A kind of PE tape glue and preparation method thereof

Abstract

The invention relates to the field of adhesive tapes, in particular to a PE adhesive tape glue and a preparation method thereof. The adhesive tape glue is formed on a PE film surface by ultraviolet curing; a terminal hydroxyl polybutadiene liquid rubber is further modified by chlorinated organosilicon-modified eugenol to obtain organosilicon-modified polybutadiene liquid rubber containing a plurality of photosensitive groups; wherein the chlorinated organosilicon-modified eugenol is prepared by using green bio-based raw material eugenol as a raw material and replacing it with methyl (7-octenyl) dichlorosilane; a nano silicon dioxide coating layer is first formed on the surface of nano zinc oxide by using sodium silicate, and mercaptopropyl trimethoxysilane is used to mercaptolate the nano zinc oxide, and then the chlorinated organosilicon-modified eugenol is grafted on the surface of the nano zinc oxide by mercapto-ene photo-click reaction, and then further quaternized by using N,N-dimethyldodecylamine to obtain modified nano zinc oxide, and the modified nano zinc oxide is introduced into the glue to greatly improve the antibacterial property, UV resistance and water resistance of the nano zinc oxide.

Description

Technical Field

[0001] The invention relates to the field of adhesive tapes, in particular to PE adhesive tape glue and a preparation method thereof. Background Art

[0002] The tape composed of a PE (polyethylene) base layer and an adhesive layer is called PE tape. Because PE tape has good mechanical strength and bonding and sealing properties, it is currently widely used in the fixing and covering of pipes and lines in refrigerators, air conditioners, greenhouses, etc.

[0003] Due to the insufficient performance of the existing PE tapes on the market and the influence of the service environment, some of the adhesive layers exposed to the air are easily corroded by heat, oxygen, light, mold or other chemicals, which leads to a decrease in the adhesion of the PE tape and affects its application effect and durability. Summary of the invention

[0004] The object of the present invention is to provide a PE tape glue and a preparation method thereof, so as to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The invention discloses a PE tape glue. The raw materials of the tape glue are composed of 5-10 parts of vinyl styrene-butadiene rubber, 22-33 parts of organosilicon-modified polybutadiene liquid rubber, 5-10 parts of tackifying resin, 1-5 parts of modified nano zinc oxide, 1-3 parts of softener and 0.1-0.3 parts of photoinitiator in parts by weight.

[0007] Furthermore, the tackifying resin is one or a combination of petroleum resin, phenolic resin and terpene resin.

[0008] Furthermore, the softener is one of paraffin oil and paraffin or a combination thereof.

[0009] Further, the preparation of modified nano zinc oxide includes the following steps:

[0010] 1) Mix nano zinc oxide and deionized water, ultrasonically shake for 20-30 minutes, add sodium silicate solution until the pH value is 9.4-9.6, heat to 85-90° C., add sodium silicate, adjust the pH value to 8.4-8.6, age for 2-3 hours, filter, wash and dry to obtain composite nano zinc oxide;

[0011] 2) Mix mercaptopropyltrimethoxysilane and ethanol, add composite nano zinc oxide, stir in a 68-72° C. water bath for 3-4 hours, cool, filter, wash, and dry to obtain mercaptolated composite nano zinc oxide;

[0012] 3) Mixing the thiol-modified composite nano zinc oxide and tetrahydrofuran, adding chlorine-containing organosilicon-modified eugenol and triphenylphosphine oxide, irradiating under a 405nm wavelength ultraviolet lamp for 1-2h, washing and drying to obtain chlorine-containing grafted composite nano zinc oxide;

[0013] 4) Mix the chlorine-grafted composite nano zinc oxide and chloroform, add N,N-dimethyldodecylamine, keep warm at 40-45° C. for 28-30 hours, pour into anhydrous ethanol, filter, wash and dry to obtain modified nano zinc oxide.

[0014] Further, the preparation of the organosilicon-modified polybutadiene liquid rubber comprises the following steps:

[0015] In a nitrogen atmosphere, hydroxyl-terminated polybutadiene liquid rubber and chlorinated organosilicon-modified eugenol are mixed, kept warm for 2-3 hours in an ice-water bath at 0°C, and placed at 40°C and a vacuum degree of -0.08MPa for 10-12 hours to obtain organosilicon-modified polybutadiene liquid rubber.

[0016] Vinyl styrene butadiene rubber and polybutadiene liquid rubber were selected as base rubbers, and ultraviolet curing was used to form the tape glue on the surface of PE film to prepare PE tape. The terminal hydroxyl polybutadiene liquid rubber was further modified with chlorinated silicone-modified eugenol to obtain silicone-modified polybutadiene liquid rubber containing multiple photosensitive groups, thereby improving the water resistance and antibacterial properties of the base rubber. The chlorinated silicone-modified eugenol was prepared by using the green bio-based raw material eugenol as raw material and replacing it with methyl (7-octenyl) dichlorosilane. The introduction of methyl (7-octenyl) dichlorosilane greatly improved its water resistance and thermal stability.

[0017] Furthermore, the mass ratio of the mercaptolated composite nano zinc oxide to the chlorine-containing organosilicon-modified eugenol is 1.6:2.1.

[0018] Furthermore, the mass ratio of the hydroxy-terminated polybutadiene liquid rubber to the chlorinated silicone-modified eugenol is 10:8.

[0019] Further, the preparation of chlorine-containing organosilicon-modified eugenol comprises the following steps:

[0020] (1) Under a nitrogen atmosphere, 1,7-octadiene and Karstedt catalyst are mixed, methyldichlorosilane is added, the mixture is kept at 18-30° C. for 22-24 hours, and distilled under reduced pressure to obtain methyl(7-octenyl)dichlorosilane;

[0021] (2) Under a nitrogen atmosphere, eugenol, tetrahydrofuran and hydroquinone are mixed, methyl (7-octenyl) dichlorosilane is added, and the mixture is kept in an ice water bath at 0° C. for 1-2 hours to obtain chlorine-containing organosilicon-modified eugenol.

[0022] Furthermore, a method for preparing PE tape glue comprises the following steps: mixing vinyl styrene butadiene rubber, silicone-modified polybutadiene liquid rubber, tackifying resin, modified nano zinc oxide, and softener, adding photoinitiator, and continuing stirring to obtain PE tape glue.

[0023] Furthermore, a PE tape is prepared by the following steps: coating PE tape glue on the surface of a PE film, and performing a photocuring treatment to obtain a PE tape.

[0024] The working conditions of the light curing treatment are: irradiation with light of 405nm wavelength for 2-5s.

[0025] Beneficial effects of the present invention:

[0026] The invention provides a PE tape glue and a preparation method thereof. Through component design and modification, the prepared PE tape glue has high bonding and sealing properties, and simultaneously has high antibacterial properties, UV resistance and water resistance.

[0027] In the present invention, vinyl styrene-butadiene rubber and polybutadiene liquid rubber are selected as base rubbers, and ultraviolet curing is adopted to form tape glue on the surface of a PE film, so as to prepare a PE tape; in order to further improve the water resistance and antibacterial property of the base rubber, chlorinated organosilicon-modified eugenol is used to further modify the terminal hydroxyl polybutadiene liquid rubber, so as to obtain organosilicon-modified polybutadiene liquid rubber containing a plurality of photosensitive groups; wherein the chlorinated organosilicon-modified eugenol is prepared by using green bio-based raw material eugenol as a raw material and replacing it with methyl (7-octenyl) dichlorosilane, and the introduction of methyl (7-octenyl) dichlorosilane greatly improves the water resistance and thermal stability of the eugenol.

[0028] In order to give the adhesive tape excellent resistance to ultraviolet aging, nano zinc oxide is selected as filler. In order to solve the problem that nano zinc oxide is easy to agglomerate and affects its performance, the present invention first uses sodium silicate to form a nano silicon dioxide coating layer on the surface of nano zinc oxide. In order to further improve its uniformity of dispersion in glue, mercaptopropyl trimethoxysilane is used to thiolate it, and then chlorine-containing organosilicon-modified eugenol is grafted on its surface by mercapto-ene photoclick reaction. Then, N,N-dimethyldodecylamine is used for further quaternization to obtain modified nano zinc oxide. The modified nano zinc oxide is introduced into the glue to greatly improve its antibacterial, ultraviolet resistance and water resistance, and effectively improve the bonding strength between the tape glue and the base film, thereby extending the service life of the PE tape. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, and back, the directional indication is only used to explain a specific posture such as the relative position relationship between the components, the movement status, etc. If the specific posture changes, the directional indication will also change accordingly. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0031] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the following embodiments are only used to explain the present invention, and are not used to limit the present invention.

[0032] Embodiment 1: A method for preparing PE tape glue, comprising the following steps: mixing vinyl styrene butadiene rubber, silicone-modified polybutadiene liquid rubber, tackifying resin, modified nano zinc oxide, and a softener, adding a photoinitiator, and continuing to stir to obtain a PE tape glue;

[0033] The raw material composition of the tape glue is as follows: 5 parts of vinyl styrene-butadiene rubber, 22 parts of silicone-modified polybutadiene liquid rubber, 5 parts of tackifying resin, 1 part of modified nano zinc oxide, 1 part of softener, and 0.1 part of photoinitiator, in parts by weight;

[0034] The tackifying resin is terpene resin; the softener is paraffin oil; the photoinitiator is triphenylphosphine oxide;

[0035] The preparation of the modified nano zinc oxide comprises the following steps:

[0036] 1) Mix 2 g of nano zinc oxide and 10 mL of deionized water, ultrasonically shake for 20 min, add 0.05 mol / L sodium silicate solution until the pH value is 9.4, heat to 85 ° C, add 0.4 g of sodium silicate, adjust the pH value to 8.4, age for 3 h, filter, wash, and dry to obtain composite nano zinc oxide;

[0037] 2) Mix 2 g of mercaptopropyltrimethoxysilane and 58 mL of ethanol, add 3 g of composite nano zinc oxide, stir in a 68° C. water bath for 4 h, cool, filter, wash, and dry to obtain thiolated composite nano zinc oxide;

[0038] 3) 1.6 g of thiol-modified composite nano zinc oxide and 48 mL of tetrahydrofuran were mixed, 2.1 g of chlorine-containing organosilicon-modified eugenol and 0.02 g of triphenylphosphine oxide were added, and the mixture was irradiated under a 405 nm ultraviolet light for 1 h, washed and dried to obtain chlorine-containing grafted composite nano zinc oxide;

[0039] 4) Mix 5 g of chlorine-grafted composite nano zinc oxide and 100 mL of chloroform, add 8 mL of N,N-dimethyldodecylamine, keep warm at 40° C. for 30 h, pour into 200 mL of anhydrous ethanol, filter, wash, and dry to obtain modified nano zinc oxide;

[0040] The preparation of the organosilicon-modified polybutadiene liquid rubber comprises the following steps:

[0041] In a nitrogen atmosphere, 10 g of hydroxyl-terminated polybutadiene liquid rubber and 8 g of chlorinated organosilicon-modified eugenol were mixed, kept in an ice-water bath at 0°C for 2 h, and placed at 40°C and a vacuum degree of -0.08 MPa for 10 h to obtain organosilicon-modified polybutadiene liquid rubber;

[0042] The preparation of the chlorine-containing organosilicon-modified eugenol comprises the following steps:

[0043] (1) Under a nitrogen atmosphere, 1.1 g of 1,7-octadiene and 50 mg of Karstedt catalyst were mixed, 1.15 g of methyldichlorosilane was added, the mixture was kept at 18° C. for 24 h, and vacuum distilled to obtain methyl(7-octenyl)dichlorosilane;

[0044] (2) Under a nitrogen atmosphere, 1.64 g of eugenol, 50 mL of tetrahydrofuran, and 0.5 g of hydroquinone were mixed, 2.24 g of methyl (7-octenyl) dichlorosilane was added, and the mixture was kept in an ice-water bath at 0° C. for 1 h to obtain chlorinated organosilicon-modified eugenol;

[0045] A PE tape has the following preparation steps: coating PE tape glue on the surface of a PE film by 30 μm, and photocuring the film to obtain a PE tape; the working conditions of the photocuring treatment are: irradiating the film under light of 405 nm wavelength for 3 seconds.

[0046] Embodiment 2: A method for preparing PE tape glue, comprising the following steps: mixing vinyl styrene butadiene rubber, silicone-modified polybutadiene liquid rubber, tackifying resin, modified nano zinc oxide, and a softener, adding a photoinitiator, and continuing to stir to obtain a PE tape glue;

[0047] The raw material composition of the tape glue is as follows: 7 parts of vinyl styrene-butadiene rubber, 28 parts of silicone-modified polybutadiene liquid rubber, 7 parts of tackifying resin, 3 parts of modified nano zinc oxide, 2 parts of softener, and 0.2 parts of photoinitiator.

[0048] The tackifying resin is terpene resin; the softener is paraffin oil; the photoinitiator is triphenylphosphine oxide;

[0049] The preparation of the modified nano zinc oxide comprises the following steps:

[0050] 1) Mix 2 g of nano zinc oxide and 10 mL of deionized water, ultrasonically shake for 25 min, add 0.05 mol / L sodium silicate solution until the pH value is 9.5, heat to 88 ° C, add 0.4 g of sodium silicate, adjust the pH value to 8.5, age for 2.5 h, filter, wash, and dry to obtain composite nano zinc oxide;

[0051] 2) Mix 2 g of mercaptopropyltrimethoxysilane and 58 mL of ethanol, add 3 g of composite nano zinc oxide, stir in a 70° C. water bath for 3.5 h, cool, filter, wash, and dry to obtain thiolated composite nano zinc oxide;

[0052] 3) 1.6 g of thiol-modified composite nano zinc oxide and 48 mL of tetrahydrofuran were mixed, 2.1 g of chlorine-containing organosilicon-modified eugenol and 0.02 g of triphenylphosphine oxide were added, and the mixture was irradiated under a 405 nm ultraviolet light for 1.5 h, washed and dried to obtain chlorine-containing grafted composite nano zinc oxide;

[0053] 4) Mix 5 g of chlorine-grafted composite nano zinc oxide and 100 mL of chloroform, add 8 mL of N,N-dimethyldodecylamine, keep warm at 43° C. for 29 h, pour into 200 mL of anhydrous ethanol, filter, wash, and dry to obtain modified nano zinc oxide;

[0054] The preparation of the organosilicon-modified polybutadiene liquid rubber comprises the following steps:

[0055] In a nitrogen atmosphere, 10 g of hydroxyl-terminated polybutadiene liquid rubber and 8 g of chlorinated organosilicon-modified eugenol were mixed, kept in an ice-water bath at 0°C for 2.5 h, and placed at 40°C and a vacuum degree of -0.08 MPa for 11 h to obtain organosilicon-modified polybutadiene liquid rubber;

[0056] The preparation of the chlorine-containing organosilicon-modified eugenol comprises the following steps:

[0057] (1) Under a nitrogen atmosphere, 1.1 g of 1,7-octadiene and 50 mg of Karstedt catalyst were mixed, 1.15 g of methyldichlorosilane was added, the mixture was kept at 25° C. for 23 h, and vacuum distilled to obtain methyl(7-octenyl)dichlorosilane;

[0058] (2) Under a nitrogen atmosphere, 1.64 g of eugenol, 50 mL of tetrahydrofuran, and 0.5 g of hydroquinone were mixed, 2.24 g of methyl (7-octenyl) dichlorosilane was added, and the mixture was kept in an ice-water bath at 0° C. for 1.5 h to obtain chlorine-containing organosilicon-modified eugenol;

[0059] A PE tape has the following preparation steps: coating PE tape glue on the surface of a PE film by 30 μm, and photocuring the film to obtain a PE tape; the working conditions of the photocuring treatment are: irradiating the film under light of 405 nm wavelength for 3 seconds.

[0060] Embodiment 3: A method for preparing PE tape glue, comprising the following steps: mixing vinyl styrene butadiene rubber, silicone-modified polybutadiene liquid rubber, tackifying resin, modified nano zinc oxide, and a softener, adding a photoinitiator, and continuing to stir to obtain a PE tape glue;

[0061] The raw material composition of the tape glue is as follows: 10 parts of vinyl styrene-butadiene rubber, 33 parts of silicone-modified polybutadiene liquid rubber, 10 parts of tackifying resin, 5 parts of modified nano zinc oxide, 3 parts of softener, and 0.3 parts of photoinitiator, in parts by weight;

[0062] The tackifying resin is terpene resin; the softener is paraffin oil; the photoinitiator is triphenylphosphine oxide;

[0063] The preparation of the modified nano zinc oxide comprises the following steps:

[0064] 1) Mix 2 g of nano zinc oxide and 10 mL of deionized water, ultrasonically shake for 30 min, add 0.05 mol / L sodium silicate solution until the pH value is 9.6, heat to 90° C., add 0.4 g of sodium silicate, adjust the pH value to 8.6, age for 2 h, filter, wash, and dry to obtain composite nano zinc oxide;

[0065] 2) Mix 2 g of mercaptopropyltrimethoxysilane and 58 mL of ethanol, add 3 g of composite nano zinc oxide, stir in a 72° C. water bath for 3 h, cool, filter, wash, and dry to obtain thiolated composite nano zinc oxide;

[0066] 3) 1.6 g of thiol-modified composite nano zinc oxide and 48 mL of tetrahydrofuran were mixed, 2.1 g of chlorine-containing organosilicon-modified eugenol and 0.02 g of triphenylphosphine oxide were added, and the mixture was irradiated under a 405 nm ultraviolet light for 2 h, washed and dried to obtain chlorine-containing grafted composite nano zinc oxide;

[0067] 4) Mix 5 g of chlorine-grafted composite nano zinc oxide and 100 mL of chloroform, add 8 mL of N,N-dimethyldodecylamine, keep warm at 45° C. for 28 h, pour into 200 mL of anhydrous ethanol, filter, wash, and dry to obtain modified nano zinc oxide;

[0068] The preparation of the organosilicon-modified polybutadiene liquid rubber comprises the following steps:

[0069] In a nitrogen atmosphere, 10 g of hydroxyl-terminated polybutadiene liquid rubber and 8 g of chlorinated organosilicon-modified eugenol were mixed, kept in an ice-water bath at 0°C for 3 h, and placed at 40°C and a vacuum degree of -0.08 MPa for 12 h to obtain organosilicon-modified polybutadiene liquid rubber;

[0070] The preparation of the chlorine-containing organosilicon-modified eugenol comprises the following steps:

[0071] (1) Under a nitrogen atmosphere, 1.1 g of 1,7-octadiene and 50 mg of Karstedt catalyst were mixed, 1.15 g of methyldichlorosilane was added, the mixture was kept at 30° C. for 22 h, and vacuum distilled to obtain methyl(7-octenyl)dichlorosilane;

[0072] (2) Under a nitrogen atmosphere, 1.64 g of eugenol, 50 mL of tetrahydrofuran, and 0.5 g of hydroquinone were mixed, 2.24 g of methyl (7-octenyl) dichlorosilane was added, and the mixture was kept in an ice-water bath at 0° C. for 2 h to obtain chlorine-containing organosilicon-modified eugenol;

[0073] A PE tape has the following preparation steps: coating PE tape glue on the surface of a PE film by 30 μm, and photocuring the film to obtain a PE tape; the working conditions of the photocuring treatment are: irradiating the film under light of 405 nm wavelength for 3 seconds.

[0074] Comparative Example 1: Taking Example 3 as the control group, the modified nano zinc oxide was replaced by composite nano zinc oxide, and the other processes were normal.

[0075] Comparative Example 2: Example 3 was used as a control group, N,N-dimethyldodecylamine was not added, and other processes were normal.

[0076] Comparative Example 3: Example 3 was used as a control group, chlorine-containing organosilicon-modified eugenol was not prepared, and other processes were normal.

[0077] Sources of raw materials used (for demonstration purposes only):

[0078] PE film 005 (thickness 0.05mm): Dongguan Langtaosha Electronics Co., Ltd.; terpene resin 9003-74-1: Hubei Qifei Pharmaceutical Chemical Co., Ltd.; vinyl styrene butadiene rubber (HVSSBR) SSBR2466: Taiwan Rubber Co., Ltd.; paraffin oil 8012-95-1: Hubei Xinhongli Chemical Co., Ltd.; triphenylphosphine oxide S30524, Karstedt catalyst 81032-58-8: Shanghai Yuanye Biotechnology Co., Ltd.; hydroxyl-terminated polybutadiene liquid rubber 69102-90-5: Shandong Jiaying Chemical Technology Co., Ltd.; Nano zinc oxide Z141332, sodium silicate S302432, mercaptopropyltrimethoxysilane M100619, tetrahydrofuran T103263, N,N-dimethyldodecylamine N159397, 1,7-octadiene O159998, methyldichlorosilane D111128, eugenol E110640, hydroquinone H108945: Aladdin reagent; ethanol, chloroform, analytical grade: Sinopharm Group reagent.

[0079] Performance test: The performance test was performed on the adhesive tapes prepared in the embodiments and comparative examples:

[0080] Water resistance: characterized by water absorption, weigh the tape m0, soak it in deionized water at 25°C for 24 hours, take it out, wipe it dry and weigh it m1, water absorption = (m1-m0) / m0×100%; Antibacterial property: Staphylococcus aureus ATCC6538 was used as the test strain, and the test was carried out with reference to QB / T 2591-2003; Ultraviolet resistance: Ultraviolet aging test was carried out in artificial aging equipment, the ultraviolet light source was a 20W UV-C ultraviolet lamp, the characteristic wavelength of ultraviolet radiation was 253.7nm, and the ultraviolet radiation intensity was 1100μW / cm 2 The UV aging time is 360 hours. Observe whether there are any hardening, brittleness, breakage and other phenomena. If there are no such phenomena, it is excellent, otherwise it is unqualified. The results are shown in Table 1.

[0081] Table 1

[0082] Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Water absorption (%) 2.91 2.89 2.88 3.68 3.74 3.92 Antibacterial rate (%) 99.98 99.99 100 91.24 93.52 89.37 UV resistance excellent excellent excellent Failure Failure Failure

[0083] The invention provides a PE tape glue and a preparation method thereof. Through component design and modification, the prepared PE tape glue has high bonding and sealing properties, and simultaneously has high antibacterial properties, UV resistance and water resistance.

[0084] By comparing Example 3 with Comparative Examples 1 and 2, it can be seen that in order to give the tape excellent resistance to ultraviolet aging, nano zinc oxide is selected as a filler. In order to solve the problem that nano zinc oxide is easy to agglomerate and affects its performance, in the present invention, sodium silicate is first used to form a nano silicon dioxide coating layer on the surface of nano zinc oxide. In order to further improve its uniformity of dispersion in the glue, mercaptopropyl trimethoxysilane is used to thiolate it, and then chlorine-containing silicone-modified eugenol is grafted on its surface by mercapto-ene photoclick reaction, and then further quaternized by N,N-dimethyldodecylamine to obtain modified nano zinc oxide. The modified nano zinc oxide is introduced into the glue to greatly improve its antibacterial, ultraviolet resistance and water resistance, and effectively improve the bonding strength between the tape glue and the base film, thereby extending the service life of the PE tape.

[0085] By comparing Example 3 with Comparative Example 3, it can be seen that in the present invention, vinyl styrene-butadiene rubber and polybutadiene liquid rubber are selected as base rubbers, and ultraviolet curing is used to form the tape glue on the surface of the PE film to prepare the PE tape; in order to further improve the water resistance and antibacterial properties of the base rubber, the terminal hydroxyl polybutadiene liquid rubber is further modified with chlorinated silicone-modified eugenol to obtain silicone-modified polybutadiene liquid rubber containing multiple photosensitive groups; wherein the chlorinated silicone-modified eugenol is prepared by using the green bio-based raw material eugenol as a raw material and replacing it with methyl (7-octenyl) dichlorosilane, and the introduction of methyl (7-octenyl) dichlorosilane greatly improves its water resistance and thermal stability.

[0086] The above descriptions are only embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the present invention specification under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A PE tape glue, characterized in that: The raw material composition of the tape glue is as follows: 5-10 parts of vinyl styrene-butadiene rubber, 22-33 parts of silicone-modified polybutadiene liquid rubber, 5-10 parts of tackifying resin, 1-5 parts of modified nano zinc oxide, 1-3 parts of softener, and 0.1-0.3 parts of photoinitiator, in parts by weight; The preparation of the modified nano zinc oxide comprises the following steps: 1) Mix nano zinc oxide and deionized water, ultrasonically shake for 20-30 minutes, add sodium silicate solution until the pH value is 9.4-9.6, heat to 85-90° C., add sodium silicate, adjust the pH value to 8.4-8.6, age for 2-3 hours, filter, wash and dry to obtain composite nano zinc oxide; 2) Mix mercaptopropyltrimethoxysilane and ethanol, add composite nano zinc oxide, stir in a 68-72° C. water bath for 3-4 hours, cool, filter, wash, and dry to obtain mercaptolated composite nano zinc oxide; 3) Mixing the thiol-modified composite nano zinc oxide and tetrahydrofuran, adding chlorine-containing organosilicon-modified eugenol and triphenylphosphine oxide, irradiating under a 405nm wavelength ultraviolet lamp for 1-2h, washing and drying to obtain chlorine-containing grafted composite nano zinc oxide; 4) Mixing the chlorine-grafted composite nano zinc oxide and chloroform, adding N,N-dimethyldodecylamine, keeping the mixture at 40-45° C. for 28-30 hours, pouring the mixture into anhydrous ethanol, filtering, washing and drying the mixture to obtain modified nano zinc oxide; The preparation of the organosilicon-modified polybutadiene liquid rubber comprises the following steps: In a nitrogen atmosphere, hydroxy-terminated polybutadiene liquid rubber and chlorinated organosilicon-modified eugenol are mixed, kept in an ice-water bath at 0°C for 2-3 hours, and placed at 40°C for 10-12 hours to obtain organosilicon-modified polybutadiene liquid rubber; The preparation of the chlorine-containing organosilicon-modified eugenol comprises the following steps: (1) Under a nitrogen atmosphere, 1,7-octadiene and Karstedt catalyst are mixed, methyldichlorosilane is added, the mixture is kept at 18-30° C. for 22-24 hours, and distilled under reduced pressure to obtain methyl(7-octenyl)dichlorosilane; (2) Under a nitrogen atmosphere, eugenol, tetrahydrofuran and hydroquinone are mixed, methyl (7-octenyl) dichlorosilane is added, and the mixture is kept in an ice water bath at 0° C. for 1-2 hours to obtain chlorine-containing organosilicon-modified eugenol.

2. A PE tape glue according to claim 1, characterized in that: The tackifying resin is one or a combination of petroleum resin, phenolic resin and terpene resin.

3. A PE tape glue according to claim 1, characterized in that: The softener is paraffin oil, paraffin or a combination thereof.

4. A PE tape glue according to claim 1, characterized in that: In the preparation of modified nano zinc oxide, the mass ratio of mercapto-composite nano zinc oxide and chlorine-containing organosilicon-modified eugenol is 1.6:2.

1.

5. The PE tape glue according to claim 1, characterized in that: In the preparation of organosilicon-modified polybutadiene liquid rubber, the mass ratio of terminal hydroxyl polybutadiene liquid rubber to chlorine-containing organosilicon-modified eugenol is 10:

8.

6. A method for preparing a PE tape glue according to any one of claims 1 to 5, characterized in that: The following steps are involved: Vinyl styrene butadiene rubber, silicone modified polybutadiene liquid rubber, tackifying resin, modified nano zinc oxide and softener are mixed, a photoinitiator is added, and stirring is continued to obtain a PE tape glue.

7. A PE tape, characterized in that: A PE tape glue prepared by the preparation method of claim 6 is prepared, and the preparation steps are as follows: the PE tape glue is coated on the surface of the PE film, and a PE tape is obtained by photocuring.