A kind of flame retardant and high temperature resistant oriented strand board and its preparation method

A technology of oriented particle board and high temperature resistance, which is applied in the direction of chemical instruments and methods, manufacturing tools, flat products, etc. It can solve the problems of low bonding strength, affecting the bonding of urea-formaldehyde resin adhesives, and the decrease of chip bonding, so as to achieve flame retardancy Good performance, stable flame retardant performance, not easy to delaminate

Active Publication Date: 2022-03-29
寿光市鲁丽木业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] (1) To overcome the existing flame-retardant oriented strand board, the flame-retardant ingredients added to it will affect the bonding of the urea-formaldehyde resin adhesive to the flakes, the bonding between the flakes will decrease, and the bonding strength will be low in high-temperature environments;

Method used

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  • A kind of flame retardant and high temperature resistant oriented strand board and its preparation method
  • A kind of flame retardant and high temperature resistant oriented strand board and its preparation method
  • A kind of flame retardant and high temperature resistant oriented strand board and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A flame-retardant and high-temperature-resistant oriented strand board, including a surface layer and a core layer;

[0047] The mass ratio of the surface layer to the core layer is 55%: 45%;

[0048] The pavement angle between the surface layer and the core layer is 45°;

[0049] The surface layer is composed of large shavings, the core layer is composed of large shavings and fine shavings, and the mass ratio of the large shavings to the fine shavings is 70%: 30%;

[0050] The size of the large shavings is 60mm in length, 12mm in width and 0.4mm in thickness;

[0051] The size of the fine shavings is 10mm in length, 4mm in width and 0.4mm in thickness.

[0052] A method for preparing flame-retardant and high-temperature-resistant oriented strand board, including shavings, initial washing of shavings, drying, re-washing of shavings, draining, balancing, curing, drying, mixing, sizing, paving, hot pressing, trimming, sanding Light.

[0053] As for the shavings, large...

Embodiment 2

[0078] A flame-retardant and high-temperature-resistant oriented strand board, including a surface layer and a core layer;

[0079] The mass ratio of the surface layer to the core layer is 60%: 40%;

[0080] The pavement angle between the surface layer and the core layer is 90°;

[0081] The surface layer is composed of large shavings, the core layer is composed of large shavings and fine shavings, and the mass ratio of the large shavings to the fine shavings is 80%: 20%;

[0082] The size of the large shavings is 90mm in length, 25mm in width and 0.9mm in thickness;

[0083] The size of the fine shavings is 25mm in length, 6mm in width and 0.9mm in thickness.

[0084] A method for preparing flame-retardant and high-temperature-resistant oriented strand board, including shavings, initial washing of shavings, drying, re-washing of shavings, draining, balancing, curing, drying, mixing, sizing, paving, hot pressing, trimming, sanding Light.

[0085] As for the shavings, large...

Embodiment 3

[0110] A flame-retardant and high-temperature-resistant oriented strand board, including a surface layer and a core layer;

[0111] The mass ratio of the surface layer to the core layer is 70%: 30%;

[0112] The pavement angle between the surface layer and the core layer is 70°;

[0113] The surface layer is composed of large shavings, the core layer is composed of large shavings and fine shavings, and the mass ratio of the large shavings to the fine shavings is 75%: 25%;

[0114] The size of the large shavings is 120mm in length, 18mm in width, and 0.6mm in thickness;

[0115] The size of the fine shavings is 18mm in length, 5mm in width and 0.6mm in thickness.

[0116] A method for preparing flame-retardant and high-temperature-resistant oriented strand board, including shavings, initial washing of shavings, drying, re-washing of shavings, draining, balancing, curing, drying, mixing, sizing, paving, hot pressing, trimming, sanding Light.

[0117] As for the shavings, lar...

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Abstract

The invention provides a flame-retardant and high-temperature resistant oriented particle board, which comprises a surface layer and a core layer, the surface layer is composed of large shavings; the core layer is composed of large shavings and fine shavings, and the paving angle between the surface layer and the core layer is 45-90°. The present invention also provides a method for preparing flame-retardant and high-temperature-resistant oriented strand board, including shavings, initial washing of shavings, drying, re-washing of shavings, draining, balancing, curing, drying, mixing, sizing, paving, hot pressing, Trimming, sanding. The beneficial effects of the present invention are: the flame-retardant and high-temperature-resistant oriented particle board of the present invention has good thermal stability, is not easy to delaminate and crack when heated, and can ensure stable flame-retardant performance; it is difficult to release toxic substances when heated; the added flame-retardant components can effectively adhere to On the surface of shavings, it has good flame retardant performance and can withstand high temperature attack; it has good physical and mechanical properties and good durability.

Description

technical field [0001] The invention relates to the field of oriented strand boards, in particular to a flame-retardant and high-temperature-resistant oriented strand board and a preparation method thereof. Background technique [0002] Oriented strand board is one of the new types of particle boards. When the shavings are paved and formed, the upper and lower surface layers of the oriented strand board will arrange the shavings mixed with glue in the longitudinal direction according to the fiber direction, and the core layer shavings will be arranged horizontally to form a three-layer structure. , and then hot pressed into oriented strand board. The shape of this particle board requires a large aspect ratio, and the thickness is slightly thicker than that of ordinary particle board. The methods of directional paving include mechanical orientation and electrostatic orientation. The former is suitable for directional paving of large shavings, and the latter is suitable for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02B27N3/10B27N3/14B27N3/20B27N3/18B27N1/02B27L11/02B32B21/04B32B21/13
CPCB27N3/02B27N3/10B27N3/14B27N3/203B27N3/18B27N3/183B27N1/0209B27L11/02B32B21/042B32B21/13
Inventor 张芳焕霍子微葛立军李晓升杨忠华
Owner 寿光市鲁丽木业股份有限公司
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