CN217006833U

CN217006833U - Device for detecting solvent resistance of rubber and plastic material

Info

Publication number: CN217006833U
Application number: CN202121995805.6U
Authority: CN
Inventors: 彭旭锵; 金辉乐; 陈雨柔; 陈锡安; 李俊; 王舜; 陈�光
Original assignee: Wenzhou University
Current assignee: Wenzhou University
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-07-19
Anticipated expiration: 2031-08-23

Abstract

The utility model belongs to the field of material science tests, and particularly relates to a device for detecting the solvent resistance of a rubber and plastic material. When the device is used, the device is combined with an electronic analytical balance, a supporting disc is arranged on a base of a non-weighing area of the balance, a bearing base is arranged on a weighing disc of the balance, a liquid container (such as a common beaker in a laboratory) is placed on the supporting disc, a sample to be tested is placed in a first container, the first container is positioned in an inner cavity of the liquid container, test liquid is added into the liquid container, the liquid level of the test liquid is higher than that of the sample to be tested, at the moment, the reading of the electronic analytical balance is recorded again after being soaked for a certain time, and the mass loss of the sample to be tested in the test liquid can be determined according to the difference value of the readings of the electronic analytical balance, so that the rubber and plastic material solvent resistance (such as acid resistance and alkali resistance) can be quantitatively analyzed.

Description

Device for detecting solvent resistance of rubber and plastic material

Technical Field

The utility model belongs to the field of material science tests, and particularly relates to a device for detecting the solvent resistance of a rubber and plastic material.

Background

In the material science, need to test acid resistance, alkali resistance and to some performance under the special liquid environment of material, in the prior art, the acid resistance or alkali resistance of test material is put into acidizing fluid or alkali lye or special liquid, through weighing the weight before and after the test, calculates the weight difference and evaluates its performance. Since the test is performed by immersing the test specimen in a liquid, the weight of the test specimen after the test is weighed, and the test specimen needs to be washed and dried.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a device for detecting the solvent resistance of a rubber plastic material.

The technical scheme adopted by the utility model is as follows: a device for detecting the solvent resistance of rubber and plastic materials is characterized in that: the container support device comprises a bearing base, a support rod and a first container, wherein one end of the support rod is connected with the bearing base, the other end of the support rod extends upwards and is bent to form a container support part, a hanging arm is arranged at the upper end of the first container, and the first container is connected with the container support part through the hanging arm and is hung on the support rod;

the first container is provided with a plurality of holes communicated with the inside and the outside;

the support plate is arranged above the bearing base and is arranged independently relative to the bearing base.

Still include the second container, the second container sets up on the supporting disk, first container is located in the second container.

Be equipped with the fluting on the supporting disk, the bracing piece passes the fluting extends to the supporting disk top from the supporting disk bottom.

The supporting disk bottom is equipped with the pillar, be equipped with certain distance between supporting disk bottom surface and the upper surface of bearing base.

The first container is made of polytetrafluoroethylene.

The upper end of the middle part of the container supporting part is provided with a limiting groove, the hanging arm is limited in the limiting groove, and the gravity center of the first container and the gravity center of the bearing base are located on the same longitudinal line.

And a limiting ring seat is arranged on the bottom surface in the first container.

The side wall in the first container is provided with at least two longitudinal sliding grooves which are longitudinally arranged and a horizontal limiting groove which is communicated with the longitudinal sliding grooves; the pressing frame comprises a handle part and supporting rods which are connected with the lower end part of the handle part and correspond to the number of the longitudinal sliding grooves and the included angles.

The utility model has the following beneficial effects: when the device is used, the device is combined with an electronic analytical balance, a supporting disc is arranged on a base of a non-weighing area of the balance, a bearing base is arranged on a weighing disc of the balance, a liquid container (such as a common beaker in a laboratory) is placed on the supporting disc, a sample to be tested is placed in a first container, the first container is positioned in an inner cavity of the liquid container, test liquid is added into the liquid container, the liquid level of the test liquid is higher than that of the sample to be tested, at the moment, the reading of the electronic analytical balance is recorded again after being soaked for a certain time, and the mass loss of the sample to be tested in the test liquid can be determined through the difference of the readings of the electronic analytical balance, so that the performance (such as acid resistance and alkali resistance) of the test liquid of the device can be quantitatively analyzed. The cleaning step can be eliminated. Meanwhile, as the tetrafluoroethylene material is adopted, the container is resistant to strong acid, strong alkali and various organic solvents such as formic acid, formaldehyde, tetrahydrofuran and the like, and can stably work for a long time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive labor.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of a load bearing portion of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a test according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view (a) and a top view (b) of a first container in an embodiment of the utility model;

FIG. 5 is a top view (a) and a front view (b) of a hold-down frame in accordance with an embodiment of the present invention;

in the figures, 1, support disc; 2, a load bearing base; 3, supporting the rod; 4, hanging arms; 5, a first container; 501, holes; 502, a stop ring seat; 503, a longitudinal chute; 504, horizontal limit groove; 6, a pressing frame; 601, a handle portion; 602, a strut; 7, a pillar; 8, a container support; 801, limiting grooves; 9, slotting; 10, a second container; 1101, an electronic analytical balance weighing area; 1102, a non-weighing area of an electronic analytical balance.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are only used for convenience of expression and should not be construed as a limitation to the embodiments of the present invention, and this is not described in any one embodiment in the following embodiments.

The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.

As shown in fig. 1, a device for detecting solvent resistance of rubber and plastic materials comprises a bearing base 2, a support rod 3 and a first container 5, wherein one end of the support rod 3 is connected with the bearing base 2, the other end of the support rod extends upwards and is bent to form a container support part 8, a hanging arm 4 is arranged at the upper end of the first container 5, and the first container 5 is connected with the container support part 8 through the hanging arm 4 and is hung on the support rod 3;

the first container 5 is provided with a plurality of holes 501 communicated with the inside and the outside;

still including supporting disk 1, supporting disk 1 sets up bearing base 2 top and relative bearing base 2 independent setting.

When the device is used, as shown in fig. 3, the device is used in combination with an electronic analytical balance, a support plate 1 is arranged on a base (namely, a non-weighing area 1102 of the electronic analytical balance), a bearing base 2 is arranged on a weighing plate (namely, a weighing area 1101 of the electronic analytical balance) of the balance, a second container 10 (such as a beaker commonly used in a laboratory) is arranged on the support plate 1, a sample to be tested is arranged in the first container 2, the first container 2 is positioned in an inner cavity of the second container 10, a test liquid is added into the second container 10, the liquid level of the test liquid is higher than that of the sample to be tested, at this time, the reading of the electronic analytical balance is recorded, after the sample is soaked for a certain time, the reading of the electronic analytical balance is recorded again, and the mass loss of the sample to be tested in the test liquid can be determined according to the difference value of the reading of the electronic analytical balance, so as to quantitatively analyze the performance of the sample.

Wherein, first container 5 need soak in test liquid and can not have quality loss in the test, otherwise can seriously influence the test precision, consequently to conventional acid-fast, alkali-fast test, first container 5 adopts polytetrafluoroethylene material can, its acid-fast, alkali-fast performance is verified, accords with above-mentioned requirement. And the polytetrafluoroethylene material is a light material, and because the range of the accurate measurement mass of the electronic analytical balance is small, the polytetrafluoroethylene material is not easy to cause the weighing capacity to exceed the standard range, so that the reading is not accurate enough. Meanwhile, the bearing base 2, the support rod 3, the hanging arm 4 and the container support part 8 are made of light materials, such as polytetrafluoroethylene materials.

As shown in fig. 1, preferably, the supporting plate 1 is provided with a slot 9, and the supporting rod 3 extends from the bottom of the supporting plate 1 to above the supporting plate 1 through the slot 9.

The bottom of the supporting plate 1 is provided with a pillar 7, and as shown in fig. 3, the pillar 7 is arranged to enable a certain distance to be reserved between the bottom surface of the supporting plate 1 and the upper surface of the bearing base 2.

The upper end of the middle part of the container supporting part 8 is provided with a limiting groove 801, the hanging arm 4 is limited in the limiting groove 801, and the gravity center of the first container 5 and the gravity center of the bearing base 2 are positioned on the same longitudinal line.

A limit ring seat 502 is arranged on the bottom surface in the first container 5. The position of the stop ring seat 502 ensures that the distance between the position of the center of gravity of the tested sample after being placed and the longitudinal direction of the center of gravity of the first container 5 is within a certain allowable error range.

The hanging arm 4 is fixed on the container supporting part 8 by adopting a detachable connecting structure. The position of the hanging arm 4 is prevented from moving in the test process by the arrangement, and the detachable connecting structure can be fixed by adopting a screw fastening structure.

As shown in fig. 4, at least two longitudinal sliding grooves 503 arranged longitudinally and a horizontal limiting groove 504 communicated with the longitudinal sliding grooves 503 are arranged on the side wall in the first container 5; as shown in fig. 5, the pressing frame 6 further comprises a handle portion 601 and supporting rods 602 connected with the lower end portion of the handle portion 601 and corresponding to the number and the arrangement included angle of the longitudinal sliding grooves 503. Set up like this and can fix the less sample of some densities, avoid the sample come-up, can't reach the detection purpose, when needing to fix, place first container 5 with the sample of being surveyed earlier, handheld handle portion 601 inserts branch 602 vertical spout 503 height that moves down to horizontal spacing groove 504, then rotates and forms limiting displacement, in the figure, is equipped with three not co-altitude horizontal spacing groove 504, the height of the sample of being surveyed need correspond one of them high setting of these three heights.

While the utility model has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the utility model is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A device for detecting the solvent resistance of rubber and plastic materials is characterized in that: the container comprises a bearing base (2), a supporting rod (3) and a first container (5), wherein one end of the supporting rod (3) is connected with the bearing base (2), the other end of the supporting rod extends upwards and is bent to form a container supporting part (8), a hanging arm (4) is arranged at the upper end of the first container (5), and the first container (5) is connected with the container supporting part (8) through the hanging arm (4) and is hung on the supporting rod (3);

a plurality of holes (501) which are communicated with the inside and the outside are formed in the first container (5);

the device is characterized by further comprising a supporting disc (1), wherein the supporting disc (1) is arranged above the bearing base (2) and is independently arranged relative to the bearing base (2).

2. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: also comprises a second container (10), wherein the second container (10) is arranged on the supporting plate (1), and the first container (5) is positioned in the second container (10).

3. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: be equipped with fluting (9) on supporting disk (1), bracing piece (3) pass fluting (9) extend to supporting disk (1) top from supporting disk (1) bottom.

4. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: supporting disk (1) bottom is equipped with pillar (7), be equipped with certain distance between the upper surface of supporting disk (1) bottom surface and bearing base (2).

5. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: the first container (5) is made of polytetrafluoroethylene.

6. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: the upper end of the middle part of the container supporting part (8) is provided with a limiting groove (801), the hanging arm (4) is limited in the limiting groove (801), and the gravity center of the first container (5) and the gravity center of the bearing base (2) are located on the same longitudinal line.

7. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 6, wherein: a limiting ring seat (502) is arranged on the bottom surface in the first container (5).

8. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, 6 or 7, wherein: the hanging arm (4) is fixed on the container supporting part (8) by adopting a detachable connecting structure.

9. The apparatus for testing the solvent resistance of rubber-plastic materials according to claim 1, wherein: at least two longitudinal sliding grooves (503) which are longitudinally arranged and a horizontal limiting groove (504) which is communicated with the longitudinal sliding grooves (503) are arranged on the side wall in the first container (5); the pressing frame (6) comprises a handle part (601) and supporting rods (602) which are connected with the lower end part of the handle part (601) and correspond to the number and the arrangement included angles of the longitudinal sliding grooves (503).