CN112175550A - Special sealant for polycarbonate products - Google Patents
Special sealant for polycarbonate products Download PDFInfo
- Publication number
- CN112175550A CN112175550A CN202011117262.8A CN202011117262A CN112175550A CN 112175550 A CN112175550 A CN 112175550A CN 202011117262 A CN202011117262 A CN 202011117262A CN 112175550 A CN112175550 A CN 112175550A
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- CN
- China
- Prior art keywords
- polycarbonate
- percent
- sealant
- special
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C09J129/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers
- C09J129/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
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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
- 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
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
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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
- C08L2312/00—Crosslinking
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a special sealant for polycarbonate products, which consists of a polyvinyl formal adhesive, methyl tributyl ketoxime silane, vinyl tributyloxime silane, tin laurate, Y-aminopropyltriethoxysilane, 3- (2-aminoethylamino) -propyltrimethoxysilane, polycarbonate, cyclic polydimethylsiloxane and a light stabilizer. The adhesive sealant is a single-component, neutral, high-modulus, room-temperature curable, high-performance, weather-resistant and waterproof adhesive sealant, and has good adhesion, sealing and protective buffering effects on various base materials, particularly Polycarbonate (PC) plates, Ethylene Propylene Diene Monomer (EPDM) sealing rubber strips, aluminum alloy, stainless steel, cement and the like.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a special sealant for a polycarbonate product.
Background
In the construction or finishing works, various types of PC (polycarbonate) works: for example, polycarbonate strength plate, polycarbonate plate sunlight room, polycarbonate plate daylighting roof and the like need to be bonded and sealed, but most of the above PC engineering uses glass cement, but the bonding and sealing of PC plates by glass cement has the problems of low bonding strength, easy falling off, poor waterproofness and durability, large cracking risk and the like: the glass cement is prepared from 107 glue as a main material, and a sealant produced after crosslinking and curing is easy to harden and become brittle, is easy to fall off after moving, and has poor weather resistance; secondly, the glass cement generally adopts an inorganic mineral (white carbon black) material as a reinforcing filler, the bonding capability of the inorganic mineral (white carbon black) material with an organic PC molecular chain is poor, and the glass cement is easy to scratch a PC plate; the mineral filler of the glass cement can scratch the PC board, reduce the transparency of the board, increase the cracking and board explosion probability and other potential safety hazards, greatly reduce the service life of the PC board and the construction quality, and generate certain potential safety hazards.
Disclosure of Invention
Therefore, based on the background, the invention provides the special sealant for the polycarbonate product, which has strong viscosity, good waterproofness and weather resistance and higher safety.
The technical scheme provided by the invention is as follows:
the special glue for PC is prepared from the following raw materials in parts by weight:
50-60% of polyvinyl formal adhesive
4 to 5 percent of methyl tributyrinoxime silane
4 to 5 percent of vinyl tributyrinoxime silane
0.02 to 0.06 percent of tin laurate
0.3 to 0.5 percent of Y-aminopropyl triethoxysilane
3- (2-aminoethylamino) -propyltrimethoxysilane 0.1-0.3%
20 to 40 percent of polycarbonate
0.2 to 0.6 percent of cyclic polydimethylsiloxane
0.05 to 0.1 percent of light stabilizer
Further, the using method comprises the following steps: uniformly mixing the PC special glue prepared according to the quantity, then uniformly extruding the mixture to a position to be bonded or sealed by matching with a soft glue gun, and curing the mixture completely.
Furthermore, the PC special glue is used in a clean room temperature environment.
Furthermore, the PC special glue can absorb water molecules in the air to perform chemical reaction under a normal room temperature environment (the air humidity is 20% -80%), the curing speed is fastest, and the curing time is within 12 hours; in a room temperature environment with slightly low air humidity (the air humidity is lower than 20%), the curing reaction takes a long time to absorb enough water molecules to participate in the curing reaction, so the curing time is longer and is within 72 hours; in a room temperature environment with high air humidity (the air humidity is more than 80%), the surface absorbs water molecules in the air too fast, so that the absorption saturation is caused quickly, the speed of the water molecules penetrating to the inner wall is hindered, the curing speed is slow, and the curing time is within 24 hours.
The invention has the beneficial effects that:
the adhesive sealant is a single-component, neutral, high-modulus, room-temperature curable, high-performance, weather-resistant and waterproof adhesive sealant, and has good adhesion, sealing and protective buffering effects on various base materials, particularly on PC (polycarbonate) plates, ethylene propylene diene monomer sealing rubber strips, aluminum alloy, stainless steel, cement and the like.
The base material is room temperature vulcanized silicone rubber which can be combined with water molecules in air in a room temperature environment to generate a cross-linking curing reaction to generate high-strength and high-elasticity rubber with a three-dimensional network structure, can adapt to different property changes of expansion with heat and contraction with cold between a PC board and metal or cement or stainless steel, has 7 times of elasticity and strong bonding force;
secondly, the filling material is PC (polycarbonate) particles, the bonding force between the PC particles and the PC board is strong, the PC particles can be in barrier-free exchange linkage with molecular chains of the PC board, and the PC particles and the molecular chains are mutually adsorbed and fused into a whole, so that the permeation of water molecules can be prevented; and as time goes on, the small crack formed in the cutting process of the PC plate can be gradually repaired through molecular motion, so that the PC plate can be better protected, the service life of the PC plate is prolonged, and the PC plate can still keep good performance within the range of-50 ℃ to 150 ℃;
and the added light stabilizer is an anti-UV auxiliary agent, so that the cured sealing adhesive and molecules of the PC board can be effectively prevented from being damaged by ultraviolet rays and ozone in sunlight, the board is protected, the service life of the board is prolonged, and the mechanical properties such as elasticity can be kept for a long time.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1: the special sealant for the polycarbonate product comprises the following raw materials in parts by weight:
50-60% of polyvinyl formal adhesive
4 to 5 percent of methyl tributyrinoxime silane
4 to 5 percent of vinyl tributyrinoxime silane
0.02 to 0.06 percent of tin laurate
0.3 to 0.5 percent of Y-aminopropyl triethoxysilane
3- (2-aminoethylamino) -propyltrimethoxysilane 0.1-0.3%
20 to 40 percent of polycarbonate
0.2 to 0.6 percent of cyclic polydimethylsiloxane
0.05 to 0.1 percent of light stabilizer.
In the present example, the partial physical and chemical properties of the polycarbonate particles used as the filler were as follows:
table one: partial physicochemical and mechanical properties of polycarbonate particles
The special glue for polycarbonate in the embodiment is a special glue for a PC plate, can also be used for other building bonding and sealing projects, but is not suitable for structural assembly. When the adhesive tape is used, the adhesive tape is uniformly extruded to a position to be bonded or sealed by matching with a soft adhesive gun, and the adhesive tape is completely cured.
It can be used for the waterproof and weather-resistant bonding and sealing of various PC sunlight plates, endurance plates and structural member projects; the PC board sunshine room, the rain and sun shed, the car shed, the window shed, the door arch, the door and the window are bonded and sealed with water resistance and weather resistance; PC sunlight plate, endurance plate greenhouse, swimming pool, etc. are adhered and sealed in waterproof and weather resisting mode; waterproof and weather-resistant bonding and sealing of PC board daylighting roofs and the like in public places; waterproof and weather-resistant bonding and sealing of public facility PC board car sheds, awning and the like; waterproof and weather-resistant bonding sealing of outdoor PC light diffusion cover lamps and lanterns and the like; other PC materials are bonded and sealed in a waterproof and weather-resistant manner.
The mechanical property detection of the sealant special for the polycarbonate product in the embodiment is carried out, the detection results are shown in the second table and the third table, and the detection substrates are PC plates and glass.
Table two: tensile adhesion test results
Table three: adhesion to glass of PC Board
The detection results in the second and third tables show that the sealant special for the polycarbonate product has very excellent tensile adhesion and glass adhesion and excellent mechanical properties.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. The special sealant for the polycarbonate product is characterized by comprising the following raw materials in parts by weight:
50-60% of polyvinyl formal adhesive
4 to 5 percent of methyl tributyrinoxime silane
4 to 5 percent of vinyl tributyrinoxime silane
0.02 to 0.06 percent of tin laurate
0.3 to 0.5 percent of Y-aminopropyl triethoxysilane
3- (2-aminoethylamino) -propyltrimethoxysilane 0.1-0.3%
20 to 40 percent of polycarbonate
0.2 to 0.6 percent of cyclic polydimethylsiloxane
0.05 to 0.1 percent of light stabilizer.
2. The special sealant for polycarbonate products as claimed in claim 1, wherein the method of use is as follows: and uniformly extruding the PC special glue to a position to be bonded or sealed by matching with a soft glue gun, and curing completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117262.8A CN112175550A (en) | 2020-10-19 | 2020-10-19 | Special sealant for polycarbonate products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117262.8A CN112175550A (en) | 2020-10-19 | 2020-10-19 | Special sealant for polycarbonate products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112175550A true CN112175550A (en) | 2021-01-05 |
Family
ID=73950904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011117262.8A Pending CN112175550A (en) | 2020-10-19 | 2020-10-19 | Special sealant for polycarbonate products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112175550A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242798A (en) * | 2013-04-28 | 2013-08-14 | 深圳市新亚新材料有限公司 | High-transparency single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN103305181A (en) * | 2013-05-29 | 2013-09-18 | 武汉双键开姆密封材料有限公司 | Single-component deoximation type sealing adhesive for solar module |
| CN103773308A (en) * | 2013-12-26 | 2014-05-07 | 李泽国 | Long-acting antibacterial and mildew-proof silicone adhesive and preparation method thereof |
| CN103788914A (en) * | 2013-12-26 | 2014-05-14 | 李泽国 | Anti-algae silicone adhesive and preparation method thereof |
| CN107142074A (en) * | 2017-05-09 | 2017-09-08 | 江苏天辰新材料股份有限公司 | A kind of preparation method of de-oxime type one component room temperature fluid sealant |
| CN111471414A (en) * | 2020-06-16 | 2020-07-31 | 广东快事达胶粘实业有限公司 | Special glue for single-component lens and preparation method thereof |
-
2020
- 2020-10-19 CN CN202011117262.8A patent/CN112175550A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242798A (en) * | 2013-04-28 | 2013-08-14 | 深圳市新亚新材料有限公司 | High-transparency single-component room temperature vulcanized silicone rubber and preparation method thereof |
| CN103305181A (en) * | 2013-05-29 | 2013-09-18 | 武汉双键开姆密封材料有限公司 | Single-component deoximation type sealing adhesive for solar module |
| CN103773308A (en) * | 2013-12-26 | 2014-05-07 | 李泽国 | Long-acting antibacterial and mildew-proof silicone adhesive and preparation method thereof |
| CN103788914A (en) * | 2013-12-26 | 2014-05-14 | 李泽国 | Anti-algae silicone adhesive and preparation method thereof |
| CN107142074A (en) * | 2017-05-09 | 2017-09-08 | 江苏天辰新材料股份有限公司 | A kind of preparation method of de-oxime type one component room temperature fluid sealant |
| CN111471414A (en) * | 2020-06-16 | 2020-07-31 | 广东快事达胶粘实业有限公司 | Special glue for single-component lens and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |
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| RJ01 | Rejection of invention patent application after publication |