Additive for stone-like paint protecting adhesive

A technology of protective glue and imitation stone paint, which is applied in the direction of coating, etc., can solve the problems of poor solubility at room temperature, poor thixotropic thickening performance, and difficult stable storage, etc., and achieve good suspension, stable performance, and the effect of preventing substance precipitation

Inactive Publication Date: 2019-06-21
QINGDAO BRIGHT MOON SEAWEED GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an auxiliary agent for imitation stone paint protective glue to solve the defects of difficult stable storage, poor solubility at room temperature, and poor thixotropic thickening performance of the existing protective glue.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of sodium alginate of the present invention comprises:

[0025] (1) Soak and wash the brown algae, digest with sodium carbonate, dilute with water, and separate by air flotation to obtain a sodium alginate solution; the M / G ratio of the brown algae is 2.0-3.0, and the soaking time is 6-10 hours; the digestion reaction temperature is 50 -55℃, the reaction time is 2-3h, and the second of diluting with water is 80-100s.

[0026] (2) adding diatomaceous earth to the sodium alginate solution for adsorption and filtration, and filtering the mixed solution of sodium alginate and diatomaceous earth to obtain a clear glue solution;

[0027] (3) Add calcium chloride solution to the clarified glue to obtain flocculent calcium alginate;

[0028] (4) Washing with hydrochloric acid to remove excess calcium chloride in the flocculent calcium alginate to obtain a semi-finished product of sodium alginate; the mass fraction of hydrochloric acid in the decalcificat...

Embodiment 1

[0032] The auxiliary agent for the imitation stone paint protective glue of this embodiment is weighed from the weight ratio of 75 parts of sodium alginate, 5 parts of sodium carboxymethyl cellulose, and 20 parts of urea, and crushed to 30 meshes; put the above powder into the mixture Stir in the tank at room temperature, and mix for 15 minutes to obtain the additive, which is discharged into an automatic packaging machine to complete the product packaging to obtain the finished product, which is uniform light yellow amorphous particles.

[0033] The preparation method of sodium alginate is as follows: (1) Soak the kelp with an M / G ratio of 2 for 8 hours, wash the vegetables three times after cutting; add sodium carbonate with a mass fraction of 12% for digestion, the digestion reaction temperature is 50°C, and the reaction temperature is 50°C. Time 2h, dilute with water for 80s, air flotation separation to obtain sodium alginate solution; (2) Add diatomite to sodium alginate s...

Embodiment 2

[0035] The auxiliary agent for the imitation stone paint protective glue of this embodiment is made of 80 parts of sodium alginate, 10 parts of sodium carboxymethyl cellulose, and 10 parts of urea. Weigh the raw materials and grind them to 30 meshes; put the above powder into the mixture Stir in the tank at room temperature, and mix for 15 minutes to obtain the additive, which is discharged into an automatic packaging machine to complete the product packaging to obtain the finished product, which is uniform light yellow amorphous particles.

[0036] The solution viscosity of the auxiliary agent mass percent concentration 1% of the imitation stone paint protective glue of the present embodiment is 35mpa.s, pH value is 7.13, Ca 2+ % is 0.15%, and the water content of the solution after standing still at 105°C for 4 hours is 7.20%.

[0037] The preparation method of sodium alginate is as follows: (1) Soak the kelp with an M / G ratio of 3 for 8 hours, wash the vegetables three time...

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Abstract

The invention discloses an additive for stone-like paint protecting adhesive. The additive is prepared by mixing the following components in parts by weight: 70-80 parts of sodium alginate, 5-10 partsof sodium carboxymethyl cellulose and 15-20 parts of urea. The additive for the stone-like paint protecting adhesive has stable performance, does not change after storage at normal temperature for half a year, has good solubility at normal temperature and is convenient to use; the additive comprises sodium alginate, sodium carboxymethyl cellulose and urea, wherein sodium alginate has good thixotropy and thickening properties, and can be crosslinked with metal ions such as calcium to form particles with moderate softness; sodium carboxymethyl cellulose and sodium alginate play a synergistic role in thickening and suspending functions; and urea can prevent sodium alginate and sodium carboxymethyl cellulose from agglomerating during dissolution, and is easy to dissolve at normal temperatureand more convenient to use.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an auxiliary agent for imitation stone paint protective glue. Background technique [0002] Imitation stone paint is a kind of thick exterior wall decorative coating with a decorative effect similar to marble and granite. It is mainly formulated with natural stone powder of various colors. It is mostly used to produce the imitation stone effect of building exterior walls, so it is also called liquid stone. . Stone-like paint is suitable for indoor and outdoor decoration of various buildings, especially for decoration on curved buildings, which can receive vivid and return to nature effects. The buildings decorated with imitation stone paint have natural and real natural color, giving people an elegant, harmonious and solemn aesthetic feeling. [0003] Protective glue is a new generation of functional additives used in the production of colorful paints. It plays a key role in i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/65C09D7/63
Inventor 刘蕴慧张宗亮张强郇路恒周达
Owner QINGDAO BRIGHT MOON SEAWEED GROUP
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