Composite waterproof sealant as well as preparation method and application thereof
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A waterproof sealing and composite technology, applied in the direction of adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problems of long curing time and low efficiency, and achieve strong impermeability, good bonding strength, The effect of high elongation at break
Active Publication Date: 2021-03-23
ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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Problems solved by technology
However, the existing methyl methacrylate (MMA) resin waterproof sealant materials still have the disadvantages of long curing time and low efficiency, and there is still room for improvement in mechanical properties
Method used
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Embodiment 1
[0042] The composite waterproof sealant of this embodiment is composed of three components A, B, and C, and the mass ratio of A component, B component, and C component is 100:2:1.5; wherein, A component includes the following The composition of parts by mass: 22 parts of unsaturated polyester resin, 4 parts of methyl methacrylate, 33 parts of butyl methacrylate, 5 parts of flexible monomer, 10 parts of nano calcium carbonate, 14 parts of 1250 mesh silicon powder, gas phase two 8 parts of silicon oxide, 3.7 parts of organic bentonite, and 0.3 parts of thixotropic agent; component B includes the following ingredients by mass: 96.6 parts of accelerator, 3.4 parts of pigment; component C includes the following ingredients by mass: 100 parts of initiator.
[0043] The preparation method of the compound type waterproof sealing paste of the present embodiment comprises the following steps:
[0049] The composite waterproof sealant of this embodiment is composed of three components A, B, and C, and the mass ratio of A component, B component, and C component is 100:2:1.5; wherein, A component includes the following The composition of parts by mass: 20 parts of unsaturated polyester resin, 2 parts of methyl methacrylate, 37 parts of butyl methacrylate, 5 parts of flexible monomer, 10 parts of nano calcium carbonate, 14 parts of 1250 mesh silicon powder, gas phase two 8 parts of silicon oxide, 3.8 parts of organic bentonite, 0.2 parts of thixotropic agent, and 100 parts of initiator; component B includes the following components by mass: 96 parts of accelerator, 4 parts of pigment; component C comprises the following components by mass: 100 parts of initiator.
[0050] The preparation method of the compound type waterproof sealing paste of the present embodiment comprises the following steps:
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Abstract
The invention discloses a composite waterproof sealant as well as a preparation method and application thereof. The composite waterproof sealant comprises a component A, a component B and a componentC, and the mass ratio of the component A to the component B to the component C is (100: 2: 1.2)-(100: 2: 1.8); the component A comprises unsaturated polyester resin, methyl methacrylate, butyl methacrylate, a flexible monomer, an inorganic filler and a thixotropic agent; the component B comprises a pigment and an accelerant; and the component C comprises an initiator. The preparation method of thewaterproof sealant comprises the following steps of respectively preparing the components A, B and C, and grinding and uniformly dispersing the mixture, and uniformly mixing the component A, the component B and the component C according to a mass ratio to prepare the composite waterproof sealant. The composite waterproof sealant has excellent waterproof performance, is superior to existing sealants in the aspects of bonding strength of dry and wet base surfaces, elongation at break after blade coating and bonding strength retention rate at high temperature, and can be used for highway foundation engineering or bridge caulking engineering.
Description
technical field [0001] The invention belongs to the field of waterproof sealing paste, in particular to a compound waterproof sealing paste and its preparation method and application. Background technique [0002] Acrylic resin was widely used in aircraft windshields before the Second World War. After the war, it was used as an unbreakable plexiglass and widely used in advertisements (signboards), automobiles (headlight covers, etc.), electrical equipment (displays, etc.) and various other fields (large tanks in aquariums, etc.), especially in the construction of roads and bridges. [0003] Highway municipal concrete bridges leak due to the aging of the expansion joints, and the expansion joints need to be repaired, sealed and waterproofed. Traditional asphalt sealing materials cannot meet the needs of on-site maintenance due to their general physical and mechanical properties and durability. The maintenance time is long and the efficiency is low. Low, poor durability. [...
Claims
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