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Boost energy efficiency in buildings and broad prospects of plastic building materials
Plastic building material known as steel, wood, cement, after the fourth generation of new building materials. Plastic building materials industry in China is now more than 15% of the average annual growth rate has become the second largest pillar industry second only to the packaging industry in the plastics industry. Huge market demand for energy-saving and environment-friendly plastic building materials to provide a huge space for development. With the rapid development of China in recent years, the real estate industry, building materials industry, gain power, has been considerable progress in the country "12 Five" vigorously advocated the premise of saving environmental protection, sustainable development and environment-friendly building materials plastic building materials such as a rising star, continue to grow and develop with. However, plastic materials and traditional materials are different, their technical update speed faster, emerging new technologies, new materials, new processes, but also the technical requirements of plastic building materials manufacturers.

Plastic building materials to promote the development of the building materials industry

All kinds of plastic building materials made of plastic as raw material, usually composed of many materials prepared from polymers (or synthetic resin) is the main component, In addition, plastic building materials needs of special properties and special environment of the application of plastic materials, you can add the appropriate amount of support material, such as fillers, plasticizers, lubricants, stabilizers, coloring agents, in order to become a good performance of the plastic. China's plastic materials can be divided into: plastic plates, plastic tubing and plastic profiles.

It is reported that the building materials industry will likely need to use more plastic materials. Crisis in early 2002, renowned architect Edward to address climate change challenge, he proposed in 2030 to promote the global building materials industry to transition to a more sustainable development of the cultural construction of the greenhouse gas emissions. And has established a non-profit and independent organization. Plastic experts believe that there are many potential challenges of the organization, the American Chemistry Council Plastics Marketing Director Keith Christopher Eastman plastics manufacturers in the United States is very supportive of the challenges of 2030, and always pay attention to energy efficiency it brings and the importance to the built environment

The main material of the plastic doors and windows is specially formulated rigid PVC PVC profiles. Quanex Building Products Corporation, director of marketing, Rick Jackson, the market leader in the window frame material is PVC, it's becoming the most popular window frame material depends on its durability, low maintenance and ease of use. NASDAQ study published in the study of materials and building products designed to show that the PVC material accounted for 66% market share. "The key is PVC and constantly improve the technology, as well as long life, PVC is among the leading high-performance category." Jackson explained.

Plastic building materials contribute to the building energy efficiency

Building energy consumption currently accounts for society as a whole final energy consumption of 1/3, including the energy consumption of building applications for heating and cooling energy consumption and production of building materials. China's climate is characterized by four distinct seasons in most parts of cold in winter and hot in summer, with the improvement of living standards, heating and cooling energy consumption has grown rapidly. Past the northern cold and cold regions of heating, rarely use air conditioning in the summer. Winter to heating and summer air-conditioning have been quite common, so the construction industry energy consumption increased year by year the proportion of total energy consumption in the community. Many cities formed in the summer and winter electric orgasm, or even want to restrict the industrial use of electricity to the residents and electricity.

Heating and cooling energy consumption depends on the performance of thermal insulation of buildings (both so-called building envelope thermal performance) and heating and cooling of the thermal efficiency of the system. According to a survey by the Ministry of Construction, China's building envelope thermal insulation properties, low energy efficiency of heating and air conditioning systems, building waste is serious now close by the heating energy consumption of per unit area in China than the climatic conditions in developed countries is about 3-4 times . Recently the hottest topic of the construction industry in China is building energy efficiency. From the central to local levels of government to do so. China's 'cause of building the "Eleventh Five-Year" plan' requires new buildings to strict implementation of the 50% of the energy-saving design standards, major cities and cold, cold regions to start saving 65% of new building energy efficiency design standards, while vigorously on both residential and public buildings for energy saving. In the country an unprecedented boom 'of' building energy efficiency in the development and application of building plastic has been widely appreciated.

At the same time, in a large proportion of building energy consumption in heating and cooling energy consumption through the building envelope loss. The countries of the world experience has shown to improve the thermal performance of building envelope can greatly reduce energy consumption. Must in order to reach the external walls and roof insulation requirements in the structure using a low heat transfer materials, traditional building envelope materials is very difficult, even impossible, to meet the requirements. Therefore, the requirements of building energy-efficient exterior walls and roof are now commonly used composite structure, a layer of thermal insulation building materials in the structure. Building insulation materials there are many varieties, such as foam cement, rock wool, glass wool, foam, etc., have their own advantages and disadvantages and scope of application. After years of practice, the construction industry in China has been recognized in most occasions, a variety of foam is the most competitive of the thermal insulation material, the main advantage of good thermal insulation properties, light weight, non-absorbent, easy construction and low prices.

In each area can see the contribution of the development and application of plastics for energy conservation. In addition to the outside because the light weight, often derived from plastic unique superiority, such as wear resistance, corrosion resistance, etc.. Long life, energy saving. For example: the oil injection pipe of the oil industry in the past used in the steel because the steel pipe corrosion resistance of low life. According to a survey conducted by the Shengli Oilfield Administration, steel pipe is put into operation in 4-5 years after the need to be replaced because of corrosion. In recent years, China has been increasingly using a variety of reinforced plastic pipes, glass pipe, and reinforced plastic pipe the RTP. Another example: China's oil extraction pump wells and excellent wear resistance of ultrahigh molecular weight polyethylene UHMW-PE liner service life can be improved several times. Such instances abound.

Broad prospects for the development of Chinese plastic building materials

From the national development strategy, plastic building materials have broad prospects for development. China's per capita energy resources it takes is a serious shortage, according to statistics, China accounts for half of the amount less than the world average per capita energy, oil is only one tenth. Therefore, the CPC Central Committee and State Council to build a resource-saving, environment-friendly society, "energy saving" national development strategies to promote the application of plastic building materials with energy-saving effect, in line with national development strategies.

In the pipeline area, the plastic pipe in energy efficiency more superior features than other channels. The plastic pipe production and low energy consumption, only 30% to 50% of the steel pipe and cast iron pipe; plastic tube during use is also lower than the metal pipe and concrete pipe, plastic pipe wall surface roughness of only 0.009 ~ 0.01mm, far less than the steel pipe and cast iron pipe, plastic pipe conveyance energy consumption than the metal tube can be reduced by 50% or more, such as PVC-U pipe for water supply than the steel pipe can save 62% to 75% for drainage than the cast iron pipe energy-saving 55% to 68%.

In the field of door and window materials, plastic doors and windows in energy efficiency more superior features than other doors and windows. Low energy consumption and production of plastic doors and windows to produce one ton of steel, 4.5 times the energy consumption to produce one ton of plastic (PVC), the energy consumption of producing 1 tonne of aluminum compared to 1 ton of plastic (PVC), namely plastic ( PVC): steel: aluminum = 1:4.5:8; plastic door and window heat loss during use, such as the thermal conductivity of the PVC profiles for aluminum 1/1250, 1/357 of the steel sections, combined with PVC window can be made multi-cavity structure, which closed cavity, the air's thermal conductivity is only 0.04Cal/mh ℃. Thus, the plastic doors and windows is the minimum heat loss windows and doors.

Therefore, from the national energy development strategy point of view, plastic building materials have broad prospects for development. Liao, president of the China Plastics Processing Industry Association, said the plastic building materials will be welcomed by consumers, will also be widely used and will become the new hot spots of consumption and new economic growth point. "With the variety of plastic building materials gradually series, matching and standardization, as well as environmental protection and energy saving requirements and to promote the application of force to increase all kinds of plastic building materials such as plastic pipes, doors and windows, polymer waterproof materials, decoration, decorative materials, insulation materials demand for building materials and other plastics will have a more substantial increase. "Liao said.
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