Heat-resistant and low-migrating organic smooth opening agent and master batch prepared from opening agent

Abstract

The invention discloses a heat-resistant and low-migrating organic smooth opening agent which is obtained by mixing of, by weight, 25-50wt% of component A, 25-50wt% of component B and 25-50wt% of component C. The component B refers to pentaerythritol fatty acid ester, the component B refers to one or two selected from ethylene bis oleamide and stearyl erucic acid amide, and the component C refers to one or two selected from behenamide and polymethyl methacrylate; ethylene bis oleamide and stearyl erucic acid amide are in the mass ratio of 2:1-1:2 when used simultaneously; behenamide and polymethyl methacrylate are in the mass ratio of 2:1-1:2 when used simultaneously. A carrier-free opening-agent master batch obtained with the above formula has the advantages of smoothness, opening, lubricating, demolding and no folding out of the surface in plastics, and the opening agent is resistant to high temperature to 350DEG C, low in migration and uniform in dispersion and is used for preparing the heat-resistant and smooth plastic master batch.

Description

technical field [0001] The invention relates to the technical field of preparation of plastic masterbatches, more specifically, to a high-temperature-resistant, low-migration organic slippery anti-blocking agent and a masterbatch prepared from the anti-blocking agent. Background technique [0002] Plastic raw materials can only be made into plastic materials through processing. The most commonly used methods for forming (thermoplastic) under high temperature conditions are extrusion, injection molding, calendering, casting, blow molding, blister and thermoforming. Plastic materials have the advantages of light weight, high strength, excellent electrical properties, easy processing and molding, and bright colors, so they have become the most active field of material systems, and their applications in other fields are also expanding. From people's daily necessities, medical , agriculture and fishery, automobile, electrical and chemical construction, defense industry, aerospace...

AI Technical Summary

Problems solved by technology

[0005] At present, the masterbatches on the market use oleic acid amide or erucic acid amide, as well as talcum powder, silicon dioxide, ultrafine calcium carbonate and barium sulfate in the preparation process, so that the prepared masterbatches have a certain Color, large amount added, poor hand feeling

In addition, the masterbatch made of oleic acid amide or erucic acid amide should generally be used at a temperature not higher than 260°C, and its high temperature resistance is poor; and its migration range is too large

[0006] At present, oleic acid amide and erucic acid amide are generally used as slip agents, and the addition amount is extremely low 1 to 3‰ (the dispersion effect is poor in this way), and it is easy to migrate and precipitate on the surface of the product and is not resistant to high temperature. ℃ will decompose more than half, so there will be limitations in use, many high-temperature materials cannot be used, and the general products that need to be printed will not be printed due to precipitation, and the precipitation will also lead to composite film products that cannot be laminated, and it will take a long time Stored long glued together etc.