CN104965000A - Detection method and detection device for textile with phase transition temperature-adjusting function - Google Patents

Detection method and detection device for textile with phase transition temperature-adjusting function Download PDF

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Publication number
CN104965000A
CN104965000A CN201510438748.4A CN201510438748A CN104965000A CN 104965000 A CN104965000 A CN 104965000A CN 201510438748 A CN201510438748 A CN 201510438748A CN 104965000 A CN104965000 A CN 104965000A
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China
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temperature
changing
phase
test
sample
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CN201510438748.4A
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杜兔平
窦晓亮
王菲
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BEIJING YUTIAN PHASE CHANGE TECHNOLOGY Co Ltd
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BEIJING YUTIAN PHASE CHANGE TECHNOLOGY Co Ltd
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Abstract

The invention provides a detection method and a detection device for textile with a phase transition temperature-adjusting function, and aims at solving the problems that an existing detection method is in shortage and a detection instrument is high in cost and poor in universality. Through designing a set of detection device provided with a device for providing cold and heat sources, a test chamber and a temperature and heat collection and analysis device, dynamic and scientific actual wearing environment simulation test is carried out on the textile with the phase transition temperature-adjusting function; the actual detection environment is simply and feasibly simulated; and the detection method and the detection device can be applied to most laboratories or factories and are used for directly guiding experiments and production.

Description

There is detection method and the pick-up unit of phase-changing and temperature-regulating function textile
Technical field
The present invention relates to a kind of detection method and pick-up unit of functional textile, be specifically related to a kind of detection method and pick-up unit of phase-changing and temperature-regulating functional fabric.
Background technology
Phase-changing and temperature-regulating function textile refers to and is combined by the fillers such as phase-change material and fiber, fabric or flocculus, gives the function that flat textile product regulates temperature.Phase-change material can absorb and release heat when phase-state change, heat release when heat absorption during contact thermal source, contact low-temperature receiver.Utilize this characteristic, human body is used as a Cooling and Heat Source, phase-changing and temperature-regulating function textile can form interaction mechanism with people, form clothing climate, the waste heat absorbing people's release stores simultaneously, discharges, keep a kind of comparatively comfortable state when human body needs.
But how to define the national standard that the effect of phase-changing and temperature-regulating function textile is also not relevant, corresponding detection method and pick-up unit are also incomplete, and this is functional cannot to embody phase-changing and temperature-regulating completely.This is that this is exactly a Cooling and Heat Source adjusted constantly due to people, clothing environment also more complicated, the situation that phase-changing and temperature-regulating function textile is used for underwear and overcoat also needs differentiation to treat, so want the actual effect testing out phase-changing and temperature-regulating function textile then to need to consider many factors.
First the functional of phase-changing and temperature-regulating function textile is bidirectional modulation, should comprise the performance of hot and cold two aspect in test; Secondly the functional of phase-changing and temperature-regulating function textile is dynamic adjustments, and test should be a process, but not certain in a flash; Functional and the human body interaction of third phase modified tone temperature function textile, test should can simulate that human body is actual wears situation as far as possible, and between underwear micro climate and external environment.Generally speaking, the functional detection of phase-changing and temperature-regulating function textile is more prone to be that a kind of comfortableness detects and hommization is experienced.And functional so special just because of phase-changing and temperature-regulating function textile, so the development of phase-change material is quite ripe, but the detection of phase-changing and temperature-regulating function textile is at the early-stage.
Method more common is at present differential scanning calorimetry (DSC), and this is a kind of method detecting phase-change material performance, it is directly used in fabric test then rather forced.First equipment price is expensive, and testing cost is high, and common laboratory or factory do not possess such condition; Secondly needed for this method of testing, sample size is milligram rank, rate temperature change has a definite limitation, for the detection of phase-changing and temperature-regulating function textile due to sampling quantitative limitation, error is comparatively large, and the restriction of rate temperature change also cannot test out the actual of this function and wears effect.
Common tests with temperature correlation fabric, and as insulation rate, this mainly investigates comfortableness from warming angle.It can only reflect a side of phase-changing and temperature-regulating function textile, and totally can not reflect its two-way regulating function " loved tenderly ".This method of testing is steady state test in addition, cannot simulate the function embodiment under phase-changing and temperature-regulating function textile and human body interaction.And for example contact cool feeling (Q-max value), reflection be that contact has the effect of cool feeling fabric, emphasize moment effect, the theory comfortable with phase-changing and temperature-regulating function textile continuation is runed counter to.
Other are related to the fabric of cold and hot function, as moisture absorption heating and extinction heating etc., the method using for reference them is also impracticable.This kind of fabric, can not bidirectional modulation it is emphasised that unilaterally cold or hot function, and the principle simultaneously producing function is different, and method of testing also can not be used with.
Method comparatively general is in the world ASTMD7024-2004 (outlast method), and this is the steady state of textile material and the test method of dynamic Thermal of the proposition of outlast company.The method overcome the defect such as above said steady state test, one-sided adjustment, the test for phase-changing and temperature-regulating functional fabric has very large reference.But do not have ready-made instrument and equipment, evaluation result is dimensionless number, very not directly perceived, its physical significance is difficult to ordinary consumer and understands.
Describe a kind of phase-change material temperature adjustment function textile inspection method in patent 201210492660.7, build a set of pick-up unit with all purpose instrument, carry out evaluation effect with Temperature-time change curve.Method is feasible, but systematicness is strong, can be used as simple demonstration, but is used for the actual effect of wearing of full-time instruction phase-changing and temperature-regulating function textile and then has many inadvisable parts.
First, selection 15-20 DEG C to 40-50 DEG C of Range of measuring temp rationally little, if phase-changing and temperature-regulating function textile is used for underwear, paste skin layers temperature and be greater than 28 DEG C under normal circumstances, so generally determine that scope is obviously inadvisable, temperature-measuring range should be selected, because the effect of the selection of temperature-measuring range inevitable effect appraise phase-changing and temperature-regulating function textile according to the practical use of actual transformation temperature adjustment function textile.
Secondly test specimens is too random with the choice criteria of contrast sample, and as test specimens in embodiment is selected all different from the base cloth of contrast sample, as everyone knows, the physical property such as cotton, spandex, viscose are completely different.With regard to scientific, test specimens and contrast sample should be only the differences with or without phase-change material.
Use in addition the temperature difference and temperature and time curve also too simple as evaluating standard, can only illustrate that phase-changing and temperature-regulating textile and flat textile product exist temperature contrast, there is certain thermoregulation effect, but whether phase-changing and temperature-regulating fabric existed cold (temperature is lower than solidifying point but still not solidify or crystallization was then cold), whether temperature adjustment can be postponed, whether absorb and release heat in the temperature range that human body needs, really reach the effect with human body interaction, can not evaluate completely.
Summary of the invention
For the deficiencies in the prior art, the present invention aims to provide a kind of detection method and pick-up unit of phase-changing and temperature-regulating function textile, and simple and easy to do, simulation actual measurement environment, can in most of laboratory or factory application, direct guiding experiment and production.
Technical scheme of the present invention is as follows:
For the detection method of phase-changing and temperature-regulating function textile, comprising the steps: 1) test prepares, and 2) dynamically heat up, 3) dynamically lower the temperature, 4) data analysis and measurement index.
Step 1) described test preparation comprise at least each 3 groups of test specimens of making and contrast sample, take from the position of textile samples institutional framework larger area; After preparing the process of sample drying, make sample temperature to be measured according to test request balance.
Step 2) described dynamic intensification, arranging proving installation temperature is 37-50 DEG C; Test specimens and contrast sample are put into proving installation fast, records temperature variation, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve on time.
Step 3) described dynamic cooling, arranging proving installation temperature is 15-27 DEG C; Record the temperature variation of test specimens and blank sample, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve on time.
Step 4) described data comprise measurement the data obtained, and the curve formed according to these data, test specimens-blank sample data difference curve.Described measurement index, comprises the condition adjudgement under probe temperature condition, the thermoregulation effect duration of textile sample.
The detection method of phase-changing and temperature-regulating function textile, preferably includes following steps:
1. test prepares:
1. make test specimens and contrast sample: the position of getting phase-changing and temperature-regulating function textile institutional framework larger area, cuts out the rectangle of at least 3 pieces of 20*6cm, notice should evenly arranging, not on the identical vertical and horizontal position of fabric in cutting position.By this rectangle fabric along long limit doubling doubling again, a stitching of long limit opening part and minor face opening part, form the two-layer right cylinder test specimens only having openings at one side.According to same method, to prepare to 3 blank samples sample as a comparison on same base cloth with non-tempering function textile.Temperature sensor is inserted middle layer from sample openend, stand-by.
2. sample pre-treatment: sample is put into baking oven inner drying, design temperature is 105 ± 2 DEG C, time 2h; Dry complete, the drying of sample being put into rapidly sealing wherein cools 1h, and rear taking-up is placed in thermostatic constant wet chamber balance 24h, design temperature 20-25 DEG C, balances to be measured.
2. dynamically heat up:
Arranging proving installation temperature is 37-50 DEG C, used for phase-changing and temperature-regulating function textile kinds of laundry and applicable season design temperature, in 5s, test specimens and blank sample are moved in proving installation, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.
3. dynamically lower the temperature
Arranging proving installation temperature is 15-27 DEG C, used for phase-changing and temperature-regulating function textile kinds of laundry and applicable season design temperature, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.
Further, the invention provides a kind of pick-up unit for phase-changing and temperature-regulating function textile, the detection method based on aforesaid phase-changing and temperature-regulating function textile detects.
In described pick-up unit, comprise the device that provides Cooling and Heat Source, adjustable to 100 DEG C from 0 DEG C.Two test cabinets, what be designed to cavity is jacket structured, as simulation test environment, test specimens and blank sample can be put into test cabinet and test.Test cabinet can connect temperature sensing device or heat sensing equipment etc. and be used for evaluation effect.Pick-up unit as shown in Figure 1.
Compared with prior art, detection method of the present invention, can simulate human body dress or use the measured result of phase-changing and temperature-regulating function textile in true environment.Wherein, the cavity of test cabinet-jacket structured simulates actual environment, there is provided the medium temperature of Cooling and Heat Source by regulating, then can simulate midwinter (-10 DEG C) to hot summer (40 DEG C), or even the environment temperature of (workshop, freezer) in extreme environment.Test cabinet structure is as shown in Fig. 2 (a).Sample is then simulated human body dress or is used phase-changing and temperature-regulating function textile, is inserted in test cabinet cavity, then represent and be in varying environment.As this is used for textiles in winter coat back boxing, general winter, outdoor temperature was about 0 DEG C, and overcoat liner layer is 20 DEG C, body temperature 37 DEG C, and phase-change material absorbs human body release waste heat and stores, and discharges when stepping into outdoor.Therefore heating schedule can be set be: 20-37 DEG C; Cooling process is: 37-20 DEG C.Finally by record and evaluation effects such as temperature sensing device or heat sensing equipments.In test cabinet test process, structure is as shown in Fig. 2 (b).
Detection method of the present invention, be a kind of method of dynamic test, test process is the circulation of temperature rise-temperature drop, is different from static test in the past, and it is more reasonable to design.
Detection method of the present invention, test be thermoregulation effect, be a kind of effect of bidirectional modulation, not show the warming or single effect of creeping chill, science more comprehensively.
Detection method of the present invention, record Temperature-time change curve and test specimens-blank sample temperature difference and temperature curve.The former is used for characterizing the duration of phase-changing and temperature-regulating function textile effect, and the latter is used for characterizing phase-changing and temperature-regulating function textile effect size, and carries out temperature adjustment under which kind of temperature section.This index of the latter has more practical significance, such as the temperature adjustment underwear of use in winter, if exothermal effect continues 1h, the temperature difference is all more than 3 DEG C, but exothermic temperature section corresponding to the temperature difference 3 DEG C but at 10-20 DEG C, then still can judge that this phase-changing and temperature-regulating functional fabric does not have effect.Because the comfort temperature of human body underwear layer is at about 33 DEG C, has shivered shake about 27 degree people, if long-time internal layer temperature is too low, people just can be in peril of one's life.If 10-20 DEG C of just temperature adjustment, concerning of no avail ordinary people.
Accompanying drawing explanation
Fig. 1 is pick-up unit schematic diagram;
Fig. 2 a is the jacket structured schematic diagram of test cabinet, and Fig. 2 b is the jacket structured schematic diagram of test cabinet of test mode;
Fig. 3 is the schematic diagram of test specimens and blank sample in the embodiment of the present invention;
Fig. 4 is that in the embodiment of the present invention, schematic diagram made by test specimens and blank sample;
Fig. 5 is warming up to 37 DEG C by 20 DEG C in the embodiment of the present invention 1;
Fig. 6 is cooled to 27 DEG C by 37 DEG C in the embodiment of the present invention 1.
Embodiment
Embodiment 1
Prepare the white interlock one piece of one piece of phase-changing and temperature-regulating function (containing viscose 90%, nylon 10%, containing phase-change material micro-capsule in viscose, 180g/m2), with ordinary white interlock one piece (same with phase-changing and temperature-regulating functional fabric base cloth, just not contain any phase-change material micro-capsule in fabric).Simulation phase-changing and temperature-regulating function textile is used for T-shirt, and environment is summer, and phase-change material absorbs human body release waste heat and component environment heat storage, discharges when stepping into indoor.Arranging proving installation intensification is: 25-40 DEG C; Cooling is: 40-25 DEG C.
1. test prepares:
1. make test specimens and contrast sample: the white interlock one piece getting phase-changing and temperature-regulating function, cuts out the rectangle of at least 3 pieces of 20*6cm, notice should evenly arranging, not on the identical vertical and horizontal position of fabric in cutting position.By each rectangle fabric along long limit doubling doubling again, doubling method as Fig. 3 (a and b) shown in, figure chain lines is first time broken line, and dotted line be for the second time broken line.A stitching of long limit opening part and minor face opening part, form the two-layer right cylinder test specimens only having openings at one side, as shown in Figure 4, figure orbicular spot line is sewing line to method of sewing.According to same method, get ordinary white interlock, prepare at least 3 blank samples sample as a comparison.Temperature sensor is inserted middle layer from sample openend, stand-by.The precision of this temperature sensor is 0.1 DEG C, and resolution is 0.01, automatically records temperature per second, and by outer attached device output temperature-time plot.
2. sample pre-treatment: test specimens and blank sample are put into baking oven inner drying, design temperature is 105 ± 2 DEG C, time 2h; Dry complete, the drying of test specimens being put into rapidly together with blank sample sealing wherein cools 1h, and rear taking-up is placed in thermostatic constant wet chamber balance 24h, and design temperature 25 DEG C, balances to be measured.
2. dynamically heat up:
Arranging proving installation temperature is 40 DEG C, moves in proving installation in 5s by test specimens and blank sample, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve, as shown in Figure 5.
3. dynamically lower the temperature
Arranging proving installation temperature is 25 DEG C, and changing water-bath medium is 25 DEG C, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve, as shown in Figure 6.
Embodiment 2
Prepare the apricot single knitting single jersey one piece of one piece of phase-changing and temperature-regulating function (containing cotton 98%, spandex 2%, 220g/m2, phase-change material micro-capsule with postfinishing process grafting on fabric), with common apricot single knitting single jersey one piece (same with phase-changing and temperature-regulating functional fabric base cloth, just without the need to Final finishing phase-change material micro-capsule).Simulation phase-changing and temperature-regulating function textile is used for underwear, environment is winter, substantially wear winter and comprise four layers, underwear, shirt sweater and overcoat, formation temperature gradient, even if outdoor subzero, underwear is also little as the temperature fluctuation range of pasting skin layers, and phase-change material absorbs human body release waste heat and stores, and discharges when stepping into outdoor.Setting proving installation temperature fluctuation interval is: intensification 20-37 DEG C, cooling 37-27 DEG C.
1. test prepares:
1. test specimens and contrast sample is made: by method preparation at least 3 test specimens and at least 3 blank samples sample as a comparison of embodiment 1.
2. sample pre-treatment: by method process test specimens and the blank sample of embodiment 1, setting proving installation is 20 DEG C, test specimens and blank sample is placed in one, balances to be measured.
2. dynamically heat up:
Arranging proving installation temperature is 37 DEG C, moves in proving installation in 5s by test specimens and blank sample, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.
3. dynamically lower the temperature
Arranging proving installation temperature is 27 DEG C, and changing in water-bath is 25 DEG C of media, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.
Embodiment 3
Prepare one piece of phase-changing and temperature-regulating function flocculus one piece (hollow terylene, phase-change material micro-capsule sprays in flocculus space), and ordinary hollow polyster fibre flocculus one piece (not containing any phase-change material micro-capsule).Simulation phase-changing and temperature-regulating function textile is used for winter quilt and fills, environment be south winter without heating installation, phase-change material absorb human body release waste heat store, at dead of night temperature reduce time release, setting proving installation temperature fluctuation interval is: intensification 20-37 DEG C, cooling 37-15 DEG C.
1. test prepares:
1. test specimens and contrast sample is made: by method preparation at least 3 test specimens and at least 3 blank samples sample as a comparison of embodiment 1.
2. sample pre-treatment: by method process test specimens and the blank sample of embodiment 1, setting proving installation is 20 DEG C, test specimens and blank sample is placed in one, balances to be measured.
2. dynamically heat up:
Arranging proving installation temperature is 37 DEG C, moves in proving installation in 5s by test specimens and blank sample, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.
3. dynamically lower the temperature
Arranging proving installation temperature is 15 DEG C, and changing water-bath medium is 15 DEG C, an every 6 seconds records temperature variation.Sample to be tested and blank sample equalized temperature, stop record, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve.

Claims (9)

1., for the detection method of phase-changing and temperature-regulating function textile, it is characterized in that comprising the steps: 1) test prepares, and 2) dynamically heat up, 3) dynamically lower the temperature, 4) data analysis and measurement index.
2. the detection method of phase-changing and temperature-regulating function textile according to claim 1, is characterized in that, step 1) described test preparation comprise at least each 3 groups of test specimens of making and contrast sample, take from the position of textile samples institutional framework larger area; After preparing the process of sample drying, make sample temperature to be measured according to test request balance.
3. the detection method of phase-changing and temperature-regulating function textile according to claim 1, is characterized in that, step 2) described dynamic intensification, arranging proving installation temperature is 37-50 DEG C; Test specimens and contrast sample are put into proving installation fast, records temperature variation, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve on time.
4. the detection method of phase-changing and temperature-regulating function textile according to claim 1, is characterized in that, step 3) described dynamic cooling, arranging proving installation temperature is 15-27 DEG C; Record the temperature variation of test specimens and blank sample, formation temperature-time changing curve and test specimens-blank sample temperature difference and temperature variation curve on time.
5. the detection method of phase-changing and temperature-regulating function textile according to claim 1, is characterized in that, step 4) described data comprise measurement the data obtained, and the curve formed according to these data, test specimens-blank sample data difference curve.
6. the detection method of phase-changing and temperature-regulating function textile according to claim 1, is characterized in that, step 4) described measurement index, comprise the condition adjudgement under probe temperature condition, the thermoregulation effect duration of textile sample.
7. for a pick-up unit for the detection method described in any one of claim 1-6, it is characterized in that, pick-up unit comprises the device that at least one provides Cooling and Heat Source, adjustable to 100 DEG C from 0 DEG C; At least two test cabinets, test cabinet is jacket structured with cavity, as simulation test environment; Test cabinet connection data collecting device.
8. the pick-up unit of phase-changing and temperature-regulating function textile according to claim 7, is characterized in that, provides the device of Cooling and Heat Source, and wherein Cooling and Heat Source medium comprises water, conduction oil, air.
9. the pick-up unit of phase-changing and temperature-regulating function textile according to claim 7, is characterized in that, the measurement data collecting device that test cabinet connects comprises temperature sensor, heat sensor.
CN201510438748.4A 2015-07-23 2015-07-23 Detection method and detection device for textile with phase transition temperature-adjusting function Pending CN104965000A (en)

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