CN108072591A - Sample mount that a kind of polymer melt stretches online and application thereof - Google Patents
Sample mount that a kind of polymer melt stretches online and application thereof Download PDFInfo
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- CN108072591A CN108072591A CN201711259467.8A CN201711259467A CN108072591A CN 108072591 A CN108072591 A CN 108072591A CN 201711259467 A CN201711259467 A CN 201711259467A CN 108072591 A CN108072591 A CN 108072591A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/006—Determining flow properties indirectly by measuring other parameters of the system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N2011/006—Determining flow properties indirectly by measuring other parameters of the system
- G01N2011/008—Determining flow properties indirectly by measuring other parameters of the system optical properties
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- General Health & Medical Sciences (AREA)
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- Analysing Materials By The Use Of Radiation (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Sample mount stretched online the present invention relates to a kind of polymer melt and application thereof, the sample mount includes displacement generating mechanism and support pin group, the support pin group is mounted on the displacement actuating station of displacement generating mechanism, by displacement generating mechanism support pin group is driven to move, it is supported multiple lower ends for the polymer melt sample being stretched of the support pin group, polymer melt sample is made not have apparent sink after stretching, and do not stop laser or X-ray, allow laser or X-ray that can smoothly pass through sample, realize the on-line continuous acquisition of scattering data, ensure being smoothed out for experiment.
Description
Technical field
The present invention relates to polymer melt extension test ancillary equipment, examination that especially a kind of polymer melt stretches online
Sample stent and application thereof.
Background technology
There are two kinds of typical flow fields in polymer processing：Shearing Flow and elongation flow field.Have at present largely to cutting
The research that flow field lower structure develops is cut, however, Shearing Flow is also referred to as a kind of weak current field, this is because shear flow can cause
Polymer molecular chain rotation causes a deviation from shear direction, and the ability that it makes strand be deformed orientation is relatively weak.
In contrast, elongation flow field can make strand preferably extend and be orientated, and also therefore can more effectively accelerate to tie
Form and structure in brilliant dynamics and change crystallization process.However, the structure in polymer melt drawing process is drilled at present
The system research of change also seldom has been reported that, this is because some difficulties can be met when carrying out uniaxial tensile test to melt sample,
For example sample is fixed, melt is flowed due to gravity to be collapsed, it is difficult to continue test etc..Although also there are some melt drawn streams
Research in terms of change behavior, but particular device used is mostly more complicated and expensive, is mainly used for single polymers melt and grinds
Study carefully, additionally, there may be some other problems, such as the control for the temperature and elongational flow state stablized.
For the online extension test of polymer melt presently, there are the problem of, it is important to the fixation of sample and stretch shape
The support effect of state, while disturbed test is unable to, such as cannot disturb infrared ray, X-ray, laser smoothly by sample.
The content of the invention
Due to being present with the problem of melt collapses in polymer melt drawing process, cause scattering data can not continuity adopt
Collection.In view of the above-mentioned problems, the present invention provides the sample mount that a kind of polymer melt stretches online, be particularly suitable for X-ray or
Polymer melt online extension test of the laser as incident light source.
The sample mount that the polymer melt stretches online includes displacement generating mechanism and support pin group, the branch
The displacement actuating station that pin group is mounted on displacement generating mechanism is supportted, by displacement generating mechanism support pin group is driven to move, it is described
Pin group is supported to include stent and multiple pins, multiple pins are mutually parallel and compartment of terrain is fixed on stent, and the support pin
The extending direction of multiple pins of group is strictly consistent with the incident angle of laser or X-ray, and the stent is used for and the position
The displacement actuating station for moving generating mechanism is fixed, and the displacement generating mechanism drives the group movement of support pin, makes the branch
Multiple lower ends for the polymer melt sample being stretched of support pin group are supported, and do not stop incident light, allow incident light
Smoothly by the polymer melt sample being stretched, gathered so as to fulfill the continuity of scattering data.When melt drawn,
Can generating mechanism be moved by programme-control, support pin group is driven to be moved to below melt, make melt sample do not have it is apparent under
It falls into, realizes support, and can allow the incident lights such as laser or X-ray that can smoothly pass through sample, ensure being smoothed out for experiment, solve
Data caused by melt collapses can not on-line continuous acquisition problems.
The displacement generating mechanism is the sliding equipment of two axis, for adjusting the displacement along its length of support pin group and tune
Displacement of the whole support pin group along short transverse, the moving range 10-20mm along its length, along moving for short transverse
Scope 10-20mm, to meet testing requirement.
Preferably, the support pin group includes more metal needles, a diameter of 0.5-2mm, and metal needle is welded on and gold
Belong on the wide metal derby of pin diameter, the metal derby that 6-12 sets welded metal needle is fixed on formation support pin group, gold on pedestal
Replacement can freely be plugged on pedestal by belonging to block.
In the present invention, the diameter and metal derby spacing of metal needle need to select suitably sized, preferably a diameter of 0.5-2mm
Metal needle cooperation adjacent spacing 2-6mm metal derby, reason is to take into account the support to melt and laser or X do not disturbed to penetrate
Line smoothly by melt, obtains more comprehensive scattering data.By taking metal needle diameter as an example, if the diameter of metal needle is less than
0.5mm can cause melt not supported effectively, and the diameter of metal needle is more than 2mm, and the effective coverage of observation can be made significantly to contract
Subtract, influence the comprehensive of data.For the line space design of metal derby, it will be unable to realize effective support to melt more than 6mm,
It is disturbed when less than 2mm laser or X-ray can be caused to pass through melt.
To solve this technical problem, the present invention takes following scheme：
The sample mount that a kind of polymer melt stretches online, the sample mount include displacement generating mechanism and support
Pin group, the support pin group are mounted on the displacement actuating station of displacement generating mechanism, and support pin is driven by displacement generating mechanism
Group movement, the support pin group include stent and multiple pins, and multiple pins are mutually parallel and compartment of terrain is fixed on stent, and
The extending direction of multiple pins of the support pin group is strictly consistent with the incident angle of laser or X-ray, and the stent is used
It is fixed in the displacement actuating station with the displacement generating mechanism, the displacement generating mechanism drives support pin group to move
It is dynamic, be supported multiple lower ends for the polymer melt sample being stretched of the support pin group, and do not stop into
Light is penetrated, incident light is allowed smoothly by the polymer melt sample being stretched, to be gathered so as to fulfill the on-line continuous of scattering data.
Further, the stent includes pin fixed frame and pedestal, and multiple pins are fixed on respectively on pin fixed frame, pin
Fixed frame is detachably connected with pedestal, and the pedestal is used to be fixed with the displacement actuating station of the displacement generating mechanism.
Further, the pin fixed frame is mounted on the pedestal pluggablely.
Further, the pin fixed frame be multiple fixed blocks, multiple fixed blocks be mutually parallel and be spaced it is equal, it is adjacent
Spacing between fixed block is 2-6mm.
Further, multiple pins are welded on the pin fixed frame, piece pin of each fixed block welding.
Further, a diameter of 0.5-2mm of the pin.
Further, the pin is iron pin, stainless pin or wolfram steel pin.
Further, the stent is metallic support.
Further, the displacement generating mechanism is the sliding equipment of two axis, for adjusting support pin group along its length
Displacement along short transverse of displacement and adjustment support pin group.
The present invention also provides the purposes for the sample mount that the polymer melt stretches online, are drawn for polymer melt
Stretch experiment.
By using preceding solution, the present invention can make polymer melt sample do not had after stretching it is apparent under
It falls into, and can allow laser or X-ray that can smoothly pass through sample, realize the continuity acquisition of scattering data, ensure the smooth of experiment
It carries out.
Description of the drawings
Fig. 1 is the online tensile test device total figure of polymer melt that the embodiment of the present invention 1 provides；
Fig. 2 is the sample mount usage state diagram that the polymer melt that the embodiment of the present invention 1 provides stretches online；
Fig. 3 is the side view for the support pin group that the embodiment of the present invention 1 provides；
Fig. 4 is the top view for the support pin group that the embodiment of the present invention 1 provides；
Fig. 5 is the top view for the support pin group that the embodiment of the present invention 2 provides.
Specific embodiment
Technical solution of the present invention is further elaborated with reference to the accompanying drawings and examples, present embodiment there can be difference
Form and be not understood as limited to explanation set forth herein.Identical reference numeral represents identical member always in text
Part, similar reference numeral represent similar element.
Embodiment 1：
With reference to figure 1, the online extension test of polymer melt 11 is carried out with the equipment of Fig. 1, the equipment is mainly including polymerization
The sample mount 10 and biaxial tensile test machine 14 that object melt stretches online, ccd image is installed on biaxial tensile test machine 14
Harvester 12, reflective mirror 13, laser or X-ray reception device 16 and heating unit 15, wherein heating unit 15 are used to heat
Polymer melt 11, ccd image harvester 12 can be heated by the acquisition polymer melt 11 of reflective mirror 13 and drawing process
In its cosmetic variation situation, so as to record the deformation of polymer melt 11,13 middle with hole of reflective mirror, laser or X are penetrated
Line is irradiated to through the hole among reflective mirror 13 on polymer melt 11, and laser or X-ray reception device 16 are placed on polymer
The rear of melt 11, laser or X-ray reception device 16 receive laser or X-ray scattered signal, and then analyzing polymers melt
11 properties.
With reference to figure 2, the sample mount that polymer melt stretches online includes displacement generating mechanism 101 and support pin group 102,
Displacement generating mechanism 101 is the sliding equipment of two axis, for adjusting the displacement of support pin group along its length and adjustment support pin
Displacement of the group along short transverse, displacement generating mechanism 101 can horizontal (left and right) adjusting 10-20mm, vertical (upper and lower) adjusting 10-
20mm drives support pin group 102 to move by displacement generating mechanism 101, and multiple be directed to of the support pin group is made to be stretched
The lower end of polymer melt sample 11 be supported, melt is avoided to collapse.The support pin group 102 includes stent and multiple
Pin, multiple pins are mutually parallel and compartment of terrain is fixed on stent, and the extending direction of multiple pins of the support pin group 102
It is strictly consistent with laser or X-ray incident direction, so as to laser or X-ray through the hole 131 among reflective mirror 13 be irradiated to by
It on the polymer melt sample 11 of stretching, will not be disturbed, realize the continuity acquisition of scattering data.
Supporting the concrete structure of pin group, support pin group includes 7 pins 1 and stent, stent are consolidated including pin with reference to figure 3 and Fig. 4
Determine 3,7 pins 1 of frame 2 and pedestal to be fixed on respectively on pin fixed frame, pin fixed frame is detachably connected with pedestal, and the pedestal is used
It is fixed in the displacement actuating station with the displacement generating mechanism.
Further, 7 pins 1 are all iron pin, and a diameter of 1mm is connected to by welding manner on pin fixed frame 2, pin
It is 2mm that the width of fixed frame 2, which is more than the distance between iron pin diameter, adjacent needles fixed frame 2, and pin fixed frame 2 can be on pedestal certainly
It is replaced by plug.
In order to avoid polymer melt contamination to displacement generating mechanism, boss 4 is equipped in 3 one end of pedestal, by pin fixed frame 2
On boss 4, pin group is entirely supported with lifting.
4 screw holes 5, bolt or screw are also arranged on pedestal 3 through screw hole 5 so that pedestal 3 is fixedly mounted on cunning
On platform.
The design of this sample mount can make polymer melt sample do not had after stretching it is apparent sink, and can allow laser or
X-ray can smoothly pass through sample, realize the on-line continuous acquisition of scattering data, ensure being smoothed out for experiment.
Embodiment 2：
As shown in figure 5, support pin group includes 6 wolfram steel pins 6, a diameter of 0.5mm, the width and tungsten of metal derby (not shown)
6 diameter of draw point is wide, and the distance between adjacent metal block 4mm, metal derby is fixed on pluggablely on boss 4, and wolfram steel pin 6 welds
On metal derby.
The extending direction for supporting 6 wolfram steel pins 6 in pin group is strictly consistent with the incident angle of laser or X-ray, described
Stent is used to be fixed with the displacement actuating station of the displacement generating mechanism, and the displacement generating mechanism drives support pin
Group movement, is supported multiple lower ends for the polymer melt sample being stretched of the support pin group, and does not hinder
Gear laser or X-ray gather smoothly by the polymer melt sample being stretched so as to fulfill the on-line continuous of scattering data.
Displacement generating mechanism is the sliding equipment of two axis, for adjusting the displacement of support pin group along its length and adjustment branch
Support displacement of the pin group along short transverse.
The width of metal derby and metal needle diameter are wide, are conducive to laser or X-ray is drawn online through polymer melt
The gap for the sample mount stretched offers convenience to the debugging of testing equipment.Moreover, during welding metal pin, with metal needle diameter etc.
Wide metal derby is easier to realize the locating effect to metal needle.
Embodiment 3：
The sample mount that a kind of polymer melt stretches online, the sample mount include displacement generating mechanism and support
Pin group, the support pin group are mounted on the displacement actuating station of displacement generating mechanism, and support pin is driven by displacement generating mechanism
Group movement, the support pin group include stent and multiple pins, and multiple pins are mutually parallel and compartment of terrain is fixed on stent, and
The extending direction of multiple pins of the support pin group is strictly consistent with the incident angle of laser or X-ray, and the stent is used
It is fixed in the displacement actuating station with the displacement generating mechanism, the displacement generating mechanism drives support pin group to move
It is dynamic, be supported multiple lower ends for the polymer melt sample being stretched of the support pin group, and do not stop into
Light is penetrated, incident light is allowed smoothly by the polymer melt sample being stretched, to be gathered so as to fulfill the on-line continuous of scattering data.
Displacement generating mechanism is the sliding equipment of two axis, for adjusting the displacement of support pin group along its length and adjustment branch
Support displacement of the pin group along short transverse.
The stent includes pin fixed frame and pedestal, and the pin fixed frame is mounted on the pedestal pluggablely,
Multiple pins are fixed on respectively on pin fixed frame, and the pedestal is used to carry out with the displacement actuating station of the displacement generating mechanism
It is fixed.The pin fixed frame is multiple metal derbies, and multiple metal derbies are mutually parallel and are spaced equal, the spacing of adjacent metal block
For 4mm.
The support pin group includes 8 metal needles, a diameter of 1.2mm, and metal needle is welded on metal needle diameter etc.
On wide metal derby, metal derby is removably connected with pedestal.
The design of this sample mount can make polymer melt sample do not had after stretching it is apparent sink, and can allow laser or
X-ray can smoothly pass through sample, realize the continuity acquisition of scattering data, ensure being smoothed out for experiment.
Embodiment 4：
The sample mount that a kind of polymer melt stretches online, the sample mount include displacement generating mechanism and support
Pin group, the support pin group are mounted on the displacement actuating station of displacement generating mechanism, and support pin is driven by displacement generating mechanism
Group movement, the support pin group include stent and multiple pins, and multiple pins are mutually parallel and compartment of terrain is fixed on stent, and
The extending direction of multiple pins of the support pin group is strictly consistent with the incident angle of laser or X-ray, and the stent is used
It is fixed in the displacement actuating station with the displacement generating mechanism, the displacement generating mechanism drives support pin group to move
It is dynamic, be supported multiple lower ends for the polymer melt sample being stretched of the support pin group, and do not stop into
Light is penetrated, incident light is allowed smoothly by the polymer melt sample being stretched, to be gathered so as to fulfill the on-line continuous of scattering data.
Displacement generating mechanism is the sliding equipment of two axis, for adjusting the displacement of support pin group along its length and adjustment branch
Support displacement of the pin group along short transverse.
The stent includes pin fixed frame and pedestal, is all that iron, described pin fixed frame is mounted on institute pluggablely
It states on pedestal, multiple pins are fixed on respectively on pin fixed frame, and the pedestal is for the displacement with the displacement generating mechanism
Actuating station is fixed.The pin fixed frame be multiple iron blocks, multiple iron blocks be mutually parallel and be spaced it is equal, adjacent iron block
Spacing is 5mm.
The support pin group includes 10 metal needles, and a diameter of 2mm, metal needle is welded on wide with metal needle diameter
Iron block on, 10 sets of iron blocks for welding metal needle, which are fixed on pedestal, forms support pin group, and iron block can freely insert on pedestal
Pull out replacement.
The design of this sample mount takes into account the support to melt and does not disturb laser or X-ray that can smoothly pass through melt, real
The on-line continuous acquisition of existing scattering data, ensures being smoothed out for experiment.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art are not departing from the principle of the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (10)
1. a kind of sample mount that polymer melt stretches online, it is characterised in that：The sample mount includes displacement
Mechanism and support pin group, the support pin group are mounted on the displacement actuating station of displacement generating mechanism, pass through displacement generating mechanism
The group movement of support pin is driven, the support pin group includes stent and multiple pins, and multiple pins are mutually parallel and compartment of terrain is fixed on
On stent, and the extending direction of multiple pins of the support pin group is strictly consistent with the incident angle of laser or X-ray, institute
The stent stated is used to be fixed with the displacement actuating station of the displacement generating mechanism, and the displacement generating mechanism drives branch
The movement of pin group is supportted, is supported multiple lower ends for the polymer melt sample being stretched of the support pin group, and
Do not stop incident light, allow incident light smoothly by the polymer melt sample being stretched, so as to fulfill the continuity of scattering data
Acquisition.
2. the sample mount that polymer melt according to claim 1 stretches online, it is characterised in that：The stent bag
Pin fixed frame and pedestal are included, multiple pins are fixed on respectively on pin fixed frame, and pin fixed frame is detachably connected with pedestal, the base
Seat is used to be fixed with the displacement actuating station of the displacement generating mechanism.
3. the sample mount that polymer melt according to claim 2 stretches online, it is characterised in that：The pin is fixed
Frame is mounted on the pedestal pluggablely.
4. the sample mount that polymer melt according to claim 2 stretches online, it is characterised in that：The pin is fixed
Frame is multiple fixed blocks, and multiple fixed blocks are mutually parallel and are spaced equal, and spacing between adjacent fixed block is 2-6mm.
5. the sample mount that polymer melt according to claim 4 stretches online, it is characterised in that：Multiple pins
It is welded on the pin fixed frame, piece pin of each fixed block welding.
6. the sample mount that polymer melt according to claim 1 stretches online, it is characterised in that：The multiple pin
A diameter of 0.5-2mm.
7. the sample mount that polymer melt according to claim 1 stretches online, it is characterised in that：Multiple pins
For iron pin, stainless pin or wolfram steel pin.
8. the sample mount that polymer melt according to claim 1 stretches online, it is characterised in that：The stent is gold
Belong to stent.
9. the sample mount that polymer melt according to claim 1 stretches online, it is characterised in that：The displacement occurs
Mechanism is the sliding equipment of two axis, for adjusting the displacement of support pin group along its length and adjustment support pin group along short transverse
Displacement.
10. the purposes for the sample mount that the polymer melt any one of claim 1-9 stretches online, for polymer
The on-line testing of melt drawn experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259467.8A CN108072591B (en) | 2017-12-04 | 2017-12-04 | Sample support for polymer melt online stretching and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259467.8A CN108072591B (en) | 2017-12-04 | 2017-12-04 | Sample support for polymer melt online stretching and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108072591A true CN108072591A (en) | 2018-05-25 |
| CN108072591B CN108072591B (en) | 2020-01-17 |
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| CN108072591B (en) | 2020-01-17 |
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