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Shaving board made of mudflat plants and manufacturing method thereof

A particleboard and tidal flat technology, used in applications, household components, flat products, etc., can solve the problems of high price, lack of wood resources, and stay in small-scale production, so as to reduce the pressure of supply and demand, save natural wood resources, and save foreign exchange expenses. Effect

Inactive Publication Date: 2015-04-22
南京立宇机电设备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the lack of wood resources has become a bottleneck restricting the development of wood processing in my country. In order to solve the problem of raw material supply, since the 1990s, the United States, Canada, China and other wood-based panel countries have begun to develop artificial board, but today, the above-mentioned industries are still in the stage of small-scale production, the main obstacle is that the isocyanate (MDI) adhesive used for rice straw is too expensive

Method used

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  • Shaving board made of mudflat plants and manufacturing method thereof
  • Shaving board made of mudflat plants and manufacturing method thereof
  • Shaving board made of mudflat plants and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0034] Castor stalks are used as raw materials to manufacture particleboards. Castor stalks are produced in Zibo, Shandong, with a height of 4-5m and a diameter of 5-10cm. The chemical composition is shown in Table 1. Use urea-formaldehyde resin as adhesive: urea-formaldehyde resin adhesive (UF), commercially available, with a viscosity of 50s (No. 4 paint cup), grade E1, and a solid content of 65%. Curing agent: ammonium chloride (NH 4 Cl), analytically pure, added in an amount of 1% of the solid content of the urea-formaldehyde resin. The castor stalk shavings were prepared with the same equipment as the wood shavings, and were paved manually in the laboratory. The size of the board was 300mm×300mm×10mm (length×width×thickness). The hot-pressing temperature is 150°C, the hot-pressing time is 30s / mm, the sizing amount is 12%, and the hot-pressing pressure is 315MPa. The performance of the board can meet the requirements of the national ordinary particleboard standard for int...

Embodiment 2

[0038]Pennisetum is used as raw material to make particleboard, hybrid Pennisetum, 2.5-3m high, 2-4cm thick stem, raw material stored for about 6 months without roots, with some leaves, grass stalk skin is blue-yellow, the main raw material is chemical The ingredients are shown in Table 2. The urea-formaldehyde resin adhesive is self-made, with a solid content of (50±2)%. Curing agent NH 4 Cl (solid). Pennisetum particleboard has a format size of 320mm×320mm and a thickness of 10mm. The hot-pressing process parameters are 13% glue, 40s / mm (board thickness) and 180°C hot-pressing temperature. The performance of the manufactured particleboard can reach the corresponding National standard requirements.

[0039] Table 2 Chemical composition of hybrid pennisetum / %

[0040]

Embodiment 3

[0042] Vetiver is used as raw material to make particleboard. Vetiver is taken from the planting base of Vetiver of Nanjing Municipal Bureau of Land and Resources, and the cut part above 20cm above the ground. The stalks are 1.7m~2.2m high, the section of the stalks is slightly flattened and cylindrical, and the long and short diameters are 0.69cm~0.83cm and 0.53cm~0.67cm on average. The leaves are 0.15cm~1.0cm wide and 30cm~130cm long. The mass ratio of stem to leaf is 1.5~2.4:1 when air-dried. The main components are shown in Table 3. The manufacturing process of particleboard is as follows:

[0043] 1) The air-dried vetiver is crushed to make shavings of a certain shape and size, and dried to a moisture content of 3% to 5%.

[0044] 2) Apply adhesive and waterproofing agent paraffin emulsion in the glue mixer, the amount of adhesive applied is 10%, and the amount of waterproofing agent applied is 1%.

[0045] 3) Hot pressing after paving with sizing shavings, the paving...

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Abstract

The invention discloses a shaving board made of mudflat plants and a manufacturing method thereof. The manufacturing method includes: 1) preparation of raw materials; 2) performance analysis of the raw materials; 3) preparation of wood shavings; 4) wood shaving drying; 5) sorting of the wood shavings; 6) unit storage; 7) sizing; 8) mat formation of the wood shavings after being sized; 9) slab pre-pressing; 10) hot pressing; 11) cooling; and 12) grading, storing and performance detecting. The manufacturing method has the advantages that, a great quantity of idle mudflat plants are effectively and comprehensively used, natural timber resources are saved, rice and wheat straw boards with isocyanate as adhesive on markets are replaced, large-scale development and production is achieved, supply and demand pressure for natural timber of rare trees in the domestic market is reduced by replacing a part of natural solid wood with the mudflat plants, cost of the shaving board made of mudflat plants is lower than a shaving board made of wood by using urea-formaldehyde resin adhesive which is low in price, and furthermore the manufacturing method is beneficial for facilitating implement of natural forest protection engineering and sustainable development of forestry and artificial board industries in China.

Description

technical field [0001] The invention relates to a chipboard and a method for producing particle boards using tidal flat plants as raw materials, and belongs to the field of artificial board manufacturing. Background technique [0002] At present, the lack of wood resources has become a bottleneck restricting the development of wood processing in my country. In order to solve the problem of raw material supply, since the 1990s, the United States, Canada, China and other wood-based panel countries have begun to develop artificial board, but today, the above-mentioned industry is still in the small-scale production stage, the main obstacle is that the isocyanate (MDI) adhesive used for rice straw is too expensive. Contents of the invention [0003] What the present invention proposes is a kind of particle board and method that are made with tidal flat plants, and its purpose is to use the tidal flat crops (pennisetum, salicornia, vetiver) with low lignification degree, high fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/08B27N3/02
Inventor 周定国朱斌徐信武黄润州李慧媛石晶黄思维龙海蓉陈淼朱云鹏陈柏业
Owner 南京立宇机电设备制造有限公司
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