Multifunctional formaldehyde-free floor and preparation method thereof
A formaldehyde-free floor, multi-functional technology, applied in the direction of chemical instruments and methods, manufacturing tools, flat products, etc., can solve the problems of decay, anti-corrosion, poor anti-mildew effect, peculiar smell, etc., and achieve the effect of improving air quality
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[0015] The embodiment of the present invention provides a method for preparing a multifunctional formaldehyde-free floor, comprising:
[0016] S1. Preparation of fiber substrate
[0017] The fiber substrate in the embodiment of the present application is prepared by using logs as raw materials, and its preparation method can refer to the existing process, which is not limited here, that is, it is not limited to the specific process listed in the embodiment of the present invention. In some embodiments, commercially available fiber substrates may also be used directly without preparation of the fiber substrates.
[0018] The preparation process of the fiber substrate includes: applying formaldehyde-free glue to the fiber raw material, drying to a water content of 5-8%, and then performing pre-pressing and hot-pressing. Formaldehyde-free glue can use isocyanate formaldehyde-free glue and / or lignin formaldehyde-free glue, the application amount of isocyanate formaldehyde-free gl...
Embodiment 1
[0035] This embodiment provides a method for preparing a multifunctional formaldehyde-free floor, including:
[0036] (1) Prepare the base material: peel the logs, peel them with a flaker, wash them with water, and then place them in a power roller screen for grading and screening, then perform high-temperature cooking and grinding with a hot mill to obtain fiber raw materials for strengthening the base material;
[0037] (2) Sizing: apply 25kg / m to the fiber raw material 3 isocyanate formaldehyde-free glue and 60kg / m 3 lignin-free formaldehyde-free glue.
[0038] (3) Drying: Dry the fiber raw material after glue application, and control its moisture content at about 5%.
[0039] (4) Slab pre-pressing and hot pressing: After the above-mentioned wood fiber is screened by a cyclone separator, it is formed into a uniform thickness and quality by a vacuum paving machine; then a continuous roller press is used to pre-press the paved slab After the slab is preliminarily formed, i...
Embodiment 2
[0049] This embodiment provides a method for preparing a multifunctional formaldehyde-free floor, including:
[0050] (1) Prepare the base material: peel the logs, peel them with a flaker, wash them with water, and then place them in a power roller screen for grading and screening, then perform high-temperature cooking and grinding with a hot mill to obtain fiber raw materials for strengthening the base material;
[0051] (2) Sizing: apply 30kg / m to the fiber raw material 3 isocyanate formaldehyde-free glue and 40kg / m 3 lignin-free formaldehyde-free glue.
[0052] (3) Drying: Dry the fiber raw material after gluing, and control its moisture content at about 8%.
[0053] (4) Slab pre-pressing and hot pressing: After the above-mentioned wood fiber is screened by a cyclone separator, it is formed into a uniform thickness and quality by a vacuum paving machine; then a continuous roller press is used to pre-press the paved slab After the slab is preliminarily formed, it enters a...
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