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Shaving board containing tackifier and manufacturing method of shaving board

A tackifier, particle board technology, applied in flat products, other household appliances, household components, etc., to improve the strength of slabs, not easy to collapse

Inactive Publication Date: 2018-05-01
WANHUA ECOBOARD INTEGRATED EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the background technology, the present invention provides a particle board containing a tackifier, which can ensure a smooth transition of the slab, and is not prone to tearing, edge collapse, and loose slabs.

Method used

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  • Shaving board containing tackifier and manufacturing method of shaving board
  • Shaving board containing tackifier and manufacturing method of shaving board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The raw materials used are shown in the table below:

[0047]

[0048] Specific steps are as follows:

[0049] S1. Equipment debugging

[0050]Before paving, adjust the intermediate belt speed and steel belt speed for slab transition. After adjustment, the intermediate belt speed is slightly less than 8.6m / min (143.33mm / s belt line speed). After adjustment, the steel belt speed is: 143.33mm / s; the steel strip entrance angle under the test conditions is calculated to be 18°. In other embodiments, the entrance angle of the steel strip may also be 23°.

[0051] S2. Sampling

[0052] Take the surface and core layer materials after applying a sufficient amount of MDI glue, the surface and core layer sizing ratios are 5% and 4% respectively, and the moisture content of the surface layer is measured to be 9.20%, and the moisture content of the core layer is 5.81%. The material is wheat straw, and the core material is fruit wood chips. The sieving value of wheat straw on...

Embodiment 4

[0067] Change the tackifier applied in Example 1 to 50-55% solid content, including 15-20% methyl cellulose, 30-35% polyvinyl alcohol tackifier, and other steps under the same situation , the resulting slab also achieved a smooth transition.

Embodiment 5

[0069] The tackifier applied in Example 1 was changed to a vinyl acetate tackifier with a solid content of 50-55%, and the obtained slab also achieved a smooth transition when other steps remained unchanged.

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Abstract

The invention provides a shaving board containing a tackifier and a manufacturing method of the shaving board. The shaving board comprises surface layers and a sandwich layer clamped by the surface layers, wherein each surface layer comprises the following components of, by weight, more than 88.5% of straw shavings, 3-10% of isocyanate glue and 0.5-1.5% of tackifier; the sandwich layer comprises the following components of, by weight, more than 90% of wood shavings, 2-9% of isocyanate glue and 0.2-1% of tackifier; and the tackifier is a water dispersible polymer.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, and in particular relates to a particle board containing a tackifier and a manufacturing method thereof. Background technique [0002] At present, my country's particleboard manufacturing is still dominated by wood raw materials. After the implementation of natural forest protection projects and timber logging restrictions, many enterprises have fallen into the plight of shortage of timber resources. my country is rich in crop straw resources, and the main chemical composition of straw is close to that of wood. If crop straw is used instead of wood resources to produce particleboard, it can greatly relieve the pressure on particleboard companies from raw materials and promote the sustainable development of the industry. [0003] Isocyanate adhesives are usually used in the existing straw particleboard production technology. Due to the poor initial viscosity of isocyanate and the low co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/10
CPCB27N3/02B27N3/002B27N3/10
Inventor 赵治美
Owner WANHUA ECOBOARD INTEGRATED EQUIP CO LTD