Hydrophobic anti-icing composition

 

(57) Abstract:

The invention relates to the field of construction and operation of residential and industrial buildings and structures and can be used to protect their roof and other elements from moisture and from an intensive process of icing. Describes hydrophobic anti-icing composition comprising a siloxane polymer, filler and hardener. It differs in that the filler it contains chloroparaffin. The use of the above composition provides high performance relative elongation, enhanced functionality and low cost. table 1.

The invention relates to the field of construction and operation of residential and industrial buildings and structures and can be used to protect their roof and other elements from moisture and from an intensive process of icing.

For the assessment of novelty and inventive step of the claimed solution consider a number of known technical devices of similar purpose.

Known anti-icing composition based on sodium chloride, including potassium chloride, magnesium chloride, hexacyanoferrate Kalin RF N 2039072, 09 K 3/18.

The disadvantage of analogue is the high cost and low mechanical characteristics.

Known hydrophobic deicing composition based on silicon-containing polymers and toluene, which as a silicon-containing polymer contains polyphenylsiloxane, phenylsilsesquioxane, polyethylsiloxane, oligodimetilsiloksana and toluene, and see.with. N 1442528, 09 K 3/18.

By the greatest number of similar features and achieved when using the result of this technical solution is chosen as the prototype of the claimed invention. The disadvantages of the prototype, which does not allow to reach this goal is the high cost of the original component is a siloxane polymer, and the lack of high physical-mechanical properties of the coating, which is made on the basis of this composition, such as tensile strength and relative elongation (80%). These drawbacks greatly reduce the functionality of the composition and, accordingly, possible areas of application.

The objective of the invention is the creation of a hydrophobic anti-icing compositions, providing a high physico-mechanical is the essence of the invention is expressed in the following essential features, sufficient to achieve the above technical result.

According to the invention a hydrophobic anti-icing composition comprising a siloxane polymer and a curing agent, characterized by the fact that it further comprises chloroparaffin as filler.

This is a set of essential features that provide technical result in all cases to which the requested amount of legal protection.

In addition, the claimed solution has optional features that characterize its special cases, the specific form of its material embodiment or special conditions of its use, namely:

as the siloxane polymer used siloxane block copolymer "LESTOIL - CM",

- the content of chloroparaffin is in the range of 10.0 to 50.0 wt.%.

The claimed technical solution is new, as is characterized by the presence of a new set of features missing for all we know the technical objects of similar purpose.

Direct technical result that can be obtained when implementing the claimed combination of features, physical characteristics, coatings, manufactured from this composition, as the tensile strength and elongation.

This technical result is not a consequence of the known properties shown separately next known from other technical objects characteristics, such as chloroparaffin, and is the only property of the entire claimed in the first claim set of features.

Obtaining mentioned technical result provides the appearance of the object of the invention in General, the number of new useful properties, namely, ensuring high level of relative elongation of the coating, enhancing their functionality, low cost.

Specified allows you to recognize the claimed technical solution meets the criterion of "inventive step".

The claimed composition was prepared by dissolving in normal conditions siloxane polymer, for example siloxane block copolymer of the brand "LESTOIL - CM", aromatics (toluene and others) or polar (ethyl acetate and others ) solvent, after which the resulting solution is added chlorine-paraffin and provide its complete dissolution.

In the resulting composition before application to impose a hardener, such as metalt the m composition by any of the known methods of coating materials applied to protect the surface of the object, forming a rugged, reliable, waterproof and anti-icing coating.

Comparative physico-mechanical properties of coatings made with the use of several specific variants of the claimed compositions shown in the table.

As can be seen from the table, adding in the composition of chloroparaffin leads to a sharp increase in one of the main indicators is the relative elongation while maintaining the other rates high enough. Thus, coating, made using the claimed compositions have high strength and due to the large relative elongation successfully operate in a wide temperature range from -50oC to + 110oC.

The cost of the composition is significantly reduced due to the low cost of chloroparaffin, partially replacing expensive siloxane polymer.

The industrial applicability of the claimed technical solution is confirmed by the successful test results of the coatings made with its use on a number of construction projects S. Petersburg.

Using the stated solution compared with all known means unionline opportunities reduced cost.

1. Hydrophobic anti-icing composition comprising a siloxane polymer and a curing agent, characterized in that it further comprises chloroparaffin as filler.

2. The composition according to p. 1, characterized in that as the siloxane polymer used siloxane block copolymer "LESTOIL-CM".

3. The composition according to PP.1 and 2, characterized in that the content of chloroparaffin is in the range of 10.0 to 50.0 wt.%.

 

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