CN114755076A - Method for manufacturing test sample of wet air crosslinked sol - Google Patents
Method for manufacturing test sample of wet air crosslinked sol Download PDFInfo
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- CN114755076A CN114755076A CN202210011510.3A CN202210011510A CN114755076A CN 114755076 A CN114755076 A CN 114755076A CN 202210011510 A CN202210011510 A CN 202210011510A CN 114755076 A CN114755076 A CN 114755076A
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- sol
- flower mud
- box body
- glue injection
- glue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
A method for manufacturing a test sample of wet air crosslinked sol comprises the following steps: 1) pouring liquid sol into a closed container; 2) maintaining the humidity and pressure of the liquid sol in the container; 3) after the sol crosslinking is completed, taking out the gel block; 4) and cutting the rubber block according to the shape requirement of the test sample. In the step 1), the closed container comprises a box body and flower mud; the flower mud is arranged in the box body, and a rubber block mold cavity is dug in the flower mud; the flower mud is also provided with a glue injection channel and an exhaust channel, the glue injection channel and the exhaust channel are both communicated with the glue block film cavity, and the glue injection channel and the exhaust channel are both communicated with the atmosphere; injecting liquid sol into the glue block film cavity through the glue injection channel until the liquid sol overflows into the exhaust channel; the flower mud is in a water absorption state; in the step 2), after the step 1) is finished, communicating the glue injection channel and the exhaust channel with an air pressure generating device to keep the pressure in the glue block film cavity; moisturizing the flower mud; and 3), treating the surface of the taken-out rubber block to remove the adhered foreign matters.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to a method for manufacturing a test sample of wet air crosslinked sol.
Background
In the prior art, in order to detect the performance of a product after crosslinking (curing) such as a sealant, a sol needs to be sampled and then crosslinked to obtain a test sample, and then detection is carried out. In the case of a wet air crosslinking type sol, the conventional method is to place the sol in a culture dish, place the sol in an air or heat and moisture test box, and after the sol is crosslinked, take out the sol and perform various tests. The problem encountered during the manufacturing process is that after cross-linking, the test sample can retract, and spherical crown type concave recesses are formed on the surface of the test sample, so that a larger error exists between the thickness of the test sample and the thickness required by experiments.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for manufacturing a test sample of wet air crosslinked sol, which comprises the following steps:
1) pouring liquid sol into a closed container;
2) maintaining the humidity and pressure of the liquid sol in the container;
3) after the sol crosslinking is completed, taking out the gel block;
4) cutting the rubber block according to the shape requirement of the test sample in the experiment;
in the step 1), the closed container comprises a box body and flower mud; the flower mud is arranged in the box body, and a rubber block mold cavity is dug in the flower mud; the flower mud is also provided with a glue injection channel and an exhaust channel, the glue injection channel and the exhaust channel are both communicated with the glue block film cavity, and the glue injection channel and the exhaust channel are both communicated with the atmosphere;
Injecting liquid sol into the glue block film cavity through the glue injection channel until the liquid sol overflows into the exhaust channel; the flower mud is in a water absorption state;
in the step 2), after the step 1) is finished, communicating the glue injection channel and the exhaust channel with the air pressure generating device to keep the pressure in the glue block film cavity; moisturizing the flower mud;
and in the step 3), the surface of the taken-out rubber block is treated to remove the adhered foreign matters.
Specifically, the method comprises the following steps:
in the step 1), the box body is divided into an upper box body and a lower box body, and the upper box body and the lower box body are both in a cuboid shape with one open surface; the upper box body and the lower box body are respectively filled with upper flower mud and lower flower mud; the open surfaces of the upper box body and the lower box body are butted, the connecting surfaces of the upper floral foam and the lower floral foam are dug with inner recesses, and the two parts of the inner recesses are spliced into a rubber block die cavity;
the glue injection channel and the exhaust channel are both arranged in the flower mud of the upper box body, and through holes corresponding to the open ends of the glue injection channel and the exhaust channel are formed in the upper box body; the through hole is connected with a glue injection extension pipe and an exhaust extension pipe, and the glue injection extension pipe and the exhaust extension pipe are respectively connected with a connector device connected with an air pipe of the air pressure generating device.
The edge of the connecting surface of the upper floral foam and the lower floral foam is of a step structure, and the edge positions of the upper floral foam and the lower floral foam are mutually meshed to form a liquid sol blocking structure.
The exhaust passages are uniformly distributed on the die cavity
A one-way permeable layer (one-way permeable film) is adhered to the inner wall of the rubber block mold cavity, and water in the flower mud penetrates into the rubber block mold cavity.
In the step 2), the air pressure generating device is a fan.
And in the step 3), the surface of the rubber block is polished by sand paper.
The method adopts the water-absorbing and water-retaining flower mud as a mold cavity of the rubber block to continuously supply water vapor for the wet air crosslinking sol. The flower mud is a flower arrangement article made of phenolic plastic foam, and is used for forming a mold cavity supporting structure in the method, so that the mold cavity is easy to manufacture.
When injecting glue, the exhaust passage is used for exhausting air in the die cavity. After glue injection, glue is reserved in the glue injection channel and the exhaust channel, and because the glue can retract after being crosslinked and cured, the glue in the channel is used for feeding. And because the glue is moisture crosslinked, the retracted position is the whole surface, so that a plurality of air exhaust channels are provided for feeding a plurality of positions. Through tests, although the bottom surface and the side surface of the mold cavity have retraction tendencies, the retraction tendencies of the surfaces are compensated and leveled through multi-point feeding.
The glue in the mould cavity is continuously supplemented with moisture by adopting the one-way permeable membrane, and the water quantity in the moisture supplementing process is kept continuously trace by the water absorption characteristics of the flower mud and the characteristics of the one-way permeable membrane, and is similar to the use state of the glue.
And (3) the fan in the step 2) keeps the positive pressure of the glue injection channel and the positive pressure of the exhaust channel to the mold cavity, and presses the glue into the mold cavity to inhibit the surface retraction of the glue block.
And 3) performing surface treatment, wherein the surface treatment is mainly used for removing foreign matters adhered to the surface of the rubber block, and the shrunken part can be polished to be flat according to the appearance quality of the rubber block.
The invention can manufacture the rubber blocks for the test samples with various shapes in batches for taking in the test.
Drawings
FIG. 1 is a schematic sectional view of a closed vessel;
FIG. 2 is a schematic view of a closed container in a plan view;
FIG. 3 is a schematic view showing a stepped structure at the edge of the joint of the upper floral foam and the lower floral foam;
in the figure: go up box body 1, lower box body 2, go up flower mud 3, flower mud 4 down, glue piece die cavity 5, one-way permeable layer 6, injecting glue passageway 7, exhaust passage 8, injecting glue extension pipe 9, exhaust extension pipe 10, stair structure 11.
Detailed Description
The present disclosure is further described with reference to the following drawings and detailed description:
a method for manufacturing a test sample of wet air crosslinked sol comprises the following steps:
1) filling liquid sol into a closed container;
2) maintaining humidity and pressure on the liquid sol in the container;
3) after the sol crosslinking is finished, taking out the gel block;
4) cutting the rubber block according to the shape requirement of the test sample in the experiment;
Referring to fig. 1, in the step 1), the closed container comprises a box body and flower mud; the flower mud is arranged in the box body, and a rubber block mold cavity is dug in the flower mud; a glue injection channel and an exhaust channel are arranged in the flower mud, the glue injection channel and the exhaust channel are both communicated with the glue block film cavity, and the glue injection channel and the exhaust channel are both communicated with the atmosphere;
injecting liquid sol into the glue block film cavity through the glue injection channel until the liquid sol overflows into the exhaust channel; the flower mud is in a water absorption state;
the box body is divided into an upper box body and a lower box body, and the upper box body and the lower box body are both in a cuboid shape with one open surface; the upper box body and the lower box body are respectively filled with upper flower mud and lower flower mud; the open surfaces of the upper box body and the lower box body are butted, the connecting surfaces of the upper floral foam and the lower floral foam are dug with inner recesses, and the two parts of the inner recesses are spliced into a rubber block die cavity; after the upper box body and the lower box body are butted, the outer part of the box body needs to be locked by a lock hole.
The glue injection channel and the exhaust channel are both arranged in the flower mud of the upper box body, and through holes corresponding to the open ends of the glue injection channel and the exhaust channel are formed in the upper box body; the through hole is connected with a glue injection extension pipe and an exhaust extension pipe, and the glue injection extension pipe and the exhaust extension pipe are respectively connected with a connector device connected with an air pipe of the air pressure generating device.
The inner wall of the rubber block die cavity is attached with a one-way permeable layer, and water in the flower mud penetrates into the rubber block die cavity.
The exhaust channel described with reference to figure 2 is provided in a plurality which is distributed evenly over the mould cavity.
Referring to fig. 3, the edges of the joint surface of the upper floral foam and the lower floral foam are in a step structure, and the edges of the upper floral foam and the lower floral foam are engaged with each other to form a liquid sol barrier structure.
In the step 2), after the step 1) is finished, communicating the glue injection channel and the exhaust channel with the air pressure generating device to keep the pressure in the glue block film cavity; moisturizing the flower mud;
and in the step 3), the surface of the taken-out rubber block is treated to remove the adhered foreign matters. And (5) polishing the surface of the rubber block by using sand paper.
In the step 2), the air pressure generating device is a fan.
By adopting the method, the mold cavity of the rubber block can be conveniently dug on the floral foam block, the rubber block can be supported in more shapes, and the method is convenient for various experiments.
Claims (7)
1. A method for manufacturing a test sample of wet air crosslinked sol comprises the following steps:
1) filling liquid sol into a closed container;
2) maintaining humidity and pressure on the liquid sol in the container;
3) after the sol crosslinking is finished, taking out the gel block;
4) cutting the rubber block according to the shape requirement of the test sample in the experiment;
In the step 1), the closed container comprises a box body and flower mud; the flower mud is arranged in the box body, and a rubber block mold cavity is dug in the flower mud; a glue injection channel and an exhaust channel are arranged in the flower mud, the glue injection channel and the exhaust channel are both communicated with the glue block film cavity, and the glue injection channel and the exhaust channel are both communicated with the atmosphere;
injecting liquid sol into the glue block film cavity through the glue injection channel until the liquid sol overflows into the exhaust channel; the flower mud is in a water absorption state;
in the step 2), after the step 1) is finished, communicating the glue injection channel and the exhaust channel with the air pressure generating device to keep the pressure in the glue block film cavity; moisturizing the flower mud;
and in the step 3), the surface of the taken-out rubber block is treated to remove the adhered foreign matters.
2. The method for preparing a test sample of a wet air crosslinked sol according to claim 1, wherein in the step 1), the cartridge is divided into an upper cartridge and a lower cartridge, both of which are in the shape of a rectangular parallelepiped with one open side; the upper box body and the lower box body are respectively filled with upper flower mud and lower flower mud; the open surfaces of the upper box body and the lower box body are butted, the connecting surfaces of the upper floral foam and the lower floral foam are dug with inner recesses, and the two parts of the inner recesses are spliced into a rubber block die cavity;
the glue injection channel and the exhaust channel are both arranged in the flower mud of the upper box body, and through holes corresponding to the open ends of the glue injection channel and the exhaust channel are formed in the upper box body; the through hole is connected with a glue injection extension pipe and an exhaust extension pipe, and the glue injection extension pipe and the exhaust extension pipe are respectively connected with a connector device connected with an air pipe of the air pressure generating device.
3. The method for preparing a test sample of wet air crosslinked sol according to claim 1, wherein the edges of the joint surfaces of the upper floral foam and the lower floral foam are step structures, and the edges of the upper floral foam and the lower floral foam are engaged with each other to form a liquid sol barrier structure.
4. The method for preparing a test sample of a wet air crosslinked sol according to claim 1, wherein in the step 1), a water-impermeable layer is attached to the inner wall of the cavity of the block, and water in the flower mud is permeated into the cavity of the block.
5. The method for preparing a test sample of a wet air crosslinked sol according to claim 1, wherein in the step 2), the air pressure generating device is a blower.
6. The method for preparing a test sample of a wet air crosslinked sol according to claim 1, wherein in the step 3), the surface of the sol block is polished with sandpaper.
7. The method of preparing a test sample of a wet air crosslinked sol according to claim 1, wherein the plurality of air vent channels are uniformly distributed over the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011510.3A CN114755076A (en) | 2022-01-06 | 2022-01-06 | Method for manufacturing test sample of wet air crosslinked sol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011510.3A CN114755076A (en) | 2022-01-06 | 2022-01-06 | Method for manufacturing test sample of wet air crosslinked sol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114755076A true CN114755076A (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210011510.3A Pending CN114755076A (en) | 2022-01-06 | 2022-01-06 | Method for manufacturing test sample of wet air crosslinked sol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114755076A (en) |
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2022
- 2022-01-06 CN CN202210011510.3A patent/CN114755076A/en active Pending
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