CN212780536U

CN212780536U - Polymer emulsion film-forming property testing device

Info

Publication number: CN212780536U
Application number: CN202021214369.XU
Authority: CN
Inventors: 张岩; 程双
Original assignee: Baochen United Langfang Technology Co ltd
Current assignee: Baochen United Langfang Technology Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-23
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a polymer emulsion film forming ability testing arrangement, scribble membrane platform and coater including airtight test box, automatic device, warm and humid adjusting device, sample viewing aperture, sample of filming, the top of airtight test box is equipped with the sample viewing aperture, install the inside one corner of airtight test box warm and humid adjusting device, the inside horizontal installation of airtight test box has the sample scribbles the membrane platform, the sample is scribbled the both sides of membrane platform and is installed the automatic device of filming, install on the automatic device of filming the coater. The difference and the process of the film forming performance of the polymer emulsion can be intuitively known; make the test standardization of polymer emulsion through standardization test process, under certain temperature, humidity, get rid of air flow rate's influence to for the research provides more accurate test foundation, avoid the experimental error that the film forming condition of differentiation brought to bring unnecessary loss and delay for polymer emulsion's research, simple and practical.

Description

Polymer emulsion film-forming property testing device

Technical Field

The utility model relates to a contrast field is surveyd to polymer emulsion's film forming property and film forming effect, concretely relates to polymer emulsion film forming property testing arrangement.

Background

Polymer emulsions, also known as resins, polymers, film formers, coating binders, and the like. Latex paints adhere the components together by emulsion to form a film and firmly adhere to a substrate, the so-called coating. Therefore, the emulsion is the most important component of the coating film, and the performance of the coating is mainly determined by the performance of the emulsion to a certain extent.

Under the action of force generated by the surface of the water-shrinking film, it is also considered that under the action of capillary force or surface tension and the like, if the temperature is higher than the minimum film-forming temperature (MFT), emulsion polymer particles deform and coalesce into a film, and molecular chains at the interface of the polymer diffuse, permeate and wind mutually, so that the performance of the coating film is further improved, and a continuous film with certain performance is formed.

The emulsion in the emulsion paint has the functions of increasing the strength of the coating and improving the scrubbing resistance of a coating, and meanwhile, when the coating is applied to an outer wall, the ageing resistance of the coating can be improved by increasing the amount of the emulsion, and the service life of the coating is prolonged.

At present, the film forming performance of the polymer emulsion is mainly observed by simply manufacturing a coating film by using an applicator, most of the polymer emulsion coating film drying processes are observed under the room temperature condition, the film forming performance of the polymer emulsion is different under different temperatures, different humidities and different air flow rates, and under the test condition, the film forming performance of different polymer emulsions has no normative and comparative properties.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a polymer emulsion film forming performance testing device, which can simply and efficiently grasp the tolerance range of the pH value of the polymer emulsion.

According to the technical scheme that this application embodiment provided, a polymer emulsion film forming ability testing arrangement, including airtight test box, automatic device, warm and humid adjusting device, sample viewing aperture, sample coating station and coater of filming, the top of airtight test box is equipped with the sample viewing aperture, install the inside one corner of airtight test box warm and humid adjusting device, the inside level of airtight test box is installed the sample coating station, the both sides of sample coating station are installed the automatic device of filming, install on the automatic device of filming the coater.

The utility model discloses in, the sample viewing aperture includes electron observation screen and high definition clear glass viewing aperture, the electron observation screen is in through observing a mouthful pivot movable mounting airtight test box is last, the below of electron observation screen is equipped with the clear glass viewing aperture.

The utility model discloses in, automatic device of filming includes automatic reciprocating device and coater support, automatic reciprocating device installs the lower extreme of coater support, automatic reciprocating device installs the bottom of airtight test box.

In the utility model, the coater is clamped on the coater support through the handles at the two ends.

To sum up, the beneficial effect of this application: the difference and the process of the film forming performance of the polymer emulsion can be intuitively known; the method has the advantages that the test of the polymer emulsion is standardized through the standardized test process, the influence of the air flow rate is eliminated under certain temperature and humidity, so that more accurate test basis is provided for research, unnecessary loss and delay of the research of the polymer emulsion caused by experimental errors caused by differentiated film forming conditions are avoided, and the method is simple and practical; meanwhile, the film forming process is recorded through the electronic observation screen, so that a tester can do other work during the film forming process, the time is saved, and the working efficiency is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention.

Reference numbers in the figures: a closed test box-1; an automatic film coating device-2; an automatic reciprocating device-21; an applicator holder-22; a temperature and humidity adjusting device-3; sample view port-4; an electronic viewing screen-41; a clear glass viewing port-42; sample coating table-5; an applicator-6.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, a polymer emulsion film-forming property testing device includes a sealed testing box 1, an automatic film coating device 2, a temperature and humidity adjusting device 3, a sample observation port 4, a sample coating table 5 and a coater 6, wherein the sealed testing box 1 is a sealed heat-insulating structure and can ensure that the temperature and humidity in the box are changed as little as possible. The top of airtight test box 1 is equipped with sample viewing aperture 4, install in airtight test box 1's inside one corner warm and humid adjusting device 3, warm and humid adjusting device 3 can adjust the temperature and humidity in the airtight test box 1 to make it guarantee that there is not great fluctuation in certain extent, provide stable humiture condition for polymer emulsion film drying. The sample coating table 5 is horizontally arranged in the closed test box 1, and the sample coating table 5 is a platform for coating, has a smooth and flat surface, and cannot affect the coating of the polymer emulsion. The automatic coating device 2 is installed on two sides of the sample coating platform 5, and the coater 6 is installed on the automatic coating device 2. The spreader 6 is snapped onto the spreader bracket 22 by handles at both ends. The coating device 6 is a standard coating device, and different types of coating devices can be selected according to requirements.

The sample observation port 4 comprises an electronic observation screen 41 and a high-definition transparent glass observation port 42, wherein the electronic observation screen 41 can record the film forming process of the polymer emulsion through a camera arranged in the closed test box 1 and then can be magnified and checked through the electronic screen. The electronic observation screen 41 is movably installed on the closed test box 1 through an observation port rotating shaft 43, the glass observation port 42 at the lower edge of the electronic observation screen 41 can be exposed through the observation port rotating shaft 43, and the transparent glass observation port 42 is arranged below the electronic observation screen 41. The transparent glass observation port 42 is made of high-definition glass, and can clearly observe the film forming process and the film forming effect of the polymer emulsion in the closed test box 1.

The automatic film coating device 2 comprises an automatic reciprocating device 21 and a coater support 22, the automatic reciprocating device 21 is installed at the lower end of the coater support 22, the automatic reciprocating device 21 is installed at the bottom of the closed test box 1, and the automatic reciprocating device 21 can enable the coater support 22 to reciprocate on the sample coating table 5 at a constant speed.

In the embodiment, firstly, the power supply of the device is turned on, the temperature and humidity adjusting device 3 is turned on, the test substrate is placed on a coating table 5 through a sample observation port 4 and is fixed, and a proper coater 6 is selected to be clamped on a coater support 22 for fixing;

secondly, after the temperature and humidity are stable, a certain amount of sample to be tested is dripped on a test substrate, the automatic film coating device 2 is opened for film coating, the sample observation port 4 is immediately closed after the spreader 6 is taken down, and the power supply of the electronic observation screen is opened for recording;

then, waiting for the coating film to be completely dried, during which observation can be performed through the electronic observation screen 41 or the transparent glass observation port 42;

finally, by repeating the steps or simultaneously carrying out a plurality of devices, the film forming characteristics of each polymer emulsion can be known in the process by comparing the film forming performances of different polymer emulsions.

The foregoing description is only exemplary of the preferred embodiments of the application and is provided for the purpose of illustrating the general principles of the technology and the like. Meanwhile, the scope of the invention according to the present application is not limited to the technical solutions in which the above-described technical features are combined in a specific manner, and also covers other technical solutions in which the above-described technical features or their equivalent are combined arbitrarily without departing from the inventive concept described above. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A polymer emulsion film forming performance testing device is characterized in that: including airtight test box (1), automatic device (2) of filming, warm and humid adjusting device (3), sample viewing aperture (4), sample coating table (5) and spreader (6), the top of airtight test box (1) is equipped with sample viewing aperture (4), install the inside one corner of airtight test box (1) warm and humid adjusting device (3), the inside horizontal installation of airtight test box (1) has sample coating table (5), install the both sides of sample coating table (5) automatic device (2) of filming, install on the automatic device (2) of filming spreader (6).

2. The polymer emulsion film-forming property testing device according to claim 1, characterized in that: sample viewing aperture (4) are including electron observation screen (41) and high definition clear glass viewing aperture (42), electron observation screen (41) are in through observing a mouthful pivot (43) movable mounting on airtight test box (1), the below of electron observation screen (41) is equipped with clear glass viewing aperture (42).

3. The polymer emulsion film-forming property testing device according to claim 1, characterized in that: the automatic film coating device (2) comprises an automatic reciprocating device (21) and an applicator support (22), wherein the automatic reciprocating device (21) is arranged at the lower end of the applicator support (22), and the automatic reciprocating device (21) is arranged at the bottom of the closed test box (1).

4. The polymer emulsion film-forming property testing device as claimed in claim 3, wherein: the spreader (6) is clamped on the spreader bracket (22) through handles at two ends.