CN114347320A - Preparation method of silicone rubber mold for resin casting body colloid performance test - Google Patents
Preparation method of silicone rubber mold for resin casting body colloid performance test Download PDFInfo
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- CN114347320A CN114347320A CN202210011439.9A CN202210011439A CN114347320A CN 114347320 A CN114347320 A CN 114347320A CN 202210011439 A CN202210011439 A CN 202210011439A CN 114347320 A CN114347320 A CN 114347320A
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- mold
- square frame
- glue
- rubber mold
- silicon rubber
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 39
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000084 colloidal system Substances 0.000 title claims abstract description 10
- 238000010125 resin casting Methods 0.000 title claims abstract description 10
- 238000011056 performance test Methods 0.000 title abstract description 7
- 239000003292 glue Substances 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 229920006267 polyester film Polymers 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to a preparation method of a silicone rubber mold for a resin casting body colloid performance test, and belongs to the technical field of building structure colloid performance detection. The method comprises the following steps: preparing a square frame in advance, adhering the square frame on a polyester film and fixing the square frame on a glass plate; uniformly placing a plurality of groups of steel positive molds after finish machining into the square frame; selecting mold glue with certain hardness, weighing the mold glue with required dosage, and proportioning according to the proportioning requirement of a curing agent; rapidly adding the uniformly stirred die glue into the square frame, standing, removing a plurality of groups of steel positive dies and the square frame after the die glue is hardened to obtain a silicon rubber die, and putting the silicon rubber die into a standard condition curing box for curing for 21 d; and (4) properly finishing the silicon rubber mold to obtain the final silicon rubber mold for testing.
Description
Technical Field
The invention relates to a preparation method of a silicone rubber mold for a resin casting body colloid performance test, and belongs to the technical field of building structure colloid performance detection.
Background
The GB/T2567-2008 standard specifies a performance testing method for a resin casting body, but does not describe how to prepare a sample required by a related performance test, the standard specifies that a steel die and a rubber die can be used for preparing the sample, the steel die is mostly used for preparing the sample at present, and the steel die has the advantages of good size uniformity of the prepared sample in the sample preparation process, but is difficult to demould, and the internal damage and even damage of the sample are easy to occur.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a preparation method of a silicone rubber mold for a resin casting body colloid performance test, which comprises the steps of screening mold glue, selecting mold glue with proper hardness, and preparing the silicone rubber mold by using a steel male mold by comparing the mixing uniformity of the mold glue, whether the mold glue can be automatically defoamed, the integrity of the mold after casting, whether the demolding is difficult after preparing a sample and the size integrity of the sample.
In order to solve the problems, the invention adopts the following technical scheme:
a preparation method of a silicone rubber mold for testing the colloid performance of a resin casting body comprises the following steps:
the method comprises the following steps: preparing a square frame in advance, adhering the square frame on a polyester film, fixing the polyester film on a clean, flat and horizontal glass plate, and ensuring that the square frame is sealed and does not leak glue;
step two: uniformly coating release agents on the surfaces of a plurality of groups of finish-machined steel positive molds, and sequentially and uniformly placing the steel positive molds into the square frame, wherein the distance between the steel positive molds and the edge of the square frame is not less than 20mm, and the distance between the steel positive molds and the edge of the square frame is not less than 20 mm;
step three: selecting mold glue with certain hardness, weighing the mold glue with required dosage, and mixing the mold glue and the curing agent according to the curing agent ratio requirement, wherein the mass ratio of the mold glue to the curing agent is 100: 2, proportioning, adding a curing agent, and quickly and fully stirring uniformly;
step four: rapidly adding the uniformly stirred mold glue into the square frame, supplementing a proper amount of the mold glue according to the flowing condition of the mold glue, standing the mold glue in the square frame for 24 hours, removing a plurality of groups of steel positive molds and the square frame after the mold glue is hardened to obtain a silicon rubber mold, flatly placing the silicon rubber mold on a glass plate, and placing the silicon rubber mold into a standard condition maintenance box for maintenance for 21 d;
step five: and after the curing is finished, properly finishing the silicon rubber mold to obtain the final silicon rubber mold for testing.
Further, in the first step, the length and width of the square frame are 300mm × 300mm, and the thickness of the frame of the square frame is 10 mm.
Further, in the first step, the thickness of the polyester film is 0.15 mm.
Further, in the third step, the hardness of the selected mold glue is 30, 40, 50, 60 or 70.
Further, factors of mold preparation, sample preparation and sample test are comprehensively considered, and a specific hardness silicone rubber mold is selected.
Compared with the prior art, the invention achieves the following technical effects:
according to the invention, the silicone rubber mold is prepared mainly by the steel positive mold and selecting the mold rubber with proper hardness, and the obtained silicone rubber mold can improve the preparation efficiency and success rate of the resin casting body performance test sample and improve the detection efficiency and accuracy of the test result. Particularly, the silicon rubber mold prepared by the mold rubber with the hardness of 60 can meet the requirements of dimensional integrity and easy demolding, has certain hardness and deformation, and has high repeated utilization rate.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Example 1
A preparation method of a silicone rubber mold for testing the colloid performance of a resin casting body comprises the following steps:
the method comprises the following steps: a square frame is prepared in advance, the length and width of the square frame are 300mm multiplied by 300mm, and the thickness of the frame of the square frame is 10 mm. The square frame is adhered to a polyester film with the thickness of 0.15mm, the polyester film is fixed on a clean, flat and horizontal glass plate, and the square frame is ensured to be sealed without glue leakage.
Step two: and uniformly coating a release agent on the surfaces of the multiple groups of finish-machined steel positive molds, and sequentially and uniformly placing the multiple groups of steel positive molds into the square frame, wherein the distance between the multiple groups of steel positive molds and the edge of the square frame is not less than 20mm, and the distance between the multiple groups of steel positive molds and the edge of the square frame is not less than 20 mm.
Step three: selecting mold glue with certain hardness, weighing the mold glue with required dosage, and mixing the mold glue and the curing agent according to the curing agent ratio requirement, wherein the mass ratio of the mold glue to the curing agent is 100: 2, proportioning, and adding the curing agent, and quickly and fully stirring uniformly.
Step four: rapidly adding the uniformly stirred mold glue into the square frame, supplementing a proper amount of the mold glue according to the flowing condition of the mold glue, standing the mold glue in the square frame for 24 hours, removing a plurality of groups of steel positive molds and the square frame after the mold glue is hardened to obtain a silicon rubber mold, flatly placing the silicon rubber mold on a glass plate, and placing the silicon rubber mold into a standard condition curing box for curing for 21 d.
Step five: and after the curing is finished, properly finishing the silicon rubber mold to obtain the final silicon rubber mold for testing.
And (3) experimental comparison:
selecting a high-viscosity adhesive, preparing an adhesive tensile property test piece by respectively using a silicon rubber mold and a steel mold with different hardness, curing for 21 days under standard conditions, and then performing a mold removal test.
Through experimental comparison, the aspects of mold preparation, sample test and the like are comprehensively considered, a silicone rubber mold prepared from mold rubber with the hardness of 60 is selected, and the test sample result is closest to the test result of a test sample prepared from a steel mold.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (5)
1. A preparation method of a silicone rubber mold for testing the colloid performance of a resin casting body is characterized by comprising the following steps:
the method comprises the following steps: preparing a square frame in advance, adhering the square frame on a polyester film, fixing the polyester film on a clean, flat and horizontal glass plate, and ensuring that the square frame is sealed and does not leak glue;
step two: uniformly coating release agents on the surfaces of a plurality of groups of finish-machined steel positive molds, and sequentially and uniformly placing the steel positive molds into the square frame, wherein the distance between the steel positive molds and the edge of the square frame is not less than 20mm, and the distance between the steel positive molds and the edge of the square frame is not less than 20 mm;
step three: selecting mold glue with certain hardness, weighing the mold glue with required dosage, and mixing the mold glue and the curing agent according to the curing agent ratio requirement, wherein the mass ratio of the mold glue to the curing agent is 100: 2, proportioning, adding a curing agent, and quickly and fully stirring uniformly;
step four: rapidly adding the uniformly stirred mold glue into the square frame, supplementing a proper amount of the mold glue according to the flowing condition of the mold glue, standing the mold glue in the square frame for 24 hours, removing a plurality of groups of steel positive molds and the square frame after the mold glue is hardened to obtain a silicon rubber mold, flatly placing the silicon rubber mold on a glass plate, and placing the silicon rubber mold into a standard condition maintenance box for maintenance for 21 d;
step five: and after the curing is finished, properly finishing the silicon rubber mold to obtain the final silicon rubber mold for testing.
2. The method for preparing a silicone rubber mold for testing colloidal properties of a resin-cast body according to claim 1, characterized in that: in the first step, the length and width of the square frame are 300mm × 300mm, and the thickness of the frame of the square frame is 10 mm.
3. The method for producing a silicone rubber mold for testing colloidal properties of a resin-cast body according to claim 2, characterized in that: in the first step, the thickness of the polyester film is 0.15 mm.
4. The method for preparing a silicone rubber mold for testing colloidal properties of a resin-cast body according to claim 1, characterized in that: in the third step, the hardness of the selected mould glue is 30, 40, 50, 60 or 70.
5. The method for preparing a silicone rubber mold for testing colloidal properties of a resin-cast body according to claim 1, characterized in that: the factors of mold preparation, sample preparation and sample test are comprehensively considered, and a specific hardness silicone rubber mold is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011439.9A CN114347320A (en) | 2022-01-06 | 2022-01-06 | Preparation method of silicone rubber mold for resin casting body colloid performance test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210011439.9A CN114347320A (en) | 2022-01-06 | 2022-01-06 | Preparation method of silicone rubber mold for resin casting body colloid performance test |
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| Publication Number | Publication Date |
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| CN114347320A true CN114347320A (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210011439.9A Pending CN114347320A (en) | 2022-01-06 | 2022-01-06 | Preparation method of silicone rubber mold for resin casting body colloid performance test |
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| Country | Link |
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| CN (1) | CN114347320A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137932A (en) * | 1979-04-15 | 1980-10-28 | Matsushita Electric Works Ltd | Method of producing silicone rubber mold for urethane molded product |
| US5326521A (en) * | 1993-05-26 | 1994-07-05 | East Douglas A | Method for preparing silicone mold tooling |
| WO2001038087A1 (en) * | 1999-11-24 | 2001-05-31 | Chemetall Gmbh | Use of a cast resin and a duroplastic edge seal for producing a sandwich system that consists of a screen and a glass pane |
| CN1706575A (en) * | 2004-06-07 | 2005-12-14 | 沈阳工业大学 | Hot spraying process for making steel-base mold quickly |
| JP2006231895A (en) * | 2005-02-25 | 2006-09-07 | Kotaku:Kk | High hardness silicon rubber die for casting |
| CN103214847A (en) * | 2013-03-20 | 2013-07-24 | 湖北三江航天江北机械工程有限公司 | Silicon rubber mold for integral moulding of composite skirt and preparation method |
| CN106393523A (en) * | 2016-08-31 | 2017-02-15 | 英诺莱比（北京）科技有限公司 | Manufacturing process for large reinforced silica gel mold |
| CN106908293A (en) * | 2017-02-28 | 2017-06-30 | 武汉大学 | A kind of transparent rock joint duplicate preparation method |
| CN109648695A (en) * | 2018-11-30 | 2019-04-19 | 江苏理工学院 | A kind of silicon rubber template and preparation method thereof and the method for preparing super-hydrophobic concrete using the template |
| CN111751273A (en) * | 2020-07-07 | 2020-10-09 | 济宁齐鲁检测技术有限公司 | Detection method for adhesive property of vulcanized rubber, cutter and vulcanization mold |
-
2022
- 2022-01-06 CN CN202210011439.9A patent/CN114347320A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137932A (en) * | 1979-04-15 | 1980-10-28 | Matsushita Electric Works Ltd | Method of producing silicone rubber mold for urethane molded product |
| US5326521A (en) * | 1993-05-26 | 1994-07-05 | East Douglas A | Method for preparing silicone mold tooling |
| WO2001038087A1 (en) * | 1999-11-24 | 2001-05-31 | Chemetall Gmbh | Use of a cast resin and a duroplastic edge seal for producing a sandwich system that consists of a screen and a glass pane |
| CN1706575A (en) * | 2004-06-07 | 2005-12-14 | 沈阳工业大学 | Hot spraying process for making steel-base mold quickly |
| JP2006231895A (en) * | 2005-02-25 | 2006-09-07 | Kotaku:Kk | High hardness silicon rubber die for casting |
| CN103214847A (en) * | 2013-03-20 | 2013-07-24 | 湖北三江航天江北机械工程有限公司 | Silicon rubber mold for integral moulding of composite skirt and preparation method |
| CN106393523A (en) * | 2016-08-31 | 2017-02-15 | 英诺莱比（北京）科技有限公司 | Manufacturing process for large reinforced silica gel mold |
| CN106908293A (en) * | 2017-02-28 | 2017-06-30 | 武汉大学 | A kind of transparent rock joint duplicate preparation method |
| CN109648695A (en) * | 2018-11-30 | 2019-04-19 | 江苏理工学院 | A kind of silicon rubber template and preparation method thereof and the method for preparing super-hydrophobic concrete using the template |
| CN111751273A (en) * | 2020-07-07 | 2020-10-09 | 济宁齐鲁检测技术有限公司 | Detection method for adhesive property of vulcanized rubber, cutter and vulcanization mold |
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Effective date of registration: 20220718 Address after: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Applicant after: CHINA ACADEMY OF BUILDING RESEARCH Ltd. Applicant after: SHENZHEN MUNICIPAL DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Applicant before: CHINA ACADEMY OF BUILDING RESEARCH Ltd. |
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