Stone back rib adhesive and preparation method thereof
A technology for back ribs and stone materials, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve problems such as unfavorable construction, stone disease, and impact on construction
Active Publication Date: 2021-03-19
WUHAN KEDA MARBLE PROTECTIVE MATERIALS
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Problems solved by technology
The cement curing time is long, which affects the construction, and at least one week of water curing time is required, so that the stone is prone to pathological changes in a humid environment, such as water spots, white blooms, wet marks, etc., which will affect the appearance; moreover, the cement should not be corroded by acid. The substance and the calcium hydroxide in the cement will undergo a neutralization reaction, and the volume of the product will be loose and swell, and it will be easily hydrolyzed and pulverized when it meets water, causing the steel bar to fall off
However, marble glue has the problems of large shrinkage rate and brittle performance after curing, and marble glue is usually a viscous paste, which is not easy to level in stone grooves, which is not conducive to construction
Method used
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Embodiment 1
[0036] This embodiment provides a kind of stone back reinforcement, including A component and B component, in parts by weight, the composition of A component is as follows: 100 parts of unsaturated polyester resin, 10 parts of anti-shrinkage toughening agent, active carbonic acid 50 parts of calcium, 50 parts of active barium sulfate, 15 parts of silicon powder, 2 parts of polydimethylsiloxane and 3 parts of polyester modified dimethylsiloxane; the composition of component B is as follows: Benzyl peroxide 30 parts of dibutyl peroxybenzoate, 10 parts of tert-butyl peroxybenzoate, 20 parts of dibutyl phthalate, 20 parts of calcium stearate and 10 parts of zinc stearate;
[0037] Wherein, the preparation method of the anti-shrinkage toughening agent is as follows: (1) Methyl vinyl silicone rubber raw rubber and natural rubber raw rubber are mixed in a double-roller open mill for 2-3 hours at a weight ratio of 1:1, Mix the raw rubber fully and evenly, and control the temperature o...
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The invention provides a stone back rib adhesive and a preparation method thereof. The stone back rib adhesive comprises a component A and a component B, the component A comprises unsaturated polyester resin and an anti-shrinkage flexibilizer, and the component B comprises a peroxide initiator; and the anti-shrinkage flexibilizer comprises paste formed by mixing raw methyl vinyl silicone rubber and raw natural rubber and dissolving an obtained mixture in petroleum ether, and the anti-shrinkage flexibilizer accounts for 515% of the unsaturated polyester resin in percentage by mass. The stone back rib adhesive provided by the embodiment of the invention takes the unsaturated polyester resin as a matrix, can fully give excellent water resistance and acid resistance to the adhesive, and can greatly improve the toughness of the stone back rib adhesive by adding the paste formed by mixing the methyl vinyl silicone rubber raw rubber and the natural rubber raw rubber and dissolving the mixturein petroleum ether; and meanwhile, the anti-shrinkage performance is improved, an anti-shrinkage agent does not need to be additionally added, toughening and anti-shrinkage integration is achieved, and the stone back rib adhesive with excellent comprehensive mechanical properties is obtained.
Description
technical field [0001] The invention relates to the technical field of building materials, in particular to a stone backing glue and a preparation method thereof. Background technique [0002] In the field of building materials, stone back reinforcement means that after the stone is cut into slabs, in order to avoid damage or breakage during transportation, operation, etc., grooves are added to the back of the stone to add steel bars, so that the stone has better firmness. The stone back reinforcement glue is used to fix the steel bars. As a kind of reinforcement glue, it plays a vital role in ensuring the quality of the stone. [0003] At present, white cement or marble glue is mainly used for reinforcement of stone back reinforcement, but they all have some disadvantages. The cement curing time is long, which affects the construction, and at least one week of water curing time is required, so that the stone is prone to pathological changes in a humid environment, such as ...
Claims
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Login to View More IPC IPC(8): C09J167/06C09J11/08
CPCC09J167/06C09J11/08C08L2205/035C08L83/04C08L7/00
Inventor 杜昆文杜昆武邱国峰王莉亚熊善高毛攀峰季亦同
Owner WUHAN KEDA MARBLE PROTECTIVE MATERIALS