Press composition for manufacturing insulation material

 

(57) Abstract:

The invention relates to building materials and can be used in the manufacture of heat-insulating material. The purpose of the invention is improving the insulating ability of the material by reducing its density and increasing porosity. Press composition for manufacturing insulation material includes a filler in the form of wood fibers, wood chips, or crushed particles of waste annual plants, ammonium polyphosphates, paraffin wax and the binder is a synthetic resin, and as a synthetic resin it contains phenol - or urea-formaldehyde resin, with a press composition has the following quantitative composition, wt.%: the synthetic resin 23-31; ammonium polyphosphates 24-37; paraffin 2-3,5; filler - the rest. 2 C.p. f-crystals, 2 tab.

The invention relates to building materials and can be used in the manufacture of heat-insulating material.

The famous press weight for fabrication of thermal insulating material comprising alumacraft binder, urea, wood fiber and additive in the form of a synthetic resin nd Flammability of the material obtained.

Also known raw mix for the production of teploizoljatsionnogo material containing alumacraft binder, urea and wood fibre. (A. C. USSR N 927788, CL. C 04 B 43/12, B 29 J 5/00, 1980 - prototype).

The disadvantages of the known technical solutions are: high coefficient of thermal conductivity of insulating material and high consumption due to its high density, thickness restriction due to increased material consumption and increase consumption of chemicals.

The purpose of the invention is improving the insulating ability of the material by reducing its density and increasing porosity.

This objective is achieved in that the press-composition for insulating material including a filler in the form of wood fibers, wood chips, or crushed particles of waste annual plants, phosphate component and a binder, as a phosphate component contains ammonium polyphosphates, and as the binder is a synthetic resin, and as a synthetic resin it contains phenol - or urea-formaldehyde resin, with a press composition has the following quantitative composition, wt.%:

The synthetic resin - t the following differences from the prototype: as a phosphate component press composition contains ammonium polyphosphates; as a binder press composition contains a synthetic resin as the synthetic resin used phenol - or urea-formaldehyde resin; press composition has the following quantitative composition, wt.%:

The synthetic resin - 23 - 31

The ammonium polyphosphates - 24 - 37

Paraffin - 2 - 3,5

Filler - Rest

This will improve the heat insulating ability of the material by reducing its density and increasing porosity.

Viewed in us patent information the Fund has not found similar technical solutions and technical solutions with these distinctive features.

The invention is applicable and will be implemented in the industry in 1999

For the preparation of press-composition used the following components: urea-formaldehyde resin, mark KF-MT-15, TU 6-06-12-88; phenol-formaldehyde resin, mark SFI 3014, GOST 20907-75; paraffin, GOST 23683-79

Press composition was prepared as follows.

Example. The filler in the form of wood fibers, wood chips, or crushed particles of waste annual plants are placed in a high-speed mixer, which served separately urea-formaldehyde yriu mixture form in carpets and pressed hot way at 180oC, 0.15 to 0.35 MPa when the duration of the pressing of 1.5 min/mm Components were taken in the ratio indicated in the claims. The ammonium polyphosphates performed in this mixture, the function of a flame retardant and a blowing agent, resulting in the mixing of components was foaming synthetic resin and then curing during hot pressing.

This gave the opportunity to increase the porosity of the insulating material, which will reduce its consumption, to produce a material of higher thicknesses than in the prototype, and to increase its insulating properties.

The obtained heat-insulating material was subjected to physical and mechanical tests.

Examples of the compositions shown in table. 1.

Physical and mechanical properties produced according to examples of the materials are presented in table. 2.

1. Press composition for insulating material including a filler in the form of wood fibers, wood chips, or crushed particles of waste annual plants, phosphate component and the target additive, characterized in that it as a phosphate component contains ammonium polyphosphates, as the target add is characterized in that as the synthetic resin it contains phenol - or urea-formaldehyde resin.

3. Press song on the PP.1 and 2, characterized in that it has the following quantitative composition, wt.%:

The synthetic resin - 23 - 31

The ammonium polyphosphates - 24 - 37

Paraffin - 2 - 3,5

Filler - The Rest

 

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