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High-performance masterbatch with high loading calcium carbonate and preparation method for masterbatch

A calcium carbonate, high-performance technology, applied in the industrial chemical field, can solve the problems of high mechanical properties and high dispersion of fillers, and achieve the effect of reducing costs

Active Publication Date: 2015-11-25
赵晓华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that it is generally used in plastic products that do not require high performance, but for plastic products that require high mechanical properties and high dispersion of fillers, and achieve a high addition ratio to control costs, now Some calcium carbonate filler masterbatches still cannot meet the above requirements well

Method used

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  • High-performance masterbatch with high loading calcium carbonate and preparation method for masterbatch
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  • High-performance masterbatch with high loading calcium carbonate and preparation method for masterbatch

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Effect test

Embodiment 1

[0024] The present embodiment provides a high-performance high-filling calcium carbonate masterbatch, which is prepared from the following components by weight:

[0025]

[0026] The coupling agent is composed of 0.25 parts by weight of glyceryl caprylate polyoxyethylene ether and 0.25 parts of rare earth stearate.

[0027] Preparation process: weigh calcium carbonate, fully dry in a desiccator to remove water, make the water content less than 0.1%, and crush through 800-2500 mesh sieve. Weigh calcium carbonate and additives into a high-speed mixer, stir for 8 minutes at a speed of 300-400r / min, and a temperature of 120°C; weigh stearic acid rare earth coupling agent and put it into the mixture, stir for 8 minutes at a speed of The temperature is 300-400r / min, and the temperature is 120°C; Weigh the thermoplastic elastomer, resin and the mixture obtained from the above steps and put it into the internal mixer, and banbury for 15 minutes at the temperature of 160°C; then pla...

Embodiment 2

[0029] The present embodiment provides a high-performance high-filling calcium carbonate masterbatch, which is prepared from the following components by weight:

[0030]

[0031] The coupling agent is composed of 0.25 parts by weight of glyceryl caprylate polyoxyethylene ether and 0.25 parts of rare earth stearate.

[0032] Preparation process: weigh calcium carbonate, fully dry in a desiccator to remove water, make the water content less than 0.1%, and crush through 800-2500 mesh sieve. Weigh calcium carbonate and additives into a high-speed mixer, stir for 12 minutes at a speed of 300-400r / min, and a temperature of 100°C; weigh stearic acid rare earth coupling agent and put it into the mixture, stir for 12 minutes at a speed of The temperature is 300-400r / min, and the temperature is 100°C; Weigh the thermoplastic elastomer, resin and the mixture obtained from the above steps, put it into the internal mixer, and banbury for 30 minutes at the temperature of 180°C; then put ...

Embodiment 3

[0034] The present embodiment provides a high-performance high-filling calcium carbonate masterbatch, which is prepared from the following components by weight:

[0035]

[0036] The coupling agent is composed of 0.25 parts by weight of glyceryl caprylate polyoxyethylene ether and 0.25 parts of rare earth stearate.

[0037] Preparation process: weigh calcium carbonate, fully dry in a desiccator to remove water, make the water content less than 0.1%, and crush through 800-2500 mesh sieve. Weigh calcium carbonate and additives into a high-speed mixer, stir for 10 minutes at a speed of 300-400r / min, and a temperature of 110°C; weigh stearic acid rare earth coupling agent and put it into the mixture, stir for 10 minutes at a speed of The temperature is 300-400r / min, and the temperature is 110°C; weigh the thermoplastic elastomer, resin and the mixture obtained from the above steps, put it into the internal mixer, and banbury for 20 minutes at a temperature of 170°C; then put th...

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Abstract

The invention discloses a high-performance masterbatch with high loading calcium carbonate and a preparation method for the masterbatch. The preparation raw materials of the masterbatch comprise the following components in parts by weight: 80 to 95 parts of calcium carbonate, 0.5 to 5 parts of stearic acid modifier, 0.5 to 5 parts of thermoplastic elastomer and 5 to 20 parts of resin; the preparation method for the masterbatch comprises the following steps: A, weighing the calcium carbonate and assistants and putting in a high-speed mixer, and stirring for 8 to 12 minutes; B, weighing the stearic acid modifier and putting in a mixture obtained in the step A, and stirring for 8 to 12 minutes; C, weighing the thermoplastic elastomer, the resin and a mixture obtained in the step B and putting in an internal mixer, and performing for banburying for 15 to 30 minutes; D, putting a mixture obtained in the step C in a screw extruder, and performing extrusion pelletization to obtain the finished product of the masterbatch. The masterbatch with high loading calcium carbonate disclosed by the invention has a higher filling proportion, and is capable of effectively reducing the cost of plastic products; the plastic products are obviously enhanced in shock strength and flexural modulus.

Description

technical field [0001] The invention relates to the field of industrial chemicals, in particular to a calcium carbonate filler masterbatch and a preparation method thereof. Background technique [0002] The role of the plastic filler masterbatch is to add more cheap fillers conveniently and more while ensuring good processing performance and product performance, so as to achieve the purpose of reducing costs and improving product performance. In 2014, my country's plastic production and consumption reached 90 million tons, with an annual growth rate of 8%. According to the plastic production industry's need to fill 10% of various inorganic non-metallic materials, the filling calcium carbonate accounted for 65%. Based on this calculation In 2014, the amount of calcium carbonate used reached 6 million tons. The large-scale use of calcium carbonate can greatly save the amount of resin used, which has great economic value. [0003] The polyethylene plastic filler masterbatch in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K9/10C08K3/26
Inventor 赵晓华
Owner 赵晓华
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