CN111925748B - Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate - Google Patents

Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate Download PDF

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CN111925748B
CN111925748B CN202010850301.9A CN202010850301A CN111925748B CN 111925748 B CN111925748 B CN 111925748B CN 202010850301 A CN202010850301 A CN 202010850301A CN 111925748 B CN111925748 B CN 111925748B
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silicone sealant
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auxiliary agent
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CN111925748A (en
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王有治
邹明晶
王腾腾
王昕�
王天强
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Chengdu Guibao Science & Technology Co ltd
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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
    • 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
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/44—Block-or graft-polymers containing polysiloxane sequences containing only polysiloxane sequences
    • 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
    • C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes
    • 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
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Sealing Material Composition (AREA)

Abstract

The invention discloses a waterproof functional auxiliary agent, application thereof and a silicone sealant for a heat-insulation and decoration integrated plate and a preparation method thereof, wherein the silicone sealant has excellent bonding performance for different types of heat-insulation and decoration integrated plates, and the adverse problems of water leakage and the like caused by failure of bonding between the sealant and the heat-insulation and decoration integrated plate due to long-term weathering aging are avoided. The silicone sealant comprises the following components in parts by weight: 100 parts of alpha, omega-dihydroxy polysiloxane; 70-150 parts of a filler; 3-20 parts of a waterproof functional auxiliary agent; 1-20 parts of a plasticizer; 4-10 parts of a cross-linking agent; 0.1-10 parts of a coupling agent; 0.05-5 parts of catalyst. The silicone sealant prepared by the invention has excellent ultraviolet resistance, aging resistance and high and low temperature resistance, and is convenient to construct. More importantly, the self-made waterproof auxiliary agent is newly used in the invention, and compared with the common sealant without the addition of the self-made waterproof auxiliary agent, the waterproof performance of the sealant disclosed by the patent is obviously improved.

Description

Waterproof functional auxiliary agent, application thereof and preparation method of silicone sealant for heat-insulation and decoration integrated plate
Technical Field
The invention relates to a sealant specially used for a heat-insulation and decoration integrated plate, in particular to a novel single-component room-temperature vulcanized silicone sealant for the heat-insulation and decoration integrated plate and a preparation method thereof.
Background
In recent years, with the growing building industry and the increasing market demand of building materials, the heat-insulating and decorating integrated plate is widely applied to the building industry as a novel material. The heat-insulating decorative integrated board is formed by compounding a heat-insulating material and a decorative material, is used for being attached to the outer wall surface of a building, and has heat-insulating and decorative functions. The structure mainly comprises a facing layer, an adhesive layer and a heat-insulating layer from outside to inside, and mainly relates to materials comprising calcium silicate, metal, stone, inorganic resin, EPS, XPS, PUR, rock wool and the like. When the heat-preservation decorative integrated plate is installed and used, weather-resistant sealant is needed to be used for bonding and sealing the joint of the plate and the heat-preservation decorative integrated plate, so that the effects of attractiveness, reinforcement, protection of an internal structure, prevention of moisture infiltration and the like are achieved.
The glue for the heat-preservation decorative integrated plate not only requires that the sealant has good adhesion to different types of base materials, but also is often subjected to ageing impact such as sun exposure, rain exposure and the like because the sealant is exposed outdoors for a long time, and if the sealant does not have the durable adhesion capability to the base materials, the sealant can cause sealing failure, rainwater can be immersed from an adhesion interface, and the integral functionality of a building is damaged. Therefore, the silicone sealant for the thermal insulation and decoration integrated plate must have the capability of maintaining the adhesiveness under the long-term soaking condition.
In order to ensure long-term adhesion of the colloid to the base material under the long-term soaking condition, products on the market at present mainly adopt a method of adding a special coupling agent. Japanese patent JP2009275098 discloses a vulcanizing agent component prepared by taking a reaction product of a branched chain alkyl epoxy compound and an amino alkyl alkoxy silane as a tackifier, wherein after the prepared colloid is soaked in hot water for a long time, the adhesion failure is mainly caused by inner polymerization failure, and the excellent adhesion of the prepared colloid to float glass is emphasized. Chinese patent CN104031389A discloses a novel tackifier which is a silane compound containing both amino and epoxy groups, and a preparation method of a damp-heat resistant room temperature vulcanized silicone rubber composition, wherein strength and bonding capacity of the silicone rubber prepared from the tackifier are reduced slightly after the silicone rubber is aged by damp heat. Chinese patent CN102424742A discloses a moisture-heat aging resistant two-component room temperature vulcanized silicone rubber, wherein a compound containing an epoxy group and an aminosilane coupling agent are respectively added into A, B components, and the prepared silicone rubber keeps good bonding capability under the moisture-heat condition.
In summary, although the above patents can maintain the adhesive capacity of the colloid to the substrate in the environment of soaking, etc., all the patents use specific coupling tackifying aids to ensure the adhesive capacity of the adhesive interface directly through the chemical bonding between the substrate and the colloid. Such auxiliaries are limited by the method and amount of addition of the coupling agent, and are more limited.
Chinese patent CN104513645A discloses a low moisture permeability single-component dealcoholization type room temperature vulcanized silicone rubber sealant and a preparation method thereof, a certain amount of silane modified polyisobutylene is added, the specific waterproof auxiliary agent takes polyisobutylene as a main chain, a small amount of silane is added for modification, the compatibility with the sealant main body is poor, and the mechanical property of the sealant can be influenced to a certain degree.
Disclosure of Invention
The invention provides a self-made waterproof functional auxiliary agent which is used as an auxiliary agent of silicone sealant and used for bonding and sealing the joint of a heat-insulation and decoration integrated plate, and a good effect is achieved.
The invention firstly provides a waterproof functional auxiliary agent, which has the following molecular structure:
Figure BDA0002644503480000021
wherein a + c is more than or equal to 5, 150 is more than or equal to a + b + c is more than or equal to 20, 30 is more than or equal to m, n is more than or equal to 11, R1 and R2 are one of hydrophobic groups such as vinyl, phenyl, nitro, halogen atoms, methyl, isopropyl, tert-butyl and the like, R1 and R2 can be the same or different, and R3 is hydrolyzable silane or siloxane containing methoxy, ethoxy, butanone oxime, isocyanate, amide, allyloxy and the like. Hydrolyzable silane refers to a silane capable of hydrolysis.
The waterproof functional auxiliary agent can be applied to the preparation of silicone sealant.
The invention also provides a silicone sealant for the heat-insulation and decoration integrated plate, which comprises the following components in parts by mass:
Figure BDA0002644503480000031
the waterproof functional auxiliary agent is grafted high-molecular siloxane.
Preferably, the molecular structure of the waterproof functional assistant is as follows:
Figure BDA0002644503480000032
wherein a + c is more than or equal to 5, 150 is more than or equal to a + b + c is more than or equal to 20, 30 is more than or equal to m, n is more than or equal to 11, R1 and R2 are one of hydrophobic groups such as vinyl, phenyl, nitro, halogen atoms, methyl, isopropyl, tert-butyl and the like, and R3 is hydrolyzable silane or siloxane containing methoxy, ethoxy, butanone oxime, isocyanate, amide, allyloxy and the like.
The viscosity of the alpha, omega-dihydroxy polysiloxane is between 1000 and 500000 mPas.
The filler is one or a plurality of compound of active calcium carbonate, nano calcium carbonate, light calcium carbonate, heavy calcium carbonate, precipitated white carbon black and gas phase white carbon black, the surface of which is not treated or treated by stearic acid, silanes and titanate coupling agents.
The plasticizer is one or a mixture of more than one of dimethyl silicone oil, MDT silicone oil, amino silicone oil and polyether modified silicone oil.
The cross-linking agent is one or 1-3 compositions of more than two ketoximino silanes or alkoxy silanes capable of being hydrolyzed by moisture, such as methyl tributyrinoxime silane, methyl triethoxysilane, vinyl tributyrinoxime silane, vinyl trimethoxy silane, phenyl trimethoxy silane and phenyl triethoxysilane, and includes but is not limited to the above exemplary cross-linking agents.
The coupling agent is one or a mixture of more of gamma-aminopropyltriethoxysilane, 3- (2, 3-epoxypropoxy) propyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethoxysilane, 3-aminopropyltrimethoxysilane and N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane.
The catalyst is one or more of organic tin carboxylate and chelate thereof or organic titanate and chelate thereof. Such as one of dibutyltin oxide, dimethyltin diacetate, dibutyltin diacetate, dimethyltin dibutyrate, dibutyltin dilaurate, dimethyltin dilaurate, dibutyltin dioctanoate, tetra-n-propyl titanate, tetrabutyl orthotitanate, or 1 to 3 compositions, including but not limited to the above exemplified catalysts.
The preparation method of the silicone sealant for the heat-insulation and decoration integrated plate comprises the following steps:
(1) adding alpha, omega-dihydroxy polysiloxane and filler into a kneader, and kneading for 2-3 hours under the conditions of vacuum degree of-0.08 to-0.095 MPa and temperature of 130-;
(2) transferring the base material prepared above to a high-speed disperser, adding plasticizer and crosslinking agent, and mixing at vacuum degree of-0.08 to-0.095 MPa and normal temperature for at least 20 min (preferably 3 min);
(3) and continuously adding the waterproof functional auxiliary agent, the coupling agent and the catalyst, and mixing for at least 20 minutes (preferably 3 minutes) under the vacuum degree of-0.08 to-0.095 MPa and at normal temperature to obtain a finished product.
The invention does not add specific coupling agent to improve the waterproof performance of the adhesive, but uses the self-made waterproof auxiliary agent which is not a coupling agent system and has completely different effect-taking principles, mainly shields water vapor, is not limited by the coupling agent system in use and dosage, and can be added and used with other coupling agents without interference.
The invention discloses a silicone sealant for a heat-preservation and decoration integrated board, which is used for solving the problem of adhesion to different types of base materials under severe conditions, and a self-made waterproof agent with a specific structure is added into the sealant. The waterproof agent has a large number of hydrophobic functional groups, can migrate out of the colloid in the use process, the assistant main body is siloxane with excellent compatibility with the sealant, and one end of the assistant main body has reaction capability, so that the assistant main body can be firmly locked in the colloid to prevent the assistant main body from completely seeping out and separating from the colloid. Finally, the auxiliary agent can be ensured to form a hydrophobic film on the surface of the colloid and on the outer side of the bonding interface, so that water vapor is prevented from entering the bonding interface through the colloid and the outer side of the bonding interface, and the bonding interface is prevented from being damaged by water or a medium formed by water. The auxiliary agent has the function of a plasticizer to a certain extent, and the elongation of the colloid is improved while the strength of the silicone adhesive is maintained.
Compared with the prior art, the invention has at least the following beneficial effects: the water soaking resistance is obviously improved, the elongation is improved to a certain extent, and the strength and the bonding capability are not influenced. Finally, the bonding and sealing service life of the heat-insulation and decoration integrated plates can be obviously prolonged, and the problems of failure of bonding and sealing between the heat-insulation and decoration integrated plates, even final damage and the like are avoided.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
(1) 100 parts of 20000 mPas viscosity alpha, omega-dihydroxy polydimethylsiloxane and 130 parts of activated calcium carbonate are added into a kneader and kneaded for 2.5 hours under the conditions of-0.092 MPa of vacuum degree and 130 ℃ to prepare a base material;
(2) transferring the prepared base material to a high-speed disperser, adding 20 parts of dimethyl silicone oil and 8 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature;
(3) continuously adding 5 parts of waterproof functional auxiliary agent A (note: m is 11, n is 11, R is 11 in the molecular formula of the waterproof functional auxiliary agent)1And R2Are each methyl, R3Methyl ethyl dimethoxy silicon), 1.2 portions of gamma-aminopropyl triethoxy silane coupling agent and 0.1 portion of dibutyltin dilaurate catalyst, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature to obtain the finished product.
The preparation route of the waterproof auxiliary agent A is as follows:
Figure BDA0002644503480000061
example 2
(1) 100 parts of 20000 mPas viscosity alpha, omega-dihydroxy polydimethylsiloxane and 130 parts of activated calcium carbonate are added into a kneader and kneaded for 2.5 hours under the conditions of-0.092 MPa of vacuum degree and 130 ℃ to prepare a base material;
(2) transferring the prepared base material to a high-speed disperser, adding 20 parts of dimethyl silicone oil and 8 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature;
(3) and continuously adding 10 parts of the waterproof functional additive A prepared in the example 1, 1.2 parts of gamma-aminopropyltriethoxysilane coupling agent and 0.1 part of dibutyltin dilaurate catalyst, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature to obtain a finished product.
Example 3
(1) 100 parts of 20000 mPas viscosity alpha, omega-dihydroxy polydimethylsiloxane and 130 parts of activated calcium carbonate are added into a kneader and kneaded for 2.5 hours under the conditions of-0.092 MPa of vacuum degree and 130 ℃ to prepare a base material;
(2) transferring the prepared base material to a high-speed disperser, adding 20 parts of dimethyl silicone oil and 8 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature;
(3) and continuously adding 15 parts of the waterproof functional additive A prepared in the example 1, 1.2 parts of gamma-aminopropyltriethoxysilane coupling agent and 0.1 part of dibutyltin dilaurate catalyst, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature to obtain a finished product.
Example 4
(1) 100 parts of 20000 mPas viscosity alpha, omega-dihydroxy polydimethylsiloxane and 130 parts of activated calcium carbonate are added into a kneader and kneaded for 2.5 hours under the conditions of-0.092 MPa of vacuum degree and 130 ℃ to prepare a base material;
(2) transferring the prepared base material to a high-speed disperser, adding 20 parts of dimethyl silicone oil and 8 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature;
(3) adding 15 parts of waterproof functional assistant B (m is 15, n is 11, R in the molecular formula of the waterproof functional assistant)1And R2Is methyl, R3Triethoxy silicon), 1.2 parts of gamma-aminopropyl triethoxy silane coupling agent and 0.1 part of dibutyltin dilaurate catalyst are mixed for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature, and then the finished product is obtained.
The preparation route of the waterproof auxiliary agent B is as follows:
Figure BDA0002644503480000081
comparative example 1
(1) 100 parts of 20000 mPas viscosity alpha, omega-dihydroxy polydimethylsiloxane and 130 parts of activated calcium carbonate are added into a kneader and kneaded for 2.5 hours under the conditions of-0.092 MPa of vacuum degree and 130 ℃ to prepare a base material;
(2) transferring the prepared base material to a high-speed disperser, adding 20 parts of dimethyl silicone oil and 8 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature;
(3) and continuously adding 1.2 parts of gamma-aminopropyltriethoxysilane coupling agent and 0.1 part of dibutyltin dilaurate catalyst, and mixing for 30 minutes under the conditions of vacuum degree of-0.092 MPa and normal temperature to obtain a finished product.
The samples are prepared into calcium silicate boards, aluminum materials and stone bonding modules according to the standard GB/T13477.11-2017, are maintained, and then are processed and tested according to the requirements in the table.
TABLE 1 Performance test results for each sample
Figure BDA0002644503480000091
Figure BDA0002644503480000101
Figure BDA0002644503480000111
As can be seen from the data in Table 1, the sealant produced by the method of the present invention has significantly improved bonding ability after soaking in water, i.e., excellent waterproof ability.
Although the invention has been described herein with reference to illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.

Claims (8)

1. The waterproof functional auxiliary agent is characterized in that the molecular structure is as follows:
Figure FDA0003224528780000011
wherein a + c is more than or equal to 5, 150 is more than or equal to a + b + c is more than or equal to 20, 30 is more than or equal to m, n is more than or equal to 11, R1 and R2 are hydrophobic groups, the hydrophobic groups are one of vinyl, phenyl, nitro, halogen atoms, methyl, isopropyl and tert-butyl, R3 is one of hydrolysable silane or siloxane, and the hydrolysable silane or siloxane is hydrolysable silane or siloxane with methoxy or ethoxy.
2. The use of the water repellent functional adjuvant of claim 1 in the preparation of a silicone sealant.
3. The silicone sealant for the heat-insulation and decoration integrated plate is characterized by comprising the following components in parts by mass:
Figure FDA0003224528780000012
the molecular structure of the waterproof functional auxiliary agent is as follows:
Figure FDA0003224528780000013
wherein a + c is more than or equal to 5, 150 is more than or equal to a + b + c is more than or equal to 20, 30 is more than or equal to m, n is more than or equal to 11, R1 and R2 are hydrophobic groups, the hydrophobic groups are one of vinyl, phenyl, nitro, halogen atoms, methyl, isopropyl and tert-butyl, R3 is one of hydrolysable silane or siloxane, and the hydrolysable silane or siloxane is hydrolysable silane or siloxane with methoxy or ethoxy.
4. The silicone sealant for thermal insulation decorative integrated boards as claimed in claim 3, wherein the viscosity of the α, ω -dihydroxy polysiloxane is between 1000-500000 mPas.
5. The silicone sealant for the heat-preservation and decoration integrated board as claimed in claim 3, wherein the filler is one or more of activated calcium carbonate, nano calcium carbonate, light calcium carbonate, heavy calcium carbonate, precipitated silica and fumed silica which are not treated on the surface or treated by stearic acid, silanes and titanate coupling agents.
6. The silicone sealant for thermal insulation and decoration integrated boards as claimed in claim 3, wherein the plasticizer is one or more of dimethicone, MDT silicone oil, amino silicone oil and polyether modified silicone oil.
7. The silicone sealant for thermal insulation decorative integrated boards as claimed in claim 3, wherein the cross-linking agent is one or more of ketoximosilane or alkoxysilane which can be hydrolyzed by moisture, including methyltributanone oxime silane, methyltriethoxysilane, vinyltributone oxime silane, vinyltrimethoxysilane, phenyltrimethoxysilane and phenyltriethoxysilane, or 1-3 compositions thereof; the coupling agent is one or a mixture of more of gamma-aminopropyltriethoxysilane, 3- (2, 3-epoxypropoxy) propyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethoxysilane, 3-aminopropyltrimethoxysilane and N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane; the catalyst is one or more of organic tin carboxylate and chelate thereof or organic titanate and chelate thereof.
8. The preparation method of the silicone sealant for the heat-insulating and decorative integrated plate as claimed in any one of claims 3 to 7, characterized by comprising the following steps:
(1) adding alpha, omega-dihydroxy polysiloxane and filler into a kneader, and kneading for 2-3 hours under the conditions of vacuum degree of-0.08 to-0.095 MPa and temperature of 130-;
(2) transferring the base material prepared above into a high-speed disperser, adding plasticizer and crosslinking agent, and mixing at vacuum degree of-0.08 to-0.095 MPa and normal temperature for at least 20 min;
(3) and continuously adding the waterproof functional auxiliary agent, the coupling agent and the catalyst, and mixing for at least 20 minutes under the vacuum degree of-0.08 to-0.095 MPa and at normal temperature to obtain a finished product.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607683A1 (en) * 1992-12-30 1994-07-27 Dow Corning Corporation Organohydrogenpolysiloxane crosslinking agent for silicone pressure-sensitive adhesives
CN104099058A (en) * 2013-04-03 2014-10-15 上海华硅化工新材料有限公司 Silicone sealant for thermal-insulation integrated plate and preparation method thereof
CN105295828A (en) * 2015-12-03 2016-02-03 成都硅宝科技股份有限公司 Immersion-resistant single-component deacidified organic silicon sealant composition and preparation method thereof
CN110564363A (en) * 2019-09-23 2019-12-13 广州回天新材料有限公司 low-viscosity high-heat-conductivity bonding pouring sealant and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607683A1 (en) * 1992-12-30 1994-07-27 Dow Corning Corporation Organohydrogenpolysiloxane crosslinking agent for silicone pressure-sensitive adhesives
CN104099058A (en) * 2013-04-03 2014-10-15 上海华硅化工新材料有限公司 Silicone sealant for thermal-insulation integrated plate and preparation method thereof
CN105295828A (en) * 2015-12-03 2016-02-03 成都硅宝科技股份有限公司 Immersion-resistant single-component deacidified organic silicon sealant composition and preparation method thereof
CN110564363A (en) * 2019-09-23 2019-12-13 广州回天新材料有限公司 low-viscosity high-heat-conductivity bonding pouring sealant and preparation method thereof

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