CN112480845B - Adhesive for heat insulation tile and preparation method thereof - Google Patents
Adhesive for heat insulation tile and preparation method thereof Download PDFInfo
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- CN112480845B CN112480845B CN202011380861.9A CN202011380861A CN112480845B CN 112480845 B CN112480845 B CN 112480845B CN 202011380861 A CN202011380861 A CN 202011380861A CN 112480845 B CN112480845 B CN 112480845B
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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
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/06—Polyethene
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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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention provides an adhesive for a heat insulation tile, which is mainly prepared from the following raw materials in parts by weight: 5-20 parts of linear low-density polyethylene, 10-30 parts of functionalized modified polyethylene master batch, 10-40 parts of ethylene-vinyl acetate copolymer, 20-40 parts of low-density polyethylene, 5-20 parts of impact-resistant polystyrene and 0.3-1.5 parts of PPA processing aid master batch; the functionalized modified polyethylene master batch is prepared from the following raw materials in parts by weight: 90-98 parts of metallocene linear low-density polyethylene, 1-5 parts of polypropylene, 1-5 parts of styrene isoprene-styrene-block copolymer, 0.01-0.05 part of initiator and 0.5-2 parts of unsaturated carboxylic acid and/or unsaturated anhydride monomer.
Description
Technical Field
The invention belongs to the technical field of hot melt adhesive, and particularly relates to a bonding resin for a heat insulation tile and a preparation method thereof.
Background
In recent years, environmental-friendly building materials and energy-saving building materials are accepted by users, and the heat insulation tile is widely applied to the field of buildings as a novel building material. At present, the common heat insulation tiles are made of cement or asbestos, the light reflection capability of the heat insulation tiles is poor, after sunlight irradiates on the heat insulation tiles, most of heat is absorbed by the heat insulation tiles, the heat insulation tiles become a heat source, and the heat insulation effect is poor. In addition, the products have different defects in the aspects of heat insulation, fire prevention, water prevention, corrosion resistance, strength, wind resistance, environmental protection and the like, and cannot meet the requirements of customers.
The novel heat insulation tile is formed by compounding multiple layers of materials, the outer layer is an aluminum foil or an aluminum-plated film, a layer of PET protective film is further pasted on the front surface of the heat insulation tile, the inner layer is a galvanized steel plate, and the galvanization has the function of corrosion resistance. The novel heat insulation tile is used as a composite novel building, and has high light reflectivity and good heat insulation effect. Meanwhile, the weight of the device is greatly reduced, and the device is more convenient to install. The appearance of the aluminum product has the advantages of heat insulation, beautiful appearance and high grade.
The adhesive used in the prior art is mature in the technical aspect of bonding strength; meanwhile, diversification development is carried out, such as flame retardance, environmental protection and the like, but when the heat insulation tile is used for heat insulation tile products, an aluminum film and a galvanized steel sheet need to be bonded, so that the bonding strength is insufficient, and great instability is brought to the quality of the heat insulation tile products.
Disclosure of Invention
The invention aims to provide an adhesive for a heat insulation tile, which has excellent adhesive property on a multilayer structure of the heat insulation tile, and the specific scheme is as follows:
the adhesive for the heat insulation tile is mainly prepared from the following raw materials in parts by weight:
5-20 parts of linear low-density polyethylene, 10-30 parts of functionalized modified polyethylene master batch, 10-40 parts of ethylene-vinyl acetate copolymer, 20-40 parts of low-density polyethylene, 5-20 parts of impact-resistant polystyrene and 0.3-1.5 parts of PPA processing aid master batch;
the functionalized modified polyethylene master batch is prepared from the following raw materials in parts by weight: 90-98 parts of metallocene linear low-density polyethylene, 1-5 parts of polypropylene, 1-5 parts of styrene isoprene-styrene-block copolymer, 0.01-0.05 part of initiator and 0.5-2 parts of unsaturated carboxylic acid and/or unsaturated anhydride monomer.
Preferably, the adhesive is mainly prepared from the following raw materials in parts by weight: 10-15 parts of linear low-density polyethylene, 15-25 parts of functionalized modified polyethylene master batch, 20-30 parts of ethylene-vinyl acetate copolymer, 30-35 parts of low-density polyethylene, 10-18 parts of impact-resistant polystyrene and 0.4-1.0 part of PPA processing aid master batch;
preferably, the unsaturated carboxylic acid and/or unsaturated anhydride monomer is at least one of maleic anhydride, maleic anhydride derivatives, methacrylic acid and methacrylic acid derivatives.
Preferably, the initiator is at least one of dibenzoyl peroxide, bis-penta initiator, and 1, 4-bis (t-butylperoxy propyl) benzene.
Preferably, the metallocene linear low density polyethylene is a copolymer of ethylene and an a-olefin, wherein the a-olefin is preferably 1-hexene or 1-butene.
Preferably, the raw material also comprises 0.08-0.15 weight part of antioxidant, preferably, the antioxidant is hindered phenol antioxidant, preferably hindered phenol pentaerythritol ester antioxidant.
A method of preparing an adhesive as described in any of the above, the method comprising the steps of:
(a) Uniformly mixing metallocene linear low-density polyethylene, polypropylene, styrene isoprene-styrene-block copolymer, initiator and unsaturated carboxylic acid and/or unsaturated anhydride monomer, and extruding to obtain functionalized modified polyethylene master batch;
(b) And (b) uniformly mixing the functionalized modified polyethylene master batch prepared in the step (a) with linear low-density polyethylene, ethylene-vinyl acetate copolymer, low-density polyethylene, impact-resistant polystyrene and antioxidant, and extruding to obtain the adhesive.
The invention provides an adhesive, which is prepared from linear low-density polyethylene, functionalized modified polyethylene master batch, PPA processing aid master batch, ethylene-vinyl acetate copolymer, low-density polyethylene and impact-resistant polystyrene, wherein the functionalized modified polyethylene master batch is prepared from metallocene linear low-density polyethylene, polypropylene, styrene isoprene-styrene-block copolymer, an initiator, unsaturated carboxylic acid and/or unsaturated anhydride monomer. The ethylene-vinyl acetate copolymer can reduce the processing temperature of the adhesive; the polypropylene can reduce the crosslinking reaction, thereby reducing the crystal point of the product; the high impact polystyrene effectively improves the separation of polarity and non-polarity in the bonding resin, and is beneficial to improving the bonding reaction speed, thereby improving the production speed; the functionalized modified polyethylene master batch selects styrene isoprene-styrene-block copolymer which can be matched with high impact polystyrene to improve the bonding strength with the aluminum film and the galvanized steel sheet; the obtained adhesive has the advantages of low melting point, few crystal points, excellent film-forming property, strong bonding property and high bonding speed.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
According to the first aspect of the invention, the adhesive is provided, and the adhesive is mainly prepared from the following raw materials in parts by weight:
5-20 parts of linear low-density polyethylene, 10-30 parts of functionalized modified polyethylene master batch, 10-40 parts of ethylene-vinyl acetate copolymer, 20-40 parts of low-density polyethylene, 5-20 parts of impact-resistant polystyrene and 0.3-1.5 parts of PPA processing aid master batch;
the functionalized modified polyethylene master batch is prepared from the following raw materials in parts by weight: 90-98 parts of metallocene linear low-density polyethylene, 1-5 parts of polypropylene, 1-5 parts of styrene isoprene-styrene-block copolymer, 0.01-0.05 part of initiator and 0.5-2 parts of unsaturated carboxylic acid and/or unsaturated anhydride monomer.
The adhesive obtained by the synergistic cooperation of the raw materials with specific dosage has the advantages of lower melting point, less crystal points, excellent film forming property, excellent bonding property and high bonding speed for the multilayer structure of the heat insulation tile.
Metallocene linear low density polyethylene is a copolymer of ethylene and an a-olefin, wherein the a-olefin is preferably 1-hexene or 1-butene. The metallocene linear low density polyethylene is present in an amount of 90 to 98 parts, typical but not limiting parts by weight of the metallocene linear low density polyethylene being 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts or 98 parts.
The polypropylene is homopolymerized polypropylene, and the selectable melt index is 10-20g/10min. Polypropylene is 1 to 5 parts, typical but not limiting parts by weight of polypropylene are 1 part, 2 parts, 3 parts, 4 parts or 5 parts.
The functionalized modified polyethylene master batch is 10-30 parts, preferably 15-25 parts, and the functionalized modified polyethylene master batch is typically, but not limited to, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts by weight.
The linear low density polyethylene is a copolymer of ethylene and an a-olefin, optionally having a density of from 0.918 to 0.935g/cm3 and optionally having a melt index of from 10 to 20g/10min. Preferably, the linear low density polyethylene is 10 to 15 parts, typically but not limited to 10, 11, 12, 13, 14, or 15 parts by weight, and the like.
The ethylene-vinyl acetate copolymer has an optional vinyl acetate content of 15-30%. Ethylene-vinyl acetate copolymer is preferably 20-30 parts, with typical but non-limiting parts by weight of the ethylene-vinyl acetate copolymer being 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, or the like.
Low density polyethylene having a melt index of 10 to 20g/10min, preferably in an amount of 30 to 35 parts, typically but not limited to 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, etc.
Impact-resistant polystyrene having a melt index of 2 to 10g/10min. The impact resistant polystyrene is 5 to 20 parts, preferably 10 to 18 parts, typical but not limiting parts by weight of the impact resistant polystyrene are 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, or the like.
As a further preferable embodiment, the unsaturated carboxylic acid and/or unsaturated acid anhydride monomer is at least one of maleic anhydride, a maleic anhydride derivative, methacrylic acid, and a methacrylic acid derivative. In the preferred embodiment, maleic anhydride and methacrylic acid and derivatives thereof are grafted on metallocene linear low density polyethylene, which helps to improve grafting rate and polarity, thereby providing stable adhesive performance for the adhesive.
As a further preferred embodiment, the initiator is at least one of dibenzoyl peroxide, bis-penta initiator and 1, 4-bis (t-butylperoxy propyl) benzene.
As a further preferable technical scheme, the raw material further comprises 0.08-0.15 parts by weight of an antioxidant, preferably, the antioxidant is a hindered phenol antioxidant, and preferably, the antioxidant is a hindered phenol pentaerythritol ester antioxidant.
According to a second aspect of the present invention, there is provided a method for preparing the above adhesive, comprising the steps of:
(a) Uniformly mixing metallocene linear low-density polyethylene, polypropylene, styrene isoprene-styrene-block copolymer, initiator and unsaturated carboxylic acid and/or unsaturated anhydride monomer, and extruding to obtain functionalized modified polyethylene master batch;
(b) And (b) uniformly mixing the functionalized modified polyethylene master batch prepared in the step (a) with linear low-density polyethylene, ethylene-vinyl acetate copolymer, low-density polyethylene, impact-resistant polystyrene and antioxidant, and extruding to obtain the adhesive.
In step (a), the temperature of the extrusion is 50 to 230 ℃ and/or the screw speed is 200 to 400rpm, preferably 250 to 350rpm. In step (b), the temperature of the extrusion is 50-220 ℃ and/or the screw speed is 200-400rpm, preferably 250-320rpm.
The temperature of the extruder is divided into 8-12 sections, the temperature of the feeding section is 50 ℃, the temperature is gradually increased along with the flowing direction of the materials, and finally, the temperature of the discharging port is 210 ℃.
The adhesive can be prepared by uniformly mixing the raw materials and then extruding. Simple process flow, simple and convenient operation, easy implementation, wide source of treatment raw materials, economy, easy obtainment and no toxicity and environmental protection. The invention has no special restrictions on environment, field, equipment and the like, the adopted raw materials have low price, good safety and environmental protection performance, low requirements on equipment, low investment cost, strong practicability and adaptability, is an environment-friendly, energy-saving, high-efficiency and low-cost adhesive preparation method, can realize high-volume production at lower cost, and is easy to popularize and apply.
The extrusion method is not particularly limited in the present invention, and the extrusion method known to those skilled in the art may be used. For example, the extrusion may be a twin-screw extrusion or a single-screw extrusion.
The technical solution of the present invention will be further described with reference to examples and comparative examples.
Examples
Examples 1-3, comparative example 1 preparation of functionalized modified polyethylene:
the functionalized modified polyethylene prepared in the embodiments 1-3 and the comparative example 1 is prepared by uniformly mixing the following raw materials according to the formula proportion (weight percentage) in the following table 1, and performing extrusion granulation by a plasticizing and blending process through a reactive double-screw extruder, wherein the length-diameter ratio L: D of the double-screw extruder is not less than 1, and the extrusion processing temperature range is 50-230 ℃.
Table 1 raw material formulation ratios of examples 1-3 and comparative example 1 functionalized modified polyethylenes
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| MLLDPE | 95 | 95 | 95 | 95 |
| Homopoly PP | 3 | 3 | 3 | 3 |
| SIS | 2 | 2 | 2 | |
| POE | 2 | |||
| Bis-2, 5-hexane | 0.02 | 0.02 | 0.02 | 0.02 |
| Maleic anhydride monomer | 1 | 1 | 1 | 1 |
Preparation of adhesive resin for heat insulation tile
The adhesive resin for the heat insulation tile in the embodiments 1 to 3 and the comparative example 1 is prepared by uniformly mixing the raw materials according to the formula proportion (weight percentage) in the following table 1, and performing extrusion granulation by a plasticizing and blending process through a reactive double-screw extruder, wherein the rotating speed of a main machine is 250-450rpm, the length-diameter ratio L of the double-screw extruder is more than or equal to 40, and the extrusion processing temperature range is 50-220 ℃.
Table 2 raw material formulation proportions of examples 1-3 and comparative example 1 functionalized modified polyethylene
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| LLDPE | 10 | 12 | 14 | 10 |
| Functionalized modified polyethylene | 21 | 20 | 18 | 21 |
| EVA | 27 | 25 | 22 | 27 |
| LDPE | 31 | 30 | 30 | 31 |
| HIPS | 11 | 13 | 16 | 11 |
| PPA master batch | 0.5 | 0.5 | 0.5 | 0.5 |
| Antioxidant A1010 | 0.1 | 0.1 | 0.1 | 0.1 |
| Antioxidant B245 | 0.1 | 0.1 | 0.1 | 0.1 |
The products of examples 1 to 3 and comparative example 1 were respectively blown into a film having a thickness of 0.03mm, and then heat insulating tile structures of 1,2,3,4 were respectively prepared: the performance of the aluminum foil/adhesive film/galvanized sheet is measured as shown in table 3 below. The peel strength test adopts GB/T1457-2005, the melt index test adopts GB3682-2000, the density test adopts GB1033-1986, the tensile property test adopts GB/T1040-2006, the Shore hardness test adopts GB9342-1988, and the number of crystal points is 1m 2 The number of crystal points in (1).
TABLE 3 other physical Property test results
It should be understood that the contents not described in detail in the description of the above preparation method are common parameters that can be easily conceived by those skilled in the art, and thus the detailed description thereof may be omitted.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The adhesive for the heat insulation tile is characterized by being mainly prepared from the following raw materials in parts by weight:
5-20 parts of linear low-density polyethylene, 10-30 parts of functionalized modified polyethylene master batch, 10-40 parts of ethylene-vinyl acetate copolymer, 20-40 parts of low-density polyethylene, 5-20 parts of impact-resistant polystyrene and 0.3-1.5 parts of PPA processing aid master batch;
the functionalized modified polyethylene master batch is prepared from the following raw materials in parts by weight: 90-98 parts of metallocene linear low-density polyethylene, 1-5 parts of polypropylene, 1-5 parts of styrene isoprene-styrene-block copolymer, 0.01-0.05 part of initiator and 0.5-2 parts of unsaturated carboxylic acid and/or unsaturated anhydride monomer.
2. The adhesive according to claim 1, wherein the adhesive is mainly prepared from the following raw materials in parts by weight:
10-15 parts of linear low-density polyethylene, 15-25 parts of functionalized modified polyethylene master batch, 20-30 parts of ethylene-vinyl acetate copolymer, 30-35 parts of low-density polyethylene, 10-18 parts of impact-resistant polystyrene and 0.4-1.0 part of PPA processing aid master batch.
3. Adhesive according to claim 1, wherein the unsaturated carboxylic acid and/or unsaturated anhydride monomer is at least one of maleic anhydride, maleic anhydride derivatives, methacrylic acid and methacrylic acid derivatives.
4. The adhesive of claim 1 wherein the initiator is at least one of dibenzoyl peroxide, bis-penta initiator, and 1, 4-bis (t-butylperoxy diisopropyl) benzene.
5. An adhesive according to any of claims 1 to 4 wherein the metallocene linear low density polyethylene is a copolymer of ethylene and an a-olefin, wherein the a-olefin is 1-hexene or 1-butene.
6. The adhesive according to any one of claims 1 to 4, wherein the raw material further comprises 0.08 to 0.15 parts by weight of an antioxidant.
7. The adhesive of claim 6 wherein the antioxidant is a hindered phenolic antioxidant.
8. Method for preparing an adhesive according to any one of claims 1 to 7, characterized in that it comprises the following steps:
(a) Uniformly mixing metallocene linear low-density polyethylene, polypropylene, styrene isoprene-styrene-block copolymer, initiator and unsaturated carboxylic acid and/or unsaturated anhydride monomer, and extruding to obtain functionalized modified polyethylene master batch;
(b) And (b) uniformly mixing the functionalized modified polyethylene master batch prepared in the step (a) with linear low-density polyethylene, ethylene-vinyl acetate copolymer, low-density polyethylene, impact-resistant polystyrene and antioxidant, and extruding to obtain the adhesive.
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| CN202011380861.9A CN112480845B (en) | 2020-11-30 | 2020-11-30 | Adhesive for heat insulation tile and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011380861.9A CN112480845B (en) | 2020-11-30 | 2020-11-30 | Adhesive for heat insulation tile and preparation method thereof |
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| CN112480845A CN112480845A (en) | 2021-03-12 |
| CN112480845B true CN112480845B (en) | 2022-12-20 |
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| CN109321172A (en) * | 2018-10-17 | 2019-02-12 | 河源市普立隆新材料科技有限公司 | Adhering resin for aluminium-plastic board, preparation method and aluminium-plastic panel |
| CN111154427B (en) * | 2019-12-30 | 2022-06-21 | 河源市普立隆新材料科技有限公司 | Aluminum ceiling glue film structure and aluminum ceiling structure thereof |
| CN111117524B (en) * | 2019-12-30 | 2021-12-07 | 河源市普立隆新材料科技有限公司 | Adhesive resin for aluminum ceiling |
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