阅读说明：本技术 一种利用废弃木质材料制备零甲醛再生板材的生产方法 (Production method for preparing zero-formaldehyde regenerated board by using waste wood material ) 是由 孙运强 韩志成 于 2018-05-29 设计创作，主要内容包括：本发明公开了一种零甲醛再生板材的制备方法。采用基于废旧塑料颗粒为原料的环保水胶为胶黏剂,有效解决了传统板材中游离甲醛对环境及人体造成的危害,通过将废弃木质材料(如木材加工废弃物、生活家居废弃物及绿化废弃物等)加工后与环保水胶共混,利用塑料颗粒的热塑性,在加热加压条件下制备零甲醛再生板材。本发明的主要特点在于采用基于废旧塑料颗粒制备的环保水胶为胶黏剂,以废弃塑料为原料成本低,以水代替传统有机溶剂制备胶黏剂,降低了对人体和环境的危害,具有广阔的市场前景；以废弃木质材料为基材可用于制造复合板、密度板、纤维板、刨花板、秸秆板等板材,既节约了废弃木质材料等资源,又降低了废旧塑料对环境造成的白色污染。(The invention discloses a preparation method of a zero-formaldehyde regenerated plate. The environment-friendly water gel based on waste plastic particles as raw materials is used as an adhesive, the harm of free formaldehyde to the environment and human bodies in the traditional board is effectively solved, waste wood materials (such as wood processing waste, household waste, greening waste and the like) are processed and then blended with the environment-friendly water gel, and the zero-formaldehyde regenerated board is prepared under the heating and pressurizing conditions by utilizing the thermoplasticity of the plastic particles. The environment-friendly glue is mainly characterized in that the environment-friendly glue prepared based on waste plastic particles is used as an adhesive, waste plastic is used as a raw material, the cost is low, water is used for replacing a traditional organic solvent to prepare the adhesive, the harm to human bodies and the environment is reduced, and the market prospect is wide; the waste wood material is used as the base material to manufacture boards such as composite boards, density boards, fiber boards, shaving boards, straw boards and the like, so that resources such as the waste wood material are saved, and white pollution of waste plastics to the environment is reduced.)

1. A zero-formaldehyde regenerated board is characterized by comprising the following components: waste wood materials and environment-friendly glue.

2. the zero-formaldehyde recycled board as claimed in claim 1, wherein the waste wood material is waste from forest felling and wood processing, waste from furniture replacement packaging wooden case and disposable wood material, waste straw from crops, waste brush wood from pruning trees in urban landscaping, etc.

3. The zero-formaldehyde recycled board as recited in claim 1, wherein the environmentally friendly water gel is based on waste plastic particles mixed with a base emulsion.

4. The environmentally friendly glue of claim 3, wherein the waste plastic is recyclable nylon, polyethylene, polypropylene, polyester or a combination thereof.

5. The environmental protection type glue of claim 1 or 3, wherein the base emulsion is nylon-6, caprolactam, methyl ethyl ketone peroxide, triallyl cyanurate, water-soluble wax, polyethylene, or acid (such as battery water, sulfuric acid, or hydrochloric acid).

6. The environment-friendly water gel according to claims 1 and 3, characterized in that water is used as a solvent to prepare the gel.

7. The zero-formaldehyde recycled board as claimed in claims 1 and 3, wherein the mass fraction of the plastic particles is less than or equal to 10%.

8. The zero-formaldehyde regenerated board as recited in claims 1 and 3, characterized in that the mass fraction of the environment-friendly water gel is 5% -20%.

9. The environment-friendly water gel prepared based on the waste plastics replaces the traditional phenolic aldehyde and urea formaldehyde resin, and solves the problem of environmental pollution caused by the waste plastics.

10. The zero-formaldehyde recycled board of claim 1 can be a recycled board such as a composite board, a density board, a fiber board, a straw board and the like.

The technical field is as follows:

The invention relates to a production method for preparing a zero-formaldehyde regenerated board by using waste wood materials, and also relates to a method for preparing environment-friendly water gel by using waste plastics as raw materials.

Background art:

the wood resource occupies an extremely large position in the economic development of China, is used as an indispensable decorative material in the life of people, and becomes three building base materials which are parallel to reinforcing steel bars and cement. However, the global wood resources are in shortage, and with the coming of policies such as cutting limit and cutting limit, the contradiction between supply and demand of wood is increasingly intensified. A large amount of waste wood materials such as waste furniture, waste wood, waste decorative materials and the like are generated in industrial production and daily life, the quantity is extremely large, how to reasonably utilize the waste wood materials becomes an important target for developing resources of a second forest, the influence on the artificial board industry is great, the raw material cost can be reduced, natural resources can be protected, and the market prospect is wide.

At present, production processes for preparing boards by regenerating waste wood materials are reported, for example, Chinese patents (application numbers: 201310376478.X and 201710022265.5) report that after waste wood materials are processed, the waste wood materials are mixed with adhesives to be molded to prepare corresponding regenerated board products, but the adhesives used in the two processes are traditional urea-formaldehyde resins or phenolic resins, and formaldehyde is released in the production process and the use process, so that the environment and human bodies are damaged.

The invention content is as follows:

The invention aims to solve the technical problem of providing a method for preparing a zero-formaldehyde regenerated board by using an adhesive without formaldehyde release, and the base material of the board is a waste wood material.

1. The invention provides a method for preparing a high-strength zero-formaldehyde regenerated plate. The zero-formaldehyde regenerated sheet material consists of environment-friendly water gel and a sheet material base material, wherein the environment-friendly water gel is plastic particle emulsion, and is prepared by crushing recyclable plastic into superfine particles, mixing the superfine particles with other substances and then adding the mixture into boiling water.

The board substrate material is waste wood material crushed aggregates, and is prepared by smashing, processing and the like of waste of forest felling and wood processing, furniture replacement packaging wooden boxes, disposable wood material waste, crop waste straw and waste brush wood generated by pruning forest trees in urban landscaping.

2. The method comprises the following steps: under the vacuum sealing condition, the recyclable plastic is heated and melted and added into the base emulsion to form the environment-friendly water gel.

The recyclable plastic is nylon, polyethylene, polypropylene, polyester or a combination thereof.

The recyclable plastic in the emulsion is nylon, particularly nylon-6.

The recyclable plastic in the emulsion is recycled plastic.

The base emulsion is composed of nylon-6 and other basic components including caprolactam, methyl ethyl ketone peroxide, triallyl cyanurate, water-soluble wax, polyethylene and acid (such as battery water, sulfuric acid, hydrochloric acid).

The base emulsion prepared by the base component is prepared by heating the base component above the melting temperature of the plastic and sprinkling the plastic powder into the base component.

The preparation of the environment-friendly water gel is to mix heated plastic with substrate emulsion, add the mixture into boiling water, take the emulsion formed in an emulsifying machine as the environment-friendly water gel, and prepare the zero-formaldehyde regenerated board by bonding rubber particles.

The preparation of the zero-formaldehyde regenerated board is characterized in that a board base material is crushed and processed, then mixed with environment-friendly water glue, and subjected to die forming and heating and pressurizing to prepare the zero-formaldehyde regenerated board.

3. The method for preparing the zero-formaldehyde regenerated board by using the board base material comprises the following three steps: (1) preparing a plate base material: crushing the waste wood materials into crushed materials by a crusher; (2) putting the plate base stock and the environment-friendly water cement into a mixing roll for blending; (3) the plastic is molded in a die through a calender or an extruder under the condition of heating and pressurizing, the temperature is reduced to be below the melting point of the plastic, and a densely-piled and tightly-combined plate structure is formed after solidification.

When the die is formed, the use temperature is 140-.

The zero-formaldehyde regenerated board can be a composite board, a density board, a fiber board, a straw board and other regenerated boards.

4. the invention provides a preparation method of a zero-formaldehyde regenerated plate. The zero-formaldehyde regenerated board comprises a board base material and an environment-friendly water gel, wherein the environment-friendly water gel is an emulsion containing plastic particles, and the mass fraction of the plastic particles in the zero-formaldehyde regenerated board is less than or equal to 10%.

The mass fraction of the plastic in the zero-formaldehyde regenerated board is 1-5%.

The mass fraction of the environment-friendly water gel in the zero-formaldehyde regenerated board is 5-20%, and the optimal mass fraction is 6-8%.

the plastic in the environment-friendly water gel is recyclable plastic such as nylon and the like.

The environment-friendly water gel in-emulsion is a mixture of the following substances: (1) methylisothiaimidazolone or methylisothiazolinone; (2) polyethylene, polypropylene, nylon, PVC, expanded polystyrene or acryl; (3) paraffin oil; (4) and (3) water.

The environment-friendly water gel is an emulsion formed by polyethylene, paraffin oil and water.

The environment-friendly water gel is a mixture of methylisothiamidazolidone or methylisothiazolinone, nylon, PVC, foamed polystyrene, polypropylene, acrylic, paraffin oil and water.

The preparation method of the plastic-based environment-friendly water gel comprises the following steps: (1) mixing methylisothiaimidazolone and/or methylisothiazolinone with paraffin oil; (2) melt-adding a plastic to the mixture; (3) and (3) adding the mixture formed in the step (2) into boiling water, forming emulsion in an emulsifying machine, and cooling to room temperature for a certain time to obtain the environment-friendly water gel.

In conclusion, the invention provides a preparation method of a zero-formaldehyde recycled board, which comprises the steps that a base material is a recycled waste wood material, an environment-friendly water gel based on recyclable plastics is adopted, and plastic particles are dispersed in the internal structure of recycled aggregate.

The specific implementation mode is as follows:

The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a process are given, but the scope of the present invention is not limited to the following embodiments.