Press composition for the production of combustible materials

 

(57) Abstract:

Usage: the invention relates to woodworking industry, in particular the production of Board materials, and can be used in the manufacture of combustible materials. The purpose of the invention is the improvement of the water resistance and fire resistance materials, reducing consumption of scarce components. Press composition for the production of combustible materials containing a filler in the form of ground wood particles, synthetic resin, ammonium polyphosphates and paraffin, as the synthetic resin contains Dianova resin SJ-N, wt.%: Dianov resin SJ-N 5,0-13,0, ammonium polyphosphates 5,0-12,0, paraffin 0.1 to 0.4, filling the rest. 1 C.p. f-crystals, 2 tab.

The invention relates to woodworking industry, in particular the production of Board materials, and can be used in the manufacture of combustible materials.

Known press material for the manufacture of plate materials including a filler in the form of wood chips and crushed particles of waste annuals of agricultural production, urea-formaldehyde resins is odstv combustible materials, including a filler in the form of wood fibers, shavings or crushed particles of waste annual plants, synthetic resin, ammonium polyphosphates and paraffin, and as the synthetic resin used urea-formaldehyde or phenol-formaldehyde resin (Patent RU N 2114882, 97/02, B 27 N 3/00, 1997 - prototype).

The disadvantages of the known compositions are low resistance, high consumption of scarce components, a low degree of fire protection boards.

The purpose of the invention is the improvement of the water resistance and fire resistance materials, reducing consumption of components.

This objective is achieved in that the press-composition for the production of fire-resistant wood-based panels containing a filler in the form of ground wood particles, synthetic resin, ammonium polyphosphates and paraffin, as synthetic malls contains Dianova resin SJ-N, while the press composition may have the following quantitative composition, wt.% on the dry matter:

Dianov resin SJ-H - 5,0 - 13,0

The ammonium polyphosphates - 5,0 - 12,0

Paraffin - 0,1 - 0,4

Filler - Rest

The claimed technical solution has the following differences from the prototype:

in katolichestvom composition, wt.% on the dry matter:

Dianov resin SJ-H - 5,0 - 13,0

The ammonium polyphosphates - 5,0 - 12,0

Paraffin - 0,1 - 0,4

Filler - Rest

This will increase the resistance and fire resistance materials, reduce the consumption of components.

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

The claimed technical solution is applicable and will be implemented at the enterprises of the industry in 2000

For the preparation of press-composition used the following components:

the ammonium polyphosphates, THE 2149-062-106-64-029-96;

paraffin, GOST 23683-79

Dianov resin SJ-N TU 2221-001-5747575-96 (Resin Dianova liquid non-lethal) is the product of condensation of diphenylolpropane, formaldehyde and caustic soda, for example, when the total molar ratio, respectively, 1:4,5-5,5:0,9-1,1. The condensation is carried out in the presence of borax.

Dianov resin is not produced, and used the ready.

Press composition was prepared as follows.

Example.

The processing of filler - wood chips, fibers or comminuted particles of waste Dolfin and in a rotating mixer spray through the jet was injected synthetic resin, namely Dianova resin SJ-N. The contents of the mixer was stirred for 5 minutes Received a press composition was dried in an air dryer at a temperature of 110-120oC, formed carpets, podpisivali and extruded in a hot press at a temperature of 170oC for 0.5 min/mm thickness of the plate.

The obtained plate materials were subjected to physico-mechanical tests.

Examples of the compositions shown in table. 1.

Physico-mechanical parameters are made on the sample plates are presented in table. 2.

The invention will increase the resistance and fire resistance materials, as well as to reduce the consumption of scarce components in 2,5 - 3 times.

1. Press composition for the production of fire-resistant wood-based panels containing a filler in the form of ground wood particles, synthetic resin, ammonium polyphosphates and paraffin, characterized in that the synthetic resin it contains Dianova resin SJ-N, which is a product of condensation of diphenylolpropane, formaldehyde and caustic soda in the presence of borax.

2. Press composition under item 1, characterized in that it has the following quantitative son - 0,1 - 0,4

Filler - Ostalnoe

 

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