ZA200101007B - Method for manufacturing plastic-substitute goods by using natural materials. - Google Patents
Method for manufacturing plastic-substitute goods by using natural materials. Download PDFInfo
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- ZA200101007B ZA200101007B ZA200101007A ZA200101007A ZA200101007B ZA 200101007 B ZA200101007 B ZA 200101007B ZA 200101007 A ZA200101007 A ZA 200101007A ZA 200101007 A ZA200101007 A ZA 200101007A ZA 200101007 B ZA200101007 B ZA 200101007B
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- South Africa
- Prior art keywords
- glue
- mixture
- plant stems
- drying
- mixing
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 40
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 13
- 239000000203 mixture Substances 0.000 claims description 82
- 239000003292 glue Substances 0.000 claims description 68
- 238000001035 drying Methods 0.000 claims description 44
- 229920002472 Starch Polymers 0.000 claims description 36
- 239000008107 starch Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 241000209094 Oryza Species 0.000 claims description 35
- 235000019698 starch Nutrition 0.000 claims description 30
- 238000000465 moulding Methods 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 22
- 235000007164 Oryza sativa Nutrition 0.000 claims description 19
- 235000009566 rice Nutrition 0.000 claims description 19
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 18
- 241000209140 Triticum Species 0.000 claims description 18
- 239000010903 husk Substances 0.000 claims description 18
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 17
- 241001057636 Dracaena deremensis Species 0.000 claims description 17
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 17
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 7
- 239000000047 product Substances 0.000 description 17
- 238000013019 agitation Methods 0.000 description 15
- 239000006227 byproduct Substances 0.000 description 13
- 239000000025 natural resin Substances 0.000 description 9
- 230000032683 aging Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229920002261 Corn starch Polymers 0.000 description 5
- 239000008120 corn starch Substances 0.000 description 5
- 229920001592 potato starch Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 239000000227 bioadhesive Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 240000006705 Pistacia terebinthus Species 0.000 description 1
- 235000008075 Pistacia terebinthus Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- -1 and therefore Natural products 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00346—Heating or cooling arrangements
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
N t :
MANUFACTURING METHOD OF SUBSTITUTE GOODS FOR PLASTIC WHICH
MADE FROM NATURAL MATERIALS
The present invention relates to a method for manufacturing plastic- substitute goods by using natural materials. Particularly, the invention relates to a method for manufacturing plastic-substitute goods by using natural materials, in which agricultural byproducts and wood byproducts such as rice husks, rice plant stems, corn plant stems, bean plant stems, wheat plant stems, saw dust and the like are crushed into a particular size, then the crushed particles are mixed with natural adhesives (such as corn starch, potato starch and the like), and are coated with rosin or natural resins, and then a molding is carried out by applying a pressure in a molding machine, thereby manufacturing the plastic-substitute goods.
:
There are various everyday goods which are made of plastic materials.
Further, their shape and use are diversified, and have been continuously developed. However, the plastic materials are highly combustible, and therefore, in case of a fire accident, they are speedily burned off without allowing the fire fighting time. Further, when they are burned, toxic gases are generated to sacrifice human lives. When they are discarded, they are not decomposed, with the result that the natural environment is contaminated.
The present invention is intended to overcome the above described disadvantages of the conventional practice.
Therefore it is an object of the present invention to provide a method 40 for manufacturing plastic-substitute goods by using natural materials, in which one or more materials are selected from among agricultural byproducts and wood byproducts such as rice husks, rice plant stems, corn plant stems, bean plant stems, wheat plant stems, saw dust and the like, then they are washed, sorted and dried, then they are mixed with natural adhesives such as corn starch, potato starch and the like, then they are dried and crushed, then they are mixed with a coating material such as rosin or a natural resin, and then, they are press—molded in a molding machine.
The agricultural byproducts and the wood byproducts can be selectively used, and the rice husks, rice plant stems and other plant byproducts can be mixedly used.
As the natural adhesive, there can be used corn starch and potato starch, but other cereal powder may be used to reap the same effect. Corn starch and potato starch are preferred because they are cheap. The substitute materials are crude in their touching sense and in the color, and therefore, they can be dyed.
Rosin is produced by removing terebinth oil from pine pitch, and therefore, it is combustion-resistant. Further, it is strengthened upon heating it, and is moisture-resistant. ) Further, when molding the product of the present invention, the product can be easily separated from the molding die owing to the presence of rosin, and therefore, rosin is an important element in the present invention. In the present invention, the molding is carried out at a temperature of 100 - 350 degrees C, the internal pressure is preferably 5 Kg/Cn?, and the molding speed is 30 - 80 seconds per product.
The agricultural byproducts, the wood byproducts and other plant byproducts are mostly waste materials, and therefore, can be easily obtained.
However, their availabilities are affected by seasons, and therefore, the most readily available materials in the season can be selectively used.
The above object and other advantages of the present invention will become more apparent by describing in detail the preferred embodiment of the present invention with reference to the attached drawing in which : 40 FIG. 1 illustrates the constitution of the manufacturing process according to the present invention.
The composition of the material of the present invention includes: one or more materials are selected from among agricultural byproducts such as rice husks, rice plant stems, corn plant stems, bean plant stems, wheat plant stems and the like, or wood byproducts such as saw dust and the like; natural adhesives such as corn starch, potato starch and the like; and a coating material such as rosin, and natural resins and the like.
The process for manufacturing the plastic-substitute goods by using natural materials according to the present invention includes: a material washing step; a washed material drying step; a step of dipping the dried materials into a glue; a step of drying the materials after the dipping into the glue; a step of crushing the dried materials; a step of mixing the crushed particles with a coating material; and a step of molding the mixed materials.
The chemical compositions of the materials of the present invention will be analyzed in detail below.
The patent application filed by present applicant on June 18, 1999 and entitled "FOOD CONTAINER MADE OF NATURAL MATERIAL" was analyzed by the Korea
Institute of Science and Technology as to its chemical composition. The chemical composition of the material of the present invention is similar to that of the above cited patent application.
Therefore, the data which was prepared by the Korea Institute of Science and Technology will be referred to.
Tables 1 and 2 analyze the ingredient materials which constitute the container made of rice husks; and analyze the substances which are generated when burning the container.
<Experiment 1>
Table 1. Analysis of the materials constituting the container
Test Mass
Piece S102 Decrease Pb Cd As Hg Cu at heating
Material 0.0005 | 0.00005 [ 0.0005 | 0.000005 10.8 88.3
Test or less or lass or less or less
Oa [WET AAS [AAS [top | AAS [RAS |]
Unit | wt% [| we% | wi% | wi% | we% | wi% | wih] . KmnO4 Formal- _ ] Fenitro- . 15 0.047 0.7 0.001 0.001 0.005 0.001 0.001 or less or less or less orless | orless
In the above table, the heavy metals which are harmful to the human body are classified. Only silicon dioxide is 0.8 wt%, lead (Pb) is 0.0005 wt% or less, cadmium (Cd) is 0.00005 wt% or less, arsenic (As) is 0.0005 wt% or less, mercury (Hg) is 0.000005 wt% or less, copper (Cu) is 0.0011 or less. Thus the heavy metals are less than the standard values, and therefore, they cannot give . toxicity to the human body. Silicon dioxide corresponds to the quartz sand, and therefore, it is not harmful to the human body at all probability.
Therefore, the ingredient materials which constitute the material of the ’ present invention are not harmful to the human body as can be seen in Table 1 above.
Table 2 below shows the measurements of the environment polluting materials by Chungyong Environment Co., Ltd. so as to see the environment polluting degrees of the substances which are generated during the burning of the container which is made of the rice husks.
oo RE 5 <Experiment 2>
Table 2. Measurement of environment pollution during the burning )
Items | Standard | leasured Measuring RUKS result method
NH3 | 100ppm | ND | Environment pollution test method 600(12) ppm 26 50(2ppn | 976 | + |] 60pm | 15 | +] 3002ppn | MW 20pm | 620 | + cs2 | soppm | 0m | oe [
HHO | 20pm | 83 | [ ms | wpm | ow |e [
I EN VR EA
HN | opm | 2m | oe]
Br | Sm | Ww | +
CT IE I NA
Coon | opp |W |v “Hg | owg/S’ | Ww | +
As | sem | Ww 100(2mg/Se® | 185 | +} 1.Omg/ Sn’ 0003 | 1]
Pb | 5.0mg/Su’ ooi4 | om 1 | : 1.0mg/ Sn CI EE
Ong/S’ | Ww 20mg/ Sm’ coe | = 1] : 3mg/Sw’ | 048 oe | — [sm | + + The combustion rate was 81.5%.
As can be seen in Table 2 above, the density of the containers was high, and therefore, carbon monoxide (CO) was slightly generated during the burning.
However, it was far short of the standard pollution value, and therefore, the container is a non—polluting material as can be seen in Tables 1 and 2 above.
Therefore, as can be seen in the comparison of Tables 1 and 2, the materials of the present invention are also non-polluting materials.
Now the method for manufacturing the plastic-substitute goods by using the natural materials according to the present invention will be described based on actual examples.
<Example 1>
Rice husks were washed to a clean state. The rice husks thus washed were dried to a drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
After the confirmation of the agitation result, an aging was carried oul while slowly heating the mixture up to 100 degrees C in such a manner that the mixture would not be burned. When the mixture of the starch and water was heated, it became a glue.
It was made sure that the glue would not be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried rice husks were mixed with the glue, and then, an agitation was carried out, so that the rice husks would be completely mixed with the glue.
When it was confirmed that the rice husks and the glue were sufficiently mixed together, the mixture was dried to a drying degree of 98%. Here, the proportion of the starch glue was 20 wt%, while that of the rice husks was 80 wth. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 om.
Then 80 wt% of the husk-starch mixture was mixed with 5 wt% of water and ) 15 wt% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 - 350 degrees C and at a pressure : of 5 Kg/Cw®. The product was molded at a frequency of 30 — 80 seconds. <Example 2>
Rice plant stems were cut to a certain length (3 - 5cm). Then the cut stems were cleanly washed. The washed stems were dried to drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
After the confirmation of the agitation result, an aging was carried out while slowly heating the mixture up to 100 degrees C in such a manner that the mixture would not be burned. When the mixture of the starch and water was heated, it became a glue. [t was made sure that the glue would not be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried rice plant stems were mixed with the glue, and then, an 40 agitation was carried out, so that the rice plant would be completely mixed oo with the glue.
When it was confirmed that the rice plant and the glue were sufficiently mixed together, the mixture was dried to a drying degree of 98%. Here, the proportion of the starch glue was 20 wt%, while that of the rice plant was 80 wth. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 mm.
Then 80 wt% of the rice plant-starch mixture was mixed with 5 wt% of water and 15 wt% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 - 350 degrees C and at a pressure of 5 Kg/Cm®. The product was molded at a frequency of 30 - 80 seconds per product. <Example 3>
Saw dusts were cleanly washed. Then the washed saw dusts were dried to a drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
After the confirmation of the agitation result, an aging was carried out while slowly heating the mixture up to 100 degrees C in such a manner that the . mixture would not be burned. When the mixture of the starch and water was heated, it became a glue.
It was made sure that the glue would mot be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried saw dusts were mixed with the glue, and then, an agitation was carried out, so that the saw dusts would be completely mixed with the glue.
When it was confirmed that the saw dusts and the glue were sufficiently mixed together, the mixture was dried to a drying degree of 98%. Here, the proportion of the starch glue was 20 wt%, while that of the saw dusts was 80 wt®. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 mm.
Then 80 wt% of the saw dusts-starch mixture was mixed with 5 wt% of water and 15 wit% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 —- 350 degrees C and at a pressure of 5 Kg/Cm®>. The product was molded at a frequency of 30 - 80 seconds per product.
<Example 4>
Corn plant stems were cut into a length range of 3 = 5 cm. Then the cut corn plant stems were cleanly washed, and then, the washed corn plant stems were dried to a drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
That is, the agitation was carried out while visually checking the mixing degree.
After the confirmation of the agitation result, an aging was carried out while slowly heating the mixture up to 100 degrees C in such a manner that the mixture would not be burned. When the mixture of the starch and water was heated, it became a glue.
It was made sure that the glue would not be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried corn plant stems were mixed with the glue, and then, an agitation was carried out, so that the corn plant stems would be completely mixed with the glue.
When it was confirmed that the corn plant stems and the glue were . sufficiently mixed together, the mixture was dried to a drying degree of 98%.
Here, the proportion of the starch glue was 20 wt%, while that of the corn plant stems was 80 wt%. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 mm.
Then 80 wt% of the corn plant-starch mixture was mixed with 5 wt% of water and 15 wt% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 - 350 degrees C and at a pressure of § Kg/Cof. The product was molded at a frequency of 30 - 80 seconds per product. <Example 5>
Wheat plant stems were cut into a size range of 3 - 5 cm. Then the cut wheat plant stems were cleanly washed, and the washed wheat plant stems were dried to a drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
That is, the agitation was carried out while visually checking the mixing 40 degree.
After the confirmation of the agitation result, an aging was carried out while slowly heating the mixture up to 100 degrees C in such a manner that the mixture would not be burned. When the mixture of the starch and water was heated, it became a glue.
It was made sure that the glue would not be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried wheat plant stems were mixed with the glue, and then, an agitation was carried out, so that the wheat plant stems would be completely mixed with the glue.
When it was confirmed that the wheat plant stems and the glue were sufficiently mixed together, the mixture was dried to a drying degree of 98%.
Here, the proportion of the starch glue was 20 wt%, while that of the wheat plant stems was 80 wt®. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 mm.
Then 80 wt% of the wheat plant-starch mixture was mixed with 5 wt% of water and 15 wt% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 — 350 degrees C and at a pressure of 5 Kg/Cm?. The product was molded at a frequency of 30 - 80 seconds per product. ) <Example 6>
Bean plant stems were cut into a size range of 3 ~ 5 cm. Then the cut ’ bean plant stems were cleanly washed, and the washed bean plant stems were dried to a drying degree of 98%.
Meanwhile, 20 wt% of a starch was mixed with 80 wt% of water. This mixture was agitated, so that the starch and water could be uniformly mixed.
That is, the agitation was carried out while visually checking the mixing degree.
After the confirmation of the agitation result, an aging was carried out while slowly heating the mixture up to 100 degrees C in such a manner that the mixture would not be burned. When the mixture of the starch and water was heated, it became a glue.
It was made sure that the glue would not be agglomerated, and thus, the required viscosity of the glue was maintained.
The dried bean plant stems were mixed with the glue, and then, an 40 agitation was carried out, so that the bean plant stems would be completely mixed with the glue.
When it was confirmed that the bean plant stems and the glue were sufficiently mixed together, the mixture was dried to a drying degree of 98%.
Here, the proportion of the starch glue was 20 wt%, while that of the bean plant stems was 80 wt%. After drying the mixture, it was crushed to a size range of 0.01 mm - 0.1 mm.
Then 80 wt% of the bean plant-starch mixture was mixed with 5 wt% of water and 15 wt% of rosin or another natural resin. Then this final mixture was molded by a molding machine at a temperature of 100 -— 350 degrees C and at a pressure of 5 Kg/Cm*. The product was molded at a frequency of 30 - 80 seconds per product.
In the above, as to the crushed size of the agricultural byproducts such as rice husks, saw dusts, rice plant stems, corn plant stems, wheat plant stem, bean plant stem and the like, sizes of less than 0.01 mm or more than 0.1 mm are possible. If the raw material is a plant, any kind will be possible.
Further, rice husks, saw dusts, rice plant stems, corn plant stems, wheat plant stem, bean plant stem and the like can be combinedly used depending on the needs or on the use.
According to the present invention as described above, the raw materials are readily available ones, and therefore, the substitution effects will be great. Further, the raw materials are mostly combustible, but owing to the strong pressing during the molding, the product is not easily burned. Even if the product is burned, toxic gases will not be generated, and the flame will be of a low temperature kind. Therefore, in the case of a fire accident, the product will not contribute to the worsening of the catastrophe.
Claims (6)
1. A method for manufacturing plastic—substitute goods by using natural materials, comprising the steps of: preparing a glue by mixing 20 wt% of a starch and 80 wt% of water together, and by heating this mixture; washing and drying rice husks to a drying degree of 98%; mixing the glue and the rice husks together so as to form a mixture of the glue and the rice husks, drying them to a drying degree of 98%, and crushing them to a size range of
0.01 - 0.1 mm; mixing 80 wt% of the mixture of the glue and the rice husks, 5 wt% of water, and 15 wt% of rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 - 350 degrees C under a pressure of 5 Kg/Co® at a production frequency of 30 - 80 seconds per product.
2. A method for manufacturing plastic-substitute goods by using natural materials, comprising the steps of: preparing a glue by mixing 20 wt% of a starch and 80 wt% of water together, and by heating this mixture; cutting rice plant stems into 3 - 5 cm, and washing and drying the rice plant stems to a drying degree of 98%; mixing the glue and the rice plant stems together so as to form a mixture of the glue and the rice plant stems, drying them to a drying degree of 98%, and crushing them to a size range of 0.01 - 0.1 mm; mixing 80 wt% of the mixture of the glue and the rice plant stems, 5 wt% of water, and 15 wt% of rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 - 350 degrees C under a pressure of 5 Kg/Cm? at a production frequency of 30 ~ 80 seconds per product.
CT WO 01/05892 PCT/KR00/00159
3. A method for manufacturing plastic-substitute goods by using natural materials, comprising the steps of: preparing a glue by mixing 20 wt% of a starch and 80 wit% of water together, and by heating this mixture; washing and drying saw dusts to a drying degree of 98%; mixing the glue and the saw dusts together so as to form a mixture of the glue and the saw dusts, drying them to a drying degree of 98%, and crushing them to a size range of 0.01
- 0.1 mm; mixing 80 wt% of the mixture of the glue and the saw dusts, 5 wt% of water, and 15 wt% of rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 - 350 degrees C under a pressure of 5 Kg/Cm® at a production frequency of 30 - 80 seconds per product.
4. A method for manufacturing plastic-substitute goods by using natural materials, comprising the steps of: . preparing a glue by mixing 20 wt% of a starch and 80 wth of water together, and by heating this mixture; cutting corn plant stems into 3 - 5 cm, and washing and drying the corn plant stems to a drying degree of 98%; mixing the glue and the corn plant stems together so as to form a mixture of the glue and the corn plant stems, drying them to a drying degree of 98%, and crushing them to a size range of 0.01 - 0.1 mm; mixing 80 wt% of the mixture of the glue and the corn plant stems, 5 wt% of water, and 15 wt% of rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 - 350 degrees C under a pressure of 5 Kg/Cn’ at a production frequency of 30 - 80 seconds per product.
5. A method for manufacturing plastic-substitute goods by using natural materials, comprising the steps of: 40 preparing a glue by mixing 20 wt% of a starch and 80 wt% of water together, and by heating this mixture; cutting wheat plant stems into 3 — 5 cm, and washing and drying the wheat plant stems to a drying degree of 98%; mixing the glue and the wheat plant stems together so as to form a mixture of the glue and the wheat plant stems, drying them to a drying degree of 98%, and crushing them to a size range of 0.01 - 0.1 mm; mixing 80 wt% of the mixture of the glue and the wheat plant stems, 5 wt% of water, and 15 wt% of rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 - 350 degrees C under a pressure of 5 Kg/Cm® at a production frequency of 30 - 80 seconds per product.
6. A method for manufacturing plastic—substitute goods by using natural materials, comprising the steps of: preparing a glue by mixing 20 wt% of a starch and 80 wt® of water together, and by heating this mixture; cutting bean plant stems into 3 - 5 cm, and washing ) and drying the bean plant stems to a drying degree of 98%; mixing the glue and the bean plant stems together so as to form a mixture of the glue and the bean plant stems, drying them to a drying degree of 98%, and crushing them to a size range of 0.01 - 0.1 mm; mixing 80 wt% of the mixture of the glue and the bean plant stems, 5 wt% of water, and 15 wt% of-rosin to form a final mixture; and molding the final mixture by a molding machine at a temperature of 100 — 350 degrees C under a pressure of 5 Kg/Cm® at a production frequency of 30 - 80 seconds per product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990029663A KR19990073543A (en) | 1999-07-21 | 1999-07-21 | Innovational materials used to natural resources for substituting plastic, synthetic resin, constructional sources and etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200101007B true ZA200101007B (en) | 2001-09-07 |
Family
ID=19603517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200101007A ZA200101007B (en) | 1999-07-21 | 2001-02-06 | Method for manufacturing plastic-substitute goods by using natural materials. |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR19990073543A (en) |
| CN (1) | CN1281864A (en) |
| ZA (1) | ZA200101007B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ID28774A (en) * | 2000-01-03 | 2001-07-05 | Kim Young Bok Cs | METHOD OF MAKING REPLACEMENT ITEMS FOR PLASTIC MADE FROM NATURAL INGREDIENTS |
| KR20010089911A (en) * | 2000-03-13 | 2001-10-17 | 류영선 | The chemical-free bulding materials and it`s manufacturing method |
| KR100429784B1 (en) * | 2002-01-10 | 2004-05-03 | 김윤수 | Mulching film and it's producing method |
| CN106674614A (en) * | 2016-11-14 | 2017-05-17 | 南宁市钜丰塑业有限公司 | Additive for improving plastic hardness |
| CN106674618A (en) * | 2016-11-14 | 2017-05-17 | 南宁市钜丰塑业有限公司 | Additive for increasing hardness of plastic |
| KR101940990B1 (en) | 2017-06-20 | 2019-01-23 | 배길순 | Artificial flower manufacturing method using flowers |
| CN110744766B (en) * | 2019-10-08 | 2021-08-24 | 玉溪市新特科技有限公司 | Method for manufacturing parts by tobacco stems |
-
1999
- 1999-07-21 KR KR1019990029663A patent/KR19990073543A/en active Search and Examination
-
2000
- 2000-07-18 CN CN00121921A patent/CN1281864A/en active Pending
-
2001
- 2001-02-06 ZA ZA200101007A patent/ZA200101007B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1281864A (en) | 2001-01-31 |
| KR19990073543A (en) | 1999-10-05 |
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