CN103102710A - Composite building material and production method thereof - Google Patents
Composite building material and production method thereof Download PDFInfo
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- CN103102710A CN103102710A CN2013100641896A CN201310064189A CN103102710A CN 103102710 A CN103102710 A CN 103102710A CN 2013100641896 A CN2013100641896 A CN 2013100641896A CN 201310064189 A CN201310064189 A CN 201310064189A CN 103102710 A CN103102710 A CN 103102710A
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Abstract
The invention relates to the field of building materials, and specifically relates to a composite building material and a production method thereof. The composite building material comprises the following components in parts by weight: 50-70 parts of natural grass, 10-20 parts of calcium carbonate, 10-20 parts of polyvinyl chloride, 5-10 parts of azodicarbonamide and 2-4 parts of calcium stearate. The production method of the composite building material comprises the following steps of: step A: respectively milling the natural grass and the calcium carbonate into powder; step B: uniformly mixing the azodicarbonamide, the calcium stearate, the granular polyvinyl chloride, the milled natural grass and the milled calcium carbonate, heating up to 110-130 DEG C, and cooling to obtain a mixed material; and step C: extruding and shaping the mixed material to obtain the composite building material. Compared with a prior art, the building material prepared by taking the natural grass as a main material and using the polyvinyl chloride, the calcium carbonate and a foaming agent as chemical auxiliaries can be used for avoiding the ecological destruction caused by cutting down trees.
Description
Technical field
The present invention relates to building materials field, be specifically related to composite building material and production method thereof.
Background technology
Composite building material decorate as modern house and construction work in one of the material of construction of a large amount of uses, due to its superior performance and cost cheap widely everybody the favor, and present building materials are to utilize wood chip to be made as main raw material mostly, use wood chip to reduce to a certain extent the felling of trees, but because the market requirement is larger, still can consume a large amount of trees every year, thereby ecotope is damaged such as soil erosion, desertification of land etc.
Summary of the invention
Composite building material provided by the invention and production method thereof provide a kind of composite building material, do not contain wood chip.
In order to achieve the above object, technical scheme of the present invention is achieved in that
Composite building material comprises:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121 and 2-4 part calcium stearate.
Further, also comprise 2-5 part paraffin.
Further, also comprise 2-4 part stablizer.
Further, described stablizer comprises a kind of with what sow at least: tribasic lead sulfate, dibasic lead phosphite, barium stearate, cadmium stearate.
Further, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121,2-4 part calcium stearate, 2-5 part paraffin and 2-4 part barium stearate.
The production method of composite building material comprises the following steps:
Steps A: natural grass thing and calcium carbonate are clayed into power respectively;
Step B: with Cellmic C 121, calcium stearate, granular polyvinyl chloride, and abrasive dust after natural grass thing and calcium carbonate mix, be heated to 110-130 ℃, the cooling mixing raw material that obtains;
Step C: with described mixing raw material extrusion molding typing, obtain composite building material.
Further, in described steps A, described method of claying into power is: the natural grass thing is ground into 80-200 purpose powder, Paris white is broken into 250-350 purpose powder.
Further, in described step B, described cooling method is: be water-cooled to 20-30 ℃.
Further, in described step C, the method for described extrusion molding typing is:
Described mixing raw material is heated to 170-190 ℃, insulation 8-10h, and extrude in mould.
Further, in described step C, also comprise after described extrusion molding typing: vacuum-drying, traction cutting.
Compared with prior art, it is main raw that the present invention gets the intrinsic natural grass thing of nature, and take polyvinyl chloride, calcium carbonate, Cellmic C 121 and calcium stearate as chemical adjuvant, the composite building material of making avoids cutting the ecological damage that causes with trees.
In addition, technical scheme provided by the invention can also reach following effect:
(1) adopt the furniture such as tables and chairs that the present invention makes, bed can not discharge toxic substance, thus harmless.
(2) because calcium carbonate hardness is larger, machinery easy to wear in the course of processing for reducing wear, suitably adds paraffin, as lubricant; Add simultaneously paraffin can also increase the melt fluidity of PVC, adhere to prevent itself and metallic surface, be conducive to forming process.
(3) thermostability of polyvinyl chloride is relatively poor, and temperature reaches 150 ℃ can decomposite hydrogenchloride, and it is darkened, degradation, and stablizer can suppress or in and polyvinyl chloride decompose the hydrogenchloride emit.Stablizer commonly used has lead compound, as tribasic lead sulfate, dibasic lead phosphite; Metal soap is as barium stearate, cadmium stearate etc.; Organo-tin compound.
(4) Cellmic C 121, it is heated and can decomposes gases such as generating nitrogen, carbonic acid gas, thereby play the effect of foaming, can make material internal form evenly less space, thereby reduce the density of material, and then the weight of lightening material, its gas forming amount 210-250mL/g, 195 ℃-200 ℃ of decomposition temperatures.A kind of good whipping agent,
(5) calcium stearate can reduce the decomposition temperature of whipping agent, thereby reduces the difficulty of processing.
(6) can to make mixing raw material be molten state from solid state transformation in heating, to viscous state, finally is converted into the viscous state of homogenizing, thereby makes the structure of product more even.
(7) due to be under vacuum state isolated air make part in drying process easily the material of the chemical transformation such as oxidation better keep original characteristic, also can better protect material by the mode that vacuumizes after injecting inert gas.
Description of drawings
In order to be illustrated more clearly in the specific embodiment of the present invention, the below will do simple the introduction to the accompanying drawing of required use in embodiment, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The production method schema of the composite building material that Fig. 1 provides for embodiments of the invention one.
The production method schema of the composite building material that Fig. 2 provides for embodiments of the invention three.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer; the below will carry out clear, complete description to technical scheme of the present invention; based on the specific embodiment in the present invention; those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the present invention protects.
Embodiment one
Embodiments of the invention one provide a kind of composite building material and production method thereof.
Composite building material comprises: by weight, and 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121 and 2-4 part calcium stearate.
It is main raw that above-mentioned composite building material is got the intrinsic natural grass thing of nature, and take polyvinyl chloride, calcium carbonate and whipping agent as chemical adjuvant, the building materials of making avoid cutting the ecological damage that causes with trees.Significantly, the natural grass thing is the main filling effect that rises in formula, it is base material, it can adopt the careless thing of many types, for example straw, rice grass, corn stalk, sugarcane bar, the cauline leaf of potato, rape, cotton etc., and other weeds, as seen these building materials can be recycled the positions such as root, stem and leaf of some farm crop, and the weeds in the field, thereby turn waste into wealth.And the acting as of other three kinds of chemical reagent:
Calcium carbonate: this can fill hole in organic molecule carbonic acid, and because calcium carbonate hardness is large, thereby after calcium carbonate filled, the rigidity of material and hardness can increase.
Polyvinyl chloride (PVC): polyvinyl chloride is a kind of thermoplastic macromolecule resin, and its Intermolecular Forces is large, and tensile strength is in the 60MPa left and right, and shock strength is 5-10KJ/m
2, thereby have mechanical property preferably, and the building materials of making have mechanical property preferably, and polyvinyl chloride is metamict crystals simultaneously, thereby can play skeleton function in building materials.In addition, contain the chlorine atom in polyvinyl chloride, have good fire retardation, polyvinyl chloride also has corrosion-resistant and heat insulation characteristic.
Cellmic C 121 (AC): it is heated and can decomposes gases such as generating nitrogen, carbonic acid gas, thereby play the effect of foaming, its gas forming amount 210-250mL/g, 195 ℃-200 ℃ of decomposition temperatures are a kind of good whipping agents, it can make material internal form evenly less space, thereby reduces the density of material.
The furniture building materials such as the tables and chairs that employing the present embodiment is made, bed can not discharge toxic substance, thereby harmless.
This shows, the present embodiment is better than existing building materials in many-side: environmental protection, toxicological harmless, density is little, hardness is large, fire-retardant, heat insulation, corrosion-resistant.
In addition, different materials in above-mentioned formula can adopt the arbitrary proportion in its ratio range: the natural grass thing can be selected 50 parts, 60 parts, 70 parts etc., calcium carbonate can be selected 10 parts, 15 parts, 20 parts etc., polyvinyl chloride can be selected 10 parts, 15 parts, 20 parts etc., Cellmic C 121 can be selected 5 parts, 8 parts, 10 parts etc., and calcium stearate can be selected 2 parts, 3 parts, 4 parts etc.
The production method of the composite building material that the present embodiment provides as shown in Figure 1, comprises the following steps:
Step 101: natural grass thing and calcium carbonate are clayed into power;
Step 102: with Cellmic C 121, calcium stearate, granular polyvinyl chloride, and abrasive dust after natural grass thing and calcium carbonate mix, be heated to 110-130 ℃, the cooling mixing raw material that obtains;
Step 103: with described mixing raw material extrusion molding typing, obtain composite building material.
In above-mentioned steps 102, it is more even that heating can make raw material be mixed to get.
Embodiment two
Embodiments of the invention two provide another kind of composite building material, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121,2-4 part calcium stearate and 2-5 part paraffin.
Because calcium carbonate hardness is larger, machinery easy to wear in the course of processing for reducing wear, suitably adds paraffin, as lubricant; Add simultaneously paraffin can also increase the melt fluidity of PVC, adhere to prevent itself and metallic surface, be conducive to forming process.
Wherein Cellmic C 121 is whipping agent, and it is heated and can decomposes gases such as generating nitrogen, carbonic acid gas, thereby plays the effect of foaming, and its gas forming amount 210-250mL/g is a kind of good whipping agent, 195 ℃-200 ℃ of its decomposition temperatures.
As seen, embodiment two compares one, more easily processing.
Wherein the natural grass thing can be selected 50 parts, 60 parts, 70 parts etc., calcium carbonate can be selected 10 parts, 15 parts, 20 parts etc., polyvinyl chloride can be selected 10 parts, 15 parts, 20 parts etc., Cellmic C 121 can be selected 5 parts, 8 parts, 10 parts etc., calcium stearate can be selected 2 parts, 3 parts, 4 parts etc., and paraffin can be selected 2 parts, 4 parts, 5 parts etc.
Embodiment three
Embodiments of the invention three provide another kind of composite building material, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121,2-5 part paraffin, 2-4 part stablizer, and 2-4 part calcium stearate.
Above-mentioned formula improves in the following areas:
Stable: the PVC thermostability is relatively poor, and temperature reaches 150 ℃ can decomposite hydrogenchloride, and it is darkened, degradation, the hydrogenchloride of emitting due to decomposition when inhibition or neutralization heat add man-hour or use.For example stablizer commonly used has lead compound: tribasic lead sulfate, dibasic lead phosphite; Metal soap: barium stearate, cadmium stearate etc.; Organo-tin compound.Can as required, select suitable stablizer.
Blowing temperature is low: calcium stearate can reduce the decomposition temperature of whipping agent, thereby reduces the difficulty of processing.
Equally, the material in the present embodiment can adopt any ratio in its scope.
As seen, compare with embodiment one, composite building material provided by the invention is more stable, more easily processing.
In addition, the natural grass thing can be selected 50 parts, 60 parts, 70 parts etc., calcium carbonate can be selected 10 parts, 15 parts, 20 parts etc., polyvinyl chloride can be selected 10 parts, 15 parts, 20 parts etc., Cellmic C 121 can select 5 parts, 8 parts, 10 parts etc., paraffin can select 2 parts, 4 parts, 5 parts etc., stablizer can be selected 2 parts, 3 parts, 4 parts etc., and calcium stearate can be selected 2 parts, 3 parts, 4 parts etc.
The present embodiment also provides the preparation method of above-mentioned building materials, as shown in Figure 2, comprises the following steps:
Step 201: natural grass thing grinding is become 80-200 purpose powder, calcium carbonate is worn into 250-350 purpose powder;
Step 202: with granular polyvinyl chloride, Cellmic C 121, paraffin, stablizer, calcium stearate, and abrasive dust after natural grass thing and calcium carbonate mix, be heated to 110-130 ℃, be water-cooled to 20-30 ℃, obtain mixing raw material;
Step 203: described mixing raw material is heated to 170-190 ℃, insulation 8-10h, and extrude in mould, vacuum-drying, the traction cutting obtains composite building material.
In above-mentioned steps 202, also can adopt alternate manner cooling, cold etc. such as electricity, preferably adopt water-cooled, the simple and not consuming electric power of this mode.
It is molten state from solid state transformation that heating in above-mentioned steps 203 and extrusion can make mixing raw material, to viscous state, finally is converted into the viscous state of homogenizing, thereby makes the structure of product more even.
And due to be under vacuum state isolated air make part in drying process easily the material of the chemical transformation such as oxidation better keep original characteristic; also can better protect material by the mode that vacuumizes after injecting inert gas, also can adopt other vacuum-drying mode.
As seen, the composite building material structure that adopts present method to produce is more even, more stable; More attractive in appearance.
Embodiments of the invention four also provide preferred formula, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121,2-5 part paraffin, 2-4 part barium stearate, and 2-4 part calcium stearate.
Wherein the natural grass thing can be selected 50 parts, 60 parts, 70 parts etc., calcium carbonate can be selected 10 parts, 15 parts, 20 parts etc., polyvinyl chloride can be selected 10 parts, 15 parts, 20 parts etc., Cellmic C 121 can select 5 parts, 8 parts, 10 parts etc., paraffin can select 2 parts, 4 parts, 5 parts etc., barium stearate can be selected 2 parts, 3 parts, 4 parts etc., and calcium stearate can be selected 2 parts, 3 parts, 4 parts etc.
It should be noted that at last: above specific embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned specific embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned embodiments is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make essence disengaging each embodiment of the present invention of appropriate technical solution and the spirit and scope of specific embodiment technical scheme.
Claims (10)
1. composite building material, is characterized in that, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121 and 2-4 part calcium stearate.
2. composite building material as claimed in claim 1, is characterized in that, also comprises 2-5 part paraffin.
3. composite building material as claimed in claim 2, is characterized in that, also comprises 2-4 part stablizer.
4. composite building material as claimed in claim 3, is characterized in that, described stablizer comprises a kind of with what sow at least: tribasic lead sulfate, dibasic lead phosphite, barium stearate, cadmium stearate.
5. composite building material as claimed in claim 4, is characterized in that, comprising:
By weight, 50-70 part natural grass thing, 10-20 part calcium carbonate, 10-20 part polyvinyl chloride, 5-10 part Cellmic C 121,2-4 part calcium stearate, 2-5 part paraffin and 2-4 part barium stearate.
6. the production method of composite building material claimed in claim 1, is characterized in that, comprises the following steps:
Steps A: natural grass thing and calcium carbonate are clayed into power respectively;
Step B: with Cellmic C 121, calcium stearate, granular polyvinyl chloride, and abrasive dust after natural grass thing and calcium carbonate mix, be heated to 110-130 ℃, the cooling mixing raw material that obtains;
Step C: with described mixing raw material extrusion molding typing, obtain composite building material.
7. the production method of composite building material as claimed in claim 6, is characterized in that, in described steps A, described method of claying into power is: the natural grass thing is ground into 80-200 purpose powder, Paris white is broken into 250-350 purpose powder.
8. the production method of composite building material as claimed in claim 7, is characterized in that, in described step B, described cooling method is: be water-cooled to 20-30 ℃.
9. the production method of composite building material as claimed in claim 8, is characterized in that, in described step C, the method for described extrusion molding typing is:
Described mixing raw material is heated to 170-190 ℃, insulation 8-10h, and extrude in mould.
10. the production method of composite building material as claimed in claim 9, is characterized in that, in described step C, also comprises after described extrusion molding typing: vacuum-drying, traction cutting.
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| CN201310064189.6A CN103102710B (en) | 2013-02-28 | 2013-02-28 | Composite building material and production method thereof |
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| CN103102710A true CN103102710A (en) | 2013-05-15 |
| CN103102710B CN103102710B (en) | 2015-09-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130516A (en) * | 2014-07-07 | 2014-11-05 | 北京森源华诚科技发展有限公司 | Natural grass-fragrant reduced-state multifunctional wall paper and preparation thereof |
| CN111890649A (en) * | 2020-08-03 | 2020-11-06 | 明德新材料科技(浙江)股份有限公司 | Antique outdoor building material processing technology |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751195A (en) * | 2016-12-14 | 2017-05-31 | 安徽圣源橡塑科技有限公司 | A kind of PVC ecological floors |
| CN107266118A (en) * | 2017-05-24 | 2017-10-20 | 钱小平 | A kind of high-strength light composite building material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101649559A (en) * | 2009-08-31 | 2010-02-17 | 四川大学 | Energy-saving and emission-reduction method for production line of PVC artificial leather |
| CN101845181A (en) * | 2010-05-31 | 2010-09-29 | 涂孝志 | Formula of straw compound real wood imitated wires |
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2013
- 2013-02-28 CN CN201310064189.6A patent/CN103102710B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649559A (en) * | 2009-08-31 | 2010-02-17 | 四川大学 | Energy-saving and emission-reduction method for production line of PVC artificial leather |
| CN101845181A (en) * | 2010-05-31 | 2010-09-29 | 涂孝志 | Formula of straw compound real wood imitated wires |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104130516A (en) * | 2014-07-07 | 2014-11-05 | 北京森源华诚科技发展有限公司 | Natural grass-fragrant reduced-state multifunctional wall paper and preparation thereof |
| CN111890649A (en) * | 2020-08-03 | 2020-11-06 | 明德新材料科技(浙江)股份有限公司 | Antique outdoor building material processing technology |
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| CN103102710B (en) | 2015-09-16 |
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