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Transparent filler masterbatch and preparation method thereof

A filling masterbatch and transparent technology, which is applied in the field of transparent filling masterbatch and its preparation, can solve the problems of low production efficiency, high manufacturing cost, and material leakage, and achieve the effects of improving production efficiency, reducing product cost, and reducing accumulation volume

Inactive Publication Date: 2014-08-27
王萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixing process of conventional masterbatch production is to first add coupling agent to the powder in a high-speed mixer for surface treatment, and then add other materials in a certain order. Since the accumulation of powder materials contains a certain amount of gas, After being muddled by the mixer, it is looser and has a larger accumulation volume. Therefore, the screw cannot feed the mixed material during the twin-screw extrusion process, and serious material leakage will occur, resulting in low production efficiency and high manufacturing cost.

Method used

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  • Transparent filler masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A formula for transparent filling masterbatch, its composition and weight percentage are: transparent additive content 75%-85%, resin content 10%-20%, processing aid content 3%-6%, surface treatment The dosage is 1%-2%. The processing aid with a content of 3%-6% by weight includes 3%-5% of low molecular weight polyethylene wax, 1%-2% of stearic acid and its salts. The transparent additive is a composite powder of two non-metallic minerals with an average particle size of 2-5 microns; wherein, the composite powder is composed of one or more inorganic minerals containing calcium, aluminum, and silicon elements by weight percentage. 4%-15% of A mineral powder, 85%-95% of B mineral composed of one or several inorganic powders containing boron, magnesium, and barium elements, and 1%-2% of surface treatment. In the embodiment, 5% of A mineral, 94% of B mineral, and 1% of surface treatment are taken, and the surface treatment agent is a coupling agent or stearic acid. The re...

Embodiment 2

[0030] Except for the following features, this example is the same as Example 1: 80 parts of transparent additives, 14 parts of polyethylene, 4 parts of low molecular weight polyethylene wax, 1 part of zinc stearate, 1 part of titanate coupling agent share.

Embodiment 3

[0032] Except for the following features, this embodiment is the same as Embodiment 1: 82 parts of transparent additives, 10 parts of polyethylene, 5 parts of low molecular weight polyethylene wax, 1 part of zinc stearate, 2 parts of titanate coupling agent share.

[0033] Compared with the existing transparent additives barium sulfate, talcum powder and sodium sulfate in the market, the transparent additive in the present invention does not turn white and has a transparent effect close to the natural color of resin. Compared with the conventional masterbatch mixing process, the invention uses a certain feeding sequence and reasonable temperature control to make the pretreated mixture have a smaller bulk volume, make the plasticization more sufficient, the output is larger, and the cost is lower.

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Abstract

The invention discloses transparent filler masterbatch. The transparent filler masterbatch is characterized in that the transparent filler masterbatch comprises, by weight, 75%-85% of a transparent additive, 10%-20% of resin, 3%-6% of a processing agent and 1%-2% of a surface treating agent; the transparent additive is composite powder of two nonmetallic minerals with the average grain diameter being 2-5 microns; the processing agent includes low molecular weight polyethylene wax, stearic acid and salt, and the processing agent with the weight percentage composition being 3%-6% includes 3%-5% of low molecular weight polyethylene wax and 1%-2% of stearic acid and salt. The transparent filler masterbatch is close to the inherent quality transparency effect of resin, small in stacking size, low in cost, larger in yield and good in promotional value.

Description

technical field [0001] The invention relates to the technical field of preparation of filler master batches, in particular to a transparent filler master batch and a preparation method thereof. Background technique [0002] The transparent filling masterbatch has the characteristics of low price, can improve the rigidity, hardness and molding stability of the product, and has little influence on the transparency of the plastic, and has a wide application prospect. At present, the common transparent filling masterbatches in the market are mainly barium sulfate masterbatch produced by modified ultra-fine precipitated barium sulfate, talc masterbatch produced by fine talc powder, and sodium sulfate masterbatch produced by sodium sulfate. The advantages of barium sulfate masterbatch are that the product has good whiteness and gloss, bright color, and improves the processing heat deformation of the product. The disadvantage is that the transparency is not ideal, the product is w...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L25/06C08K9/04C08K3/00C08K5/09C08K5/098C08J3/22
CPCC08L23/06C08J3/226C08J2423/06C08K2201/003C08L2201/10C08L2205/025C08K13/06C08K9/04C08K3/01C08K5/09C08K5/098
Inventor 王平
Owner 王萍
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