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"Austrian Shunda" brand of environmentally friendly water-curable polyurethane material runway

Number of visits: Date:2016-05-10 10:57

Austrian Shunda "brand of environmentally friendly water-curable polyurethane material runway popular talk is for the purpose of environmental protection, the use of low odor, non-toxic raw materials to produce one-component material by runway under nitrogen, add water to generate useful when urea-site shop glue key polyurethane elastomer release carbon dioxide.

Material principle

The reaction of isocyanate with water, first generate unstable amino acid, an amino acid is then decomposed into carbon dioxide and amines. If an excess of isocyanate in the presence of the resulting amines will continue to react with an isocyanate to produce substituted urea, the reaction is expressed as follows:



 

Seen from the above reaction formula, a water molecule with two reactive NCO groups, i.e., the water can be seen as a chain extender or curing agent, the molecular chains grow, to form a polymer (polyurea).
 

product advantages

(1) at a specific ratio of polyether diol, a polyether triol, the PAPI (low toxicity and non-volatile) as a prepolymer feedstock. This material does not require solvents contain benzene, chlorinated hydrocarbons, heavy metals, non-toxic and harmless, is in line with HBC12-2002 & ldquo; Requirement for Environmental Products & rdquo; green products.

(2) This eco-friendly runway is expected to mix fillers, additives and pre-polymer, a single component made of a material, ease of production, transportation and construction.

(3) This eco-friendly materials to track water as the chain extender, because the water is not only non-toxic, and can -NCO reactive free and to break down urea into useful key and non-toxic carbon dioxide, so that the product does not produce any toxic .
 

Construction Technology

(1)Flatness detection site;

(2)Special water-curable sealing layer;

(3)Layered materials and the laying of water-curable filler particles of PU Primary;

(4)Caesar skid particle surface;

(5)Crossed。

Laying PU grassroots level, should be water-curable urethane rubber mixed with water and filler particles according to the proportion stirring, paving the sealing layer, the thickness shall meet the design requirements。 Depending on the weather conditions and the ambient temperature can be appropriately adjusted ratio of added water, up to 15%。

Laying plastic particles surface should meet the following requirements:

秒速飞艇网址 After the water curable polyurethane hydrocolloid ingredients by stirring craft ratio, then coated on the PU grassroots Caesar skid particles;

After the particle surface layer of dry material, it should not bonded particles recovered.

Clean-up, line shall meet the following requirements:

According to design requirements to all Puwan plastic surface, the overall clean-up site, the plastic runway surface is dry, no water.

According to the design requirements for scribing marking paint. Carbon, so that the product does not produce any toxicity.

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