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Coated paper with solar heat reflection and heat insulation function and preparation method thereof

A technology of reflective heat-insulating coating and solar heat, applied in papermaking, coating, paper coating, etc., can solve the problems of increasing food transportation costs, increasing energy and material consumption, etc., achieve excellent solar heat reflection and heat insulation performance, and improve anti-aging Performance and mechanical properties, effect of good barrier properties

Active Publication Date: 2021-04-30
北京苏纳可科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, it greatly increases the transportation cost of food. On the other hand, during the use of refrigeration and cooling equipment such as refrigerators, it will inevitably increase the consumption of energy materials, which further causes the problem of global warming.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 2.0ml of defoamer and 3.8ml of dispersant into 220ml of distilled water, and stir at a low and constant speed of 650 r / min for 10 minutes with a high-speed disperser to disperse the additives evenly in the distilled water.

[0027] (2) Add 90g of rutile titanium dioxide, 27.5g of precipitated barium sulfate, 27.5g of talcum powder, 27.5g of heavy calcium carbonate and 27.5g of kaolin to the above system in sequence, and continuously stir in the high-speed disperser at a speed of 3500r / min 35min to fully disperse the pigments and fillers.

[0028] (3) Weigh 600g of silicon-acrylic emulsion with a solid content of 50% and add it to the above uniformly dispersed system, stir at a high speed of 3000r / min for 35min, then reduce the speed of the disperser to 1600r / min, and add 50g of hollow glass microspheres The material continued to disperse for 25 minutes, stood still for 3 hours until the coating liquid was stable, and stored for later use.

[0029] (4) Pour the ...

Embodiment 2

[0031] (1) Add 2.0ml of defoamer and 3.8ml of dispersant into 220ml of distilled water, and stir at a low and constant speed of 650 r / min for 10 minutes with a high-speed disperser to disperse the additives evenly in the distilled water.

[0032] (2) Add 80g of rutile titanium dioxide, 30g of precipitated barium sulfate, 30g of talc powder, 30g of heavy calcium carbonate and 30g of kaolin to the above system in sequence, and continuously stir for 35min at a speed of 3500r / min in a high-speed disperser to make the color The filler is well dispersed.

[0033] (3) Weigh 600g of silicon-acrylic emulsion with a solid content of 50% and add it to the above uniformly dispersed system, stir at a high speed of 3000r / min for 35min, then reduce the speed of the disperser to 1600r / min, and add 50g of hollow glass microspheres The material continued to disperse for 25 minutes, stood still for 3 hours until the coating liquid was stable, and stored for later use.

[0034] (4) Pour the abov...

Embodiment 3

[0036] (1) Add 2.0ml of defoamer and 3.8ml of dispersant into 220ml of distilled water, and stir at a low and constant speed of 650 r / min for 10 minutes with a high-speed disperser to disperse the additives evenly in the distilled water.

[0037] (2) Add 100g of rutile titanium dioxide, 25g of precipitated barium sulfate, 25g of talcum powder, 25g of heavy calcium carbonate and 25g of kaolin to the above system in sequence, and continuously stir for 35min at a speed of 3500r / min in a high-speed disperser to make the color The filler is well dispersed.

[0038] (3) Weigh 600g of silicon-acrylic emulsion with a solid content of 50% and add it to the above uniformly dispersed system, stir at a high speed of 2900r / min for 35min, then reduce the speed of the disperser to 1600r / min, and add 50g of hollow glass microspheres The material continued to disperse for 25 minutes, stood still for 3 hours until the coating liquid was stable, and stored for later use.

[0039] (4) Pour the a...

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Abstract

The invention discloses a coated paper with solar heat reflection and heat insulation function and a preparation method thereof. The coated paper is composed of a bottom layer, a middle layer and a surface layer with a three-layer structure, and the surface layer is solar heat reflection and heat insulation paint layer. The preparation process is mainly divided into the preparation of solar heat-reflecting and heat-insulating coatings and the surface coating process. The use of precipitated barium sulfate, talcum powder, ground calcium carbonate, and kaolin in a certain proportion with rutile titanium dioxide can not only improve the performance of the entire filler system. The solar heat reflection performance can also reduce the cost of the filler system; secondly, the added hollow glass microspheres have extremely low thermal conductivity, which can effectively block heat conduction. Through the surface coating process, the solar heat reflection and heat insulation coating is evenly coated on the paper, so that the paper can effectively improve the barrier performance and mechanical properties of the paper while having excellent solar heat reflection and heat insulation performance.

Description

technical field [0001] The invention relates to an energy-saving and environment-friendly special paper and its preparation technology, in particular to a coated paper with solar heat reflection and heat insulation function and its preparation method. Background technique [0002] The sun is a necessary condition for human life and production, but strong solar radiation will also bring a lot of inconvenience to our daily life and industrial production. For example: In the hot summer, strong solar radiation has a disastrous effect on food storage and transportation, especially some foods that are sensitive to ambient temperature, such as fruits, vegetables, and dairy products, must be refrigerated during transportation. Store in cabinet or freezer. On the one hand, it greatly increases the transportation cost of food. On the other hand, during the use of refrigeration and cooling equipment such as refrigerators, it will inevitably increase the consumption of energy materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/82D21H19/38D21H19/40D21H19/58D21H19/64
CPCD21H19/38D21H19/385D21H19/40D21H19/58D21H19/64D21H19/82
Inventor 唐艳军毛腾
Owner 北京苏纳可科技有限公司