CN110132785A - A kind of adhesive or water content of coating and total volatile organism content quick determination equipment - Google Patents

A kind of adhesive or water content of coating and total volatile organism content quick determination equipment Download PDF

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Publication number
CN110132785A
CN110132785A CN201910395384.4A CN201910395384A CN110132785A CN 110132785 A CN110132785 A CN 110132785A CN 201910395384 A CN201910395384 A CN 201910395384A CN 110132785 A CN110132785 A CN 110132785A
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China
Prior art keywords
vaporising device
coating
test
drying device
vaporising
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CN201910395384.4A
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CN110132785B (en
Inventor
顾浩飞
杨丽娜
刘青
章雅玲
张恩颂
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Shenzhen Furniture Research & Development Inst
Shenzhen Said Testing Technology Co Ltd
Shenzhen Furniture Industry Association
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Shenzhen Furniture Research & Development Inst
Shenzhen Said Testing Technology Co Ltd
Shenzhen Furniture Industry Association
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Priority to CN201910395384.4A priority Critical patent/CN110132785B/en
Publication of CN110132785A publication Critical patent/CN110132785A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G01N5/045Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a kind of adhesive or water content of coating and total volatile organism content quick determination equipment, including at least one set of test access, each group of test access includes sample test channel and skip test channel, and the first vaporising device and second vaporising device are placed in the constant temperature heating device of the first set temperature when measurement;The sample test channel further includes the first connecting line, the skip test channel further includes the second connecting line, first connecting line and the second connecting line are used for after determining moisture determination condition according to the type of adhesive or coating, and the dry gas of setting flow velocity is introduced to first vaporising device and second vaporising device.Sensing equipment of the invention, continuous mode is efficient, economical and environmentally friendly, and measurement result is accurate, stablizes.

Description

A kind of adhesive or water content of coating and total volatile organism content quick determination equipment
Technical field
The present invention relates to decorating and renovating material technical field of analysis and detection, in particular to a kind of adhesive or water content of coating and Total volatile organism (Total Volatile Organic Compound, TVOC) content quick determination equipment.
Background technique
In recent years, with the rapid development of social economy, people require the finishing of office and residential location higher and higher, Therefore New Building Materials especially chemical synthesis building material is widely used.These construction materials directly or indirectly discharge respectively Kind pollutant, causes room air pollution.Wherein volatile organic matter all has poison to the nervous system and respiratory system of human body Property can cause uncomfortable, such as pathogenic building syndrome (Sick Building Syndrome, SBS).General volatile The important evaluation index that organic matter (TVOC) is polluted as indoor volatile organic compounds has been put into China's indoor air quality mark Standard, the influence that health is generated to evaluate volatile organic matter.
Moisture and total volatile organism (TVOC) content are very heavy in the coating of architectural decorative and fitting materials, adhesive The index wanted is state compulsory standard.Total volatile organism is the security parameters for needing strict control, and all products are both needed to Meet.The measurement of total volatile organism content (TVOC) is by GB 18583-2008 in decorating and renovating material adhesive at present What method as defined in middle annex F carried out;The measurement of total volatile organism (TVOC) is by GB 18582-2008 in interior wall coating What method as defined in middle Appendix B carried out;The measurement of total volatile organism (TVOC) is by GB24410-2009 in water paint What method as defined in middle appendix A carried out.
It is organic must to deduct general volatile during measuring the content of total volatile organism for these standard requirements The content of moisture in object, therefore the measurement of moisture is the key that detection total volatile organism content.
Method as defined in standard is using Karl_Fischer method and gas chromatography measurement moisture at present, and laboratory is the most normal It is Karl_Fischer method.
But existing Karl_Fischer method measurement moisture has following defect: 1, instrument price is expensive, and import karr is taken Not moisture tester price is about 150,000 yuan every;2, karl Fischer reagent need to be configured, by iodine (I2), sulfur dioxide (SO2), Pyridine (C5H5N) and methanol (CH3OH) are formulated.Wherein, pyridine (C5H5N) is in World Health Organization's international cancer research aircraft In the 2B class carcinogenic substance inventory that structure is announced, these harmful reagents can threaten to human health;3, karl Fischer reagent is matched Process complexity is set, needs to be demarcated before use, and easily fail, also needs that electrolysis electrode is cleaned and maintained after use;4, Test specimen sampling amount is too small (being less than 0.1g), huge for heterogeneous sample test error;5, the sample for that can not dissolve Test has limitation;6, Karl_Fischer method is suitable for the measurement of micro-moisture, in fact simultaneously for water paint and adhesive It is not particularly suitable.
Existing gas chromatography also has similar defect, and especially equipment (consumptive material) is at high cost, sampling amount is few, sample Need organic solvent dissolution process, complex pretreatment etc..
Therefore, existing decorating and renovating material analysis and detection technology has yet to be improved and developed.
Summary of the invention
The main object of the present invention is to provide a kind of efficient continuous mode, economy and environmental protection, and measurement result is accurate, stablizes Adhesive or water content of coating and total volatile organism content quick determination equipment.
To achieve the above object, the technical solution that embodiment of the present invention provides is: providing a kind of adhesive or coating water Point and total volatile organism content quick determination equipment, including at least one set of test access, each group of test access packet are set Sample test channel and skip test channel are included, which includes the first vaporising device and in communication suction The first drying device of moisture is received, which includes the second vaporising device and only absorption moisture in communication Second drying device;
First vaporising device includes the room of the adhesive or coating test sample for storing setting quality, this second Vaporising device structure is identical as first vaporising device, and first vaporising device and second vaporising device are placed on when measurement In the constant temperature heating device of first set temperature;
The sample test channel further includes the first connection for being connected to first content measuring device and the first drying device Pipeline, the skip test channel further include the second connecting tube for being connected to second content measuring device and the second drying device Road, first connecting line and the second connecting line be used to according to the type of adhesive or coating determine moisture determination condition, to First vaporising device and second vaporising device are passed through the dry gas of setting flow velocity.
In order to realize that multiple groups test access works at the same time, which connects each test access by valve.
Preferably, first vaporising device in the sample test channel is connected to dry gas source, and first vaporising device addition is surveyed Test agent, the desiccant of first drying device filling activation;Second vaporising device in the skip test channel is connected to the drying Gas source, second vaporising device do not add test sample, the desiccant of second drying device filling activation.
When it is implemented, first vaporising device and the second vaporising device structure are identical, including for storing setting matter The adhesive of amount or the room of coating test sample, the room include the first air inlet and the first gas outlet.
In order to keep the constant weight of vaporising device, first air inlet and of first vaporising device and the second vaporising device One gas outlet configures the evaporation bottle stopper that can be retracted.
Wherein, the first drying device of this absorption moisture and the second drying device structure are identical, including containing cavities Room, the storage chamber connect the second air inlet, the second gas outlet and the charging door for being packed into activated desiccant.
In order to keep the constant weight of drying device, the second air inlet of first drying device and second drying device, Second gas outlet and charging door configure the drying bottle stopper that can be retracted.
Further, in measurement, the charging door is by the drying bottle for first drying device and second drying device Mineral wool is arranged at the second air inlet of first drying device and the second drying device, the second gas outlet position in plug sealing Filter layer.
Preferably, first connecting line and second connecting line use silicone tube or butyl sebific duct.
When a test access is arranged, which includes the first connecting tube and the second connecting tube, this second Connecting line includes third connecting tube and the 4th connecting tube, and the output of the valve is connected to first connecting tube and third connecting tube, First connecting tube is connected to the valve and first vaporising device, second connecting tube be connected to first vaporising device and this first Drying device;The third connecting tube is connected to the valve and second vaporising device, and the 4th connecting tube is connected to the second evaporation dress It sets and the valve is connected to by flowmeter with second drying device, the drying gas source.
The beneficial effect of embodiment of the present invention is: the adhesive or water content of coating and total volatile organism of the present embodiment Content quick determination equipment, by establishing the experiment of test sample moisture evaporation and air moisture evaporation in same test access Experiment determines the content of moisture in the same space of identical vaporising device by the experiment of air moisture evaporation;And pass through test specimens The evaporation experiment of product, measurement are packed into mass change of first vaporising device before and after experiment of test sample and subtract test sample In moisture content can deduce out the exact level of total volatile organism.
The adhesive or water content of coating and total volatile organism content quick determination equipment of the present embodiment, continuous mode are high Effect, economic, convenient and environmental protection, measurement result is accurate, stablizes, reagent consumptive material high recycling rate.The air moisture content of embodiment High-temperature baking process of the evaporation experiment before carrying out total volatile organism assay passes through the first drying device of measurement and the The mass change of two drying devices can come out determination of moisture, and determination of moisture is without being additionally carried out test;The present embodiment Sensing equipment desiccant, silicone tube evaporates bottle stopper, and the consumables costs such as dry bottle stopper, mineral wool are cheap, reusable, nitrogen Cost is relatively low for gas consumption material;The sensing equipment test sample moisture evaporation of the present embodiment is tested and air moisture evaporation experimentation It is simple to operate, it is not necessarily to standardizing reagent, is not necessarily to sample dissolution;The sensing equipment and Karl_Fischer method and gas phase of the present embodiment Chromatography is compared, and accuracy is higher;The sensing equipment of the present embodiment eliminates sampling since the sampling amount of test sample is big Amount problem bring error, testing result have good stability;The sensing equipment experimentation of the present embodiment, which does not use, appoints What organic reagent and other harmful reagent consumptive materials, will not threaten to environmental and human health impacts;The sensing equipment of the present embodiment Reagent consumptive material has reusable performance, reduces discharge, provides sustainability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the adhesive or water content of coating and total volatile organism content quick determination method of the embodiment of the present invention Main flow schematic diagram;
Fig. 2 is the kind adhesive or water content of coating and total volatile organism content quick determination equipment of the embodiment of the present invention An example structure schematic diagram;
Fig. 3 is the kind adhesive or water content of coating and total volatile organism content quick determination equipment of the embodiment of the present invention Another embodiment structural schematic diagram;
Fig. 4 sets for the adhesive or water content of coating and total volatile organism content quick determination equipment of the embodiment of the present invention The structural schematic diagram of one group of test access of standby setting;
Fig. 5 is the adhesive or water content of coating and total volatile organism content quick determination equipment of the embodiment of the present invention The three-dimensional structure diagram of first vaporising device and the second vaporising device;And
Fig. 6 is the adhesive or water content of coating and total volatile organism content quick determination equipment of the embodiment of the present invention The three-dimensional structure diagram of first drying device and the second drying device.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention, Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship, Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution Conjunction is not present, also not the present invention claims protection scope within.
Adhesive or water content of coating and total volatile organism content quick determination equipment of the invention, by direct drying method And desiccant, 3A zeolite molecular sieve, water absorption character combine, and calculates moisture moisture content by of poor quality before and after the test of desiccant (Η), while subtracting the content (ω) that sample moisture determines total volatile organism (TVOC) again.
The adhesive or water content of coating and total volatile organism content quick determination equipment of the present embodiment, by same The experiment of test sample moisture evaporation and blank control test are established in test access, and identical steaming is determined by blank control test The content of moisture in the same space of transmitting apparatus;And by the evaporation experiment of test sample, measurement is packed into the first of test sample Vaporising device is in the mass change before and after experiment and subtracts the moisture content in test sample and can deduce out total volatile organism Exact level.
The adhesive or water content of coating and total volatile organism content quick determination equipment of the present embodiment, setting at least one Group test access, each group of test access includes sample test channel and skip test channel, which includes the First drying device of one vaporising device and in communication absorption moisture, the skip test channel include the second vaporising device And the second drying device for only absorbing moisture in communication.
Experimental program is that suitable adhesive or coating test sample are placed in the first vaporising device, also known as in evaporative flask, It is placed in the high-temperature heating equipment of the first set temperature, connection only absorbs the first drying device 14 of water, also known as drying bottle.According to The type of adhesive or coating determines determination condition, is continually fed into dry gas, such as high pure nitrogen purging, advises in determination condition In the fixed time, the moisture content and total volatile substance content of adhesive or coating are measured respectively, it will be understood that total volatilization Substance includes always sending out organic matter and moisture.Total volatile substance content of test sample deducts the moisture content (Η) of wherein moisture, It subtracts sample moisture and calculates to obtain the content (ω) of total volatile organism (TVOC) in adhesive.
Always volatile substance refers under prescribed test conditions, all substances (moisture content) that can be volatilized.General volatile Organic matter: under prescribed test conditions, all organic compounds that can be volatilized are typically referred in 101.3kPa normal atmosphere Pressure, any initial boiling point are less than or equal to 250 DEG C of organic compound, are indicated with TVOC.
The adhesive or water content of coating and total volatile organism content quick determination method of the present embodiment, continuous mode are high Effect, economic, convenient and environmental protection, measurement result is accurate, stablizes, reagent consumptive material high recycling rate.
Adhesive or water content of coating and total volatile organism content quick determination method introduced below, this method is for managing Solve the experimental principle and process of equipment.
This method is illustrated by taking a test access as an example, as shown in Figure 4.
As shown in Fig. 2 and Fig. 4, in order to guarantee the constant weight of device for determinating moisture, each test access is gone back before test Include:
First vaporising device 11 and second vaporising device 12 are put into the constant temperature heating device of third set temperature To constant weight, drying process front and back is of poor quality to be not more than 0.3 milligram, records quality before the experiment of first vaporising device 11 for middle drying And quality before the experiment of second vaporising device 12.
Referring to FIG. 1, the adhesive or water content of coating and total volatile organism content quick determination method of the present embodiment, The following steps are included:
Step 101: channel, the sample test channel include the first vaporising device 11 and in communication absorption moisture First drying device 14, the skip test channel include the second of the second vaporising device 12 and only absorption moisture in communication Drying device 15;
Step 102: sky blows dry gas in the sample test channel and skip test channel, hollow with passing away Air water point;
Step 103: each test access in test, by the adhesive for setting quality or coating test sample be placed in this One vaporising device 11, and be connected on the sample test channel;
Step 104: to first vaporising device and second vaporising device closing heating;Step 105: when heating, root Determination condition is determined according to the type of adhesive or coating, is passed through and is set to first vaporising device 11 and second vaporising device 12 The dry gas of constant current speed, such as high pure nitrogen or the dry gas are the air by being dried, and air moisture content is not Greater than 0.01%;And
Step 106: being tested according to the mass change of first drying device 14 test front and back and the second drying device 15 The mass change of front and back measures moisture content (Η) in adhesive or coating;
Step 107: sample moisture being subtracted according to mass change of first vaporising device 11 after test sample is added and is surveyed Total volatile substance content (ω) in the fixed adhesive or coating.
Wherein, to first vaporising device and second vaporising device closing heating the step of further include:
First vaporising device and second vaporising device are put into the constant temperature heating device of the first set temperature;
The dry gas being passed through to the sample test channel and skip test channel, such as high pure nitrogen flow velocity basic one It causes.
For the different determination condition of different test samples, according to the heating device of different the present embodiment of test sample Mode is different.
As shown in Fig. 2, it is directed to same test sample, parallel multiplex sample test channel in the heating device 3, for example be arranged Three tunnels sample test channel, to be completed at the same time the measurement experiment for detecting multiple test samples.
As shown in figure 3, for different test temperatures test sample, multiple groups test access is set, and every group of test is logical Road is tested in corresponding heating device, such as the first test access 1 and the second test access 2, to be completed at the same time difference The measurement experiment of type test sample.
According to different measure objects, which determines determination condition are as follows:
When the adhesive or coating are amino system resin adhesive, which includes the first set temperature 110 ± 2 DEG C, test period 200 ± 5 minutes;
When the adhesive or coating are synvaren, which includes 140 ± 2 DEG C of the first set temperature, Test period 80 ± 2 minutes;
When the adhesive or coating are other adhesive, which includes 110 ± 2 DEG C of the first set temperature, test Time 200 ± 5 minutes;
When the adhesive or coating are coating, which includes 110 ± 2 DEG C of the first set temperature, test period 200 ± 5 minutes.
When it is implemented, in the drying for being passed through setting flow velocity to first vaporising device 11 and second vaporising device 12 In the step of gas such as high pure nitrogen,
Ensure that the nitrogen flow rate of the test access of each shunting is stablized in 500 ± 50 ml/mins;
The nitrogen overall flow rate of the drying gas source 6 is the sum of the nitrogen flow rate of test access of all shuntings.
In a particular embodiment, first vaporising device 11 in the sample test channel is connected to dry gas source 6, first evaporation Device 11 adds test sample, which loads desiccant;Second vaporising device 12 in the skip test channel It is connected to the drying gas source 6, which does not add test sample, which loads desiccant.
The drying gas source 6 connects each test access by valve, and the valve quantity is identical as TCH test channel quantity.
Specific experiment introduction:
1, constant weight is handled:
Constant weight processing is directed to first vaporising device 11 and second vaporising device 12, that is, evaporative flask.By this first Vaporising device 11 and second vaporising device 12, which are put into the constant temperature heating device of third set temperature, to be dried to constant weight, dry It is of poor quality before and after technique to be not more than 0.3 milligram, record quality and the second evaporation dress before the experiment of first vaporising device 11 Quality before 12 experiment is set, is put into drier stand-by.In the present embodiment, which is 105 DEG C.
2, the weighing of test sample:
Specific embodiment: after test sample is sufficiently stirred or is shaken up, 1.5-2.0 grams is accurately weighed in the of prior constant weight In one vaporising device 11, first vaporising device 11 is rotated, test sample is made to be laid in 11 inner wall of the first vaporising device as far as possible, is stood It is i.e. with evaporation bottle stopper that the first air inlet of first vaporising device 11 and the sealing of the first gas outlet both ends is spare.Second evaporation Test sample is not added in device 12, is used for blank control test.
3, desiccant activates:
The desiccant activation process includes:
Use 3A zeolite molecular sieve as desiccant;
The 3A zeolite molecular sieve application Muffle furnace is toasted and is activated, baking temperature is 350 DEG C -400 DEG C, in an atmospheric pressure Lower baking 8 hours;
Or using vacuum pump to Muffle furnace vacuum suction, baking temperature is 150 DEG C, and it is small to toast 5 at one atm When;And
3A zeolite molecular sieve after activation is cooled to 200 DEG C or so in air, is immediately transferred into drier cooling guarantor It deposits spare.
In the preferred embodiment, sky should be prevented using dry nitrogen protection during the cooling and preservation of desiccant Steam is adsorbed in gas.The suggestion of 3A zeolite molecular sieve is used being sealed in 6 months after activation.
4, the preparation of drying bottle:
First drying device 14 and second drying device 15 are put into the constant temperature heating device of the second set temperature To constant weight, drying process front and back is of poor quality to be not more than 0.3 milligram for middle drying;
A small amount of glass is filled at the air inlet and air outlet of first drying device 14 and second drying device 15 Cotton fills the desiccant of activated step process to first drying device 14 and second drying device 15;
Three openings of first drying device 14 and second drying device 15 are sealed with dry bottle stopper, together with this Dry bottle stopper is weighed together;And
The constant weight quality of first drying device 14 and the constant weight quality of second drying device 15 are recorded, is accurate to 0.1 milligram.
Specific embodiment: by first drying device 14 and second drying device 15 after drying to constant weight, before guarantee It is of poor quality twice afterwards to be not more than 1 milligram.Number A, B respectively, in first drying device 14 and second drying device 15 A small amount of mineral wool is filled at second air inlet and the second gas outlet as mineral wool filter layer 18.Then, in first drying Fill activated processed desiccant in device 14 and second drying device 15, at once with the dry bottle stopper of glue by this first Second air inlet of drying device 14 and second drying device 15, the second gas outlet and charging door 143 seal, with dry Bottle stopper is weighed together, records quality respectively.
5, detection process
Before being tested, by Rapid measuring embodiment as shown in Figure 4, using a test access, including sample TCH test channel and skip test channel.It is connected with silicone tube or butyl sebific duct, is opened in the case where not accessing evaporative flask formerly Dry gas source 6.The nitrogen overall flow rate for controlling dry gas source 6 is 2000 ± 100 ml/mins, at this time the sky of each TCH test channel About 500 ml/min of gas velocity, utilizable flow calibrator are calibrated, and sky is blown 3 minutes, to blow away the moisture in TCH test channel.
Then, evaporative flask first vaporising device 11 and second vaporising device 12 are put into high-temperature heating equipment, It is connect as shown in Figure 4 with silicone tube one end with dry gas source 6, the other end and first vaporising device 11 and second evaporation fill 12 connections are set, while the dry bottle stopper of second gas outlet of first drying device 14 and second drying device 15 is opened, Whole installation process should not close the pure nitrogen gas of the drying gas source 6, after Rapid measuring connection is intact, adjust nitrogen overall flow rate For 2000 ± 100 ml/mins, heating device temperature and test period are controlled by aforementioned defined determination condition.
In order to guarantee that the variation of experiment front and back undopes other factors, in off-test, by first vaporising device 11 with And second vaporising device 12 takes out from the heating device;
The evaporation bottle stopper used with original package seals first vaporising device 11, is put into the drier and claims after cooling After test with the gross mass of test sample;
Meanwhile being sealed first drying device 14 and second drying device 15 using the drying bottle stopper 145, and point Gross mass after must also known as testing with desiccant.
6, result calculates
In result calculating, the moisture content of the adhesive or coating is calculated by formula (1):
The moisture content of Η --- adhesive or coating, it is (%) expressed as a percentage;
The quality of M --- test sample, unit are gram (g);
mA--- the gross mass of first drying device 14 and desiccant after test, unit are gram (g);
mA0--- the gross mass of first drying device 14 and desiccant before testing, unit are gram (g);
mB--- the gross mass of second drying device 15 and desiccant after test, unit are gram (g);
mB0--- the gross mass of second drying device 15 and desiccant before testing, unit are gram (g);
Total volatile organism content is calculated by formula (2) in the adhesive:
The total volatile organism content of ω --- adhesive or coating, unit are gram per liter (g/L);
MA0--- the quality of first vaporising device 11 before testing, unit are gram (g);
The quality of M --- test sample, unit are gram (g);
MA--- test sample and the gross mass of first vaporising device 11 after test, unit are gram (g);
The moisture content of Η --- adhesive or coating, it is (%) expressed as a percentage;
The density of ρ --- test sample, unit are gram (g/cm3) per cubic centimeter.
Specific embodiment
Fig. 3 to Fig. 6 is please referred to, the present embodiment is related to adhesive or water content of coating and total volatile organism content is quickly surveyed Locking equipment.
As shown in Fig. 2, being directed to same test sample, which includes one group of test access of setting.The heating Parallel multiplex sample test channel in device 3, for example three tunnel sample test channels are set, to be completed at the same time the multiple test specimens of detection The measurement experiment of product.First sample test channel includes the first vaporising device 11 and the first drying device 17.Second sample is surveyed It pings including the first vaporising device 12 and the first drying device 18.Third sample test channel includes the first vaporising device 13 And first drying device 19.The skip test channel includes the second vaporising device 26 and the second drying device 27.
The Rapid measuring includes that at least one set of test access is arranged.In embodiment illustrated in fig. 3, Rapid measuring packet Two groups of test access are included, respectively the first test access 1 and the second test access 2 are to be completed at the same time different type test sample Measurement experiment.First test access 1 includes that the sample being made of the first vaporising device 11 and the first drying device 14 is surveyed It pings, including the skip test channel being made of the second vaporising device 12 and the second drying device 15.The first evaporation dress Set 11 and second vaporising device 12 complete detection process in heating device 5.Second test access 2 includes by the first evaporation The sample test channel of device 21 and the first drying device 24 composition, including by the second vaporising device 22 and the second dry dress Set the skip test channel of 25 compositions.First vaporising device 21 and the second vaporising device 12 complete inspection in heating device 7 Survey process.
In embodiment illustrated in fig. 4, Rapid measuring includes a test access.
Each group of test access includes sample test channel, skip test channel and heating device.Embodiment illustrated in fig. 4 In, sample test channel includes the first drying device 14 of the first vaporising device 11 and in communication absorption moisture.The sky White TCH test channel includes the second vaporising device 12 and the second drying device 15 for only absorbing moisture in communication.
First vaporising device 11 includes the room of the adhesive or coating test sample 19 for storing setting quality.It should Room includes the first air inlet 112 and the first gas outlet 113.
Second vaporising device, 12 structure is identical as first vaporising device 11, when measurement first vaporising device 11 and Second vaporising device 12 is placed in the constant temperature heating device 5 of the first set temperature.
The sample test channel further includes be connected to first content measuring device 11 and the first drying device 14 first Connecting line.The skip test channel further includes be connected to second content measuring device 12 and the second drying device 15 second Connecting line.First connecting line and be the second connecting line for determining measurement strip according to the type of adhesive or coating After part, the dry gas of setting flow velocity, such as High Purity Nitrogen are passed through to first vaporising device 11 and second vaporising device 12 Gas.
As shown in figure 3, the drying gas source 6 passes through valve, such as valve in order to realize that multiple groups test access works at the same time 16, each test access is connected, the valve quantity is identical as TCH test channel quantity.
First vaporising device 11 in the sample test channel is connected to dry gas source 6, first vaporising device 11 addition test Sample 19, the desiccant of first drying device 14 filling activation;Second vaporising device 12 connection in the skip test channel should Dry gas source 6, second vaporising device 12 do not add test sample 19, the desiccant of second drying device 15 filling activation.
In order to keep the constant weight of vaporising device, first air inlet of first vaporising device 11 and the second vaporising device 12 112 and first gas outlet 113 configure the evaporation bottle stopper that can retract.
Wherein, the first drying device 14 of this absorption moisture and 15 structure of the second drying device are identical, including receive Receive chamber 141, which connects the second air inlet 142, the second gas outlet 144 and for being packed into activated desiccant Charging door 143.
In order to keep the constant weight of drying device, second air inlet of first drying device 14 and second drying device 15 The 142, second gas outlet 144 of mouth and charging door 143 configure the drying bottle stopper 145 that can be retracted.
In measurement, the charging door 143 is by the drying bottle stopper for first drying device 14 and second drying device 15 Glass is arranged at the second air inlet of first drying device 14 and the second drying device 15, the second gas outlet position in 145 sealings Glass cotton filter layer 18.
First connecting line and second connecting line use silicone tube or butyl sebific duct.
With continued reference to FIG. 4, when a test access is arranged, first connecting line include the first connecting tube 131 with Second connecting tube 133, second connecting line include third connecting tube 132 and the 4th connecting tube 134.The output of the valve 16 connects Lead to first connecting tube 131 and third connecting tube 132.First connecting tube 131 is connected to the valve 16 and first vaporising device 11, which is connected to first vaporising device 11 and first drying device 14.The third connecting tube 132 connection The valve 16 and second vaporising device 12, the 4th connecting tube 134 are connected to second vaporising device 12 and the second dry dress 15 are set, which is connected to the valve 16 by flowmeter 61.
In the present embodiment, as the first vaporising device 11 and second vaporising device 12 of evaporative flask, as drying bottle First drying device 14 and the second drying device 15, may each be glass material or other materials, such as metal, ceramics, poly- The materials such as tetrafluoroethene.First vaporising device 11 and second vaporising device 12 need high temperature resistant, for example heat resisting temperature is 200 ℃。
First connecting line of the Rapid measuring and the second connecting line first choice silicone tube, can also it is other other The piping material that high temperature resistant easily connects, such as butyl sebific duct.Connection type between the Rapid measuring component can be set Pipe connection, cassette connection or hinge connection, and require the leakproofness for guaranteeing to connect.The Rapid measuring of the present embodiment is only retouched The embodiment of two and one test access is stated, it is to be understood that can realize while measure more by increase test access The purpose of a test sample.The heating time being arranged in the determination condition of the Rapid measuring and temperature can be according to product spies Property is adjusted at any time.
The adhesive or water content of coating and total volatile organism content quick determination equipment of the present embodiment, by same The experiment of test sample moisture evaporation and blank control test are established in test access, and identical steaming is determined by blank control test The content of moisture in the same space of transmitting apparatus;And by the evaporation experiment of test sample, measurement is packed into the first of test sample Vaporising device 11 is in the mass change before and after experiment and subtracts the moisture content in test sample can to deduce out general volatile organic The exact level of object.
The adhesive or water content of coating and total volatile organism content quick determination equipment of the present embodiment, continuous mode are high Effect, economic, convenient and environmental protection, measurement result is accurate, stablizes, reagent consumptive material high recycling rate.The blank control of embodiment The high-temperature baking process before carrying out total volatile organism assay is tested, by measuring the first drying device 14 and second The mass change of drying device 15 can come out determination of moisture, and determination of moisture is without being additionally carried out test;The present embodiment Sensing equipment cost is relatively low, the consumables costs such as activated desiccant and pure nitrogen gas are cheap, reusable;The measurement of the present embodiment The experiment of equipment test sample moisture evaporation and blank control test process are simple to operate, are not necessarily to standardizing reagent, without molten Solve sample;The measuring method and equipment and Karl_Fischer method and gas chromatography of the present embodiment are compared, and accuracy is higher; The measuring method and equipment of the present embodiment eliminate sampling amount problem bring error since the sampling amount of test sample is big, inspection Surveying result has good stability;The measuring method and equipment experimentation of the present embodiment are without using any organic reagent and its His harmful reagent consumptive material, will not threaten to environmental and human health impacts;The measuring method and equipment reagent consumptive material of the present embodiment With reusable performance, discharge is reduced, sustainability is provided.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/interval is used in it He is included in scope of patent protection of the invention relevant technical field.

Claims (10)

1. a kind of adhesive or water content of coating and total volatile organism content quick determination equipment, which is characterized in that including extremely Few one group of test access, each group of test access include sample test channel and do not store test sample skip test it is logical Road, the sample test channel includes the first drying device of the first vaporising device and in communication absorption moisture, described Skip test channel includes the second vaporising device and the second drying device for only absorbing moisture in communication;
First vaporising device includes setting the adhesive of quality or the room of coating test sample for storing, and described second Vaporising device structure is identical as first vaporising device, when measurement described in the first vaporising device and second vaporising device It is placed in the constant temperature heating device of the first set temperature;
The sample test channel further includes the first connection of connection first content measuring device and the first drying device Pipeline, the skip test channel further include the second connection of connection second content measuring device and the second drying device Pipeline, first connecting line and the second connecting line are for determining moisture determination item according to the type of adhesive or coating After part, the first vaporising device of Xiang Suoshu and second vaporising device are passed through the dry gas for setting flow velocity.
2. adhesive according to claim 1 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, the dry gas source connects each test access by valve.
3. adhesive according to claim 1 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that,
First vaporising device in the sample test channel is connected to dry gas source, and first vaporising device adds test sample, The desiccant of the first drying device filling activation;Second vaporising device in the skip test channel is connected to the dry gas Source, second vaporising device do not add test sample, the desiccant of the second drying device filling activation.
4. adhesive according to claim 1 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, first vaporising device and the second vaporising device structure are identical, including the gluing for storing setting quality The room of agent or coating test sample, the room include the first air inlet and the first gas outlet.
5. adhesive according to claim 4 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, what the first air inlet and the configuration of the first gas outlet of first vaporising device and the second vaporising device can retract Evaporate bottle stopper.
6. adhesive according to claim 1 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, described the first drying device for absorbing moisture and the second drying device structure are identical, including containing cavities Room, the storage chamber connect the second air inlet, the second gas outlet and the charging door for being packed into activated desiccant.
7. adhesive according to claim 5 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, the second air inlet, the second gas outlet and the charging of first drying device and second drying device The drying bottle stopper that mouth configuration can retract.
8. adhesive according to claim 7 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, in measurement, the charging door is by described dry for first drying device and second drying device It is arranged at second air inlet of the sealing of dry bottle stopper, first drying device and the second drying device, the second gas outlet position Mineral wool filter layer.
9. adhesive according to any one of claims 1 to 8 or water content of coating and total volatile organism content are quickly surveyed Locking equipment, which is characterized in that first connecting line and second connecting line use silicone tube or butyl sebific duct.
10. adhesive according to claim 2 or water content of coating and total volatile organism content quick determination equipment, It is characterized in that, when a test access is arranged, first connecting line includes the first connecting tube and the second connecting tube, described Second connecting line includes third connecting tube and the 4th connecting tube, and the output of the valve is connected to first connecting tube and third Connecting tube, first connecting tube are connected to the valve and first vaporising device, the second connecting tube connection described the One vaporising device and first drying device;The third connecting tube is connected to the valve and second vaporising device, institute It states the 4th connecting tube and is connected to second vaporising device and second drying device, the dry gas source is connected to by flowmeter The valve.
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