CN108693071A - A kind of method of quick measurement sealing material density - Google Patents
A kind of method of quick measurement sealing material density Download PDFInfo
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- CN108693071A CN108693071A CN201810803840.XA CN201810803840A CN108693071A CN 108693071 A CN108693071 A CN 108693071A CN 201810803840 A CN201810803840 A CN 201810803840A CN 108693071 A CN108693071 A CN 108693071A
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- maceration extract
- assistant carrier
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
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Abstract
The present invention discloses a kind of method of quick measurement sealing material density, belongs to the detection technique field of sealing material physical property.This method includes the following steps:Prepare maceration extract, assistant carrier and sample;Weigh the aerial quality m of assistant carrier1;Weigh quality m of the assistant carrier in maceration extract2;Weigh assistant carrier and the aerial gross mass m of sample3;Weigh the gross mass m of assistant carrier and sample in maceration extract4;Inquire the density p of maceration extractLiquid;Calculate sample density ρs;Cleaning;Duplicate measurements and calculating are twice;Seek average value three times.Utilize the present invention assay method, it is only necessary to by specific gravity balance weigh four mass parameters can quickly and accurately measure under room temperature be in sticky pasta sealing material density.The present invention has the advantages that accurate, efficient, economical, environmentally friendly, easy to operate and easy to spread.
Description
Technical field
The invention belongs to the detection technique fields to sealing material physical property, be more specifically related to it is a kind of quickly measure it is close
The method of closure material density.
Background technology
Sealing material refer to be not easy to trickle, the adhesive with certain caking property, be mostly used to fill seam, crack, connector
Equal gap locations, mainly seal, and have the effects that anti-leak, waterproof, vibration proof and sound insulation, heat-insulated, are widely used in and build
Build, communications and transportation, the sealing of electronic instrument and parts.It is bright that China has multiple relevant criterions to have the density of sealing material
It really requires, current standard " measurement of GB/T 13477.2-2002 Test method for building sealants part 2 density " is retouched
There are following shortcomings in the assay method to sealing material density stated:Such as learning cost is high, operation difficulty is big, efficiency
Low, experimental provision not easy cleaning, generate a large amount of rubbish etc..
Invention content
The purpose of the present invention be exactly for the above-mentioned prior art in the presence of shortcoming and provide and a kind of quickly measure
The method of sealing material density.It can quickly and accurately be measured under room temperature in sticky pasta using the assay method of the present invention
The density of sealing material, the present invention have the advantages that accurate, efficient, economical, environmentally friendly, easy to operate and easy to spread.
The purpose of the present invention can be realized by following technique measures:
The quick method for measuring sealing material density of the present invention includes the following steps:
A, prepare maceration extract, assistant carrier and sample:Using fresh distilled water or deionized water as maceration extract, by maceration extract
It is contained in beaker, beaker is seated on the pan straddle of specific gravity balance;Select density be more than maceration extract and not with maceration extract
The material to react is fabricated to several laminar assistant carriers(The shapes and sizes of assistant carrier can be according to specific gravity balance
Metal net basket cut, ensure that assistant carrier can be stablized and be put into Metal net basket and do not contacted with beaker);Select room temperature
Lower no skinning, without caking, uniform, sticky pasta sealing material is as sample(I.e. the present invention, which is not suitable for measuring, has gravity flow
The density of the sealing material of levelling matter);
B, m is weighed1:Assistant carrier is placed in the top tray of the solid support top surface of specific gravity balance, auxiliary is weighed and carries
The aerial quality m of body1, record m1Numerical value;
C, m is weighed2:Assistant carrier is placed on the mesh basket collet of Metal net basket, and impregnated liquid is totally submerged, weighs auxiliary
Quality m of the carrier in maceration extract2, record m2Numerical value;
D, m is weighed3:Take out assistant carrier;The maceration extract on assistant carrier surface is dried with filter paper;On assistant carrier center
Swab, and ensure that sample does not spill over the edge of assistant carrier(It avoids sample from being stained on the Metal net basket of balance, influences to test
As a result);Weigh assistant carrier and the aerial gross mass m of sample3, record m3Numerical value;
E, m is weighed4:Assistant carrier and sample are placed on the mesh basket collet of Metal net basket, and impregnated liquid is totally submerged, are weighed
Go out the gross mass m of assistant carrier and sample in maceration extract4, record m4Numerical value;
F, ρ is inquiredLiquid:The temperature t shown on thermometer is read, and inquires density p of the maceration extract at temperature tLiquid;
G, sample density ρ is calculateds:Above-mentioned each numerical value is substituted into formula, calculate
Sample density ρs;
H, it clears up:Assistant carrier and sample are taken out, is wrapped with waste paper, is finally uniformly processed;
I, duplicate measurements and calculate twice:The another maceration extract, assistant carrier and sample for taking two parts of identical materials repeats to walk at twice
Rapid B to step H, the above-mentioned each parameter value of duplicate measurements simultaneously substitute into formula and calculate corresponding sample density ρ twices;
J, above-mentioned gained sample density ρ three times is soughtsAverage value.
The surface of maceration extract is to the upper surface of assistant carrier when the heretofore described impregnated liquid of assistant carrier is totally submerged
Distance is more than 1cm.
Heretofore described assistant carrier selects any one of tinplate, copper coin or polyvinyl chloride resin sheet.
The sealing material that heretofore described sample is selected is polysulfide sealing compound, dual-component polyurethane fluid sealant or organosilicon
Any one of ketone caulking material.
In addition, specific gravity balance accuracy used in the present invention is 0.1 mg, the alleged each mass parameter number measured
The accuracy of value is 0.1mg.It for the density of each sample, is at least measured three times, and is updated to the calculating of sample density
Sample density value three times is found out in formula, takes the average value of sample density value three times as experimental result, experimental result is accurate to
0.01 g/cm3.In the calculation formula of sample densityIn each parameter meaning and list
Position is as follows:
ρs--- sample density, unit are gram per cubic centimeter(g/cm3);
m1--- the aerial quality of assistant carrier, unit are gram(g);
m2--- quality of the assistant carrier in maceration extract, unit are gram(g);
m3--- assistant carrier and the aerial gross mass of sample, unit are gram(g);
m4--- assistant carrier and gross mass of the sample in maceration extract, unit are gram(g);
ρLiquid--- density of the maceration extract at temperature t, unit are gram per cubic centimeter(g/cm3).
The design principle of the present invention is as follows:
The present invention is designed according to the formula of density and Archimedes principle.It was found from the formula of density:The density of object
Equal to the ratio of quality and volume;According to Archimedes principle:The weight that the sample immersed in maceration extract loses is equal to it
The weight of the maceration extract arranged;Meanwhile the volume of maceration extract is arranged after the aerial volume of object and its immersion maceration extract
It is equal.More specifically, by successively weighing the quality of sample to be tested in air and maceration extract, you can it is close that calculating acquires its
Degree:Because being learnt by Archimedes principle, the weight that sample to be tested loses in maceration extract is equal to the weight of its arranged maceration extract
Amount, so by successively weighing the sample to be tested of poor quality that can acquire of sample to be tested in air and maceration extract in maceration extract
The weight lost, the weight lost is equal to the weight that sample to be tested arranges maceration extract, and sample to be tested arranges the weight of maceration extract
It is equal to the volume of sample to be tested with the volume for arranging the volume of maceration extract, and arranging maceration extract equal to the density of maceration extract, waits for
The volume of test specimens is equal to the ratio of sample to be tested aerial quality and sample density again, so as to derive sample density
Calculation formula:, wherein the meaning of each parameter is as follows:
ρs--- sample density, unit are gram per cubic centimeter(g/cm3);
m1--- the aerial quality of assistant carrier, unit are gram(g);
m2--- quality of the assistant carrier in maceration extract, unit are gram(g);
m3--- assistant carrier and the aerial gross mass of sample, unit are gram(g);
m4--- assistant carrier and gross mass of the sample in maceration extract, unit are gram(g).
Since in above-mentioned calculation formula, maceration extract is a kind of liquid of known density, density of the maceration extract at temperature t
Can directly inquire can learn, and each mass parameter can directly weigh by specific gravity balance and obtain corresponding numerical value, therefore
It is in sticky only to need to weigh four mass parameters by specific gravity balance and can quickly and accurately measure under room temperature in the present invention
The density of pasta sealing material, the present invention have the advantages that accurate, efficient, economical, environmentally friendly, easy to operate and easy to spread.
The advantageous effects of the present invention are as follows:
The density under room temperature in sticky pasta sealing material can be quickly and accurately measured using the assay method of the present invention,
The present invention has the advantages that accurate, efficient, economical, environmentally friendly, easy to operate and easy to spread.
Description of the drawings
Fig. 1 is the structural schematic diagram of the specific gravity balance used in the present invention.
Serial number in figure:1, solid support, 2, beaker, 3, pan straddle, 4, Metal net basket, 4-1, mesh basket collet, 5, temperature
Meter, 6, top tray.
Specific implementation mode
The present invention is further described below in conjunction with drawings and examples:
It is now that technical parameter Unify legislation involved in the specific embodiment of the invention is as follows to avoid repeated description:This hair
The distance of the surface of maceration extract to the upper surface of assistant carrier is more than 1cm when the impregnated liquid of assistant carrier described in bright is totally submerged.
The attachment that heretofore described specific gravity balance is equipped with has:Solid support 1, beaker 2, pan straddle 3, Metal net basket 4, mesh basket collet
4-1, thermometer 5, top tray 6.Used specific gravity balance accuracy is 0.1 mg, the alleged each quality measured in the present invention
The accuracy of parameter values is 0.1mg.It for the density of each sample, is at least measured three times, and is updated to sample density
Calculation formula in find out sample density value three times, take the average value of sample density value three times as experimental result, experimental result
It is accurate to 0.01 g/cm3。
In the calculation formula of sample densityIn each parameter meaning and unit
It is as follows:
ρs--- sample density, unit are gram per cubic centimeter(g/cm3);
m1--- the aerial quality of assistant carrier, unit are gram(g);
m2--- quality of the assistant carrier in maceration extract, unit are gram(g);
m3--- assistant carrier and the aerial gross mass of sample, unit are gram(g);
m4--- assistant carrier and gross mass of the sample in maceration extract, unit are gram(g);
ρLiquid--- density of the maceration extract at temperature t, unit are gram per cubic centimeter(g/cm3).
Embodiment one
The present embodiment is the sample density for measuring polysulfide sealing compound, and the method for the present embodiment includes the following steps:
A, prepare maceration extract, assistant carrier and sample:Using deionized water as maceration extract, deionized water is contained in beaker 2
It is interior, beaker 2 is seated on the pan straddle 3 of specific gravity balance;It selects density to be more than maceration extract and does not react with maceration extract
Tinplate be fabricated to several laminar assistant carriers(The shapes and sizes of tinplate can be according to the gold of specific gravity balance
Belong to mesh basket to be cut, ensures that tinplate can be stablized and be put into Metal net basket and do not contacted with beaker);Select nothing under room temperature
Skinning, without caking, uniform, sticky pasta polysulfide sealing compound is as sample;
B, m is weighed1:It will be placed on the top tray 6 positioned at 1 top surface of solid support of specific gravity balance as the tinplate of assistant carrier
In, weigh the aerial quality m of tinplate1, record m1Numerical value;
C, m is weighed2:Tinplate is placed on the mesh basket collet 4-1 of Metal net basket 4, and is totally submerged by deionized water, is weighed
Go out the quality m of tinplate in deionized water2, record m2Numerical value;
D, m is weighed3:Take out tinplate;The deionized water on tinplate surface is dried with filter paper;In tinplate center
Upper smearing polysulfide sealing compound, and ensure that polysulfide sealing compound does not spill over the edge of tinplate(Sample is avoided to be stained with the metal of balance
On mesh basket, experimental result is influenced);Weigh tinplate and the aerial gross mass m of polysulfide sealing compound3, record m3Number
Value;
E, m is weighed4:Tinplate and polysulfide sealing compound are placed on the mesh basket collet 4-1 of Metal net basket 4, and by deionized water
It is totally submerged, weighs the gross mass m of tinplate and polysulfide sealing compound in deionized water4, record m4Numerical value;
F, ρ is inquiredLiquid:The temperature t shown on thermometer 5 is read, and inquires density p of the deionized water at temperature tLiquid;
G, the sample density ρ of polysulfide sealing compound is calculateds:Above-mentioned each numerical value is substituted into formula
, calculate the sample density ρ of polysulfide sealing compounds;
H, it clears up:Tinplate and polysulfide sealing compound are taken out, is wrapped with waste paper, is finally uniformly processed;
I, duplicate measurements and calculate twice:Two parts of deionized waters, tinplate and polysulfide sealing compound separately are taken, at twice repeatedly step
B to step H, the above-mentioned each parameter value of duplicate measurements simultaneously substitute into formula and calculate corresponding sample density ρ twices;
J, the sample density ρ of the above-mentioned polysulfide sealing compound of gained three times is soughtsAverage value, referring to table 1;
The measurement result of the sample density of 1 polysulfide sealing compound of table
。
Embodiment two
The present embodiment is the sample density for measuring dual-component polyurethane fluid sealant, and the method for the present embodiment includes the following steps:
B, prepare maceration extract, assistant carrier and sample:Using deionized water as maceration extract, deionized water is contained in beaker
(2)It is interior, by beaker(2)It is seated in the pan straddle of specific gravity balance(3)On;Select density be more than maceration extract and not with maceration extract
The copper coin to react is fabricated to several laminar assistant carriers(The shapes and sizes of copper coin can be according to the gold of specific gravity balance
Belong to mesh basket to be cut, ensures that copper coin can be stablized and be put into Metal net basket and do not contacted with beaker);Select room temperature under without skinning,
Without caking, uniform, sticky pasta dual-component polyurethane fluid sealant as sample;
B, m is weighed1:The solid support positioned at specific gravity balance will be placed on as the copper coin of assistant carrier(1)The top tray of top surface(6)
In, weigh the aerial quality m of copper coin1, record m1Numerical value;
C, m is weighed2:Copper coin is placed on Metal net basket(4)Mesh basket collet(4-1)On, and be totally submerged by deionized water, it weighs
Go out the quality m of copper coin in deionized water2, record m2Numerical value;
D, m is weighed3:Take out copper coin;The deionized water on copper coin surface is dried with filter paper;Two-component is smeared on copper coin center
Polyurethane sealant, and ensure that dual-component polyurethane fluid sealant does not spill over the edge of copper coin(Sample is avoided to be stained with the metal of balance
On mesh basket, experimental result is influenced);Weigh copper coin and the aerial gross mass m of dual-component polyurethane fluid sealant3, record m3
Numerical value;
E, m is weighed4:Copper coin and dual-component polyurethane fluid sealant are placed on Metal net basket(4)Mesh basket collet(4-1)On, and by
Deionized water is totally submerged, and weighs the gross mass m of copper coin and dual-component polyurethane fluid sealant in deionized water4, record m4
Numerical value;
F, ρ is inquiredLiquid:Read thermometer(5)The temperature t of upper display, and inquire density p of the deionized water at temperature tLiquid;
G, the sample density ρ of dual-component polyurethane fluid sealant is calculateds:Above-mentioned each numerical value is substituted into formula
, calculate the sample density ρ of dual-component polyurethane fluid sealants;
H, it clears up:Copper coin and dual-component polyurethane fluid sealant are taken out, is wrapped with waste paper, is finally uniformly processed;
I, duplicate measurements and calculate twice:Two parts of deionized waters, copper coin and dual-component polyurethane fluid sealant separately are taken, is repeated at twice
Step B to step H, the above-mentioned each parameter value of duplicate measurements simultaneously substitute into formula and calculate and correspond to dual-component polyurethane fluid sealant twice
Sample density ρs;
J, the sample density ρ of the above-mentioned dual-component polyurethane fluid sealant of gained three times is soughtsAverage value, referring to table 2;
The measurement result of the sample density of 2 dual-component polyurethane fluid sealant of table
。
Embodiment three
The present embodiment is the sample density for measuring organic silicone caulking material, and the method for the present embodiment includes the following steps:
A, prepare maceration extract, assistant carrier and sample:Using fresh distilled water as maceration extract, distilled water is contained in burning
In cup 2, beaker 2 is seated on the pan straddle 3 of specific gravity balance;It selects density to be more than maceration extract and does not occur with maceration extract
The polyvinyl chloride resin sheet of reaction is fabricated to several assistant carriers(The shapes and sizes of polyvinyl chloride resin sheet can root
Cut according to the Metal net basket of specific gravity balance, ensure polyvinyl chloride resin sheet can stablize be put into Metal net basket and not with
Beaker contacts);It selects under room temperature without skinning, without caking, uniform, sticky pasta organic silicone caulking material as sample;
B, m1 is weighed:It will be placed on positioned at 1 top surface of solid support of specific gravity balance as the polyvinyl chloride resin sheet of assistant carrier
Top tray 6 in, weigh the aerial quality m1 of polyvinyl chloride resin sheet, record the numerical value of m1;
C, m2 is weighed:Polyvinyl chloride resin sheet is placed on the mesh basket collet 4-1 of Metal net basket 4, and is distilled water and soaks completely
Not yet, quality m2 of the polyvinyl chloride resin sheet in distilled water is weighed, the numerical value of m2 is recorded;
D, m3 is weighed:Take out polyvinyl chloride resin sheet;The distilled water on polyvinyl chloride resin sheet surface is dried with filter paper;Poly-
Organic silicone caulking material is smeared on vinyl chloride resin central position, and ensures that organic silicone caulking material does not spill over polychlorostyrene
The edge of vinyl sheet(It avoids sample from being stained on the Metal net basket of balance, influences experimental result);Weigh polyvinyl chloride
Resin flake and the aerial gross mass m3 of organic silicone caulking material, record the numerical value of m3;
E, m4 is weighed:Polyvinyl chloride resin sheet and organic silicone caulking material are placed on Metal net basket(4)Mesh basket collet(4-
1)On, and be distilled water and be totally submerged, polyvinyl chloride resin sheet and organic silicone caulking material are weighed in distilled water
Gross mass m4 records the numerical value of m4;
F, ρ liquid is inquired:Read thermometer(5)The temperature t of upper display, and inquire density p liquid of the distilled water at temperature t;
G, the sample density ρ s of organic silicone caulking material are calculated:Above-mentioned each numerical value is substituted into formula
, calculate the sample density ρ s of organic silicone caulking material;
H, it clears up:Polyvinyl chloride resin sheet and organic silicone caulking material are taken out, is wrapped with waste paper, is finally uniformly processed;
I, duplicate measurements and calculate twice:Two parts of distilled water, polyvinyl chloride resin sheet and organic silicone caulking material separately are taken, point
Step B to step H is repeated twice, and the above-mentioned each parameter value of duplicate measurements simultaneously substitutes into formula and calculates corresponding sample density ρ twice
s;
J, the average value for seeking the sample density ρ s of the above-mentioned organic silicone caulking material of gained three times, referring to table 3;
The measurement result of the sample density of 3 organic silicone caulking material of table
。
Claims (4)
1. a kind of method of quick measurement sealing material density, it is characterised in that:The method includes following step:
A, prepare maceration extract, assistant carrier and sample:Using fresh distilled water or deionized water as maceration extract, by maceration extract
It is contained in beaker(2)It is interior, by beaker(2)It is seated in the pan straddle of specific gravity balance(3)On;Select density be more than maceration extract and
The material not reacted with maceration extract is fabricated to several laminar assistant carriers;Select room temperature under without skinning, without caking,
Even, sticky pasta sealing material is as sample;
B, m is weighed1:Assistant carrier is placed on the solid support positioned at specific gravity balance(1)The top tray of top surface(6)In, it weighs auxiliary
Help the aerial quality m of carrier1, record m1Numerical value;
C, m is weighed2:Assistant carrier is placed on Metal net basket(4)Mesh basket collet(4-1)On, and impregnated liquid is totally submerged, and is claimed
Measure quality m of the assistant carrier in maceration extract2, record m2Numerical value;
D, m is weighed3:Take out assistant carrier;The maceration extract on assistant carrier surface is dried with filter paper;On assistant carrier center
Swab, and ensure that sample does not spill over the edge of assistant carrier;Weigh assistant carrier and the aerial gross mass of sample
m3, record m3Numerical value;
E, m is weighed4:Assistant carrier and sample are placed on Metal net basket(4)Mesh basket collet(4-1)On, and impregnated liquid soaks completely
Not yet, the gross mass m of assistant carrier and sample in maceration extract is weighed4, record m4Numerical value;
F, ρ is inquiredLiquid:Read thermometer(5)The temperature t of upper display, and inquire density p of the maceration extract at temperature tLiquid;
G, sample density ρ is calculateds:Above-mentioned each numerical value is substituted into formula, calculate
Sample density ρs;
H, it clears up:Assistant carrier and sample are taken out, is wrapped with waste paper, is finally uniformly processed;
I, duplicate measurements and calculate twice:The another maceration extract, assistant carrier and sample for taking two parts of identical materials repeats to walk at twice
Rapid B to step H, the above-mentioned each parameter value of duplicate measurements simultaneously substitute into formula and calculate corresponding sample density ρ twices;
J, above-mentioned gained sample density ρ three times is soughtsAverage value.
2. the method for quick measurement sealing material density according to claim 1, it is characterised in that:The assistant carrier quilt
The distance of the surface of maceration extract to the upper surface of assistant carrier is more than 1cm when maceration extract is totally submerged.
3. the method for quick measurement sealing material density according to claim 1, it is characterised in that:The assistant carrier choosing
With any one of tinplate, copper coin or polyvinyl chloride resin sheet.
4. the method for quick measurement sealing material density according to claim 1, it is characterised in that:What the sample was selected
Sealing material is any one of polysulfide sealing compound, dual-component polyurethane fluid sealant or organic silicone caulking material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803840.XA CN108693071A (en) | 2018-07-20 | 2018-07-20 | A kind of method of quick measurement sealing material density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803840.XA CN108693071A (en) | 2018-07-20 | 2018-07-20 | A kind of method of quick measurement sealing material density |
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| Publication Number | Publication Date |
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| CN108693071A true CN108693071A (en) | 2018-10-23 |
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ID=63851731
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| CN201810803840.XA Pending CN108693071A (en) | 2018-07-20 | 2018-07-20 | A kind of method of quick measurement sealing material density |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827869A (en) * | 2019-03-28 | 2019-05-31 | 广州市垠瀚能源科技有限公司 | A kind of device and method measuring sticky fluid density |
| CN110793882A (en) * | 2019-11-07 | 2020-02-14 | 哈尔滨工程大学 | Experimental device and method for measuring sea ice density on site |
| CN112394005A (en) * | 2020-11-09 | 2021-02-23 | 中国空间技术研究院 | Device and method suitable for testing density of solid and liquid |
-
2018
- 2018-07-20 CN CN201810803840.XA patent/CN108693071A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827869A (en) * | 2019-03-28 | 2019-05-31 | 广州市垠瀚能源科技有限公司 | A kind of device and method measuring sticky fluid density |
| CN110793882A (en) * | 2019-11-07 | 2020-02-14 | 哈尔滨工程大学 | Experimental device and method for measuring sea ice density on site |
| CN112394005A (en) * | 2020-11-09 | 2021-02-23 | 中国空间技术研究院 | Device and method suitable for testing density of solid and liquid |
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