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Preparation method of special calcium oxide for plastic moisture-proof master batch

A calcium oxide and calcium hydroxide technology, applied in the direction of calcium/strontium/barium oxide/hydroxide, etc., can solve the problems of mechanical properties and water absorption, agglomeration of calcium oxide powder, unstable material properties, etc. Enhanced bonding force, enhanced reinforcement effect, good economic and social benefits

Active Publication Date: 2021-12-03
NANNING XIAYANG CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing calcium oxide is directly used as a plastic filler, the calcium oxide powder is prone to agglomeration, poor dispersion, poor compatibility with the plastic substrate, poor bonding force, and easy to cause interface defects , resulting in unstable material properties, decreased mechanical properties and water absorption properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Method for preparing a special calcium oxide moisture-proof parental particle, including the following steps:

[0026] S1: Pulling the square algorite to 4 mm, sieve, calcined at a temperature of 1000 ° C, according to the water as average ratio of 5: 1, and the calcium stone mass is 6% starch, 2.2% polyacrylamide, 3.5% Ethylene glycol and 1.2% fatty alcohol polyoxyethylene ether sulfate, indigestion reaction at a temperature of 85 ° C, agonize, and produce a calcium hydroxide emulsion;

[0027] S2: Add the calcium hydroxide emulsion to the ultrasonic stirrer, then add mass ratio of 4: 3: 2, lauryl polyether sodium sulfate, coconut carboxymethyl sodium magine, and rare earth dipolygenesis composition. The compound modifier is 45 min at a power of 300 W, and the addition amount of the modifier is 2.7% of the calcium hydroxide dry base, and modified calcium hydroxide suspension;

[0028] S3: Dehydrating the modified calcium hydroxide suspension through the filter machine, usi...

Embodiment 2

[0030] Method for preparing a special calcium oxide moisture-proof parental particle, including the following steps:

[0031] S1: Pull the square algorite to 1.0 mm, sieve, calcine at a temperature of 950 ° C, according to the water as average ratio of 5.5% starch, 1.8% polyacrylamide, 2% Polyethylene glycol and 1.5% fatty alcohol polyoxyethylene ether sulfate, indigestion reaction, agonize, and produce a calcium hydroxide emulsion at a temperature of 90 ° C;

[0032] S2: Add the calcium hydroxide emulsion to the ultrasonic stirrer, and then add mass ratio of 5: 2: 1, lauryl polyether sodium sodium sulfate, coconut carboxymethyl sodium methyl acetate and rare earth diploma The compound modifier is 40 min at a power of 250 W, and the addition amount of the modifier is 3.2% of the calcium hydroxide dry base, and modified calcium hydroxide suspension;

[0033] S3: Dehydrating the modified calcium hydroxide suspension through the filter machine, using a pulsed airflow dryer in the fee...

Embodiment 3

[0035] Method for preparing a special calcium oxide moisture-proof parental particle, including the following steps:

[0036] S1: Puls the square to 1.0 mm, sieve, calcine 3 h at a temperature of 1000 ° C, according to the water ash ratio of 5: 1, and adding the square solution mass of 7% starch, 2% polyacrylamide, 3.5% Polyethylene glycol and 0.8% fatty alcohol polyoxyethylene ether sulfate, indigestion reaction, agonize, and produce a calcium hydroxide emulsion at a temperature of 85 ° C;

[0037] S2: Add the calcium hydroxide emulsion to the ultrasonic stirrer, and then add mass ratio of 4: 3: 3 sodium sodium sodium sulfate, coconut carboxymethyl sodium deoxazoline acetate and rare earth diploma. The compound modifier is 40 min at a power of 250 W, and the addition amount of the modifier is 2.8% of the calcium hydroxide dry base, and modified calcium hydroxide suspension;

[0038] S3: Dehydrating the modified calcium hydroxide suspension is dehydrated by a filter machine, using...

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PUM

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Abstract

The invention discloses a preparation method of special calcium oxide for plastic moisture-proof master batch, the preparation method comprises the following steps: crushing calcite, sieving, calcining, adding starch, polyacrylamide, polyethylene glycol and fatty alcohol-polyoxyethylene ether sodium sulfate according to a water-cement ratio of (4-6): 1, and carrying out digestion reaction and aging; adding the calcium hydroxide emulsion into an ultrasonic stirrer, then adding a compound modifier composed of sodium laureth sulfate, coco-sodium carboxymethyl imidazoline acetate and a rare earth coupling agent, and carrying out ultrasonic dispersion to obtain a modified calcium hydroxide suspension; dehydrating and drying through a filter press, and then placing in a muffle furnace for high-temperature roasting, cooling, crushing and sieving to obtain calcium oxide powder. The calcium oxide powder prepared by the method has the advantages of large specific surface area, good stability, good dispersibility, good reinforcing effect, good water absorption, excellent moisture resistance and the like, has good compatibility with plastic master batches, has good interface bonding force, and can be used as a reinforcing moisture-proof filler of plastics.

Description

Technical field [0001] The present invention relates to the technical field of inorganic non-metallic mineral preparation, and is specifically a method for preparing a special calcium oxide moisture-proof parental particle. Background technique [0002] Calcium oxide is white or gray block or granules, commonly known as raw lime or lime, is a common inorganic compound, and calcium oxide is usually obtained from limestone or shell. Currently widely used in fillers, refractory materials, building materials, metallurgy flux, cement speed condensers, phosphor flux, desiccant, and the like. Usually, the preparation of calcium oxide is a natural rock, which is the main component of calcium carbonate, calcined at high temperatures, decomposes to form carbon dioxide and calcium oxide. However, calcination of calcium oxide obtained by calcining the rock, the specific surface area is relatively small, and the calcium oxide has a wet-sensitive, easy to absorb carbon dioxide and moisture in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/04C04B2/10C04B2/06C04B2/04C08K9/10C08K3/22C08L27/06
CPCC01F11/04C04B2/10C04B2/06C04B2/045C08K9/10C08K3/22C08K2003/2206C01P2006/12C08L27/06Y02W90/10
Inventor 韦明
Owner NANNING XIAYANG CHEM TECH CO LTD