CN112795337B - Hot melt adhesive for hollow glass warm edge strips and preparation method thereof - Google Patents
Hot melt adhesive for hollow glass warm edge strips and preparation method thereof Download PDFInfo
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- CN112795337B CN112795337B CN202110063907.2A CN202110063907A CN112795337B CN 112795337 B CN112795337 B CN 112795337B CN 202110063907 A CN202110063907 A CN 202110063907A CN 112795337 B CN112795337 B CN 112795337B
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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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C09J123/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
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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
- 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
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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
- 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
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- 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
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- 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
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- 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
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Abstract
The invention provides a hot melt adhesive for a hollow glass warm edge strip, which is prepared from the following raw materials: 1-10 parts by weight of butyl rubber; 25-50 parts by weight of a polyisobutylene mixture; 5-25 parts by weight of tackifying resin; 5-15 parts by weight of a polymer; 0.01-0.1 part by weight of an auxiliary crosslinking agent; 0.1-5 parts by weight of a silane coupling agent; 0.1-1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-5 parts by weight of a water absorbent; 5-25 parts of a thixotropic agent; the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer. Compared with the prior art, the hot melt adhesive for the hollow glass warm edge strip provided by the invention adopts specific content components, so that the integral better interaction is realized, and the product has excellent high-temperature adhesion with glass and excellent adhesion to silicone adhesive.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a hot melt adhesive for a hollow glass warm edge strip and a preparation method thereof.
Background
The hollow glass is also called as heat insulation glass, and is a special glass formed by two or more pieces of flat glass which are spaced from each other at a certain distance and sealed at the periphery so that a dry gas space is formed between the glass. The hollow glass has the characteristics of heat insulation, heat preservation, sound insulation, dewing prevention and the like, and has wide application in the aspects of building decoration, energy-saving vehicles and refrigeration equipment.
The edge sealing system of the hollow glass has various types, and mainly comprises a spacing bar (frame), sealant and a molecular sieve. The spacer bars are arranged between the two layers of glass and play a role of separating the glass plates, and the peripheries of the two layers of glass are sealed by sealant so that the glass is bonded together and gas in the layers is prevented from overflowing. When two fluids with different temperatures are arranged on two sides of the hollow glass, the heat quantity passing through the middle part and the edge part of the hollow glass is different; the heat is conducted and radiated in a mode of passing through the glass plate, and the thermal resistances are the same; the spaced gases primarily conduct heat and may also conduct convective heat transfer. The heat insulation capability of the hollow glass mainly comes from a sealed air layer, the heat conductivity coefficient of the air is 0.026W/m.K at the temperature of 20 ℃, and the heat conductivity coefficient of a common transparent glass plate is 0.76W/m.K, and the ratio of l: 29. in the air layer sealed by the hollow glass, the heat convection accounts for a smaller part and is basically in a heat conduction mode, so that the heat resistance of the hollow glass can be improved to a greater extent. At the edge of the hollow glass, it is the conductive heat transfer between the multiple flat walls, due to the close contact of the sealing system with the glass sheets. The heat conductivity coefficient of the spacer bar material has great influence on the thermal resistance, and the initially used aluminum spacer bar has large heat conductivity coefficient and small thermal resistance. For the hollow section, the air layer thickness is close to the spacer dimensions, so their thermal resistance ratio is also similar to the ratio of their thermal conductivity. The thermal conductivity of pure aluminum is 202W/mK, and the thermal conductivity of aluminum alloy is generally 130-150W/mK, so that the thermal resistance of the edge part is far smaller than that of the middle part. When different spacers are used, the temperature of the edge part of the hollow glass can also change, and in winter, the thermal resistance of the peripheral part of the hollow glass of the building is small, and the temperature is obviously reduced. Because the indoor has certain humidity, the moisture in the air is condensed when contacting the glass plate with lower temperature, and the phenomenon of condensation and frosting is generated at the edge of the hollow glass, which not only influences the appearance, but also damages the sealing material.
In order to improve the phenomena that the thermal resistance of the peripheral part of the hollow glass is too small and the hollow glass is easy to condense and frost, research directions of scientific researchers are focused on the thermal properties of the material and the shape of the spacing bars. The result shows that the material with lower heat conductivity coefficient is adopted to replace the traditional aluminum spacing bar, the peripheral temperature of the inner layer glass can be improved, and the dewing at the edge of the inner layer glass is avoided. Therefore, various materials having a small thermal conductivity and spacers (warm edge bars) having various shapes have been developed in large quantities. For example, Chinese patent with publication number CN111690117A discloses a hollow glass warm edge strip and a preparation method and application thereof, wherein the warm edge strip is made of bi-component polyurethane and has a low heat conductivity coefficient; however, the adhesive property to glass is poor, and butyl rubber is required to be matched and applied to an insulating glass system. For another example, chinese patent publication No. CN110437771A discloses a hot melt adhesive for wrapping hollow glass warm edge strips and a manufacturing method thereof, wherein the hot melt adhesive has good bonding effect on PP, PVC, and stainless steel; but the adhesive effect on glass and silicone adhesive is poor, and the adhesive is mainly used for coating the warm edge strip, so that the heat conductivity coefficient of the warm edge strip is reduced. The Chinese patent with the publication number of CN102911625A discloses a thermoplastic spacing bar and a preparation method thereof, and the thermoplastic spacing bar has good chemical bonding property with glass at normal temperature; however, the high-temperature (80 ℃) bonding performance is poor, and the thermoplastic spacing bar has poor bonding performance to the silicone adhesive, so that the thermoplastic spacing bar is difficult to be used for the hollow glass warm edge bar.
In summary, the butyl hot melt adhesives for the existing hollow glass systems are non-reactive hot melt adhesives, and have poor adhesion to glass at high temperature, and poor adhesion to silicone adhesive.
Disclosure of Invention
In view of the above, the present invention aims to provide a hot melt adhesive for a hollow glass warm edge strip and a preparation method thereof, wherein the hot melt adhesive for the hollow glass warm edge strip provided by the present invention has excellent high temperature adhesion with glass, and simultaneously has excellent adhesion with silicone adhesive.
The invention provides a hot melt adhesive for a hollow glass warm edge strip, which is prepared from the following raw materials:
1-10 parts by weight of butyl rubber;
25-50 parts by weight of a polyisobutylene mixture;
5-25 parts by weight of tackifying resin;
5-15 parts by weight of a polymer;
0.01-0.1 part by weight of an auxiliary crosslinking agent;
0.1-5 parts by weight of a silane coupling agent;
0.1-1 part by weight of a lubricant;
0.1-1 part by weight of an antioxidant;
15-50 parts by weight of a filler;
1-5 parts by weight of a water absorbent;
5-25 parts of a thixotropic agent;
the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer.
Preferably, the viscosity average molecular weight of the butyl rubber is 500000-3000000.
Preferably, the polyisobutylene mixture is selected from two or more of low molecular weight polyisobutylene, medium molecular weight polyisobutylene and high molecular weight polyisobutylene; the viscosity average molecular weight of the low molecular weight polyisobutylene is 400-30000, the molecular weight of the medium molecular weight polyisobutylene is 30000-100000, and the molecular weight of the high molecular weight polyisobutylene is 100000-2000000.
Preferably, the tackifying resin is selected from one or more of terpene resins, rosin resins, dammar resins, maleic anhydride modified petroleum resins, hydrogenated petroleum resins and coumarone resins.
Preferably, the auxiliary crosslinking agent is selected from one or more of dicumyl peroxide, benzoyl peroxide, bis-tert-butylperoxyisopropyl benzene and 2, 4-dichlorobenzoyl peroxide.
Preferably, the silane coupling agent has the general formula YSiX2Z; wherein Y is selected from vinyl or (meth) acryloyloxy, X is selected from-OCH3、-OC2H5or-OC3H7Z is selected from-H and-OCH3、-OC2H5、-OC3H7or-CH3。
Preferably, the lubricant is selected from one or more of fischer-tropsch wax C80, fischer-tropsch wax C100, oleamide and erucamide.
Preferably, the antioxidant comprises a primary antioxidant and a secondary antioxidant; the primary antioxidant is selected from one or more of RIANOX 1010, RIANOX 1076 and RIANOX 1790, and the secondary antioxidant is selected from one or more of RIANOX 168, RIANOX 626, RIANOX DSTP and RIANOX DLTP.
Preferably, the filler is selected from one or more of mica, talc, kaolin, silica and calcium carbonate; the water absorbent is selected from one or more of molecular sieve, calcium oxide, calcium chloride, magnesium sulfate, magnesium chloride, calcium sulfate and silica gel; the thixotropic agent is selected from white carbon black and/or carbon black.
The invention provides a preparation method of a hot melt adhesive for a hollow glass warm edge strip, which comprises the following steps:
adding butyl rubber, polyisobutylene mixture, polymer and lubricant into a kneading machine at the temperature of 150-180 ℃ for blending and kneading for 10-60 minutes, cooling to 130-150 ℃, adding a silane coupling agent for kneading and stirring for 4-25 minutes, adding an auxiliary crosslinking agent, heating to 170-190 ℃, kneading for 10-30 minutes, cooling to 150-180 ℃, sequentially adding tackifying resin, filler, water absorbent, antioxidant and thixotropic agent, and continuously kneading for 1-3 hours at the temperature of 150-180 ℃ under the vacuum degree of 0.08-0.1 MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The invention provides a hot melt adhesive for a hollow glass warm edge strip, which is prepared from the following raw materials: 1-10 parts by weight of butyl rubber; 25-50 parts by weight of a polyisobutylene mixture; 5-25 parts by weight of tackifying resin; 5-15 parts by weight of a polymer; 0.01-0.1 part by weight of an auxiliary crosslinking agent; 0.1-5 parts by weight of a silane coupling agent; 0.1-1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-5 parts by weight of a water absorbent; 5-25 parts of a thixotropic agent; the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer. Compared with the prior art, the hot melt adhesive for the hollow glass warm edge strip provided by the invention adopts specific content components, so that the integral better interaction is realized, and the product has excellent high-temperature adhesion with glass and excellent adhesion to silicone adhesive.
In addition, the preparation method provided by the invention has the advantages of simple process, easily-controlled conditions and wide application prospect.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hot melt adhesive for a hollow glass warm edge strip, which is prepared from the following raw materials:
1-10 parts by weight of butyl rubber;
25-50 parts by weight of a polyisobutylene mixture;
5-25 parts by weight of tackifying resin;
5-15 parts by weight of a polymer;
0.01-0.1 part by weight of an auxiliary crosslinking agent;
0.1-5 parts by weight of a silane coupling agent;
0.1-1 part by weight of a lubricant;
0.1-1 part by weight of an antioxidant;
15-50 parts by weight of a filler;
1-5 parts by weight of a water absorbent;
5-25 parts of a thixotropic agent;
the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer.
In the present invention, the hot melt adhesive for the hollow glass warm edge strip comprises butyl rubber, polyisobutylene mixture, tackifying resin, polymer, auxiliary crosslinking agent, silane coupling agent, lubricant, antioxidant, filler, water absorbent and thixotropic agent, and preferably consists of butyl rubber, polyisobutylene mixture, tackifying resin, polymer, auxiliary crosslinking agent, silane coupling agent, lubricant, antioxidant, filler, water absorbent and thixotropic agent.
The source of the butyl rubber is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used. In the invention, the viscosity average molecular weight of the butyl rubber is preferably 500000-3000000, and more preferably 1000000-1800000.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 1-10 parts by weight of butyl rubber, and preferably 2-9 parts by weight.
In the present invention, the polyisobutylene mixture is preferably two or more selected from the group consisting of low molecular weight polyisobutylene, medium molecular weight polyisobutylene, and high molecular weight polyisobutylene; the viscosity average molecular weight of the low molecular weight polyisobutylene is preferably 400-30000, and more preferably 680-2400; the molecular weight of the medium molecular weight polyisobutylene is preferably 30000-100000, and more preferably 60000-80000; the molecular weight of the high molecular weight polyisobutylene is preferably 100000-2000000, and more preferably 150000-300000. The source of the polyisobutylene is not particularly limited in the present invention, and commercially available products well known to those skilled in the art may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 25-50 parts by weight of polyisobutylene mixture, and preferably 29-35 parts by weight.
In the present invention, the tackifier resin is preferably one or more selected from the group consisting of terpene resins, rosin resins, dammar resins, maleic anhydride-modified petroleum resins, hydrogenated petroleum resins, and coumarone resins, and more preferably hydrogenated petroleum resins, rosin resins, terpene resins, or coumarone resins. The source of the tackifier resin in the present invention is not particularly limited, and commercially available products of the above terpene resins, rosin resins, dammar resins, maleic anhydride-modified petroleum resins, hydrogenated petroleum resins, and coumarone resins, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 5-25 parts by weight of tackifying resin, and preferably 7-20 parts by weight.
In the present invention, the polymer is selected from one or more of metallocene polyolefin, amorphous α -olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer, preferably metallocene polyolefin, amorphous α -olefin copolymer, styrene block copolymer or ethylene vinyl acetate copolymer. The source of the polymer is not particularly limited in the present invention, and commercially available products of the above-mentioned metallocene polyolefin, amorphous α -olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 5-15 parts by weight of polymer, preferably 6-13.5 parts by weight.
In the present invention, the co-crosslinking agent is preferably selected from one or more of dicumyl peroxide, benzoyl peroxide, bis-tert-butylperoxyisopropyl benzene and 2, 4-dichlorobenzoyl peroxide, and more preferably dicumyl peroxide, benzoyl peroxide, 2, 4-dichlorobenzoyl peroxide or bis-tert-butylperoxyisopropyl benzene. The source of the co-crosslinking agent is not particularly limited in the present invention, and commercially available products of the above-mentioned dicumyl peroxide, benzoyl peroxide, di-t-butylperoxyisopropyl benzene and 2, 4-dichlorobenzoyl peroxide, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warming edge strip comprises 0.01-0.1 part by weight of an auxiliary crosslinking agent, preferably 0.02-0.06 part by weight.
In the present invention, the general formula of the silane coupling agent is preferably YSiX2Z; wherein Y is a non-hydrolyzable group, preferably selected fromVinyl or (meth) acryloxy, X is a hydrolysable group, preferably selected from-OCH3、-OC2H5or-OC3H7Z is preferably selected from-H and-OCH3、-OC2H5、-OC3H7or-CH3. On this basis, in a preferred embodiment of the invention, the silane coupling agent is selected from vinyltrimethoxysilane, vinyltriethoxysilane, methylvinyldimethoxysilane, methacryloxypropyltrimethoxysilane or vinyltriisopropoxysilane. The source of the silane coupling agent is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 0.1-5 parts by weight of silane coupling agent, preferably 0.5-3 parts by weight.
In the present invention, the lubricant is preferably selected from one or more of fischer-tropsch wax C80, fischer-tropsch wax C100, oleamide and erucamide, more preferably fischer-tropsch wax C80, fischer-tropsch wax C100, oleamide or erucamide. The source of the lubricant is not particularly limited in the present invention, and commercially available products of the above-mentioned Fischer-Tropsch wax C80, Fischer-Tropsch wax C100, oleamide and erucamide, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 0.1-1 part by weight of lubricant, preferably 0.5 part by weight.
In the present invention, the antioxidant preferably comprises, more preferably consists of, a primary antioxidant and a secondary antioxidant; the primary antioxidant is preferably selected from one or more of RIANOX 1010, RIANOX 1076 and RIANOX 1790, and the secondary antioxidant is preferably selected from one or more of RIANOX 168, RIANOX 626, RIANOX DSTP and RIANOX DLTP. The source of the antioxidant is not particularly limited in the present invention, and commercially available products known to those skilled in the art may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 0.1-1 part by weight of antioxidant, preferably 0.44-0.5 part by weight.
In the present invention, the filler is preferably selected from one or more of mica, talc, kaolin, silica and calcium carbonate, more preferably calcium carbonate and/or talc. The source of the filler is not particularly limited in the present invention, and commercially available products of the above mica, talc, kaolin, silica and calcium carbonate, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 15-50 parts by weight of filler, and preferably 16-32 parts by weight.
In the present invention, the water absorbing agent is preferably selected from one or more of molecular sieve, calcium oxide, calcium chloride, magnesium sulfate, magnesium chloride, calcium sulfate and silica gel, and more preferably is molecular sieve, calcium chloride, calcium oxide or calcium sulfate. The source of the water-absorbing agent in the present invention is not particularly limited, and commercially available molecular sieves, calcium oxide, calcium chloride, magnesium sulfate, magnesium chloride, calcium sulfate and silica gel, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 1-5 parts by weight of water absorbent, preferably 1-3.5 parts by weight.
In the present invention, the thixotropic agent is preferably selected from white carbon black and/or carbon black, and more preferably white carbon black or carbon black. The source of the thixotropic agent is not particularly limited in the present invention, and commercially available products of the above-mentioned white carbon black and carbon black, which are well known to those skilled in the art, may be used.
In the invention, the hot melt adhesive for the hollow glass warm edge strip comprises 5-25 parts by weight of carbon black, and preferably 10-20 parts by weight.
The hot melt adhesive for the hollow glass warm edge strip provided by the invention adopts specific content components, so that the integral better interaction is realized, and the product has excellent high-temperature adhesion with glass and excellent adhesion to silicone adhesive.
The invention provides a preparation method of a hot melt adhesive for a hollow glass warm edge strip, which comprises the following steps:
adding butyl rubber, a polyisobutylene mixture, a polymer and a lubricant into a kneading machine at the temperature of 150-180 ℃ for blending and kneading for 10-60 minutes, cooling to 130-150 ℃, adding a silane coupling agent for kneading and stirring for 4-25 minutes, adding an auxiliary crosslinking agent, heating to 170-190 ℃, kneading for 10-30 minutes, cooling to 150-180 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 1-3 hours at the temperature of 150-180 ℃ under the vacuum degree of 0.08-0.1 MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
In the present invention, the butyl rubber, the polyisobutylene mixture, the tackifying resin, the polymer, the auxiliary crosslinking agent, the silane coupling agent, the lubricant, the antioxidant, the filler, the water absorbent and the thixotropic agent are the same as those in the above technical solution, and are not described herein again.
In the present invention, the preparation method preferably specifically comprises:
adding butyl rubber, a polyisobutylene mixture, a polymer and a lubricant into a kneading machine at the temperature of 160-180 ℃ for blending and kneading for 15-45 minutes, cooling to 130-150 ℃, adding a silane coupling agent for kneading and stirring for 5-20 minutes, adding an auxiliary crosslinking agent, heating to 170-180 ℃, kneading for 20-30 minutes, cooling to 150-160 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 1-2 hours at the temperature of 170-180 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
In the invention, the hot melt adhesive for the hollow glass warm edge strip is subjected to extrusion molding to obtain the thermoplastic spacing strip for the hollow glass warm edge.
The preparation method provided by the invention has the advantages of simple process, easily-controlled conditions and wide application prospect.
The invention provides a hot melt adhesive for a hollow glass warm edge strip, which is prepared from the following raw materials: 1-10 parts by weight of butyl rubber; 25-50 parts by weight of a polyisobutylene mixture; 5-25 parts by weight of tackifying resin; 5-15 parts of a polymer; 0.01-0.1 part by weight of an auxiliary crosslinking agent; 0.1-5 parts by weight of a silane coupling agent; 0.1 to 1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-5 parts by weight of a water absorbent; 5-25 parts of a thixotropic agent; the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer. Compared with the prior art, the hot melt adhesive for the hollow glass warm edge strip provided by the invention adopts specific content components, so that the integral better interaction is realized, and the product has excellent high-temperature adhesion with glass and excellent adhesion to silicone adhesive.
In addition, the preparation method provided by the invention has the advantages of simple process, easily-controlled conditions and wide application prospect.
To further illustrate the present invention, the following examples are provided for illustration. The starting materials used in the following examples of the present invention are all commercially available products.
Example 1
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneader with the temperature of 160 ℃ for blending and kneading for 30 minutes, cooling to 130 ℃, adding a silane coupling agent for kneading and stirring for 5 minutes, adding an auxiliary crosslinking agent, heating to 170 ℃, kneading for 30 minutes, cooling to 150 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 2 hours at the temperature of 170 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The amounts and specific types of the above-mentioned raw materials are shown in Table 1.
TABLE 1 amount and specific kind of raw materials used in example 1 of the present invention
Example 2
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneading machine at the temperature of 170 ℃ for blending and kneading for 15 minutes, cooling to 140 ℃, adding a silane coupling agent, kneading and stirring for 10 minutes, adding an auxiliary crosslinking agent, heating to 170 ℃, kneading for 20 minutes, cooling to 160 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 1 hour at the temperature of 180 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The amounts and specific types of the above-mentioned raw materials are shown in Table 2.
TABLE 2 amounts and specific types of raw materials used in example 2 of the present invention
Example 3
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneading machine at the temperature of 180 ℃ for blending and kneading for 15 minutes, cooling to 140 ℃, adding a silane coupling agent, kneading and stirring for 15 minutes, adding an auxiliary crosslinking agent, heating to 170 ℃, kneading for 25 minutes, cooling to 150 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 1 hour at the temperature of 170 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strips.
The amounts and specific kinds of the above-mentioned raw materials are shown in Table 3.
TABLE 3 amount and specific kind of raw materials used in example 3 of the present invention
Example 4
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneader with the temperature of 160 ℃ for blending and kneading for 45 minutes, cooling to 150 ℃, adding a silane coupling agent, kneading and stirring for 20 minutes, adding an auxiliary crosslinking agent, heating to 170 ℃, kneading for 20 minutes, cooling to 150 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 1 hour at the temperature of 180 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strips.
The amounts and specific types of the above-mentioned raw materials are shown in Table 4.
TABLE 4 amount and specific kind of raw materials used in example 4 of the present invention
Example 5
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneading machine at the temperature of 170 ℃ for blending and kneading for 45 minutes, cooling to 150 ℃, adding a silane coupling agent, kneading and stirring for 20 minutes, adding an auxiliary crosslinking agent, heating to 180 ℃, kneading for 20 minutes, cooling to 160 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 2 hours at the temperature of 180 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The amounts and specific types of the above-mentioned raw materials are shown in Table 5.
TABLE 5 amounts and specific kinds of raw materials used in example 5 of the present invention
Comparative example 1
(1) Under the condition of 130-160 ℃ (preferably 145 ℃), sequentially adding butyl rubber, polyisobutylene, phthalate, ethylene ethyl acrylate copolymer, naphthenic oil and antioxidant 1010 into a kneader, and blending for 30min under the vacuum protection to obtain a mixture 1;
(2) sequentially adding calcium carbonate, water absorbing powder and carbon black into the mixture 1, and fully mixing for 60min under vacuum protection to obtain a mixture 2;
(3) and adding gamma-aminopropyltrimethoxysilane into the mixture and the mixture 2, mixing for 60min in vacuum, and extruding and forming to obtain the hot-melt warm edge strip for the hollow glass.
The amounts and specific types of the above-mentioned raw materials are shown in Table 6.
TABLE 6 raw materials used and specific kinds used in comparative example 1
Comparative example 2
Adding butyl rubber, polyisobutylene, a polymer and a lubricant into a kneader with the temperature of 160 ℃ for blending and kneading for 30 minutes, cooling to 150 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 2 hours at the temperature of 170 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The amounts and specific types of the above-mentioned raw materials are shown in Table 7.
TABLE 7 raw material amounts and specific kinds used in comparative example 2
Comparative example 3
Adding butyl rubber, polyisobutylene and a lubricant into a kneader with the temperature of 160 ℃ for blending and kneading for 30 minutes, cooling to 130 ℃, adding a silane coupling agent for kneading and stirring for 5 minutes, adding an auxiliary crosslinking agent, heating to 170 ℃, kneading for 30 minutes, cooling to 150 ℃, sequentially adding a tackifying resin, a filler, a water absorbent, an antioxidant and a thixotropic agent, and continuously kneading for 2 hours at the temperature of 170 ℃ under the vacuum degree of 0.09MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
The amounts and specific types of the above-mentioned raw materials are shown in Table 8.
TABLE 8 raw material amounts and specific kinds used in comparative example 3
The hot melt adhesive for the hollow glass warm edge strip provided in the embodiments 1 to 5 and the comparative examples 1 to 3 was tested for various performances, and the test method was as follows:
the method for testing the normal temperature/high temperature adhesion with glass comprises the following steps: using a glass sheet with the size of 100 × 25 × 3mm as a base material, wiping the glass sheet with alcohol, airing, cutting out a hot melt adhesive with a proper size, and adhering the hot melt adhesive to the glass sheet to prepare a sample with the adhering area of 25 × 25 mm; curing for 48 hours under standard conditions; the samples were heated at 23 ℃ and 80 ℃ for 30min, respectively, and tested according to GB/T7124-2008 to obtain the adhesive strength at 23 ℃ and 80 ℃.
And a method for testing the adhesion of the silicone adhesive comprises the following steps: using a glass sheet with the thickness of 100 × 25 × 3mm as a substrate, wiping the glass sheet with alcohol, and drying; pressing the hot melt adhesive into a film with the thickness of 2mm, cutting out the film with proper size, and respectively adhering the film with a glass sheet; then, a 2mm thick two-component silicone adhesive was applied to the surface of the hot melt adhesive, and the hot melt adhesive was immediately bonded to another glass plate with hot melt adhesive to prepare a sample. And curing for 48 hours under standard conditions, and testing according to GB/T7124-2008 to obtain the bonding strength between the hot melt adhesive and the bi-component silicone adhesive.
The results are shown in Table 9.
Table 9 data of the adhesive properties of the hot melt adhesives for hollow glass warm edge strips provided in examples 1 to 5 and comparative examples 1 to 3
As can be seen from table 1, the hot melt adhesives for hollow glass warm edge strips provided in embodiments 1 to 5 of the present invention have good room temperature/high temperature adhesion to glass and excellent adhesion to silicone adhesives.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The hot melt adhesive for the hollow glass warm edge strip is prepared from the following raw materials:
1-10 parts by weight of butyl rubber;
25-50 parts by weight of a polyisobutylene mixture;
5-25 parts by weight of tackifying resin;
5-15 parts by weight of a polymer;
0.01-0.1 part by weight of an auxiliary crosslinking agent;
0.1-5 parts by weight of a silane coupling agent;
0.1-1 part by weight of a lubricant;
0.1-1 part by weight of an antioxidant;
15-50 parts by weight of a filler;
1-5 parts by weight of a water absorbent;
5-25 parts of a thixotropic agent;
the polymer is selected from one or more of metallocene polyolefin, amorphous alpha-olefin copolymer, styrene block copolymer and ethylene vinyl acetate copolymer; the auxiliary crosslinking agent is selected from one or more of dicumyl peroxide, benzoyl peroxide, di-tert-butyl cumene peroxide and 2, 4-dichlorobenzoyl peroxide; the general formula of the silane coupling agent is YSiX2Z; wherein Y is selected from vinyl or (meth) acryloyloxy, X is selected from-OCH3、-OC2H5or-OC3H7，ZSelected from-H, -OCH3、-OC2H5、-OC3H7or-CH3。
2. The hot melt adhesive for the hollow glass warm edge strip as claimed in claim 1, wherein the viscosity average molecular weight of the butyl rubber is 500000-3000000.
3. The hot melt adhesive for a hollow glass warm edging according to claim 1, characterized in that the polyisobutylene mixture is selected from two or more of low molecular weight polyisobutylene, medium molecular weight polyisobutylene and high molecular weight polyisobutylene; the viscosity average molecular weight of the low molecular weight polyisobutylene is 400-30000, the molecular weight of the medium molecular weight polyisobutylene is 30000-100000, and the molecular weight of the high molecular weight polyisobutylene is 100000-2000000.
4. The hot melt adhesive for the hollow glass warm edging according to claim 1, characterized in that the tackifying resin is selected from one or more of terpene resins, rosin resins, dammar resins, maleic anhydride modified petroleum resins, hydrogenated petroleum resins and coumarone resins.
5. The hot melt adhesive for a hollow glass warm edging according to claim 1, characterized in that the lubricant is selected from one or more of the group consisting of Fischer-Tropsch wax C80, Fischer-Tropsch wax C100, oleamide and erucamide.
6. The hot melt adhesive for hollow glass warm edging as claimed in claim 1, wherein the antioxidant comprises a primary antioxidant and a secondary antioxidant; the primary antioxidant is selected from one or more of RIANOX 1010, RIANOX 1076 and RIANOX 1790, and the secondary antioxidant is selected from one or more of RIANOX 168, RIANOX 626, RIANOX DSTP and RIANOX DLTP.
7. The hot melt adhesive for hollow glass warm edging according to claim 1, characterized in that the filler is selected from one or more of mica, talc, kaolin, silica and calcium carbonate; the water absorbent is selected from one or more of molecular sieve, calcium oxide, calcium chloride, magnesium sulfate, magnesium chloride, calcium sulfate and silica gel; the thixotropic agent is selected from white carbon black and/or carbon black.
8. The preparation method of the hot melt adhesive for the hollow glass warm edge strip as claimed in any one of claims 1 to 7 comprises the following steps:
adding butyl rubber, polyisobutylene mixture, polymer and lubricant into a kneading machine at the temperature of 150-180 ℃ for blending and kneading for 10-60 minutes, cooling to 130-150 ℃, adding a silane coupling agent for kneading and stirring for 4-25 minutes, adding an auxiliary crosslinking agent, heating to 170-190 ℃, kneading for 10-30 minutes, cooling to 150-180 ℃, sequentially adding tackifying resin, filler, water absorbent, antioxidant and thixotropic agent, and continuously kneading for 1-3 hours at the temperature of 150-180 ℃ under the vacuum degree of 0.08-0.1 MPa to obtain the hot melt adhesive for the hollow glass warm edge strip.
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| CN113136153A (en) * | 2021-05-28 | 2021-07-20 | 河南诚信密封新材料科技有限公司 | Hollow glass edge warming adhesive and preparation method thereof |
| CN113480201B (en) * | 2021-08-24 | 2022-10-14 | 揭阳市东信智能门窗科技有限公司 | Anti-noise hollow glass and preparation method thereof |
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| CN101805569B (en) * | 2009-10-23 | 2012-02-22 | 郑州中原应用技术研究开发有限公司 | Transparent butyl hot-melt sealant and preparation method thereof |
| CN102504727B (en) * | 2011-10-24 | 2013-06-05 | 杜德升 | Sealing adhesive strip for ribbed self-adhesive glass and manufacturing method thereof |
| CN103588397A (en) * | 2013-10-23 | 2014-02-19 | 姚玉斌 | Energy-saving hollow glass edge warming adhesive tape as well as preparation method thereof |
| CN105385388B (en) * | 2015-12-23 | 2017-12-05 | 成都硅宝科技股份有限公司 | Butyl hot-melt glue and preparation method thereof |
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