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Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof

A phase change material, temperature and humidity control technology, applied in ceramic products, other household appliances, applications, etc., can solve the problem of consuming a lot of energy, and achieve the effect of saving raw materials, continuous pore size, and increasing varieties

Inactive Publication Date: 2014-10-15
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] As people's requirements for the indoor living environment continue to increase, they often rely on air-conditioning heating and humidification equipment to adjust humidity. This method consumes a lot of energy and is restricted by energy-saving and environmental protection policies. How to make full use of solar energy to develop a building phase-change multifunctional material, Changing active energy consumption to passive energy saving is a severe challenge

Method used

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  • Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof
  • Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof
  • Biomass porous phase change temperature adjustment and humidifying material and preparation method thereof

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the embodiments.

[0027] 1. Raw materials

[0028] (1) Waste walnut shells: After pickling, they are dried and ground, passed through a 0.63mm sieve, and then physically activated. After activation, the pore size distribution of walnut shells is concentrated in 10 4 nm~10 5 Between nm, the porosity is as high as 76%.

[0029] (2) Phase change material: use paraffin or dodecanol; paraffin: solid, melting point 45℃~48℃; dodecanol: liquid, melting point 20℃~24℃.

[0030] 2. Walnut shell activation system

[0031]

[0032] 3. The best adsorption ratio

[0033]

[0034] A preparation method of biomass porous phase change temperature and humidity control material includes the following steps:

[0035] 1) Pickling the walnut shell raw materials and baking at 105°C for 24 hours. Take the dried walnut shell raw material, put it into a ball mill, ball mill for 6 hours, and then use a vibrating mill for furt...

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Abstract

The invention discloses a biomass porous phase change temperature adjustment and humidifying material and a preparation method thereof. The biomass porous phase change temperature adjustment and humidifying material is prepared by mixing a porous phase change material and a base material according to the mass ratio of 50:50; the porous phase change material is composed of a phase change material and a porous material according to the mass ratio of 4:6; the base material is a building gypsum plaster cementing material; the phase change material is paraffin or dodecyl alcohol; the porous material is walnut shell subjected to physical activation. The biomass porous phase change temperature adjustment and humidifying material, provided by the invention, compared with conventional phase change materials, can utilize porous phase change to realize temperature adjustment for the material, can utilize pores in the plaster adsorption to perform humidifying; the wasted shell is used as the raw material, the variety of building multifunctional materials are increased, the application range of biomass material is enlarged, and great significance is brought for the fields of improving indoor living environment and environmental protection and energy saving.

Description

【Technical Field】 [0001] The invention relates to a phase change multifunctional material for building walls, in particular to a biomass porous phase change temperature and humidity control material and a preparation method thereof. 【Background technique】 [0002] As people’s requirements for the indoor living environment continue to increase, they often rely on air-conditioning heating and humidification equipment to adjust humidity. This method consumes a lot of energy and is restricted by energy-saving and environmental protection policies. How to make full use of solar energy to develop a building phase-change multifunctional material? Changing active energy consumption into passive energy saving is a serious challenge. [Content of the invention] [0003] The purpose of the present invention is to provide a biomass porous phase change temperature and humidity control material and a preparation method thereof to solve the above technical problems. [0004] In order to achieve th...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B38/08
Inventor 尚建丽陈丹杜雅琴武斌
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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