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Preparation method of carrier-free precipitated barium sulfate transparent master batch

A technology for precipitating barium sulfate and transparent masterbatch, which is applied in the field of preparation of carrier-free precipitated barium sulfate transparent masterbatch, which can solve the problems of excessive smoke generation, cumbersome, high organic content, etc., and achieve the effect of solving compatibility problems and reducing costs

Inactive Publication Date: 2016-03-30
HUBEI HENGXU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the past methods and patents for preparing precipitated barium sulfate masterbatches, a large amount of organic carriers (15-20%) were required, so that the cost of barium sulfate filled masterbatches was increased, because in the process of manufacturing masterbatches, generally The use of high temperature, high organic content, and more smoke will have a certain impact on the environment; on the other hand, due to the variety of resin materials used by downstream plastic product customers, barium sulfate masterbatch manufacturers also need to change the base material when making masterbatches. Solving compatibility is very cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: a kind of preparation method of carrier-free precipitated barium sulfate transparent masterbatch is characterized in that adopting the following steps: adding the precipitated barium sulfate powder to a high-speed mixer whose rotating speed is 1000r / min and heating to 110°C, Add polyethylene wax, EBS, stearic acid, coupling agent in sequence, and finally add white oil, mix evenly, and make granular masterbatch through granulation in a twin-screw extruder at a temperature of 90°C; The mass percentage is: precipitated barium sulfate powder 85%, polyethylene wax 4.5%, EBS 2.5%, stearic acid 1%, coupling agent 2%, white oil 5%; precipitated barium sulfate powder has a purity of 99%, fine The degree is 2000 mesh; polyethylene wax is synthetic wax, its molecular weight is 2500g / mol; coupling agent is aluminate coupling agent; EBS is ethylene bis stearamide; white oil is liquid paraffin.

Embodiment 2

[0017] Embodiment 2: a kind of preparation method of carrier-free precipitated barium sulfate transparent masterbatch, it is characterized in that adopting the following steps: adding the precipitated barium sulfate powder to the high-speed mixer whose rotating speed is 1000r / min and heating to 110°C, Add polyethylene wax, EBS, stearic acid, coupling agent in sequence, and finally add white oil, mix evenly, and make granular masterbatch through granulation in a twin-screw extruder at a temperature of 120°C; The mass percentage is: precipitated barium sulfate powder 90%, polyethylene wax 2%, EBS 2.5%, stearic acid 1.5%, coupling agent 1%, white oil 3%; precipitated barium sulfate powder has a purity of 99.2%, fine The degree is 2200 mesh; polyethylene wax is a mixture of synthetic wax and pyrolysis wax, and its molecular weight is 4000g / mol; the coupling agent is aluminate coupling agent; EBS is ethylene bis stearamide; white oil is liquid paraffin.

Embodiment 3

[0018] Embodiment 3: a kind of preparation method of carrier-free precipitated barium sulfate transparent masterbatch, it is characterized in that adopting the following steps: join the precipitated barium sulfate powder into the high-speed mixing machine that rotating speed is 1000r / min and heat to 110 ℃, Add polyethylene wax, EBS, stearic acid, coupling agent in sequence, and finally add white oil, mix evenly, and make granular masterbatch through granulation in a twin-screw extruder at a temperature of 105°C; The mass percentage is: precipitated barium sulfate powder 88%, polyethylene wax 3%, EBS 2.5%, stearic acid 1.5%, coupling agent 1%, white oil 4%; precipitated barium sulfate powder has a purity of 99.1%, fine The degree is 2100 mesh; polyethylene wax is pyrolysis wax, its molecular weight is 3000g / mol; coupling agent is aluminate coupling agent; EBS is ethylene bis stearamide; white oil is liquid paraffin.

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Abstract

The invention relates to a preparation method of a carrier-free precipitated barium sulfate transparent master batch. The method is characterized by comprising the following steps: adding precipitated barium sulfate powder into a high-speed mixer with the rotation speed of 1000 r / min, carrying out high-speed mixing, heating to 110 DEG C, sequentially adding polyethylene wax, EBS (ethylene bis stearamide), stearic acid and a coupling agent, finally adding white oil, uniformly mixing, and granulating in a double screw extruder with the temperature of 90-120 DEG C to obtain the granular master batch. The carrier-free precipitated barium sulfate transparent master batch is prepared from the following substances in percentage by mass: 85-90% of precipitated barium sulfate powder, 2-4.5% of polyethylene wax, 2-2.5% of EBS, 1-1.5% of stearic acid, 1-2% of coupling agent and 3-5% of white oil. The preparation method of the carrier-free precipitated barium sulfate transparent master batch can solve the problem in compatibility of the plastic product after the filling master batch is used, and can greatly lower the raw material cost.

Description

technical field [0001] The invention relates to a preparation method of carrier-free precipitated barium sulfate transparent masterbatch. Background technique [0002] Compared with other inorganic powders, precipitated barium sulfate powder is widely used in plastic fillers due to its stable properties, insoluble in acid and alkali, non-toxicity and good transparency. However, in the past methods and patents for preparing precipitated barium sulfate masterbatches, a large amount of organic carriers (15-20%) were required, so that the cost of barium sulfate filled masterbatches was increased, because in the process of manufacturing masterbatches, generally The use of high temperature, high organic content, and more smoke will have a certain impact on the environment; on the other hand, due to the variety of resin materials used by downstream plastic product customers, barium sulfate masterbatch manufacturers also need to change the base material when making masterbatches. S...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L23/06C08L91/00C08K13/02C08K3/30C08K5/20C08K5/09C08K5/10
CPCC08L91/00C08L23/06C08L101/00C08L2205/03
Inventor 莫汉林陈文
Owner HUBEI HENGXU NEW MATERIAL TECH
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