CN108728019A - Fluid sealant for construction composition and its application - Google Patents
Fluid sealant for construction composition and its application Download PDFInfo
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- CN108728019A CN108728019A CN201810718684.7A CN201810718684A CN108728019A CN 108728019 A CN108728019 A CN 108728019A CN 201810718684 A CN201810718684 A CN 201810718684A CN 108728019 A CN108728019 A CN 108728019A
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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
- C09J127/00—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 a halogen; Adhesives based on derivatives of such polymers
- C09J127/02—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 a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J127/04—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 a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C09J127/06—Homopolymers or copolymers of vinyl chloride
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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
- 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
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/04—Antistatic
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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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Abstract
The invention discloses a kind of fluid sealant for construction composition and its applications, are related to building sealant technical field, and the composition includes following raw material:Vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin, 20-30 μm of grain size 15-30 μm of illite powder, methylisothiazolinone, grain size villus powder, triphenylmethane triisocyanate, flaxseed gum, tricresyl phosphate (butoxyethyl group) ester, dispersant FT-78, crosslinking agent, accelerating agent, antioxidant, coupling agent.The fluid sealant of the present invention prepares simple and convenient, and surface drying speed is fast, and glue-line cross-linked structure is form compact and stable, and stretch-bonded performance is good, fire-retardant high-low temperature resistant, water-proof climate resisting, heat preservation and soundproof, expelling parasite antifungi, energy-saving and environment friendly, and application scenario field is extensive, and service life is long.
Description
Technical field
The present invention relates to building sealant technical fields, and in particular to a kind of fluid sealant for construction composition and its application.
Background technology
Common building sealant is mostly polyurethane sealant and silicon rubber sealant both at home and abroad at present.Polyurethane
Fluid sealant production technology is complicated, and equipment requirement is high, and investment is big, and due to utilizing moisture-curable principle, polyurethane sealant storage
Deposit stablize it is poor, if closed slightly not tight or temperature is slightly higher, easily solidification failure.Polyurethane sealant to vinyl material such as
The common building materials bonding force such as PVC, EVA, PE is weak, and adhesive strength does not often reach requirement.In addition, due to polyurethane seal glue residua
Isocyanates it is harmful, therefore not environmentally, weatherability is also poor.Silicone rubber kinds fluid sealant has a wide range of application, but silicon rubber
Acetic acid can be released when class sealing glue solidifying, acetic acid not only has strong impulse stink, can pollute air, can also be to metal
Corrosiveness is generated, and does not have after being fully cured and holds viscous function, therefore, it is necessary to develop go out a kind of novel, environmentally friendly, property
It can excellent, comprehensive fluid sealant for construction.
The patent application of Publication No. CN107541174A discloses a kind of monocomponent polyurethane building sealant, this kind
Fluid sealant is calculated according to weight percent, including following components:Polyurethane prepolymer A and polyurethane prepolymer B totally 35~55%,
Silane coupling agent 1~3%, modified coal ash 5~10%, latent curative 0.5~0.8%, dicyclopentadiene petroleum resin 10
~20%, plasticizer 10~20%, filler 10~30%, ultra-violet absorber and stabilizer 0.1~3%.This kind of fluid sealant tool
There are good good weatherability and water proofing property, but its cementability is poor, application is affected.
The patent application for authorizing Publication No. CN102838964B, discloses a kind of High-weather-fastnespolysulfide polysulfide sealant, including
Base cream and vulcanization cream, base cream includes weight percent 30-70% liquid polysulfides glue, 20-60% fillers, 1-10% tackifier, 3-
20% plasticizer, 0.3-5% coupling agents, 0.1-2% antioxidant and 0.05-1% UV resistance agent;It includes 25-70% sulphur to vulcanize cream
Agent, 25-70% plasticizer and 0.5-5% vulcanization accelerators.This kind of fluid sealant is improved using antioxidant and UV resistance agent
The weatherability of fluid sealant, with good stability and reproducibility, but its anti-flammability is poor, application is affected.
Invention content
The purpose of the present invention is to provide a kind of fluid sealant for construction composition and its application, this kind seals plastic structure crosslinking
Stablize fine and close, high comprehensive performance.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of fluid sealant for construction composition, including following raw material by weight:
46-52 parts of vinyl chloride-acrylate copolymer;
30-40 parts of tertiary butyl phenol aldehyde tackifying resin;
8-14 parts of the illite powder of 20-30 μm of grain size;
3-5 parts of methylisothiazolinone;
7-11 parts of the villus powder of 15-30 μm of grain size;
5.5-8 parts of triphenylmethane triisocyanate;
3-5 parts of flaxseed gum;
4-6 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.8-1.2 parts of dispersant;
3-5 parts of crosslinking agent;
1-1.5 parts of accelerating agent;
1.5-2.5 parts of antioxidant;
0.4-0.6 parts of coupling agent.
Further, above-mentioned sealant composition is made of following raw material by weight:
46 parts of vinyl chloride-acrylate copolymer;
30 parts of tertiary butyl phenol aldehyde tackifying resin;
8 parts of the illite powder of 20 μm of grain size;
3 parts of methylisothiazolinone;
7 parts of the villus powder of 15 μm of grain size;
5.5 parts of triphenylmethane triisocyanate;
3 parts of flaxseed gum;
4 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.8 parts of dispersant;
3 parts of crosslinking agent;
1 part of accelerating agent;
1.5 parts of antioxidant;
0.4 part of coupling agent.
Further, above-mentioned crosslinking agent is Triallyl isocyanurate, polyethyleneglycol diacrylate according to mass ratio
(1-2):What (1-3) merging obtained.
Further, above-mentioned crosslinking agent is Triallyl isocyanurate, polyethyleneglycol diacrylate according to quality
Than 1:What 1 merging obtained.
Further, above-mentioned coupling agent is gamma-aminopropyl-triethoxy-silane, rare-earth coupling agent according to mass ratio 3:1 closes
And obtain.
Further, above-mentioned accelerating agent is tetramethyl thiourea, accelerant C hartwell B-515.71W according to mass ratio
(1-2):What (2-3) merging obtained.
Further, above-mentioned accelerating agent is tetramethyl thiourea, accelerant C hartwell B-515.71W according to mass ratio
1:What 2 merging obtained.
Further, above-mentioned antioxidant is antioxidant 1010, irgasfos 168 according to mass ratio 3:What 2 merging obtained.
Further, the preparation method of above-mentioned fluid sealant is as follows:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 8% in reaction kettle, reaction 6min is mixed under conditions of temperature is 55 DEG C, heats later
70 DEG C are warming up to, triphenylmethane triisocyanate is added and reaction 5min is mixed in accelerating agent, obtains batch mixing A;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 70 DEG C, vacuum degree is
Reaction 5min is mixed under conditions of 0.04MPa, adds tricresyl phosphate (butoxyethyl group) ester later and dispersant FT-78 is protected
Reaction 4min is mixed in pressure heat preservation, obtains mixed material B;
Step 3:Take batch mixing A and mixed material B to be added in reaction kettle jointly, first temperature be 80 DEG C, vacuum degree 0.01MPa
Under conditions of be mixed reaction 7min, add later illite powder, villus powder and coupling agent continue be mixed reaction
15min, is eventually adding antioxidant and reaction 5min is mixed in crosslinking agent.
Further, above-mentioned fluid sealant for construction composition is applied to building, the filleting of road and bridge.
The present invention has following advantageous effect:The sealant composition of the present invention passes through the ingenious selection to raw materials for production
And its inventive improvements of preparation process, vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin, illite in raw material
The collaboration of the compositions such as powder, methylisothiazolinone, triphenylmethane triisocyanate interacts, and forms three-dimensional cross-linked cause
The structure of close stabilization, has following characteristics:
(1) surface drying speed is fast, and elastic recovery is excellent, and stretch-bonded performance is good, and displacement capacity is strong, good fluidity, fracture
Elongation is big;
(2) heat resistance is good, water-proof climate resisting, and the caking property of fluid sealant is not interfered under high/low temperature and wet face state, fire-retardant
Grade is high, and flame retardant property complies fully with the requirement of FV-0 ranks;
(3) heat preservation and soundproof is good, expelling parasite antifungi, and insulate antistatic, functional;
(4) product is fine and smooth, uniform viscous body, bubble-free, caking, skinning, gelatin phenomenon, without being not easy to be dispersed to precipitate object,
It is easy to use, and nonirritant gas generates, energy-saving and environment friendly, materials compatibility can be good, and production efficiency is high, using effect
Good, application field occasion is extensive, and service life is long.
Specific implementation mode
The specific implementation mode of the present invention is further described with reference to embodiment, following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
It all raw materials in embodiment and its produces composition and can be obtained by disclosed commercially available channel;
Embodiment 1
The present embodiment is related to a kind of fluid sealant for construction composition and preparation method thereof, the fluid sealant by it is following by weight
The raw material of meter forms:
46 parts of vinyl chloride-acrylate copolymer;
30 parts of tertiary butyl phenol aldehyde tackifying resin;
8 parts of the illite powder of 20 μm of grain size;
3 parts of methylisothiazolinone;
7 parts of the villus powder of 15 μm of grain size;
5.5 parts of triphenylmethane triisocyanate;
3 parts of flaxseed gum;
4 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.8 parts of dispersant;
3 parts of crosslinking agent;
1 part of accelerating agent;
1.5 parts of antioxidant;
0.4 part of coupling agent.
The selection of crosslinking agent, coupling agent, accelerating agent, antioxidant obtains as shown in table 1 below in above-mentioned raw materials:
Table 1
The preparation method of above-mentioned fluid sealant substantially follows the steps below:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 8% in reaction kettle, reaction 6min is mixed under conditions of temperature is 55 DEG C, heats later
70 DEG C are warming up to, triphenylmethane triisocyanate is added and reaction 5min is mixed in accelerating agent, obtains batch mixing A;In the step
The speed of agitator of reaction kettle is 200r/min;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 70 DEG C, vacuum degree is
Reaction 5min is mixed under conditions of 0.04MPa, adds tricresyl phosphate (butoxyethyl group) ester later and dispersant FT-78 is protected
Reaction 4min is mixed in pressure heat preservation, obtains mixed material B;The speed of agitator of reaction kettle is 200r/min in the step;
Step 3:Take batch mixing A and mixed material B to be added in reaction kettle jointly, first temperature be 80 DEG C, vacuum degree 0.01MPa
Under conditions of be mixed reaction 7min, add later illite powder, villus powder and coupling agent continue be mixed reaction
15min, is eventually adding antioxidant and crosslinking agent is mixed and reacts 5min, and the speed of agitator of reaction kettle is in the step
300r/min。
Embodiment 2
The present embodiment is related to a kind of fluid sealant for construction composition and preparation method thereof, the fluid sealant by it is following by weight
The raw material of meter forms:
48 parts of vinyl chloride-acrylate copolymer;
34 parts of tertiary butyl phenol aldehyde tackifying resin;
10 parts of the illite powder of 20 μm of grain size;
3.5 parts of methylisothiazolinone;
8 parts of the villus powder of 15 μm of grain size;
6.5 parts of triphenylmethane triisocyanate;
3.5 parts of flaxseed gum;
4.5 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.9 parts of dispersant;
3.5 parts of crosslinking agent;
1.2 parts of accelerating agent;
1.8 parts of antioxidant;
0.45 part of coupling agent.
The selection of crosslinking agent, coupling agent, accelerating agent, antioxidant obtains as shown in table 2 below in above-mentioned raw materials:
Table 2
The preparation method of above-mentioned fluid sealant substantially follows the steps below:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 9% in reaction kettle, reaction 5.5min, Zhi Houjia are mixed under conditions of temperature is 58 DEG C
Heat is warming up to 72 DEG C, and triphenylmethane triisocyanate is added and reaction 4.5min is mixed in accelerating agent, obtains batch mixing A;The step
The speed of agitator of reaction kettle is 240r/min in rapid;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 72 DEG C, vacuum degree is
Reaction 4.5min is mixed under conditions of 0.045MPa, adds tricresyl phosphate (butoxyethyl group) ester and dispersant FT- later
Reaction 3.5min is mixed in 78 pressure-maintaining and heat-preservations, obtains mixed material B;The speed of agitator of reaction kettle is 240r/min in the step;
Step 3:Batch mixing A and mixed material B is taken to be added in reaction kettle jointly, first temperature is 82 DEG C, vacuum degree is
Reaction 6.5min is mixed under conditions of 0.015MPa, adds illite powder, villus powder and coupling agent later and continues to mix
Conjunction is stirred to react 14min, is eventually adding antioxidant and crosslinking agent is mixed and reacts 4.5min, reaction kettle in the step
Speed of agitator is 320r/min.
Embodiment 3
The present embodiment is related to a kind of fluid sealant for construction composition and preparation method thereof, the fluid sealant by it is following by weight
The raw material of meter forms:
49 parts of vinyl chloride-acrylate copolymer;
35 parts of tertiary butyl phenol aldehyde tackifying resin;
11 parts of the illite powder of 25 μm of grain size;
4 parts of methylisothiazolinone;
9 parts of the villus powder of 20 μm of grain size;
7 parts of triphenylmethane triisocyanate;
4 parts of flaxseed gum;
5 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-781 parts of dispersant;
4 parts of crosslinking agent;
1.3 parts of accelerating agent;
2 parts of antioxidant;
0.5 part of coupling agent.
The selection of crosslinking agent, coupling agent, accelerating agent, antioxidant obtains as shown in table 3 below in above-mentioned raw materials:
Table 3
The preparation method of above-mentioned fluid sealant substantially follows the steps below:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 10% in reaction kettle, reaction 5min, Zhi Houjia are mixed under conditions of temperature is 60 DEG C
Heat is warming up to 75 DEG C, and triphenylmethane triisocyanate is added and reaction 4min is mixed in accelerating agent, obtains batch mixing A;The step
The speed of agitator of middle reaction kettle is 250r/min;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 75 DEG C, vacuum degree is
Reaction 4min is mixed under conditions of 0.05MPa, adds tricresyl phosphate (butoxyethyl group) ester later and dispersant FT-78 is protected
Reaction 3min is mixed in pressure heat preservation, obtains mixed material B;The speed of agitator of reaction kettle is 250r/min in the step;
Step 3:Take batch mixing A and mixed material B to be added in reaction kettle jointly, first temperature be 85 DEG C, vacuum degree 0.02MPa
Under conditions of be mixed reaction 6min, add later illite powder, villus powder and coupling agent continue be mixed reaction
12.5min, is eventually adding antioxidant and crosslinking agent is mixed and reacts 4min, and the speed of agitator of reaction kettle is in the step
350r/min。
Embodiment 4
The present embodiment is related to a kind of fluid sealant for construction composition and preparation method thereof, the fluid sealant by it is following by weight
The raw material of meter forms:
50 parts of vinyl chloride-acrylate copolymer;
36 parts of tertiary butyl phenol aldehyde tackifying resin;
12 parts of the illite powder of 30 μm of grain size;
4.5 parts of methylisothiazolinone;
10 parts of the villus powder of 30 μm of grain size;
7.5 parts of triphenylmethane triisocyanate;
4.5 parts of flaxseed gum;
5.5 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-781.1 parts of dispersant;
4.5 parts of crosslinking agent;
1.4 parts of accelerating agent;
2.2 parts of antioxidant;
0.55 part of coupling agent.
The selection of crosslinking agent, coupling agent, accelerating agent, antioxidant obtains as shown in table 4 below in above-mentioned raw materials:
Table 4
The preparation method of above-mentioned fluid sealant substantially follows the steps below:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 11% in reaction kettle, reaction 4.5min is mixed under conditions of temperature is 62 DEG C, later
78 DEG C are heated to, triphenylmethane triisocyanate is added and reaction 3.5min is mixed in accelerating agent, obtains batch mixing A;It should
The speed of agitator of reaction kettle is 280r/min in step;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 78 DEG C, vacuum degree is
Reaction 3.5min is mixed under conditions of 0.055MPa, adds tricresyl phosphate (butoxyethyl group) ester and dispersant FT- later
Reaction 2.5min is mixed in 78 pressure-maintaining and heat-preservations, obtains mixed material B;The speed of agitator of reaction kettle is 280r/min in the step;
Step 3:Batch mixing A and mixed material B is taken to be added in reaction kettle jointly, first temperature is 88 DEG C, vacuum degree is
Reaction 5.5min is mixed under conditions of 0.025MPa, adds illite powder, villus powder and coupling agent later and continues to mix
Conjunction is stirred to react 11min, is eventually adding antioxidant and crosslinking agent is mixed and reacts 3.5min, reaction kettle in the step
Speed of agitator is 380r/min.
Embodiment 5
The present embodiment is related to a kind of fluid sealant for construction composition and preparation method thereof, the fluid sealant by it is following by weight
The raw material of meter forms:
52 parts of vinyl chloride-acrylate copolymer;
40 parts of tertiary butyl phenol aldehyde tackifying resin;
14 parts of the illite powder of 30 μm of grain size;
5 parts of methylisothiazolinone;
11 parts of the villus powder of 30 μm of grain size;
8 parts of triphenylmethane triisocyanate;
5 parts of flaxseed gum;
6 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-781.2 parts of dispersant;
5 parts of crosslinking agent;
1.5 parts of accelerating agent;
2.5 parts of antioxidant;
0.6 part of coupling agent.
The selection of crosslinking agent, coupling agent, accelerating agent, antioxidant obtains as shown in table 5 below in above-mentioned raw materials:
Table 5
The preparation method of above-mentioned fluid sealant substantially follows the steps below:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds phase
When the glycerine of the weight of material 12% in reaction kettle, reaction 4min, Zhi Houjia are mixed under conditions of temperature is 65 DEG C
Heat is warming up to 80 DEG C, and triphenylmethane triisocyanate is added and reaction 3min is mixed in accelerating agent, obtains batch mixing A;The step
The speed of agitator of middle reaction kettle is 300r/min;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 80 DEG C, vacuum degree is
Reaction 3min is mixed under conditions of 0.06MPa, adds tricresyl phosphate (butoxyethyl group) ester later and dispersant FT-78 is protected
Reaction 2min is mixed in pressure heat preservation, obtains mixed material B;The speed of agitator of reaction kettle is 300r/min in the step;
Step 3:Take batch mixing A and mixed material B to be added in reaction kettle jointly, first temperature be 90 DEG C, vacuum degree 0.03MPa
Under conditions of be mixed reaction 5min, add later illite powder, villus powder and coupling agent continue be mixed reaction
10min, is eventually adding antioxidant and crosslinking agent is mixed and reacts 3min, and the speed of agitator of reaction kettle is in the step
400r/min。
Comparative example 1
This comparative example is related to a kind of fluid sealant, relative to embodiment 1, by vinyl chloride-acrylate copolymer and tertiary butyl phenol
Two kinds of base-materials of aldehyde tackifying resin are exchanged with generating polyurethane resin, other raw materials and content and the preparation method of fluid sealant and embodiment
1 is identical.
Comparative example 2
This comparative example is related to a kind of fluid sealant, relative to embodiment 2, there is only the difference of crosslinker component, other raw materials
And content and the preparation method of fluid sealant it is same as Example 2;
The ingredient of crosslinking agent is in this comparative example:Methacrylic acid and hydroxy-ethyl acrylate, mass ratio are also 1:1.
Comparative example 3
This comparative example is related to a kind of fluid sealant, relative to embodiment 3, there is only the difference of coupling agent ingredient, other raw materials
And content and the preparation method of fluid sealant it is same as Example 3;
The ingredient of coupling agent is in this comparative example:Gamma-aminopropyl-triethoxy-silane.
Comparative example 4
This comparative example is related to a kind of fluid sealant, relative to embodiment 4, there is only the difference of accelerating agent ingredient, other raw materials
And content and the preparation method of fluid sealant it is same as Example 4;
The ingredient of accelerating agent is in this comparative example:Tetramethyl thiourea.
Comparative example 5
This comparative example is related to a kind of fluid sealant, relative to embodiment 5, there is only the difference of antioxidant ingredient, other raw materials
And content and the preparation method of fluid sealant it is same as Example 5;
The ingredient of antioxidant is in this comparative example:Antioxidant 1010.
Comparative example 6
This comparative example is related to a kind of fluid sealant, relative to embodiment 5, there is only the difference of preparation method, material composition and
Content is same as Example 5:
The fluid sealant preparation method of this comparative example is as follows:
It will be added in reaction kettle jointly except other all raw materials of crosslinking agent, temperature is 75 DEG C, vacuum degree is
Reaction 20min is mixed under conditions of 0.06MPa, crosslinking agent, the stirring of present invention kettle is added in 65s before reaction terminates
Rotating speed is 250r/min.
Comparative example 7
This comparative example is related to a kind of commercially available common fluid sealant, which be made by the raw material of following weight parts:
70 parts of base polyurethane prepolymer for use as, 30 parts of bisphenol A type epoxy resin, 10 parts of polyisobutene, 5 parts of two amido diphenyl-methane,
5 parts of m-phenylene diamine (MPD), 2 parts of 2-methylimidazole, 2 parts of dibutyl phthalate, 4 parts of calcium carbonate, 2 parts of stearic acid, 8 parts of zinc oxide,
8 parts of aluminium hydroxide, 1.5 parts of Silane coupling agent KH550,1 part of thixotropic agent, TDMD1.5 parts of accelerating agent.
Performance detection
To verify the advantageous effect of the present invention, such as the following table 6 is carried out to the fluid sealant of above-described embodiment 1-5 and comparative example 1-7
With the detection of 7 performance indicator of table, the fluid sealant of embodiment 1-5 is corresponding respectively to be named as #1-#5, the fluid sealant point of comparative example 1-7
It Dui Ying be named as #6-#12, examination criteria is with reference to national standard《GB/T24267-2009 flame retardant sealants for building》:
Table 6
Table 7
It can be obtained in conjunction with upper table 6 and table 7:
Compared to national standard:The fluid sealant of the present invention reduces 53.3-60.0% on surface drying time, on elastic restoration ratio
25.2-72.2% is improved, 187.5-200.0% is improved in tensile strength, 84.0- is improved on elongation at break
91.1%;
Compared to comparative example:The fluid sealant of the present invention reduces 12.5-55.6% on surface drying time, is carried on elastic restoration ratio
High 13.0.2-61.0% improves 43.8-200.0% in tensile strength, 19.7-72.0% is improved on elongation at break;
And it all has in other physical properties, temperature tolerance, cementability, anti-flammability etc. and is significantly promoted comprehensively,
Progress is apparent compared with prior art, and technical solution does not have apparent property.
In conjunction with beneficial effects of the present invention, applicant carries out the preparation method of part composition and fluid sealant in the present invention
It is following to illustrate:
(1) crosslinking agent:Acrylic compounds internal crosslinker is the most common one kind of high molecular material, originally applicant uses it
Single composition or composite components do not obtain desired technique effect, are being had been surprisingly found that after many experiments, triallyl isocyanide
The collaboration of two kinds of urea acid esters, polyethyleneglycol diacrylate compositions is used in combination, and can achieve the object of the present invention, and can make the present invention
Fluid sealant quickly forms bridged bond that is a large amount of and being evenly distributed, the 3 D stereo reticular structure being built into surface drying solidification process
It is form compact and stable, and then improve the strength physical performance of glue-line;If the change of the composition of crosslinking agent or/and content in the present invention,
It can cause beneficial effects of the present invention that cannot realize well.
(2) coupling agent:Gamma-aminopropyl-triethoxy-silane is that fluid sealant prepares more common a kind of silane in production
It is coupling agent, but is applied in raw materials for production system of the present invention as independent composition, and is improper, it is difficult to reaches the present invention
Purpose, subsequent applicant is dexterously by gamma-aminopropyl-triethoxy-silane, rare-earth coupling agent (3-5) in mass ratio:(1-2)
Collaboration utilizes, and unexpectedly obtains corresponding technique effect, all has in physical property, resistance to ag(e)ing etc. and significantly carries
It rises;If the change of the composition of coupling agent or/and content in the present invention, can cause beneficial effects of the present invention good
It realizes.
(3) accelerating agent:Applicant is had found by many experiments, using tetramethyl thiourea, accelerant C hartwell B-
515.71W is according to mass ratio (1-2):The raw material that (2-3) merges the obtained more suitable present invention of mixed type accelerating agent prepares body
System, the coordinated effect of tetramethyl thiourea, accelerant C hartwell B-515.71W can greatly improve reaction and promote effect
Rate is effectively improved the comprehensive performance of finished product fluid sealant;If the change of the composition of accelerating agent or/and content, can in the present invention
Cause beneficial effects of the present invention that cannot realize well.
(4) antioxidant:Likewise, the selection of antioxidant composition of the present invention is not arbitrarily to obtain or there is originally,
It is also what applicant was obtained by many experiments, in development, applicant has been surprisingly found that the collaboration of antioxidant 1010, irgasfos 168
It is used in combination, more suitable for the preparation reaction system of fluid sealant of the present invention, uses above two composition according to mass ratio (3-
5):(2-3), which merges, to be utilized, and the inoxidizability, stability and service life of glue-line can be significantly increased;If moderate resistance of the present invention
The composition of oxygen agent or/and the change of content, can cause beneficial effects of the present invention that cannot realize well.
Certainly, because of the requirement of the mentality of designing and goal of the invention of fluid sealant of the present invention, remaining of the invention component selection and
Content selection is obviously also non-obvious, and those skilled in the art combine the prior art that can readily occur in absolutely not.This
Have further embodiment in the preparation method of fluid sealant of the present invention, in conjunction with the embodiment of the present invention it can be seen that, system of the invention
Preparation Method is designed using I-III three step, and raw material is added by several times in batches, and step is simple and orderly, rather than normal using the prior art
Rule are added at one time (such as comparative example 6), and this technique is the special proportioning phase with fluid sealant raw materials for production component of the present invention
It adapts to, only uses this technique, just can guarantee the excellent specific property for the fluid sealant finally prepared.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of fluid sealant for construction composition, which is characterized in that including following raw material by weight:
46-52 parts of vinyl chloride-acrylate copolymer;
30-40 parts of tertiary butyl phenol aldehyde tackifying resin;
8-14 parts of the illite powder of 20-30 μm of grain size;
3-5 parts of methylisothiazolinone;
7-11 parts of the villus powder of 15-30 μm of grain size;
5.5-8 parts of triphenylmethane triisocyanate;
3-5 parts of flaxseed gum;
4-6 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.8-1.2 parts of dispersant;
3-5 parts of crosslinking agent;
1-1.5 parts of accelerating agent;
1.5-2.5 parts of antioxidant;
0.4-0.6 parts of coupling agent.
2. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that by it is following by weight
Raw material forms:
46 parts of vinyl chloride-acrylate copolymer;
30 parts of tertiary butyl phenol aldehyde tackifying resin;
8 parts of the illite powder of 20 μm of grain size;
3 parts of methylisothiazolinone;
7 parts of the villus powder of 15 μm of grain size;
5.5 parts of triphenylmethane triisocyanate;
3 parts of flaxseed gum;
4 parts of tricresyl phosphate (butoxyethyl group) ester;
FT-780.8 parts of dispersant;
3 parts of crosslinking agent;
1 part of accelerating agent;
1.5 parts of antioxidant;
0.4 part of coupling agent.
3. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that the crosslinking agent is three allyls
Base isocyanuric acid ester, polyethyleneglycol diacrylate are according to mass ratio (1-2):What (1-3) merging obtained.
4. a kind of fluid sealant for construction composition according to claim 3, which is characterized in that the crosslinking agent is three allyls
Base isocyanuric acid ester, polyethyleneglycol diacrylate are according to mass ratio 1:What 1 merging obtained.
5. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that the coupling agent is γ-ammonia
Propyl-triethoxysilicane, rare-earth coupling agent are according to mass ratio 3:What 1 merging obtained.
6. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that the accelerating agent is tetramethyl
Thiocarbamide, accelerant C hartwell B-515.71W are according to mass ratio (1-2):What (2-3) merging obtained.
7. a kind of fluid sealant for construction composition according to claim 6, which is characterized in that the accelerating agent is tetramethyl
Thiocarbamide, accelerant C hartwell B-515.71W are according to mass ratio 1:What 2 merging obtained.
8. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that the antioxidant is antioxidant
1010, irgasfos 168 is according to mass ratio 3:What 2 merging obtained.
9. a kind of fluid sealant for construction composition according to claim 1, which is characterized in that the preparation side of the fluid sealant
Method is as follows:
Step 1:It takes vinyl chloride-acrylate copolymer, tertiary butyl phenol aldehyde tackifying resin to be added in reaction kettle, adds and be equivalent to
Reaction 6min is mixed, later heat temperature raising in the glycerine of weight of material 8% in reaction kettle under conditions of temperature is 55 DEG C
To 70 DEG C, triphenylmethane triisocyanate is added and reaction 5min is mixed in accelerating agent, obtains batch mixing A;
Step 2:Flaxseed gum, methylisothiazolinone is taken to be added in reaction kettle, temperature is 70 DEG C, vacuum degree is
Reaction 5min is mixed under conditions of 0.04MPa, adds tricresyl phosphate (butoxyethyl group) ester later and dispersant FT-78 is protected
Reaction 4min is mixed in pressure heat preservation, obtains mixed material B;
Step 3:Batch mixing A and mixed material B is taken to be added in reaction kettle jointly, first in the item that temperature is 80 DEG C, vacuum degree is 0.01MPa
Reaction 7min is mixed under part, adds illite powder, villus powder and coupling agent later and continues that reaction is mixed
15min, is eventually adding antioxidant and reaction 5min is mixed in crosslinking agent.
10. a kind of application according to claim 1-9 any one of them fluid sealant for construction compositions, which is characterized in that institute
Fluid sealant is stated applied to building, the filleting of road and bridge.
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CN201810718684.7A CN108728019A (en) | 2018-07-03 | 2018-07-03 | Fluid sealant for construction composition and its application |
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CN201810718684.7A CN108728019A (en) | 2018-07-03 | 2018-07-03 | Fluid sealant for construction composition and its application |
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Cited By (1)
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CN113230017A (en) * | 2021-05-10 | 2021-08-10 | 上海捷儿金科技股份有限公司 | Heat-insulating pad and application thereof |
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