CN106525274B - A kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process - Google Patents
A kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process Download PDFInfo
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- CN106525274B CN106525274B CN201610945168.9A CN201610945168A CN106525274B CN 106525274 B CN106525274 B CN 106525274B CN 201610945168 A CN201610945168 A CN 201610945168A CN 106525274 B CN106525274 B CN 106525274B
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- 238000000034 method Methods 0.000 title claims abstract description 84
- 238000004781 supercooling Methods 0.000 title claims abstract description 67
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 51
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 49
- 230000008569 process Effects 0.000 title claims abstract description 38
- 238000002425 crystallisation Methods 0.000 title claims abstract description 18
- 230000008025 crystallization Effects 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 39
- 239000004831 Hot glue Substances 0.000 claims abstract description 24
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims description 32
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 20
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 18
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 9
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000012188 paraffin wax Substances 0.000 claims description 8
- 229920006324 polyoxymethylene Polymers 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 7
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 7
- 229920002223 polystyrene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims 4
- 150000002148 esters Chemical class 0.000 claims 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 150000004702 methyl esters Chemical class 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 3
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- 230000007797 corrosion Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 12
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229960005486 vaccine Drugs 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- JSLMNNPQKHONFW-UHFFFAOYSA-N benzene naphthalene-1-carboxylic acid Chemical compound C1(=CC=CC2=CC=CC=C12)C(=O)O.C1=CC=CC=C1 JSLMNNPQKHONFW-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000005487 naphthalate group Chemical group 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2203/00—Application of thermometers in cryogenics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention discloses a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process, includes the following steps: step 1, thermoplastic polymer's (hot melt adhesive) of appropriate weight 50mg and thin slice is taken to measure material as supercooling temperature；Step 2, the measurement for starting supercooling temperature after thermoplastic polymer is adhered directly onto inside or outside the surface or packing box of measured product；After step 3, measurement, material is measured to the thermoplastic polymer by thermometric analyzer to analyze, and by result compared with raw measurement results, you can get it, and measured product whether exceeds minimum temperature and the specific information for exceeding temperature in measurement process；Step 4 heats the thermoplastic polymer, realizes the recycling of the supercooling temperature measurement material.The measurement material that the present invention selects is cheap, is easy to choose, the processing is simple, reusable.The volume very little of product, easy to carry, property is stablized, and can use in moist and corrosion environment.
Description
Technical field
The invention belongs to temperature measurement and thermograph fields, are novel thermometries, more particularly, to one kind
Supercooling temperature measurement method based on thermoplastic polymer's crystallization process.
Background technique
With the development of modern economy, new product from manufacturer to user hand in require one section of long period of experience
Storage and transportational process, this just increasingly deepens storage and the requirement of transportation technology.For example, modern medicine industry, the kind of vaccine
Class increases year by year with the development of modern medicine technology, wherein the vaccine of the overwhelming majority is all the process needed transporting and storing
In maintain in certain temperature range, be likely to cause if storing improper (temperature is too low or excessively high) in this course
Vaccine is rotten or failure, the extent of injury to the mankind as one can imagine.This just needs to obtain after the process transported and stored
Temperature change into transportational process, temperature whether be more than defined by temperature range.
Although modern temperature, which obtains equipment, to be had very much, generally mainly based on electronic equipment, electronic equipment is lacked
Point has very much, such as: due to staff's violation operation during transportation, in order to save transportation cost, closes refrigeration and set
Standby, rotten so as to cause cargo, especially in drug Refrigerated Transport, this is most dangerous.And memorial alloy is as a kind of new
The temperature measurement technology of type, without power supply can also long-time storage temperature historical information (patent No.: CN102944326A), but make
Valence is higher and must be limited by marmem transition temperature range, therefore application is poor.And the temperature based on polymer
Cost is relatively low for measurement method, (notification number CN102944326B), but is only used for the monitoring of temperature overheating at present.
Summary of the invention
The present invention, aiming to the above problems, provides a kind of temperature memory effects using in thermoplastic polymer's crystallization process, to survey
Measure the supercooling temperature historic villages and towns of product in supply chain.The temperature that this method measures can save for a long time, and material is repeatable
The one kind utilized is based on the supercooling temperature measurement method of thermoplastic (including partially crystallizable) polymer crystallization process.Meanwhile method is also
The advantages that low with production cost, easy to choose, the processing is simple, moisture resistant, is not necessarily to external power supply.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process, includes the following steps:
Step 1 takes the thermoplastic polymer of 5-200mg to measure material as supercooling temperature；
Step 2 is opened after the thermoplastic polymer to be adhered directly onto the surface of measured product or the inside and outside portion of packing box
The measurement of beginning supercooling temperature；
After step 3, measurement, material is measured to the thermoplastic polymer by thermometric analyzer and is analyzed, and
By analysis result compared with raw measurement results, you can get it, and whether measured product undergoes beyond minimum in measurement process
The process of temperature, and obtain the specific value of information how much spent beyond minimum temperature；
Step 4 heats the thermoplastic polymer, realizes the recycling of the supercooling temperature measurement material.
The thermoplastic polymer for supercooling temperature measurement uses: paraffin, hot melt adhesive, polyurethane, polyethylene, and poly- third
Alkene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polytetrafluoroethylene (PTFE) (Teflon) gather to benzene
Naphthalate, one of polyformaldehyde.
The supercooling temperature measurement material shape can be random shape and size, strip, sheet or film-form.
The supercooling temperature range that described its crystallization temperature section of polymer for supercooling temperature measurement is detected in needs, and
And its crystalline transition start temperature is the normal minimum permissive temperature of required measurement product or is higher than this temperature.
The present invention uses the supercooling temperature measurement method of thermoplastic polymer, has the advantage that compared with prior art
1, the measurement material selected by the present invention is cheap, is easy to choose, and the processing is simple, reusable, is product supply
A kind of ideal supercooling temperature measurement method in chain.
2, material production cost used in the present invention is relatively low, and manufacturing process is fairly simple, while using 5-200mg
Measurement, therefore the volume very little of product can be completed, it is easy to carry and store, it can largely use in the measurements.
3, the data result measured by the present invention has good safety and stability, not easy to lose, and measures material
Expect that nature is stablized, can be used in moist and mordant environment；The invention can be in the item supported without external power supply
Under part, measured temperature data result is saved for a long time.
Detailed description of the invention
Fig. 1 is the analysis graph that hot melt adhesive material minimum is lower than 51 DEG C.
Fig. 2 is that hot melt adhesive material once cools down 54 DEG C of minimum value of analysis graph.
Fig. 3 is that hot melt adhesive material once cools down 50 DEG C of minimum value of analysis graph.
Fig. 4 is that hot melt adhesive material once cools down 46 DEG C of minimum value of analysis graph.
Fig. 5 is that hot melt adhesive material once cools down 72 DEG C of minimum value of analysis graph.
Fig. 6 is the cooling corresponding curve diagram stopped between temperature and the heat enthalpy value of melting transition process of hot melt adhesive material.
Specific embodiment
The present invention will be described in further detail combined with specific embodiments below, but protection scope of the present invention is not had
The embodiment of body is limited, and is subject to claims.In addition, with without prejudice under the premise of technical solution of the present invention, to this hair
Any modifications or changes easy to accomplish of those of ordinary skill in the art made by bright are fallen within the scope of the present invention.
A kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process, includes the following steps:
Step 1 takes the thermoplastic polymer of 5-200mg to measure material as supercooling temperature；
Step 2 is opened after the thermoplastic polymer to be adhered directly onto the surface of measured product or the inside and outside portion of packing box
The measurement of beginning supercooling temperature；
After step 3, measurement, by thermometric analyzer (commercial products differential scanning instrument) to the thermoplastic polymer
Measurement material is analyzed, and by analysis result compared with raw measurement results, you can get it, and measured product was being measured
The process beyond minimum temperature whether is undergone in journey, and obtains the specific value of information how much spent beyond minimum temperature；
Step 4, by thermoplastic polymer heat treatment (such as: be heated to being completely melt 20 degrees Celsius of temperature with
On), realize the recycling of the supercooling temperature measurement material.
The thermoplastic polymer for supercooling temperature measurement uses: paraffin, hot melt adhesive, polyurethane, polyethylene, and poly- third
Alkene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polytetrafluoroethylene (PTFE), poly terephthalic acid second
Diol ester, it is a kind of in polyformaldehyde.
The thermoplastic polymer for supercooling temperature measurement uses: paraffin, hot melt adhesive, polyurethane, polyethylene, and poly- third
Alkene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polytetrafluoroethylene (PTFE), poly terephthalic acid second
Diol ester, in polyformaldehyde optionally several (3-5 kinds).
The thermoplastic polymer for supercooling temperature measurement is mixed using the following raw material, and mixture forms number are as follows: stone
1-3 parts of wax, 1-3 parts of hot melt adhesive, 1-3 parts of polyurethane, 1-3 parts of polyethylene, 1-3 parts of polypropylene, 1-3 parts of polystyrene, poly- methyl
1-3 parts of methyl acrylate, 1-3 parts of polyvinyl chloride, 1-3 parts of nylon, 1-3 parts of polycarbonate, 1-3 parts of polytetrafluoroethylene (PTFE), gather to benzene
1-3 parts of naphthalate, 1-3 parts of polyformaldehyde.
The thermoplastic polymer for supercooling temperature measurement is mixed using the following raw material, and mixture forms number are as follows: stone
2 parts of wax, 2 parts of hot melt adhesive, 2 parts of polyurethane, 2 parts of polyethylene, 2 parts of polypropylene, 2 parts of polystyrene, polymethyl methacrylate 2
Part, 2 parts of polyvinyl chloride, 2 parts of nylon, 2 parts of polycarbonate, 2 parts of polytetrafluoroethylene (PTFE), 2 parts of polyethylene terephthalate, poly- first
2 parts of aldehyde.
The supercooling temperature measurement material shape can be random shape and size, strip, sheet or film-form.
The supercooling temperature range that described its crystallization temperature section of polymer for supercooling temperature measurement is detected in needs, and
And its crystalline transition start temperature is the normal minimum permissive temperature of required measurement product or is higher than this temperature.
Fig. 1 is to measure primary cooling minimum lower than hot melt glue material using hot melt adhesive material, and using the method for the present invention
The crystalline transition of material completes the differential heating scan method analysis curve after temperature (51.0 DEG C).
Fig. 2 is to measure primary cooling minimum value (54 DEG C) between heat using hot melt adhesive material, and using the method for the present invention
The differential heat that the crystalline transition start temperature (67.2 DEG C) and crystalline transition of melt adhesive materials are completed between temperature (51.0 DEG C) is swept
Retouch method analysis curve.
Fig. 3 is to measure primary cooling minimum value (50 DEG C) between heat using hot melt adhesive material, and using the method for the present invention
The differential heat that the crystalline transition start temperature (67.2 DEG C) and crystalline transition of melt adhesive materials are completed between temperature (51.0 DEG C) is swept
Retouch method analysis curve.
Fig. 4 is to measure primary cooling minimum value (46 DEG C) between heat using hot melt adhesive material, and using the method for the present invention
The differential heat that the crystalline transition start temperature (67.2 DEG C) and crystalline transition of melt adhesive materials are completed between temperature (51.0 DEG C) is swept
Retouch method analysis curve.
Fig. 5 is to use hot melt adhesive material, and measure primary cooling minimum value (72.0 DEG C) using the method for the present invention and be higher than
The differential heating scan method of the crystalline transition start temperature (67.2 DEG C) of hot melt adhesive material analyzes curve.
Fig. 6 is to use hot melt adhesive material, and according to method shown in Fig. 1 to Fig. 5, pass through a series of experiments, the cooling of acquisition
Stop temperature (Ts) with the correspondence between the heat enthalpy value (Δ H) of the corresponding melting transition process measured using differential heating scan method
Relation curve.
Embodiment 1
A kind of supercooling temperature measurement method based on thermoplastic polymer, includes the following steps:
Step 1, prepare appropriate weight (such as: 5mg) and the polyvinyl chloride of arbitrary shape (such as: flake) is as being subcooled
Temperature measures material；
Step 2, the surface that the described supercooling temperature measurement material is directly adhered to measured product or storage bin
At once the measurement of supercooling temperature is carried out after internal or external；
After step 3, measurement, the supercooling temperature measurement material is analyzed using differential heating scan method,
And by result compared with raw measurement results, you can get it, and whether measured product lives through beyond minimum in measurement process
The process of temperature, further according to TsCorresponding relationship (such as shown in Fig. 6) between Δ H, how much you can get it exceeds minimum temperature
The information of degree；
Step 4, by the described supercooling temperature measurement material heat treatment (such as: be heated to melting transition and complete temperature two
Ten degrees Celsius or more), it can be achieved that the supercooling temperature measures the recycling of material.
Embodiment 2
A kind of supercooling temperature measurement method based on thermoplastic polymer, includes the following steps:
Step 1, take appropriate weight (such as: 30mg) and the paraffin of arbitrary shape (such as: graininess) is as supercooling temperature
Measure material；
After step 3, measurement, the supercooling temperature measurement material is analyzed using differential heating scan method,
And by result compared with raw measurement results, you can get it, and whether measured product lives through beyond minimum in measurement process
The process of temperature, further according to TsCorresponding relationship (such as shown in Fig. 6) between Δ H, how much you can get it exceeds minimum temperature
The information of degree；Other steps are repeated no more with embodiment 1.
Embodiment 3
A kind of supercooling temperature measurement method based on thermoplastic polymer, includes the following steps:
Step 1, take appropriate weight (such as: 18mg) surveyed with the nylon of arbitrary shape (such as: rodlike) as supercooling temperature
Measure material；
After step 3, measurement, the supercooling temperature measurement material is analyzed using differential heating scan method,
And by result compared with raw measurement results, you can get it, and whether measured product lives through beyond minimum in measurement process
The process of temperature, further according to TsCorresponding relationship (such as shown in Fig. 6) between Δ H, how much you can get it exceeds minimum temperature
The information of degree；Other steps are repeated no more with embodiment 1.
Embodiment 4
A kind of supercooling temperature measurement method based on thermoplastic polymer, includes the following steps:
Step 1, take appropriate weight (such as: 20mg) and the hot melt adhesive of arbitrary shape (such as: strip) is as supercooling temperature
Measure material；
After step 3, measurement, the supercooling temperature measurement material is analyzed using differential heating scan method,
And by result compared with raw measurement results, you can get it, and whether measured product lives through beyond minimum in measurement process
The process of temperature, further according to TsCorresponding relationship (such as shown in Fig. 6) between Δ H, how much you can get it exceeds minimum temperature
The information of degree；Other steps are repeated no more with embodiment 1.
Embodiment 5
A kind of supercooling temperature measurement method based on thermoplastic polymer, includes the following steps:
Step 1, take appropriate weight (such as: 24mg) and the polytetrafluoroethylene (PTFE) (Teflon) of arbitrary shape (such as: sheet)
Material is measured as supercooling temperature；
After step 3, measurement, the supercooling temperature measurement material is analyzed using differential heating scan method,
And by result compared with raw measurement results, you can get it, and whether measured product lives through beyond minimum in measurement process
The process of temperature, further according to TsCorresponding relationship (such as shown in Fig. 6) between Δ H, how much you can get it exceeds minimum temperature
The information of degree；Other steps are repeated no more with embodiment 1.
Measuring principle of the present invention:
One, by method shown in Fig. 1 to Fig. 5, by a series of experiments, the cooling of acquisition stops temperature (Ts) and using differential
Corresponding relationship curve (as shown in Figure 6) between the heat enthalpy value (Δ H) for the correspondence melting transition process that heating scan method measures.
Two, it is being measured the crystalline transition that the primary cooling value of product is more than thermoplastic (including partially crystallizable) polymer material
Under conditions of completing temperature, the supercooling temperature measurement material is analyzed using differential heating scan method, then before measuring
Primitive curve characteristic value (peak area) it is identical as its test curve new feature value (peak area) after being measured, tool
Body cooling value can not judge, as shown in Figure 1.
Three, when the measured primary cooling of product generation, and temperature is between thermoplastic (including partially crystallizable) polymer
When material crystalline is changed between start temperature and crystalline transition completion temperature, differential is used to the supercooling temperature measurement material
Heating scan method is analyzed, then the characteristic value (peak area) of the primitive curve before measuring and its test after being measured are bent
Line new feature value (peak area) is different, that is, can determine whether that being measured temperature was once lower than minimum permissive temperature, and survey according to prior
The cooling of this material in cooled down degree and the new feature value (Δ H) that generates later between corresponding relationship (as shown in Figure 6),
It can be concluded that exceeding the specific value of minimum permissive temperature, as shown in Figures 2 to 4.
Four, primary cooling occurs in monitored product, and the temperature value to cool down is poly- higher than the thermoplastic (including partially crystallizable)
Under conditions of closing object material crystalline transformation start temperature, to the described supercooling temperature monitoring material using differential heating scan method into
Row analysis, the test curve after the completion of monitoring is an approximate straight line, be can determine whether in this monitoring process, minimum temperature
Value is not above minimum permissive temperature, as shown in Figure 5.
Claims (7)
1. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process, it is characterised in that: include the following steps:
Step 1 takes the thermoplastic polymer of 5-200mg to measure material as supercooling temperature；
Step 2 started after the thermoplastic polymer to be adhered directly onto the surface of measured product or the inside and outside portion of packing box
The measurement of cold temperature；
After step 3, measurement, material is measured to the thermoplastic polymer by thermometric analyzer and is analyzed, and will divided
Result is analysed compared with raw measurement results, you can get it, and whether measured product undergoes beyond minimum temperature in measurement process
Process, and obtain the specific value of information how much spent beyond minimum temperature；
Step 4 heats the thermoplastic polymer, realizes the recycling of the supercooling temperature measurement material.
2. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
It is:
The thermoplastic polymer for supercooling temperature measurement uses: paraffin, hot melt adhesive, polyurethane, polyethylene, polypropylene gather
Styrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polytetrafluoroethylene (PTFE), polyethylene terephthalate
Ester, it is a kind of in polyformaldehyde.
3. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
It is:
The thermoplastic polymer for supercooling temperature measurement uses: paraffin, hot melt adhesive, polyurethane, polyethylene, polypropylene gather
Styrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polytetrafluoroethylene (PTFE), polyethylene terephthalate
Ester, it is several in polyformaldehyde.
4. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
It is:
The thermoplastic polymer for supercooling temperature measurement is mixed using the following raw material, and mixture forms number are as follows: paraffin 1-3
Part, 1-3 parts of hot melt adhesive, 1-3 parts of polyurethane, 1-3 parts of polyethylene, 1-3 parts of polypropylene, 1-3 parts of polystyrene, polymethylacrylic acid
1-3 parts of methyl esters, 1-3 parts of polyvinyl chloride, 1-3 parts of nylon, 1-3 parts of polycarbonate, 1-3 parts of polytetrafluoroethylene (PTFE), poly terephthalic acid
1-3 parts of glycol ester, 1-3 parts of polyformaldehyde.
5. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
It is:
The thermoplastic polymer for supercooling temperature measurement is mixed using the following raw material, and mixture forms number are as follows: paraffin 2
Part, 2 parts of hot melt adhesive, 2 parts of polyurethane, 2 parts of polyethylene, 2 parts of polypropylene, 2 parts of polystyrene, 2 parts of polymethyl methacrylate, gather
2 parts of vinyl chloride, 2 parts of nylon, 2 parts of polycarbonate, 2 parts of polytetrafluoroethylene (PTFE), 2 parts of polyethylene terephthalate, polyformaldehyde 2
Part.
6. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
Be: the supercooling temperature measurement material shape can be particle, strip, sheet or film-form.
7. a kind of supercooling temperature measurement method based on thermoplastic polymer's crystallization process according to claim 1, feature
It is: the supercooling temperature range that described its crystallization temperature section of polymer for supercooling temperature measurement is detected in needs, and
Its crystalline transition start temperature is the normal minimum permissive temperature of required measurement product or is higher than this temperature.
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| CN1650154A (en) * | 2002-03-16 | 2005-08-03 | 布里斯托尔大学 | Thermometer |
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