CN105331034A - Method for preparing plastic from algae - Google Patents
Method for preparing plastic from algae Download PDFInfo
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- CN105331034A CN105331034A CN201510736047.9A CN201510736047A CN105331034A CN 105331034 A CN105331034 A CN 105331034A CN 201510736047 A CN201510736047 A CN 201510736047A CN 105331034 A CN105331034 A CN 105331034A
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Abstract
The invention relates to a method for preparing plastic from algae. The method includes the concrete steps that 1, an algae raw material is cleaned preliminarily to remove impurities, dried, and put into a planetary ball mill to be ground and passes through a screen of 600-800 meshes; 2, screened algae powder, polyesteramide, maleic anhydride, styrene and benzoyl peroxide are added into organic solvent together and heated to 40 DEG C-80 DEG C to react for 5-10 h on the vacuumized and stirred conditions to obtain a pre-reaction liquid; 3, by weight, 3-6 parts of compatibilizers and 2-5 parts of lubricant are added into 50-70 parts of the pre-reaction liquid, and after being mixed uniformly, the mixture is extruded and granulated through a co-rotating twin screw extruder to obtain the product. Whole algae bodies can be adopted for preparation, the algae use ratio is greatly increased, the prepared plastic product has standard performance and is low in cost, and the process is simple and suitable for industrial production.
Description
Technical field
The present invention relates to technical field of polymer materials, especially relating to a kind of take algae as plastics prepared by main raw material.
Background technology
The application of algae is the previous comparatively popular research topic of order, and one of them direction is using the plastics of algae as the easy degraded of raw material preparation of plastics, thus reduce oil use and can protection of the environment.But algae is applied to plastics and is also in conceptual phase, when its main difficult problem is after algae mixes with softening agent, expanding material, bonding force is inadequate, causes a series of mechanical properties such as the pull resistance of the plastic prod finally obtained, crushing resistance, splitting resistance, torsion fracture resistant cannot be up to standard.Because the conjugation of algae raw material and other raw materials causes small-molecule starting material such as softening agent etc. easily to move not during another problem, thus affect the quality of product.If strengthen the use of the raw material such as softening agent, expanding material, problem above can be overcome, but the consumption of algae can be made to be reduced to very low degree, also just cannot embody and utilize algae to prepare the advantage of the energy-saving and cost-reducing environmental protection of plastics.
Another one problem prepares plastics with algae at present, mainly utilizes the protein inside algae; But the ratio that the protein of algae accounts for algae all wts is not high, this means still have other compositions of a large amount of algae to be rejected, the utilization ratio of algae raw material is too low.
Summary of the invention
For the problems referred to above that prior art exists, the applicant provides a kind of method adopting algae to prepare plastics.Adopt present method that full frond can be utilized to be prepared, greatly improve algae utilization ratio; The plastic prod performance prepared is up to standard, and cost is low, technique simple, is applicable to suitability for industrialized production.
Technical scheme of the present invention is as follows:
Adopt algae to prepare a method for plastics, concrete steps are as follows:
(1) algae raw material is tentatively cleaned removal impurity post-drying, put into planetary ball mill and grind, cross 600 ~ 800 mesh sieves;
(2) the algae powder be sieved and polyesteramide, maleic anhydride, vinylbenzene, benzoyl peroxide are together added in organic solvent, under the condition vacuumizing and stir, be heated to 40 ~ 80 DEG C of reactions 5 ~ 10 hours, obtain pre-reaction liquid;
(3) in 50 ~ 70 weight part pre-reaction liquid, add 3 ~ 6 weight part expanding materials and 2 ~ 5 weight part lubricants, by parallel dual-screw extruding machine extruding pelletization after mixing, obtain product.
Water content after the described algae raw material oven dry of step (1) is 8 ~ 12wt%.
The described algae raw material of step (1) dries the particle that rear pre-cut particle diameter is 5 ~ 10mm size.
When grinding in step (1) described planetary ball mill, revolution is 1:1.5 ~ 2 with the rotating ratio of rotation, and the mass ratio of algae raw material and abrading-ball is 1:8 ~ 12, and ball radius is 2 ~ 5mm.
Step (2) described maleic anhydride and cinnamic weight ratio are 1.5 ~ 1.6:1; The molar weight of described polyesteramide is 5 ~ 8% of maleic anhydride and cinnamic weight total amount.
The weight of the described algae powder of step (2) is 50 ~ 80 times of polyesteramide weight; The weight of described benzoyl peroxide is 10 ~ 30% of polyesteramide weight.
Step (2) described benzoyl peroxide can be replaced by the benzoyl peroxide tert-butyl ester or methylethyl ketone peroxide.
Step (2) described organic solvent is toluene, dimethyl phthalate or ethyl acetate; The weight of described organic solvent is 0.4 ~ 0.6 times of algae grain weight amount.
Step (3) described expanding material is ethene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-vinyl alcohol copolymer; Described lubricant is stearic acid, fatty acid ester, stearate calcium or ethylene bis stearic acid amide.
The melt blending temperature of step (3) described granulation is 120 ~ 150 DEG C, and screw speed is 150 ~ 180 revs/min.
The technique effect that the present invention is useful is:
Alga cells entirety is coupling in 3 D stereo network macromolecular structure by present method, the plastics compact structure obtained, every excellent in mechanical performance, and the bonding force between raw material is very strong, small molecules migration can not occur, avoid contaminate environment.
Embodiment
Below in conjunction with embodiment, the present invention is specifically described.
Embodiment 1
The invention provides a kind of method adopting algae to prepare plastics, concrete steps are as follows:
(1) blue-green algae salvaged from water is tentatively cleaned removal impurity post-drying, the water content after oven dry is 12wt%.After drying, pre-cut particle diameter is the particle of 10mm size, then puts into planetary ball mill and grinds, and crosses 600 mesh sieves.When grinding in planetary ball mill, revolution is 1:2 with the rotating ratio of rotation, and the mass ratio of algae raw material and abrading-ball is 1:12, and ball radius is 5mm.
(2) the algae powder 8kg be sieved and polyesteramide 0.1kg, maleic anhydride 0.77kg, vinylbenzene 0.48kg, benzoyl peroxide tert-butyl ester 30g are together added in 4.8kg toluene, under the condition vacuumizing and stir, be heated to 80 DEG C of reactions 5 hours, obtain pre-reaction liquid.
(3) in 7kg pre-reaction liquid, add 0.6kg expanding material and 0.5kg lubricant, by parallel dual-screw extruding machine extruding pelletization after mixing, obtain product, the melt blending temperature of granulation is 120 ~ 150 DEG C, and screw speed is 150 ~ 180 revs/min.Wherein expanding material is ethene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-vinyl alcohol copolymer; Lubricant is stearic acid, fatty acid ester, stearate calcium or ethylene bis stearic acid amide.
Embodiment 2
The invention provides a kind of method adopting algae to prepare plastics, concrete steps are as follows:
(1) common brown alga is tentatively cleaned removal impurity post-drying, the water content after oven dry is 10wt%.After drying, pre-cut particle diameter is the particle of 8mm size, then puts into planetary ball mill and grinds, and crosses 700 mesh sieves.When grinding in planetary ball mill, revolution is 1:1.8 with the rotating ratio of rotation, and the mass ratio of algae raw material and abrading-ball is 1:10, and ball radius is 3mm.
(2) the 5kg algae powder be sieved and 0.1kg polyesteramide, 1.2kg maleic anhydride, 0.8kg vinylbenzene, 10g benzoyl peroxide are together added in 2kg ethyl acetate, under the condition vacuumizing and stir, be heated to 40 DEG C of reactions 10 hours, obtain pre-reaction liquid.
(3) in 5kg pre-reaction liquid, add 0.3kg expanding material and 0.2kg lubricant, by parallel dual-screw extruding machine extruding pelletization after mixing, obtain product, the melt blending temperature of granulation is 120 ~ 150 DEG C, and screw speed is 150 ~ 180 revs/min.Wherein expanding material is ethene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-vinyl alcohol copolymer; Lubricant is stearic acid, fatty acid ester, stearate calcium or ethylene bis stearic acid amide.
Embodiment 3
The invention provides a kind of method adopting algae to prepare plastics, concrete steps are as follows:
(1) red algae of salvaging out in water is tentatively cleaned removal impurity post-drying, the water content after oven dry is 8wt%.After drying, pre-cut particle diameter is the particle of 5mm size, then puts into planetary ball mill and grinds, and crosses 800 mesh sieves.When grinding in planetary ball mill, revolution is 1:1.5 with the rotating ratio of rotation, and the mass ratio of algae raw material and abrading-ball is 1:8, and ball radius is 2mm.
(2) the 6kg algae powder be sieved and 0.1kg polyesteramide, 1.02kg maleic anhydride, 0.64kg vinylbenzene, 20g methylethyl ketone peroxide are together added in 3kg organic solvent, under the condition vacuumizing and stir, be heated to 60 DEG C of reactions 7 hours, obtain pre-reaction liquid.
(3) in 6kg weight part pre-reaction liquid, 0.4kg expanding material and 0.3kg lubricant is added, by parallel dual-screw extruding machine extruding pelletization after mixing, obtain product, the melt blending temperature of granulation is 120 ~ 150 DEG C, and screw speed is 150 ~ 180 revs/min.Wherein expanding material is ethene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-vinyl alcohol copolymer; Lubricant is stearic acid, fatty acid ester, stearate calcium or ethylene bis stearic acid amide.
Test case:
Embodiment 1 ~ 3 is obtained plastic grain detect according to national standard, performance is as shown in table 1.
Table 1
Can see from the data of table 1, plastic ink absorption rate prepared by the present invention is slightly high, and this is the cause owing to there are a lot of hydrogen bonds that algae brings in raw material; Thermal conductivity is higher, may be used for heat conduction field; Specific inductivity is less, has good insulating property; Although tensile strength is little compared with rigid plastics, in semi-rigid plastic, belong to larger scope; Modulus in flexure is lower, and these plastics are pliable and tough, bending resistance; Shock resistance fundamental sum rigid plastics maintains an equal level; Heat-drawn wire is lower, reason be plastics inner in a large number with Van der Waals force and hydrogen bonded, easily destroyed under heat effect; Melt index is higher, good fluidity after plastics are softening.
Claims (10)
1. adopt algae to prepare a method for plastics, it is characterized in that concrete steps are as follows:
(1) algae raw material is tentatively cleaned removal impurity post-drying, put into planetary ball mill and grind, cross 600 ~ 800 mesh sieves;
(2) the algae powder be sieved and polyesteramide, maleic anhydride, vinylbenzene, benzoyl peroxide are together added in organic solvent, under the condition vacuumizing and stir, be heated to 40 ~ 80 DEG C of reactions 5 ~ 10 hours, obtain pre-reaction liquid;
(3) in 50 ~ 70 weight part pre-reaction liquid, add 3 ~ 6 weight part expanding materials and 2 ~ 5 weight part lubricants, by parallel dual-screw extruding machine extruding pelletization after mixing, obtain product.
2. employing algae according to claim 1 prepares the method for plastics, it is characterized in that the water content after the described algae raw material oven dry of step (1) is 8 ~ 12wt%.
3. employing algae according to claim 1 prepares the method for plastics, it is characterized in that the described algae raw material of step (1) dries the particle that rear pre-cut particle diameter is 5 ~ 10mm size.
4. employing algae according to claim 1 prepares the method for plastics, when it is characterized in that grinding in step (1) described planetary ball mill, revolution is 1:1.5 ~ 2 with the rotating ratio of rotation, and the mass ratio of algae raw material and abrading-ball is 1:8 ~ 12, and ball radius is 2 ~ 5mm.
5. employing algae according to claim 1 prepares the method for plastics, it is characterized in that step (2) described maleic anhydride and cinnamic weight ratio are 1.5 ~ 1.6:1; The molar weight of described polyesteramide is 5 ~ 8% of maleic anhydride and cinnamic weight total amount.
6. employing algae according to claim 1 prepares the method for plastics, it is characterized in that the weight of the described algae powder of step (2) is 50 ~ 80 times of polyesteramide weight; The weight of described benzoyl peroxide is 10 ~ 30% of polyesteramide weight.
7. employing algae according to claim 1 prepares the method for plastics, it is characterized in that step (2) described benzoyl peroxide can be replaced by the benzoyl peroxide tert-butyl ester or methylethyl ketone peroxide.
8. employing algae according to claim 1 prepares the method for plastics, it is characterized in that step (2) described organic solvent is toluene, dimethyl phthalate or ethyl acetate; The weight of described organic solvent is 0.4 ~ 0.6 times of algae grain weight amount.
9. employing algae according to claim 1 prepares the method for plastics, it is characterized in that step (3) described expanding material is ethene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-vinyl alcohol copolymer; Described lubricant is stearic acid, fatty acid ester, stearate calcium or ethylene bis stearic acid amide.
10. employing algae according to claim 1 prepares the method for plastics, and it is characterized in that the melt blending temperature of step (3) described granulation is 120 ~ 150 DEG C, screw speed is 150 ~ 180 revs/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510736047.9A CN105331034A (en) | 2015-11-03 | 2015-11-03 | Method for preparing plastic from algae |
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| CN201510736047.9A CN105331034A (en) | 2015-11-03 | 2015-11-03 | Method for preparing plastic from algae |
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| CN105331034A true CN105331034A (en) | 2016-02-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023250207A1 (en) * | 2022-06-24 | 2023-12-28 | Polytechnic University Of Puerto Rico | Novel sargassum-based polymer composite filaments for 3d printing and method of making the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116363A1 (en) * | 2010-03-19 | 2011-09-22 | E2E Materials, Inc. | Biodegradable resin composites |
| EP2392543A1 (en) * | 2010-06-02 | 2011-12-07 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Feedback active coatings with sensitive containers based on nano-, micro-, mini-, and macroemulsions of direct or reversed type |
| CN105001489A (en) * | 2015-07-10 | 2015-10-28 | 无锡太湖蓝藻资源应用技术研究院有限公司 | Bio-based polyolefin composite material and preparation method therefor |
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2015
- 2015-11-03 CN CN201510736047.9A patent/CN105331034A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011116363A1 (en) * | 2010-03-19 | 2011-09-22 | E2E Materials, Inc. | Biodegradable resin composites |
| EP2392543A1 (en) * | 2010-06-02 | 2011-12-07 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Feedback active coatings with sensitive containers based on nano-, micro-, mini-, and macroemulsions of direct or reversed type |
| CN105001489A (en) * | 2015-07-10 | 2015-10-28 | 无锡太湖蓝藻资源应用技术研究院有限公司 | Bio-based polyolefin composite material and preparation method therefor |
Non-Patent Citations (1)
| Title |
|---|
| 王广文，等: "《塑料配方设计》", 31 July 2004, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023250207A1 (en) * | 2022-06-24 | 2023-12-28 | Polytechnic University Of Puerto Rico | Novel sargassum-based polymer composite filaments for 3d printing and method of making the same |
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Application publication date: 20160217 |
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