CN112936498A - Preparation method of straw mould pressing tray - Google Patents
Preparation method of straw mould pressing tray Download PDFInfo
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- CN112936498A CN112936498A CN202110243554.4A CN202110243554A CN112936498A CN 112936498 A CN112936498 A CN 112936498A CN 202110243554 A CN202110243554 A CN 202110243554A CN 112936498 A CN112936498 A CN 112936498A
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- rice straw
- tray
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- straw
- adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/34—Manufacture or reconditioning of specific semi-finished or finished articles of cases, trunks, or boxes, of wood or equivalent material which cannot satisfactorily be bent without softening ; Manufacture of cleats therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
- B27N3/143—Orienting the particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to a logistics appliance. The technical scheme is as follows: a preparation method of a straw mould pressing tray comprises the following steps: 1) crushing: crushing the rice straw to make the length of the rice straw less than 4cm to obtain a rice straw shaving material; 2) drying: drying the rice straw shaving material, wherein the water content of the dried rice straw shaving material is less than 4.5%; 3) glue mixing: firstly, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue and the straw stalk shaving material into a glue mixer after the glue mixing treatment, and uniformly stirring; 4) paving raw materials: putting the raw materials evenly mixed with the glue into a hot-pressing die twice; 5) hot-press forming; 6) and (5) after the hot pressing process is finished, taking out the tray, and standing the tray in a cool and dry place for 8-16 h. The method can prepare the rice straw mould pressing tray with excellent mechanical property to replace the consumption of partial wood resources and improve the utilization rate of the rice straw.
Description
Technical Field
The invention relates to a logistics appliance, in particular to a method for processing a mould pressing tray.
Background
With the acceleration and deepening of economic trade, the logistics industry is greatly developed; the pallet is one of two major constituent units of modern logistics containers, is an important carrier for loading, unloading and transporting modern logistics goods, and has the advantages of high efficiency, low cost, safety and convenience compared with the traditional goods carrier, so that the demand and the holding quantity of the pallet in the logistics industry are increased at a high speed every year.
The prior logistics pallet mainly takes a wooden pallet as a main part and needs to consume a large amount of high-quality wood, but forest resources in China are deficient and wood supply is tense. Statistically, the global yield of straw is nearly 6 hundred million tons every year, wherein: the rice straw yield is nearly 2 hundred million tons in China. If properly utilized, the wood can replace a large amount of high-quality wood, and the crisis of wood shortage in China is effectively relieved.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a preparation method of a rice straw mould pressing tray, and the method can prepare the rice straw mould pressing tray with excellent mechanical property to replace the consumption of partial wood resources and improve the utilization rate of the rice straws.
The technical scheme provided by the invention is as follows:
a preparation method of a straw mould pressing tray comprises the following steps:
1) crushing
Crushing the rice straw to make the length of the rice straw less than 4cm to obtain a rice straw shaving material;
2) drying by baking
Drying the rice straw shaving material, wherein the water content of the dried rice straw shaving material is less than 4.5%;
3) glue mixing
Firstly, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue and the straw stalk shaving material into a glue mixer after the glue mixing treatment, and uniformly stirring; the weight ratio of the raw materials is as follows: 100 parts of straw stalk shaving material, 17-22 parts of adhesive and 0.008-0.013 part of curing agent;
4) raw material pavement
Putting the raw materials evenly mixed with the glue into a hot-pressing die twice, wherein the raw materials are put into the hot-pressing die for the first time by 30-40 percent of the total amount of the raw materials, the concave parts of reinforcing ribs, foot piers and the like in the die are filled and compacted, and the rest raw materials are all put into the die for the second time and are tiled;
5) hot press forming
And (3) hot pressing: firstly, hot pressing is carried out at the temperature of 105 ℃ to 115 ℃, the hot pressing time of 150 ℃ to 180 seconds and the hot pressing pressure of 14-16Mpa/cm3(ii) a Then, maintaining the pressure for 120-135 seconds; finally, pressure is released, and the pressure release speed is 6-10 MPa/min;
6) and (5) after the hot pressing process is finished, taking out the tray, and standing the tray in a cool and dry place for 8-16 h.
Pretreatment of straw stalks is required before step 1): the fresh straws are aired until the moisture content of the straws is below 22%, and then the straws are stored in a dry and cool indoor warehouse.
And (3) drying in the step 2), wherein the temperature of a dryer is 105-120 ℃, and the drying time is 25-30 min.
The stirring time of the glue mixer in the step 3) is 4-8 min.
The adhesive is one or a mixture of more than two of MDI adhesive, urea formaldehyde adhesive and phenolic aldehyde adhesive in any proportion.
The curing agent is ammonium chloride.
The invention has the beneficial effects that: the straw stalk adopted by the invention has good physical properties, and is low in price, convenient and easy to obtain; the straw stalk mould pressing tray with excellent mechanical property can be obtained by using the straw stalk mould pressing tray in the mould pressing tray, not only can replace partial wood resource consumption, but also can improve the utilization rate of the straw stalk and simultaneously can increase the income of farmers.
Drawings
FIG. 1 is a schematic perspective view of a rice straw molding tray according to the present invention.
FIG. 2 is a bending strength test curve diagram of the rice straw mould pressing tray reinforcing rib of the invention.
FIG. 3 is a test curve diagram of the bending strength of the rice straw molded tray.
FIG. 4 is a test curve diagram of the strength of the rice straw molding tray foot pier.
Detailed Description
The following further description is made with reference to the embodiments shown in the drawings.
1. Materials and methods
1.1 test materials
Fresh straw stalk is obtained from Hangzhou Yunzhang; MDI adhesives, wanhua chemical group, inc; urea formaldehyde adhesive, linam clarida chemical ltd; phenolic adhesive, 14L962 type, taier chemical (tokyo) ltd; ammonium chloride, available from hangzhou Longshan chemical Co., Ltd.
1.2 test devices
Three-return-stroke rotary dryer, tray hot press, tray compression testing machine, universal mechanical testing machine, constant-temperature constant-humidity box, electrothermal blowing drying box and the like
1.3 test methods
Pretreatment of straw stalks: airing fresh straws until the moisture content of the straws is below 22%, and storing the straws in a dry and cool indoor warehouse. The dried straws need to be crushed to obtain the rice straw shaving material with the length less than 4cm (the aperture of the screen of the crusher is 5-8 mm). The rice straw shaving material needs to be dried again by a dryer, the temperature of the dryer is 115-120 ℃, the drying time is 25-30 min, and the water content of the dried rice straw shaving material is not more than 4.5%.
The preparation process of the straw stalk mould pressing tray comprises the following steps: 100 parts of straw stalk shaving material, 17-22 parts of adhesive and 0.008-0.013 part of curing agent. The adhesive is one or a mixture of more than two of MDI adhesive, urea formaldehyde adhesive and phenolic aldehyde adhesive in any proportion; the curing agent is ammonium chloride. Adding the dried straw stalk shaving material into a glue mixer, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue into the glue mixer after the glue mixing is finished, and stirring for 6min to ensure that the rice straw stalk shaving material is uniformly stirred.
The raw material paving process adopts a double-layer paving method, namely, the raw materials evenly mixed with glue are put into a hot-pressing die twice, the first time is 30-40 percent of the total amount of the raw materials, the depressions such as reinforcing ribs, foot piers and the like in the die are filled and compacted, and the second time is to put all the rest raw materials into the die and spread the materials.
Then, the straw stalk shaving material is hot-pressed, the hot-pressing temperature is 105-3The pressure maintaining time is 120-135 seconds, and the pressure releasing speed is 8 MPa/min. And (4) after the pressure relief is finished, namely the hot pressing process is finished, taking out the tray, and standing the tray for 8-16h in a cool and dry place.
1.4 Performance testing
1.4.1 appearance detection detects whether the hot-pressing process of the sample is normal, and detects whether the tray has the conditions of chip falling, bubbling, layering, stains affecting the appearance, cracks, corner loss and the like.
1.4.2 Density test according to the requirements of GB/T17657 plus 2013 physicochemical Properties test method for Artificial Board and decorative Artificial Board, 6 samples of 50mm x 50mm are cut out for density test, and finally the arithmetic mean value of the densities of all the samples is obtained to be accurate to 0.01g/cm3。
1.4.3 Water content test 50g of sample is weighed according to the requirements of GB/T17657-.
1.4.4 Water absorption expansion Rate test according to the requirements of GB/T17657-. And taking out after soaking for 24h, and measuring the thickness of the center point of the sample. The measurement is completed within 10 min.
1.4.5 internal bond Strength test according to the requirements of GB/T17657 plus 2013 physicochemical Properties test method for Artificial Board and decorative Artificial Board, sample 3 blocks (M2 in figure 1) 50mm × 50mm are cut from the surface of a tray, a chuck special for internal bond Strength test is uniformly coated with molten hot melt adhesive, the sample is firmly glued on the chuck, and the chuck and the sample are completely glued after the hot melt adhesive is completely solidified, and the sample is placed in a universal mechanical testing machine for testing.
1.4.6 testing of the compressive strength of the reinforcing ribs, the reinforcing ribs of the die pressing tray with the specification of 250mm multiplied by 80mm are cut out and tested according to the requirement of 4.7 in GB/T17657-2013 test method of physical and chemical properties of artificial boards and decorative artificial boards.
1.4.7 fork lift bending strength test according to the specification of 8.2 in GB/T4996-2014 "Universal Flat Pallet test method for intermodal transport", the pallet is placed on a test bench as required, and the ultimate load value displayed by breakage or severe deformation is the fork lift bending strength value in the test process.
1.4.8 determination of the compressive strength of the foot pier is carried out according to the regulation of GB/T22350 and 2017 molded plywood 6.3.3.3.1, 3 (as M3 in figure 1) supporting legs are sawn to leave the integrity (the outer edge size of the upper surface is more than or equal to 20mm), and the supporting legs are reversely buckled on a workbench to carry out determination of the compressive performance of the supporting legs, so as to obtain the compressive bearing force value.
Example 1
The weight ratio of the mould pressing tray is as follows: 100 parts of straw stalk shaving material, 20 parts of adhesive and 0.01 part of curing agent. Adding the dried straw stalk shaving material into a glue mixer, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue into the glue mixer after the glue mixing is finished, and stirring for 6min to ensure that the rice straw stalk shaving material is uniformly stirred.
The raw material paving process adopts a double-layer paving method, namely, the raw materials which are evenly mixed with glue are put into a hot-pressing die twice, the first time is 35 percent of the total amount of the raw materials, the depressions such as reinforcing ribs, foot piers and the like in the die are filled and compacted, and the second time is to put all the rest raw materials into the die and spread the rest raw materials.
Then, carrying out hot pressing on the straw stalk shaving material, wherein the hot pressing temperature is 110 ℃, the hot pressing time is 160 seconds, and the hot pressing pressure is 15Mpa/cm3The pressure maintaining time is 125 seconds, and the pressure releasing speed is 8 MPa/min. And (5) after the pressure relief is finished, namely the hot pressing process is finished, taking out the tray, and placing the tray in a cool and dry place for standing for 12 hours.
EXAMPLE 1 basic Properties of molded trays
Example 1 mechanical Property testing of molded trays
Wherein: the bending strength test result of the reinforcing rib is shown in figure 2, the forking bending resistance test result is shown in figure 3, and the compression strength test result of the foot pier is shown in figure 4.
Example 2
The weight ratio of the mould pressing tray is as follows: 100 parts of straw stalk shaving material, 17 parts of adhesive and 0.013 part of curing agent. Adding the dried straw stalk shaving material into a glue mixer, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue into the glue mixer after the glue mixing is finished, and stirring for 4min to ensure that the rice straw stalk shaving material is uniformly stirred.
The raw material paving process adopts a double-layer paving method, namely, the raw materials which are evenly mixed with glue are put into a hot-pressing die twice, 40 percent of the total amount of the raw materials are put into the hot-pressing die for the first time, the concave parts of reinforcing ribs, foot piers and the like in the die are filled and compacted, and the rest raw materials are all put into the die for the second time and are paved.
Then hot-pressing the straw stalk shaving material at 105 deg.C for 180 s under 14Mpa/cm3The pressure maintaining time is 135 seconds, and the pressure releasing speed is 6 MPa/min. And (5) after the pressure relief is finished, namely the hot pressing process is finished, taking out the tray, and placing the tray in a cool and dry place for standing for 16 hours.
EXAMPLE 2 basic Properties of molded trays
Example 2 mechanical testing of molded trays
In the present embodiment, the bending strength test result chart of the reinforcing ribs, the bending resistance test result chart of the fork lifter, and the compression strength test result chart of the foot pier are omitted.
Example 3
The weight ratio of the mould pressing tray is as follows: 100 parts of straw stalk shaving material, 22 parts of adhesive and 0.008 part of curing agent. Adding the dried straw stalk shaving material into a glue mixer, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue into the glue mixer after the glue mixing is finished, and stirring for 8min to ensure that the rice straw stalk shaving material is uniformly stirred.
The raw material paving process adopts a double-layer paving method, namely, the raw materials which are evenly mixed with glue are put into a hot-pressing die twice, the first time is 30 percent of the total amount of the raw materials, the depressions such as reinforcing ribs, foot piers and the like in the die are filled and compacted, and the second time is to put all the rest raw materials into the die and spread the rest raw materials.
Then, carrying out hot pressing on the straw stalk shaving material, wherein the hot pressing temperature is 115 ℃, the hot pressing time is 150 seconds, and the hot pressing pressureIs 16Mpa/cm3The pressure maintaining time is 120 seconds, and the pressure releasing speed is 12 MPa/min. And (5) after the pressure relief is finished, namely the hot pressing process is finished, taking out the tray, and standing the tray in a cool and dry place for 8 hours.
EXAMPLE 3 basic Properties of molded trays
Example 3 mechanical testing of molded trays
In this embodiment, the bending strength test result chart of the reinforcing rib, the fork lifting bending resistance test result chart, and the compression strength test result chart of the foot pier are omitted.
Performance comparison of straw stalk molded tray and wood shaving molded tray
The results of comparing the performance of the molded trays of rice straw and wood shavings with the commercially available molded trays of wood shavings are shown below:
comparative results of basic Properties of molded trays
Mechanical property comparison result table of molded tray
As can be seen from the table, the current rice straw molding tray still has a certain difference with the wood molding tray in part of the performance, and the main reason of the difference is the characteristics of the rice straw raw material. Although a certain gap exists, the application scene is good in practical application, and the application scene can be complemented with the wood pallet, and meanwhile, the pressure of shortage of wood raw materials is reduced.
Claims (6)
1. A preparation method of a straw mould pressing tray comprises the following steps:
1) crushing
Crushing the rice straw to make the length of the rice straw less than 4cm to obtain a rice straw shaving material;
2) drying by baking
Drying the rice straw shaving material, wherein the water content of the dried rice straw shaving material is less than 4.5%;
3) glue mixing
Firstly, mixing an adhesive and a curing agent for glue mixing treatment, adding the glue and the straw stalk shaving material into a glue mixer after the glue mixing treatment, and uniformly stirring; the weight ratio of the raw materials is as follows: 100 parts of straw stalk shaving material, 17-22 parts of adhesive and 0.008-0.013 part of curing agent;
4) raw material pavement
Putting the straw stalk shaving material mixed with glue uniformly into a hot-pressing mould twice, wherein the amount of the first-time input raw material accounts for 30-40 percent of the total amount of the raw material, the depressions such as reinforcing ribs, foot piers and the like in the mould are filled and compacted, and the rest raw material is put into the mould and laid flat for the second time;
5) hot press forming
And (3) hot pressing: firstly, hot pressing is carried out at the temperature of 105 ℃ to 115 ℃, the hot pressing time of 150 ℃ to 180 seconds and the hot pressing pressure of 14-16Mpa/cm3(ii) a Then, maintaining the pressure for 120-135 seconds; finally, pressure is released, and the pressure release speed is 6-10 MPa/min;
6) and (5) after the hot pressing process is finished, taking out the tray, and standing the tray in a cool and dry place for 8-16 h.
2. The method for preparing the rice straw molding tray as claimed in claim 1, wherein the method comprises the following steps: pretreatment of straw stalks is required before step 1): the fresh straws are aired until the moisture content of the straws is below 22%, and then the straws are stored in a dry and cool indoor warehouse.
3. The method for preparing the rice straw molding tray as claimed in claim 2, wherein the method comprises the following steps: and (3) drying in the step 2), wherein the temperature of a dryer is 105-120 ℃, and the drying time is 25-30 min.
4. The method for preparing the rice straw molding tray as claimed in claim 3, wherein the method comprises the following steps: the stirring time of the glue mixer in the step 3) is 4-8 min.
5. The method for preparing the rice straw molding tray as claimed in claim 4, wherein the method comprises the following steps: the adhesive is one or a mixture of more than two of MDI adhesive, urea formaldehyde adhesive and phenolic aldehyde adhesive in any proportion.
6. The method for preparing the rice straw molding tray as claimed in claim 5, wherein the method comprises the following steps: the curing agent is ammonium chloride.
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| CN202110243554.4A CN112936498A (en) | 2021-03-05 | 2021-03-05 | Preparation method of straw mould pressing tray |
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| CN202110243554.4A CN112936498A (en) | 2021-03-05 | 2021-03-05 | Preparation method of straw mould pressing tray |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999091A (en) * | 2006-12-26 | 2007-07-18 | 南京林业大学 | Manufacturing method of wood/hybrid Chinese pennisetum composite artificial board |
| CN101032826A (en) * | 2007-04-16 | 2007-09-12 | 程兆民 | Method of processing vegetable fibre formed pipe and the preparing system |
| CN101134335A (en) * | 2007-09-18 | 2008-03-05 | 吉林大学 | Method of producing biological degradation corn stalk fiber board with bionic structure |
| CN101481507A (en) * | 2009-01-20 | 2009-07-15 | 广州华新科实业有限公司 | Wholly-degradable material, preparation thereof and method for preparing packing bag with the same |
| CN102501283A (en) * | 2011-11-23 | 2012-06-20 | 东北林业大学 | Facing decoration method utilizing wheat straws |
| CN106700593A (en) * | 2017-01-12 | 2017-05-24 | 宁波朴锐环保科技有限公司 | Straw and textile waste composite molded part and manufacturing method thereof |
| CN107322747A (en) * | 2017-06-14 | 2017-11-07 | 杭州沛诺包装科技有限公司 | A kind of processing method of the molded tray of the material based on cotton stalk |
-
2021
- 2021-03-05 CN CN202110243554.4A patent/CN112936498A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999091A (en) * | 2006-12-26 | 2007-07-18 | 南京林业大学 | Manufacturing method of wood/hybrid Chinese pennisetum composite artificial board |
| CN101032826A (en) * | 2007-04-16 | 2007-09-12 | 程兆民 | Method of processing vegetable fibre formed pipe and the preparing system |
| CN101134335A (en) * | 2007-09-18 | 2008-03-05 | 吉林大学 | Method of producing biological degradation corn stalk fiber board with bionic structure |
| CN101481507A (en) * | 2009-01-20 | 2009-07-15 | 广州华新科实业有限公司 | Wholly-degradable material, preparation thereof and method for preparing packing bag with the same |
| CN102501283A (en) * | 2011-11-23 | 2012-06-20 | 东北林业大学 | Facing decoration method utilizing wheat straws |
| CN106700593A (en) * | 2017-01-12 | 2017-05-24 | 宁波朴锐环保科技有限公司 | Straw and textile waste composite molded part and manufacturing method thereof |
| CN107322747A (en) * | 2017-06-14 | 2017-11-07 | 杭州沛诺包装科技有限公司 | A kind of processing method of the molded tray of the material based on cotton stalk |
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Application publication date: 20210611 |