CN104962094A - Rice husk fiber and polylactic acid synthesized resin particle and production method thereof - Google Patents
Rice husk fiber and polylactic acid synthesized resin particle and production method thereof Download PDFInfo
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- CN104962094A CN104962094A CN201510320191.4A CN201510320191A CN104962094A CN 104962094 A CN104962094 A CN 104962094A CN 201510320191 A CN201510320191 A CN 201510320191A CN 104962094 A CN104962094 A CN 104962094A
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Abstract
The invention relates to a rice husk fiber and polylactic acid synthesized resin particle, which comprises the following raw materials by weight: 2-10 parts of rice husk, 1-5 parts of cellulose, 1-3 parts of water, 1-5 parts of polylactic acid, and 2-10 parts of starch. The specific production method includes the steps of: firstly grinding the rice husk into rice husk powder, then putting the powder into a high mixing machine, adding water and cellulose and mixing the materials evenly; in addition, putting polylactic acid and starch into a reaction kettle, firstly conducting heating and stirring the materials evenly, then performing cooling, and adding the rice husk fiber powder into a reaction kettle and further performing stirring to obtain a pasty material; and finally injecting the material into a screw extruder, and carrying out screw extrusion drawing to obtain golden yellow strips. The finished product injection molded from the rice husk fiber and polylactic acid synthesized resin particle has the characteristics of hardness, high density, no toxicity, low cost, environmental protection and the like, can degrade into organic fertilizers in nature by itself, also has more meticulous and exquisite appearance, and has good toughness, is more drop resistant, and has prolonged service life.
Description
Technical field
The present invention relates to chemical material field, what be specifically related to is a kind of rice hull cellulose and poly(lactic acid) pellets of synthetic resins and production method thereof.
Background technology
The existing daily necessities such as tableware, furniture, kitchen tools on the market all adopts the product such as plastics, wood, bamboo, this type of product cost is high, can not degrade, not environmentally, wherein plastics not only can not be degraded, be acknowledged as " white pollution ", and the water-permeable of spoiled soil, and wooden series products wants deforestation, having contaminated wastewater in manufacturing processed, is not good environment-friendly materials.
China is the first Chan Dao big country in the world, annual production about 1.95 hundred million tons, account for 40% of national total output of grain, account for 37% of world's paddy ultimate production, the overburden amount of annual rice husk reaches tens million of ton, and rice husk itself is a kind of agricultural waste, it is only used as fuel, feed weighting material in vast rural area, for a long time, owing to being in a backward condition to the utilization of rice husk, the significant wastage of rice husk resource is caused.
Chinese invention patent (Authorization Notice No. CN10690524, authorized announcement date 2014.09.10) discloses a kind of rice hull cellulose synthetic resin powder, this synthetic resin powder has the characteristics such as hard, high-density, nontoxic, low cost, environmental protection, in large nature, organic fertilizer can be degraded into voluntarily again, there are wide market outlook.Although this synthetic resin powder realizes extensive widespread use rice husk; but this resin-oatmeal is in powdery; what shaping corresponding finished product adopted is be made up of high temperature pressing mold machine; high temperature pressing mold is loaded by powder in special die cavities; by stamping to powder extrusion forming; the finished product relative coarseness made by pressing mold, also easily broken, have a strong impact on its work-ing life.
Summary of the invention
The object of the invention is to solve the problems of the prior art, provide a kind of technique simple, easily degraded, steady quality, cost is low, hardness is high, the high temperature resistant and rice hull cellulose of environmental protection and poly(lactic acid) pellets of synthetic resins and production method thereof.
The technical solution adopted in the present invention is such: a kind of rice hull cellulose and poly(lactic acid) pellets of synthetic resins, comprise the raw material of following parts by weight: rice husk 2-10 part, Mierocrystalline cellulose 1-5 part, water 1-3 part, poly(lactic acid) 1-5 part, starch 2-10 part.
Preferably, described poly(lactic acid) is with W-Gum, waxy corn starch, high waxy starch, tapioca (flour), and horse makes sweet potato starch, the poly(lactic acid) that in amylopectin, amylose starch, one or more are made as raw material.
Preferably, described rice husk is 10 parts, Mierocrystalline cellulose is 3 parts, water is 3 parts, poly(lactic acid) is 2 parts, starch is 5 parts.
Preferably, described rice husk is 2 parts, Mierocrystalline cellulose is 1 part, water is 1 part, poly(lactic acid) is 5 parts, starch is 10 parts.
Preferably, described rice husk is 5 parts, Mierocrystalline cellulose is 3 parts, water is 2 parts, poly(lactic acid) is 1 part, starch is 2 parts.
A production method for rice hull cellulose and poly(lactic acid) pellets of synthetic resins, is characterized in that: comprise the following steps:
(1), rice husk is ground to form 50-300 object molecule powdered rice hulls;
(2), by the powdered rice hulls of step (1) put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, then taking out cooling, make rice hull cellulose powder;
(3), by poly(lactic acid) and starch put into reactor, heat after stirring to 150-220 ° of C, by still temperature drop to 120 ° below C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into bar by Screw Extrusion wire drawing, described bar is in golden yellow;
(5), by the bar of step (4) cool, packing and storing after pelletizing.
Preferably, described in step (2), rice hull cellulose powder water ratio is no more than 10%.
Preferably, the mixing temperature in described step (2) is 50-200 ° of C.
Preferably, the storing temp in described step (5) is 15-35 ° of C.
By adopting preceding solution, the invention has the beneficial effects as follows:
The present invention makes full use of rice husk residue as starting material, to reach the object turned waste into wealth, and reduce the pollution of rice husk to environment, promote its by-product value, product of the present invention has superpower water tolerance, but also have hard, high-density, smooth, nontoxic, low cost, the characteristics such as environmental protection, tableware can be made into, toy, furniture, kitchen tools, bath articles, wrapping material etc. one replace plastics, wood, the wasting of resources of the classes such as bamboo, organic fertilizer can be degraded into voluntarily again in large nature, back to nature, product manufactured by it is resistance to freezing, high temperature resistant, intensity, the all Canons of density and hardness, long service life, it is a kind of material of extremely environmental protection, there are wide market outlook.
And poly(lactic acid) (PLA) is a kind of novel biodegradable material, use W-Gum, high waxy starch, tapioca (flour), horse makes sweet potato starch, and amylopectin, amylose starch are made as raw material; Starch material obtains glucose via saccharification, then makes highly purified lactic acid by glucose and certain strain fermentation, then synthesizes the poly(lactic acid) of certain molecular weight by chemical synthesis process.Poly(lactic acid) has good mechanical property and physicals and the best tensile strength and extensibility.The present invention is adopting rice husk as the while of raw-material, add poly(lactic acid), again by screw extrusion press obtained in granular rice hull cellulose and poly(lactic acid) pellets of synthetic resins, directly can adopt this particle injection moulding, shaping finished product has outside high-strength hardness, face shaping is more careful, exquisite, and has good toughness, not easily broken.
Embodiment
Describe the present invention particularly with embodiment below, scope of the present invention is not by the restriction of embodiment.
embodiment 1
By following parts by weight configuration raw material: described rice husk is 10 parts, Mierocrystalline cellulose is 3 parts, water is 3 parts, poly(lactic acid) is 2 parts, starch is 5 parts.Described poly(lactic acid) obtains glucose by W-Gum saccharification, then make highly purified lactic acid by glucose and certain strain fermentation, then obtained by chemical synthesis process synthesis certain molecular weight.
Concrete production method step is as follows:
(1), rice husk is ground to form 50 object molecule powdered rice hulls;
(2), the powdered rice hulls of step (1) is put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, wherein the temperature of hybird environment is 50 DEG C, then takes out cooling, make rice hull cellulose powder, wherein the water content of this rice hull cellulose powder must not more than 10%;
(3), by poly(lactic acid) and starch put into reactor, after the 150 ° of C that heat stir, by still temperature drop to 120 ° C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into golden yellow bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing, the temperature of storage environment is 15-35 DEG C.
First start injection moulding machine, mould temperature is heated to 80-250 ° of C, and its screw speed is adjusted to 20-150rpm speed control by frequency variations, then rice hull cellulose and poly(lactic acid) pellets of synthetic resins are extruded in injection mould by weight needed for product the locked mode that pressurizes, after formed product cooling, its taking-up can be obtained tableware soupspoon.
embodiment 2
By following parts by weight configuration raw material: described rice husk is 2 parts, Mierocrystalline cellulose is 1 part, water is 1 part, poly(lactic acid) is 5 parts, starch is 10 parts.Described poly(lactic acid) obtains glucose by yam starch saccharification, then make highly purified lactic acid by glucose and certain strain fermentation, then obtained by chemical synthesis process synthesis certain molecular weight.
Concrete production method step is as follows:
(1), rice husk is ground to form 200 object molecule powdered rice hulls;
(2), the powdered rice hulls of step (1) is put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, wherein the temperature of hybird environment is 100 DEG C, then takes out cooling, make rice hull cellulose powder, wherein the water content of this rice hull cellulose powder must not more than 10%;
(3), by poly(lactic acid) and starch put into reactor, after the 220 ° of C that heat stir, by still temperature drop to 100 ° C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into golden yellow bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing, the temperature of storage environment is 15-35 DEG C.
First start injection moulding machine, mould temperature is heated to 80-250 ° of C, and its screw speed is adjusted to 20-150rpm speed control by frequency variations, then rice hull cellulose and poly(lactic acid) pellets of synthetic resins are extruded in injection mould by weight needed for product the locked mode that pressurizes, after formed product cooling, its taking-up can be obtained tableware plate.
embodiment 3
By following parts by weight configuration raw material: described rice husk is 5 parts, Mierocrystalline cellulose is 3 parts, water is 2 parts, poly(lactic acid) is 1 part, starch is 2 parts.Described poly(lactic acid) obtains glucose by tapioca (flour) saccharification, then make highly purified lactic acid by glucose and certain strain fermentation, then obtained by chemical synthesis process synthesis certain molecular weight.
Concrete production method step is as follows:
(1), rice husk is ground to form 150 object molecule powdered rice hulls;
(2), the powdered rice hulls of step (1) is put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, wherein the temperature of hybird environment is 150 DEG C, then takes out cooling, make rice hull cellulose powder, wherein the water content of this rice hull cellulose powder must not more than 10%;
(3), by poly(lactic acid) and starch put into reactor, after the 200 ° of C that heat stir, by still temperature drop to 80 ° C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into golden yellow bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing, the temperature of storage environment is 15-35 DEG C.
First start injection moulding machine, mould temperature is heated to 80-250 ° of C, and its screw speed is adjusted to 20-150rpm speed control by frequency variations, then rice hull cellulose and poly(lactic acid) pellets of synthetic resins are extruded in injection mould by weight needed for product the locked mode that pressurizes, after formed product cooling, its taking-up can be obtained tableware soupspoon.
embodiment 4
By following parts by weight configuration raw material: described rice husk is 8 parts, Mierocrystalline cellulose is 5 parts, water is 1 part, poly(lactic acid) is 5 parts, starch is 8 parts.Described poly(lactic acid) obtains glucose by amylopectin saccharification, then make highly purified lactic acid by glucose and certain strain fermentation, then obtained by chemical synthesis process synthesis certain molecular weight.
Concrete production method step is as follows:
(1), rice husk is ground to form 160 object molecule powdered rice hulls;
(2), the powdered rice hulls of step (1) is put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, wherein the temperature of hybird environment is 200 DEG C, then takes out cooling, make rice hull cellulose powder, wherein the water content of this rice hull cellulose powder must not more than 10%;
(3), by poly(lactic acid) and starch put into reactor, after the 210 ° of C that heat stir, by still temperature drop to 120 ° C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into golden yellow bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing, the temperature of storage environment is 15-35 DEG C.
First start injection moulding machine, mould temperature is heated to 80-250 ° of C, and its screw speed is adjusted to 20-150rpm speed control by frequency variations, then rice hull cellulose and poly(lactic acid) pellets of synthetic resins are extruded in injection mould by weight needed for product the locked mode that pressurizes, after formed product cooling, its taking-up can be obtained kitchen utensils chopping block.
embodiment 5
By following parts by weight configuration raw material: described rice husk is 6 parts, Mierocrystalline cellulose is 2 parts, water is 2 parts, poly(lactic acid) is 3 parts, starch is 6 parts.Described poly(lactic acid) obtains glucose by amylopectin saccharification, then make highly purified lactic acid by glucose and certain strain fermentation, then obtained by chemical synthesis process synthesis certain molecular weight.
Concrete production method step is as follows:
(1), rice husk is ground to form 120 object molecule powdered rice hulls;
(2), the powdered rice hulls of step (1) is put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, wherein the temperature of hybird environment is 160 DEG C, then takes out cooling, make rice hull cellulose powder, wherein the water content of this rice hull cellulose powder must not more than 10%;
(3), by poly(lactic acid) and starch put into reactor, after the 190 ° of C that heat stir, by still temperature drop to 120 ° below C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into golden yellow bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing, the temperature of storage environment is 15-35 DEG C.
First start injection moulding machine, mould temperature is heated to 80-250 ° of C, and its screw speed is adjusted to 20-150rpm speed control by frequency variations, then rice hull cellulose and poly(lactic acid) pellets of synthetic resins are extruded in injection mould by weight needed for product the locked mode that pressurizes, after formed product cooling, its taking-up can be obtained kitchen utensils chopping block.
Claims (9)
1. rice hull cellulose and a poly(lactic acid) pellets of synthetic resins, comprises the raw material of following parts by weight: rice husk 2-10 part, Mierocrystalline cellulose 1-5 part, water 1-3 part, poly(lactic acid) 1-5 part, starch 2-10 part.
2. rice hull cellulose and poly(lactic acid) pellets of synthetic resins according to claim 1, is characterized in that: described poly(lactic acid) is with W-Gum, waxy corn starch, high waxy starch, tapioca (flour), yam starch, the poly(lactic acid) that in amylopectin, amylose starch, one or more are made as raw material.
3. described rice hull cellulose and poly(lactic acid) pellets of synthetic resins according to claim 1, is characterized in that: described rice husk is 10 parts, Mierocrystalline cellulose is 3 parts, water is 3 parts, poly(lactic acid) is 2 parts, starch is 5 parts.
4. described rice hull cellulose and poly(lactic acid) pellets of synthetic resins according to claim 1, is characterized in that: described rice husk is 2 parts, Mierocrystalline cellulose is 1 part, water is 1 part, poly(lactic acid) is 5 parts, starch is 10 parts.
5. described rice hull cellulose and poly(lactic acid) pellets of synthetic resins according to claim 1, is characterized in that: described rice husk is 5 parts, Mierocrystalline cellulose is 3 parts, water is 2 parts, poly(lactic acid) is 1 part, starch is 2 parts.
6. the production method of rice hull cellulose and poly(lactic acid) pellets of synthetic resins according to any one of claim 1-5, is characterized in that: comprise the following steps:
(1), rice husk is ground to form 50-300 object molecule powdered rice hulls;
(2), by the powdered rice hulls of step (1) put in high temperature and high speed mixing machine, add Mierocrystalline cellulose and inject water in mixing process, then taking out cooling, make rice hull cellulose powder;
(3), by poly(lactic acid) and starch put into reactor, heat after stirring to 150-220 ° of C, by still temperature drop to 120 ° below C, then the rice hull cellulose powder of step (2) is added reactor continuation stirring, material stirring is pasty material uniformly;
(4), by the pasty material of step (3) directly inject screw extrusion press, be made into bar by Screw Extrusion wire drawing;
(5), by the bar of step (4) cool, packing and storing after pelletizing.
7. the production method of rice hull cellulose according to claim 6 and poly(lactic acid) pellets of synthetic resins, is characterized in that: described in step (2), rice hull cellulose powder water ratio is no more than 10%.
8. rice hull cellulose according to claim 6 and poly(lactic acid) pellets of synthetic resins production method, is characterized in that: the mixing temperature in described step (2) is 50-200 ° of C.
9. the production method of rice hull cellulose according to claim 6 and poly(lactic acid) pellets of synthetic resins, is characterized in that: the storing temp in described step (5) is 15-35 ° of C.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106751984A (en) * | 2016-11-22 | 2017-05-31 | 广州简米餐具有限公司 | The preparation method of stalk rice hull cellulose synthetic resin powder and product |
| CN107385540A (en) * | 2017-06-30 | 2017-11-24 | 常州达奥新材料科技有限公司 | A kind of preparation method of fishing biodegradable fiber material |
| CN111531996A (en) * | 2020-04-29 | 2020-08-14 | 江门市玛斯特包装有限公司 | Degradable transparent bag and preparation method thereof |
| CN112251042A (en) * | 2020-10-21 | 2021-01-22 | 沅陵县顺华玩具制造有限公司 | Resin material toy and manufacturing method thereof |
| CN112251034A (en) * | 2020-10-21 | 2021-01-22 | 沅陵县顺华玩具制造有限公司 | Novel environment-friendly material for toy manufacturing and preparation method |
| CN113226755A (en) * | 2018-09-01 | 2021-08-06 | 塑拉帕克公司 | Compostable wood composites |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111531996A (en) * | 2020-04-29 | 2020-08-14 | 江门市玛斯特包装有限公司 | Degradable transparent bag and preparation method thereof |
| CN112251042A (en) * | 2020-10-21 | 2021-01-22 | 沅陵县顺华玩具制造有限公司 | Resin material toy and manufacturing method thereof |
| CN112251034A (en) * | 2020-10-21 | 2021-01-22 | 沅陵县顺华玩具制造有限公司 | Novel environment-friendly material for toy manufacturing and preparation method |
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Effective date of registration: 20160504 Address after: 361000 building, North building, Weiye building, pioneer zone, torch hi tech Zone, Xiamen, Fujian Applicant after: Xiamen Husk's New Material Technology Co., Ltd. Address before: 362000 Creek Industrial Zone, town, Luojiang District, Fujian, Quanzhou Applicant before: Zhuang Zhanpeng |
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Application publication date: 20151007 |