CN111909652A - Special hot melt adhesive for composite floor mat and preparation method thereof - Google Patents
Special hot melt adhesive for composite floor mat and preparation method thereof Download PDFInfo
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- CN111909652A CN111909652A CN202010688255.7A CN202010688255A CN111909652A CN 111909652 A CN111909652 A CN 111909652A CN 202010688255 A CN202010688255 A CN 202010688255A CN 111909652 A CN111909652 A CN 111909652A
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- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/302—Water
- C08G18/307—Atmospheric humidity
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- 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
Abstract
The invention provides a special hot melt adhesive for a composite floor mat, which at least comprises the following preparation raw materials in parts by weight: 20-70 parts of polyester polyol, 0.1-5 parts of modifier, 0.1-5 parts of tackifying resin, 0.1-0.5 part of catalyst, 0.1-2 parts of silane coupling agent and 0.05-1 part of antioxidant.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a special hot melt adhesive for a composite floor mat and a preparation method thereof.
Background
A moisture-curable polyurethane hot melt adhesive, PUR for short, is solid at normal temperature, contains no solvent plasticizer, is heated to be liquid when used, is immediately applied to the surface of an adherend, is attached to another adherend, and is subjected to chain extension into a high molecular compound through the reaction of isocyanate and moisture on the surface of the adherend or moisture in the air after the adhesive is cooled and cured, so that the adhesive force is generated. Compared with other hot-melt adhesives, the reactive polyurethane hot-melt adhesives (PU-RHMAs) have the following advantages: low application temperature, high thermal stability (moisture crosslinking curing), and good adhesion to various substrates (e.g., wood, paper, plastic, metal, etc.).
With the development of industrial automation, the production rhythm of a production line is accelerated, the bonding surfaces can be bonded firmly and quickly, the gluing is smooth and quick, the frame design of the next product is narrower and narrower, and higher requirements are provided for quick drying and bonding of the adhesive, so that products with high initial strength such as a high-strength double-sided adhesive tape are invented. However, the high-strength double-sided adhesive tape needs manual bonding, is low in efficiency and poor in final strength, and cannot meet the production rhythm of an automatic assembly line.
In order to improve the initial adhesion of the hot melt adhesive, tackifying resin is added to accelerate the condensation of the hot melt adhesive when the hot melt adhesive is cooled, but the system is very brittle, the toughness is poor, and the heat resistance is poor.
Therefore, in order to solve the above problems, the present invention provides a hot melt adhesive special for a composite floor mat and a preparation method thereof, wherein the hot melt adhesive special for a composite floor mat has excellent initial adhesion, strong toughness and good heat resistance.
Disclosure of Invention
The invention aims to provide a special hot melt adhesive for a composite floor mat and a preparation method thereof.
The invention provides a special hot melt adhesive for a composite floor mat, which at least comprises the following preparation raw materials in parts by weight: 20-70 parts of polyester polyol, 0.1-5 parts of modifier, 0.1-5 parts of tackifying resin, 0.1-0.5 part of catalyst, 0.1-2 parts of silane coupling agent and 0.05-1 part of antioxidant.
Preferably, the preparation raw materials at least comprise the following components in parts by weight: 30-60 parts of polyester polyol, 0.5-3 parts of modifier, 0.5-3 parts of tackifying resin, 0.1-0.5 part of catalyst, 0.3-1.5 parts of silane coupling agent and 0.1-1 part of antioxidant.
In one embodiment, the polyester polyol is selected from one or more of poly 1,6 hexanediol adipate diol, poly diethylene glycol adipate aromatic acid diol, poly neopentyl glycol adipate diol, and poly diethylene glycol adipate neopentyl glycol ester;
preferably, the polyester polyol is selected from the group consisting of 1,6 hexanediol adipate diol (CAS:25214-14-6), neopentyl glycol adipate diol (CAS: 27925-07-1).
In the present invention, the weight ratio of the polyadipic acid-1, 6-hexanediol ester diol to the polyadipic acid-neopentyl glycol ester diol is 1: (0.1-1); preferably, the weight ratio of the poly 1,6 hexanediol adipate diol to the poly neopentyl glycol adipate diol is 1: 0.6.
in one embodiment, the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate (CAS: 16613-04-0).
In one embodiment, the tackifying resin is selected from one or more of acrylic resins, modified rosin resins, rosin pentaerythritol esters, biphenyl anhydride modified C5 petroleum resins;
preferably, the tackifying resin is selected from acrylic resin and biphenyl anhydride modified C5 petroleum resin.
In one embodiment, the weight ratio of the acrylic resin to the biphenyl anhydride modified C5 petroleum resin is 1: (0.1-1);
preferably, the weight ratio of the acrylic resin to the biphenyl anhydride modified C5 petroleum resin is 1: 0.3.
the acrylic resin described in the present invention is available from wangxin coatings limited, Shandong.
The preparation method of the biphenyl anhydride modified C5 petroleum resin comprises the following steps:
mixing the following raw materials in a weight ratio of 12: 1, adding the C5 petroleum resin and the biphenyl anhydride into a reaction kettle, and reacting for 2 hours at the temperature of 220 ℃ to obtain the biphenyl anhydride (CAS number: 6050-13-1) modified C5 petroleum resin.
In one embodiment, the catalyst is selected from one or more of dibutyltin dilaurate, stannous octoate, tetramethylethylenediamine, triethylenediamine, bis-morpholinodiethyl ether, dimorpholintriethyl ether;
preferably, the catalyst is selected from dibutyltin dilaurate.
In one embodiment, the silane coupling agent is selected from one or more of KH-560, KH-570, A-172;
preferably, the silane coupling agent is selected from KH-560.
In one embodiment, the antioxidant is selected from one or more of antioxidant 1010, antioxidant 1076, antioxidant 245, antioxidant 1098, antioxidant 1330, antioxidant 3114;
preferably, the antioxidant is selected from antioxidants 1076.
The raw materials for preparing the hot melt adhesive special for the composite floor mat also comprise 0.05-1 part of chain extender, wherein the chain extender is selected from 1, 4-butanediol.
The invention also provides a preparation method of the special hot melt adhesive for the composite floor mat, which comprises the following steps:
1) adding polyester polyol, tackifying resin and an antioxidant into a reactor according to the weight parts, stirring, uniformly mixing, introducing nitrogen, heating to 110-120 ℃, and carrying out heat preservation reaction for 1-3 h;
2) adding a catalyst, and carrying out heat preservation reaction for 1-2h at the temperature of 80-100 ℃;
3) adding a modifier and a silane coupling agent, and carrying out heat preservation reaction for 0.5-1h at the temperature of 80-100 ℃;
4) adding a chain extender and an initiator, continuing to react, cooling to room temperature after the reaction is finished, discharging, and packaging and storing under vacuum or nitrogen protection.
According to the invention, the acrylic resin and the biphenyl anhydride modified C5 petroleum resin are added to improve the adhesive property of the hot melt adhesive, the molecular weight of the resin can be freely adjusted through stepwise polymerization, the stability and compatibility of the system are improved, and the initial viscosity of the polyurethane hot melt adhesive is also improved.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
Example 1
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 2 parts of tackifying resin, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; the tackifying resin is selected from acrylic resin and biphenyl anhydride modified C5 petroleum resin, and the weight ratio of the acrylic resin to the biphenyl anhydride modified C5 petroleum resin is 1: 0.3; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat comprises the following steps:
1) adding polyester polyol, tackifying resin and an antioxidant into a reactor according to the weight parts, stirring, uniformly mixing, introducing nitrogen, heating to 110-120 ℃, and carrying out heat preservation reaction for 2 hours;
2) adding a catalyst, and carrying out heat preservation reaction for 1h at the temperature of 80-90 ℃;
3) adding a modifier and a silane coupling agent, and carrying out heat preservation reaction for 0.5h at the temperature of 80-90 ℃;
4) adding a chain extender and an initiator, continuing to react, cooling to room temperature after the reaction is finished, discharging, and packaging and storing under vacuum or nitrogen protection.
Example 2
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 2 parts of tackifying resin, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; the tackifying resin is selected from acrylic resin and biphenyl anhydride modified C5 petroleum resin, and the weight ratio of the acrylic resin to the biphenyl anhydride modified C5 petroleum resin is 1: 0.1; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat is the same as that of the embodiment 1.
Example 3
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 2 parts of tackifying resin, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; (ii) a The tackifying resin is selected from acrylic resin and biphenyl anhydride modified C5 petroleum resin, and the weight ratio of the acrylic resin to the biphenyl anhydride modified C5 petroleum resin is 1: 1; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat is the same as that of the embodiment 1.
Example 4
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 2 parts of tackifying resin, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; the tackifying resin is selected from acrylic resins; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat is the same as that of the embodiment 1.
Example 5
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 2 parts of tackifying resin, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; the tackifying resin is selected from biphenyl anhydride modified C5 petroleum resin; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat is the same as that of the embodiment 1.
Example 6
The preparation raw materials at least comprise the following components in parts by weight: 45 parts of polyester polyol, 2 parts of modifier, 0.2 part of catalyst, 0.7 part of silane coupling agent, 0.1 part of chain extender and 0.2 part of antioxidant;
the polyester polyol is selected from the group consisting of 1,6 hexanediol polyadipate diol, neopentyl glycol polyadipate diol, and a weight ratio of 1,6 hexanediol polyadipate diol to neopentyl glycol polyadipate diol of 1: 0.6; the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate; the catalyst is selected from dibutyltin dilaurate; the antioxidant is selected from antioxidant 1076; the chain extender is selected from 1, 4-butanediol.
The preparation method of the hot melt adhesive special for the composite floor mat is the same as that of the embodiment 1 (without tackifying resin).
Performance testing
1. Bonding strength:
2 strips of the hot melt adhesive tape with the width of 1mm, the length of more than 25mm and the thickness of 0.3mm are uniformly coated on a glass plate with the specification of 25mm width, 100mm length and 5mm thickness at the positions 6mm away from two edges along the length direction of the glass plate. The thickness of the adhesive tape was controlled by using a 0.15mm diameter steel wire, two glass plates were immediately bonded together by a second glass plate of the same specification in a direction perpendicular to the first glass plate, and the bonded joint was pressed with 1.5 kg force for 15 seconds, irradiated with a 1000W high pressure mercury lamp for 10 seconds, and then placed in a constant temperature and humidity chamber to test the bonding strength after 15min and 72h, respectively, as the initial bonding strength and the final bonding strength of the sample.
2. Tensile strength:
the gum sample was prepared in accordance with ASTM D638, and was formed into a sheet-like shape having a width of 6mm and a thickness of 0.5mm, and a dumbbell-like shape. The sample is placed in a constant temperature and humidity box (humidity is 60 percent and temperature is 25 ℃) for 72 hours, and then the tensile strength and the elongation at break of the rubber sample are tested according to the method of the ASTM D638 standard, the tensile speed is 100mm/min, the test temperature is 25 ℃, and the sum of the obtained tensile strength is TS 0.
3. And (3) weather resistance test: the gum sample was prepared in accordance with ASTM D638, and was formed into a sheet-like shape having a width of 6mm and a thickness of 0.5mm, and a dumbbell-like shape. Placing a sample in a constant temperature and humidity box (with the humidity of 60 percent and the temperature of 25 ℃) for 72 hours, then placing the sample in a high-low temperature damp-heat aging box for weather resistance test for 240 hours, wherein the test process is automatically carried out by the aging box, and the specific steps comprise firstly testing for 10 hours under the conditions of the temperature of 80 ℃ and the humidity of 80 percent, then testing for 10 hours under the conditions of-40 ℃ and the humidity of 80 percent, and then alternately carrying out the test until the total test time is 240 hours. After the test is finished, the tensile strength test is carried out, the tensile speed is 100mm/min, and the test temperature is 25 ℃. The resulting tensile strength was TS1, and the weatherability of each sample was calculated from the tensile strength change rate (. alpha.) according to the following formula:
α=（TS1- TS0）/ TS0 *100%
table 1 results of performance testing
The experimental data show that the special hot melt adhesive for the composite floor mat provided by the invention has excellent initial adhesion, strong toughness and good heat resistance.
The foregoing examples are merely illustrative and are provided to illustrate some of the features of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. And that advances in science and technology will result in possible equivalents or sub-substitutes not currently contemplated for reasons of inaccuracy in language representation, and such changes should also be construed where possible to be covered by the appended claims.
Claims (10)
1. The special hot melt adhesive for the composite floor mat is characterized by at least comprising the following preparation raw materials in parts by weight: 20-70 parts of polyester polyol, 0.1-5 parts of modifier, 0.1-5 parts of tackifying resin, 0.1-0.5 part of catalyst, 0.1-2 parts of silane coupling agent and 0.05-1 part of antioxidant.
2. The hot melt adhesive special for composite floor mats according to claim 1, wherein the polyester polyol is selected from one or more of poly adipic acid-1, 6 hexanediol glycol, poly adipic acid-aromatic acid-diethylene glycol-ethylene glycol, poly adipic acid-neopentyl glycol ester glycol, and poly adipic acid-diethylene glycol-neopentyl glycol ester.
3. The hot melt adhesive special for composite floor mats according to claim 2, wherein the polyester polyol is selected from the group consisting of poly-1, 6 hexanediol adipate diol, and poly-neopentyl glycol adipate diol.
4. The special hot melt adhesive for composite floor mats according to claim 1, wherein the modifier is 2- (4-benzoyl-3-hydroxyphenoxy) ethyl methacrylate.
5. The special hot melt adhesive for the composite floor mat as claimed in claim 1, wherein the tackifying resin is selected from one or more of acrylic resin, modified rosin resin, rosin pentaerythritol ester, and biphenyl anhydride modified C5 petroleum resin.
6. The special hot melt adhesive for the composite floor mat as claimed in claim 5, wherein the tackifying resin is selected from acrylic resin and biphenyl anhydride modified C5 petroleum resin.
7. The hot melt adhesive special for composite floor mats according to claim 1, wherein the catalyst is one or more selected from dibutyltin dilaurate, stannous octoate, tetramethylethylenediamine, triethylenediamine, dimorpholinodiethylether and dimorpholinodiethylether.
8. The special hot melt adhesive for composite floor mats according to claim 1, wherein the silane coupling agent is selected from one or more of KH-560, KH-570 and A-172.
9. The hot melt adhesive special for composite floor mats according to claim 1, wherein the antioxidant is selected from one or more of antioxidant 1010, antioxidant 1076, antioxidant 245, antioxidant 1098, antioxidant 1330 and antioxidant 3114.
10. The preparation method of the special hot melt adhesive for the composite floor mat according to any one of the claims 1 to 9, which is characterized by comprising the following steps:
1) adding polyester polyol, tackifying resin and an antioxidant into a reactor according to the weight parts, stirring, uniformly mixing, introducing nitrogen, heating to 110-120 ℃, and carrying out heat preservation reaction for 1-3 h;
2) adding a catalyst, and carrying out heat preservation reaction for 1-2h at the temperature of 80-100 ℃;
3) adding a modifier and a silane coupling agent, and carrying out heat preservation reaction for 0.5-1h at the temperature of 80-100 ℃;
4) adding an initiator, continuing to react, cooling to room temperature after the reaction is finished, discharging, and packaging and storing under vacuum or nitrogen protection.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112712945A (en) * | 2021-01-04 | 2021-04-27 | 深圳市顺博绝缘材料制造有限公司 | Silicon resin glass fiber sleeve and processing method |
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