula system. These auxiliary agents have ad

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