阅读说明：本技术 一种无水泥基人造石及其制备方法 (Cement-free artificial stone and preparation method thereof ) 是由 李阳阳 陈曦 郑化安 刘杰 潘童 刘伟刚 路萍 魏涛 巨浩波 陈永振 高建平 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种无水泥基人造石及其制备方法,无水泥基人造石原料组成包括板岩颗粒废料：重量百分比为10%-40%；板岩粉状废料：重量百分比为30%-70%；颜料：重量百分比为1%-3%；氧化钙质胶凝材料：重量百分比为10%-40%；棉纤维：重量百分比为1%-3%以及由水玻璃、硅钙粉、SiO<Sub>2</Sub>超微粉、聚丙烯酰胺组成的增强剂：重量百分比为1%-3%。其制备方法包括以下步骤：(1)备样,(2)疏解,(3)喷色,(4)制备混合料,(5)压制成型,(6)脱模,(7)蒸养,(8)后期。本发明解决了目前一些不饱合聚酯板材存在强度差,易开裂,在生产中有一定的VOC释放出来,水泥基板材存在养护周期长、前期强度低的技术问题。(The invention discloses a cement-free artificial stone and a preparation method thereof, wherein the cement-free artificial stone comprises slate particle waste materials: the weight percentage is 10% -40%; slate powdery waste: 30-70% by weight; pigment: 1-3% by weight; calcia cement: the weight percentage is 10% -40%; cotton fiber: 1-3 percent of water glass, calcium silicate powder and SiO 2 Reinforcing agent consisting of superfine powder and polyacrylamide: the weight percentage is 1% -3%. The preparation method comprises the following steps: (1) sample preparation, (2) fluffing, (3) color spraying, (4) mixture preparation, (5) compression molding, (6) demolding, (7) steam curing, and (8) later stage. The invention solves the technical problems that some existing unsaturated polyester plates are poor in strength and easy to crack, a certain amount of VOC is released in production, and cement base plates are long in maintenance period and low in early strength.)

1. The cement-free artificial stone comprises the following raw materials of slate particle waste: the weight percentage is 10% -40%; slate powdery waste: 30-70% by weight; pigment: 1-3% by weight; calcia cement: the weight percentage is 10% -40%; cotton fiber: 1-3% by weight; the cement-free base artificial stone is characterized by also comprising a reinforcing agent: 1-3 percent of water glass, calcium silicate powder and SiO ₂Ultra fine powder and polyacrylamide, water glass: silicon calcium powder: SiO 2 ₂Ultra-fine powder: the weight ratio of polyacrylamide is equal to 2.1: 3.3: 1: 1.4.

2. the cement-free artificial stone according to claim 1, wherein the particle waste has a particle size of 20mm to 50 mm.

3. The cement-free artificial stone according to claim 1, wherein the particle size of the powdery waste is 0.45mm or less.

4. A method for preparing the cement-free artificial stone according to any one of claims 1 to 3, characterized by comprising the steps of:

the method comprises the following steps: preparing a sample, namely crushing, screening and weighing the rock waste sample;

step two: defibering, namely dispersing fibers by a defibering machine for 10 min;

step three: spraying color, blending according to the required color, and then spraying on a die;

step four: preparing a mixture, pouring all the raw materials into a stirrer according to the weight percentage, and stirring for 30 minutes at a rotating speed of 50 r/min;

step five: pressing and forming, namely pouring the uniformly stirred semi-slurry into a mold with a sprayed color, filling the whole mold with the semi-slurry to ensure that the surface of the mold is smooth, and performing pressing and forming under the forming pressure of 15MPa and the pressure of 30S;

step six: demoulding, namely demoulding the pressed artificial stone for simple repair;

step seven: steam curing, namely putting the prepared artificial stone rough blank into a steam curing kettle, wherein the steam curing temperature is 180 ℃, and the steam curing time is 8-10 h;

step eight: and in the later stage, the steamed artificial stone is repaired and polished, and the production of the artificial stone is completed.

Technical Field

The invention belongs to the technical field of artificial stones, and particularly relates to a cement-free artificial stone.

Background

Engineered stone is typically referred to as engineered stone solid facestock, engineered quartz stone, engineered stone granite, and the like. The artificial stone has different types, and compared with traditional building materials such as stainless steel, ceramics and the like, the artificial stone has various functions, rich color and wider application range. The artificial stone has no toxicity, no radioactivity, flame retardance, no oil adhesion, antibiosis, mildew resistance, wear resistance, impact resistance and easy maintenance.

At present, unsaturated polyester or cement is mostly adopted as a bonding material for artificial stones produced in the building decoration industry, unsaturated polyester plates have the characteristics of poor strength and easiness in cracking, and certain VOC is released in production, so that the health of human bodies is threatened, and the environment is polluted; the cement-based plate has the defects of overlong curing period, low early strength and large curing time in the production process.

All of the present invention proposes a cement-free artificial stone having high strength and simple production and maintenance, so as to solve the problems set forth above.

Disclosure of Invention

The invention provides an inorganic artificial stone with high strength and simple production and maintenance, and aims to solve the problems that some unsaturated polyester plates have poor strength and are easy to crack, a certain amount of VOC is released in production, and cement base plates have long maintenance period and low early strength.

In order to achieve the purpose, the invention provides the following technical scheme: an artificial stone comprises slate particle waste, slate powder waste, pigment, calcium oxide cementing material, cotton fiber, reinforcing agent and water; the weight percentages of the slate particle waste, the slate powdery waste, the pigment, the calcium oxide cementing material, the cotton fiber and the reinforcing agent are as follows:

slate particle waste: 10% -40%;

slate powdery waste: 30% -70%;

pigment: 1% -3%;

calcia cement: 10% -40%;

cotton fiber: 1% -3%;

reinforcing agent: 1% -3%;

the amount of water is 20-40% of the total mass of the raw materials.

The raw materials of the reinforcing agent comprise water glass, calcium silicate powder and SiO ₂Ultra fine powder and polyacrylamide, water glass: silicon calcium powder: SiO 2 ₂Ultra-fine powder: the polyacrylamide comprises the following components in percentage by weight: 2.1: 3.3: 1: 1.4.

preferably, the particle size of the particle waste is 20mm-50 mm.

Preferably, the particle size of the powdery waste is less than or equal to 0.45 mm.

The method for preparing the cement-free based artificial stone includes the following steps:

the method comprises the following steps: preparing a sample, namely crushing, screening and weighing the rock waste sample;

step two: defibering, namely dispersing fibers by a defibering machine for 10 min;

step three: spraying color, blending according to the required color, and then spraying on a die;

step four: preparing a mixture, pouring all the raw materials into a stirrer according to the weight percentage, and stirring for 30 minutes at a rotating speed of 50 r/min;

step five: pressing and forming, namely pouring the uniformly stirred semi-slurry into a mold with a sprayed color, filling the whole mold with the semi-slurry to ensure that the surface of the mold is smooth, and performing pressing and forming under the forming pressure of 15MPa and the pressure of 30S;

step six: demoulding, namely demoulding the pressed artificial stone for simple repair;

step seven: steam curing, namely putting the prepared artificial stone rough blank into a steam curing kettle, wherein the steam curing temperature is 180 ℃, and the steam curing time is 8-10 h;

step eight: and in the later stage, the steamed artificial stone is repaired and polished, and the production of the artificial stone is completed.

Detailed Description