阅读说明：本技术 一种阻燃木塑墙板的制备方法 (Preparation method of flame-retardant wood-plastic wallboard ) 是由 王俊鹏 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种阻燃木塑墙板的制备方法,本发明属于木塑加工技术领域,制备的墙板木塑可钉、可钻、可切割、粘接,用连接件连接固定,木塑墙板拥有比原木更优良的物理性能,比木材尺寸稳定性好,不会产生裂缝、翘曲、无木材节疤、斜纹,可制成色彩绚丽的各种制品,因此无需定时保养；该木塑墙板具有防火、防水、搞腐蚀、耐潮湿、不被虫蛀、不长真菌、耐酸碱、无害、无污染等优良性能,维护费用低；木塑墙板在使用中有类似木质外观,比原木硬度高,寿命长,韧性好,强度高,节约能源。产品质坚、量轻、保温、表面光滑平整、无污染。(The invention discloses a preparation method of flame-retardant wood-plastic wallboard, which belongs to the technical field of wood-plastic processing, the prepared wood-plastic wallboard can be nailed, drilled, cut, bonded and connected and fixed by a connecting piece, the wood-plastic wallboard has better physical properties than log, has better dimensional stability than wood, does not generate cracks, warps, wood knots and twills, can be made into various products with bright colors, and does not need to be maintained regularly, the wood-plastic wallboard has the excellent properties of fire prevention, water prevention, corrosion resistance, humidity resistance, moth resistance, fungus resistance, acid and alkali resistance, harmlessness, no pollution and the like, the maintenance cost is low, the wood-plastic wallboard has similar wood appearance in use, has higher hardness than the log, long service life, good toughness, high strength, energy conservation, product quality, light weight, heat preservation, smooth and flat surface and no pollution.)

1, preparation method of fire-retardant wood-plastic wallboard, characterized by comprising the following steps:

(1) the method comprises the steps of firstly, carrying out flame surface treatment on a loose board by methane blue flame for 3-6 times, controlling the flame temperature to be 1000-1400 ℃, enabling the flame surface of the board to be smooth and remove burrs to form a treatment layer, enabling the treatment layer to be located on the outermost surface and to have a large number of loose holes and cracks, enabling the duration of each time to be 0.3-1 s, (2) washing, spraying a diluted acid with the mass fraction of 5-7% on the surface of the board treatment layer in a spraying manner, keeping the treatment layer upward, standing for 0.5-1 h, enabling the diluted acid to permeate into the interior of a wood board, (3) wetting, spraying a α -alkenyl sodium sulfonate solution with the mass fraction of 0.5-0.7% on the surface of the board treatment layer in a spraying manner, keeping the treatment layer upward, standing for 0.1-0.5 h, wetting the surface of the wood board, carrying out, drying, carrying out a wood grain soaking, drying, carrying out a wood grain, drying, and drying a wood grain material in a wood grain soaking tank for a wood board after a drying process, wherein the pressure difference is 3-7 MPa, the weight of a wood grain size is 3-7 MPa, a wet wood grain size is that the surface of a wet wood grain is 1.7, a wet wood grain is 10-7, a wood-7 g, a wood-7, soaking tank is 20.7, a wood-7, a wood-7 soaking wood-7 soaking wood-7 soaking wood-7 soaking wood-7 wood-6 soaking wood-7 wood-6 soaking wood-7 soaking wood-7.

2. The method for preparing a flame-retardant wood-plastic wallboard according to claim 1, wherein the diluted acid is acetic acid in mass fraction used in washing.

3. The method for preparing a flame-retardant wood-plastic wallboard according to claim 1, wherein the hydrothermal treatment liquid used in the hydrothermal treatment is sodium bicarbonate solution.

4. The preparation method of the flame-retardant wood-plastic wallboard according to claim 1, wherein after the plate is subjected to the standing step of step (7), a drying step is required, wherein the drying step is as follows: and (3) increasing the temperature in the oven to 45-50 ℃, and drying until the water content of the plate is 3-5%.

5. The method for preparing a fire-retardant wood-plastic wallboard according to claim 1, wherein the impregnation material in the impregnation tank in the step (7) is also subjected to preheating treatment as follows: uniformly mixing the impregnating materials, raising the temperature to 45-50 ℃, aging for 0.5-1 hour, and raising the temperature to 50-55 ℃.

6. The method for preparing a flame-retardant wood-plastic wallboard according to claim 1, wherein the loose board in the step (1) is kinds of boxwood, red pine, pinus sylvestris and birch core board.

7. The preparation method of the flame-retardant wood-plastic wallboard according to claim 1, wherein the vinyl ester resin is tetrabromobisphenol A type vinyl ester resin with viscosity of 350-500 mpa-s, the content of the double bond of the hyperbranched unsaturated polyester is 10-12%, and the acid value is 60-80 mgKOH/g.

Technical Field

The invention belongs to the technical field of wood-plastic processing, and particularly relates to a preparation method of flame-retardant wood-plastic wallboard.

Background

The wood-plastic wallboard is a starting material of milestones in the home decoration industry, has a large indoor use range, can be used in all three-dimensional spaces except the ground, is finished for times, greatly shortens the home decoration time, greatly saves labor cost, completely enables indoor decoration to use harmful materials such as paint and the like to human bodies, enables the home decoration to achieve real environmental protection, is also a preferred product in the home decoration market at present, is mainly used for outer facade decoration and transformation of villas, plants and houses, building roof decoration, indoor wall decoration, suspended ceilings, partition walls and retaining walls, indoor and outdoor ground decoration, grating fences and various garden building shapes and accessories, is mainly used for replacing the original materials such as wood boards, PVC hanging boards and the like, so as to avoid the defects of easy aging, mildew, corrosion, flammability and the like, application is widely applied to plant fiber cement hanging boards, namely natural fiber cement (also called powerful plant fibers), has natural fibers, PVC hanging boards, energy consumption, corrosion, flame resistance, chemical fiber, cement, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic, wood, plastic.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a preparation method of flame-retardant wood-plastic wallboard.

The invention is realized by the following technical scheme:

the preparation method of flame-retardant wood-plastic wallboard comprises the following steps:

(1) the method comprises the steps of firstly, carrying out flame surface treatment on a loose board by methane blue flame for 3-6 times, controlling the flame temperature to be 1000-1400 ℃, enabling the flame surface of the board to be smooth and remove burrs to form a treatment layer, enabling the treatment layer to be located on the outermost surface and to have a large number of loose holes and cracks, enabling the duration of each time to be 0.3-1 s, (2) washing, spraying a diluted acid with the mass fraction of 5-7% on the surface of the board treatment layer in a spraying manner, keeping the treatment layer upward, standing for 0.5-1 h, enabling the diluted acid to permeate into the interior of a wood board, (3) wetting, spraying a α -alkenyl sodium sulfonate solution with the mass fraction of 0.5-0.7% on the surface of the board treatment layer in a spraying manner, keeping the treatment layer upward, standing for 0.1-0.5 h, wetting the surface of the wood board, carrying out, drying, carrying out a wood grain soaking, drying, carrying out a wood grain, drying, and drying a wood grain material in a wood grain soaking tank for a wood board after a drying process, wherein the pressure difference is 3-7 MPa, the weight of a wood grain size is 3-7 MPa, a wet wood grain size is that the surface of a wet wood grain is 1.7, a wet wood grain is 10-7, a wood-7 g, a wood-7, soaking tank is 20.7, a wood-7, a wood-7 soaking wood-7 soaking wood-7 soaking wood-7 soaking wood-7 wood-6 soaking wood-7 wood-6 soaking wood-7 soaking wood-7.

In step , the diluted acid is acetic acid.

In step , the hydrothermal treatment solution used in the hydrothermal treatment is a sodium hydrogencarbonate solution.

, after the plate is subjected to the standing step in the step (7), a drying step is required, wherein the drying step comprises the steps of increasing the temperature in the oven to 45-50 ℃ and drying until the water content of the plate is 3-5%.

, preheating the steeping materials in the steeping tank in the step (7) by uniformly mixing the steeping materials, increasing the temperature to 45-50 ℃, aging for 0.5-1 hour, and increasing the temperature to 50-55 ℃.

, the loose plates in the step (1) are of boxwood, red pine, pinus sylvestris and birch core plates.

, the vinyl ester resin is tetrabromobisphenol A type vinyl ester resin with the viscosity of 350-500 mpa.s, the content of the double bond of the hyperbranched unsaturated polyester is 10-12%, and the acid value is 60-80 mgKOH/g.

The invention has the beneficial effects that:

the invention provides a preparation method of flame-retardant wood-plastic wallboard, which can improve the wood-plastic outer wall material itself by the specific environmental-friendly properties of water resistance, corrosion resistance, flame retardance, wear resistance, strong plasticity and the like, and simultaneously improve the wood-plastic impregnating performance of a wood-plastic impregnating material through a principle of soaking and curing a wood-plastic impregnating material in a high-temperature and high-pressure alkali liquor, improves the wood-plastic impregnating material in a high-efficiency impregnating and curing process, improves the wood-plastic impregnating material in a high-temperature and high-pressure impregnating process, improves the wood-plastic impregnating performance of a wood-plastic impregnating material, improves the wood-plastic impregnating material in a high-pressure impregnating and curing process, improves the wood-plastic impregnating performance of a wood-plastic impregnating material, improves the wood-plastic impregnating material in a high-pressure impregnating and high-pressure impregnating process, improves the wood-plastic impregnating material in a high-corrosion-resistance impregnating and curing process, improves the wood-plastic impregnating material in a high-resistance impregnating and curing process, improves the wood-plastic impregnating material in a high-resistance impregnating and curing process, improves the wood-plastic impregnating material, improves the wood-impregnating material, and the wood-impregnating material by a high-impregnating material impregnating process.

Compared with the prior art, the method has the following advantages:

the wood-plastic wallboard prepared by the invention has the same processing performance as that of log, can be nailed, drilled, cut and bonded, and is connected and fixed by a connecting piece, the prepared wood-plastic wallboard has better physical performance than that of the log, has better dimensional stability than that of the wood, does not generate cracks, warps, wood knots or twills, and can be made into various products with gorgeous colors by adding coloring agent, coating film or composite surface layer, so that the wood-plastic wallboard does not need to be maintained regularly; the wood-plastic wallboard has the excellent performances of fire prevention, water prevention, corrosion resistance, moisture resistance, moth prevention, fungus growth resistance, acid and alkali resistance, harmlessness, no pollution and the like, and is low in maintenance cost; the wood-plastic wallboard has the appearance similar to wood in use, has higher hardness than log, long service life, good toughness, high strength and energy conservation. The product has the advantages of high quality, light weight, heat preservation, smooth and flat surface and no pollution.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.