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Treatment process for reversible type thermochromic series

A treatment process and temperature-changing powder technology, which is applied in the field of reversible temperature-changing powder treatment process, can solve the problems of large difference in characteristics, easy particle formation, and damage to the stability of temperature-sensitive materials.

Active Publication Date: 2012-08-15
广东皓明有机硅材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Temperature-changing powder is a microencapsulated reversible temperature-sensing material, which can produce 200-500 reversible changes at 50-70°C. The powder is unevenly dispersed in the silicon material and is prone to particles
[0003] In addition, because it is used in kitchen utensils and other occasions, its products may have to withstand repeated use at high temperatures of 150-200°C, which destroys the stability of temperature-sensitive materials, resulting in shortened service life or damage by high temperatures (≤250°C)

Method used

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  • Treatment process for reversible type thermochromic series

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Embodiment

[0013] Process the temperature-changing powder in the prior art according to the following three steps:

[0014] a. Mix 7.16g of methylpolysiloxane, 3.58g of the first hydroxypolysiloxane, 7.16% of aminopolysiloxane and 71.6g of temperature-changing powder, add a small amount of silazane and 0.5g of glycerin, After uniform stirring, use a conical disperser to disperse and stir for 2-3 hours, and wait for use;

[0015] b. Mix the second part of hydroxypolysiloxane 3.33g and acrylic acid 6.67g, then use sealed dispersion and stir for 1h, and let stand to prepare the treatment agent;

[0016] c. Mix the temperature-changing powder treated in step a with the treatment agent prepared in step b, disperse and stir for 3 hours with a conical disperser, heat to 120°C-150°C, and then heat to 150°C, then ensure 150°C For more than 3 hours, lower the temperature and continue to disperse and stir until it drops to room temperature, vacuumize for 0.5h, and take it out.

[0017] After taki...

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PUM

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Abstract

The invention discloses a treatment process for reversible type thermochromic series, comprising the following steps of: a, mixing methylpolysilicone, a first part of oxhydryl polysiloxane, azyl polysiloxane with thermochromic series, adding a small quantity of silazane and glycerol, evenly stirring, stirring in a dispersing way by a cone-shaped disperser for 2-3 hours, and stewing for later use;b. mixing a second part of oxhydryl polysiloxane with acrylic acid, stirring by means of sealing and dispersing for 1 hour, and sewing, so that treating agent can be prepared; and c. mixing the thermochromic series treated by the step a with the processing agent prepared by the step b, stirring in a dispersing way by the disperser for 3 hours, heating to be 120 DEG C to 150 DEG C, heating to 150 DEG C, keeping the temperature of 150 DEG C for more than 3 hours, cooling, continuously stirring in a dispersing way till to be cooled into the room temperature, vacuumizing for 0.5 hour, and extracting. The thermochromic series treated according to the treatment technology is evenly dispersed in a silicon material, and the thermal endurance of the thermochromic series and the use times and the use reliability under normal temperature can be effectively improved.

Description

technical field [0001] The invention relates to a process for treating reversible temperature-changing powder, in particular to a process for treating reversible temperature-changing powder used in silicone rubber. Background technique [0002] Temperature-changing powder is a microencapsulated reversible temperature-sensing material, which can produce 200-500 reversible changes at 50-70°C. In the prior art, due to the large difference in characteristics between it and silicone materials, The powder is unevenly dispersed in the silicon material and is prone to particles. [0003] In addition, because it is used in kitchen utensils and other occasions, its products may have to withstand repeated use at high temperatures of 150-200°C, which destroys the stability of temperature-sensitive materials, resulting in shortened service life or damage by high temperatures (≤250°C). Contents of the invention [0004] In order to overcome the deficiencies of the prior art, the object...

Claims

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Application Information

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IPC IPC(8): C08K9/10C08K9/04C08K9/06C08L83/04
Inventor 罗斌
Owner 广东皓明有机硅材料有限公司
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