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There is no small matter between breathing, our life is a breath between things. Over the past few years, air pollution has become more and more serious, and environmental pollution can be seen everywhere. Air pollution contains more than 500 kinds of volatile organic compounds (VOCs), which are more harmful formaldehyde, benzene, ammonia, etc., easy to our blood, respiratory system, immune system and other damage, easy to cause headache dizziness, chest tightness nausea, allergies and other diseases, serious even can cause cancer. A large number of shocking facts prove that air pollution has become a threat to human health "invisible killer."talk about VOCs, And I want to tell you a story. 08 Olympic Games, the United States Olympic athletes came to China, when they got off the plane when they put on masks, because there were other countries on the channel athletes out together, and they did not wear masks, so we had a lot of media to the United States players. But it will be many years before we look at this and think that the American players may be "a little wronged". Why? Because the 1970 Amendment to the Clean Air Act first proposed to control VOCs emissions. So the old american players will have the action mentioned earlier is very large lying probably because people have long been aware of the damage VOCs do to the body, and then we did not have such awareness.
before we talk about china's VOCs control methods, we first understand how voCs are controlled abroad. The amendments to the Clean Air Act of 1970 in the United States explicitly set out how to reduce VOCs by 70% by 2000 compared with 1970? With the air pollution in recent years, both at the national level and at the mass level have a new understanding of VOCs.
we may wish to look at the new national VOCs standard:
in view of this, China's prescient enterprises have been ahead of the way, for example: 2016 in the German blue sky agency testing,
three trees
water-based woodware
products passed the blue sky environmental certification
; The national giants of the
of paint have moved ahead.
How can we fall behind? Mainly
membrane-forming substance
is polymer resin, polymer residue monomer is the main source of VOCs, how to reduce the residual monomer, improve the conversion rate of monomer is an effective way to reduce VOCs in the main membrane-forming substances. At present, the most commonly used resin in water paint is acrylic, emulsion polymerization is the most commonly used method. The monomer residuals can be reduced by changing the polymerization process, such as controlling the drop acceleration of the monomer, changing the polymerization temperature, prolonging the reaction time, adjusting the content and type of the trigger.Most of the additives in the
water paint have been watered down, and the pH regulator spent naOH and NH3 H2O instead of the traditional AMP-95, greatly reducing the volatility of harmful substances. For heavy metal ions, it is optional to replace with raw materials that do not contain heavy metal ions, so that water paint and solvent-based coatings appear to be nearly consistent in performance, but water paint reduces the release of many harmful substances.
talked about here, we look back at the garblechemical group recently initiative to develop "green design product evaluation technical specifications water-based
building coatings
" standard move, this is the trend. At various recent meetings, whether it is furniture enterprises or
paint enterprises
have called for the joint upstream and downstream forces, to work out a set of green furniture standards, so that consumers can buy peace of mind, with peace of mind.