CN106706473B - A kind of device of quick obtaining polymer melt surface contact angle - Google Patents

A kind of device of quick obtaining polymer melt surface contact angle Download PDF

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Publication number
CN106706473B
CN106706473B CN201710024649.0A CN201710024649A CN106706473B CN 106706473 B CN106706473 B CN 106706473B CN 201710024649 A CN201710024649 A CN 201710024649A CN 106706473 B CN106706473 B CN 106706473B
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control system
temperature control
test cabinet
temperature
contact angle
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CN106706473A (en
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李熹平
宫宁宁
刘傅文
杨灿
汪彬
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ZHEJIANG HENGDAO TECHNOLOGY CO LTD
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Zhejiang Normal University CJNU
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects

Abstract

The present invention discloses a kind of device of quick obtaining polymer melt surface contact angle, including temperature control system, test cabinet, laser source, photographic device and protective gas steel cylinder;Test cabinet includes shell, thermal insulation layer and built-in heat block, and test cabinet has gas vent and gas access, and test cabinet, which is equipped with, runs through peep hole, muti-piece optical quartz glass is equipped in peep hole, gas access is connected with protective gas steel cylinder;Heating pipeline and cooling line are equipped at intervals in built-in heat block, temperature control system tests indoor temperature by heating pipeline and cooling line control;Laser source is set to through peep hole side, and photographic device, which is set to, runs through the peep hole other side;Laser source and photographic device with calculate mechatronics.Temperature control system can will test indoor temperature control at 20~300 DEG C, and precision is ± 0.1 DEG C.Protective gas is filled in test cabinet, polymer never degenerates.Sheet metal and polymer directly contact, and the contact angle measured is more accurate.

Description

A kind of device of quick obtaining polymer melt surface contact angle
Technical field
The present invention relates to alloy manufacturing technology fields, more particularly to a kind of quick obtaining polymer melt surface contact angle Device.
Background technique
The manufacture of lightweight, high-strength component is increasingly obtained in fields such as aerospace, automobile manufacture, communication, medical treatment with applying Pay attention to.Using the respective advantage of metal alloy (aluminum/magnesium alloy, high-strength steel sheet) and polymer, quick obtaining quality is small, intensity High, engineering components that are meeting specific function demand are the forward position focus of recent domestic research.Metal surface is carried out pre- Processing obtains the configuration of surface with certain micro/nano level hole, and it is micro- that polymer melt is then injected directly into metal surface Structure is the new manufacturing process of one kind developed in recent years to form metal-polymer composite high-strength part.The forming In the process, polymer is in the wetability of metal surface, is an important factor for influencing metal-polymer composite component boundary strength, Wetability is usually indicated with contact angle.I.e. when contact angle of the polymer melt in metal surface is greater than 90 °, illustrate under this condition Metal surface is poor to the wetability of polymer, and melt will receive inhibition when metal surface is flowed, to influence metal- The interface binding power of polymer.Therefore, accurately test different condition under polymer melt metal surface contact angle, to judgement Whether metal surface state meets forming requirements and determines that injection technological parameter has great importance.
In the prior art, it generallys use drop-method drop is added dropwise on different substrate materials surface, it is biggish to be not suitable for viscosity Polymer melt, and the temperature range of the device at 200 DEG C hereinafter, being unsatisfactory for wanting polymer melt fast melt and test It asks.
And heated using Quartz stove tube is placed directly in resistance furnace, it is 650 DEG C -800 DEG C that the temperature of heating is higher, It is difficult to control accurately the temperature of measurement chamber under low temperature, is not suitable for the measurement of the contact angle of polymer melt.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of can satisfy to polymer melt fast melt and test It is required that temperature control is accurate, the quick obtaining polymer melt surface for not influencing contact situation of the drop with metal surface is contacted The device at angle.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of device of quick obtaining polymer melt surface contact angle, including temperature control system, test cabinet, Laser source, photographic device and protective gas steel cylinder;The test cabinet include shell and be disposed in the housing portion thermal insulation layer and Built-in heat block, the test cabinet are additionally provided with gas vent and gas access, and the test cabinet is provided with through peep hole, institute It states and is fixedly installed muti-piece optical quartz glass in peep hole, the gas access is connected with the protective gas steel cylinder It connects;Heating pipeline is arranged at intervals in the built-in heat block and cooling line, the temperature control system pass through the heating pipeline With the cooling line control indoor temperature of test;The laser source is set to described through peep hole side, the camera shooting Device is set to described through the peep hole other side;The laser source and the photographic device with calculate mechatronics.
Optionally, the built-in heat block includes top plate, side plate and bottom plate, and the base plate thickness is greater than the top plate and side The thickness of plate.
Optionally, temperature sensor, the temperature sensor and institute are provided in the middle part of the bottom plate and on the side plate State temperature control system electrical connection.
Optionally, the gas access is located at the test cabinet bottom, and the gas vent is located at the test cabinet side.
Optionally, the optical quartz glass is four pieces, is respectively equipped with one piece on the shell and the side plate of every side.
Optionally, the temperature control system includes the first temperature control system and the second temperature control system, the first temperature control system control The temperature of the bottom plate is made, second temperature control system controls the top plate and the side plate temperature.
Optionally, second thermal insulation layer is provided between the bottom plate and the side plate.
The present invention achieves following technical effect compared with the existing technology:
The device of quick obtaining polymer melt surface contact angle in the present invention, temperature control system can will be tested indoor Temperature is controlled at 20~300 degrees Celsius, and control precision is ± 0.1 degree Celsius.Protective gas is full of in test cabinet, polymer will not It is rotten.Sheet metal and polymer directly contact, and temperature change, the contact measured is not present before contacting with sheet metal in polymer Angle is more accurate.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the device of quick obtaining polymer melt surface contact angle of the present invention;
Fig. 2 is the structural schematic diagram of test cabinet in the device of quick obtaining polymer melt surface contact angle of the present invention;
Fig. 3 is the Contact-angle measurement result schematic diagram of the device of quick obtaining polymer melt surface contact angle of the present invention;
Fig. 4 is the measurement result schematic diagram of the device of quick obtaining polymer melt surface contact angle of the present invention.
Description of symbols: 1, temperature control system;2, photographic device;3, test cabinet;4, laser source;5, protective gas steel cylinder; 6, computer;7, pipeline is heated;8, cooling line;9, temperature sensor;10, built-in heat block;11, gas access;12, optics Quartz glass;13, thermal insulation layer;14, shell;15, gas vent;16, sheet metal;17, polymer beads.
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 embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of devices of quick obtaining polymer melt surface contact angle, to solve existing skill In art when measuring contact angle of the polymer in metal surface, polymer oxygenolysis in temperature-rise period, solution environment temperature is not Stablize, temperature adjusts inaccurate problem, carries out so as to the contact angle easily and accurately to polymer in metal surface Measurement.
Based on this, the device of quick obtaining polymer melt surface contact angle provided by the invention comprising temperature control system, Test cabinet, laser source, photographic device and protective gas steel cylinder;The test cabinet include shell and be disposed in the housing portion every Thermosphere and built-in heat block, the test cabinet are additionally provided with gas vent and gas access, and the test cabinet is provided with through sight Hole is examined, it is described that muti-piece optical quartz glass, the gas access and the protective gas steel are fixedly installed in peep hole Bottle is connected;Heating pipeline and cooling line are arranged at intervals in the built-in heat block, the temperature control system is added by described Pipe line and the cooling line control indoor temperature of test;The laser source is set to described through peep hole side, institute State photographic device be set to it is described through the peep hole other side;The laser source and the photographic device are electrically connected with computer It connects.
The present invention passes through heating pipeline using temperature control system and indoor temperature is tested in cooling line control, and heating is rapid, Solution ambient temperature-stable, using laser source as light source, the image clearly for acquiring photographic device is accurate, to realize to poly- Contact angle of the object in metal surface is closed to accurately measure.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
Embodiment one:
As depicted in figs. 1 and 2, the device of the quick obtaining polymer melt surface contact angle in the present invention, including temperature control System 1, test cabinet 3, laser source 4, photographic device 2 and protective gas steel cylinder 5;The test cabinet 3 is including shell 14 and is set to institute The thermal insulation layer 13 and built-in heat block 10 inside shell 14 are stated, the test cabinet 3 is additionally provided with gas vent 15 and gas access 11, the test cabinet 3 is provided with through peep hole, described to be fixedly installed four pieces of optical quartz glass 12 in peep hole, The gas access 11 is connected with the protective gas steel cylinder 5;Heating pipeline 7 is arranged at intervals in the built-in heat block 10 With cooling line 8, the temperature control system 1 controls the temperature in the test cabinet 3 by the heating pipeline 7 and cooling line 8; The laser source 4 runs through peep hole side described in being set to, and the photographic device 2 is set to described through the peep hole other side; The laser source 4 and the photographic device 2 are electrically connected with computer 6;
In this specific embodiment, the built-in heat block 10 includes top plate, side plate and bottom plate, and the base plate thickness is greater than The thickness of the top plate and side plate;Temperature sensor 9, the temperature sensing are provided in the middle part of the bottom plate and on the side plate Device 9 is electrically connected with the temperature control system 1;The gas access 11 is located at 3 bottom of test cabinet, and the gas vent 15 is located at 3 side of test cabinet;One piece of optical quartz glass 12 is respectively equipped on the shell 14 and the side plate of every side;Institute Stating temperature control system 1 includes the first temperature control system and the second temperature control system, and first temperature control system controls the temperature of the bottom plate, Second temperature control system controls the top plate and the side plate temperature, this setting so that environment temperature in test cabinet 3 and The temperature of metal material can be controlled individually, be independent of each other, and keep measurement result more accurate true;The bottom plate and the side plate Between be provided with second thermal insulation layer, the second thermal insulation layer can make the bottom plate and the side plate during being heated or cooled It is independent of each other, is preferably minimized influence of the environment temperature to sheet metal 16 in test cabinet 3.
In use, tested sample, that is, sheet metal 16 and polymer beads 17 are put on the bottom plate in test cabinet 3, seal Test cabinet 3 closes gas vent 15, and opening protective gas steel cylinder 5 makes to be then shut off gas full of protective gas in test cabinet 3 Entrance 11 opens gas vent 15, protective gas is discharged, is repeated a number of times, makes to be completely filled with protection gas in test cabinet 3 Body.Then test temperature is set, temperature control system 1 is started.6 system of simultaneous computer opens laser source 4, and laser passes through through observation Illuminate sample in test cabinet 3 in hole.Side plate, top plate mainly heat 3 cavity of test cabinet in a manner of heat radiation, to heat polymer Particle 17, bottom plate directly heat sheet metal 16 in thermo-conducting manner.Sheet metal 16 mainly heats in thermo-conducting manner Polymer beads 17.Polymer beads 17 are rapidly heated to set temperature, and under the control of temperature control system 1, keep temperature It is constant.At this point, 6 system of computer, which starts photographic device 2, carries out Image Acquisition and processing to the contact angle of melt at such a temperature, Obtain corresponding contact angle.After acquisition, temperature is reset, temperature control system 1 controls test cabinet 3 and reaches another temperature shape Then state obtains the melt at a temperature of resetting in the contact angle of sheet metal 16.In heating process, temperature sensor 9 can be distinguished The temperature of test cabinet 3 and sheet metal 16 is fed back, prevents heating temperature is excessively high from decompose polymer melt.When this kind of gold After category plate 16 is completed, the control of temperature control system 1 cooling medium respectively enters the cooling line 8 in built-in heat block 10, makes 3 temperature of test cabinet is reduced rapidly to safe temperature.Then, protective gas steel cylinder 5, laser source 4 and camera shooting acquisition system are closed, is beaten Test cabinet 3, remetal material 16 and polymer beads 17 are opened, next wheel measurement is carried out.
Example one:
According to the use process in embodiment one, at 190 DEG C of test polypropylene PP 6061 surface of aluminium alloy contact angle, Sample to be tested is put into test cabinet 3, protective gas nitrogen is passed through.Test temperature is set as 190 DEG C, starts temperature control system 1 and laser source 4.PP particle is rapidly heated to set temperature under the action of top plate, side plate and bottom plate, after temperature is stablized, calculates 6 system of machine starts photographic device 2 and carries out Image Acquisition and processing to the contact angle of melt at such a temperature, obtains corresponding contact Angle image.After the sheet metal 16 is completed, temperature control system 1 controls cooling medium and respectively enters top plate, side plate and bottom plate Cooling line 8 makes 3 temperature of test cabinet be reduced rapidly to safe temperature.Then, protective gas steel cylinder 5, laser source 4, camera shooting are closed Acquisition system opens test cabinet 3, remetal material 16 and polymer beads 17, carries out next round test, obtains PP another The contact angle on different aluminum alloys surface.Fig. 3 is at 190 DEG C that test obtains, and PP is under four kinds of different aluminum alloys surface topographies Contact angle image.
Example two:
According to the use process in embodiment one, polypropylene PP is tested in the contact angle on 6061 surface of aluminium alloy with temperature Change procedure.Sample to be tested is put into test cabinet 3, protective gas nitrogen is passed through.The first test temperature is set as 170 DEG C, start temperature control system 1 and laser source 4.PP particle is rapidly heated under the collective effect of top plate, side plate and bottom plate to setting Temperature, after temperature is stablized, 6 system of computer starts photographic device 2 and carries out Image Acquisition to the contact angle of melt at such a temperature And processing, obtain corresponding contact angle.After being completed at this temperature, 175 DEG C of temperature are reset, continues to heat, is somebody's turn to do At a temperature of contact angle, then proceed to set temperature until be completed, obtain PP under same aluminum alloy surface different temperatures Contact angle numerical value, as shown in Figure 4.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments Explanation be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification Appearance should not be construed as limiting the invention.

Claims (5)

1. a kind of device of quick obtaining polymer melt surface contact angle, which is characterized in that including temperature control system, test cabinet, Laser source, photographic device and protective gas steel cylinder;The test cabinet include shell and be disposed in the housing portion thermal insulation layer and Built-in heat block, the test cabinet are additionally provided with gas vent and gas access, and the test cabinet is provided with through peep hole, institute It states and is fixedly installed muti-piece optical quartz glass in peep hole, the gas access is connected with the protective gas steel cylinder It connects;Heating pipeline is arranged at intervals in the built-in heat block and cooling line, the temperature control system pass through the heating pipeline With the cooling line control indoor temperature of test;The laser source is set to described through peep hole side, the camera shooting Device is set to described through the peep hole other side;The laser source and the photographic device with calculate mechatronics;
The built-in heat block includes top plate, side plate and bottom plate, and the base plate thickness is greater than the thickness of the top plate and side plate;
The temperature control system includes the first temperature control system and the second temperature control system, and first temperature control system controls the bottom plate Temperature, second temperature control system control the top plate and the side plate temperature.
2. the device of quick obtaining polymer melt surface contact angle according to claim 1, which is characterized in that the bottom It is provided with temperature sensor in the middle part of plate and on the side plate, the temperature sensor is electrically connected with the temperature control system.
3. the device of quick obtaining polymer melt surface contact angle according to claim 1, which is characterized in that the gas Body entrance is located at the test cabinet bottom, and the gas vent is located at the test cabinet side.
4. the device of quick obtaining polymer melt surface contact angle according to claim 1, which is characterized in that the light Learning quartz glass is four pieces, is respectively equipped with one piece on the shell and the side plate of every side.
5. the device of quick obtaining polymer melt surface contact angle according to claim 1, which is characterized in that the bottom Second thermal insulation layer is provided between plate and the side plate.
CN201710024649.0A 2017-01-13 2017-01-13 A kind of device of quick obtaining polymer melt surface contact angle Active CN106706473B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110274850A (en) * 2019-07-30 2019-09-24 西南交通大学 A kind of contact angle test device and test method
CN111307668A (en) * 2019-11-24 2020-06-19 中北大学 Gas-liquid interfacial tension and wettability measuring device under high and low temperature conditions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353620A (en) * 2011-06-21 2012-02-15 吉林大学 Apparatus and method for determining high temperature wettability
JP2013029392A (en) * 2011-07-28 2013-02-07 Ihi Corp Contact angle measurement device and prediction method for behavior of combustion ash in boiler furnace
CN103994952A (en) * 2014-05-19 2014-08-20 上海大学 Device for synchronously testing metal wetting angle and DSC (Differential Scanning Calorimetry) curve by using extrusion method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353620A (en) * 2011-06-21 2012-02-15 吉林大学 Apparatus and method for determining high temperature wettability
JP2013029392A (en) * 2011-07-28 2013-02-07 Ihi Corp Contact angle measurement device and prediction method for behavior of combustion ash in boiler furnace
CN103994952A (en) * 2014-05-19 2014-08-20 上海大学 Device for synchronously testing metal wetting angle and DSC (Differential Scanning Calorimetry) curve by using extrusion method

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