Polyolefin high-concentration plasticizer master batch, and preparation method and application thereof

Abstract

The invention relates to the technical field of organic polymer materials, in particular to a polyolefin high-concentration plasticizer master batch, and a preparation method and application thereof.The polyolefin high-concentration plasticizer master batch is prepared from the following raw materials: a foamed polyolefin carrier and a plasticizer, wherein the plasticizer is a liquid hydrocarboncompound having a weight average molecular weight of 500-8000, which is measured by gel permeation chromatography. According to the invention, the self-made foamed polyolefin carrier is adopted, and the carrier has a network structure formed by inter-communicating through holes and relatively high porosity and can fully absorb the plasticizer, so the high-concentration plasticizer master batch canbe prepared; the plasticizer master batch has the advantages of small addition amount in a high-molecular material, uniform dispersion, no influence on the performances of the high-molecular material, improvement of the physical performances of the high-molecular material and maintenance of the excellent physical and mechanical performances of the high-molecular material; and the preparation method is simple in process, low in cost and easy to operate.

Description

technical field [0001] The invention relates to the technical field of organic polymer materials, in particular to a polyolefin high-concentration plasticizer masterbatch and a preparation method and application thereof. Background technique [0002] Plasticizers are widely used, not only in many industries such as rubber, plastic film, plastic products, rubber and plastic materials, packaging materials, etc., but also as organic synthesis intermediates and solvents, surfactants, biochemicals, etc. Applications, involving multiple cross-penetrating fields, have a profound impact on the development of all walks of life. [0003] Plasticizers commonly used in polymer materials exist in three forms: pellets, powders and liquids, and most of them are added to polymer materials in the form of masterbatches, which is difficult to achieve uniform dispersion. The traditional preparation method of plasticizer masterbatch is to mix the plasticizer and polymer resin uniformly in the m...

AI Technical Summary

Problems solved by technology

[0003] Plasticizers commonly used in polymer materials exist in three forms: pellets, powders and liquids, and most of them are added to polymer materials in the form of masterbatches, which is difficult to achieve uniform dispersion

The traditional preparation method of plasticizer masterbatch is to mix the plasticizer and polymer resin uniformly in the mixer, melt and extrude through the twin-screw extruder, and then granulate. This method has great limitations. : 1. It is difficult for plasticizers to disperse uniformly in polymer materials, especially powder and liquid antifogging agents; 2. For plasticizers with lower melting points or poor thermal stability than During the processing of the twin-screw extruder, it will be decomposed in advance, so that the whole material cannot achieve the effect of plasticization; 3. The addition of plasticizer will easily cause the screw to slip, making the extrusion process unstable and increasing the difficulty of processing; 4. 1. The content of plasticizing ingredients in the plasticizing masterbatch is not high, and the plasticizer molecules are easy to migrate, resulting in a decrease in the mechanical properties of the product

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