CN103232664B - Acrylic solid plate with characteristics of fire retardation, high strength and high toughness, and preparation method thereof - Google Patents

Acrylic solid plate with characteristics of fire retardation, high strength and high toughness, and preparation method thereof Download PDF

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Publication number
CN103232664B
CN103232664B CN201310132773.0A CN201310132773A CN103232664B CN 103232664 B CN103232664 B CN 103232664B CN 201310132773 A CN201310132773 A CN 201310132773A CN 103232664 B CN103232664 B CN 103232664B
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strength
slurry
parts
powder
fire
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CN201310132773.0A
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CN103232664A (en
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袁新强
蒋鹏
张士勇
岳凯
黄红廷
姜薇
雷普
程如亮
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陕西理工学院
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Abstract

The invention relates to an acrylic solid plate with characteristics of fire retardation, high strength and high toughness, and a preparation method thereof. The preparation method comprises the following steps: under stirring, adopting methyl methacrylate to dissolve a waste organic glass powder material to obtain a slurry A, adopting methyl methacrylate to dissolve a EVA resin to obtain a slurry B, pouring the slurry B into the slurry A, uniformly stirring to obtain a slurry C, sequentially adding a fly ash powder material, a sawdust powder material, a rice bran powder material, a normal coloring pigment, magnesium hydroxide, and dibenzoyl peroxide, uniformly stirring to obtain a high viscosity slurry D, placing the high viscosity slurry D into a steel mold, carrying out cold pressing molding with a hot press, carrying out heating polymerization for 2-3 h at a temperature of 80-90 DEG C, and carrying out cooling, demolding, trimming and burnishing to obtain the acrylic solid plate with characteristics of fire retardation, high strength and high toughness. According to the present invention, the solid waste is adopted to prepare the acrylic solid plate with characteristics of fire retardation, high strength and high toughness, such that environmental pollution is reduced, and the obtained acrylic solid plate has characteristics of high hardness, strong bending strength, strong impact strength, good fire retardation effect and high added value, and can be widely used in the field of construction and home decoration.

Description

A kind of fire-retardant high-strength high-ductility acrylic solid slab and preparation method thereof

Technical field

The invention belongs to composite sheet field, particularly a kind of fire-retardant high-strength high-ductility acrylic solid slab and preparation method thereof.

Background technology

At present, acrylic cupboard board poor toughness on market, frangible, acrylic decoration panel intensity and difference of hardness, easily to scratch, and cost is high.Make the acrylic cupboard board discarded and acrylic decoration panel to regenerate use, reduce the cost of acrylic board, improve the development trend that its toughness, intensity and hardness are acrylic boards.And acrylic cupboard board and acrylic decoration panel also need to reach fire-retardant requirement.

Waste organic glass mainly comes from scrap stock, chip (sheet) etc. in the substandard product in production, the casting in moulding process (road) and mechanical workout, in addition, also has quite a few from the field of circulation, such as, in an automobile scrapped, the quality of synthetic glass will account for about 30% (except tire) of non-metallic part.Waste organic glass, as one of important member in plastic waste, can adopt the modes such as machinery, cracking, incineration to recycle.According to the literature, waste organic glass also dissolves in organic solvent, produces the matrix material such as tackiness agent, acrylic table top, is hydrolyzed to the sodium polymethacrylate etc. that can be used for sewage disposal in the basic conditions.Although waste organic glass thermo-cracking raw materials recovery is general, energy consumption is high.It is low that energy consumption is reclaimed in its dissolving, but solvent toxicity is large, and environmental pollution is serious.

Flyash mainly comes from thermal power generation and the coal fire discharged solid waste of metallurgy, nineteen ninety-five, flyash quantity discharged reached 1.25 hundred million tons, within 2000, be about 1.5 hundred million tons, within 2009, be about 3.75 hundred million tons, within 2010, reach 4.8 hundred million tons, cause huge pressure to the development of the national economy of China and ecotope, flyash pollutes the single solid pollution source having become Largest In China.At present, the application potential of flyash in macromolecular material more and more comes into one's own, and research report mainly utilizes heat-resisting, the stable chemical nature of flyash and inexpensive feature, makes it serve as common fillers role.

The broken end that wood chip mainly comes from sawdust, wood shavings powder and waste leftover material that wood working stays, waste and old wood is pulverized is a kind of of great value renewable resource.Wood chip is the natural composite material be made up of as major ingredient the xylogen of the Mierocrystalline cellulose of 50-55%, the hemicellulose of 15-25% and 20-30%.Wood chip directly as fuel, or can manufacture industrial chemicals or the products such as feed, ethanol, Mierocrystalline cellulose by chemical treatment, or directly produces lignin plastics as filler.

Summary of the invention

The object of the present invention is to provide a kind of fire-retardant high-strength high-ductility acrylic solid slab and preparation method thereof, the method utilizes solid waste for raw material, easy and simple to handle, preparation flow is short, obtained acryl plates hardness is high, bending strength and shock strength is strong, good flame retardation effect, and added value is high.

For achieving the above object, the technical solution used in the present invention is:

A preparation method for fire-retardant high-strength high-ductility acrylic solid slab, comprises the following steps:

1) waste and old organic glass powder and EVA resin is dissolved:

Under stirring, dissolve waste and old organic glass powder with methyl methacrylate and obtain slurry A, and obtain slurry B by methyl methacrylate dissolving EVA resin; Wherein according to the mass fraction, total consumption of methyl methacrylate is 100 parts, and the consumption of waste and old organic glass powder is 70 ~ 90 parts, and the consumption of EVA resin is 5 ~ 10 parts;

2) preparation of mixed slurry:

Being poured into by slurry B in slurry A stirs obtains slurry C; in slurry C, add 20 ~ 50 parts of flyash powders, 10 ~ 20 parts of wood chip powders, 5 ~ 10 parts of rice bran powders, 5 ~ 10 parts of common tinting pigments, 40 ~ 70 parts of magnesium hydroxides and 1.5 ~ 3 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;

3) compression molding, heated polymerizable:

High mucilage material D is placed in punching block, by thermocompressor coldmoulding, then in 80 ~ 90 DEG C of heated polymerizable 2 ~ 3h;

4) cooling, the demoulding, obtain fire-retardant high-strength high-ductility acrylic solid slab.

Waste and old organic glass cleans by described waste and old organic glass powder, dry, broken, pulverize, sieve after obtain, the particle diameter of waste and old organic glass powder is 800 orders with carefully.

Described flyash powder by dry for flyash, sieve after obtain, the particle diameter of flyash powder is 400 orders with carefully.

Described wood chip powder by dry for wood chip, pulverize, sieve after obtain, the particle diameter of wood chip powder is 400 orders with carefully.

Described rice bran powder by dry for rice bran, pulverize, sieve after obtain, the particle diameter of rice bran powder is 400 orders with carefully.

Described common tinting pigment is the mixture of one or more arbitrary proportions in red iron oxide, iron oxide blue, iron oxide green, iron oxide black and titanium dioxide.

The fire-retardant high-strength high-ductility acrylic solid slab prepared, its density is 1.2 ~ 1.4g/cm 3, hardness is 93 ~ 95HD, and bending strength is 120 ~ 180MPa, and shock strength is 20 ~ 35KJ/m 2, fire-retardant rank is HB level.

Relative to prior art, beneficial effect of the present invention is:

The present invention utilizes these four kinds of solid waste of waste and old organic glass powder, flyash powder, wood chip powder and rice bran powder to prepare fire-retardant high-strength high-ductility height acrylic solid slab for raw material, easy and simple to handle, preparation flow is short, raw material is easy to get, production cost is low, also there is raising utilization rate of solid waste simultaneously, reduce the advantage of environmental pollution.In addition, because rice bran is a kind of degradable biological material, coordinate wood chip powder to be filled in waste and old organic glass powder rice bran powder and prepare fire-retardant high-strength high-ductility acrylic solid slab, improve the biological degradability of prepared fire-retardant high-strength high-ductility acrylic solid slab.

The fire-retardant high-strength high-ductility acrylic solid slab that the present invention prepares has the dual processing characteristics of timber and plastics, and its physical and mechanical properties is excellent, smooth surface, and density is 1.2 ~ 1.4g/cm 3, hardness is 93 ~ 95HD, and bending strength is 120 ~ 180MPa, and shock strength is 20 ~ 35KJ/m 2, fire-retardant rank is HB level, and added value is high, can be widely used in building, Decoration Industry.

Embodiment

Below in conjunction with specific embodiment, the present invention is described in further detail.

Embodiment 1

1) waste and old organic glass powder and EVA resin is dissolved:

Under mechanical agitation, dissolve 90 parts of waste and old organic glass powders with 60 parts of methyl methacrylates and obtain slurry A, dissolve 10 parts of EVA resin to slurry B with 40 parts of methyl methacrylates;

Wherein waste and old organic glass powder waste and old organic glass is cleaned, dry, broken, pulverize, obtain after 800 mesh sieves;

2) preparation of mixed slurry:

Being poured into by slurry B in slurry A stirs obtains slurry C, in slurry C, add 50 parts of flyash powders, 20 parts of wood chip powders, 10 parts of rice bran powders, 5 parts of titanium dioxides, 60 parts of magnesium hydroxides and 3 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;

Wherein flyash powder by dry for flyash, cross 400 mesh sieves after obtain, wood chip powder is dry by wood chip, pulverize, obtain after 400 mesh sieves, and rice bran powder is dry by rice bran, pulverize, obtain after 400 mesh sieves;

3) compression molding, heated polymerizable:

High mucilage material D is placed in punching block, by thermocompressor coldmoulding (coldmoulding refers to compression moulding under the condition do not heated), then in 90 DEG C of heated polymerizable 2h;

4) cooling, the demoulding, deburring, polishing obtain fire-retardant high-strength high-ductility acrylic solid slab.

The fire-retardant high-strength high-ductility acrylic solid slab prepared, its smooth surface, density is 1.4g/cm 3, hardness is 95HD, and bending strength is 180MPa, and shock strength is 35KJ/m 2, fire-retardant rank is HB level.

Embodiment 2

1) waste and old organic glass powder and EVA resin is dissolved:

Under mechanical agitation, dissolve 70 parts of waste and old organic glass powders with 50 parts of methyl methacrylates and obtain slurry A, dissolve 5 parts of EVA resin to slurry B with 50 parts of methyl methacrylates;

Wherein waste and old organic glass powder waste and old organic glass is cleaned, dry, broken, pulverize, obtain after 600 mesh sieves;

2) preparation of mixed slurry:

Being poured into by slurry B in slurry A stirs obtains slurry C; in slurry C, add 20 parts of flyash powders, 10 parts of wood chip powders, 5 parts of rice bran powders, 7 parts of iron oxide blues, 40g magnesium hydroxide and 1.5 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;

Wherein flyash powder by dry for flyash, cross 200 mesh sieves after obtain, wood chip powder is dry by wood chip, pulverize, obtain after 300 mesh sieves, and rice bran powder is dry by rice bran, pulverize, obtain after 300 mesh sieves;

3) compression molding, heated polymerizable:

High mucilage material D is placed in punching block, by thermocompressor coldmoulding, then in 80 DEG C of heated polymerizable 3h;

4) cooling, the demoulding, deburring, polishing obtain fire-retardant high-strength high-ductility acrylic solid slab.

The fire-retardant high-strength high-ductility acrylic solid slab prepared, its smooth surface, density is 1.2g/cm 3, hardness is 93HD, and bending strength is 120MPa, and shock strength is 20KJ/m 2, fire-retardant rank is HB level.

Embodiment 3

1) waste and old organic glass powder and EVA resin is dissolved:

Under mechanical agitation, dissolve 80 parts of waste and old organic glass powders with 40 parts of methyl methacrylates and obtain slurry A, dissolve 7 parts of EVA resin to slurry B with 60 parts of methyl methacrylates;

Wherein waste and old organic glass powder waste and old organic glass is cleaned, dry, broken, pulverize, obtain after 200 mesh sieves;

2) preparation of mixed slurry:

Being poured into by slurry B in slurry A stirs obtains slurry C; in slurry C, add 40 parts of flyash powders, 15 parts of wood chip powders, the hybrid pigment of 8 parts of rice bran powders, 10 parts of iron oxide greens and iron oxide blacks, 70g magnesium hydroxide and 2 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;

Wherein flyash powder by dry for flyash, cross 300 mesh sieves after obtain, wood chip powder is dry by wood chip, pulverize, obtain after 200 mesh sieves, and rice bran powder is dry by rice bran, pulverize, obtain after 200 mesh sieves;

3) compression molding, heated polymerizable:

High mucilage material D is placed in punching block, by thermocompressor coldmoulding, then in 85 DEG C of heated polymerizable 2.5h;

4) cooling, the demoulding, deburring, polishing obtain fire-retardant high-strength high-ductility acrylic solid slab.

The fire-retardant high-strength high-ductility acrylic solid slab prepared, its smooth surface, density is 1.35g/cm 3, hardness is 94HD, and bending strength is 150MPa, and shock strength is 28KJ/m 2, fire-retardant rank is HB level.

Embodiment 4

1) waste and old organic glass powder and EVA resin is dissolved:

Under mechanical agitation, dissolve 80 parts of waste and old organic glass powders with 70 parts of methyl methacrylates and obtain slurry A, dissolve 5 parts of EVA resin to slurry B with 30 parts of methyl methacrylates;

Wherein waste and old organic glass powder waste and old organic glass is cleaned, dry, broken, pulverize, obtain after 400 mesh sieves;

2) preparation of mixed slurry:

Being poured into by slurry B in slurry A stirs obtains slurry C; in slurry C, add 30 parts of flyash powders, 10 parts of wood chip powders, 10 parts of rice bran powders, the hybrid pigment of 8 parts of red iron oxides, iron oxide blue, iron oxide green and titanium dioxides, 50g magnesium hydroxide and 2.5 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;

Wherein flyash powder by dry for flyash, cross 300 mesh sieves after obtain, wood chip powder is dry by wood chip, pulverize, obtain after 300 mesh sieves, and rice bran powder is dry by rice bran, pulverize, obtain after 200 mesh sieves;

3) compression molding, heated polymerizable:

High mucilage material D is placed in punching block, by thermocompressor coldmoulding, then in 90 DEG C of heated polymerizable 2h;

4) cooling, the demoulding, deburring, polishing obtain fire-retardant high-strength high-ductility acrylic solid slab.

The fire-retardant high-strength high-ductility acrylic solid slab prepared, its smooth surface, density is 1.38g/cm 3, hardness is 94HD, and bending strength is 160MPa, and shock strength is 30KJ/m 2, fire-retardant rank is HB level.

Claims (7)

1. a preparation method for fire-retardant high-strength high-ductility acrylic solid slab, is characterized in that, comprise the following steps:
1) waste and old organic glass powder and EVA resin is dissolved:
Under stirring, dissolve waste and old organic glass powder with methyl methacrylate and obtain slurry A, and obtain slurry B by methyl methacrylate dissolving EVA resin; Wherein according to the mass fraction, total consumption of methyl methacrylate is 100 parts, and the consumption of waste and old organic glass powder is 70 ~ 90 parts, and the consumption of EVA resin is 5 ~ 10 parts;
2) preparation of mixed slurry:
Being poured into by slurry B in slurry A stirs obtains slurry C; in slurry C, add 20 ~ 50 parts of flyash powders, 10 ~ 20 parts of wood chip powders, 5 ~ 10 parts of rice bran powders, 5 ~ 10 parts of common tinting pigments, 40 ~ 70 parts of magnesium hydroxides and 1.5 ~ 3 parts of dibenzoyl peroxide successively, stir and obtain high mucilage material D;
3) compression molding, heated polymerizable:
High mucilage material D is placed in punching block, by thermocompressor coldmoulding, then in 80 ~ 90 DEG C of heated polymerizable 2 ~ 3h;
4) cooling, the demoulding, obtain fire-retardant high-strength high-ductility acrylic solid slab.
2. the preparation method of fire-retardant high-strength high-ductility acrylic solid slab according to claim 1, it is characterized in that: waste and old organic glass cleans by described waste and old organic glass powder, dry, broken, pulverize, sieve after obtain, the particle diameter of waste and old organic glass powder is 800 orders with carefully.
3. the preparation method of fire-retardant high-strength high-ductility acrylic solid slab according to claim 1, is characterized in that: described flyash powder by dry for flyash, sieve after obtain, the particle diameter of flyash powder is 400 orders with carefully.
4. the preparation method of fire-retardant high-strength high-ductility acrylic solid slab according to claim 1, is characterized in that: described wood chip powder by dry for wood chip, pulverize, sieve after obtain, the particle diameter of wood chip powder is 400 orders with carefully.
5. the preparation method of fire-retardant high-strength high-ductility acrylic solid slab according to claim 1, is characterized in that: described rice bran powder by dry for rice bran, pulverize, sieve after obtain, the particle diameter of rice bran powder is 400 orders with carefully.
6. the preparation method of fire-retardant high-strength high-ductility acrylic solid slab according to claim 1, is characterized in that: described common tinting pigment is the mixture of one or more arbitrary proportions in red iron oxide, iron oxide blue, iron oxide green, iron oxide black and titanium dioxide.
7., according to the fire-retardant high-strength high-ductility acrylic solid slab that the method in claim 1-6 described in any one is prepared, it is characterized in that: its density is 1.2 ~ 1.4g/cm 3, hardness is 93 ~ 95HD, and bending strength is 120 ~ 180MPa, and shock strength is 20 ~ 35KJ/m 2, fire-retardant rank is HB level.
CN201310132773.0A 2013-04-17 2013-04-17 Acrylic solid plate with characteristics of fire retardation, high strength and high toughness, and preparation method thereof CN103232664B (en)

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Publication number Priority date Publication date Assignee Title
CN104608403A (en) * 2014-12-31 2015-05-13 浙江瑞祥有机玻璃有限公司 Acrylic plate production process
CN106751350A (en) * 2016-12-20 2017-05-31 安徽亚克力实业有限公司 A kind of heat-resistant fireproof lucite and preparation method thereof
CN106751351A (en) * 2016-12-20 2017-05-31 安徽亚克力实业有限公司 A kind of fire protection flame retarding modified organic glass and preparation method thereof
CN106751328A (en) * 2016-12-20 2017-05-31 安徽亚克力实业有限公司 A kind of modified organic glass with excellent toughness and preparation method thereof
CN106749943A (en) * 2016-12-20 2017-05-31 安徽亚克力实业有限公司 A kind of wear-resisting lucite and preparation method thereof
CN106589753A (en) * 2016-12-20 2017-04-26 安徽亚克力实业有限公司 Anti-flaming organic glass and preparation method thereof
CN107337889A (en) * 2017-06-26 2017-11-10 雄九(杭州)资本管理有限公司 Light-weight decorative acryl plates and preparation method thereof
CN108530817A (en) * 2018-04-18 2018-09-14 合肥大麦灯箱器材有限公司 A kind of acryl plates and preparation method thereof for advisement exhibition apparatus
CN109021480A (en) * 2018-06-28 2018-12-18 庐山市环绿时代农业科技开发有限公司 A method of acrylic board is produced using acrylic waste material

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CN102190847A (en) * 2011-05-18 2011-09-21 陕西理工学院 Manufacture method for flame-retardant heat-insulation acrylic sheet
CN102295813A (en) * 2011-05-18 2011-12-28 陕西理工学院 Preparation method of antiflaming heat insulation acrylic plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190847A (en) * 2011-05-18 2011-09-21 陕西理工学院 Manufacture method for flame-retardant heat-insulation acrylic sheet
CN102295813A (en) * 2011-05-18 2011-12-28 陕西理工学院 Preparation method of antiflaming heat insulation acrylic plate

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