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A kind of plastic filler masterbatch and preparation method thereof

A technology for filling master batches and plastics, which is applied in the field of plastic filling master batches and their preparation, can solve the problems of difficulty in powder cleaning and conversion, high manufacturing cost, large energy waste, etc., and achieves less energy consumption, short operation process, and dust less effect

Active Publication Date: 2018-02-16
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional method is to add powder to the plastic through the side feeding method of the extruder, but there are problems in this method: a large amount of powder floats during the plastic processing process and it is difficult to clean the machine and change production
But this method also has great defects, the main defect comes from the manufacture of filler masterbatch
In the prior art, preheating, melting, plasticizing, kneading, cooling and other processes are required to manufacture filler masterbatches, resulting in a large waste of energy and high manufacturing costs; and the mixture must be in a melt state before it can be granulated, which limits the amount of fillers. The content is below 80%, which is not as high as the traditional way of adding powder; at the same time, this kind of masterbatch is only suitable for adding to filling products compatible with the masterbatch carrier resin, and the versatility is very poor

Method used

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  • A kind of plastic filler masterbatch and preparation method thereof
  • A kind of plastic filler masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 90 parts of 3000 mesh calcium carbonate, 1 part of zinc stearate, 1 part of amino silane coupling agent, put them into the mixer and mix for 1-5 min, the rotation speed is 1000 rpm, control the surface temperature of the mixture to 40-50 ℃; Change, add 7.8 parts of liquid bisphenol A epoxy resin, continue to mix for 10-20min, control the temperature at 50-60℃; put 0.2 part of maleic anhydride into the mixture and continue to stir for 5-15min, the temperature rises to 70- At 80°C, the masterbatch particles are basically formed, and the resulting masterbatch has a diameter of 0.1-1.0mm and is spherical. At this time, the material can be discharged and cooled to obtain the finished masterbatch.

Embodiment 2

[0032] Take 85 parts of 1250 mesh talc powder, 1 part of zinc stearate, 1 part of epoxy silane coupling agent, put them into the mixer and mix for 1-5 min, the speed is 1000rpm, and the surface temperature of the mixture is controlled to 40-50℃; Keep it unchanged, add 12.8 parts of liquid bisphenol A epoxy resin, continue to mix for 10-20min, control the temperature at 50-60℃; put 0.2 part of phthalic anhydride into the mixture and continue to stir for 5-15min, the temperature When the temperature rises to 70-80℃, the masterbatch particles are basically formed, and the resulting masterbatch has a diameter of 0.1-0.3mm, which is spherical. At this time, the material can be discharged and cooled to obtain the finished masterbatch.

Embodiment 3

[0034] Take 88 parts of 3000 mesh barium sulfate, 1 part of zinc stearate, 1 part of titanate coupling agent, put them into the mixer and mix for 1-5min, the speed is 1000rpm, control the surface temperature of the mixture to 40-50℃; keep the speed No change, add 9.8 parts of liquid bisphenol A epoxy resin, continue to mix for 10-20 minutes, and control the temperature at 50-60℃; put 0.2 parts of methylhexahydrophthalic anhydride into the mixture and continue to stir for 5-15 minutes, and the temperature rises When it reaches 70-80℃, the masterbatch particles are basically formed, and the resulting masterbatch has a diameter of 0.1-0.5mm, which is spherical. At this time, the material can be discharged and cooled to obtain the finished masterbatch.

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Abstract

The invention discloses a plastic filling masterbatch, which comprises the following components and parts by weight: 85-90 parts of filler, 0.5-1 part of lubricant, 0.5-1 part of coupling agent, 6-13 parts of adhesive and curing 0.1-0.5 parts of agent; adhesive is liquid bisphenol A type epoxy resin, curing agent is maleic anhydride, phthalic anhydride, methyl tetrahydrophthalic anhydride or methyl hexahydrophthalic anhydride; the invention also discloses The preparation method of the plastic filling masterbatch. Compared with the prior art, the plastic filling masterbatch of the present invention has the characteristics of high purity, easy flow, high dispersion, no flying and environmental protection. The method for preparing the masterbatch has the advantages of short process, less energy consumption and less dust in the production process.

Description

Technical field [0001] The invention relates to the field of masterbatch manufacturing, in particular to a plastic filling masterbatch and a preparation method thereof. Background technique [0002] Filling modified plastics with mineral powder is one of the most important ways to modify plastics at present. It can not only achieve functional modification, but also greatly reduce material costs and improve market competitiveness. Commonly used fillers include talc, calcium carbonate, barium sulfate, and mica powder. They have different shapes and particle sizes, but the common technical difficulty of their modified plastics is: how to add them to the matrix resin smoothly and distribute them evenly At the same time, it can minimize the dust in the working environment. [0003] The traditional method is to add powder to the plastic through the side feeding method of the extruder. However, this method has the following problems: a large amount of powder floats during the plastic pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08G59/42C08K9/06C08K9/04C08K3/34C08K3/26C08K3/30C08J3/22
Inventor 周杰叶晓光钱永红杜赏
Owner SHANGHAI KINGFA SCI & TECH
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