CN114347320B - A method for preparing a silicone rubber mold for testing the colloid properties of a resin casting - Google Patents
A method for preparing a silicone rubber mold for testing the colloid properties of a resin casting Download PDFInfo
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- CN114347320B CN114347320B CN202210011439.9A CN202210011439A CN114347320B CN 114347320 B CN114347320 B CN 114347320B CN 202210011439 A CN202210011439 A CN 202210011439A CN 114347320 B CN114347320 B CN 114347320B
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Abstract
本发明涉及一种树脂浇铸体胶体性能试验用硅橡胶模具的制备方法，属于建筑结构胶性能检测技术领域。包括如下步骤：预先制备一方框，将该方框粘贴在聚酯薄膜上，并固定在玻璃板上；将精加工后的多组钢材质阳模具，均匀的放入到所述方框中；选取一定硬度的模具胶，称取所需用量的模具胶，按照固化剂配比要求进行配比；将搅拌均匀的模具胶迅速加入到所述方框中，静置，待模具胶硬化后，去除多组钢材质阳模具和方框，得到硅橡胶模具，放入标准条件养护箱中养护21d；对硅橡胶模具进行适当的修整，获得最终试验用的硅橡胶模具。The present invention relates to a method for preparing a silicone rubber mold for a resin casting colloid performance test, and belongs to the technical field of building structural adhesive performance detection. The method comprises the following steps: preparing a square frame in advance, pasting the square frame on a polyester film, and fixing it on a glass plate; evenly placing multiple groups of finely processed steel positive molds into the square frame; selecting a mold glue of a certain hardness, weighing the required amount of mold glue, and proportioning it according to the curing agent ratio requirements; quickly adding the evenly stirred mold glue into the square frame, standing it, and after the mold glue hardens, removing the multiple groups of steel positive molds and the square frame to obtain a silicone rubber mold, and placing it in a standard condition curing box for curing for 21 days; appropriately trimming the silicone rubber mold to obtain a silicone rubber mold for the final test.
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 provides a method for testing the performance of a resin casting body, but does not describe how to prepare samples required by related performance tests, the standard provides that steel molds and rubber molds can be used for preparing the samples, more steel molds are used for preparing the samples at present, and the steel molds have the advantages of good uniformity of the prepared samples in the process of preparing the samples, difficulty in demolding and easiness in damaging or even destroying the samples.
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 is characterized by comparing the mixing uniformity of the mold rubber, whether the self-defoaming, the integrity of a mold after casting, whether the demolding is difficult after preparing a sample and the size integrity of the sample, screening the mold rubber, selecting the mold rubber with proper hardness, and preparing the silicone rubber mold by using a steel male mold.
In order to solve the problems, the invention adopts the following technical scheme:
a preparation method of a silicone rubber mold for a resin casting body colloid performance test comprises the following steps:
step one: preparing a square frame in advance, adhering the square frame to a polyester film, fixing the polyester film on a clean, flat and horizontal glass plate, and ensuring that the square frame is sealed and not leaked;
Step two: uniformly smearing a release agent on the surfaces of the finished multiple groups of steel male dies, and sequentially and uniformly putting the multiple groups of steel male dies into the square frame, wherein the intervals between the multiple groups of steel male dies are not less than 20mm, and the intervals between the multiple groups of steel male dies and the edges of the square frame are not less than 20mm;
step three: selecting mold glue with certain hardness, weighing the mold glue with required dosage, and according to the proportioning requirement of the curing agent, namely the mass ratio of the mold glue to the curing agent is 100:2, proportioning, and after adding the curing agent, stirring rapidly and fully uniformly;
step four: adding the uniformly stirred mold glue into the square frame rapidly, 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 male molds and the square frame after the mold glue is hardened to obtain a silicon rubber mold, horizontally placing the silicon rubber mold on a glass plate, and placing the glass plate in a standard condition curing box for curing for 21 days;
Step five: after curing, the silicone rubber mold is properly trimmed to obtain the final silicone rubber mold for the test.
Further, in the first step, the length and width dimensions of the square frame are 300mm×300mm, and the thickness of the square frame is 10mm.
Further, in the first step, the thickness of the polyester film is 0.15mm.
Further, in the third step, the hardness of the selected mold glue is 30, 40, 50, 60 or 70.
Further, the 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 has the following technical effects:
According to the invention, the mold rubber with proper hardness is selected to prepare the silicone rubber mold, so that the preparation efficiency and success rate of the resin casting body performance test sample can be improved, and the detection efficiency and accuracy of the test result can be improved. In particular, the silicone 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 mold repeated use rate.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
A preparation method of a silicone rubber mold for a resin casting body colloid performance test comprises the following steps:
Step one: a square frame is prepared in advance, the length and width dimensions of the square frame are 300mm multiplied by 300mm, and the thickness of the frame of the square frame is 10mm. The square frame is stuck on a polyester film with the thickness of 0.15mm, the polyester film is fixed on a clean, flat and horizontal glass plate, and the sealing of the square frame is ensured to be leaktight.
Step two: and uniformly smearing release agents on the surfaces of the finished multiple groups of steel male dies, and sequentially and uniformly putting the multiple groups of steel male dies into a square frame, wherein the distance between the multiple groups of steel male dies and the edge of the square frame is not less than 20mm.
Step three: selecting mold glue with certain hardness, weighing the mold glue with required dosage, and according to the proportioning requirement of the curing agent, namely the mass ratio of the mold glue to the curing agent is 100:2, after the curing agent is added, the mixture is rapidly and fully stirred uniformly.
Step four: and (3) 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, horizontally placing the silicon rubber mold on a glass plate, and placing the glass plate into a standard condition curing box for curing for 21 days.
Step five: after curing, the silicone rubber mold is properly trimmed to obtain the final silicone rubber mold for the test.
Experimental comparison:
And (3) selecting a high-viscosity adhesive, preparing an adhesive tensile property test piece by using a silicon rubber mold and a steel mold with different hardness respectively, curing for 21 days under standard conditions, and then removing the mold for testing.
Through experimental comparison, the aspects of mold preparation, sample test and the like are comprehensively considered, a silicon rubber mold prepared by mold rubber with the hardness of 60 is selected, and the test sample result is closest to the test result of the test sample prepared by the steel mold.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210011439.9A CN114347320B (en) | 2022-01-06 | 2022-01-06 | A method for preparing a silicone rubber mold for testing the colloid properties of a resin casting |
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| CN202210011439.9A CN114347320B (en) | 2022-01-06 | 2022-01-06 | A method for preparing a silicone rubber mold for testing the colloid properties of a resin casting |
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| CN114347320A CN114347320A (en) | 2022-04-15 |
| CN114347320B true CN114347320B (en) | 2024-08-27 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231895A (en) * | 2005-02-25 | 2006-09-07 | Kotaku:Kk | High hardness silicon rubber die for casting |
| 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 |
Family Cites Families (8)
| 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 |
| JP2003527259A (en) * | 1999-11-24 | 2003-09-16 | ヒェメタル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Use of casting resin and the use of thermosetting edge seals to produce sandwich structures consisting of screens and glass plates |
| CN1706575A (en) * | 2004-06-07 | 2005-12-14 | 沈阳工业大学 | The Method of Quickly Fabricating Steel Base Mold by Thermal Spraying |
| CN103214847B (en) * | 2013-03-20 | 2015-05-13 | 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 |
| CN106908293B (en) * | 2017-02-28 | 2019-12-10 | 武汉大学 | Preparation method of transparent rock joint replica |
| CN109648695B (en) * | 2018-11-30 | 2020-12-29 | 江苏理工学院 | Silicone rubber template and preparation method thereof and method for preparing superhydrophobic 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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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231895A (en) * | 2005-02-25 | 2006-09-07 | Kotaku:Kk | High hardness silicon rubber die for casting |
| 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 |
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