Middle (high) density fiber board - polyurethane foam composite board and manufacturing method thereof
A technology of density fiberboard and foam plastic, which is applied in the direction of heat preservation, pipe/pipe joint/pipe fitting, heat exchange equipment, etc., can solve the problem of high cost, and achieve the effect of large heat transfer resistance and low thermal conductivity
Inactive Publication Date: 2008-10-01
JIANGSU DAJIANG WOOD IND
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Problems solved by technology
The cost of this kind of composite board with rigid material as the surface material is relatively high, so domestic and foreign scientific and technological personnel have developed rigid polyurethane foam-poplar wood wool composite board, polyurethane composite sandwich composite board, etc. as Insulation materials for walls and roofs; research and development of high-hardness composite panels composed of polyurethane rigid foam core materials and surface materials as supporting structural materials for walls and roofs
Method used
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Embodiment Construction
[0022] In this embodiment, 10 panels of the product of the present invention with a square size of 60 cm×60 cm and a total thickness of 36 mm are prepared as double panels as an example.
[0023] Such as figure 1 As shown, process one, intercept 20 pieces of flame-retardant medium (high) density fibers with a square size of 60×60 cm and a thickness of 0.5 mm;
[0024] Process 2, take 5 pairs of 80cm long engineering angle steel to fix every two flame-retardant medium (high) density fiberboards (keep the interval between the two boards at 35mm), and make the left and right sides and bottom sides of the two fiberboards Closed;
[0025] Process three, on-site foaming, take two-component polyurethane foam, A component is 450 grams of combined polyether (including monomer polyether and polyester, foam stabilizer, catalyst, flame retardant and filler), and B group Divide into 450 grams of isocyanate, (the weight mixing ratio of A and B components is 1: 1), and make blowing agent w...
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The invention relates to a middle (high) density fiber board-polyurethane foam composite board and the manufacturing method. The composite board is composed of the inflaming retarding middle (high) density fiber board as the panel and the two-component polyurethane foam as the core material. The method step is adopting the middle (high) density fiber board as the mould panel; using the shaped steel or other metal materials to make the mould frame; fixing the mould panel according to the thickness of the composite board; closing the left and the right sides and the bottom of the upper and the lower mould panel; foaming the two-component polyurethane foam in situ; pouring the foaming mixing materials into the die cavity, obtaining the product after the reaction and the rest concreting. The thermal conductivity of the product of the invention reaches 0.029 w / m.k, the sound absorption coefficient is 0.265-0.4; the fire resistance property reaches the standard requirement of the flame resisting materials, with the good effect of inflaming retarding, heat preservation, sound insulation material for the roofing and the wall in the building.
Description
technical field [0001] The invention relates to a manufacturing technology of a composite board, in particular to a medium (high) density fiberboard-polyurethane foam composite board and a manufacturing method thereof. Background technique [0002] Building energy-saving and sound-proof housing have always been a hotly concerned issue in the real estate industry at home and abroad. The development of new thermal insulation, heat insulation and sound insulation materials is an important way to vigorously develop resource-saving and environment-friendly modern building materials industry and construction industry. At present, most of the lightweight composite materials with thermal insulation, heat insulation and sound insulation properties are composited with thermal insulation materials as core materials and rigid materials as surface materials. Among them, the heat insulation material of the core material is mainly polyurethane foam plastics with excellent physical and mec...
Claims
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Inventor 徐长妍朱典想邓玉和刘江波于洋
Owner JIANGSU DAJIANG WOOD IND