-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Paint
harmful substances are formaldehyde, benzene, TVOC and so on. TVOC is the total volatile organic compounds, including benzene, toluene, xylene and so on. It is not only a pregenerate of PM2.5, but also a major component of photochemical pollution.
"13th Five-Year Plan" outline clearly, in key regions, key industries to promote the total emission control of volatile organic compounds, the total national emissions decreased by more than 10%.
key industries include petrochemicals, organic chemicals, surface coating, packaging, printing and so on.
. . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The "Shenzhen Standard" (furniture category) will be officially implemented from January 1, 2017, and the use of solvent-based
coatings
and solvent-based adhesives will be completely prohibited in the Shenzhen area from May 1, 2017.
solvent-based coatings? Why is it prohibited? For consumers, how can we tell if a solvent-based coating is used in furniture? With these questions, the reporter interviewed the relevant experts.
should solvent-based coatings be banned?
" solvent-based coatings mainly contain harmful organic solvents. Peng Shoulden, a researcher at the National Urban Environmental Pollution Control Technology Research Center, said.
solvents used in solvent-based coatings? Why disable it? Zhang Ren, Secretary-General of the Residential Decoration And Renovation Committee of the China Building Decoration Association, said,
A building coatings
are divided into solvent-based coatings and
water-based coatings
. Solvent-based coatings are organic solvents as a dispersion medium made of architectural coatings, mostly formaldehyde and other thinners, is currently the most widely used, the most mainstream coatings, its main varieties are also known as paint.
, the main types of coatings and adhesives used in the furniture industry are solvent-based, accounting for about 95%, and most of the thinners used in solvent-based coatings are toxic to humans. In particular, solvent-based coatings in the curing process, will release toxic organic solvents, if the human body for a long time inhalation will cause chronic poisoning.
solvent-based coatings in addition to human health, but also a negative impact on the environment. "Organic solvents evaporate and become pre-bodies for atmospheric photochemical reactions, which are the main source of photochemical smoke," Peng explained. According to data released by the China Coating Industry Association, the total annual VOCs emitted by the coating industry into the atmosphere are about 4.3 million tons, of which paint accounts for about 98 percent. Banning solvent-based coatings can effectively reduce VOCs emissions in Shenzhen by about 40% and reduce the degree and extent of photochemical pollution.
Although solvent-based coatings are not friendly to the human body and the environment, solvent-based coatings are still widely used in many fields because they provide a wide range of solubility, making solvent-based coatings with strong aging, good adhesion, smooth coating, wear resistance, acid resistance, water resistance, etc.
can I replace solvent-based coatings?
solvent-based coating has many disadvantages, what can be used to replace it? A new type of environmentally friendly coating, water-based paint, is expected to be a substitute for paint.
Zhang Ren, said that water-based paint is a polymer re-polymerization, zero-aldehyde zero benzene high-tech new materials. The essential difference between water-based paint and paint is that the solvent used in water-based paint is water, and the paint uses organic solvent.
: "Water-based paint compared to paint, no organic solvents, so there is no VOCs emissions." Therefore, compared with paint, water-only paint has low formaldehyde, low irritating odor, environmental protection and so on, at present, the world is promoting water-related paint. The water-used paint uquity rate in western developed countries has reached more than 80%.
data show that China's annual furniture consumption capacity of about 500 billion yuan, is the world's largest furniture consumption market. If you use non-toxic, odorless, healthy and environmentally friendly water-based paint, will completely solve the problem of solvent-based paint air pollution, reduce emissions of a large number of VOCs, human health and the environment have a positive impact. Zhang Ren pointed out: "The furniture industry should be forced to use water-related paint, the elimination of traditional paint." Although
water-only paint is more environmentally friendly than paint, market awareness is not high, relatively high costs and spray process requirements hinder the popularity of water-quality paint market. The cost of water-based paint furniture is 30% to 50% higher than the cost of paint furniture, plus not only paint replacement, but also related to production line transformation and product changes, need to invest tens of millions of dollars, at least after at least two years to complete the full line transformation. As a result, few businesses are willing to produce water-only lacquered furniture. At present, China's water-only paint furniture market share is only 5%.
In order to promote environmentally friendly water-based paint, on July 1, 2015, Beijing officially implemented the "Standards for The Emission of Atmospheric Pollutants in the Wood Furniture Manufacturing Industry", which pushed the paint out of the market and required that furniture manufacturers be accepted in 2017 to reduce atmospheric pollutants and volatiles. In 2017, Shenzhen Habitat Environment Commission will also focus on promoting the furniture industry "oil-to-water" transformation, increase support and inspection efforts, the proposed introduction of policies to provide financial support for enterprises, accelerate the promotion of water-reperfite applications, push forward the "oil-to-water" and other environmental protection technology development.
can I tell the difference between water-usable paints?
can you tell if the furniture uses water-only paint? "For consumers, it's mainly through odors that distinguish between paint and water-based paint," Peng said. Water paint is generally non-irritating. Zhang
said: "Ordinary consumers can use multi-smelling, multi-look, multi-question method to identify water-based paint and paint." "
smells, it smells. Paint can give off a lot of irritating odors, which can irritate the eyes and nasal mucous membranes, cause tears, make the nose uncomfortable, and some may cause allergies. Water paint, on the other hand, is non-toxic and tasteless and contains no harmful chemicals.
look at, that is, look at the logo. Some paints are odorless by adding flavor or using low-flavoured materials. Consumers must look more at the purchase of product-related environmental indicators to meet the standards. Secondly, the water-only paint coating is relatively thin, a closer look or caress can feel the texture of the wood itself, the film is also relatively soft. And the paint coating film is very smooth and hard.
ask more questions, that is, ask sales. In the purchase of more asked sales staff manufacturer's qualifications, coating situation, as far as possible to choose formal manufacturers to produce and sell products.