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Modified absorbent and preparation method thereof

An adsorbent and modification technology, which is applied in the field of modified adsorbent and its preparation, can solve the problems of butyl rubber, such as general performance, low water vapor transmission rate, and unstable performance, and achieve improved porosity, low water vapor transmission rate, The effect of stable performance

Inactive Publication Date: 2017-09-29
JIANGSU JINGDUN ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The performance of the butyl rubber used in the first sealing is average, the water vapor transmission rate is low, and the performance is not stable enough. If it is used to prepare insulating glass, the interlayer is prone to fogging, which affects the use. It is urgent to improve the butyl rubber to increase the adsorption capacity. and water vapor transmission rate in order to prolong the service life of insulating glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A modified adsorbent, comprising the following components in parts by weight: 80 parts of butyl rubber, 24 parts of activated carbon, 23 parts of polyethylene glycol, 1 part of dispersant, 24 parts of stearic acid, 1 part of sodium chloride 34 parts of calcium carbonate, 2 parts of zinc oxide, 20 parts of paraffin oil, 23 parts of methyl cellulose, 1 part of rosin soap, 14 parts of phthalic anhydride, 1 part of polyvinyl alcohol, 3 parts of phenolic resin, 1 part of sodium bromide, 1 part of leveling agent, 2 parts of insoluble sulfur.

[0016] Among them, the porosity of activated carbon is 40-68%.

[0017] The preparation method of the above-mentioned modified adsorbent comprises the following steps: step 1, weighing each component; step 2, after boiling the activated carbon, drying, adding polyethylene glycol and grinding to obtain modified activated carbon powder; step 3, adding Heat the mixture of butyl rubber, sodium chloride and sodium bromide to 120°C, then add...

Embodiment 2

[0022] A modified adsorbent, comprising the following components in parts by weight: 110 parts of butyl rubber, 42 parts of activated carbon, 34 parts of polyethylene glycol, 2 parts of dispersant, 26 parts of stearic acid, 4 parts of sodium chloride 42 parts of calcium carbonate, 7 parts of zinc oxide, 35 parts of paraffin oil, 40 parts of methyl cellulose, 3 parts of rosin soap, 24 parts of phthalic dimethyl anhydride, 4 parts of polyvinyl alcohol, 6 parts of phenolic resin, 3 parts of sodium bromide, 4 parts of leveling agent, 3 parts of insoluble sulfur.

[0023] Activated carbon has a porosity of 40-68%.

[0024] The preparation method of the above-mentioned modified adsorbent comprises the following steps: step 1, weighing each component; step 2, after boiling the activated carbon, drying, adding polyethylene glycol and grinding to obtain modified activated carbon powder; step 3, adding Heat the mixture of butyl rubber, sodium chloride and sodium bromide to 150°C, then ...

Embodiment 3

[0029] A modified adsorbent, comprising the following components in parts by weight: 120 parts of butyl rubber, 53 parts of activated carbon, 45 parts of polyethylene glycol, 4 parts of dispersant, 28 parts of stearic acid, 8 parts of sodium chloride 53 parts of calcium carbonate, 9 parts of zinc oxide, 43 parts of paraffin oil, 43 parts of methyl cellulose, 4 parts of rosin soap, 38 parts of phthalic anhydride, 8 parts of polyvinyl alcohol, 8 parts of phenolic resin, 4 parts of sodium bromide, 8 parts of leveling agent, 4 parts of insoluble sulfur.

[0030] Activated carbon has a porosity of 40-68%.

[0031] The preparation method of the above-mentioned modified adsorbent comprises the following steps: step 1, weighing each component; step 2, after boiling the activated carbon, drying, adding polyethylene glycol and grinding to obtain modified activated carbon powder; step 3, adding Heat the mixture of butyl rubber, sodium chloride and sodium bromide to 180°C, then add polyv...

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PUM

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Abstract

The invention discloses a modified absorbent and a preparation method thereof. The modified absorbent is characterized by containing the following components: activated carbon, polyethylene glycol, butyl rubber, sodium chloride, sodium bromide, polyvinyl alcohol, stearic acid, calcium carbonate, zinc oxide, paraffin oil, methylcellulose, rosin soap, phthalic acid dimethyl anhydride, phenolic resin, flatting agent and insoluble sulfur. The preparation method comprises the following steps: carrying out pretreatment and modification on activated carbon; carrying out halogenating modification on the butyl rubber; and mixing the residual components, adding the modified activated carbon and the modified butyl rubber, stirring, carrying out ultrasonic treatment, and finally extruding. The modified absorbent is used for processing common absorption substances, so that the static adsorption capacity is improved, and the water vapor transmittance is decreased; and the preparation process is simple and feasible and applicable to industrialization.

Description

technical field [0001] The invention belongs to the technical field of dehumidification and adsorption, and in particular relates to a modified adsorbent and a preparation method thereof. Background technique [0002] Insulating glass has the advantages of heat preservation and radiation isolation. When preparing insulating glass, it is necessary to add adsorbent and gas to the interlayer of two pieces of glass to maintain the adsorption state. At present, double-channel sealing is the most commonly used technical method, but small water molecules can still enter the insulating glass through the sealing system, and the air moisture sealed inside the insulating glass during production makes the performance and service life of the insulating glass still to be determined. improve. In the double seal, the first seal uses butyl rubber to prevent water vapor from entering. [0003] The performance of the butyl rubber used in the first sealing is average, the water vapor trans...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/26
CPCB01J20/264B01D53/261B01D2257/80B01J20/28007B01J20/30
Inventor 李雪琦戴思捷戴宇轩沈天宇潘逸汝
Owner JIANGSU JINGDUN ENERGY SAVING TECH CO LTD
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