CN105885106A - Cassava starch waste paper pulp composite foam material and preparation method thereof - Google Patents
Cassava starch waste paper pulp composite foam material and preparation method thereof Download PDFInfo
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- CN105885106A CN105885106A CN201510163779.3A CN201510163779A CN105885106A CN 105885106 A CN105885106 A CN 105885106A CN 201510163779 A CN201510163779 A CN 201510163779A CN 105885106 A CN105885106 A CN 105885106A
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Abstract
The invention discloses a cassava starch waste paper pulp composite foam material and a preparation method thereof. After cassava starch, waste paper pulp fiber, lubricant and a compound plasticizer are mixed, the product is obtained by using a screw extruder through melt blending, extrusion and foaming. The melt blending components include, by mass, 60-80 parts of the cassava starch, 10-30 parts of the waste paper pulp fiber, 5-20 parts of the compound lubricant and the compound plasticizer accounting for 20-40% of the total amount of the starch. The cassava starch is modified into thermoplastic starch by adopting the plasticizer glycerin/urea. By adding the waste paper pulp fiber, on the one hand, a certain mechanical strength is provided, improvement of melt strength is promoted, bubbles are stabilized, and accordingly the compression strength of the material is improved; on the other hand, the water resistance of the material can be improved. The product is cheap, good in water resistance and compression strength, completely biodegradable, non-toxic and environmentally friendly.
Description
Technical field
The present invention relates to a kind of environmental protection amortizing packaging material, particularly a kind of tapioca secondary stock composite foam material and preparation method thereof.
Background technology
The most a large amount of amortizing packaging materials used are still the foam plasticss such as the EPS not degrading, EPP, polyurethane, define serious city " white pollution ".An one of now widely used class biodegradable natural high polymer raw material is starch.Starch is polysaccharide compound, is decomposed by microbial action, be finally decomposed to CO under natural environment2And H2O, and wide material sources, cheap.But the strand of starch and intermolecular there is great amount of hydroxy group, easily in strand and molecule interchain forms hydrogen bond, therefore indissoluble, infusibility；Poor water resistance, one meets water or for a long time in humid air, easily absorbs moisture, and its stability declines；During simple starch foaming, cell size and the uniformity are difficult to control to, to such an extent as to the compressive strength of material does not reaches actual requirement, and easily become fragile.Therefore, in the present invention, during starch foaming, secondary stock Plant fiber adds the mechanical strength on the one hand providing certain, is conducive to improving melt strength, stable bubble hole, thus improves material and obtain compressive strength；On the other hand, by improving formula and technique, the resistance to water of material can be improved.
Summary of the invention
It is an object of the invention to the shortcoming overcoming existing thermoplastic starch complete biodegradable expanded material, a kind of plant fiber enhanced starch composite foam material and preparation method thereof is provided, to realize strengthening the resistance to water of degradable starch composite foam material and improving its compressive strength, the city " white pollution " that plastics bring really can be alleviated.
The present invention is achieved by the following technical solutions: after tapioca, waste paper pulp fiber, compounded lubricant, composite elasticizer mixing, utilize the product that screw extruder melt blending extrusion foaming obtains, the mass fraction of each component of described melt blending is: tapioca 60 ~ 80 parts (preferably 70 parts), waste paper pulp fiber 10 ~ 30 parts (preferably 20 parts), lubricant 5 ~ 20 parts (preferably 10 parts), and composite elasticizer accounts for the 20 ~ 40%(preferably 30% of starch total amount).
Described compounded lubricant is stearic acid and 1000 ~ 2000 mesh (preferably 1500 mesh) calcium carbonate, mass ratio: 3:1.
Described composite elasticizer is glycerol/carbamide, and glycerol and urea quality ratio are the preferred 2:1 of 2 ~ 3:1 ~ 2().
The preparation of above-mentioned plant fiber enhanced starch composite foam material, comprises the following steps that:
(1) process of waste paper pulp fiber: waste and old corrugated fibre box, under room temperature, the preferred 36h of the 24 ~ 48h(that is soaked in water), pulverize again, the preferred 36h of 24 ~ 48h(it is dried in the baking oven of 100 ~ 110 DEG C (preferably 105 DEG C)), then cross 100 ~ 150 mesh (preferably 120 mesh) sieve, obtain waste paper pulp fiber；
(2) getting the raw materials ready: tapioca 60 ~ 80 parts, step (1) gained waste paper pulp fiber 10 ~ 30 parts (dried mass fraction), compounded lubricant 5 ~ 20 parts, it is 2 ~ 3:1 ~ 2 with urea quality ratio that glycerol/carbamide composite elasticizer accounts for 20 ~ 40%(glycerol of starch total amount)；
(3) waste paper pulp fiber is immersed in temperature be 30 ~ 35 DEG C (preferably 35 DEG C), mass percent be 5% ~ 10%(preferably 8%) sodium hydroxide aqueous solution in the preferred 20min of 10 ~ 30min(), waste paper pulp fiber and sodium hydrate aqueous solution mass ratio are the preferred 1:1 of 1:0.5 ~ 1.5(), water therein is exactly as foaming agent；
(4) by 60 ~ 80 portions of tapiocas, 60 ~ 80 DEG C of (preferably 70 DEG C) baking ovens are dried the preferred 3h of 2 ~ 4h(), it is blended with the composite elasticizer in above-mentioned steps (2) again, under room temperature, utilize high mixer that 5 ~ 20min(preferred 15min is blended), stand the preferred 24h of 20 ~ 30h() after, add waste paper pulp fiber 10 ~ 30 parts, the compounded lubricant 5 ~ 20 parts handled well, under room temperature, 15 ~ 35min(preferred 20min is blended)；
(5) by screw extruder extrusion foaming, control head temperature 100 ~ 130 DEG C (preferably 120 DEG C), the preferred 10MPa of head pressure 1 ~ 50MPa(), screw speed 80 ~ 100r/min(preferably 90 r/min).
The plant fiber enhanced starch composite foam material of the present invention takes full advantage of Plant fiber and starch is biodegradable, the excellent specific property such as wide, inexpensive of originating, and plays effective coordinative role and complementary action on material property.Containing the material such as lignin, hemicellulose in secondary stock, utilizing them at the different solubility of sodium hydroxide solution, by the dissolution process such as lignin, hemicellulose, thus obtain waste paper pulp fiber, this is necessary for the intensity improving material；Owing to starch molecular chain contains great amount of hydroxy group, in strand, easily form hydrogen bond, therefore indissoluble, infusibility with molecule interchain, therefore add composite elasticizer glycerol/carbamide.Glycerol contains great amount of hydroxy group, and carbamide contains substantial amounts of amino, and both of which can form hydrogen bond with the hydroxyl in starch, can effective plasticized starch, and screw extruder high temperature, high shear force effect under realize melt-processed；Stearic acid and calcium carbonate powder itself have good lubrication, material flowing velocity in double screw extruder can be accelerated, prevent waste paper pulp fiber, the starch time of staying in barrel long, decompose, calcium carbonate may advantageously facilitate starch crosslinking simultaneously, improves the intensity of goods, apparent mass and Waterproof corrosion performance.Finally give plant fiber enhanced starch composite foam material, there is low cost, the excellent properties such as have certain resistance to water, compressive strength good, and fully biodegradable, nontoxic pollution-free, it is possible to substitute foam plastics based packaging material.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
(1) process of waste paper pulp fiber: waste and old corrugated fibre box, under room temperature, be soaked in water 24h, then pulverizes, and is dried 36h, then crosses 100 mesh sieves, obtain waste paper pulp fiber in the baking oven of 110 DEG C；
(2) getting the raw materials ready: tapioca 600g, waste paper pulp fiber 250g, compounded lubricant (1500 mesh calcium carbonate) 150g, glycerol/carbamide composite elasticizer accounts for 20%(glycerol 90g, the carbamide 30g of starch total amount)；
(3) waste paper pulp fiber is immersed in temperature be 30 DEG C, mass percent be 5% sodium hydroxide aqueous solution in 15min, wherein, waste paper pulp fiber and sodium hydrate aqueous solution mass ratio are 1:0.5；
(4) by 600g tapioca, 60 DEG C of baking ovens are dried 2h, then is blended with the composite elasticizer in above-mentioned (2), under room temperature, utilize high mixer that 10min is blended, after standing 20h, add 250g waste paper pulp fiber, the 150g compounded lubricant handled well, under room temperature, 15min is blended；
(5) by double screw extruder extruding pelletization, head temperature 100 DEG C, head pressure 10MPa, screw speed 80r/min are controlled.
New material mechanical property, the water absorption rate prepared are compared as follows table with thermoplastic wood sweet potato starch
Embodiment 2:
(1) process of waste paper pulp fiber: waste and old corrugated fibre box, under room temperature, be soaked in water 48h, then pulverizes, and is dried 48h, then crosses 150 mesh sieves, obtain waste paper pulp fiber in the baking oven of 100 DEG C；
(2) getting the raw materials ready: tapioca 750g, waste paper pulp fiber 150g, compounded lubricant (1500 mesh calcium carbonate) 100g, glycerol/carbamide composite elasticizer accounts for 40%(glycerol 150g, the carbamide 150g of starch total amount)；
(3) waste paper pulp fiber is immersed in temperature be 40 DEG C, mass percent be 10% sodium hydroxide aqueous solution in 20min, wherein, waste paper pulp fiber and sodium hydrate aqueous solution mass ratio are 1:1；
(4) by 750g tapioca, 80 DEG C of baking ovens are dried 3h, then is blended with the composite elasticizer in above-mentioned (2), under room temperature, utilize high mixer that 20min is blended, after standing 24h, add 150g waste paper pulp fiber, the 100g compounded lubricant handled well, under room temperature, 20min is blended；
(5) by double screw extruder extruding pelletization, head temperature 130 DEG C, head pressure 10MPa, screw speed 100r/min are controlled.
New material mechanical property, the water absorption rate prepared are compared as follows table with thermoplastic wood sweet potato starch
Embodiment 3:
(1) process of waste paper pulp fiber: waste and old corrugated fibre box, under room temperature, be soaked in water 36h, is dried 36h and pulverizes, cross 120 mesh sieves, obtain waste paper pulp fiber in the baking oven of 105 DEG C；
(2) getting the raw materials ready: tapioca 700g, waste paper pulp fiber 200g, compounded lubricant (1500 mesh calcium carbonate) 100g, glycerol/carbamide composite elasticizer accounts for 30%(glycerol 140g, the carbamide 70g of starch total amount)；
(3) waste paper pulp fiber is immersed in temperature be 35 DEG C, mass percent be 8% sodium hydroxide aqueous solution in 20min, wherein, waste paper pulp fiber and sodium hydrate aqueous solution mass ratio are 1:1；
(4) by 700g tapioca, 70 DEG C of baking ovens are dried 3h, then is blended with the composite elasticizer in above-mentioned (2), under room temperature, utilize high mixer that 15min is blended, after standing 24h, add 200g waste paper pulp fiber, the 100g compounded lubricant handled well, under room temperature, 20min is blended；
(5) by double screw extruder extruding pelletization, control head temperature 120 DEG C, head pressure 10MPa, screw speed select 90 r/min.
New material compressive strength, the water absorption rate prepared are compared as follows table with thermoplastic wood sweet potato starch expanded material
Claims (2)
1. tapioca secondary stock composite foam material and preparation method thereof, it is characterized in that: by tapioca 60 ~ 80 parts, waste paper pulp fiber 10 ~ 30 parts, compounded lubricant 5 ~ 20 parts (stearic acid: 1000 ~ 2000 mesh calcium carbonate=3:1), glycerol/carbamide (glycerol: carbamide=2 ~ 3:1 ~ 2) composite elasticizer accounts for the 20 ~ 40% of starch total amount, (time 5 ~ 20 minute is blended) after utilizing high mixer to be blended, with water vapour as foaming agent, the product obtained by screw extruder melt blending extrusion foaming.
2. composite foam material described in claim 1 and preparation method thereof, its feature comprises the steps:
(1) process of waste paper pulp fiber: waste and old corrugated fibre box, under room temperature, be soaked in water 24 ~ 48h, then pulverizes, and is dried 24 ~ 48h, then crosses 100 ~ 150 mesh sieves, obtain waste paper pulp fiber in the baking oven of 100 ~ 110 DEG C；
(2) get the raw materials ready: tapioca 60 ~ 80 parts, step (1) gained waste paper pulp fiber 10 ~ 30 parts (dried mass fraction), compounded lubricant 5 ~ 20 parts, glycerol/carbamide composite elasticizer accounts for the 20 ~ 40% of starch total amount, gets the raw materials ready；
(3) waste paper pulp fiber is immersed in temperature be 30 DEG C ~ 35 DEG C, mass percent be 5% ~ 10% sodium hydroxide aqueous solution in 10 ~ 30min, waste paper pulp fiber and sodium hydrate aqueous solution mass ratio are 1:0.5 ~ 1.5, and water therein is exactly as foaming agent；
(4) by 60 ~ 80 portions of tapiocas, 60 ~ 80 DEG C of (preferably 70 DEG C) baking ovens are dried 2 ~ 4h, it is blended with the composite elasticizer in above-mentioned (2) again, under room temperature, utilize high mixer that 5 ~ 20min is blended, after standing 20 ~ 30h, add waste paper pulp fiber 10 ~ 30 parts, the compounded lubricant 5 ~ 20 parts handled well, under room temperature, 15 ~ 35min is blended；
(5) by screw extruder extrusion foaming, head temperature 100 ~ 130 DEG C, head pressure 1 ~ 50MPa, screw speed 80 ~ 100r/min are controlled.
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| CN201510163779.3A CN105885106A (en) | 2015-04-09 | 2015-04-09 | Cassava starch waste paper pulp composite foam material and preparation method thereof |
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| CN201510163779.3A CN105885106A (en) | 2015-04-09 | 2015-04-09 | Cassava starch waste paper pulp composite foam material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832985A (en) * | 2017-01-03 | 2017-06-13 | 广西大学 | A kind of paper pulp foamed material and preparation method thereof |
| CN108192370A (en) * | 2017-12-11 | 2018-06-22 | 许水仙 | A kind of preparation method of degradable high intensity amortizing packaging material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07118393A (en) * | 1993-10-19 | 1995-05-09 | Nobuo Shiraishi | Liquefied lignocellulose-starch solution and its production |
| CN1357562A (en) * | 2001-12-29 | 2002-07-10 | 北京凯奇北方环保材料技术开发有限公司 | Composition for producing foamed plant starch packing material capable of being degraded completely |
| CN102408584A (en) * | 2011-08-30 | 2012-04-11 | 姜勇 | Preparation method for straw base packing material |
-
2015
- 2015-04-09 CN CN201510163779.3A patent/CN105885106A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07118393A (en) * | 1993-10-19 | 1995-05-09 | Nobuo Shiraishi | Liquefied lignocellulose-starch solution and its production |
| CN1357562A (en) * | 2001-12-29 | 2002-07-10 | 北京凯奇北方环保材料技术开发有限公司 | Composition for producing foamed plant starch packing material capable of being degraded completely |
| CN102408584A (en) * | 2011-08-30 | 2012-04-11 | 姜勇 | Preparation method for straw base packing material |
Non-Patent Citations (2)
| Title |
|---|
| 林瑞珍: "废纸板纤维/淀粉发泡复合材料的制备及其性能研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 颜鑫主编: "《无机化工生产技术与操作（第1版）》", 31 January 2011, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832985A (en) * | 2017-01-03 | 2017-06-13 | 广西大学 | A kind of paper pulp foamed material and preparation method thereof |
| CN106832985B (en) * | 2017-01-03 | 2018-03-13 | 广西大学 | A kind of paper pulp foamed material and preparation method thereof |
| CN108192370A (en) * | 2017-12-11 | 2018-06-22 | 许水仙 | A kind of preparation method of degradable high intensity amortizing packaging material |
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