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Water adsorbing agent for plastic formation and production thereof

A technology of plastic molding and water absorbing agent, applied in the field of water absorbing agent, can solve problems such as affecting product quality

Inactive Publication Date: 2005-07-27
陈明忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the product quality is affected by damp raw materials in the existing plastic molding processing, and provides a water-absorbing agent for plastic molding processing with good water absorption, convenient use, and simple process and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Start the ACM-60 airflow vortex micronizer, put in 1000kg CaO, and refine it to 1600 mesh. Start the high-mixing switch of the 500 / 1000 high-temperature mixing unit, take 100kg of refined CaO and put it into the 500 / 1000 high-temperature mixing unit, add 8kg of naphthenic oil, and mix until the temperature of the machine rises to 80 ° C ~ 85 ° C, adding 1.5 kg aluminate coupling agent, stir at high temperature to 100°C, add 1.5kg barium stearate stabilizer, stir at high speed for 4-6 minutes, put it into a cold mixer and add 2kg polyethylene wax, 30kg HDPE and stir evenly And cooled to 60 ℃ ~ 65 ℃ and then out of the pot. Pour the above-mentioned mixture into a KS-75 twin-screw extruder with large length-to-diameter ratio and double exhaust for plastication, extrusion and granulation. The plasticizing process temperature is: 1 group 180 ℃, 2 groups 180 ℃, 3 groups 180 ℃, 4 groups 185 ℃, 5 groups 185 ℃, 6 groups 185 ℃, 7 groups 190 ℃, 8 groups 190 ℃, 9 groups 195 ℃ 10 ...

Embodiment 2

[0021] Start the ACM-60 airflow vortex micronizer, put in 1000kg MgO, and refine it to 2000 mesh. Start the high-mixing switch of the 500 / 1000 high-temperature mixing unit, take 130kg of MgO and put it into the 500 / 1000 high-temperature mixing unit, add 10kg of white oil, mix until the temperature of the machine rises to 75°C-80°C, and add 1.5kg of titanic acid Grease coupling agent, stir at high temperature to 90°C, add 2kg of calcium stearate stabilizer, stir at high speed for 4-6 minutes, put it into the cold mixer and add 3kg of polyethylene wax, 33kg of recycled low-density polyethylene Stir evenly and cool to 60°C~65°C before taking out of the pan. Pour the above-mentioned mixture into a KS-75 twin-screw extruder with large length-to-diameter ratio and double exhaust for plastication, extrusion and granulation. The plasticizing process temperature is: 1 group 115°C, 2 groups 120°C, 3 groups 125°C, 4 groups 125°C, 5 groups 125°C, 6 groups 125°C, 7 groups 130°C, 8 groups ...

Embodiment 3

[0023] Start the ACM-60 airflow vortex micronizer, put in 1000kg BaO, and refine it to 1250 mesh. Start the high-mixing switch of the 500 / 1000 high-temperature mixing unit, take 100kg BaO and put it into the 500 / 1000 high-temperature mixing unit, add 6kg of liquid paraffin, mix until the temperature of the machine rises to 85°C-90°C, and add 1.2kg of silane As a coupling agent, heat up to 100°C with high stirring, add 1.5kg of sodium stearate stabilizer, stir at high speed for 4 to 6 minutes, then put it into a cold mixer and add 2kg of polyethylene wax, 2kg of HIPS, 25kg of LLDPE and stir evenly. Cool to 60°C ~ 65°C and take out of the pan. Pour the above-mentioned mixture into a KS-75 twin-screw extruder with large length-to-diameter ratio and double exhaust for plastication, extrusion and granulation. The plasticizing process temperature is: 1 group 140°C, 2 groups 140°C, 3 groups 140°C, 4 groups 145°C, 5 groups 145°C, 6 groups 145°C, 7 groups 150°C, 8 groups 150°C, 9 grou...

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PUM

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Abstract

A water adsorbent for plastic forming machining and its production are disclosed. The water adsorbent consists of super-fine inorganic oxide 100 proportions, disperser 1-4 proportions, grafting modifier 0.5-3 proportions, carrier resin 20-50 proportions, lubricating plasticizer, and stabilizer 0.5-4 proportions. The production is carried out by mixed reacting, plastifying pressing and forming. Its advantages include good water absorbability product quality, simple process, and different formulas for different carriers.

Description

Technical field: [0001] The invention relates to a water-absorbing agent specially used for absorbing water in the molding process of plastic pipes, plastic injection molding products and recycled plastic materials and a preparation method thereof. Background technique: [0002] Some damp raw materials are often encountered in plastic molding processing, which affects production, and some raw materials will absorb moisture in the air. To make the molding process difficult and cause the performance of these finished products to be unqualified. These raw materials are typically recycled recycled materials, PS, ABS, etc. These materials are most commonly used in plastic pipes, injection molded products, and packaging film bags produced from recycled recycled materials. Invention content: [0003] The invention solves the problem that the product quality is affected by damp raw materials in the existing plastic molding processing, and provides a water-absorbing agent for pla...

Claims

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Application Information

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IPC IPC(8): C08K3/20C08K9/04C08L23/06C08L23/12C08L25/06C08L33/20C08L77/00
Inventor 陈明忠
Owner 陈明忠
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