Strong-viscidity glue dripping suction cup

Abstract

The invention relates to a strong-viscosity glue-dripping suction cup which comprises a main cup body, a strong adhesive layer and a fixing block, the strong adhesive layer is prepared from, by mass, 10%-40% of synthetic rubber, 10%-40% of oil, 35%-65% of tackifying resin and 0.001%-2% of antioxidant, and the synthetic rubber is formed by mixing first synthetic rubber and second synthetic rubber. Wherein the first synthetic rubber is a styrene-isoprene-styrene block copolymer, the second synthetic rubber is a styrene-butadiene-styrene block copolymer, and the tackifying resin is formed by mixing a first tackifying resin and a second tackifying resin. The composite material of the modified acrylic resin and the tackifier is used as the main component of the strong adhesive layer, and the material forms the high-toughness adhesive layer with the tensile strength greater than or equal to 8MPa and the peel strength greater than or equal to 15N / cm after being cured, so that the adhesive property between the suction cup and the contact surface is remarkably enhanced, and the service life of the suction cup is prolonged. And the problem of unstable fixation caused by suction force reduction after long-term use of an existing glue dripping suction cup is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of suction cup technology, and more specifically to a highly adhesive drip suction cup. Background Technology

[0002] Epoxy suction cups, as a common fixing device, play an important role in various applications such as bathroom shelves and car mounts. However, after prolonged use, epoxy suction cups may experience a gradual weakening of their fixing effect. Especially under long-term loads or environmental changes, the suction strength of the cup is prone to decline, affecting its stability and reliability, and potentially causing the fixed object to fall. This performance degradation not only affects the user experience but can also cause more serious problems in scenarios with high safety requirements. Therefore, ensuring the continued high efficiency and safety of epoxy suction cups during use is particularly important. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a highly adhesive drip suction cup, the specific technical solution of which is as follows:

[0004] A strong adhesive suction cup includes a main plate body, a strong adhesive layer, and a fixing block. The strong adhesive layer is adhered to the front of the main plate body, and the fixing block is injection molded to the rear of the main plate body. The strong adhesive layer is made of the following materials in weight percentage: 10%-40% synthetic rubber, 10%-40% oil, 35%-65% tackifying resin, and 0.001%-2% antioxidant.

[0005] In a preferred embodiment of the present invention, the synthetic rubber is composed of a first synthetic rubber and a second synthetic rubber, wherein the first synthetic rubber is a styrene-isoprene-styrene block copolymer, accounting for 5%-35% by mass; the second synthetic rubber is a styrene-butadiene-styrene block copolymer, accounting for 9%-40% by mass; and the oil is a naphthenic oil.

[0006] In a preferred embodiment of the present invention, the tackifying resin is composed of a first tackifying resin and a second tackifying resin, wherein the first tackifying resin is rosin resin, accounting for 5%-30% by mass; the second tackifying resin is dicyclopentadiene petroleum resin, accounting for 30%-70% by mass; and the antioxidant is composed of a first antioxidant and a second antioxidant, wherein the first antioxidant is pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), accounting for 0.001%-2% by mass; and the second antioxidant is tris(2,4-di-tert-butylphenyl) phosphite, accounting for 0.001%-2% by mass.

[0007] As a preferred embodiment of the present invention, the first synthetic rubber has a mass percentage of 8%-30%, the second synthetic rubber has a mass percentage of 20%-40%, the first tackifying resin has a mass percentage of 8%-25%, the second tackifying resin has a mass percentage of 25%-500%, the first antioxidant has a mass percentage of 0.5%-1.5%, and the second antioxidant has a mass percentage of 0.5%-1.5%.

[0008] As a preferred embodiment of the present invention, the main body is injection molded from TPU or PVC material.

[0009] As a preferred embodiment of the present invention, the front surface of the main disk is pre-coated with a coupling agent, wherein the coupling agent is a silane coupling agent KH-550 or KH-560, and the coating thickness is 10-50μm.

[0010] As a preferred embodiment of the present invention, the strong adhesive layer is prepared by the following steps: ① First, synthetic rubber, oil, tackifying resin and antioxidant are mixed, preheated to a set temperature and kept at that temperature for a certain time to form a liquid adhesive; ② The adhesive is applied to the front surface of the main plate and naturally cooled and cured to form a strong adhesive layer.

[0011] In a preferred embodiment of the present invention, a mounting seat is formed on the rear surface of the main plate, and the fixing block includes a flange and a column formed at the bottom of the flange; the flange is enclosed in the mounting seat.

[0012] As a preferred embodiment of the present invention, the fixing block is made of plastic and has several insertion holes. The mounting base has several insertion rods integrally provided inside, and the insertion rods are inserted into the insertion holes.

[0013] Compared with the shortcomings of existing technologies, the beneficial effects of this patent are as follows: This invention provides a novel adhesive suction cup, which uses a composite material of modified acrylic resin and tackifier as the main component of the strong adhesive layer. After curing, this material forms a high-toughness adhesive layer with a tensile strength ≥8MPa and a peel strength ≥15N / cm, which significantly enhances the adhesion performance between the suction cup and the contact surface. This effectively solves the problems of reduced suction power and unstable fixation, as well as the risk of falling, that exist in existing adhesive suction cups after long-term use. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is an exploded view of the present invention. Detailed Implementation

[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0017] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] To address the problems and defects of existing epoxy suction cups, such as the gradual weakening of their fixing effect and reduced suction power after long-term use, this invention provides a strong-adhesion epoxy suction cup. This is achieved by using a strong-adhesion layer on the front surface of the main cup and a fixing block injection-molded on the rear surface. The strong-adhesion layer is composed of a specific ratio of synthetic rubber, oil, tackifying resin, and antioxidant, which significantly enhances the adhesion between the suction cup and the contact surface. This effectively solves the problem of reduced suction power and the risk of falling off that occurs with existing epoxy suction cups after long-term use. By optimizing the material formulation and manufacturing process, the tensile strength (≥8MPa) and peel strength (≥15N / cm) of the suction cup are improved. Furthermore, preheating treatment improves material flowability, enhances wettability with the soft epoxy cup, reduces interfacial bubble formation, and further improves the overall stability and durability of the suction cup, thus solving the performance degradation problem caused by long-term use and environmental changes.

[0020] like Figure 1 and 2 As shown, a strong adhesive suction cup includes a main plate body 1, a strong adhesive layer 2, and a fixing block 3. The main plate body 1 is injection molded from TPU or PVC material. The strong adhesive layer 2 is adhered to the front of the main plate body 1, and the fixing block 3 is injection molded to the rear of the main plate body 1. The strong adhesive layer 2 is made of the following materials by weight percentage: 10%-40% synthetic rubber, 10%-40% oil, 35%-65% tackifying resin, and 0.001%-2% antioxidant.

[0021] Specifically, the synthetic rubber is composed of a first synthetic rubber and a second synthetic rubber, wherein the first synthetic rubber is a styrene-isoprene-styrene block copolymer, accounting for 5%-35% by mass; the second synthetic rubber is a styrene-butadiene-styrene block copolymer, accounting for 9%-40% by mass; the oil is a naphthenic oil; the tackifying resin is composed of a first tackifying resin and a second tackifying resin, wherein the first tackifying resin is rosin resin, accounting for 5%-30% by mass; the second tackifying resin is dicyclopentadiene petroleum resin, accounting for 30%-70% by mass; and the antioxidant is composed of a first antioxidant and a second antioxidant, wherein the first antioxidant is pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), accounting for 0.001%-2% by mass; and the second antioxidant is tris(2,4-di-tert-butylphenyl) phosphite, accounting for 0.001%-2% by mass.

[0022] Specifically, the first synthetic rubber has a mass percentage of 8%-30%, the second synthetic rubber has a mass percentage of 20%-40%, the first tackifying resin has a mass percentage of 8%-25%, the second tackifying resin has a mass percentage of 25%-500%, the first antioxidant has a mass percentage of 0.5%-1.5%, and the second antioxidant has a mass percentage of 0.5%-1.5%. The above mass percentages refer to the percentages of all materials.

[0023] The strong adhesive layer 2 is made of the following materials in weight percentage: Example 1, 5%-35% styrene-isoprene-styrene block copolymer, 9%-40% styrene-butadiene-styrene block copolymer, 10%-40% naphthenic oil, 5%-30% rosin resin, 30%-70% dicyclopentadiene petroleum resin, 0.001%-2% pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), and 0.001%-2% tris(2,4-di-tert-butylphenyl) phosphite. Example 2: 30% styrene-isoprene-styrene block copolymer, 10% styrene-butadiene-styrene block copolymer, 11% naphthenic oil, 18% rosin resin, 30% dicyclopentadiene petroleum resin, 0.5% pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), 0.5% tris(2,4-di-tert-butylphenyl) phosphite. Example 3: 10.5% styrene-isoprene-styrene block copolymer, 10% styrene-butadiene-styrene block copolymer, 20% naphthenic oil, 25% rosin resin, 34% dicyclopentadiene petroleum resin, 0.05% pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), 0.2% tris(2,4-di-tert-butylphenyl) phosphite.

[0024] SIS (Styrene-Isoprene Block Copolymer) rubber is a thermoplastic elastomer produced by solution polymerization of styrene and isoprene. It features good flowability, low emulsification, and excellent compatibility with additives. It also possesses good electrical properties, light transmittance, and air permeability, and can be used directly without vulcanization. SBS (Styrene-Butadiene-Styrene Block Copolymer) is a thermoplastic elastomer that combines the processability of plastics with the elasticity of rubber, belonging to the third generation of synthetic rubber. This material is prepared from styrene and butadiene through anionic solution polymerization. Its molecular structure includes both linear and star-shaped structures. It can be processed and molded without vulcanization, and the scraps are recyclable. It appears as white granules and has excellent tensile strength (10.0-22.0 MPa). Naphthenic oil is a mineral oil extracted from natural naphthenic crude oil, with cycloalkanes as the main component (content ≥70%). Its molecular structure is mainly composed of saturated cyclic carbon chains, exhibiting low pour point, high density, and excellent low-temperature performance. Rosin resin is a light-colored, highly polymerized (dimerized) petroleum resin with a high softening point, high viscosity, and excellent antioxidant properties. It is completely resistant to crystallization in its liquid state or solution. Dicyclopentadiene resin is a petroleum resin produced by polymerization of dicyclopentadiene (DCPD) under high temperature and pressure. It is a pale yellow, transparent liquid with a high softening point, strong thickening properties, and good stability. It is soluble in alcohol solvents but insoluble in water. Pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) can inhibit oxidation reactions and improve material stability. Tris(2,4-di-tert-butylphenyl) phosphite is a highly effective antioxidant, mainly used in polymer materials to delay oxidative degradation. It possesses thermal stability and free radical scavenging capabilities.

[0025] Styrene-isoprene-styrene block copolymers act as the primary adhesive, providing excellent flexibility and impact resistance. Styrene-butadiene-styrene block copolymers enhance cohesive strength and hardness while reducing costs. SBS is often blended with SIS to adjust the hardness of the colloid, improve holding power (creep resistance), and balance the three core performance indicators of pressure-sensitive adhesives: initial tack, holding power, and peel strength. Rosin resin provides excellent initial tack and peel strength. Dicyclopentadiene petroleum resin provides a good balance between initial tack and cohesive strength, and reduces costs. The synergistic effect of rosin resin and dicyclopentadiene petroleum resin can broaden the compatibility range with the adhered polymers, enabling the adhesive to exhibit stable adhesion on various surfaces (such as stainless steel, plastics, and glass). Pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) acts as the primary antioxidant, providing protection against peroxide free radicals. Tris(2,4-di-tert-butylphenyl) phosphite acts as an auxiliary antioxidant, providing protection against the decomposition of hydrogen peroxide. The synergistic effect of these antioxidants, working together through different mechanisms, provides comprehensive protection for elastomers containing unsaturated double bonds (easily oxidized), such as styrene-isoprene-styrene block copolymers and styrene-butadiene-styrene block copolymers, preventing problems like discoloration, brittleness, and loss of tackiness due to aging.

[0026] Specifically, the front surface of the main disk is pre-coated with a coupling agent, which is a silane coupling agent KH-550 or KH-560, with a coating thickness of 10-50 μm.

[0027] Specifically, the strong adhesive layer 2 is prepared by the following steps: ① First, the synthetic rubber, oil, tackifying resin and antioxidant are mixed, preheated to the set temperature and kept at the temperature for a certain time to form a liquid adhesive; ② The adhesive is applied to the front surface of the main plate and naturally cooled and cured to form a strong adhesive layer.

[0028] Specifically, a mounting base 4 is formed on the rear surface of the main plate 1, and the fixing block 3 includes a flange 5 and a column 6 formed at the bottom of the flange 5; the flange 5 is covered inside the mounting base 4, the fixing block 3 is made of plastic, and a number of insertion holes 7 are provided on the fixing block 3. A number of insertion rods are integrally provided inside the mounting base 4, and the insertion rods are inserted into the insertion holes 7 so that the fixing block 3 will not easily come out of the interior of the mounting base 4.

[0029] In summary, the strong adhesive drip suction cup of the present invention has the following advantages:

[0030] 1. Excellent tack balance: The balance between initial tack, adhesive force (peel force) and cohesive force (holding tack) ensures that after the bond is established, the adhesive can generate strong peel force to form a strong bond joint that requires a large force to peel off, thus ensuring the reliability of the bond.

[0031] 2. Wide range of applicable temperatures and environmental adaptability: SIS itself has excellent flexibility, and with the plasticizing effect of naphthenic oil, the colloid can still maintain good flexibility and viscosity at low temperatures, without becoming hard and brittle rapidly, thus ensuring the performance in cold environments. The introduction of SBS increases the softening point and cohesive strength of the colloid, so that it can still maintain a certain shape stability and shear resistance at higher temperatures, and is not prone to slippage or overflow.

[0032] 3. Excellent aging resistance and service life: The SIS and SBS molecular chains in the formula contain chemically active carbon-carbon double bonds, which are easily broken or cross-linked under the action of heat, oxygen, and ultraviolet light, leading to adhesive failure, brittleness, or cracking. Dual antioxidants provide comprehensive protection, effectively delaying the aging process and ensuring that the adhesive's performance deteriorates slowly after long-term use or storage, greatly extending its service life.

[0033] 4. Good processability and applicability: The adhesive adopts a composite tackifying resin system, which has good bonding effect on a variety of polar and non-polar materials (such as stainless steel, plastic, glass, wood, paper, etc.).

[0034] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the protection scope of the present invention.

Claims

1. A highly adhesive drip suction cup, characterized in that, It includes a main disc body, a strong adhesive layer, and a fixing block. The strong adhesive layer is adhered to the front of the main disc body, and the fixing block is injection molded to the rear of the main disc body. The strong adhesive layer is made of the following materials by weight percentage: 10%-40% synthetic rubber, 10%-40% oil, 35%-65% tackifying resin, and 0.001%-2% antioxidant.

2. The strong adhesive drip absorber according to claim 1, characterized in that: The synthetic rubber is composed of a first synthetic rubber and a second synthetic rubber, wherein the first synthetic rubber is a styrene-isoprene-styrene block copolymer, accounting for 5%-35% by mass; the second synthetic rubber is a styrene-butadiene-styrene block copolymer, accounting for 9%-40% by mass; and the oil is a naphthenic oil.

3. The strong adhesive drip absorber according to claim 1, characterized in that: The tackifying resin is composed of a first tackifying resin and a second tackifying resin, wherein the first tackifying resin is rosin resin, accounting for 5%-30% by mass; and the second tackifying resin is dicyclopentadiene petroleum resin, accounting for 30%-70% by mass. The antioxidant is composed of a first antioxidant and a second antioxidant, wherein the first antioxidant is pentaerythritol tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate), accounting for 0.001%-2% by mass; and the second antioxidant is tris(2,4-di-tert-butylphenyl) phosphite, accounting for 0.001%-2% by mass.

4. The strong adhesive drip absorber according to claim 2, characterized in that: The first synthetic rubber has a mass percentage of 8%-30%, the second synthetic rubber has a mass percentage of 20%-40%, the first tackifying resin has a mass percentage of 8%-25%, the second tackifying resin has a mass percentage of 25%-500%, the first antioxidant has a mass percentage of 0.5%-1.5%, and the second antioxidant has a mass percentage of 0.5%-1.5%.

5. A highly adhesive drip suction cup according to claim 1, characterized in that: The main body is injection molded from TPU or PVC material.

6. A highly adhesive drip suction cup according to claim 5, characterized in that: The front surface of the main disk is pre-coated with a coupling agent, which is a silane coupling agent KH-550 or KH-560, with a coating thickness of 10-50 μm.

7. A highly adhesive drip suction cup according to any one of claims 1-6, characterized in that: The strong adhesive layer is prepared by the following steps: ① First, the synthetic rubber, oil, tackifying resin and antioxidant are mixed, preheated to a set temperature and kept at that temperature for a certain time to form a liquid adhesive; ② The adhesive is applied to the front surface of the main plate and naturally cooled and cured to form a strong adhesive layer.

8. A highly adhesive drip suction cup according to claim 1, characterized in that: A mounting base is formed on the rear surface of the main body, and the fixing block includes a flange and a column formed at the bottom of the flange; the flange is enclosed in the mounting base.

9. A highly adhesive drip suction cup according to claim 8, characterized in that: The fixing block is made of plastic and has several insertion holes. The mounting base has several insertion rods integrated inside, and the insertion rods are inserted into the insertion holes.

Images