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High-density composite fiberboard

A composite fiber, high-density technology, applied in reed/straw treatment, pretreatment of molding materials, lamination, etc., can solve the problems of insufficient service life and high production cost of high-density composite fiberboard

Pending Publication Date: 2020-11-13
申蕾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of the existing technology and solve the problems of high production cost, insufficient strength, toughness and punching resistance and short service life of high-density composite fiberboard, a high-density composite fiberboard proposed by the present invention

Method used

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Experimental program
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Effect test

Embodiment approach

[0060] As an embodiment of the present invention, the production method of high-density composite fiberboard comprises the following steps:

[0061] S1: Heat the core board with steam, stop heating when the surface temperature of the core board is 20-30 degrees Celsius, and stick the panel to the two sides of the core board respectively to obtain a semi-finished product. When the surface temperature of the core board is 20-30 degrees Celsius, you can Ensure the highest bonding strength of the core board, while the core board itself is a paste;

[0062] S2: Sprinkle a layer of evenly distributed plant ash on the surface of the semi-finished peripheral core plate obtained in S1, and press it through a cold press. When the core plate height is 1-2 cm during the pressing process, stop extrusion Pressing, through the cold press to carry out the pressing process, can effectively increase the density of the core board and the panel, and at the same time improve the adhesion strength ...

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Abstract

The invention belongs to the technical field of composite fiberboard, and particularly relates to a high-density composite fiberboard. The high-density composite fiberboard comprises two panels and acore veneer, wherein the core veneer is positioned between the two panels; each panel comprises, by mass, 10-20 parts of cement, 5-12 parts of building waste regenerated micro-powder, 15-20 parts of building waste recycled aggregate, 5-10 parts of plant ash, 1-1.5 parts of modifiers and 10-20 parts of fresh sugarcane rinds; the core veneer comprises, by mass, 20-30 parts of crop straw, 10-15 partsof plant ash, 3-5 parts of silane coupling agents, 10-20 parts of desulfurized gypsum, 0.5-1.5 parts of foaming agents and 1-2 parts of waterborne polyurethane adhesives. According to the high-density composite fiberboard, thin strip-shaped sugarcane rinds are added into the panels, so that the fine strip-shaped sugarcane rinds have stronger toughness and tensile strength, and the impact strengthand toughness of the panels are effectively improved; and the antibacterial strength of the high-density composite fiberboard can be effectively improved through the plant ash, and internal corrosionis prevented.

Description

technical field [0001] The invention belongs to the technical field of composite fiber boards, in particular to a high-density composite fiber board. Background technique [0002] Protecting the ecological balance of nature is currently the hottest issue in the world, and the reuse of agricultural straw waste has become the focus of attention. my country is very rich in straw resources, mainly rice straw, wheat straw and corn straw. The main reasons for repeated bans are firstly that the comprehensive utilization of straw is poor, and secondly that some key technical problems have not yet been broken through. Therefore, how to use plant straw reasonably and effectively is not only a topic of strategic significance in the agricultural sector, but also a focus of attention of relevant government departments. [0003] With the deepening and implementation of national environmental protection and sustainable development policies, how to utilize construction waste as a resource ...

Claims

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Application Information

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IPC IPC(8): B28B1/14B28B1/52B28C5/00B27J7/00B27N1/00B27K9/00B27K3/20B27N3/04B27N3/12B32B13/02B32B13/04B32B7/12B32B37/06B32B37/10B32B37/12B32B38/16
CPCB27J7/00B27K3/20B27K9/00B27N1/00B27N3/04B27N3/12B28B1/14B28B1/525B28C5/003B32B5/18B32B7/12B32B13/045B32B37/06B32B37/10B32B37/12B32B38/164B32B2250/40B32B2262/06B32B2307/558B32B2307/7145B32B2266/049
Inventor 申蕾赵纪明
Owner 申蕾
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