CN102219985A - Non staple food grain vegetable starch modified full-biodegradable dedicated resin and preparation method of dedicated resin - Google Patents
Non staple food grain vegetable starch modified full-biodegradable dedicated resin and preparation method of dedicated resin Download PDFInfo
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Abstract
The invention discloses non staple food grain vegetable starch modified full-biodegradable dedicated resin; firstly, non staple food grain vegetable starch is dehydrated and dried, and then 100 parts of the dried non staple food grain vegetable starch is added in 22-30 parts of moist dextrinizing agents to enable the starch to be moistened, soaked and dextrinized, and then 20-30 parts of compatilizers, 0-2 parts of chain extenders, 2-15 parts of open agents, 0-100 parts of polylactic acid, and 150-250 parts of a full-biodegradable binary acid-dihydric alcohol copolymer are added for uniformly mixing, and then the mixture is fed into a dual-screw dual-exhaust extrusion granulation unit or a dual-screw dual-exhaust extrusion tabletting unit for extrusion granulation or tabletting under proper temperature and pressure, so as to prepare the non staple food grain vegetable starch modified full-biodegradable dedicated resin or sheets. The non staple food grain vegetable starch modified full-biodegradable dedicated resin has a full-biodegradable function, and can be decomposed into carbon dioxide and water after being wasted, and can be dissolved by environment rapidly.
Description
Technical field
It is resin dedicated and preparation method thereof to the present invention relates to the full biological decomposition of a kind of non-staple food grain plant amylum modification.
Background technology
China's biological degradation plastics is started late, the development of especially full biological decomposition resin is very few, in recent years, the Shanghai petrochemical industry is only arranged, prosperous rich medicine company, Haizheng Pharmaceutical Co, with several families such as Xinghua worker at the full biological decomposition resin of research and development, what the Shanghai petrochemical industry was researched and developed is the multipolymer of Succinic Acid-butyleneglycol-terephthalic acid, what prosperous rich medicine company was researched and developed is the multipolymer of Succinic Acid-butyleneglycol-adipic acid, what Haizheng Pharmaceutical Co was researched and developed is the polymkeric substance of lactic acid, with Xinghua worker research and development be the multipolymer of Succinic Acid-butyleneglycol, these full biological decomposition resins all exist the cost height, output is low, and the problem that price is high is difficult to obtain promotion and application.
Summary of the invention
In order to overcome above-mentioned defective, it is resin dedicated and preparation method thereof to the invention provides the full biological decomposition of the low non-staple food grain plant amylum modification of a kind of cost.
The present invention for the technical scheme that solves its technical problem and adopt is: the full biological decomposition of a kind of non-staple food grain plant amylum modification is resin dedicated, and its raw material is formed and comprised following component and ratio of weight and number:
100 parts of non-staple food grain plant amylums, 22～30 parts of moistening paste agents, 20～30 parts of compatilizers, 0～2 part of chainextender, 2～15 parts of opening agent, 0～100 part of poly(lactic acid) can complete biolytic diprotic acid divalent alcohol copolymers 150～250 parts.
As a further improvement on the present invention, non-staple food grain plant amylum is the composition of a kind of in tapioca (flour), green starch, sweet potato starch, sweet potato starch, yam starch, water caltrop starch or the Rhizoma Nelumbinis starch or two kinds.
As a further improvement on the present invention, moistening paste agent is a kind of in glycerol, glycol ether and the ethylene glycol.
As a further improvement on the present invention, compatilizer is a kind of in sorbyl alcohol, Xylitol and the N.F,USP MANNITOL.
As a further improvement on the present invention, chainextender is a kind of in ADR-4268CS type and the ADR-4370 type chainextender.
As a further improvement on the present invention, the opening agent is agent of silicon-dioxide opening or the agent of titanium dioxide opening.
As a further improvement on the present invention, poly(lactic acid) is the polymkeric substance that the microbial method fermentation generates lactic acid.
As a further improvement on the present invention, can complete biolytic diprotic acid divalent alcohol copolymers be the composition of a kind of in Succinic Acid-butyleneglycol-adipic acid multipolymer, Succinic Acid-butyleneglycol-terephthaldehyde's acid copolymer, the butyleneglycol-adipic acid-terephthaldehyde's acid copolymer or two kinds.
The resin dedicated preparation method of full biological decomposition of a kind of non-staple food grain plant amylum modification, it comprises the steps:
(1) starts the heat drying agitator kettle, under 138 ℃ of pot bodies, a kind of in tapioca (flour) or green starch or sweet potato starch or sweet potato starch or yam starch or the non-staple food grain plant amylums such as water caltrop starch or Rhizoma Nelumbinis starch or two kinds are dropped in the agitator kettle, stirred 30 minutes, after these non-staple food grain plant amylums are heated that contained water evaporates is clean, become dry powder, when material temperature rise to 145 ℃, put dry mash enter cold pot stir be cooled to below 50 ℃ after, blowing pack sealing is stand-by;
(2) get dried non-staple food grain plant amylum and add 22～30 parts of mixings of moistening paste agent for 100 parts; Starch is soaked soak into gelatinization and then add 20～30 parts of compatilizers; 0～2 part of chainextender; 2～15 parts of opening agent; 0～100 part of poly(lactic acid); can mix for 150～250 parts by complete biolytic diprotic acid divalent alcohol copolymers; the double gas of input twin screw extrudes in the grain-making machine group or the double gas of twin screw is extruded extruding pelletization or compressing tablet in the compressing tablet unit, makes the resin dedicated or sheet material of the full biological decomposition of non-staple food grain plant amylum modification.
As a further improvement on the present invention, opening agent described in the step (2) is agent of silicon-dioxide opening or the agent of titanium dioxide opening, the preparation of silicon-dioxide opening agent: get 100 ㎏ (1250～3000 order) silicon dioxide powder and drop in the high cold mixed pot, be stirred to material temperature rise to 105 ℃, drop into 2 ㎏ aluminate coupling agents, restir is during to material temperature rise to 115 ℃, drop into the hard ester acid of 1.5 ㎏, restir is put into cold mixed pot during to material temperature rise to 125 ℃, drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃, stir, take the dish out of the pot after ten minutes, drop into and to extrude air-cooled tie rod pelletizing pack in the dual-screw pelletizer group, the agent of silicon-dioxide opening;
The preparation of titanium dioxide opening agent: get 100 ㎏ (1250～3000 order) titanium dioxide powder and drop in the high cold mixed pot; be stirred to material temperature rise to 105 ℃; drop into 2 ㎏ titanate coupling agents; restir is during to material temperature rise to 115 ℃; drop into the hard ester acid of 1.5 ㎏; restir is put into cold mixed pot during to material temperature rise to 125 ℃; drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃; stir; take the dish out of the pot after ten minutes; drop into and to extrude air-cooled tie rod pelletizing pack in the dual-screw pelletizer group, the agent of titanium dioxide opening.
The invention has the beneficial effects as follows: the present invention has used non-staple food grain plant amylum; make the existing complete biolytic function of institute's product that obtains; can play the effect of environment protection again; it is free from environmental pollution to degrade voluntarily after discarded; can also play substitution of resources; alleviate exhausted day by day petroleum resources; on the other hand; it has also supported agriculture production; for the non-staple food grain plant amylum in rural area has found new market, it still is a low-carbon economy simultaneously, has promoted Chinese national economy and social sustainable development; meet the requirement of national energy development strategy and Energy restructuring target, meet the requirement of current construction " resource-conserving; friendly environment society ".
Embodiment
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used to explain the present invention, do not constitute the qualification to protection domain of the present invention.
It is resin dedicated that the present invention proposes the full biological decomposition of a kind of non-staple food grain plant amylum modification, and its raw material is formed and comprised following component and ratio of weight and number:
100 parts of non-staple food grain plant amylums, 22～30 parts of moistening paste agents, 20～30 parts of compatilizers, 0～2 part of chainextender, 2～15 parts of opening agent, 0～100 part of poly(lactic acid) can complete biolytic diprotic acid divalent alcohol copolymers 150～250 parts.
Wherein, non-staple food grain plant amylum is the composition of a kind of in tapioca (flour), green starch, sweet potato starch, sweet potato starch, yam starch, water caltrop starch or the Rhizoma Nelumbinis starch or two kinds.
Wherein, moistening paste agent is a kind of in glycerol, glycol ether and the ethylene glycol.
Wherein, compatilizer is a kind of in sorbyl alcohol, Xylitol and the N.F,USP MANNITOL.
Wherein, chainextender is a kind of in ADR-4268CS type and the ADR-4370 type chainextender.
Wherein, the opening agent is agent of homemade superfine silicon dioxide opening or the agent of homemade superfine titanic oxide opening.
Wherein, poly(lactic acid) is the polymkeric substance that the microbial method fermentation generates lactic acid.
Wherein, can complete biolytic diprotic acid divalent alcohol copolymers be a kind of in Succinic Acid-butyleneglycol-adipic acid multipolymer, Succinic Acid-butyleneglycol-terephthaldehyde's acid copolymer, the butyleneglycol-adipic acid-terephthaldehyde's acid copolymer or two kinds.
The resin dedicated preparation method of full biological decomposition of non-staple food grain plant amylum of the present invention modification, it comprises the steps:
(1) starts the heat drying agitator kettle, under 138 ℃ of pot bodies, a kind of in tapioca (flour) or green starch or sweet potato starch or sweet potato starch or yam starch or the non-staple food grain plant amylums such as water caltrop starch or Rhizoma Nelumbinis starch or two kinds are dropped in the agitator kettle, high-speed stirring 30 minutes, after these non-staple food grain plant amylums are heated that contained water evaporates is clean, become dry powder, when material temperature rise to 145 ℃, put dry mash enter cold pot stir be cooled to below 50 ℃ after, blowing pack sealing is stand-by;
(2) get dried non-staple food grain plant amylum and add 22～30 parts of mixings of moistening paste agent for 100 parts; Starch is soaked soak into gelatinization and then add 20～30 parts of compatilizers; 0～2 part of chainextender; 2～15 parts of opening agent; 0～100 part of poly(lactic acid); can mix for 150～250 parts by complete biolytic diprotic acid divalent alcohol copolymers; drop into the double gas of twin screw and extrude in the grain-making machine group or the double gas of twin screw is extruded in the compressing tablet unit extruding pelletization or compressing tablet under suitable temperature and pressure, make the resin dedicated or sheet material of the full biological decomposition of non-staple food grain plant amylum modification.
Wherein, step (2) split shed agent is self-control superfine silicon dioxide opening agent or the agent of self-control superfine titanic oxide opening, the preparation of self-control superfine silicon dioxide opening agent: get 100 ㎏ (1250～3000 order) superfine silicon dioxide powder and drop in the high cold mixed pot, high-speed stirring is to material temperature rise to 105 ℃, drop into 2 ㎏ aluminate coupling agents, when high-speed stirring is to material temperature rise to 115 ℃ again, drop into the hard ester acid of 1.5 ㎏, put into cold mixed pot when high-speed stirring is to material temperature rise to 125 ℃ again, drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃, stir, take the dish out of the pot after about ten minutes, drop into and to extrude air-cooled tie rod pelletizing pack in the TE75 type dual-screw pelletizer group, the agent of self-control superfine silicon dioxide opening;
The preparation of self-control superfine titanic oxide opening agent: get 100 ㎏ (1250～3000 order) superfine titanic oxide powder and drop in the high cold mixed pot; high-speed stirring is to material temperature rise to 105 ℃; drop into 2 ㎏ titanate coupling agents; when high-speed stirring is to material temperature rise to 115 ℃ again; drop into the hard ester acid of 1.5 ㎏; put into cold mixed pot when high-speed stirring is to material temperature rise to 125 ℃ again; drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃; stir; take the dish out of the pot after about ten minutes; drop into and to extrude air-cooled tie rod pelletizing pack in the TE75 type dual-screw pelletizer group, the agent of self-control superfine titanic oxide opening.
Embodiment one: tapioca (flour) 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer; slowly drop into glycerol 25 ㎏ after the starting; stir after five minutes; to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush; restir two minutes; starch is soaked fully to be soaked into; thereafter drop into sorbyl alcohol 25 ㎏; ADR-4370 type chainextender 1 ㎏; self-control superfine silicon dioxide opening agent 10 ㎏, Succinic Acid-butyleneglycol-adipic acid multipolymer 200 ㎏ stir, take the dish out of the pot after about ten minutes; drop in the TE75 type dual-screw pelletizer group and extrude air-cooled tie rod pelletizing
Table one: dual-screw pelletizer group technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 200A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is adjusted the tie rod pulling speed and is about 25 meters/minute at 220 rev/mins, after extruding tie rod and meeting required size requirements, tie rod is filled in be cut into cylindric particle of uniform size in the dicing machine.The metering pack packs again, and it is resin dedicated to make it to become the full biological decomposition of blown film level with full biological decomposition function.Then this pellet is poured in the inflation film manufacturing machine, between about 130～150 ℃ of the control blown film temperature, between the control blow-up ratio about 2～4, make its blow molding be can be complete biolytic tube film, again this film is sent into that just can make in the bag machine can complete biolytic film bag product.
Embodiment two: sweet potato starch 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer, slowly drop into glycol ether 30 ㎏ after the starting, stir after five minutes, to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush, restir two minutes, starch is soaked fully to be soaked into, thereafter drop into N.F,USP MANNITOL 22 ㎏, ADR-4268CS type chainextender 2 ㎏, self-control superfine titanic oxide opening agent 5 ㎏, poly(lactic acid) 50 ㎏, Succinic Acid-butyleneglycol-terephthalic acid copolymer 1 50 ㎏ stir, take the dish out of the pot after about ten minutes, drop in the 75 type twin screw sheet material machine hoppers and extrude compressing tablet
Table two: twin screw sheet material unit technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 200A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is at 220 rev/mins, adjust gap between two calendering rods according to the thickness that will produce product, adjust calendering rod pulling speed and be respectively 23 meters/minute, 23.1 rice/minute, 23.2 rice/minute, 23.3 rice/minute, adjust T mould die gap, control sheet material transverse thick thinness deviation is between ± 0.02 mm.Intact in the extrusion sheet adjustment, after conforming to quality requirements, in the last item,, form the biodegradable sheet material in just entering during forcing machine extruding sheet molten mass through the typing of extruding postcooling.Again this sheet material is carried out plastic uptake or towards moulding, makes it to become the biodegradable packaging vessel according to required product mold.
Embodiment three: yam starch 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer; slowly drop into hexylene glycol 22 ㎏ after the starting; stir after five minutes; to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush; restir two minutes; starch is soaked fully to be soaked into; thereafter drop into Xylitol 25 ㎏; ADR-4370 type chainextender 1 ㎏; self-control superfine silicon dioxide opening agent 10 ㎏, butyleneglycol-adipic acid-terephthalic acid 250 ㎏ stir, take the dish out of the pot after about ten minutes; drop in the TE75 type dual-screw pelletizer group and extrude air-cooled tie rod pelletizing
Table three: dual-screw pelletizer group technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 220A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is adjusted the tie rod pulling speed and is about 25 meters/minute at 220 rev/mins, after extruding tie rod and meeting required size requirements, tie rod is filled in be cut into cylindric particle of uniform size in the dicing machine.The metering pack packs again, and it is resin dedicated to make it to become the full biological decomposition of blown film level with full biological decomposition function.Then this pellet is poured in the inflation film manufacturing machine, between about 130～150 ℃ of the control blown film temperature, between the control blow-up ratio about 2～4, make its blow molding be can be complete biolytic tube film, again this film is sent into that just can make in the bag machine can complete biolytic film bag product.
Embodiment four: sweet potato starch 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer, slowly drop into glycerol 26 ㎏ after the starting, stir after five minutes, to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush, restir two minutes, starch is soaked fully to be soaked into, thereafter drop into sorbyl alcohol 22 ㎏, ADR-4268CS type chainextender 2 ㎏, self-control superfine titanic oxide opening agent 8 ㎏, poly(lactic acid) 80 ㎏, Succinic Acid-butyleneglycol-terephthalic acid copolymer 1 80 ㎏ stir, take the dish out of the pot after about ten minutes, drop in the 75 type twin screw sheet material machine hoppers and extrude compressing tablet
Table four: twin screw sheet material unit technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 200A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is at 220 rev/mins, adjust gap between two calendering rods according to the thickness that will produce product, adjust calendering rod pulling speed and be respectively 23 meters/minute, 23.1 rice/minute, 23.2 rice/minute, 23.3 rice/minute, adjust T mould die gap, control sheet material transverse thick thinness deviation is between ± 0.02 mm.Intact in the extrusion sheet adjustment, after conforming to quality requirements, in the last item,, form the biodegradable sheet material in just entering during forcing machine extruding sheet molten mass through the typing of extruding postcooling.Again this sheet material is carried out plastic uptake or towards moulding, makes it to become the biodegradable packaging vessel according to required product mold.
Embodiment five: tapioca (flour) 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer; slowly drop into glycerol 28 ㎏ after the starting; stir after five minutes; to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush; restir two minutes; starch is soaked fully to be soaked into; thereafter drop into sorbyl alcohol 20 ㎏; ADR-4268CS type chainextender 2 ㎏, self-control superfine silicon dioxide opening agent 2 ㎏, poly(lactic acid) 100 ㎏; Succinic Acid-butyleneglycol-adipic acid copolymer 1 50 ㎏ stir; take the dish out of the pot after about ten minutes, drop in the TE75 type dual-screw pelletizer group and extrude air-cooled tie rod pelletizing
Table five: dual-screw pelletizer group technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 200A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is adjusted the tie rod pulling speed and is about 25 meters/minute at 220 rev/mins, after extruding tie rod and meeting required size requirements, tie rod is filled in be cut into cylindric particle of uniform size in the dicing machine.The metering pack packs again, and it is resin dedicated to make it to become the full biological decomposition of the injection grade with full biological decomposition function.Then this pellet is poured in the injection moulding machine, between about 140～160 ℃ of the injection temperature of control, made corresponding injection-molded item.
Embodiment six: yam starch 100 ㎏ that get behind the aforementioned drying and dehydrating drop in the stirrer; slowly drop into glycol ether 24 ㎏ after the starting; stir after five minutes; to overflow the powder that is bonded on pot cover and the pot wall sweeps in the pot with hairbrush; restir two minutes; starch is soaked fully to be soaked into; thereafter drop into N.F,USP MANNITOL 30 ㎏; self-control superfine titanic oxide opening agent 15 ㎏, Succinic Acid-butyleneglycol-terephthaldehyde's acid copolymer 250 ㎏ stir, take the dish out of the pot after about ten minutes; drop in the TE75 type dual-screw pelletizer group and extrude air-cooled tie rod pelletizing
Table six: dual-screw pelletizer group technological temperature table
After being heated to above-mentioned design temperature, be incubated 30 minutes, open main frame, the main control system electric current is about 220A, and melt pressure is controlled between 1～5 Mpa, opens vacuum pumping hardware, and control vacuum tightness is about 0.08Mpa.Regulation and control metering feeding twin screw invariablenes turning speed is adjusted the tie rod pulling speed and is about 25 meters/minute at 220 rev/mins, after extruding tie rod and meeting required size requirements, tie rod is filled in be cut into cylindric particle of uniform size in the dicing machine.The metering pack packs again, and it is resin dedicated to make it to become the full biological decomposition of blown film level with full biological decomposition function.Then this pellet is poured in the inflation film manufacturing machine, between about 130～150 ℃ of the control blown film temperature, between the control blow-up ratio about 2～4, make its blow molding be can be complete biolytic tube film, again this film is sent into that just can make in the bag machine can complete biolytic film bag product.
Claims (10)
1. the full biological decomposition of non-staple food grain plant amylum modification is resin dedicated, it is characterized in that: its raw material is formed and is comprised following component and ratio of weight and number:
100 parts of non-staple food grain plant amylums, 22～30 parts of moistening paste agents, 20～30 parts of compatilizers, 0～2 part of chainextender, 2～15 parts of opening agent, 0～100 part of poly(lactic acid) can complete biolytic diprotic acid divalent alcohol copolymers 150～250 parts.
2. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described non-staple food grain plant amylum is the composition of a kind of in tapioca (flour), green starch, sweet potato starch, sweet potato starch, yam starch, water caltrop starch or the Rhizoma Nelumbinis starch or two kinds.
3. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described moistening paste agent is a kind of in glycerol, glycol ether and the ethylene glycol.
4. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described compatilizer is a kind of in sorbyl alcohol, Xylitol and the N.F,USP MANNITOL.
5. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described chainextender is a kind of in ADR-4268CS type and the ADR-4370 type chainextender.
6. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described opening agent is agent of silicon-dioxide opening or the agent of titanium dioxide opening.
7. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described poly(lactic acid) is the polymkeric substance that the microbial method fermentation generates lactic acid.
8. the full biological decomposition of a kind of non-staple food grain plant amylum according to claim 1 modification is resin dedicated, it is characterized in that: described can complete biolytic diprotic acid divalent alcohol copolymers be the composition of a kind of in Succinic Acid-butyleneglycol-adipic acid multipolymer, Succinic Acid-butyleneglycol-terephthaldehyde's acid copolymer, the butyleneglycol-adipic acid-terephthaldehyde's acid copolymer or two kinds.
9. the resin dedicated preparation method of full biological decomposition of non-staple food grain plant amylum modification, it is characterized in that: it comprises the steps:
(1) starts the heat drying agitator kettle, under 138 ℃ of pot bodies, a kind of in tapioca (flour) or green starch or sweet potato starch or sweet potato starch or yam starch or water caltrop starch or the Rhizoma Nelumbinis starch or two kinds are dropped in the agitator kettle, stirred 30 minutes, after these non-staple food grain plant amylums are heated that contained water evaporates is clean, become dry powder, when material temperature rise to 145 ℃, put dry mash enter cold pot stir be cooled to below 50 ℃ after, blowing pack sealing is stand-by;
(2) get dried non-staple food grain plant amylum and add 22～30 parts of mixings of moistening paste agent for 100 parts; Starch is soaked soak into gelatinization and then add 20～30 parts of compatilizers; 0～2 part of chainextender; 2～15 parts of opening agent; 0～100 part of poly(lactic acid); can mix for 150～250 parts by complete biolytic diprotic acid divalent alcohol copolymers; the double gas of input twin screw extrudes in the grain-making machine group or the double gas of twin screw is extruded extruding pelletization or compressing tablet in the compressing tablet unit, makes the resin dedicated or sheet material of the full biological decomposition of non-staple food grain plant amylum modification.
10. the resin dedicated preparation method of full biological decomposition of a kind of non-staple food grain plant amylum according to claim 9 modification, it is characterized in that: opening agent described in the step (2) is agent of silicon-dioxide opening or the agent of titanium dioxide opening, the preparation of silicon-dioxide opening agent: get 100 ㎏ (1250～3000 order) silicon dioxide powder and drop in the high cold mixed pot, be stirred to material temperature rise to 105 ℃, drop into 2 ㎏ aluminate coupling agents, restir is during to material temperature rise to 115 ℃, drop into the hard ester acid of 1.5 ㎏, restir is put into cold mixed pot during to material temperature rise to 125 ℃, drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃, stir, take the dish out of the pot after ten minutes, drop into and to extrude air-cooled tie rod pelletizing pack in the dual-screw pelletizer group, the agent of silicon-dioxide opening;
The preparation of titanium dioxide opening agent: get 100 ㎏ (1250～3000 order) titanium dioxide powder and drop in the high cold mixed pot; be stirred to material temperature rise to 105 ℃; drop into 2 ㎏ titanate coupling agents; restir is during to material temperature rise to 115 ℃; drop into the hard ester acid of 1.5 ㎏; restir is put into cold mixed pot during to material temperature rise to 125 ℃; drop into 30 ㎏ Succinic Acid-butyleneglycol multipolymer when being cooled to below 50 ℃; stir; take the dish out of the pot after ten minutes; drop into and to extrude air-cooled tie rod pelletizing pack in the dual-screw pelletizer group, the agent of titanium dioxide opening.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865107A (en) * | 2014-03-26 | 2014-06-18 | 苏州汉丰新材料股份有限公司 | Preparation method and preparation device for fully-biodegradable resin prepared from non-staple-food-grain composite modified hydrophobic starch |
| CN113248877A (en) * | 2021-04-09 | 2021-08-13 | 深圳市华万彩实业有限公司 | Antioxidant starch-based biodegradable material and preparation method thereof |
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| CN1948374A (en) * | 2006-09-28 | 2007-04-18 | 浙江华发生态科技有限公司 | Biomass full degradable material and its preparation technology |
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| CN1903922A (en) * | 2006-05-16 | 2007-01-31 | 广东上九生物降解塑料有限公司 | Fully biodegradable plastic resin and production method of film products thereof |
| CN1948374A (en) * | 2006-09-28 | 2007-04-18 | 浙江华发生态科技有限公司 | Biomass full degradable material and its preparation technology |
Cited By (2)
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| CN103865107A (en) * | 2014-03-26 | 2014-06-18 | 苏州汉丰新材料股份有限公司 | Preparation method and preparation device for fully-biodegradable resin prepared from non-staple-food-grain composite modified hydrophobic starch |
| CN113248877A (en) * | 2021-04-09 | 2021-08-13 | 深圳市华万彩实业有限公司 | Antioxidant starch-based biodegradable material and preparation method thereof |
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