CN111534266A - Two-component polyurethane foaming adhesive - Google Patents
Two-component polyurethane foaming adhesive Download PDFInfo
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- CN111534266A CN111534266A CN202010427836.5A CN202010427836A CN111534266A CN 111534266 A CN111534266 A CN 111534266A CN 202010427836 A CN202010427836 A CN 202010427836A CN 111534266 A CN111534266 A CN 111534266A
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- component
- parts
- heavy calcium
- polyurethane foam
- component polyurethane
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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
- C09J175/08—Polyurethanes from polyethers
-
- 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
- C08G18/2805—Compounds having only one group containing active hydrogen
- C08G18/2815—Monohydroxy compounds
- C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
-
- 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
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers 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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C09J11/04—Non-macromolecular additives inorganic
-
- 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
- C08G2101/00—Manufacture of cellular products
-
- 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
- C08G2170/00—Compositions for adhesives
- C08G2170/60—Compositions for foaming; Foamed or intumescent adhesives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a two-component polyurethane foaming adhesive which comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 20-60 parts of polyether; 1-6 parts of catalyst; 40-60 parts of mixed filler; 15-20 parts of superfine heavy calcium carbonate; the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight: 60-80 parts of polyisocyanate; 0.5 to 1.4 portions of modifier. The invention greatly reduces the cost of raw materials by adopting the mixed filler of 400 meshes of heavy calcium and 800 meshes of heavy calcium; through adding superfine coarse whiting, superfine coarse whiting adopts 1250 mesh coarse whiting, has played and has adjusted the inside tension of post-mixing expanded polystyrene, prevents filler layering, sunken effect, and then has increased the consistency of expanded polystyrene, and the flow of effectual reduction expanded polystyrene prevents to overflow to glue in the use, because the consistency is big, has also significantly reduced the glue permeation, can reduce the rubber coating volume, and corresponding the cost is reduced, and then has satisfied the market demand.
Description
Technical Field
The invention relates to the technical field of foaming glue, in particular to double-component polyurethane foaming glue.
Background
Urethane groups and isocyanate groups in the molecular structure of polyurethane, and polar groups such as carbamido groups and condensed urea generated by condensation polymerization and chain extension under certain conditions can form covalent bonds, hydrogen bonds, metal complexes and other chemical bonds with larger bond energy with materials containing active hydrogen and metal oxide, so that the polyurethane has excellent chemical bonding force with materials such as foam plastics, wood, leather, fabrics, paper, ceramics, metal, glass, rubber and the like. The performances of the polyurethane foaming adhesive such as adhesion, toughness, temperature resistance and the like can be adjusted in a large range, and the polyurethane foaming adhesive has the characteristics of low temperature resistance, fatigue resistance, wear resistance and the like, so that the polyurethane foaming adhesive can be rapidly developed, can be widely used in the fields of shoemaking, packaging, wood processing, automobiles, light spinning, electromechanics, aerospace and the like, and can be used as a structural foaming adhesive to play the roles of adhesion, sealing and buffering. The bicomponent polyurethane foaming adhesive is cured at normal temperature, has no solvent pollution and is especially widely applied.
However, the two-component polyurethane foam adhesive used at the present stage has the disadvantages of high raw material cost, low consistency of the adhesive, easy flowing, adhesive overflow and adhesive permeation in the using process, and market demand cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a two-component polyurethane foaming adhesive.
In order to achieve the purpose, the invention adopts the following technical scheme:
a two-component polyurethane foaming adhesive is characterized by comprising a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
60-80 parts of polyisocyanate;
0.5 to 1.4 portions of modifier.
Preferably, the weight ratio of the component A to the component B is in the range of 20:3 to 20: 7.
Preferably, the weight ratio of the component A to the component B is 4: 1.
Preferably, the modifier is any one of polyoxypropylene glycol, polytetrahydrofuran ether glycol, tetrahydrofuran-ethylene oxide copolyether glycol and polyethylene glycol monomethyl ether.
Preferably, the catalyst is one or more of a tertiary amine catalyst and an organometallic catalyst.
Preferably, the preparation method of the component B modified polyisocyanate comprises the following steps: heating the modifier to 125-140 ℃, dehydrating in vacuum for 1-2h, cooling to 90-96 ℃, adding polyisocyanate, and reacting for 2-2.6h to obtain the modified polyisocyanate.
Preferably, the viscosity of the polyether is 550-12000mPa.s, and the number average molecular weight of the polyether is 2000-6000.
Preferably, 1250-mesh heavy calcium is adopted as the superfine heavy calcium.
Preferably, the mixed filler is a mixture of 400-mesh heavy calcium and 800-mesh heavy calcium, and the weight ratio of the 400-mesh heavy calcium to the 800-mesh heavy calcium is 3: 4.
The invention has the beneficial effects that: the invention provides a two-component polyurethane foaming adhesive, which greatly reduces the raw material cost by adopting a mixed filler of 400-mesh coarse whiting and 800-mesh coarse whiting; through adding superfine coarse whiting, superfine coarse whiting adopts 1250 mesh coarse whiting, has played and has adjusted the inside tension of post-mixing expanded polystyrene, prevents filler layering, sunken effect, and then has increased the consistency of expanded polystyrene, and the flow of effectual reduction expanded polystyrene prevents to overflow to glue in the use, because the consistency is big, has also significantly reduced the glue permeation, can reduce the rubber coating volume, and corresponding the cost is reduced, and then has satisfied the market demand.
Detailed Description
The invention is further illustrated by the following examples:
example 1
A two-component polyurethane foaming adhesive comprises a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
a polyisocyanate 60;
polyoxypropylene diol 0.5.
The weight ratio of the component A to the component B is 20: 3.
The preparation method of the component B modified polyisocyanate comprises the following steps: heating polyoxypropylene glycol to 125 ℃, dehydrating in vacuum for 2h, cooling to 90 ℃, adding polyisocyanate, and reacting for 2.6h to obtain the modified polyisocyanate.
The viscosity of the polyether is 550mPa.s, and the number average molecular weight of the polyether is 2000.
The mixed filler is a mixture of 400-mesh heavy calcium and 800-mesh heavy calcium, and the weight ratio of the 400-mesh heavy calcium to the 800-mesh heavy calcium is 3: 4.
Example 2
A two-component polyurethane foaming adhesive comprises a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
a polyisocyanate 80;
polytetrahydrofuran ether glycol 1.4.
The weight ratio of the component A to the component B is 20: 7.
The preparation method of the component B modified polyisocyanate comprises the following steps: heating polytetrahydrofuran ether glycol to 140 ℃, dehydrating in vacuum for 1h, cooling to 96 ℃, adding polyisocyanate, and reacting for 2h to obtain the modified polyisocyanate.
The viscosity of the polyether is 12000mPa.s, and the number average molecular weight of the polyether is 6000.
The mixed filler is a mixture of 400-mesh heavy calcium and 800-mesh heavy calcium, and the weight ratio of the 400-mesh heavy calcium to the 800-mesh heavy calcium is 3: 4.
Example 3
A two-component polyurethane foaming adhesive comprises a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
a polyisocyanate 70;
tetrahydrofuran-ethylene oxide copolyether glycol 0.9.
The weight ratio of the component A to the component B is 4: 1.
The preparation method of the component B modified polyisocyanate comprises the following steps: heating tetrahydrofuran-ethylene oxide copolyether glycol to 135 ℃, dehydrating in vacuum for 1.5h, cooling to 94 ℃, adding polyisocyanate, and reacting for 2.3h to obtain the modified polyisocyanate.
The viscosity of the polyether is 2000mPa.s, and the number average molecular weight of the polyether is 4000.
The mixed filler is a mixture of 400-mesh heavy calcium and 800-mesh heavy calcium, and the weight ratio of the 400-mesh heavy calcium to the 800-mesh heavy calcium is 3: 4.
Example 4
A two-component polyurethane foaming adhesive comprises a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
a polyisocyanate 68;
polyethylene glycol monomethyl ether 1.2.
The weight ratio of the component A to the component B is 4: 1.
The preparation method of the component B modified polyisocyanate comprises the following steps: heating polyethylene glycol monomethyl ether to 135 ℃, dehydrating in vacuum for 1.5h, cooling to 95 ℃, adding polyisocyanate, and reacting for 2h to obtain the modified polyisocyanate.
The viscosity of the polyether is 10000mPa.s, and the number average molecular weight of the polyether is 5000.
The mixed filler is a mixture of 400-mesh heavy calcium and 800-mesh heavy calcium, and the weight ratio of the 400-mesh heavy calcium to the 800-mesh heavy calcium is 3: 4.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various modifications, which may be made by the methods and technical solutions of the invention, or may be applied to other applications without modification.
Claims (9)
1. A two-component polyurethane foaming adhesive is characterized by comprising a component A and a component B,
the component A comprises the following components in parts by weight:
the component B is modified polyisocyanate, and the modified polyisocyanate comprises the following raw materials in parts by weight:
60-80 parts of polyisocyanate;
0.5 to 1.4 portions of modifier.
2. The two-component polyurethane foam according to claim 1, wherein the weight ratio of the component A to the component B is in the range of 20:3 to 20: 7.
3. The two-component polyurethane foam according to claim 2, wherein the weight ratio of the component A to the component B is 4: 1.
4. The two-component polyurethane foam according to claim 1, wherein the modifier is any one of polyoxypropylene glycol, polytetrahydrofuran ether glycol, tetrahydrofuran-ethylene oxide copolyether glycol and polyethylene glycol monomethyl ether.
5. The two-component polyurethane foam according to claim 1, wherein the catalyst is one or more of a tertiary amine catalyst and an organic metal catalyst.
6. The two-component polyurethane foam according to claim 1, wherein the preparation method of the B-component modified polyisocyanate comprises the following steps: heating the modifier to 125-140 ℃, dehydrating in vacuum for 1-2h, cooling to 90-96 ℃, adding polyisocyanate, and reacting for 2-2.6h to obtain the modified polyisocyanate.
7. The two-component polyurethane foam according to claim 1, wherein the viscosity of the polyether is 550-12000mPa.s, and the number average molecular weight of the polyether is 2000-6000.
8. The two-component polyurethane foam according to claim 1, wherein 1250 mesh coarse whiting is adopted as the ultra-fine coarse whiting.
9. The two-component polyurethane foam according to claim 1, wherein the mixed filler is a mixture of 400 mesh heavy calcium carbonate and 800 mesh heavy calcium carbonate, and the weight ratio of the 400 mesh heavy calcium carbonate to the 800 mesh heavy calcium carbonate is 3: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427836.5A CN111534266A (en) | 2020-05-20 | 2020-05-20 | Two-component polyurethane foaming adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427836.5A CN111534266A (en) | 2020-05-20 | 2020-05-20 | Two-component polyurethane foaming adhesive |
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| Publication Number | Publication Date |
|---|---|
| CN111534266A true CN111534266A (en) | 2020-08-14 |
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|---|---|---|---|
| CN202010427836.5A Pending CN111534266A (en) | 2020-05-20 | 2020-05-20 | Two-component polyurethane foaming adhesive |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634784A (en) * | 2016-11-09 | 2017-05-10 | 万华化学集团股份有限公司 | A two-component polyurethane foaming adhesive |
| CN106753178A (en) * | 2016-12-28 | 2017-05-31 | 成都硅宝科技股份有限公司 | Dual-component polyurethane fluid sealant and preparation method thereof |
| CN109852327A (en) * | 2019-03-15 | 2019-06-07 | 杭州之江新材料有限公司 | A kind of two component polyurethane windshield glue and preparation method thereof with quick setting capabilities |
-
2020
- 2020-05-20 CN CN202010427836.5A patent/CN111534266A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634784A (en) * | 2016-11-09 | 2017-05-10 | 万华化学集团股份有限公司 | A two-component polyurethane foaming adhesive |
| CN106753178A (en) * | 2016-12-28 | 2017-05-31 | 成都硅宝科技股份有限公司 | Dual-component polyurethane fluid sealant and preparation method thereof |
| CN109852327A (en) * | 2019-03-15 | 2019-06-07 | 杭州之江新材料有限公司 | A kind of two component polyurethane windshield glue and preparation method thereof with quick setting capabilities |
Non-Patent Citations (2)
| Title |
|---|
| 杨华明等: "《尾矿废渣的材料化加工与应用》", 30 September 2017, 冶金工业出版社 * |
| 橡胶工业原材料与装备简明手册编审委员会: "《橡胶工业原材料与装备简明手册》", 30 November 2016, 北京理工大学出版社 * |
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Application publication date: 20200814 |