Spray-type release agent for production of artificial stone and preparation method and use method of spray-type release agent

A technology of artificial stone and mold release agent, applied in the manufacture of tools, ceramic molding machines, etc., can solve the problems of large adhesion, long film forming time, etc., to enhance flow performance, solve excessive paper skin, and solve mold release unstable effect

Active Publication Date: 2019-07-30
GUANGXI LISHENG STONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a spray-coating release agent for artificial stone production, a preparation method and a method of use thereof, so as to solve the problems of long film-forming time and large adhesion amount of the existing release agent for artificial stone production. question

Method used

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  • Spray-type release agent for production of artificial stone and preparation method and use method of spray-type release agent
  • Spray-type release agent for production of artificial stone and preparation method and use method of spray-type release agent
  • Spray-type release agent for production of artificial stone and preparation method and use method of spray-type release agent

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preparation example Construction

[0045] The preparation method of the modified camellia oil comprises the following steps: adding 18 parts by weight of an acetic acid solution with a volume concentration of 26% and 2 parts by weight of polystyrenesulfonic acid to the camellia oil of 63 parts by weight Resin catalyst, after heating up to 52°C, add 40 parts by weight of hydrogen peroxide with a volume concentration of 32%. After adding hydrogen peroxide dropwise, keep the temperature at 52°C for 5.5 hours, and then use carbonic acid Washing with sodium hydrogen solution, then washing with saturated sodium chloride solution until the pH value is 7, then evaporating to remove water, then adding 65 parts by weight of sodium hydroxide ethanol solution to the mixture, and controlling the temperature to react at 62°C for 45min , to obtain modified camellia oil;

[0046] The 1-dodecyl-3-methylimidazole nitrate is 1-dodecyl-3-methylimidazole sodium nitrate;

[0047] The preparation method of the spraying type release ...

Embodiment 1

[0054] A spray-on mold release agent for artificial stone production, in parts by weight, comprising the following raw materials: 48 parts of polyvinyl alcohol, 23 parts of paraffin, 65 parts of hydrotalcite powder, 72 parts of magnesium silicate, 20 parts of aluminum magnesium silicate 8 parts of zinc oxide, 12 parts of magnesium hydroxide, 5 parts of polytetrafluoroethylene, 6 parts of cellulose, 2 parts of xanthan gum, 1.4 parts of sodium tripolyphosphate, 1.8 parts of sodium carbonate, 12 parts of modified camellia oil, 176 parts of 1-dodecyl-3-methylimidazole nitrate, 4 parts of dipotassium octadecylsuccinic acid monoamide sulfonate;

[0055] The hydrotalcite powder is a magnesium aluminum carbonate hydrotalcite powder with a particle size of less than 1.7 μm;

[0056] The particle size of the magnesium silicate is less than 1.2 μm;

[0057] The particle size of the magnesium aluminum silicate is less than 12.3 μm;

[0058] The particle size of the zinc oxide is less th...

Embodiment 2

[0070] A spray-on mold release agent for artificial stone production, which comprises the following raw materials in parts by weight: 40 parts of polyvinyl alcohol, 25 parts of paraffin, 55 parts of hydrotalcite powder, 66 parts of magnesium silicate, and 16 parts of magnesium aluminum silicate 5 parts of zinc oxide, 8 parts of magnesium hydroxide, 2 parts of polytetrafluoroethylene, 3 parts of cellulose, 1 part of xanthan gum, 1 part of sodium tripolyphosphate, 1 part of sodium carbonate, 7 parts of modified camellia oil, 132 parts of 1-dodecyl-3-methylimidazole nitrate, 2 parts of dipotassium octadecylsuccinic acid monoamide sulfonate;

[0071] The hydrotalcite powder is a magnesium aluminum carbonate hydrotalcite powder with a particle size of less than 3.5 μm;

[0072] The particle size of the magnesium silicate is less than 2.4 μm;

[0073] The particle size of the magnesium aluminum silicate is less than 18.7 μm;

[0074] The particle size of the zinc oxide is less tha...

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Abstract

The invention discloses a spray-type release agent for production of artificial stone and a preparation method and a use method of the spray-type release agent. The spray-type release agent comprisesthe following raw materials: polyvinyl alcohol, paraffin, hydrotalcite powder, magnesium silicate, magnesium aluminum silicate, zinc oxide, magnesium hydroxide, polytetrafluoroethylene, cellulose, xanthan gum, sodium tripolyphosphate, sodium carbonate, modified camellia oil, 1-dodecyl-3-methylimidazolium nitrate and dipotassium N-octadecyl sulfosuccinamate. The release agent is prepared by the steps of dissolving polyvinyl alcohol, mixing with an additive and the like. The use method comprises the following steps: spraying the release agent onto the surface of an artificial-stone production mold; performing natural drying and curing; and forming an anti-sticking coating on the surface of the mold. Polyvinyl alcohol, paraffin, modified camellia oil, 1-dodecyl-3-methylimidazolium nitrate anddipotassium N-octadecyl sulfosuccinamate are taken as a reinforcing system to take a synergistic effect. Thus, the drying filming time is shortened synergistically, the production cycle is shortenedand the efficiency is improved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of release agent preparation, and in particular relates to a spray-on release agent for producing artificial stone, a preparation method and a use method thereof. [0003] 【Background technique】 [0004] Artificial stone is made by mixing calcium carbonate, aluminum oxide, silicon oxide and other aggregates with adhesives, filling them into molds made of steel, wood and other materials, and curing them after vacuum extrusion or vacuum pressure vibration molding. kind of building material. Generally, kraft paper, kraft cardboard, etc. are placed on the surface of the mold to isolate the contact between the artificial stone material and the surface of the mold to achieve the purpose of demoulding. There is also an oil-based release agent coated on the surface of the mold to prevent the artificial stone material from sticking to the surface of the mold. Use kraft paper and kraft cardboard as a release...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/38
CPCB28B7/384B28B7/388
Inventor 罗阳林钟土有刘松筠汤雄跃邱习良
Owner GUANGXI LISHENG STONE CO LTD
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