阅读说明：本技术 一种花纹状清水装饰纤维水泥板及其制备方法和应用 (Decorative fiber cement board with decorative patterns and preparation method and application thereof ) 是由 史林忠 于 2020-07-17 设计创作，主要内容包括：本发明提供了一种花纹状清水装饰纤维水泥板及其制备方法和应用,所述制备方法包括如下步骤：将纤维水泥浆在抄取法或流浆法工艺中制坯,并依次进行加压、保压和养护,然后脱模,得到所述花纹状清水装饰纤维水泥板；其中,所述模具中设置水性脱模剂。本发明提供的纤维水泥板具有分布均匀的花纹,且花纹自然且连续,具有很好的装饰效果。(The invention provides a decorative fiber cement board with decorative patterns, a preparation method and an application thereof, wherein the preparation method comprises the following steps: preparing a blank from fiber cement slurry in a copying process or a pulp flow process, sequentially pressurizing, maintaining pressure and curing, and then demolding to obtain the decorative fiber cement board with the decorative patterns; wherein an aqueous release agent is disposed in the mold. The fiber cement board provided by the invention has uniformly distributed patterns, and the patterns are natural and continuous, so that the fiber cement board has a good decorative effect.)

1. The preparation method of the decorative fiber cement board with the decorative patterns is characterized by comprising the following steps:

Preparing a plate blank from fiber cement paste by a copying method or a pulp flow method, stacking and forming the plate blank by a template at intervals, and sequentially carrying out pressurization or non-pressurization, static curing, demolding, heating curing and cooling curing to obtain the decorative fiber cement plate with the decorative patterns;

wherein an aqueous release agent is provided in the template.

2. The production method according to claim 1, wherein the aqueous release agent is an aqueous emulsified oil release agent.

3. The production method according to claim 1 or 2, wherein the pressure of the pressurization is 200-3000 tons/m²；

Preferably, the resting time is 2-12 h;

preferably, the temperature for heating and maintaining is 35-60 ℃, and the time is 4-16 h;

preferably, the cooling and curing time is 4-24 h;

preferably, the method also comprises the step of carrying out high-temperature steam pressure curing after cooling curing, wherein the temperature is 175-190 ℃, and the time is 8-15 h.

4. The method for preparing the fiber cement slurry according to any one of claims 1 to 3, wherein the fiber cement slurry comprises the following components in parts by weight of 100 parts:

36.7-41 parts of cement, 42-56 parts of quartz sand, 7-9 parts of paper pulp and 0.3-6 parts of pigment;

preferably, the fiber cement slurry comprises 38 parts of cement, 53 parts of quartz sand, 7 parts of pulp and 2 parts of pigment by weight of 100 parts.

5. A method of producing as claimed in any one of claims 1 to 4, characterized in that the degree of beating of the pulp is 35-45 ° SR;

preferably, the pigment is iron black powder or water-soluble carbon black color paste.

6. The preparation method of any one of claims 1-5, wherein the preparation method of the fiber cement paste comprises mixing and beating cement, quartz sand, paper pulp, pigment and water to obtain the fiber cement paste.

7. The method for preparing the decorative fiber cement board of any one of claims 1 to 6, further comprising arranging a transparent protective agent on the outer side of the decorative fiber cement board.

8. The method for preparing according to any one of claims 1 to 7, comprising the steps of:

(1) sequentially pulping and filtering the waste water mud paper bags or the raw wood pulp, and then grinding the waste water mud paper bags or the raw wood pulp by using a disc grinder until the beating degree is 35-45 DEG SR to obtain paper pulp;

(2) putting the cement, the quartz sand, the paper pulp, the pigment and water in a formula ratio into a beater to carry out beating to obtain fiber cement paste;

(3) roll-coating a water-based release agent on a template, preparing a plate blank from fiber cement slurry by a copying method or a pulp flow method, stacking and forming the fiber cement slurry at intervals by the template, and sequentially passing the fiber cement slurry through a press at the temperature of 200-3000 tons/m ²Pressurizing under pressure or not, standing for 2-12h, demolding, curing at 35-60 deg.C for 4-16h, stopping heating, cooling and curing for 4-24 h;

(4) after curing, the mixture is put into an autoclave for high-temperature steam curing at the temperature of 175 ℃ and 190 ℃ for 8 to 15 hours;

(5) and (3) coating a transparent protective agent on the surface after high-temperature steam curing to obtain the decorative fiber cement board with the decorative pattern.

9. The textured clear water decorative fiber cement panel prepared according to the preparation method of any one of claims 1 to 8.

10. The use of the textured clear water decorative fiber cement panel of claim 9 in interior and exterior wall trim panels or floor trim panels.

Technical Field

The invention belongs to the technical field of modified materials, relates to a decorative fiber cement board with decorative patterns, and a preparation method and application thereof, and particularly relates to a decorative fiber cement board with decorative patterns, and a preparation method and application thereof.

Background

The fiber cement board is a board prepared by taking cement as a basic material and an adhesive and taking mineral fiber cement and other fibers as reinforcing materials through the processes of pulping, forming, maintaining and the like, and is applied to the fireproof and flame-retardant performance of cable engineering in various domestic power plants, chemical enterprises and other electric-charge-intensive places. Also is the best fireproof flame-retardant material for indoor decoration fireproof flame-retardant engineering in public places such as superstores, hotels, guesthouses, file halls, closed clothing markets, light industry markets, movie theaters and the like.

The fiber cement board has many superior performances of fire prevention, water prevention, high strength, weather resistance, environmental protection and the like, is very widely applied, and along with application expansion and social development, the surface decoration effect of the board is more diversified and personalized to meet the requirements of users.

CN103790328A discloses a fireproof waterproof environment-friendly floor which is of a multilayer structure and comprises a UV resin layer, wear-resistant paper, melamine paper, fireproof veneers, a first cement board, a multilayer bark pressboard, a second cement board and a polyvinyl ether layer which are arranged in parallel from top to bottom, wherein connecting parts which are matched with each other are arranged on two sides of the multilayer bark pressboard; the environmental protection floor surface that this patent application provided has certain line, has the decoration effect, can be used to the indoor decoration, but because it has multilayer structure, the layering deformation that cracks easily in the application. CN106365521A discloses a granite-like fiber cement board, which comprises the following raw materials in percentage by mass: 1-20% of colored filler, 0-12% of pigment, 15-45% of cement, 20-50% of siliceous material, 0-20% of calcareous material and 4-12% of reinforcing fiber; the fiber cement board that this patent application provided has the decorative pattern and the color effect of granite, has certain decorative effect.

Currently, the variety of fiber cement boards for decoration is small, so that it is desired to develop more types of fiber cement boards with decoration effect.

Disclosure of Invention

The invention aims to provide a decorative fiber cement board with a decorative pattern shape and a preparation method and application thereof, and particularly provides a decorative fiber cement board with a decorative pattern shape and a preparation method and application thereof. The fiber cement board provided by the invention has uniformly distributed patterns, and the patterns are natural and continuous, so that the fiber cement board has a good decorative effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the present invention provides a method for preparing a patterned clear water-decorated fiber cement board (i.e. a patterned clear water-decorated fiber cement board), comprising the following steps:

preparing a plate blank from fiber cement paste by a copying method or a pulp flow method, stacking and forming the plate blank by a template at intervals, and sequentially carrying out pressurization or non-pressurization, static curing, demolding, heating curing, cooling curing and high-pressure autoclaved curing to obtain the decorative fiber cement plate with the decorative pattern;

wherein an aqueous release agent is provided in the template.

In the present invention, the aqueous release agent is an aqueous emulsified oil release agent.

The invention specifically selects the water-based emulsified oil release agent as the release agent for use, so that the surface of the decorative fiber cement board with the pattern-shaped clear water obtained by finally demoulding has uniformly distributed pattern-shaped patterns.

Preferably, the pressure for pressurization is 200-3000 tons/m²E.g. 200 tons/m²300 ton/m²500 ton/m²800 ton/m²1000 ton/m²1200 ton/m²1500 tons/m²1800 ton/m²2000 ton/m²2300 ton/m²2500 ton/m²2800 tons/m²Or 3000 tons/m²。

Preferably, the resting time is 2-12h, such as 2h, 3h, 4h, 5h, 6h, 7h, 8h, 9h, 10h, 11h or 12 h.

In the present invention, the temperature for the heat curing is 35-60 ℃, such as 40 ℃, 45 ℃, 50 ℃, 55 ℃ and the like, and the time is 4-16h, such as 5h, 6h, 7h, 8h, 9h, 10h, 11h, 12h, 13h, 14h, 15h and the like.

Preferably, the cooling curing is performed for 4-24h (e.g., 6h, 8h, 10h, 12h, 14h, 16h, 18h, 20h, 22h, etc.) and then the high-temperature steaming is performed.

Preferably, the method also comprises high-temperature steam pressure curing after cooling curing, wherein the temperature is 175-190 ℃, such as 178, 180, 182, 185 and 188 ℃. The time is 8-15h, such as 9h, 10h, 11h, 12h, 13h, 14 h.

Preferably, the fiber cement slurry comprises the following components in parts by weight of 100 parts:

36.7-41 parts of cement, 42-56 parts of quartz sand, 7-9 parts of paper pulp and 0.3-6 parts of pigment.

Preferably, the fiber cement slurry comprises 38 parts of cement, 53 parts of quartz sand, 7 parts of pulp and 2 parts of pigment by weight of 100 parts.

Preferably, the pulp has a freeness of 35-45 ° SR, such as 36 ° SR, 37 ° SR, 38 ° SR, 39 ° SR, 40 ° SR, 41 ° SR, 42 ° SR, 43 ° SR, 44 ° SR, and the like.

Preferably, the pigment is iron black powder or water-soluble carbon black color paste.

Preferably, the preparation method of the fiber cement slurry comprises the steps of mixing and pulping cement, quartz sand, paper pulp, pigment and water to obtain the fiber cement slurry.

Preferably, the preparation method further comprises the step of arranging a transparent protective agent on the outer side of the decorative pattern clear water fiber cement board.

The layer of transparent protective agent is arranged on the outer side of the decorative fiber cement board with the decorative pattern, so that the wear resistance and the water resistance of the fiber cement board can be further ensured, the decorative pattern can not be damaged in the using process, and furthermore, the attractiveness and the flatness of the decorative fiber cement board with the decorative pattern can be increased.

As a preferred technical scheme of the invention, the preparation method comprises the following steps:

(1) Sequentially pulping and filtering the waste water mud paper bags or the raw wood pulp, and then grinding the waste water mud paper bags or the raw wood pulp by using a disc grinder until the beating degree is 35-45 DEG SR to obtain paper pulp;

(2) putting the cement, the quartz sand, the paper pulp, the pigment and water in a formula ratio into a beater to carry out beating to obtain fiber cement paste;

(3) spraying water-based release agent on a template, preparing a plate blank from fiber cement slurry by a copying method or a pulp flow method, stacking and forming by the template at intervals, and sequentially passing through a press at the temperature of 200-3000 tons/m²Pressurizing under pressure or standing for 2-12h without pressurizing, demolding, maintaining at 35-60 deg.C for 4-16h, stopping heating, cooling and maintaining for 4-24 h;

(4) and after curing, feeding the mixture into an autoclave for high-temperature steam curing at the temperature of 175 ℃ and 190 ℃ for 8-15 h.

(5) And (3) coating a transparent protective agent on the surface after high-temperature steam curing to obtain the decorative fiber cement board with the decorative pattern.

In a second aspect, the invention provides a decorative fiber cement board with decorative patterns, which is prepared according to the preparation method of the first aspect.

The surface of the fiber cement board provided by the invention has natural and continuous patterns with good distribution uniformity, and a good decorative effect, and meanwhile, the arrangement of a layer of protective agent can increase the wear resistance in the using process and prevent the patterns from being worn in the using process.

In a third aspect, the invention provides the application of the decorative fiber cement board with the decorative pattern clear water according to the second aspect in the decorative boards of inner and outer walls or the decorative boards of the ground.

Compared with the prior art, the invention has the following beneficial effects:

(1) the preparation method provided by the invention uses the water-based release agent, so that the finally obtained decorative pattern-shaped clear water decorative fiber cement board has uniformly distributed patterns and a good decorative effect;

(2) the preparation method of the invention adopts a low-temperature maintenance mode with specific temperature, so that the finally obtained decorative pattern on the surface of the decorative fiber cement board with the pattern-shaped clear water decoration has the characteristics of nature and continuity, and the decorative effect is better;

(3) the surface of the fiber cement board provided by the invention has natural and continuous patterns with good distribution uniformity, and a good decorative effect, and meanwhile, the arrangement of a layer of protective agent can increase the wear resistance in the using process and prevent the patterns from being worn in the using process.

Drawings

FIG. 1 is an apparent topography diagram of a textured clear water decorative fiber cement board prepared in example 1 of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.