CN102408584A - Preparation method for straw base packing material - Google Patents
Preparation method for straw base packing material Download PDFInfo
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- CN102408584A CN102408584A CN2011102529213A CN201110252921A CN102408584A CN 102408584 A CN102408584 A CN 102408584A CN 2011102529213 A CN2011102529213 A CN 2011102529213A CN 201110252921 A CN201110252921 A CN 201110252921A CN 102408584 A CN102408584 A CN 102408584A
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- wrapping material
- stalk base
- packing material
- straw
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Abstract
The invention relates to a preparation method for straw base packing material, belonging to the field of packing material and manufacturing. The invention comprises the following steps: crushing abandoned straws of crops like corn, rice and wheat and drying it; adding cheap adhesive and filler, and processing them by working procedures like mould pressing and air dry. The invention is characterized by abundant straw source and low price. The added adhesives are all naturally degradable materials and are low in content. The production process is simple and is low in energy consumption and has less pollution. The product after being added with inorganic fillers like calcium carbonate and talcum powder can be prepared into novel green packing material with a certain strength under smaller shaping pressure, which satisfies packing transportation requirements for smaller articles like fruits and vegetables, eggs, drugs, glass products and chinaware.
Description
Technical field
The present invention relates to a kind of preparation method of stalk base wrapping material; Be to be base-material with agricultural waste materials such as wheat, paddy rice, corn, Pericarppium arachidis hypogaeaes; Add sizing agent commonly used and mineral filler to increase the intensity of wrapping material; Adopt the hot compression molding technology to prepare the method for wrapping material, belong to wrapping material and manufacturing field.
Background technology
In recent years, domestic and international employed wrapping material are plastics mostly, for example polystyrene foamed (EPS), Vestolen PP 7052 (PP) material etc.Though this type plastic packing product light weight can't cause serious white pollution in the occurring in nature biological degradation, the follow-up difficult treatment of removing contamination is very big, has brought serious social negative effect.And along with the exhaustion of petroleum resources, the lifting of cost of winning, the price of plastics will go up thereupon.
Along with the raising of China's scientific and technological level and the growth of social demand; The output of farm crop such as grain, cotton improves year by year; The annual stalk resource that forms about 700,000,000 tons, wherein most of the burning not only do not make stalk resource obtain effectively utilizing again; And caused environmental pollution, in air, discharged a large amount of carbonic acid gas and solia particle.Stalk is a kind of reproducible Biological resources; Utilize modern chemical industry and biotechnology, the different components in stalk itself or the stalk is prepared into the product in fields such as industry, agricultural, biology, not only developed new utilization of resources mode; Strengthen ability of sustainable development; And alleviated a large amount of stalks by the problem of environmental pollution that burning brought, and open up the energy-saving and emission-reduction new way, have important economy, politics and Significance for Environment.
Utilizing agricultural wastes such as rice bar, straw to process the vegetable fibre amortizing packaging material through dry process such as mixing, mold pressings is a kind of effective way that turns waste into wealth.Tackiness agent and mineral filler are added into the intensity that can effectively promote wrapping material in the middle of the stalk, widen the Application Areas of material, promote using value.The wrapping material that make not only have good use properties and mechanical strength, and can realize degraded voluntarily, reduce white pollution.For this reason both at home and abroad all at the active research new packaging material to realize the substituted for plastic goods.Wherein, people's such as Zhang Guangrui patent of invention (patent publication No. is CN1040768) as main raw material, adds compression moulding at normal temperatures behind the tackiness agent with the bar of plant, stem, leaf.Equality people's patent of invention in the poplar (patent publication No. is CN1129664A) is to be raw material with the marrow in the corn straw, under the situation of not adding tackiness agent, prepares wrapping material through hot compression molding.
At present, both at home and abroad be seldom to add mineral filler in the wrapping material of matrix with the biological material, therefore require forming pressure bigger in forming process, could make that biomass bonded in hot-forming process is comparatively fine and close, goods have physical strength preferably.
Summary of the invention
The purpose of this invention is to provide a kind ofly have with low cost, light weight, mechanical strength is good, technology is simple and the preparation method of free of contamination a kind of stalk base wrapping material.
According to technical scheme provided by the invention: a kind of preparation method of stalk base wrapping material, its formula rate by weight, step is following:
(1) pulverize: get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, it is for use to obtain straw powder material;
(2) mix: get starch and 15-30 part Z 150PH of 30-100 part, be dissolved in 85-95 ℃ of water of 30-100 part, make mashed prod; Add the straw powder material of 30-100 part, mix after the stirring; Adding is dissolved in 50-60 ℃ of sizing agent 15-50 part in the water, adds mineral filler 15-100 part again, mixes after the stirring, obtains mixture;
(3) compression molding: the gained mixture is joined compression molding in the mould; Molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa;
(4) air-dry: as the mixture of compression molding to be taken out at the air-dry 24-48 of natural condition hour, promptly make stalk base wrapping material after the deburring moulding.
Said sizing agent is water glass and Sodium Silicofluoride 98min.
Said mineral filler is lime carbonate or talcum powder.
Said agricultural waste material is one of in wheat straw, corn, paddy rice and the Pericarppium arachidis hypogaeae or the combination of any several kinds arbitrary proportion.
Stalk base wrapping material performance evaluation is measured:
1, cantilever beam impact strength is measured:
Test prepares according to the GB5471 relevant regulations, and each sample that need test is divided into five parts, continuously tested five times, averaged.
Shock strength unit is (KJ/m
2), calculating formula is following:
In the formula
The shock strength of a-material, KJ/m
2
W-destroys sample and absorbs and revised Energy value J;
The b-specimen width, mm;
The h-sample thickness, mm;
2, moisture absorption performance measurement: stalk base wrapping material can absorb the moisture in the middle of the air under field conditions (factors), and its weight is increased, and mechanical strength reduces, and therefore need the moisture absorption ratio of measure sample.Calculating formula is following when calculating moisture absorption ratio:
Wherein: k-moisture absorption ratio/%; Q
1Weight/g after the-moisture absorption; Q
2Weight/g after the-moisture absorption;
Beneficial effect of the present invention:
1, the present invention utilizes the base material of the stalk of the huge agricultural waste material of the annual quantum of output of China such as wheat, corn, paddy rice etc. as wrapping material, and its wide material sources, preparation process are simple, and required equipment is less, is suitable for preparing plane mold pressing packing articles.
2, the present invention uses the strongthener of mineral filler as wrapping material; Starch and Z 150PH can be coated on the surface of mineral filler preferably; Make the bonding force of mineral filler and stalk base material strengthen, therefore when hot-forming, can adopt less pressure can make material have intensity preferably.According to contrast experiment's measuring and calculating, the wrapping material of interpolation mineral filler have improved more than 60% than the physical strength of the wrapping material that do not use mineral filler, satisfy the request for utilization as the small package package material;
3, the present invention can effectively improve the outward appearance of Straw bale package material because of using conventional mineral fillers such as lime carbonate, talcum powder, makes it have tidiness preferably;
4, the present invention can be widely used in the packing of small articles such as vegetables, fruit, medicine, birds, beasts and eggs, glass and ceramic, and Application Areas is extensive, and has the better economic application prospect.
Description of drawings
Fig. 1 stalk base of the present invention wrapping material molding structure synoptic diagram.
Embodiment
Following examples and Comparative Examples are further described the present invention, but the present invention is not limited in these embodiment.
The comparative example 1
Get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material; Get 10g starch and 4g Z 150PH and fully be dissolved in 90 ℃ of water for usely respectively, the straw powder material 30g that gets behind the crushing screening adds wherein, in whisking appliance, is stirred to mix.Na with 20g
2SiO
3Na with 2g
2SiF
6Be dissolved in 50 ℃ the water and form homogeneous phase solution, pour into then in the mixture, pour mold pressing in the grinding tool after the mixing into, molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa; Air-dry under field conditions (factors) 24 hours, promptly get and contrast wrapping material.
Recording the sample shock strength is 0.456KJm
-2, all moisture absorption ratios are 3.0%.
Embodiment 1
Get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material; 10g starch and 4g Z 150PH fully are dissolved in 90 ℃ of water for use respectively, the straw powder material 30g that gets behind the crushing screening adds wherein, in whisking appliance, is stirred to mix.Na with 20g
2SiO
3Na2SiF with 2g
6Be dissolved in 55 ℃ the water and form homogeneous phase solution, pour into then in the mixture, add 10g lime carbonate again, pour mold pressing in the grinding tool after the mixing into, molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa; Promptly made stalk base wrapping material in air-dry under field conditions (factors) 24 hours.
Recording the sample shock strength is 0.677KJm
-2, all moisture absorption ratios are 3.2%.
As shown in Figure 1, mineral filler (2) is covered by sizing agent (1), and then makes the dispersiveness of mineral filler in stalk base material (3) be improved, and increases the bonding force of itself and stalk base material (3) simultaneously, has promoted the physical strength of material.
Embodiment 2
Get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material; 10g starch and 4g Z 150PH fully are dissolved in 85 ℃ of water for use respectively, the straw powder material 30g that gets behind the crushing screening adds wherein, in whisking appliance, is stirred to mix.Na with 20g
2SiO
3Na2SiF with 2g
6Be dissolved in 50 ℃ the water and form homogeneous phase solution, pour into then in the mixture, add 20g lime carbonate again, pour mold pressing in the grinding tool after the mixing into, molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa; Promptly made stalk base wrapping material in air-dry under field conditions (factors) 24 hours.
Recording the sample shock strength is 0.552KJm
-2, all moisture absorption ratios are 3.3%.
Embodiment 3
Get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material; 10g starch and 4g Z 150PH fully are dissolved in 85 ℃ of water for use respectively, the straw powder material 30g that gets behind the crushing screening adds wherein, in whisking appliance, is stirred to mix.Na with 20g
2SiO
3Na2SiF with 2g
6Be dissolved in 55 ℃ the water and form homogeneous phase solution, pour into then in the mixture, add 28g lime carbonate again, pour mold pressing in the grinding tool after the mixing into, molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa; Promptly made stalk base wrapping material in air-dry under field conditions (factors) 24 hours.
Recording the sample shock strength is 0.498KJm
-2, all moisture absorption ratios are 3.3%.
Embodiment 4
Get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material; 10g starch and 4g Z 150PH fully are dissolved in 95 ℃ of water for use respectively, the straw powder material 30g that gets behind the crushing screening adds wherein, in whisking appliance, is stirred to mix.Na with 20g
2SiO
3Na with 4g
2SiF
6Be dissolved in 55 ℃ the water and form homogeneous phase solution, pour into then in the mixture, add 10g lime carbonate again, pour mold pressing in the grinding tool after the mixing into, molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa; Promptly made stalk base wrapping material in air-dry under field conditions (factors) 24 hours.
Recording the sample shock strength is 0.763KJm
-2, all moisture absorption ratios are 3.7%.
Claims (4)
1. the preparation method of stalk base wrapping material is characterized in that: its formula rate by weight, step is following:
(1) pulverizes: get agricultural waste material, cross 40 mesh sieves after the mechanical disintegration, obtain straw powder material;
(2) mix: get starch and 15-30 part Z 150PH of 30-100 part, be dissolved in 85-95 ℃ of water of 30-100 part, make mashed prod; Add the straw powder material of 30-100 part, mix after the stirring; Adding is dissolved in 50-60 ℃ of sizing agent 15-50 part in the water, adds mineral filler 15-100 part again, mixes after the stirring, obtains mixture;
(3) compression molding: the gained mixture is joined compression molding in the mould; Molding temperature is 120 ℃, and clamp time is 2-5 hour, and molding pressure is 400000Pa;
(4) air-dry: as the mixture of compression molding to be taken out at the air-dry 24-48 of natural condition hour, promptly make stalk base wrapping material after the deburring moulding.
2. according to the preparation method of the said stalk base of claim 1 wrapping material, it is characterized in that: said sizing agent is water glass and Sodium Silicofluoride 98min.
3. according to the preparation method of the said stalk base of claim 1 wrapping material, it is characterized in that: said mineral filler is lime carbonate or talcum powder.
4. according to the preparation method of the said stalk base of claim 1 wrapping material, it is characterized in that: said agricultural waste material is one of wheat straw, corn, paddy rice and Pericarppium arachidis hypogaeae or any several kinds arbitrary proportion combination.
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| CN2011102529213A CN102408584A (en) | 2011-08-30 | 2011-08-30 | Preparation method for straw base packing material |
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| CN2011102529213A CN102408584A (en) | 2011-08-30 | 2011-08-30 | Preparation method for straw base packing material |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786807A (en) * | 2012-08-10 | 2012-11-21 | 九江学院 | Straw base composite material and preparation method thereof |
| CN103333514A (en) * | 2013-07-08 | 2013-10-02 | 中国石油大学(华东) | Degradable reinforced plant fiber material and preparation method thereof |
| CN104845397A (en) * | 2015-04-29 | 2015-08-19 | 防城港港美家建材市场投资股份有限公司 | Environment-friendly material |
| CN105647216A (en) * | 2016-03-04 | 2016-06-08 | 章强华 | Environment-friendly composite packaging material and preparation method thereof |
| CN105885106A (en) * | 2015-04-09 | 2016-08-24 | 湖南工业大学 | Cassava starch waste paper pulp composite foam material and preparation method thereof |
| CN106147261A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | The string of a kind of environmental protection, powder, bits class composite |
| CN106147260A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | A kind of string, powder, bits class composite |
| CN108407036A (en) * | 2018-04-10 | 2018-08-17 | 安徽宏志建材科技有限公司 | A kind of high-performance composite board material preparation method and high-performance composite board material |
Citations (1)
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|---|---|---|---|---|
| CN101377395A (en) * | 2008-09-04 | 2009-03-04 | 黄明初 | Pressure forming firework external cylinder and fireworks display marble casing and manufacturing method thereof |
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2011
- 2011-08-30 CN CN2011102529213A patent/CN102408584A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377395A (en) * | 2008-09-04 | 2009-03-04 | 黄明初 | Pressure forming firework external cylinder and fireworks display marble casing and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《包装工程》 20070115 高德等 "玉米秸秆缓冲包装材料的研究" 第27-29页 1-4 第28卷, 第1期 * |
| 高德等: ""玉米秸秆缓冲包装材料的研究"", 《包装工程》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786807A (en) * | 2012-08-10 | 2012-11-21 | 九江学院 | Straw base composite material and preparation method thereof |
| CN103333514A (en) * | 2013-07-08 | 2013-10-02 | 中国石油大学(华东) | Degradable reinforced plant fiber material and preparation method thereof |
| CN103333514B (en) * | 2013-07-08 | 2015-05-20 | 中国石油大学(华东) | Degradable reinforced plant fiber material and preparation method thereof |
| CN105885106A (en) * | 2015-04-09 | 2016-08-24 | 湖南工业大学 | Cassava starch waste paper pulp composite foam material and preparation method thereof |
| CN106147261A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | The string of a kind of environmental protection, powder, bits class composite |
| CN106147260A (en) * | 2015-04-21 | 2016-11-23 | 浙江新木材料科技有限公司 | A kind of string, powder, bits class composite |
| CN104845397A (en) * | 2015-04-29 | 2015-08-19 | 防城港港美家建材市场投资股份有限公司 | Environment-friendly material |
| CN105647216A (en) * | 2016-03-04 | 2016-06-08 | 章强华 | Environment-friendly composite packaging material and preparation method thereof |
| CN108407036A (en) * | 2018-04-10 | 2018-08-17 | 安徽宏志建材科技有限公司 | A kind of high-performance composite board material preparation method and high-performance composite board material |
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Application publication date: 20120411 |
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