Microcapsule sustained-release alkali-resistant anti-cracking ceramic tile glue structure
Patent Information
- Application Number
- CN202521861838.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-30
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-30
AI Technical Summary
瓷砖胶在使用的时候，基层水泥水化会产生大量氢氧化钙（碱性物质），当环境中有水分（如施工浇水、墙体渗水）时，氢氧化钙会溶解在水中，顺着基层与瓷砖胶的缝隙、瓷砖胶内部的微孔向上迁移；当水分蒸发后，氢氧化钙就会在瓷砖表面或瓷砖胶层析出，形成白色碱渍（即“返碱”）；部分瓷砖胶为了提升粘结力，会增加水泥用量或减少保水添加剂，反而可能导致胶层内部微孔更多，让碱溶液更容易渗透迁移，间接加剧返碱
1.本方案通过抗碱缓释胶囊、抗裂缓释胶囊采用明胶材质，可快速吸水溶胀，使胶囊壳从硬壳变为软韧状态、机械强度大幅下降，在使用工具对瓷砖胶本体进行按压找平时，仅需施加轻微按压，溶胀后的胶囊壳便会直接破裂，让内部抗碱组分和抗裂组分快速分散并溶解于胶液中，确保在施工关键环节能及时发挥抗碱、抗裂作用，有效提升瓷砖胶的性能，保障瓷砖铺贴质量；
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Figure CN224754378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building materials, specifically a microcapsule-type slow-release alkali-resistant and crack-resistant ceramic tile adhesive structure. Background Technology
[0002] Tile adhesive (also known as tile bonding agent) is a dry powder or paste-like bonding material specifically used to bond ceramic tiles, stone, and other decorative materials to wall and floor substrates (such as cement plaster layers and concrete substrates). Essentially, it is an "optimized special mortar" that replaces the traditional "cement + sand" mixing method. Its core function is to solve the problems of "firmness, stability, and ease of construction" in tile adhesion. The performance of tile adhesive is determined by its composition. Mainstream formulas contain three core components: Cementitious materials: primarily Portland cement (ordinary silicate cement), responsible for the hydration reaction upon contact with water, forming a hard bonding structure, and is the core source of "adhesive strength"; Aggregates: usually quartz sand (fine particles and uniform gradation), which enhances the strength of the bonding layer, reduces shrinkage, and prevents cracking caused by excessive shrinkage of pure cement; Functional additives: such as cellulose ethers (water retention, preventing cement from drying and hardening too quickly), latex powder (improving flexibility and adhesion), water-reducing agents (improving workability), etc., optimizing workability and later bonding stability. When tile adhesive is used, the hydration of the base cement produces a large amount of calcium hydroxide (an alkaline substance). When there is moisture in the environment (such as watering during construction or water seepage in the wall), the calcium hydroxide dissolves in the water and migrates upwards along the gaps between the base and the tile adhesive, as well as the micropores inside the tile adhesive. When the moisture evaporates, the calcium hydroxide precipitates on the surface of the tile or the tile adhesive layer, forming white alkaline stains (i.e., "efflorescence"). Some tile adhesives increase the amount of cement or reduce the amount of water-retaining additives to improve adhesion, which may actually lead to more micropores inside the adhesive layer, making it easier for the alkaline solution to penetrate and migrate, indirectly aggravating efflorescence. Utility Model Content
[0003] The purpose of this invention is to provide a microcapsule-type slow-release alkali-resistant and crack-resistant tile adhesive structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, a microcapsule-type sustained-release alkali-resistant and crack-resistant tile adhesive structure is provided, comprising a tile adhesive body, the outer side of which includes a protective sleeve, and the interior of the tile adhesive body contains a mixture of alkali-resistant sustained-release capsules and crack-resistant sustained-release capsules. Multiple sets of alkali-resistant and crack-resistant sustained-release capsules are evenly arranged and are uniformly distributed within the interior of the tile adhesive body.
[0005] Furthermore, both ends of the alkali-resistant sustained-release capsule and the crack-resistant sustained-release capsule are spherical, and the sizes of the alkali-resistant sustained-release capsule and the crack-resistant sustained-release capsule are the same. At the same time, both the alkali-resistant sustained-release capsule and the crack-resistant sustained-release capsule are made of gelatin.
[0006] Furthermore, the interior of the anti-alkali sustained-release capsule is filled with an anti-alkali component, which includes a silane waterproofing agent and zinc oxide. The interior of the crack-resistant sustained-release capsule is filled with a crack-resistant component, which includes high-elasticity latex powder, polypropylene short fibers, and ettringite expanding agent.
[0007] Furthermore, the protective sleeve includes an inner non-stick film, a middle puncture-resistant film, and an outer anti-slip film, and the inner non-stick film, the middle puncture-resistant film, and the outer anti-slip film are distributed in layers from the inside out.
[0008] Furthermore, the inner non-stick film is a polytetrafluoroethylene film with a thickness of 0.15–0.2 mm, the middle anti-puncture film is a linear low-density polyethylene film with a thickness of 0.1–0.15 mm, and the outer anti-slip film is a UV soft-touch film with a thickness of 0.08–0.12 mm.
[0009] Furthermore, the surface of the outer anti-slip film is provided with anti-slip texture, and the anti-slip texture is granular.
[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This solution utilizes gelatin-based anti-alkali and anti-crack slow-release capsules, which can quickly absorb water and swell, transforming the capsule shell from a hard shell into a soft and flexible state with a significant decrease in mechanical strength. When pressing and leveling the tile adhesive with tools, only slight pressure is needed for the swollen capsule shell to rupture directly, allowing the internal anti-alkali and anti-crack components to quickly disperse and dissolve in the adhesive. This ensures that the anti-alkali and anti-crack effects can be effectively exerted during critical construction stages, thereby improving the performance of the tile adhesive and guaranteeing the quality of tile laying. 2. This solution allows the alkali-resistant and crack-resistant components to be stably filled inside the alkali-resistant and crack-resistant slow-release capsules when the tile adhesive is not under pressure during construction. This prevents them from mixing with the adhesive in advance, which could lead to performance failure or reduced effectiveness. This achieves precise slow release of the functional components, ensuring stability during storage and early construction, and enabling them to function efficiently when needed, further improving the reliability and effectiveness of the tile adhesive. Attached Figure Description
[0011] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A bottom view; Figure 3 for Figure 1 A partial structural diagram; Figure 4 for Figure 3 A magnified structural diagram at point A in the diagram.
[0012] The following are labeled in the diagram: 1. Protective cover; 11. Inner non-stick film; 12. Middle anti-puncture film; 13. Outer anti-slip film; 131. Anti-slip texture; 2. Tile adhesive body; 3. Anti-alkali slow-release capsule; 4. Anti-crack slow-release capsule. Detailed Implementation
[0013] Please see Figure 1-4 This utility model provides a microcapsule-type slow-release alkali-resistant and crack-resistant tile adhesive structure, including a tile adhesive body 2, a protective sleeve 1 on the outside of the tile adhesive body 2, and alkali-resistant slow-release capsules 3 and crack-resistant slow-release capsules 4 mixed inside the tile adhesive body 2. At the same time, multiple sets of alkali-resistant slow-release capsules 3 and crack-resistant slow-release capsules 4 are evenly arranged, and the alkali-resistant slow-release capsules 3 and crack-resistant slow-release capsules 4 are evenly distributed inside the tile adhesive body 2.
[0014] As a preferred embodiment, both ends of the anti-alkali sustained-release capsule 3 and the anti-crack sustained-release capsule 4 are spherical, and the anti-alkali sustained-release capsule 3 and the anti-crack sustained-release capsule 4 are the same size. At the same time, both the anti-alkali sustained-release capsule 3 and the anti-crack sustained-release capsule 4 are made of gelatin.
[0015] The interior of the anti-alkali sustained-release capsule 3 is filled with an anti-alkali component, which includes silane waterproofing agent and zinc oxide. The interior of the anti-crack sustained-release capsule 4 is filled with an anti-crack component, which includes high-elasticity latex powder, polypropylene short fibers and ettringite expansion agent.
[0016] The alkali-resistant components include silane waterproofing agent and zinc oxide. Zinc oxide reacts with calcium hydroxide in cement to produce zinc hydroxide and zinc calcium silicate. Both of these substances are stable crystals that are insoluble in water. They can fix alkali ions in the base layer and prevent them from forming a migratory alkaline solution. At the same time, the generated crystals can fill the pores of the adhesive layer, further improving impermeability and achieving the alkali resistance of the tile adhesive body 2. The crack-resistant component contains ettringite expansion agent, which reacts with cement hydration products to generate crystals with slight volume expansion, such as ettringite. The expansion amount, about 0.02% to 0.05%, can offset the hydration shrinkage of cement by about 0.05% to 0.1%, making the volume of the adhesive layer tend to be stable, reducing shrinkage stress, and achieving the crack resistance performance of the tile adhesive body 2.
[0017] like Figure 1-2As shown: Because the tile adhesive body 2 is uniformly mixed with multiple sets of anti-alkali slow-release capsules 3 and anti-cracking slow-release capsules 4, and these capsules are made of gelatin, which is a water-soluble protein, it can quickly absorb water and swell when it comes into contact with water-containing adhesives, such as water-soluble adhesives or gel-like adhesives. This causes the capsule shell to change from a hard shell to a soft and tough state, significantly reducing its mechanical strength. When pressing and leveling the tile adhesive body 2 with tools, only slight pressure is needed for the swollen capsule shell to rupture directly, allowing the internal anti-alkali and anti-cracking components to disperse rapidly. Dissolved in the adhesive, it ensures timely application of anti-alkali and anti-cracking properties during critical construction stages, effectively improving the performance of tile adhesive and guaranteeing the quality of tile laying. Simultaneously, in the non-pressed state (i.e., when the tile adhesive is not pressed), the anti-alkali and anti-cracking components stably fill the interior of the anti-alkali slow-release capsules 3 and 4, preventing premature mixing with the adhesive that could lead to performance failure or weakened effects. This achieves precise slow-release of functional components, ensuring stability during storage and the early stages of construction, while also providing efficient performance when needed, further enhancing the reliability and effectiveness of tile adhesive use.
[0018] In a preferred embodiment, the protective sleeve 1 includes an inner non-stick film 11, a middle puncture-resistant film 12, and an outer anti-slip film 13, and the inner non-stick film 11, the middle puncture-resistant film 12, and the outer anti-slip film 13 are distributed in layers from the inside out.
[0019] The inner non-stick film 11 is a polytetrafluoroethylene film with a thickness of 0.15-0.2 mm; the middle anti-puncture film 12 is a linear low-density polyethylene film with a thickness of 0.1-0.15 mm; and the outer anti-slip film 13 is a UV soft-touch film with a thickness of 0.08-0.12 mm.
[0020] The surface of the outer anti-slip film 13 is provided with anti-slip texture 131, and the anti-slip texture 131 is granular.
[0021] like Figure 4 As shown: Polytetrafluoroethylene film: extremely low surface energy, approximately 18 mN / m, far lower than the surface tension of tile adhesive. It is completely non-stick, whether in dry powder or wet tile adhesive, and resistant to strong acids and alkalis. It can withstand the high concentration of OH- produced by cement hydration in the tile adhesive. - It is resistant to organic solvents, does not react with additives in tile adhesive, and is resistant to high temperatures. Even when the tile adhesive is cured at high temperatures, it will not soften or stick, making it easy to quickly separate the protective sleeve 1 from the tile adhesive. Linear low-density polyethylene film has a "linear structure" of molecular chains and contains short branches, resulting in strong intermolecular forces and making it less prone to breakage when stretched. Compared with ordinary low-density polyethylene, its puncture resistance is increased by 30% to 50%. When punctured by a sharp object, the film will buffer the impact force through "molecular chain stretching deformation", making it less likely to break instantly and preventing tile adhesive leakage. The UV soft-touch film includes an optical base film that carries decorative patterns on the surface of an object. The optical base film has a PU coating layer, and the surface of the PU coating layer has a talc-like anti-slip texture 131. The granular texture effectively achieves a soft-touch effect on the surface of the film, while also improving the smooth feel. This makes it less likely for people to sweat when touching the film. Even if people do sweat, the granular structure and smooth feel of the surface can reduce the adhesion between the hand and the film, making it less likely to fall off and preventing the protective sleeve 1 from falling off when held.
[0022] Working principle: When using, open the protective sleeve 1 on the outside of the tile adhesive body 2, and apply the tile adhesive body 2 to the target area. The interior of the tile adhesive body 2 contains multiple sets of anti-alkali slow-release capsules 3 and anti-cracking slow-release capsules 4. When the tile adhesive body 2 is pressed and leveled with a tool, the anti-alkali slow-release capsules 3 and 4, which are made of gelatin (a water-soluble protein), will quickly absorb water and swell upon contact with water-containing adhesives, such as the adhesive inside the tile adhesive, for example, water-based adhesives or gel-like adhesives. The capsule shell changes from a hard shell to a soft and flexible state, significantly reducing its mechanical strength. At this point, applying slight pressure will allow the swollen capsules to swell. The capsule shell will rupture directly, and the internal alkali-resistant and crack-resistant components can quickly disperse and dissolve in the adhesive. When the tile adhesive is not pressed, the alkali-resistant and crack-resistant components are stably filled inside the capsule. When pressed, they can diffuse inside the tile adhesive, enhancing the alkali-resistant and crack-resistant properties of the tile adhesive body 2. This effectively resists the erosion of the tile adhesive body 2 by alkaline substances in the environment after tile laying, such as alkali precipitated from the cement base. It avoids problems such as structural loosening and strength reduction caused by alkali corrosion of the tile adhesive body 2, thereby preventing the weakening of the adhesion between the tile and the base layer, reducing the risk of tile hollowing and falling off, and ensuring the long-term stability of the tile laying project.
Claims
1. A microcapsule-type sustained-release alkali-resistant and crack-resistant tile adhesive structure, comprising a tile adhesive body (2), characterized in that: The outer side of the tile adhesive body (2) includes a protective sleeve (1), and the interior of the tile adhesive body (2) contains anti-alkali slow-release capsules (3) and anti-cracking slow-release capsules (4). At the same time, multiple sets of anti-alkali slow-release capsules (3) and anti-cracking slow-release capsules (4) are evenly arranged, and the anti-alkali slow-release capsules (3) and anti-cracking slow-release capsules (4) are evenly distributed inside the tile adhesive body (2).
2. The microcapsule-encapsulated sustained-release alkali-resistant and crack-resistant tile adhesive structure according to claim 1, characterized in that: Both ends of the anti-alkali sustained-release capsule (3) and the anti-crack sustained-release capsule (4) are spherical, and the anti-alkali sustained-release capsule (3) and the anti-crack sustained-release capsule (4) are the same size. Both the anti-alkali sustained-release capsule (3) and the anti-crack sustained-release capsule (4) are made of gelatin.
3. The microcapsule-encapsulated sustained-release alkali-resistant and crack-resistant tile adhesive structure according to claim 1, characterized in that: The protective sleeve (1) includes an inner non-stick film (11), a middle anti-puncture film (12) and an outer anti-slip film (13), and the inner non-stick film (11), the middle anti-puncture film (12) and the outer anti-slip film (13) are distributed in layers from the inside to the outside.
4. The microcapsule-encapsulated sustained-release alkali-resistant and crack-resistant tile adhesive structure according to claim 3, characterized in that: The inner non-stick film (11) is a polytetrafluoroethylene film with a thickness of 0.15-0.2 mm. The middle anti-puncture film (12) is a linear low-density polyethylene film with a thickness of 0.1-0.15 mm. The outer anti-slip film (13) is a UV soft-touch film with a thickness of 0.08-0.12 mm.
5. The microcapsule-encapsulated sustained-release alkali-resistant and crack-resistant tile adhesive structure according to claim 4, characterized in that: The surface of the outer anti-slip film (13) is provided with anti-slip texture (131), and the anti-slip texture (131) is granular.