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Ultra-fine calcium carbonate modified and filled master batch preparation method and product thereof

A technology of ultrafine calcium carbonate and filling masterbatch, which is applied in the field of preparation of ultrafine calcium carbonate modified filling masterbatch, can solve the problems of small filling amount of inorganic powder, small cost reduction, large dust, etc., and achieves improvement. The effect of poor dispersibility, increase in filling amount, and cost reduction

Inactive Publication Date: 2016-04-06
ZHANGJIAJIE HENGLIANG MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are three problems: (1) direct use of inorganic calcium carbonate, the dust in the production process is large, resulting in a bad working environment; (2) the filling amount of inorganic powder is small, the reduction in cost is too small, and the expected effect cannot be achieved; ( 3) The plastic surface is not smooth due to direct filling, and various performance indicators are unstable, resulting in frequent product quality problems

Method used

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  • Ultra-fine calcium carbonate modified and filled master batch preparation method and product thereof
  • Ultra-fine calcium carbonate modified and filled master batch preparation method and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of superfine calcium carbonate modified filler masterbatch, which adopts the following raw materials in parts by weight and is prepared according to the following steps:

[0017] (1) Add 100kg of superfine inorganic calcium carbonate powder into the sealed high-speed mixer, stir and dehumidify;

[0018] (2) Then add 0.8 kg of stearic acid and 1.2 kg of titanate coupling agent to organically modify the ultrafine inorganic calcium carbonate;

[0019] (3) Then add 9kg of carrier resin polypropylene (PP for short) and 4kg of lubricant white oil required for granulation, stir and mix evenly;

[0020] (4) Adding extrusion granulator to granulate to prepare polypropylene filler masterbatch.

[0021] The polypropylene filler masterbatch prepared by the method of the present invention is applied to the same plastic product according to different addition amounts, and the performance of the corresponding product is measured as follows:

[0022]

Embodiment 2

[0024] A preparation method of superfine calcium carbonate modified filler masterbatch, which adopts the following raw materials in parts by weight and is prepared according to the following steps:

[0025] (1) Add 100kg of superfine inorganic calcium carbonate powder into the sealed high-speed mixer, stir and dehumidify;

[0026] (2) Then add 1.6kg of stearic acid and 2.4kg of titanate coupling agent to organically modify the ultrafine inorganic calcium carbonate;

[0027] (3) Then add 15kg of carrier resin polypropylene (PP for short) and 3kg of lubricant paraffin wax required for granulation, stir and mix evenly;

[0028] (4) Join the extrusion granulator to granulate to prepare the modified filler masterbatch.

[0029] The polypropylene filler masterbatch prepared by the method of the present invention is applied to the same plastic product according to different addition amounts, and the performance of the corresponding product is measured as follows:

[0030]

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Abstract

The invention relates to an ultra-fine calcium carbonate modified and filled master batch preparation method, which uses the following raw materials (by weight), and comprises: (1) adding 100 parts of ultra-fine inorganic calcium carbonate powder into a high speed mixer, and carrying out stirring dehumidification; (2) adding 2-4 parts of a modifier to carry out organic modification on the ultra-fine inorganic calcium carbonate; (3) adding 9-15 parts of a granulation carrier and 3-4 parts of a lubricant, and uniformly mixing and stirring; and (4) adding to an extrusion granulator, and granulating to obtain the modified and filled master batch. According to the present invention, with the modification treatment on the ultra-fine heavy calcium carbonate, the inorganic calcium carbonate surface is changed into the organic calcium carbonate surface, the calcium carbonate agglomeration is prevented, the poor dispersion of the calcium carbonate powder during the filling process is significantly improved, the filling amount of the calcium carbonate powder in the plastic product is improved, and the plastic product cost is reduced; and the polypropylene filling master batch produced by using the method can be widely used in plastic woven products, extruded plastic tubes and pressure plastic products, and the addition amount of the directly-used inorganic calcium powder does not exceed 5% while the addition amount of the ultra-fine calcium carbonate modified and filled master batch produced by using the method is 10-40%.

Description

technical field [0001] The invention relates to a preparation method of an ultrafine calcium carbonate modified filler masterbatch. The plastic filler masterbatch produced after modification is used to save plastic raw materials, reduce the production cost of plastic products, and provide new energy-saving and environment-friendly materials. Background technique [0002] In today's society, people's main daily necessities are mostly plastic products, and plastic raw materials are mainly extracted and processed from petroleum. With the continuous development of the economy, the price of crude oil continues to rise, causing the price of plastic raw materials to rise from 3,000-4,000 yuan / ton to 13,000-14,000 yuan / ton, and the cost of plastic products increases. In order to adapt to the economic situation, reduce the production of plastic products It is an inevitable trend to use calcium carbonate to fill plastic products to reduce the production cost of enterprises. [0003] ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K9/04C08K3/26C08J3/22
Inventor 王仁成
Owner ZHANGJIAJIE HENGLIANG MINING