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3-(2,3-Epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement, and waterproof product and application thereof

A trialkoxysilane and glycidoxy technology, used in asphalt material adhesives, asphalt coatings, adhesives, etc., can solve the problem of blind selection of coupling agents, unaware of the chemical bonding of coupling agents, asphalt aging and The weather resistance has not been significantly improved, etc.

Inactive Publication Date: 2016-01-27
卢桂才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the polysiloxane coupling agent, polynaphthalene sulfonic acid sodium salt or In the reaction mechanism of silane coupling agent, titanate coupling agent and aluminate coupling agent, only the chemical crosslinking reaction and physical mortise and tenon synergistic bonding with uncured cement were proposed, but the coupling was not realized. The coupling agent can have a strong chemical bond with the bitumen at the other end, so it is relatively blind and has no sense of direction when choosing a coupling agent. Therefore, when manufacturing waterproof membranes or reactive bonding joint sealants The expected effect is often not achieved, and it is only better than ordinary waterproof membranes or sealants, and the aging and weather resistance of asphalt have not been significantly improved.

Method used

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  • 3-(2,3-Epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement, and waterproof product and application thereof
  • 3-(2,3-Epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement, and waterproof product and application thereof
  • 3-(2,3-Epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement, and waterproof product and application thereof

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Experimental program
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Effect test

Embodiment 1-1

[0035] Embodiment 1-1, 3-(2,3 epoxypropoxy) trialkoxy silane bridging agent waterproof roll material, the first layer of the waterproof roll material is a high-performance film layer, the middle layer is an asphalt adhesive layer, The lower layer is the isolation film protection layer, wherein the composition and parts by weight of the asphalt bonding layer are: 30-35 parts of asphalt, 15-16 parts of modifier, 2-4 parts of second-line oil refined in the petrochemical production process, 3 0.1-0.5 parts by weight of (2,3 glycidoxypropoxy)trialkoxysilane waterproof bridging agent, 3-4 parts of filler magnesium oxide, and 40-45 parts of filler calcium carbonate powder. Production process: first heat the asphalt to 160-200 ℃, after it reaches a molten state, add modifiers, additives and waterproof bridging agents, stir and react for 0.5-2 hours, and finally add appropriate amount of fillers according to the performance of the waterproof membrane , laid on the surface of the plasti...

Embodiment 1-2

[0036] Embodiment 1-2, 3-(2,3 epoxypropoxy) trialkoxysilane bridging agent waterproof roll material, the first layer of the waterproof roll material is a high-performance film layer, the middle layer is an asphalt adhesive layer, The lower layer is the isolation film protection layer, wherein the composition and parts by weight of the asphalt bonding layer are: 38-45 parts of asphalt, 17-18 parts of modifier, 5-7 parts of second-line oil refined in the petrochemical production process, 3 -(2,3 glycidoxypropoxy) trialkoxysilane waterproof bridging agent in parts by weight of 7.0-9.0 parts, filler magnesium oxide in parts of 5-6 parts, filler calcium carbonate powder in parts of 46-53 parts. Production process: first heat the asphalt to 160-200 ℃, after it reaches a molten state, add modifiers, additives and waterproof bridging agents, stir and react for 0.5-2 hours, and finally add appropriate amount of fillers according to the performance of the waterproof membrane , laid on t...

Embodiment 1-3

[0037] Embodiment 1-3, 3-(2,3 glycidyloxy) trialkoxysilane bridging agent waterproof roll material, the first layer of the waterproof roll material is a high-performance film layer, the middle layer is an asphalt adhesive layer, The lower layer is an isolation film protection layer, wherein the composition and parts by weight of the asphalt bonding layer are: 46-50 parts of asphalt, 19-20 parts of modifier, 8-10 parts of second-line oil refined in the petrochemical production process, 3 12.0-15.0 parts by weight of (2,3 glycidoxypropoxy)trialkoxysilane waterproof bridging agent, 7-8 parts of filler magnesium oxide, and 55-60 parts of filler calcium carbonate powder. Production process: first heat the asphalt to 160-200 ℃, after it reaches a molten state, add modifiers, additives and waterproof bridging agents, stir and react for 0.5-2 hours, and finally add appropriate amount of fillers according to the performance of the waterproof membrane , laid on the surface of the plasti...

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Abstract

The invention discloses a 3-(2,3-epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement, and a waterproof product and an application thereof. An epoxy group at one end of the structural formula of the 3-(2,3-epoxypropoxy)trialkoxy silane waterproof bridging agent for asphalt and cement can be connected with a carboxy group or a hydroxyl group in asphalt to form good chemical affinity, the other end of silane and hydrated calcium silicate or calcium aluminate generated in the cement hydration process are combined to form a chemical bond, the bridging agent and concrete undergo a chemical cross-linking reaction to make asphalt and cement be tightly combined, related positions have chemical bonds like an erected bridge and have an irreversible bonding effect after curing, and the waterproof bridging agent can be used to prepare waterproof coils, or waterproof coatings, waterproof pastes or waterproof leak stopping agents, and can infiltrate into cement gel and concrete capillary pores in a peristaltic manner in the cement solidification process in order to realize a tight, firm and irreversible bonding effect.

Description

technical field [0001] The invention relates to an additive for building waterproof materials, especially a bridging agent capable of performing chemical crosslinking reaction with asphalt and cement at the same time to form a chemical bond with better chemical affinity, and to make it play an irreversible bonding role after curing and Its waterproofing products and applications. Background technique [0002] Common building waterproof materials are mainly cement and asphalt. Asphalt is mainly used for plugging the joints of concrete or the gaps around the wall, or spread on the roof to bond thin bricks to prevent leakage, and can also be made into waterproof membranes. Seepage-proof and rain-proof occasions. Yet current asphalt is difficult to carry out better plugging and leak prevention, and its reason is that the bonding of asphalt and solidified cement (concrete) is very not lasting, mainly is that asphalt is the residue after oil extraction gasoline, kerosene etc., M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/5435C08L95/00C09D7/12C09D195/00C09J11/06C09J195/00C09K3/10
Inventor 卢桂才朱方伍伍盛江郭文雄陈立斌来光业
Owner 卢桂才