Polyolefin complete transparent master batch and preparation thereof

Abstract

The invention discloses a polyolefine full transparent master batch and a preparation method thereof; wherein, the weight percentage of the components of the polyolefine full transparent master batchis as follows: 70 to 80 percent of glauber salt, 4 to 15 percent of linear low density polyethylene, 4 to 10 percent of ethylene vinyl acetate copolymer, 2 to 3 percent of polyethylene wax, 1 to 2 percent of soap salt, 0.5 to 1 percent of fatty acid and 1 to 2 percent of a coupling agent. The preparation method of the master batch of the invention includes the following steps: after being added into a highly mixing machine, stirred with high speed and heated to 110 DEG C, the glauber salt is added with the coupling agent for three times for coating; then the polyethylene wax, soap salt and thefatty acid are sequentially added; then the linear low density polyethylene and the ethylene vinyl acetate copolymer are added, mixed uniformly and discharged; the components are transferred into a crusher to be cooled and crushed; finally, the premixed materials are extruded into granular master batches in a co-rotating twin screw extruder with the length-diameter ratio of 36 to 48. The polyolefine full transparent master batch has lower density, good dispersion, opening property and color, excellent optical property and very high economy and is widely used in blow-molded, extrusion and injection-molded products.

Description

Technical field: [0001] The invention relates to a polyolefin fully transparent masterbatch and a preparation method thereof, and belongs to the technical field of masterbatch manufacturing in which inorganic powders and polymer materials are combined. Background technique: [0002] Worldwide, polyethylene and polypropylene are the two most widely used basic resins in plastic products. About one-half of all plastic products. In 2007, China consumed about 20 million tons of polyethylene and polypropylene. On the one hand, with the increasing awareness of environmental protection, the voice of seeking to solve white pollution is gradually rising, and inorganic powder modified high molecular polymer is an effective method. For example, the national standard of Japanese convenience bags requires that the calcium carbonate content must be more than 30%, which not only saves limited petroleum resources, but also is conducive to environmental protection. Incineration does not emi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a polyolefin fully transparent masterbatch and its preparation method, through which the polyolefin fully transparent masterbatch can be produced, and the masterbatch can solve the problem of the decline in mechanical properties and the color and luster of plastic products after using the filled masterbatch. The problem of change, especially the problem of decreased light transmittance, increased haze, and serious whitening of film products