90% exterior wall thermal insulation material is not environmentally friendly polyurethane is expected to quickly replace-Iota

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News > Dynamic industry > 90% exterior wall thermal insulation material is not environmentally friendly polyurethane is expected to quickly replace

90% exterior wall thermal insulation material is not environmentally friendly polyurethane is expected to quickly replace

Development planning in Chinese Polyurethane Industry Association, five years after thepolyurethane material application rate will reach about 50% of the thermal insulation material. "But now Chinese market share of less than 10%, while the share ofpolyurethane insulation materials in the foreign market is very large, USA reached 57%,Japan 32%." In April 18th, Chinese polyurethane green energy in East China Forum,members of the Yang Zongkun polyurethane high-tech new materials R & D team of experts for analysis.

Polyurethane is the best energy-saving insulation materials, because of its long service life, good heat insulation effect, temperature performance and energy saving and environmental protection and has been widely used in the field of building insulation andfire protection, occupy a considerable share in the building materials market.

However, there is an awkward question, is compared with the same polystyrene board insulation material, the cost price is higher than that of polystyrene board. The class B1insulation materials, polyurethane thermal insulation material is 1800 yuan / square meter, while the XPS is 650 yuan / square meter, EPS is 550 yuan / square meter.Coupled with the vicious competition on both inside and outside the industry, resulting in the China polyurethane insulation materials market share of less than 10%.

At present, the market of insulation materials in China mainly by EPS and XPS(hereinafter referred to as the foaming polystyrene) etc, the majority of products by adding flame retardants in raw materials to improve the fire performance of thermal insulation materials. Among them, the main raw material for the production of the thermal insulation material is six ring twelve alkyl bromide (HBCD), an insulating, textile and electronic fields commonly used flame retardant. But in 2013 May, the United Nations "on persistent organic pollutants (POPs) of the Stockholm Convention" voted unanimously passed a ban: ban the production and use of six bromo alkyl ring twelve worldwide(HBCD).

Six ring twelve alkyl bromide (HBCD) is a kind of high bromine content of alicyclic additive type flame retardant, mainly for EPS foaming polystyrene, polypropylene, epoxy resin,silicone resin and other resin of styrene. But at the same time, they also can be a long time in the environment, and accumulate in biological tissue, the possible effect onhuman health. Deputy Secretary General of China flame retardant society long, Beijing Technology and Business University associate professor Qian Lijun said, HBCD is a new type of persistent organic pollutants (POPs), is the invisible killer of exterior wall thermal insulation material, carcinogenic, teratogenic and other adverse effects.

It seems that many experts participating in the polyurethane has good heat insulation,fire retardant, sound insulation function, as well as green, environmental protection and energy saving effect, is the best alternative to currently on the market the harmful heat insulating material. Especially in the policy of deregulation of organic insulation materials,polyurethane into a stage of rapid development.

After the Shanghai fire of 2010 March 4, 2011, the Ministry of Public Security issued the"notice on further clarifying the relevant requirements of fire supervision and management of civil building exterior insulation materials" (the elimination of [2011]65,commonly known as No. 65), the provisions of the civil building exterior insulationmaterials by combustion properties of a material.

China Polyurethane Research Institute, Professor Yang Zongkun pointed out that the organic material thermal insulation of building products is not up to A-level, and as thepolyurethane organic material do composite processing, can reach up to B1 (flame retardant). This means that, under the "No. 65, polyurethane insulation material on the wall.

Because the organic insulation materials occupy 90% of the market share, if in strict accordance with the "No. 65", almost no material can meet the requirements, therefore,in December 3, 2012, the Ministry of public security to revoke the No. 65, organicinsulation materials of deregulation.

Professor of Beijing Institute of building science senior engineer Tu Fengxiang pointed out that the polyurethane obvious advantages, such as relatively thin, heat preservationeffect is also very good, so the polyurethane industry has broad prospects.

At present, Pu heat preservation material has been the Ministry of industry and information technology into the green building materials engineering. Forum site, expertsin Suzhou Bo the new Mstar Technology Ltd initiated a synergistic flame retardant polyurethane organic and inorganic insulation board as an example, in-depth study on the performance and the market situation of new environmental protection polyurethaneinsulation materials and the future prospects of china.

It is understood, Suzhou Bo the new Mstar Technology Ltd in 2013 settled in Yushan Town, the first in the country to introduce organic inorganic functional materials,insulation materials, the product is to declare the national high technology research and development program. The forum organized by the Architectural Society of China,Shanghai Polyurethane Industry Association, Dongtai Municipal Science and Technology Bureau, Suzhou Bo the new Mstar Technology Ltd and other units.