Unlock instant, AI-driven research and patent intelligence for your innovation.

Photochromic modified organic silica gel

A technology of organic silica gel and light-sensitive discoloration, which is applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of low heat shrinkage and poor heat sealing performance, and achieve high heat shrinkage and heat sealing. Good sealing performance, avoid the effect of strong light

Inactive Publication Date: 2020-05-01
WUXI HITXINCHENG POLYMER TECH
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a photochromic modified organic silica gel, which has the advantages of better heat-sealing performance and high heat shrinkage rate, and solves the problems of poor heat-sealing performance and low heat shrinkage rate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A photochromic modified organic silica gel, the preparation method of which comprises the following steps:

[0028] S1. Add powdery temperature-sensing material (30-80) wt.%, silicone adhesive (20-60) wt.%, and hydroxyl polysiloxane (20-50) wt.% into the processing tank in proportion.

[0029] S2. Then add dibutyltin diacetate (25-65) wt.% and octadecanoic acid calcium salt (0.8-5) wt.% into it in proportion for melting and chemical reaction processing.

[0030] S3, then add aluminate (45-75) wt.% and antioxidant (0.5-2.5) wt.% into the processing tank in proportion.

[0031] S4. After stirring, add anti-aging agent (0.5-2.5) wt.%, and then add defoamer (50-80) wt.%.

[0032] S5, then add thickener (0.3-3.5) wt.% to increase the viscosity, then add softener (35-65) wt.%, and then add blender (20-40) wt.% to adjust pH , so that the slurry is obtained.

[0033] S6. Then evenly coat the adjusted slurry on the outer surface of the original silica gel layer, so as to form...

Embodiment 1

[0040] Embodiment 1: A photochromic modified organic silica gel, including the following raw materials in parts by weight:

[0041] Powdery temperature-sensitive material 30wt.%, silicone adhesive 20wt.%, hydroxyl polysiloxane 20wt.%, dibutyltin diacetate 25wt.%, aluminate 45wt.%, softener 35wt.%, anti-aging agent 0.5wt %, defoamer 50wt.%, blending agent 20wt.%, octadecanoic acid calcium salt 0.8wt.%, thickener 0.3wt.%.

[0042] A photochromic modified organic silica gel, the preparation method of which comprises the following steps:

[0043] S1. Add 30wt.% of powdery temperature-sensing material, 20wt.% of silicone adhesive, and 20wt.% of hydroxyl polysiloxane into the processing tank in proportion.

[0044] S2, then add 25wt.% of dibutyltin diacetate and 0.8wt.% of calcium octadecanoate in proportion to melt and process by chemical reaction.

[0045] S3, then add 45wt.% of aluminate and 0.5wt.% of anti-aging agent into the processing tank in proportion.

[0046] S4. After...

Embodiment 2

[0055] Embodiment 2: A photochromic modified organic silica gel, including the following raw materials in parts by weight:

[0056] Powdery temperature-sensitive material 50wt.%, silicone adhesive 45wt.%, hydroxyl polysiloxane 35wt.%, dibutyltin diacetate 55wt.%, aluminate 65wt.%, softener 45wt.%, anti-aging agent 1.5wt %, defoamer 50wt.%, blending agent 35wt.%, octadecanoic acid calcium salt 3wt.%, thickener 2wt.%.

[0057] A photochromic modified organic silica gel, comprising the following steps:

[0058] S1. Add 50wt.% of powdery temperature-sensing material, 45wt.% of silicone adhesive, and 35wt.% of hydroxyl polysiloxane into the processing tank in proportion.

[0059] S2, then add 55wt.% of dibutyltin diacetate and 3wt.% of calcium octadecanoate in proportion to carry out melting and chemical reaction processing.

[0060] S3, then add 65wt.% of aluminate and 1.5wt.% of anti-aging agent into the processing tank in proportion.

[0061] S4. After stirring, add 1.5wt.% a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a photochromic modified organic silica gel, which comprises the following raw materials in parts by weight: 30-80 wt% of a powdery temperature-sensitive material, 20-60 wt% ofan organosilicon adhesive, 20-50 wt% of hydroxyl polysiloxane, 25-65 wt% of dibutyl tin diacetate, 45-75 wt% of aluminate, 35-65 wt% of a softener, 0.5-2.5 wt% of an anti-aging agent, 50-80 wt% of a defoaming agent, 20-40 wt% of a blender, 0.8-5 wt% of calcium stearate and 0.3-3.5 wt% of a thickening agent. According to the invention, an organosilicon adhesive is modified into a microporous organosilicon adhesive with a microporous structure, so that the organosilicon adhesive has air exhausting performance and adsorbability, and the micropores are hollow and have the function of adsorbing small molecules; and temperature-sensing color-changing powder is added into a functional layer, so that the PET film has the light-sensing and temperature-sensing effects, can avoid strong light irradiation, and can change color by sensing light so as to achieve the purposes of good heat sealing performance and high heat shrinkage rate.

Description

technical field [0001] The invention relates to the technical field of organic silica gel, in particular to a photochromic modified organic silica gel. Background technique [0002] The adhesive of the silicone adhesive is a linear high molecular mass prepared by one or several linear, cyclic or branched siloxanes under the action of a catalyst through reactions such as equilibrium, addition or condensation. Or cross-linked siloxane, the general preparation process of silicone adhesive tape is to coat the silicone adhesive on the surface of the tape substrate (such as various films, paper, etc.), the existing silicone can only heat insulation Anti-ultraviolet, organic silicone has poor heat-sealing performance, low heat shrinkage rate, and foam aging may occur, which will affect the production of silicone rubber. of silicone. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J11/00C09J11/08
CPCC08L2205/025C09J11/00C09J11/04C09J11/06C09J11/08C09J183/04C08L83/04C08K3/24C08K5/18C08K5/1345C08K5/57C08K13/02
Inventor 吴琳玲
Owner WUXI HITXINCHENG POLYMER TECH