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Stone adhesive and preparation method thereof

A technology for adhesives and stone materials, applied in the direction of adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve the problem of inability to cover dark traces, yellow edges at the joint, and poor bond strength Large and other problems, to achieve the effect of easy operation, no yellowing, and high bonding strength

Inactive Publication Date: 2019-08-27
浙江久而久化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stone glue in the prior art often has the following disadvantages: 1. The dark traces at the cracks cannot be covered when the cracks are repaired, and the aesthetics after repairing the light-colored stones is poor; 2. After the adhesive is placed for a long time, the bonding 3. The bonding strength is not large, and it is often necessary to rely on the bottom plate to increase the strength during the stone repair process.

Method used

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  • Stone adhesive and preparation method thereof
  • Stone adhesive and preparation method thereof
  • Stone adhesive and preparation method thereof

Examples

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preparation example Construction

[0043] The preparation methods of each sample in Example 1 to Example 18 are as follows:

[0044] (1) Weigh α-ethyl cyanoacrylate, pyrogallic acid ester compounds (pyro gallic acid propyl ester or pyro gallic acid ethyl ester) and titanium dioxide according to the ratio of preparation;

[0045] (2) Weigh 10% from the weighed ethyl α-cyanoacrylate into a three-necked flask, then put the titanium dioxide into it, and stir to fully dissolve it in the ethyl α-cyanoacrylate;

[0046] (3) Add the remaining 90% ethyl cyanoacrylate and pyrogallic acid ester compound (pyro gallic acid propyl ester or pyro gallic acid ethyl ester), and stir at the reaction temperature of 40~60℃ for 24h , Get the required stone adhesive sample.

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Abstract

The invention discloses a stone adhesive. The stone adhesive is characterized in that alpha-ethyl cyanoacrylate is taken as a main body, and components also comprise a pyrogallic acid ester compound and titanium dioxide, wherein the mass of pyrogallic acid esters accounts for 500-800 ppm of the mass of the alpha-ethyl cyanoacrylate; the mass of the titanium dioxide accounts for 500-1000 ppm of themass of the alpha-ethyl cyanoacrylate. Compared with the prior art, the stone adhesive has the advantages that 1, the stone adhesive can permeate into marble gaps due to small viscosity and good permeability; 2, the dried stone adhesive is large in bonding strength and good in stability; 3, the stone adhesive does not yellow either after being placed for a long time; 4, a preparation technology is simple and easy to operate.

Description

Technical field [0001] The invention relates to the technical field of α-ethyl cyanoacrylate adhesives, in particular to a stone adhesive and a preparation method thereof. Background technique [0002] In 1947, A·E·Ardis first synthesized α-cyanoacrylate and obtained a patent. In the 1950s, Eastman Kodak researchers accidentally discovered the adhesive properties of α-cyanoacrylate and officially launched the world's first α-adhesive. Subsequently, Japan, West Germany and other countries have also been put into production. my country began to research and produce in the 1960s. The α-adhesive has developed rapidly once it came out. It has fast curing speed, convenient use, strong adhesion, and wide range of bonding materials. For bonding steel, non-ferrous metals, rubber, leather, plastics, ceramics, glass, wood, stone, etc., it is widely used in electrical, instrumentation, machinery, electronics, optical instruments, medical, light industry and civil industries. [0003] Stone gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/04C09J11/06C09J11/04
CPCC09J4/00C09J11/04C09J11/06
Inventor 宋宏骞汪荣利杨晔
Owner 浙江久而久化学有限公司
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