Liu Zhongfan, an academician of the Chinese Academy of Sciences, believes that the graphene industry will have a promising future in three areas based on current research and development. The first one is a graphene material similar to carbon fiber, which will be widely used in high-end equipment manufacturing such as aerospace; the second is a graphene material similar to plastic, which will be widely used in people's daily life, and may even become in the future. A material similar to plastics; the third is a graphene material similar to silicon, which will be widely used in the field of integrated circuits, and is expected to greatly accelerate the development of the integrated circuit industry, and thus promote the re-industry revolution of the entire information industry. At a time when the smart home market is ambiguous, graphene materials are a new opportunity.
Smart home market status
According to a recent report from international management consulting firm Kearney, by 2020, the overall size of global smart home will grow from the current 10 billion US dollars to 50 billion US dollars, and is expected to surge to 400 billion US dollars in 2030. China will become Asia's largest smart home market by 2020.
Graphene opens four major application areas for smart homes
Graphene heating wallpaper
Graphene can make the heater into a wallpaper of only 0.5cm thick, turning the traditional bulky body into a simple and novel home decoration. Its working principle is to use the chemical vapor deposition method to prepare the graphene film, and then use the rolling or pressing method to realize the transfer of the graphene film to PVC, PET and other materials, and finally add the electrode to prepare the graphene heating film. Mainly through the graphene film to form a uniform resistance layer, heating under the voltage of 220V, the graphene film mainly through the release of far infrared rays, to achieve space heating.
Graphene heating wallpaper is mainly composed of three layers of materials, which are: insulation layer, heating film, wallpaper, and external intelligent temperature control equipment, which can realize APP remote control.
The unique heating principle of graphene itself and the revolutionary ultra-thin body make it more advantageous than traditional heating equipment. Safe and flame retardant, energy efficient, sleek and simple, health treatment, heat and moisture, intelligent and convenient.
Green building: graphene smart window
In the "Twelfth Five-Year Plan", the State Council proposed to vigorously promote energy conservation and emission reduction and develop green buildings. Building energy conservation actions are lagging, energy consumption is high, and pollution is a prominent problem that restricts the sustainable development of China's economy. 35% of the total energy consumption, China's building exterior wall heat loss is 3 to 5 times that of similar buildings in North America, the window heat loss is more than 2 times; 70% of building energy consumption is lost through doors and windows, and 1/3 of it is lost through glass.
Graphene with high sensitivity and ultra-low power consumption is an indispensable material in green buildings. The smart window enables on-demand adjustment of light transmission, building an energy-saving, comfortable and user-friendly working and living environment, which is obvious compared with traditional windows.
Advantages of Graphene Smart Window 1. Unique light transmission and heat preservation function: In summer, the solar light transmittance can be dynamically adjusted, the transmitted light and heat can be controlled to effectively reduce the indoor temperature; in winter, the light and heat can be restored. Ability to block indoor heat loss;
2. Compared with the existing building doors and windows, the comprehensive energy-saving effect is improved by more than 30%, which can effectively overcome the single defect that the existing Low-E coating can only reduce the radiation without recovering the light function;
3. The color and color of the glass can be changed according to the needs of the user to improve the comfort of the environment;
4. It can be combined with the sensor to realize automatic adjustment, which optimizes user experience and energy saving effect.
Graphene adsorbent
Nowadays, many products will contain formaldehyde. It is basically impossible to achieve formaldehyde-free products. After the decoration, in addition to formaldehyde, graphene spray and graphene charcoal can meet this demand.
A dialogue on graphene in the condensed matter physics academic report can summarize the adsorption properties of graphene: graphene adsorbs the typical atomic brothers of VA, VIA, and VIIA, and the three atomic brothers love to add graphene. The overall structure. Therefore, it has a good affinity for formaldehyde. It has a good effect on the removal of formaldehyde harmful substances in the family, and its magnetic origin is derived from the interaction between the adsorbed atoms and the graphene substrate, while the O adsorption system has no magnetic properties. This series of cases can better prove the strong adsorption of graphene. ability.
1. Graphene carbon package and graphene spray made from stable elements in an all-round way, the adsorption range is far superior to ordinary charcoal package and ordinary de-formaldehyde spray;
2. Strong adsorption capacity The strong adsorption capacity of graphene itself, the adsorption rate can reach 70%;
3. Last longer. Secondly, due to its molecular structure, graphene has stronger toughness and longer lasting time. It is not affected by foreign objects and changes its internal structure.
Graphene coating
Graphene coatings should be a relatively mature technology to solve the problem of coating toughness and adhesion by adding high-quality graphene. The strength of graphene lies in its thinness and hardness. A graphene material with a cling film thickness cannot pierce even if the pressure exerted by an elephant on a pencil.
1. More environmentally friendly. Graphene mineral coatings contain less harmful impurities and synthetic chemicals, do not release formaldehyde, benzene and other pollutants into the environment, and can also absorb carbon dioxide in the air. 2. Quickly stay. Ordinary coatings have a long drying time after construction, and the required decoration period is long. Most of the coatings need to be ventilated for a long time after painting. Graphene mineral coatings have fast drying characteristics during the construction process, between the two paintings. The short intervals and direct primer-free painting effectively reduce construction time.
3. More solid. Graphene forms a layer of high adhesion and high toughness in the coating film, which firmly locks the coating on the coating substrate, avoiding the problem of weak adhesion of ordinary mineral coatings, even on the balcony and even outdoors. Large temperature differences can also maintain high stability and resistance to fading. It will not be disintegrated due to aging, causing fading, discoloration, cracking and spalling of paint surface and secondary pollution;
4. Graphene net also has the characteristics of thermal insulation, infrared reflection and ultraviolet absorption, which can make the indoor temperature more constant and comfortable, reduce the working time of air conditioner and save energy and reduce emissions;
5. The unique electromagnetic shielding coating of graphene mineral coating can effectively filter out the interference of electromagnetic waves on the equipment.
Looking to the future
According to China's graphene industry technology innovation strategic alliance forecast, the global graphene application market will form an industrial explosion point in 2018, and will grow to 100 billion yuan in 2020; with the introduction of the "Made in China 2025" national strategy, graphene Supporting efforts to increase the number of countries, local governments, industry alliances through a variety of means to support the development of graphene industry, in general, the support policies of the world's early countries are mainly concentrated in the basic research of graphene.
Graphene as a turning point in technology, perhaps in the near future, will promote smart home in the home field to set off a revolution! Faced with such a limitless future of graphene, forward-looking companies and individuals will not turn a blind eye. There are already companies that pre-emptively acquire or build smart homes and new materials for graphene to complete technology acquisitions.
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