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Dispersable thermoplastic mineral powder particle and preparing method thereof

A mineral powder, thermoplastic technology, applied in chemical instruments and methods, special adhesive granulation, fibrous fillers, etc., can solve problems affecting product appearance and quality, prone to delamination, difficult to disperse media, etc., to reduce powder The effect of flying body, improving quality and simple operation

Active Publication Date: 2004-09-15
GUANGZHOU ECHOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, talcum powder has many shortcomings in industrial application: talcum powder is too fine (greater than 1000 mesh), and it is easy to cause dust to fly in production and construction, thereby causing various inconveniences; Some industrial products, such as cosmetics, paints, plastics, etc., are difficult to disperse into the medium, and these products are prone to delamination after a period of time, which affects the appearance and quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) raw material: 1kg molecular weight is the polyethylene glycol of 2000, water, the 1250 purpose talcum powder of 99kg;

[0019] (2) Preparation of talcum powder particles:

[0020] Dissolve 1kg of polyethylene glycol with a molecular weight of 2000 in water to form a 10% solution; put 99kg of 1250-mesh talcum powder into a high-speed mixer, slowly add the above-mentioned polyethylene glycol solution, and mix at high speed for 5 minutes; The twin-screw extruder processes the above talcum powder mixture into primary granules, and then dries the primary granules at 150°C to constant weight, and after cooling, they become thermoplastic talc powder granules.

Embodiment 2

[0022] (1) raw material: 5kg molecular weight is the polyethylene wax of 1000, water, the 5000 purpose magnesium hydroxide of 95kg;

[0023] (2) Preparation of magnesium hydroxide particles:

[0024] Dissolve 5kg of polyethylene wax with a molecular weight of 1000 in water to form a 10% solution; put 95kg of 5000-mesh magnesium hydroxide into a high-speed mixer, slowly add the above-mentioned polyethylene wax solution, and mix at high speed for 10 minutes; The extruder processes the above magnesium hydroxide mixture into primary granules, and then dries the primary granules at 130°C to constant weight, and after cooling, they become thermoplastic magnesium hydroxide granules.

Embodiment 3

[0026] (1) Raw materials: 0.2kg of polydececyl glutarate, water, 300 mesh dolomite of 99.8kg;

[0027] (2) The preparation method of dolomite particle:

[0028] 0.2kg of polydececyl glutarate is dissolved in water, and is configured into a 10% solution; 300 mesh dolomite of 99.8kg is put into a high-speed stirring mixer, and the above-mentioned polydececyl glutarate solution is slowly added, Mix at high speed for 10 minutes; process the above-mentioned dolomite mixture into primary granules with a double-roller extrusion granulator, then dry the primary granules at 120°C to constant weight, and obtain thermoplastic dolomite particles after cooling.

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PUM

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Abstract

The invention discloses a kind of mineral powder granules which are dispersive and have thermal plasticity. The mineral powder granules are made up of 95%-99.8% weight percentage mineral powder and 0.2%-5% weight percentage thermal plasticity binder. The mineral powder granules are easy to be dispersed, it can reduces the fluffy powder in use, decreases the harm to the environment and workers, at the same time, upgrades the quality of the products, it applies to plastic, rubber, paint field. The invention also discloses the manufacturing method of above mineral powder granules.

Description

technical field [0001] The invention relates to a mineral powder particle, in particular to an easily dispersible thermoplastic mineral powder particle. The invention also relates to a method for preparing the mineral powder particles. Background technique [0002] Mineral powder, such as talc powder, is a unique natural mineral with a strong phosphorous structure and a variety of excellent physical and chemical properties, such as flexibility, whiteness, hydrophobicity, atmospheric stability, acid resistance, alkali resistance, chemical Inert, high-temperature melting, conductive and absorbent, the price of talc powder is also relatively cheap. It is precisely because talc powder has a variety of excellent physical and chemical properties and relatively low price that it is used in many industries, such as ceramics, papermaking, coatings, cosmetics, plastics, furniture, radio electronics and fireproof materials. But at the same time, talcum powder has many shortcomings in...

Claims

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Application Information

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IPC IPC(8): B01J2/28C08K9/08C09C3/00
Inventor 陈广强罗忠富张振广
Owner GUANGZHOU ECHOM SCI & TECH CO LTD
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