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Durable liquid silica gel

A liquid silicone, durable technology, used in recycling technology, mechanical material recycling, plastic recycling, etc., can solve problems such as debris blowing to the side, inability to complete cleaning, product damage, etc., to improve smoothness, improve die casting quality, The effect of improving smoothness

Pending Publication Date: 2021-06-25
何瑞元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After the liquid silicone is molded, due to the certain elasticity of the liquid silicone, it will still be adsorbed on the mold after the die-casting is completed. When employees use tools to pick up the product, the product may be damaged, and after the production is over, it is often necessary to use When the compressed air is used to clean the internal mold, the debris may be blown aside during cleaning, and thorough cleaning cannot be completed. Therefore, a liquid silica gel and corresponding preparation methods are needed to improve the above problems

Method used

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  • Durable liquid silica gel
  • Durable liquid silica gel
  • Durable liquid silica gel

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A durable liquid silica gel, its raw materials include A-component rubber and B-component rubber, the A-component rubber includes: 80-100 parts of hydroxyl-terminated polysiloxane, 5-parts of vinyl-terminated silicone oil 20 parts, 0.3-1.2 parts of platinum catalyst; the B component rubber includes: 80-100 parts of hydroxyl-terminated polysiloxane, 5-15 parts of tetraethyl orthosilicate, 2.5-4.5 parts of polyethylene glycol, ammonia 4-7 parts of propyltriethoxysilane.

[0050] Based on the above formula and process, the present invention also provides a preparation method of durable liquid silica gel, such as figure 1 shown, including the following steps:

[0051] a. Preparation of component A compound: vacuum-dry 90 parts of hydroxyl-terminated polysiloxane at 120°C for 3 hours, airtightly cool to 25°C; put the dried hydroxyl-terminated polysiloxane into a planetary stirring tank, Add terminal vinyl silicone oil and platinum catalyst in parts by mass, and stir for 30...

Embodiment 2

[0065] On the basis of Example 1, such as Figure 11As shown, the support horizontal plate 9 also includes a rolling wheel 41 and a rotating rod 42 , the rotating rod 42 is rotationally connected to the inside of the supporting horizontal plate 9 symmetrically and equidistantly, and the rolling wheel 41 is symmetrically and fixedly connected to the rotating rod 42 .

[0066] When this embodiment is in use, it is connected to the inner bottom end of the support horizontal plate 9 through the symmetrical rotation of the rotating rod 42, and the rolling wheel 41 is symmetrically fixedly connected between the rotating rod 42 and the rotating rod 42, and the rolling wheel 41 is connected to the supporting workbench. 40 surface contact can improve the smoothness of the support horizontal plate 9 when moving, and greatly shorten the time consumed by the support horizontal plate 9 when moving.

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Abstract

The invention discloses durable liquid silica gel, which is prepared from the following raw materials: a component A sizing material and a component B sizing material. The component A sizing material is prepared from 80 to 100 parts of hydroxyl-terminated polysiloxane, 5 to 20 parts of vinyl-terminated silicone oil and 0.3 to 1.2 parts of platinum catalyst. The component B sizing material is prepared from the following components in parts by weight: 80 to 100 parts of hydroxyl-terminated polysiloxane, 5 to 15 parts of ethyl orthosilicate, 2.5 to 4.5 parts of polyethylene glycol and 4 to 7 parts of aminopropyltriethoxysilane. The liquid silica gel provided by the invention is durable.

Description

technical field [0001] The invention relates to the technical field of liquid silica gel equipment, in particular to a durable liquid silica gel. Background technique [0002] According to Chinese Patent No. CN102516932B, the present invention relates to the preparation of a transparent liquid silica gel, especially a method for preparing a dealcoholized two-component equal-proportion hydroxyl-terminated liquid silica gel. Provide a transparent two-component room temperature curing silicone rubber that can be mixed in equal proportions to meet the needs of automatic potting equipment. The steps are to weigh the hydroxyl-terminated polysiloxanes in components A and B, and dry them in vacuum. After cooling component A, add a catalyst, and after cooling component B, add stabilizer, crosslinking agent, and co-curing agent. After the two components are mixed, the glue has low viscosity (500-1000mPa.s / 25°C); used in equal proportions (equal volume ratio or equal weight ratio); fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L71/02C08K5/5415C08K5/544B29C33/72B29B17/04
CPCB29B17/0412B29B2017/0448B29C33/72B29C2033/727C08L83/04C08L2205/025C08L2205/035C08L71/02C08K5/5415C08K5/544Y02W30/52Y02W30/62
Inventor 不公告发明人
Owner 何瑞元
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