CN103073230A - Artificial marble raw material composition, artificial marble preparation method, and artificial marble - Google Patents
Artificial marble raw material composition, artificial marble preparation method, and artificial marble Download PDFInfo
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Abstract
The invention provides an artificial marble raw material composition comprising the components of, by weight, 100 parts of unsaturated polyester resin, 80-120 parts of wood powder, 40-60 parts of talcum powder, 1-1.5 parts of methyl ethyl ketone peroxide, 0.7-1 part of cobalt naphthenate, 0.5-3 parts of silane coupling agent, and 3-20 parts of a sodium hydroxide or potassium hydroxide solution. The invention also provides a preparation method of the artificial marble and the artificial marble obtained with the method. According to the invention, wood powder and talcum powder are adopted as filling materials; also, the wood powder is subjected to an alkalization treatment by using sodium hydroxide or potassium hydroxide, and a surface treatment by using the silane coupling agent, such that the obtained artificial marble has low density, light weight, good insulation performance, and good mechanical properties.
Description
Technical field
The invention belongs to the new decorative material for building field, relate in particular to a kind of preparation method of feedstock composition and a kind of artificial marble of artificial marble.
Background technology
Artificial marble is a kind of new decorative material for building of developing in recent years, it is made by unsaturated polyester resin and stopping composition, and color is various, has outward appearance and the texture of natural granite, the processability that possesses simultaneously synthetic materials is used widely in the building decoration field.
The preparation method of rostone is mainly in the market: unsaturated polyester resin is mixed stirring evenly with solidifying agent, promotor, filler, then curing molding in mould.Therefore, the selection of filler directly affects heat-proof quality and the various mechanical property of artificial marble.At present, the filler of artificial marble commonly used is mainly calcium carbonate and aluminium hydroxide, and its density ratio is larger, and is very heavy, is unfavorable for transportation and construction, adopts simultaneously heat-proof quality and the mechanical property of the artificial marble that this filler obtains lower.
Summary of the invention
The invention solves that artificial marble of the prior art exists that density is large, heat-proof quality and the relatively poor technical problem of mechanical property.
The invention provides a kind of feedstock composition of artificial marble, described feedstock composition contains following component: the unsaturated polyester resin of 100 weight parts, the wood powder of 80-120 weight part, the talcum powder of 40-60 weight part, 1-1.5 weight part methylethyl ketone peroxide, 0.7-1 the cobalt naphthenate of weight part, sodium hydroxide or the potassium hydroxide solution of the silane coupling agent of 0.5-3 weight part and 3-20 weight part.
The present invention also provides a kind of preparation method of artificial marble, may further comprise the steps:
A) add sodium hydroxide or the potassium hydroxide solution of 3-20 weight part under the whipped state in the wood powder of 80-120 weight part, obtain the alkalinisation treatment wood powder behind the suction filtration;
B) talcum powder of alkalinisation treatment wood powder and 40-60 weight part, the silane coupling agent of 0.5-3 weight part are mixed, oven dry obtains filler mixture;
C) unsaturated polyester resin of 100 weight parts and the cobalt naphthenate of 0.7-1 weight part are mixed, obtain resin compound;
D) then resin compound and filler mixture are mixed, add at last the methylethyl ketone peroxide of 1-1.5 weight part, open and stir, obtain bubble-free material, the material cast molding is obtained described artificial marble.
At last, the invention provides a kind of artificial marble, described artificial marble is obtained by preparation method provided by the invention.
In the raw mix of artificial marble provided by the invention, adopt wood powder and talcum powder as filler, wood powder is through sodium hydroxide or the alkalinisation treatment of potassium hydroxide and the surface treatment of silane coupling agent simultaneously, so that wood powder and unsaturated polyester resin have good consistency, guarantee that resulting artificial marble has good mechanical property; Simultaneously, because wood powder has lower density and high heat-proof quality, therefore the density of resulting artificial marble reduces, and lighter weight is convenient to transportation, and effect of heat insulation is strengthened greatly simultaneously.
Embodiment
The invention provides a kind of feedstock composition of artificial marble, described feedstock composition contains following component: the unsaturated polyester resin of 100 weight parts, the wood powder of 80-120 weight part, the talcum powder of 40-60 weight part, 1-1.5 weight part methylethyl ketone peroxide, 0.7-1 the cobalt naphthenate of weight part, sodium hydroxide or the potassium hydroxide solution of the silane coupling agent of 0.5-3 weight part and 3-20 weight part.
In the raw mix of artificial marble provided by the invention, adopt wood powder and talcum powder as filler, wherein, wood powder passes through first the alkalinisation treatment of sodium hydroxide or potassium hydroxide, then adopt silane coupling agent that it is carried out surface treatment, so that the wood powder after the modification and unsaturated polyester resin have good consistency, guarantee that resulting artificial marble has good mechanical property.Simultaneously, because wood powder has lower density and high heat-proof quality, therefore the density of resulting artificial marble reduces, and lighter weight is convenient to transportation, and effect of heat insulation is strengthened greatly simultaneously.
Particularly, among the present invention, the particle diameter of described wood powder is 200 orders, and described talcous particle diameter is 200 orders, and the concentration of sodium hydroxide or potassium hydroxide solution is 15-20wt%.
Among the present invention, also can add according to actual needs mill base, to satisfy artificial marble for the various requirement of brightness, gloss and color pattern.Under the preferable case, take the unsaturated polyester resin of 100 weight parts as benchmark, also contain the mill base of 0.5-0.7 weight part in the described feedstock composition.
The present invention also provides a kind of preparation method of artificial marble, may further comprise the steps:
A) add sodium hydroxide or the potassium hydroxide solution of 3-20 weight part under the whipped state in the wood powder of 80-120 weight part, obtain the alkalinisation treatment wood powder behind the suction filtration;
B) talcum powder of alkalinisation treatment wood powder and 40-60 weight part, the silane coupling agent of 0.5-3 weight part are mixed, oven dry obtains filler mixture;
C) unsaturated polyester resin of 100 weight parts and the cobalt naphthenate of 0.7-1 weight part are mixed, obtain resin compound;
D) then resin compound and filler mixture are mixed, add at last the methylethyl ketone peroxide of 1-1.5 weight part, open and stir, obtain bubble-free material, the material cast molding is obtained described artificial marble.
Preparation in accordance with the present invention in the steps A, can place whipping appts with wood powder first, then adds sodium hydroxide or potassium hydroxide solution, opens and stirs, and wood powder and sodium hydroxide, hydroxide agent is mixed, thereby finish the alkalinisation treatment process of wood powder.Under the preferable case, churning time is 2-20h.After alkalinisation treatment is finished, mixed system is carried out suction filtration process, remove the water in the mixed system.Among the present invention, suction filtration water-content to the alkalinisation treatment wood powder is lower than 3% and gets final product.
Then, alkalinisation treatment wood powder and talcum powder, silane coupling agent are mixed.Particularly, alkalinisation treatment wood powder and talcum powder that steps A is obtained place homogenizer, then silane coupling agent directly is sprayed on filler (being wood powder and talcous mixture) surface, and carry out stir process, in the stir process process, alkalinisation treatment wood powder and talcum powder are finished surface treatment, so that wood powder and talcum powder all have good consistency with unsaturated polyester resin.Under the preferable case, among the step B, the step that mixes is carried out in homogenizer, and churning time is 10-30min, and mixing speed is 100-120r/min.
After adopting silane coupling agent that filler is finished surface treatment, then oven dry namely obtains filler mixture.Among the present invention, the temperature of oven dry is 100-120 ℃, and drying time is 2-3h.
Preparation in accordance with the present invention after first unsaturated polyester resin and cobalt naphthenate being mixed, is mixed with filler mixture again.Wherein, cobalt naphthenate is promotor, is used for promoting that the curing reaction of unsaturated polyester resin and methylethyl ketone peroxide carries out.Among the present invention, the step that unsaturated polyester mixes with cobalt naphthenate is carried out in reactor.
As previously mentioned, if prepared artificial marble has specific requirement to brightness, gloss and color pattern, then can add mill base.Among the present invention, mill base can directly add in the unsaturated polyester resin, mixes with unsaturated polyester resin, cobalt naphthenate, forms the resin compound that contains mill base.
Then, resin compound and filler mixture are mixed, and add methylethyl ketone peroxide.The solidifying agent that methylethyl ketone peroxide is commonly used for those skilled in the art.For the solidifying agent methylethyl ketone peroxide is fully contacted with unsaturated polyester resin, need to open and stir, and vacuumize, to obtain bubble-free material.Among the present invention, the step that resin compound mixes with filler mixture is carried out in liquid filling machine.Then with being cast in the mould without the bubble material of obtaining in the liquid filling machine, unsaturated polyester resin and solidifying agent methylethyl ketone peroxide are fully reacted, the demoulding after curing is finished namely obtains having identical shaped artificial marble with mould.
At last, the invention provides a kind of artificial marble, described artificial marble is obtained by preparation method provided by the invention.
Artificial marble provided by the invention adopts wood powder and talcum powder as filler, and its density reduces, and lighter weight has good heat-proof quality and mechanical property.As shown in table 1, the mass density of the artificial marble of embodiment of the invention 1-4 preparation is 1.12-1.33 g/cm
3, heat-proof quality is 0.49-0.6mW/ (mK), and modulus in flexure is 7000-8600MPa, and flexural strength is 150-180MPa, and shock strength is 5.0-7.0KJ/m
2, Barcol hardness is 55-65.
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.The raw material that adopts all is commercially available in embodiment and the Comparative Examples.
Embodiment 1
(1) 200 order wood powders of 100 weight parts are put into whipping appts, and add the sodium hydroxide solution (concentration is 17.5wt%) of 10 weight parts, stir 4h, suction filtration falls liquid and obtains the alkalinisation treatment wood powder;
(2) add together above-mentioned alkalinisation treatment wood powder and 40 weight parts, 200 order talcum powder in the homogenizer, and 1 weight part silane coupling agent directly is sprayed on alkalinisation treatment wood powder in the homogenizer and talcum powder surface, open and stir, mixing speed is 100r/min, and churning time is 20min; After finishing, stirring in 120 ℃ of lower oven dry 2h, obtains filler mixture;
(3) 100 weight part unsaturated polyester resins, 0.7 weight part mill base and 1 weight part cobalt naphthenate are placed reactor, mix under the room temperature, obtain resin compound;
(4) filler mixture of step (2) and the resin compound of step (3) are injected liquid filling machine, add 1.5 weight part methylethyl ketone peroxides, open and stir and vacuumize, obtain bubble-free material, material is cast in the mould, the demoulding behind the completion of cure obtains the artificial marble of present embodiment, is designated as S1.
Embodiment 2
Adopt the step identical with embodiment 1 to prepare the artificial marble S2 of present embodiment, difference is:
In the step (1), employing concentration is that the potassium hydroxide solution of 20wt% replaces the sodium hydroxide solution among the embodiment 1, and the consumption of potassium hydroxide solution is 20 weight parts;
In the step (2), talcous consumption is 50 weight parts, and the consumption of silane coupling agent is 1.5 weight parts, and mixing speed is 110r/min, and churning time is 30min; Bake out temperature is 100 ℃, and drying time is 3h.
Embodiment 3
Adopt the step identical with embodiment 1 to prepare the artificial marble S3 of present embodiment, difference is:
In the step (2), talcous consumption is 60 weight parts, and the consumption of silane coupling agent is 2 weight parts, and mixing speed is 120r/min, and churning time is 10min;
In the step (3), the consumption of cobalt naphthenate is 0.7 weight part;
In the step (4), the consumption of methylethyl ketone peroxide is 1 weight part.
Embodiment 4
Adopt the step identical with embodiment 1 to prepare the artificial marble S4 of present embodiment, difference is:
In the step (3), do not add mill base.
Comparative Examples 1
(1) 75 weight parts, 200 order calcium carbonate and 75 weight parts, 200 order aluminium hydroxides are added in the homogenizer, and 1 weight part silane coupling agent directly is sprayed on the talcum powder surface, open and stir, mixing speed is 100r/min, and churning time is 20min; After finishing, stirring in 120 ℃ of lower oven dry 2h, obtains filler mixture;
(2) 100 weight part unsaturated polyester resins, 0.7 weight part mill base and 1 weight part cobalt naphthenate are placed reactor, mix under the room temperature, obtain resin compound;
(3) filler mixture of step (1) and the resin compound of step (2) are injected liquid filling machine, add 1.5 weight part methylethyl ketone peroxides, open and stir and vacuumize, obtain bubble-free material, material is cast in the mould, the demoulding behind the completion of cure obtains the artificial marble of this Comparative Examples, is designated as DS1.
Comparative Examples 2
(1) 40 weight parts, 200 order talcum powder are added in the homogenizer, and 1 weight part silane coupling agent directly is sprayed on the talcum powder surface, open and stir, mixing speed is 100r/min, and churning time is 20min; After finishing, stirring in 120 ℃ of lower oven dry 2h, obtains filler mixture;
(2) 100 weight part unsaturated polyester resins, 0.7 weight part mill base and 1 weight part cobalt naphthenate are placed reactor, mix under the room temperature, obtain resin compound;
(3) filler mixture of step (1) and the resin compound of step (2) are injected liquid filling machine, add 1.5 weight part methylethyl ketone peroxides, open and stir and vacuumize, obtain bubble-free material, material is cast in the mould, the demoulding behind the completion of cure obtains the artificial marble of this Comparative Examples, is designated as DS2.
Comparative Examples 3
(1) 200 order wood powders and 40 weight parts, the 200 order talcum powder with 100 weight parts add in the homogenizer together, open and stir, and mixing speed is 100r/min, and churning time is 20min; After finishing, stirring in 120 ℃ of lower oven dry 2h, obtains filler mixture;
(2) 100 weight part unsaturated polyester resins, 0.7 weight part mill base and 1 weight part cobalt naphthenate are placed reactor, mix under the room temperature, obtain resin compound;
(3) filler mixture of step (1) and the resin compound of step (2) are injected liquid filling machine, add 1.5 weight part methylethyl ketone peroxides, open and stir and vacuumize, obtain bubble-free material, material is cast in the mould, the demoulding behind the completion of cure obtains the artificial marble of this Comparative Examples, is designated as DS3.
Performance test:
Adopt the disclosed method of the building material industry standard JC 908-2002 of the People's Republic of China (PRC) that artificial marble sample S1-S4 and DS1-DS3 are tested, record mass density, heat-proof quality and the mechanical property of each sample.
Test result is as shown in table 1.
Table 1
。
Test result by S1-S3 and DS1 in the upper table 1 can find out that relatively the mass density of the artificial marble sample S1-S3 that embodiment of the invention 1-3 prepares is 1.11-1.33 g/cm
3, obviously light than the artificial marble sample DS1 of Comparative Examples 1, illustrate that artificial marble of the present invention has lower mass density.
Test result by S1-S3 and DS2-DS3 in the upper table 1 relatively can be found out, the heat-proof quality of the artificial marble sample S1-S3 that embodiment of the invention 1-3 prepares is 0.49-0.6mW/ (mK), modulus in flexure is 7000-8600MPa, flexural strength is 150-180MPa, and shock strength is 5.0-7.0KJ/m
2, Barcol hardness is 55-65, has good heat-proof quality and mechanical property.Because wood powder does not pass through modification, it is relatively poor with the consistency of unsaturated polyester resin among the DS3, and therefore the artificial marble sample of formation ftractures easily, and mechanical property does not reach requirement.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the feedstock composition of an artificial marble, it is characterized in that, described feedstock composition contains following component: the unsaturated polyester resin of 100 weight parts, the wood powder of 80-120 weight part, the talcum powder of 40-60 weight part, 1-1.5 the weight part methylethyl ketone peroxide, the cobalt naphthenate of 0.7-1 weight part, sodium hydroxide or the potassium hydroxide solution of the silane coupling agent of 0.5-3 weight part and 3-20 weight part.
2. feedstock composition according to claim 1 is characterized in that, the particle diameter of described wood powder is 200 orders, and described talcous particle diameter is 200 orders, and the concentration of sodium hydroxide or potassium hydroxide solution is 15-20wt%.
3. feedstock composition according to claim 1 and 2 is characterized in that, take the unsaturated polyester resin of 100 weight parts as benchmark, also contains the mill base of 0.5-0.7 weight part in the described feedstock composition.
4. the preparation method of an artificial marble is characterized in that, may further comprise the steps:
A) add sodium hydroxide or the potassium hydroxide solution of 3-20 weight part under the whipped state in the wood powder of 80-120 weight part, obtain the alkalinisation treatment wood powder behind the suction filtration;
B) talcum powder of alkalinisation treatment wood powder and 40-60 weight part, the silane coupling agent of 0.5-3 weight part are mixed, oven dry obtains filler mixture;
C) unsaturated polyester resin of 100 weight parts and the cobalt naphthenate of 0.7-1 weight part are mixed, obtain resin compound;
D) then resin compound and filler mixture are mixed, add at last the methylethyl ketone peroxide of 1-1.5 weight part, open and stir, obtain bubble-free material, the material cast molding is obtained described artificial marble.
5. preparation method according to claim 4 is characterized in that, in the steps A, churning time is 2-20h, and suction filtration water-content to the alkalinisation treatment wood powder is lower than 3%.
6. preparation method according to claim 4 is characterized in that, among the step B, the step that mixes is carried out in homogenizer, and churning time is 10-30min, and mixing speed is 100-120r/min.
7. preparation method according to claim 4 is characterized in that, among the step B, bake out temperature is 100-120 ℃, and drying time is 2-3h.
8. preparation method according to claim 4 is characterized in that, among the step C, the step that unsaturated polyester mixes with cobalt naphthenate is carried out in reactor.
9. preparation method according to claim 8 is characterized in that, among the step C, also comprises the step that adds 0.5-0.7 weight part mill base in the reactor.
10. preparation method according to claim 4 is characterized in that, among the step D, the step that resin compound mixes with filler mixture is carried out in liquid filling machine.
11. an artificial marble is characterized in that, described artificial marble is obtained by each described preparation method of claim 4-10.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327472A (en) * | 2014-10-17 | 2015-02-04 | 河海大学 | Manufacturing method of rock-internal-crack-simulated expansion transparent material |
| CN107628773A (en) * | 2017-09-22 | 2018-01-26 | 江苏昶浩建材有限公司 | A kind of novel artificial marble |
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| CN101613510A (en) * | 2009-07-16 | 2009-12-30 | 浙江大学 | Wood plastic composite and preparation method thereof |
| CN101747639A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Wood plastic composite composition, wood plastic composite and preparation method thereof |
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- 2011-10-26 CN CN2011103288089A patent/CN103073230A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733837A (en) * | 2004-08-03 | 2006-02-15 | 金伟民 | Molding material and its preparation and uses |
| CN101747639A (en) * | 2008-12-12 | 2010-06-23 | 比亚迪股份有限公司 | Wood plastic composite composition, wood plastic composite and preparation method thereof |
| CN101613510A (en) * | 2009-07-16 | 2009-12-30 | 浙江大学 | Wood plastic composite and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104327472A (en) * | 2014-10-17 | 2015-02-04 | 河海大学 | Manufacturing method of rock-internal-crack-simulated expansion transparent material |
| CN107628773A (en) * | 2017-09-22 | 2018-01-26 | 江苏昶浩建材有限公司 | A kind of novel artificial marble |
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Application publication date: 20130501 |