CN103969180A - Method for testing adhesive property of silicone structure sealant for existing curtain wall - Google Patents
Method for testing adhesive property of silicone structure sealant for existing curtain wall Download PDFInfo
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- CN103969180A CN103969180A CN201310068922.1A CN201310068922A CN103969180A CN 103969180 A CN103969180 A CN 103969180A CN 201310068922 A CN201310068922 A CN 201310068922A CN 103969180 A CN103969180 A CN 103969180A
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- 239000000565 sealant Substances 0.000 title claims abstract description 67
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 62
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000032683 aging Effects 0.000 claims abstract description 53
- 230000029087 digestion Effects 0.000 claims description 51
- 239000012530 fluid Substances 0.000 claims description 27
- 238000010998 test method Methods 0.000 claims description 19
- 239000004590 silicone sealant Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 13
- 239000003292 glue Substances 0.000 description 47
- 239000011521 glass Substances 0.000 description 16
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 241000566236 Ochrotomys nuttalli Species 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- 229920000620 organic polymer Polymers 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- 150000003961 organosilicon compounds Chemical class 0.000 description 2
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- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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Abstract
The invention discloses a method for testing the adhesive property of a silicone structural sealant for an existing curtain wall, which comprises the following steps of (1) carrying out artificial accelerated aging on various samples under a light aging condition, and measuring the strength and the adhesive strength of a body; (2) carrying out statistical treatment on the body strength and the bonding strength to obtain a linear relation between the body strength and the bonding strength; (3) measuring the body strength of the existing building curtain wall silicone structure sealant to be tested; (4) and calculating according to the linear relation between the body strength and the bonding strength to obtain the bonding strength of the body at the moment. The method can effectively evaluate the safety of the existing building curtain wall silicone structure sealant.
Description
Technical field
The present invention relates to building materials, be specifically related to the adhesive property analysis test method of existing building curtain wall construction fluid sealant.
Background technology
Glass curtain wall (or claiming curtain wall) is comprised of materials such as hardware and metope plate glass, is the continuous non-bearing external enclosure structure being suspended in agent structure.Silicone structure sealant for curtain wall (hereinafter to be referred as structure glue) has connected buildings main body and decorative glass board, the expand with heat and contract with cold stress of repeated deformation of the aluminium that the deadweight of suffered extraneous wind load, glass, temperature variation can be caused and glass is delivered in building structure, is guaranteeing that glass curtain wall structure plays the important and pivotal role on safe.Therefore structure glue should have the excellent properties such as sealing structure is good, wet-heat resisting, UV resistant, resistance to ozone aging, and can have with the coated glass of aluminum alloy frame and various color and lusters good compatibility.
Silicone structure sealant is divided into two kinds of single component and bi-components.Single component structure glue is vulcanized owing to absorbing airborne moisture generation cross-linking reaction after construction, generally will emit little molecule product in sulfidation.The single component structure glue of initial application is desacetoxy type, can cause corrosion to metal, has developed dealcoholized type and ketoxime removing type in recent years for overcoming this shortcoming.Single component structure glue is because emit little molecular product while solidifying, and glue-line is prone to bubble, and impermeability is poor, i.e. easily air permeable and water vapor, and practical application is now less.Bicomponent structure glue be take organosiloxane as host, take amino containing silane as hardening agent.Mostly the modified structure glue of development in recent years is bi-component, take silicon modified organic polymer as host, and organometallics is hardening agent, has mainly improved operating performance and the external coating performance of structure glue, and has reduced costs.Method of modifying is to be mainly equal to organo-silicon compound copolymerization, blend and interpenetrating networks etc. with acrylate, polyurethane.
Yet along with the increase of service time, structure glue there will be the deteriorated of the mechanical properties such as cohesive strength and deformation performance, cause security incident and affect serviceable life of curtain wall.Because building curtain wall is applied to public building, commercial center region mostly, these regions are crowded, if plate falling from high altitude, its consequence will be catastrophic.
But, lack at present relevant appraisal procedure and technical standard, even if specification for curtain wall proposes to explicitly call for to the quantitative check of existing curtain wall, maintenance, the substantive work of glass curtain wall safety verification is still made slow progress, and even substantially cannot implement.Along with having surpassed tenure of use of structure glue in domestic many curtain wall engineerings the period of guarantee that enterprise provides, the evaluation system how stressing conditions in incorporation engineering application goes to study its failure mechanism and set up its security of effectively evaluating is to need from now on the key issue that solves.
Summary of the invention
In order to address the above problem, the inventor has carried out research with keen determination, by silicone structure sealant being carried out to the artificial accelerated aging of light and heat, obtain silicone structure sealant mechanical property with the relation curve of digestion time, found that: (1) manual simulation's light aging condition and actual aging condition approach; (2), under manual simulation's light aging condition, between the cohesive strength of silicone structure sealant and body intensity, there is linear relationship; Thus, for existing building curtain wall structural silicone fluid sealant, by its on-site sampling, measure its body intensity, can calculate its cohesive strength.
The object of the present invention is to provide following aspect:
According to a first aspect of the invention, provide a kind of adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant, the method comprises the following steps:
(1) under light aging condition, the sample of multiple silicone structure sealant is carried out to artificial accelerated aging, measure body intensity and the cohesive strength of sample under different digestion times, the length growth rate when length growth rate while optionally measuring maximum body intensity and maximum bonded intensity, length growth rate and digestion time relation curve while obtaining body intensity and the digestion time relation curve of sample, the length growth rate while obtaining the maximum body intensity of sample and digestion time relation curve, cohesive strength and digestion time relation curve and maximum bonded intensity;
(2) body intensity and cohesive strength under the different digestion times of multiple silicone structure sealant are carried out to statistical treatment, obtain the linear relationship of body intensity and cohesive strength when same digestion time, the length growth rate of length growth rate during optionally to maximum body intensity under the different digestion times of multiple silicone structure sealant during with maximum bonded intensity carries out statistical treatment, the linear relationship of the length growth rate when length growth rate while obtaining when same digestion time maximum body intensity and maximum bonded intensity;
(3), for the existing building curtain wall structural silicone fluid sealant that will test, to its on-site sampling, measure its body intensity, and optionally measure its length growth rate;
(4) for the existing building curtain wall structural silicone fluid sealant that will test, according to the linear relationship of body intensity and cohesive strength, calculate, obtain its cohesive strength now, by cohesive strength now and code requirement are compared, can learn whether this existing building curtain wall structural silicone fluid sealant intensity meets the requirements, the linear relationship of the length growth rate when length growth rate during optionally according to maximum body intensity and maximum bonded intensity, the length growth rate while obtaining maximum bonded intensity now.
According to a second aspect of the invention, provide the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above, wherein, described multiple silicone structure sealant comprises single-component silicon structure sealant and two-component structural silicone sealant.
According to a third aspect of the invention we, provide the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above, wherein, body intensity is by dumb-bell shape sheet type sample measurement, and cohesive strength is by I-shaped type sample measurement.
According to a forth aspect of the invention, provide the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above, wherein, described light aging condition is as follows: adopt the straight light tube of wavelength UVA-340nm, irradiance is 0.89W/m
2, within every 12 hours, be an experiment cycle period, comprise ultraviolet radiation 8h, wherein blackboard temperature 60 (± 3) ℃, then condensate water 4h, wherein blackboard temperature 50 (± 3) ℃.
According to a fifth aspect of the invention, provide the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above, wherein, in step (1), the artificial ageing time is the longest is 5000h.
According to a sixth aspect of the invention, the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above is provided, wherein, in step (3), the linear coefficient of body intensity and cohesive strength is 1.5-3, under same digestion time, the 1.5-3 that the body intensity of silicone structure sealant is cohesive strength doubly.
According to a seventh aspect of the invention, the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above is provided, wherein, in step (3), the linear coefficient of body intensity and cohesive strength is 1.8-2.6, under same digestion time, the 1.8-2.6 that the body intensity of silicone structure sealant is cohesive strength doubly.
According to an eighth aspect of the invention, the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant as above is provided, wherein, in step (3), the linear coefficient of length growth rate when length growth rate during maximum body intensity and maximum bonded intensity is 1.5-3.0, under identical digestion time, the 1.5-3.0 of length growth rate when length growth rate during maximum body intensity is maximum bonded intensity doubly.
According to the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant provided by the invention, by lot of experiments, determine, the artificial heat ageing of the aging ratio of artificial light more easily causes the aging of silicone structure sealant, artificial light aging condition and unaccelerated aging condition are more approaching, under artificial light aging condition, body intensity and the cohesive strength of silicone structure sealant present linear relationship, length growth rate when length growth rate during maximum body intensity and maximum bonded intensity also presents linear relationship, the body intensity recording according to the existing building curtain wall structural silicone fluid sealant of on-site sampling thus, can know its cohesive strength now, by with code requirement comparison, can learn whether it meets request for utilization.
The method according to this invention, under artificial light aging condition, body intensity and the cohesive strength of silicone structure sealant present linear relationship, length growth rate when length growth rate during maximum body intensity and maximum bonded intensity also presents linear relationship, this adhesive property for engineering site decision structure glue and section bar and glass is very significant, because for existing building curtain wall, be difficult to measure its cohesive strength and deformability, just cannot go to pass judgment on the security of its adhesive property; But the body intensity of structure glue and length growth rate are to laboratory, to be detected and to obtain by on-site sampling.The linear relationship of the mechanical property of the multi-form sample obtaining by us, can extrapolate its cohesive strength and length growth rate by bulk properties, for the evaluation of its security provides technical basis.Meanwhile, in conjunction with its on-the-spot bond area, also can obtain maximum tension load and displacement capacity that it can bear.
Accompanying drawing explanation
Fig. 1 illustrates dumbbell shape sample structure schematic diagram.
Fig. 2 illustrates I shape sample structure schematic diagram.
Fig. 3 illustrates body intensity and the digestion time curve map of 4 kinds of one-component structure glue dumbbell shape sample lights after aging.
Fig. 4 illustrates body intensity and the digestion time curve map of 4 kinds of bicomponent structural adhesive dumbbell shape sample lights after aging.
Length growth rate and digestion time curve map when Fig. 5 illustrates the maximum body intensity of 4 kinds of one-component structure glue dumbbell shape sample lights after aging.
Length growth rate and digestion time curve map when Fig. 6 illustrates the maximum body intensity of 4 kinds of bicomponent structural adhesive dumbbell shape sample lights after aging.
Fig. 7 illustrates cohesive strength and the digestion time curve map of 4 kinds of one-component structure glue I shape sample lights after aging.
Fig. 8 illustrates cohesive strength and the digestion time curve map of 4 kinds of bicomponent structural adhesive I shape sample lights after aging.
Length growth rate and digestion time curve map when Fig. 9 illustrates the maximum bonded intensity of 4 kinds of one-component structure glue I shape sample lights after aging.
Length growth rate and digestion time curve map when Figure 10 illustrates the maximum bonded intensity of 4 kinds of bicomponent structural adhesive I shape sample lights after aging.
Figure 11 illustrates 4 kinds of body intensity and digestion time curve maps after one-component structure glue dumbbell shape sample heat ageing.
Figure 12 illustrates 4 kinds of body intensity and digestion time curve maps after bicomponent structural adhesive dumbbell shape sample heat ageing.
Length growth rate and digestion time curve map when Figure 13 illustrates 4 kinds of maximum body intensity after one-component structure glue dumbbell shape sample heat ageing.
Length growth rate and digestion time curve map when Figure 14 illustrates 4 kinds of maximum body intensity after bicomponent structural adhesive dumbbell shape sample heat ageing.
Figure 15 illustrates 4 kinds of cohesive strength and digestion time curve maps after one-component structure glue I shape sample heat ageing.
Figure 16 illustrates 4 kinds of cohesive strength and digestion time curve maps after bicomponent structural adhesive I shape sample heat ageing.
Length growth rate and digestion time curve map when Figure 17 illustrates 4 kinds of maximum bonded intensity after one-component structure glue I shape sample heat ageing.
Length growth rate and digestion time curve map when Figure 18 illustrates 4 kinds of maximum bonded intensity after bicomponent structural adhesive I shape sample heat ageing.
Embodiment
Below in conjunction with embodiment, further describe the present invention, advantage and disadvantage of the present invention will be more explicit along with description.
term definition
In the present invention, term used " body intensity " refers to the ultimate tensile strength of silicone structure sealant itself.
In the present invention, term used " length growth rate during maximum body intensity " is equivalent in meaning with " body length growth rate ", refers to the length growth rate of silicone structure sealant when ultimate tensile strength.
In the present invention, term used " cohesive strength " refers to that silicone structure sealant and bonding substrates are as the maximum bonded intensity of aluminium sheet, glass etc.
In the present invention, term used " length growth rate during maximum bonded intensity " refers to the length growth rate of silicone structure sealant when maximum bonded intensity.
silicone structure sealant
In the method according to the invention, for the silicone structure sealant of artificial light burn-in test, can be any conventional silicone structure sealant, this is not particularly limited.
Silicone structure sealant is divided into two kinds of single component and bi-components.Single component structure glue is vulcanized owing to absorbing airborne moisture generation cross-linking reaction after construction, generally will emit little molecule product in sulfidation.Bicomponent structure glue be take organosiloxane as host, take amino containing silane as hardening agent.General bicomponent structure glue be take silicon modified organic polymer as host, and organometallics is hardening agent, has mainly improved operating performance and the external coating performance of structure glue, and has reduced costs.Method of modifying is to be mainly equal to organo-silicon compound copolymerization, blend and interpenetrating networks etc. with acrylate, polyurethane.
In a preferred embodiment, in order measuring accurately, for single component and two-component structural silicone sealant, all to test, and in single component structure glue, to select multiplely, in bicomponent structure glue, also select multiple.
In following test, select 4 kinds of single component structure glue and 4 kinds of bicomponent structure glue, be respectively: white clouds board SS621 (single component) structural silicone sealant for building of Baiyun Chemical Industry Co., Ltd., Guangzhou City, white clouds board SS622 (bi-component) structural silicone sealant for building, is designated as respectively 1# and 2#; The golden mouse board JS6000 silicone structure sealant (single component) of Zhijiang Organosilicon Chemical Co., Ltd., Hangzhou, golden mouse board JS8000(bi-component) silicone structure sealant, be designated as respectively 3# and 4#; Silicon treasured 999 (single component) structural silicone sealant for building of Chengdu Guibao Technology Industrial Co.,Ltd, silicon treasured 992 (bi-component) structural silicone sealant for building, is designated as respectively 5# and 6#; Magnificent silicon board China silicon 6S (single component) structural silicone sealant for building of Shanghai Hua Gui Fine Chemical Co., Ltd, magnificent silicon board China silicon 9S (bi-component) structural silicone sealant for building, is designated as respectively 7# and 8#.
sample preparation
For one-component structure glue, directly with glue rifle, structure glue being injected into a thickness is to strike off in 2mm framed, and under standard conditions, maintenance is 28 days, and structure glue is poured into the film that 2mm is thick.
For bicomponent structural adhesive, 4 kinds of structure glue, by the proportioning of two kinds of components, being weight ratio is 12 ︰ 1, weigh and fully stir, after mixing, with scraper be embedded into framed in, and strike off, under standard conditions, maintenance is 14 days.
Laboratory standard test condition (mark state) is: temperature (23 ± 2) ℃, relative humidity (50 ± 5) %.
Dumbbell shape sample: after standard conditions maintenance completes, cut dumbbell shape sample by the shape and size of the I type sample of GB/T528-2009 regulation, as shown in Figure 1, the test length of sample parallel portion is 25mm, and width is 6mm.Length growth rate while being used for measuring body intensity and maximum body intensity.
I shape sample: bonding tensile sample shape and size meet the regulation in GB16776-2005 < < structural silicone sealant for building > > 6.8.1, bonding substrates is glass plate and aluminium sheet, wherein glass for clean, without the water white transparency float glass of plated film, aluminium sheet is colorless anodizing aluminium, as shown in Figure 2, the length growth rate when measuring cohesive strength and maximum bonded intensity.Preparation method of sample is to clean aluminium sheet and glass plate with acetone, and be dried it, on non-adhesive material, two bonding substrates and two isolation cushion blocks are assembled into cavity, initial distance between two base materials is 12mm, for single component structure glue, directly with glue rifle, structure glue is injected in cavity, makes sample; For bicomponent structural adhesive, it is 12 ︰ 1 that structure glue proportioning is weight ratio, by the proportioning of two kinds of components, weighs and fully stirs, and after mixing, packs in the tubular container that connects Pneumatic glue gun, and structure glue is injected in cavity, makes sample.
artificial ageing
Artificial light aging test: with reference to ASTM G154, adopt the straight light tube of wavelength UVA-340nm, irradiance is 0.89W/m
2, within every 12 hours, be an experiment cycle period, comprise ultraviolet radiation 8h, wherein blackboard temperature 60 (± 3) ℃, then condensate water 4h, wherein blackboard temperature 50 (± 3) ℃.8 kinds of structure glue that maintenance under standard conditions is good are taken out, and every kind of structure glue is divided into each 5 groups of dumbbell shape and I shapes, every group of 4 samples, wherein 3 tests for physical property, 1 test for structural behaviour.For I shape sample, by glass one facing to fluorescent tube.Sample period is 300,1000,3000,4000,5000 hours.
Artificial thermal aging test: heat aging test chamber, oven temperature is 80 ℃, adds air blast.Maintenance is good under standard conditions structure glue sample is taken out, and every kind of structure glue is divided into each 5 groups of dumbbell shape and I shapes, corresponding 5 kinds of digestion times, every group of 4 samples, wherein 3 tests for physical property, 1 test for structural behaviour.All samples are lain in plastic pallet respectively by the trade mark, then be positioned in baking oven.Sample period is 300,500,1000,2000,5000 hours.
mechanics Performance Testing
Length growth rate when body intensity and maximum body intensity: press GB/T528-2009, middle part and two ends detect thickness with thickness indicator in test length, get the median of 3 measured values for calculating cross-sectional area, sample is clipped in to the upper of tension tester symmetrically, on lower gripper, make tension uniform and be distributed on xsect, assemble an extension measurement device, retained part is the specimen length part in Fig. 1, starting characteristics test machine, the variation of continuous monitoring test length and power in whole process of the test, test speed is 500mm/min, length growth rate while obtaining the maximum body intensity of dumbbell shape sample and maximum body intensity.3 samples of every group of test, average.
Length growth rate when cohesive strength and maximum bonded intensity: the method by GB16776-2005 regulation is carried out examination with computer, pack sample into tension tester, speed with 5mm/min is stretched to destruction by sample, the length and width of measuring each sample are high, length growth rate while obtaining the maximum bonded intensity of I shape sample and maximum bonded intensity, 3 samples of every group of test, average.
accelerated aging test interpretation of result
For 1#-8# sample, after artificial light is aging, length growth rate when length growth rate when gained body intensity and digestion time relation curve, maximum body intensity and digestion time relation curve, cohesive strength and digestion time relation curve and maximum bonded intensity and digestion time relation curve, as shown in Fig. 3-Figure 10.
For 1#-8# sample, after artificial heat ageing, length growth rate when length growth rate when gained body intensity and digestion time relation curve, maximum body intensity and digestion time relation curve, cohesive strength and digestion time relation curve and maximum bonded intensity and digestion time curve, as shown in Figure 11-Figure 18.
From Fig. 3-Figure 18, under identical digestion time, artificial light aging condition (synergy of light-heat-water) accelerates the aging of silicone structure sealant more significantly than simple thermal effect, although low than in heat ageing of the temperature in light aging process.Therefore, select artificial light aging condition as the comparison standard of the inventive method.
By the light aging experimental data to 1#-8# sample, carry out statistical treatment, find, the body intensity of dumbbell shape sample sample and the cohesive strength of I shape sample are linear, 2.6 times of left and right of body intensity and cohesive strength, length growth rate when length growth rate during the maximum body intensity of dumbbell shape sample sample and the maximum bonded intensity of I shape sample is linear, 3 times of left and right of length growth rate when length growth rate during maximum body intensity is maximum bonded intensity.
Simultaneously with heat ageing after the relation curve of mechanical property relatively can find out, light aging is greater than heat ageing to the impact of silicone structure sealant.
existing building curtain wall construction fluid sealant security performance is evaluated
(1) existing building curtain wall construction fluid sealant is carried out to on-site sampling, can choose and be subject to the more multipoint face glass of Exposure to Sunlight, along the length direction of structure glue adhesive surface, strip.During sampling, should try one's best careful, be close to glass surface or aluminium frame table face one and lancinated (cutter of trying not is back avoided the scuffing to glue face in stripping process), obtain membranaceous sample, sample is at least 1 group (5).Press the regulation of the mensuration > > of GB/T528-2009 < < vulcanized rubber or thermoplastic elastomer tensile stress-strain performance, the membranaceous sample stripping is produced to dumbbell shape sample with I type cut-off knife.On the tension tester of testing laboratory, press the tensile property of GB/T528-2009 detection architecture glue dumbbell shape sample, thereby first obtain body intensity and the length growth rate of structure glue.
(2) body intensity test being obtained obtain cohesive strength T divided by 2.6
b1, the length growth rate of dumbbell shape sample (length growth rate during maximum body intensity) is divided by 3 length growth rates (length growth rate during maximum bonded intensity) that obtain I shape sample.
(3) whether the result obtaining and standard GB16776-2005 < < structural silicone sealant for building > > and JGJ102-2003 < < Glass Curtain Wall Projects technical manual > > are required to contrast, analyzing it can also engineering demands; In conjunction with its on-the-spot bond area, can obtain the maximum tension load that it can bear.
By embodiment and specific embodiment, the present invention is had been described in detail above, but these explanations are only exemplary, scope of the present invention are not formed to any restriction.It will be understood by those skilled in the art that lower without departing from the spirit and scope of the present invention and can the details of technical solution of the present invention and form be modified or be replaced, but these modifications and replacement all fall within the scope of protection of the present invention.
Claims (8)
1. a method of testing for silicone structure sealant adhesive property for existing curtain wall, the method comprises the following steps:
(1) under light aging condition, the sample of multiple silicone structure sealant is carried out to artificial accelerated aging, measure body intensity and the cohesive strength of sample under different digestion times, the length growth rate when length growth rate while optionally measuring maximum body intensity and maximum bonded intensity, length growth rate and digestion time relation curve while obtaining body intensity and the digestion time relation curve of sample, the length growth rate while obtaining the maximum body intensity of sample and digestion time relation curve, cohesive strength and digestion time relation curve and maximum bonded intensity;
(2) body intensity and cohesive strength under the different digestion times of multiple silicone structure sealant are carried out to statistical treatment, obtain the linear relationship of body intensity and cohesive strength when same digestion time, the length growth rate of length growth rate during optionally to maximum body intensity under the different digestion times of multiple silicone structure sealant during with maximum bonded intensity carries out statistical treatment, the linear relationship of the length growth rate when length growth rate while obtaining when same digestion time maximum body intensity and maximum bonded intensity;
(3), for the existing building curtain wall structural silicone fluid sealant that will test, to its on-site sampling, measure its body intensity, and optionally measure its length growth rate;
(4) for the existing building curtain wall structural silicone fluid sealant that will test, according to the linear relationship of body intensity and cohesive strength, calculate, obtain its cohesive strength now, by cohesive strength now and code requirement are compared, can learn whether this existing building curtain wall structural silicone fluid sealant intensity meets the requirements, the linear relationship of the length growth rate when length growth rate during optionally according to maximum body intensity and maximum bonded intensity, the length growth rate while obtaining maximum bonded intensity now.
2. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, described multiple silicone structure sealant comprises single-component silicon structure sealant and two-component structural silicone sealant.
3. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, body intensity is by dumb-bell shape sheet type sample measurement, and cohesive strength is by I-shaped type sample measurement.
4. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, described light aging condition is as follows: adopt the straight light tube of wavelength UVA-340nm, irradiance is 0.89W/m
2, within every 12 hours, be an experiment cycle period, comprise ultraviolet radiation 8h, wherein blackboard temperature 60 (± 3) ℃, then condensate water 4h, wherein blackboard temperature 50 (± 3) ℃.
5. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, in step (1), the artificial ageing time is the longest is 5000h.
6. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, in step (3), the linear coefficient of body intensity and cohesive strength is 1.5-3, under same digestion time, the 1.5-3 that the body intensity of silicone structure sealant is cohesive strength doubly.
7. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, in step (3), the linear coefficient of body intensity and cohesive strength is 1.8-2.6, under same digestion time, the 1.8-2.6 that the body intensity of silicone structure sealant is cohesive strength doubly.
8. the adhesive property analysis test method of existing building curtain wall structural silicone fluid sealant according to claim 1, wherein, in step (3), the linear coefficient of length growth rate when length growth rate during maximum body intensity and maximum bonded intensity is 1.5-3.0, under identical digestion time, the 1.5-3.0 of length growth rate when length growth rate during maximum body intensity is maximum bonded intensity doubly.
Priority Applications (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237012A (en) * | 2014-09-17 | 2014-12-24 | 中国建材检验认证集团股份有限公司 | Test device and test method for building structural adhesive bonding tensile stress relaxation |
| CN107036896A (en) * | 2017-06-13 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Existing silicone sealant, structure glue tensile property assay method |
| CN108169123A (en) * | 2017-12-25 | 2018-06-15 | 湖北华强科技有限责任公司 | A kind of membrane material and rubber adhesion intensity evaluation method |
| CN108627455A (en) * | 2018-04-25 | 2018-10-09 | 郑州中原思蓝德高科股份有限公司 | A kind of test method of thermoplasticity spacer bar and outer course glue sticking performance |
| CN114354487A (en) * | 2022-01-12 | 2022-04-15 | 深圳市房屋安全和工程质量检测鉴定中心 | Method for detecting bonding performance of glass curtain wall structural adhesive |
| CN115452694A (en) * | 2022-10-12 | 2022-12-09 | 中建深圳装饰有限公司 | Method for testing influence of aging factors on glass-structural adhesive interface bonding strength |
| CN117169139A (en) * | 2023-11-02 | 2023-12-05 | 北京科技大学 | Glass curtain wall structural adhesive mechanical property identification method based on reflection hyperspectrum |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005227193A (en) * | 2004-02-16 | 2005-08-25 | Daio Paper Corp | Method for evaluating adhesive peel strength of test paper |
| JP2005274423A (en) * | 2004-03-25 | 2005-10-06 | Osaka Gas Co Ltd | Method and device for evaluating adhesion strength of coating film |
| CN101806712A (en) * | 2010-03-19 | 2010-08-18 | 厦门市建筑工程检测中心有限公司 | On-site testing method for tensile adhesive strength of existing curtain wall structural silicone sealant |
| CN201828507U (en) * | 2010-10-19 | 2011-05-11 | 郑州中原应用技术研究开发有限公司 | Mold mechanism for testing bonding performance of silicone sealant after pull-push cycle |
| CN102053062A (en) * | 2010-12-08 | 2011-05-11 | 中国建筑科学研究院 | Structural adhesive on-site detection method and device |
| CN102207437A (en) * | 2011-03-04 | 2011-10-05 | 立邦涂料（中国）有限公司 | Device for testing elastic coating and test method thereof |
| CN202041427U (en) * | 2011-03-04 | 2011-11-16 | 立邦涂料（中国）有限公司 | Elastic paint testing device |
-
2013
- 2013-03-05 CN CN201310068922.1A patent/CN103969180B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005227193A (en) * | 2004-02-16 | 2005-08-25 | Daio Paper Corp | Method for evaluating adhesive peel strength of test paper |
| JP2005274423A (en) * | 2004-03-25 | 2005-10-06 | Osaka Gas Co Ltd | Method and device for evaluating adhesion strength of coating film |
| CN101806712A (en) * | 2010-03-19 | 2010-08-18 | 厦门市建筑工程检测中心有限公司 | On-site testing method for tensile adhesive strength of existing curtain wall structural silicone sealant |
| CN201828507U (en) * | 2010-10-19 | 2011-05-11 | 郑州中原应用技术研究开发有限公司 | Mold mechanism for testing bonding performance of silicone sealant after pull-push cycle |
| CN102053062A (en) * | 2010-12-08 | 2011-05-11 | 中国建筑科学研究院 | Structural adhesive on-site detection method and device |
| CN102207437A (en) * | 2011-03-04 | 2011-10-05 | 立邦涂料（中国）有限公司 | Device for testing elastic coating and test method thereof |
| CN202041427U (en) * | 2011-03-04 | 2011-11-16 | 立邦涂料（中国）有限公司 | Elastic paint testing device |
Non-Patent Citations (4)
| Title |
|---|
| 刘盈，张晓敏: "既有玻璃幕墙粘结性的两种检测方法对比", 《工程质量》 * |
| 张冠琦，蒋金博: "既有幕墙硅酮结构密封胶性能检测方法研究", 《中国建筑防水》 * |
| 曾兵，滕晓敏: "幕墙用硅酮结构密封胶老化性能检测技术研究", 《中国建筑防水》 * |
| 武庆民，钟志红: "中空玻璃(结构)硅酮密封胶老化性能探讨", 《中国建筑防水》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237012A (en) * | 2014-09-17 | 2014-12-24 | 中国建材检验认证集团股份有限公司 | Test device and test method for building structural adhesive bonding tensile stress relaxation |
| CN107036896A (en) * | 2017-06-13 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Existing silicone sealant, structure glue tensile property assay method |
| CN108169123A (en) * | 2017-12-25 | 2018-06-15 | 湖北华强科技有限责任公司 | A kind of membrane material and rubber adhesion intensity evaluation method |
| CN108627455A (en) * | 2018-04-25 | 2018-10-09 | 郑州中原思蓝德高科股份有限公司 | A kind of test method of thermoplasticity spacer bar and outer course glue sticking performance |
| CN108627455B (en) * | 2018-04-25 | 2020-12-15 | 郑州中原思蓝德高科股份有限公司 | Method for testing bonding performance of thermoplastic spacing bar and outer channel adhesive |
| CN114354487A (en) * | 2022-01-12 | 2022-04-15 | 深圳市房屋安全和工程质量检测鉴定中心 | Method for detecting bonding performance of glass curtain wall structural adhesive |
| CN115452694A (en) * | 2022-10-12 | 2022-12-09 | 中建深圳装饰有限公司 | Method for testing influence of aging factors on glass-structural adhesive interface bonding strength |
| CN117169139A (en) * | 2023-11-02 | 2023-12-05 | 北京科技大学 | Glass curtain wall structural adhesive mechanical property identification method based on reflection hyperspectrum |
| CN117169139B (en) * | 2023-11-02 | 2024-01-26 | 北京科技大学 | Glass curtain wall structural adhesive mechanical property identification method based on reflection hyperspectrum |
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