CN111690353A - Low-temperature hot-melt pressure-sensitive adhesive and preparation method thereof - Google Patents
Low-temperature hot-melt pressure-sensitive adhesive and preparation method thereof Download PDFInfo
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- CN111690353A CN111690353A CN202010685018.5A CN202010685018A CN111690353A CN 111690353 A CN111690353 A CN 111690353A CN 202010685018 A CN202010685018 A CN 202010685018A CN 111690353 A CN111690353 A CN 111690353A
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- thermoplastic elastomer
- styrene
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 33
- 239000012943 hotmelt Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000011347 resin Substances 0.000 claims abstract description 104
- 229920005989 resin Polymers 0.000 claims abstract description 104
- 239000004014 plasticizer Substances 0.000 claims abstract description 69
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 62
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 34
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 34
- 239000003208 petroleum Substances 0.000 claims abstract description 34
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 16
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 16
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 25
- 229920001577 copolymer Polymers 0.000 claims description 17
- 239000005662 Paraffin oil Substances 0.000 claims description 16
- 239000004831 Hot glue Substances 0.000 claims description 15
- 229920002367 Polyisobutene Polymers 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 239000003784 tall oil Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 239000002199 base oil Substances 0.000 claims description 10
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 229920002857 polybutadiene Polymers 0.000 claims description 8
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 8
- 150000004982 aromatic amines Chemical class 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
- C09J193/04—Rosin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Abstract
The invention provides a low-temperature hot-melt pressure-sensitive adhesive and a manufacturing method thereof, and the low-temperature hot-melt pressure-sensitive adhesive comprises the following components: the plasticizer I, the plasticizer II, the plasticizer III, the thermoplastic elastomer I, the thermoplastic elastomer II, the tackifying resin I, the tackifying resin II and the antioxidant; the weight parts of the components are as follows: 5-25 parts of a first plasticizer, 5-20 parts of a second plasticizer, 5-20 parts of a third plasticizer, 5-30 parts of a first thermoplastic elastomer, 5-30 parts of a second thermoplastic elastomer, 10-35 parts of a first tackifying resin, 10-35 parts of a second tackifying resin and 0.05-2 parts of an antioxidant. Compared with the prior art, the invention improves the low-temperature performance of the product by using three different plasticizers; 2 different thermoplastic elastomers are used, wherein the second thermoplastic elastomer has higher cohesive strength, so that the problem of reduced cohesive force caused by more plasticizers can be effectively balanced; the rosin resin is used, so that the viscosity of the system can be ensured after the use amount of the petroleum resin is reduced.
Description
Technical Field
The invention relates to the field of chemical industry, in particular to a low-temperature hot-melt pressure-sensitive adhesive and a preparation method thereof.
Background
The hot-melt pressure-sensitive adhesive is a pressure-sensitive adhesive prepared by taking a thermoplastic polymer elastomer as a main matrix material, integrates the major characteristics of hot melting and pressure-sensitive 2, can be quickly coated, and does not need to be heated and dried; thicker bondlines can also be applied to bond low surface energy substrates. And the three wastes are not discharged in the production and use processes, so the adhesive is regarded as a safe and environment-friendly adhesive material.
In recent years, hot melt pressure sensitive adhesives have been developed rapidly, and their wide application is determined by the characteristics of hot melt pressure sensitive adhesives. Mainly embodied in the aspects of automobiles, sanitary products, adhesive tapes, labels, medical treatment and health, surface protection films, wood processing, shoe making and the like. With the improvement of living standard of people, the requirements of the technical field of polymer bonding on various composite materials are higher and higher, and especially, the application of labels and adhesive tapes puts higher requirements on the low temperature of hot melt pressure sensitive adhesives. More and more customers require that the hot-melt pressure-sensitive adhesive can be operated and applied in a very low temperature environment, labels and adhesive tapes can be labeled at a low temperature, and the hot-melt pressure-sensitive adhesive is ensured to have viscosity under a low temperature condition and cannot fall off from the surface of an adherend. Therefore, it is desirable to develop a low temperature resistant hot melt pressure sensitive adhesive to meet the market demand.
In order to solve the above problems, we have made a series of improvements.
Disclosure of Invention
The invention aims to provide a low-temperature hot-melt pressure-sensitive adhesive and a manufacturing method thereof, so as to overcome the defects and shortcomings in the prior art.
A low temperature hot melt pressure sensitive adhesive comprising: the adhesive comprises a first plasticizer, a second plasticizer, a third plasticizer, a first thermoplastic elastomer, a second thermoplastic elastomer, a first tackifying resin, a second tackifying resin and an antioxidant, wherein the following components in percentage by weight: the plasticizer I, the plasticizer II and the plasticizer III are different from each other, the thermoplastic elastomer I and the thermoplastic elastomer II are different from each other, the tackifying resin I and the tackifying resin II are different from each other, and the mass parts of the components are as follows:
5-25 parts of plasticizer,
5-20 parts of a second plasticizer,
5-20 parts of plasticizer,
5-30 parts of thermoplastic elastomer,
5-30 parts of thermoplastic elastomer,
10-35 parts of tackifying resin,
10-35 parts of tackifying resin II and
0.05-2 parts of antioxidant;
wherein, the first plasticizer is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture thereof;
the second plasticizer is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture of the synthetic base oil, the paraffin oil, the hydrogenated naphthenic oil and the low molecular weight polyisobutylene;
the plasticizer III is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture of the synthetic base oil, the paraffin oil, the hydrogenated naphthenic oil, the low molecular weight polyisobutylene, the liquid petroleum resin, the liquid rosin resin and the low molecular weight synthetic polybutadiene rubber;
the first thermoplastic elastomer is at least one of solution polymerized styrene-butadiene rubber, styrene-butadiene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-isoprene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer or a mixture thereof;
the second thermoplastic elastomer is at least one of solution polymerized styrene-butadiene rubber, styrene-butadiene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-isoprene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer or a mixture thereof;
the first tackifying resin is at least one of C5 petroleum resin, C5/C9 petroleum resin, hydrogenated C5 petroleum resin, hydrogenated C5/C9 petroleum resin, rosin resin and hydrogenated rosin resin or a mixture thereof;
the second tackifying resin is at least one of C5 petroleum resin, C5/C9 petroleum resin, hydrogenated C5 petroleum resin, hydrogenated C5/C9 petroleum resin, rosin resin and hydrogenated rosin resin or a mixture thereof;
the antioxidant is at least one of aromatic amine antioxidant, hindered phenol antioxidant and auxiliary antioxidant.
Further, the first plasticizer is paraffin oil.
Further, the second plasticizer is low-molecular-weight polyisobutylene.
Further, the plasticizer III is liquid rosin resin.
Further, the first thermoplastic elastomer is a styrene-isoprene-styrene copolymer.
Further, the second thermoplastic elastomer is a styrene-butadiene-styrene copolymer.
Further, the first tackifying resin is C5/C9 petroleum resin.
Furthermore, the second tackifying resin is rosin resin.
Further, the antioxidant is an aromatic amine antioxidant and an auxiliary antioxidant.
A preparation method of a low-temperature hot-melt pressure-sensitive adhesive comprises the following steps:
(1) heating the reaction kettle, adding the plasticizer I and the antioxidant in a formula amount into the reaction kettle, heating while stirring, setting the rotating speed at 30-40rpm, controlling the oil temperature at 165-170 ℃, controlling the material temperature at 140-150 ℃, closing the reaction kettle to wait for heating, vacuumizing, and controlling the reaction pressure to be less than or equal to-0.08 MPa;
(2) when the material temperature reaches 140-150 ℃, closing the vacuum, opening the reaction kettle, adding the first thermoplastic elastomer and the second thermoplastic elastomer into the reaction kettle, heating to 145-150 ℃, keeping the temperature, vacuumizing and stirring, opening the reaction kettle after 1 hour to check the melting condition of the thermoplastic elastomers, and if the thermoplastic elastomers are not melted, continuously vacuumizing, heating and stirring until the thermoplastic elastomers are completely melted;
(3) slowly adding the tackifying resin I and the tackifying resin II into the reaction kettle after the thermoplastic elastomer is completely melted, vacuumizing and stirring at 145-150 ℃, continuously adding the plasticizer II and the plasticizer III into the reaction kettle after 20min, stirring all the raw materials uniformly after 40min to obtain a semi-finished hot melt adhesive product, and taking the semi-finished hot melt adhesive product out of the reaction kettle and packaging to obtain a finished hot melt adhesive product.
The invention has the beneficial effects that:
compared with the prior art, the invention improves the low-temperature performance of the product by using three different plasticizers; 2 different thermoplastic elastomers are used, wherein the second thermoplastic elastomer has higher cohesive strength, so that the problem of reduced cohesive force caused by more plasticizers can be effectively balanced; the rosin resin is used, so that the viscosity of the system can be ensured after the use amount of the petroleum resin is reduced.
Detailed Description
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
The low-temperature hot-melt pressure-sensitive adhesive comprises the following components in parts by weight:
the plasticizer is 15 parts of paraffin oil
The thermoplastic elastomer is 25 parts of styrene-isoprene-styrene copolymer
The first tackifying resin is 35 parts of C5/C9 petroleum resin
25 parts of rosin resin as the second tackifying resin
1 part of antioxidant, namely aromatic amine antioxidant and auxiliary antioxidant.
The preparation method of the low-temperature hot-melt pressure-sensitive adhesive comprises the following steps:
(1) heating a reaction kettle, adding a plasticizer and an antioxidant in a formula amount into the reaction kettle, heating while stirring, setting the rotating speed at 35rpm, controlling the oil temperature at 170 ℃, controlling the material temperature at 140 ℃, closing the reaction kettle, waiting for heating, vacuumizing, and controlling the reaction pressure to be-0.07 MPa;
(2) when the material temperature reaches 140 ℃, closing vacuum, opening the reaction kettle, adding the thermoplastic elastomer into the reaction kettle, heating to 145 ℃, keeping the temperature, vacuumizing and stirring, opening the reaction kettle after 1 hour to check the melting condition of the thermoplastic elastomer, and continuously vacuumizing, heating and stirring if the thermoplastic elastomer is not melted until the thermoplastic elastomer is completely melted;
(3) and after the thermoplastic elastomer is completely melted, slowly adding the tackifying resin I and the tackifying resin II into the reaction kettle, vacuumizing and stirring at 150 ℃, continuously adding the plasticizer II and the plasticizer III into the reaction kettle after 20min, after about 40min, uniformly stirring all the raw materials to obtain a semi-finished hot melt adhesive, and taking out of the reaction kettle for packaging to obtain a finished hot melt adhesive.
Example 2
The low-temperature hot-melt pressure-sensitive adhesive comprises the following components in parts by weight:
15 parts of paraffin oil as plasticizer I
The second plasticizer is 10 parts of low molecular weight polyisobutylene
Liquid rosin resin with 10 parts of plasticizer III
The thermoplastic elastomer is 30 parts of styrene-isoprene-styrene copolymer
The tackifying resin I is 20 parts of C5/C9 petroleum resin
25 parts of rosin resin as the second tackifying resin
1 part of antioxidant, namely aromatic amine antioxidant and auxiliary antioxidant.
The preparation method of the low-temperature hot-melt pressure-sensitive adhesive comprises the following steps:
(1) heating a reaction kettle, adding a plasticizer I and an antioxidant in a formula amount into the reaction kettle, heating while stirring, setting the rotating speed at 35rpm, controlling the oil temperature at 170 ℃, controlling the material temperature at 140 ℃, closing the reaction kettle to wait for heating, vacuumizing, and controlling the reaction pressure to be-0.07 MPa;
(2) when the material temperature reaches 140 ℃, closing vacuum, opening the reaction kettle, adding the thermoplastic elastomer into the reaction kettle, heating to 145 ℃, keeping the temperature, vacuumizing and stirring, opening the reaction kettle after 1 hour to check the melting condition of the thermoplastic elastomer, and continuously vacuumizing, heating and stirring if the thermoplastic elastomer is not melted until the thermoplastic elastomer is completely melted;
(3) and after the thermoplastic elastomer is completely melted, slowly adding the tackifying resin I and the tackifying resin II into the reaction kettle, vacuumizing and stirring at 150 ℃, continuously adding the plasticizer II and the plasticizer III into the reaction kettle after 20min, after about 40min, uniformly stirring all the raw materials to obtain a semi-finished hot melt adhesive, and taking out of the reaction kettle for packaging to obtain a finished hot melt adhesive.
Example 3
The low-temperature hot-melt pressure-sensitive adhesive comprises the following components in parts by weight:
15 parts of paraffin oil as plasticizer I
The second plasticizer is 10 parts of low molecular weight polyisobutylene
Liquid rosin resin with 10 parts of plasticizer III
The first thermoplastic elastomer is 20 parts of styrene-isoprene-styrene copolymer
The second thermoplastic elastomer is 15 parts of styrene-butadiene-styrene copolymer
The tackifying resin I is 20 parts of C5/C9 petroleum resin
25 parts of rosin resin as the second tackifying resin
1 part of antioxidant, namely aromatic amine antioxidant and auxiliary antioxidant.
The preparation method of the low-temperature hot-melt pressure-sensitive adhesive comprises the following steps:
(1) heating a reaction kettle, adding a plasticizer I and an antioxidant in a formula amount into the reaction kettle, heating while stirring, setting the rotating speed at 35rpm, controlling the oil temperature at 170 ℃, controlling the material temperature at 140 ℃, closing the reaction kettle to wait for heating, vacuumizing, and controlling the reaction pressure to be-0.07 MPa;
(2) when the material temperature reaches 140 ℃, closing vacuum, opening the reaction kettle, adding the first thermoplastic elastomer and the second thermoplastic elastomer into the reaction kettle, heating to 145 ℃, keeping the temperature, vacuumizing and stirring, opening the reaction kettle after 1 hour to check the melting condition of the thermoplastic elastomers, and if the thermoplastic elastomers are not melted, continuously vacuumizing, heating and stirring until the thermoplastic elastomers are completely melted;
(3) and after the thermoplastic elastomer is completely melted, slowly adding the tackifying resin I and the tackifying resin II into the reaction kettle, vacuumizing and stirring at 150 ℃, continuously adding the plasticizer II and the plasticizer III into the reaction kettle after 20min, after about 40min, uniformly stirring all the raw materials to obtain a semi-finished hot melt adhesive, and taking out of the reaction kettle for packaging to obtain a finished hot melt adhesive.
The improvement principle of the invention is that three different plasticizers are used to improve the low-temperature performance of the product, compared with the prior art, paraffin oil of the first plasticizer can reduce the viscosity of the system and improve the wetting of the hot melt adhesive to a base material, low molecular weight polyisobutylene of the second plasticizer and liquid rosin resin of the third plasticizer are used to replace part of petroleum resin, the glass transition temperature of the 2 plasticizers is much lower than that of common petroleum resin, better low-temperature adhesion can be endowed to the hot melt pressure sensitive adhesive, and the 2 plasticizers have certain viscosity and cannot have great influence on the viscosity of the system. In addition, 2 different thermoplastic elastomers are used in the implementation of the invention, wherein the styrene-butadiene-styrene copolymer of the second thermoplastic elastomer has higher cohesive strength, so that the problem of reduced cohesive force caused by more plasticizers can be effectively balanced; rosin resin is also used in the system, and the resin has better viscosity, so that the viscosity of the system after the use amount of petroleum resin is reduced, including the properties of annular initial adhesion, stripping force and the like, can be ensured.
The results of comparing examples 1-3 with conventional hot melt adhesives are shown in the following table:
the results are combined to show that the product in the example 3 has relatively balanced performance, the low-temperature performance of the product is much better than that of the common hot melt adhesive, and the requirement of the market on low-temperature resistance can be met.
While the present invention has been described with reference to the specific embodiments, the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.
Claims (10)
1. A low temperature hot melt pressure sensitive adhesive comprising: the adhesive comprises a first plasticizer, a second plasticizer, a third plasticizer, a first thermoplastic elastomer, a second thermoplastic elastomer, a first tackifying resin, a second tackifying resin and an antioxidant, wherein the following components in percentage by weight: the plasticizer I, the plasticizer II and the plasticizer III are different from each other, the thermoplastic elastomer I and the thermoplastic elastomer II are different from each other, the tackifying resin I and the tackifying resin II are different from each other, and the mass parts of the components are as follows:
5-25 parts of plasticizer,
5-20 parts of a second plasticizer,
5-20 parts of plasticizer,
5-30 parts of thermoplastic elastomer,
5-30 parts of thermoplastic elastomer,
10-35 parts of tackifying resin,
10-35 parts of tackifying resin II and
0.05-2 parts of antioxidant;
wherein, the first plasticizer is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture thereof;
the second plasticizer is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture of the synthetic base oil, the paraffin oil, the hydrogenated naphthenic oil and the low molecular weight polyisobutylene;
the plasticizer III is at least one of synthetic base oil, paraffin oil, hydrogenated naphthenic oil, low molecular weight polyisobutylene, liquid petroleum resin, liquid rosin resin and low molecular weight synthetic polybutadiene rubber or a mixture of the synthetic base oil, the paraffin oil, the hydrogenated naphthenic oil, the low molecular weight polyisobutylene, the liquid petroleum resin, the liquid rosin resin and the low molecular weight synthetic polybutadiene rubber;
the first thermoplastic elastomer is at least one of solution polymerized styrene-butadiene rubber, styrene-butadiene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-isoprene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer or a mixture thereof;
the second thermoplastic elastomer is at least one of solution polymerized styrene-butadiene rubber, styrene-butadiene-styrene copolymer, styrene-ethylene-butylene-styrene copolymer, styrene-isoprene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer or a mixture thereof;
the first tackifying resin is at least one of C5 petroleum resin, C5/C9 petroleum resin, hydrogenated C5 petroleum resin, hydrogenated C5/C9 petroleum resin, rosin resin and hydrogenated rosin resin or a mixture thereof;
the second tackifying resin is at least one of C5 petroleum resin, C5/C9 petroleum resin, hydrogenated C5 petroleum resin, hydrogenated C5/C9 petroleum resin, rosin resin and hydrogenated rosin resin or a mixture thereof;
the antioxidant is at least one of aromatic amine antioxidant, hindered phenol antioxidant and auxiliary antioxidant.
2. A low temperature hot melt pressure sensitive adhesive according to claim 1, wherein the first plasticizer is paraffin oil.
3. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: and the second plasticizer is low-molecular-weight polyisobutylene.
4. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: and the plasticizer III is liquid rosin resin.
5. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: the first thermoplastic elastomer is styrene-isoprene-styrene copolymer.
6. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: and the second thermoplastic elastomer is a styrene-butadiene-styrene copolymer.
7. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: the first tackifying resin is C5/C9 petroleum resin.
8. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: and the second tackifying resin is rosin resin.
9. A low temperature hot melt pressure sensitive adhesive as claimed in claim 1, wherein: the antioxidant is aromatic amine antioxidant and auxiliary antioxidant.
10. The preparation method of the low-temperature hot-melt pressure-sensitive adhesive is characterized by comprising the following steps of:
(1) heating the reaction kettle, adding the plasticizer I and the antioxidant in a formula amount into the reaction kettle, heating while stirring, setting the rotating speed at 30-40rpm, controlling the oil temperature at 165-170 ℃, controlling the material temperature at 140-150 ℃, closing the reaction kettle to wait for heating, vacuumizing, and controlling the reaction pressure to be less than or equal to-0.08 MPa;
(2) when the material temperature reaches 140-150 ℃, closing the vacuum, opening the reaction kettle, adding the first thermoplastic elastomer and the second thermoplastic elastomer into the reaction kettle, heating to 145-150 ℃, keeping the temperature, vacuumizing and stirring, opening the reaction kettle after 1 hour to check the melting condition of the thermoplastic elastomers, and if the thermoplastic elastomers are not melted, continuously vacuumizing, heating and stirring until the thermoplastic elastomers are completely melted;
(3) slowly adding the tackifying resin I and the tackifying resin II into the reaction kettle after the thermoplastic elastomer is completely melted, vacuumizing and stirring at 145-150 ℃, continuously adding the plasticizer II and the plasticizer III into the reaction kettle after 20min, stirring all the raw materials uniformly after 40min to obtain a semi-finished hot melt adhesive product, and taking the semi-finished hot melt adhesive product out of the reaction kettle and packaging to obtain a finished hot melt adhesive product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685018.5A CN111690353A (en) | 2020-07-16 | 2020-07-16 | Low-temperature hot-melt pressure-sensitive adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685018.5A CN111690353A (en) | 2020-07-16 | 2020-07-16 | Low-temperature hot-melt pressure-sensitive adhesive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111690353A true CN111690353A (en) | 2020-09-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355037A (en) * | 2021-06-30 | 2021-09-07 | 佛山南宝高盛高新材料有限公司 | High-wet-strength hot melt adhesive for glass containers and preparation method thereof |
| CN113401520A (en) * | 2021-04-06 | 2021-09-17 | 巢进化学(上海)有限公司 | Application of PSA (pressure swing adsorption) in refrigerated container |
| CN114381226A (en) * | 2021-12-28 | 2022-04-22 | 佛山南宝高盛高新材料有限公司 | Hot melt adhesive for decoration and pasting and preparation method thereof |
| CN114869864A (en) * | 2022-05-10 | 2022-08-09 | 黄山市信德成胶业有限公司 | Thermoplastic styrene-butadiene rubber system plaster matrix adhesive |
| CN117343603A (en) * | 2023-10-11 | 2024-01-05 | 科顺民用建材有限公司 | Water-based interface agent, preparation method thereof and waterproof layer material |
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2020
- 2020-07-16 CN CN202010685018.5A patent/CN111690353A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401520A (en) * | 2021-04-06 | 2021-09-17 | 巢进化学(上海)有限公司 | Application of PSA (pressure swing adsorption) in refrigerated container |
| CN113401520B (en) * | 2021-04-06 | 2022-07-26 | 巢进化学(上海)有限公司 | Application of PSA in refrigerated container |
| CN113355037A (en) * | 2021-06-30 | 2021-09-07 | 佛山南宝高盛高新材料有限公司 | High-wet-strength hot melt adhesive for glass containers and preparation method thereof |
| CN114381226A (en) * | 2021-12-28 | 2022-04-22 | 佛山南宝高盛高新材料有限公司 | Hot melt adhesive for decoration and pasting and preparation method thereof |
| CN114381226B (en) * | 2021-12-28 | 2023-11-03 | 佛山南宝高盛高新材料有限公司 | Hot melt adhesive for decoration adhesion and preparation method thereof |
| CN114869864A (en) * | 2022-05-10 | 2022-08-09 | 黄山市信德成胶业有限公司 | Thermoplastic styrene-butadiene rubber system plaster matrix adhesive |
| CN117343603A (en) * | 2023-10-11 | 2024-01-05 | 科顺民用建材有限公司 | Water-based interface agent, preparation method thereof and waterproof layer material |
| CN117343603B (en) * | 2023-10-11 | 2024-04-26 | 科顺民用建材有限公司 | Water-based interface agent, preparation method thereof and waterproof layer material |
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