CN105348722A - Environmental-friendly degradable plastic and preparing method thereof - Google Patents
Environmental-friendly degradable plastic and preparing method thereof Download PDFInfo
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- CN105348722A CN105348722A CN201510780491.0A CN201510780491A CN105348722A CN 105348722 A CN105348722 A CN 105348722A CN 201510780491 A CN201510780491 A CN 201510780491A CN 105348722 A CN105348722 A CN 105348722A
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Abstract
Environmental-friendly degradable plastic and a preparing method thereof are disclosed. The plastic comprises following raw materials by weight: starch-grafted ABS, polycaprolactone (PCL), poly(hydroxy ester ether), plant powder, graphite fiber, a silane coupling agent KH792, glycerol, styrene-butadiene thermoplastic elastomer (SBS), methyl methacrylate-butadiene-styrene copolymer (MBS), hydrogenated styrene-butadiene-styrene block copolymer (SEBS), dipentaerythritol ester PCB, polyethylene wax, nanometer calcium carbonate, silk white powder, kaolin, asbestos powder, 2,6-di-tert-butylphenol (BHT) and an antioxidant 2246. The plastic is good in mechanical performance and processing performance and is excellent in biodegradability, thus avoiding environment pollution.
Description
Technical field
The present invention relates to plastics arts, particularly relate to a kind of Degradable environment-friendlyplastic plastic and preparation method thereof.
Background technology
ABS (acrylonitrile-butadiene-styrene (ABS)) resin is important general synthetic resin, and main body is vinyl cyanide, divinyl and cinnamic blend or terpolymer, is a kind of tough and tensile and have the thermoplastics of rigidity.Its purposes widely, automotive industry is usually used in manufacturing automobile component as dashboard, vehicle-body outer panel, inner trim panels, bearing circle, insulating board, door lock, collision bumper, vent-pipe etc., household electric appliances are usually used in manufacturing as refrigerator, televisor, washing machine, vacuum cleaner, food mixer, the housing etc. of telephone set, be usually used in manufacturing as sanitary apparatus at architectural decoration, swimming pool lining, tubing and pipe fitting etc., in addition also for the manufacture of safety helmet, motorcycle plate washer, heel, snowfield sporting goods, toy, clock, casing of loudspeaker box, suitcase, button, the daily necessities such as minaudiere and nameplate, the advertising matters such as ornament.
Although ABS application plastic applications is extensive, due to the characteristic of the molecular structure performance of ABS own, the plastics that ABS is made are obviously not enough in easy degradation environment protection.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of Degradable environment-friendlyplastic plastic and preparation method thereof, described environmentally-friendly plastic is by carrying out modification to ABS, its preparation-obtained environmentally-friendly plastic is made not only to have good mechanical property and processing characteristics, and there is excellent biodegradable, avoid causing environmental pollution.
A kind of Degradable environment-friendlyplastic plastic that the present invention proposes, its raw material comprises by weight: grafting modified of starch ABS50-70 part, polycaprolactone (PCL) 30-45 part, poly-hydroxy ester ether 15-25 part, Plant Powder 3-5 part, graphite fibre 2-4 part, silane coupling agent KH7922-4 part, glycerine 6-10 part, styrene butadiene thermoplasticelastomer SBS3-6 part, MBS MBS2-5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS5-10 part, bis(pentaerythritolester) PCB3-5 part, polyethylene wax 5.5-6.5 part, nano-calcium carbonate 3-6 part, thin,tough silk white powder 15-20 part, kaolin 7-15 part, asbestos powder 5-10 part, 2, 6-di-tert-butyl-4-methy phenol BHT1.4-3 part, antioxidant 22460.5-1.2 part,
The method preparing described grafting modified of starch ABS comprises: added by maleic anhydride in ABS and carry out graft reaction, obtain ABS-g-MAH; Heat up after being added water by starch, adjust ph is 9-10, adds sodium polyphosphate stirring reaction, and acid adding is adjusted to neutral post-drying, obtains esterification starch again; Described esterification starch and pyridine are dissolved in DMF, heat up and stir, add the xylene solution being dissolved with ABS-g-MAH and p-methyl benzenesulfonic acid, stirring reaction under constant temperature; Gained reaction solution is added in cold water and precipitates, filter, washing, dry, obtain described grafting modified of starch ABS.
Preferably, the method preparing described grafting modified of starch ABS comprises: added in 60-80 part ABS by 1-3 part maleic anhydride and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 1-3%; Be warming up to 40-50 DEG C after being added water by 30-50 part starch again, use Na
2cO
3solution adjust ph is 9-10, and add 5-15 part sodium polyphosphate stirring reaction 0.5-1h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 2-6 part pyridine are dissolved in DMF, are warming up to 120-140 DEG C and stir 0.2-0.5h, add the xylene solution being dissolved with described ABS-g-MAH and 1-3 part p-methyl benzenesulfonic acid, stirring reaction 2-4h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS.
Preferably, the graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 10-15min at 160-180 DEG C, washing, filtration obtain described ABS-g-MAH.
Preferably, described Degradable environment-friendlyplastic plastic, its raw material comprises by weight: grafting modified of starch ABS55-65 part, polycaprolactone (PCL) 35-40 part, poly-hydroxy ester ether 18-23 part, Plant Powder 3.5-4.5 part, graphite fibre 2.8-3.2 part, silane coupling agent KH7922.5-3.0 part, glycerine 7-8 part, styrene butadiene thermoplasticelastomer SBS4-5 part, MBS MBS3.5-4.5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS7-9 part, bis(pentaerythritolester) PCB4.0-4.5 part, polyethylene wax 5.8-6.2 part, nano-calcium carbonate 4-5 part, thin,tough silk white powder 16-18 part, kaolin 9-12 part, asbestos powder 7-9 part, 2, 6-di-tert-butyl-4-methy phenol BHT1.8-2.4 part, antioxidant 22460.8-1.0 part.
Preferably, described Plant Powder is, after soaking 1-2h by the hydrochloric acid soln of 2-3% after Pericarppium arachidis hypogaeae or soybean peel are pulverized, dry, pulverize obtained.
Preferably, the weight ratio of polycaprolactone (PCL) and poly-hydroxy ester ether is 38-40:18-21.
Preferably, styrene butadiene thermoplasticelastomer SBS, the weight ratio of MBS MBS and hydrogenated styrene-butadiene-styrene block copolymers SEBS is 5:4:8.
A kind of preparation method of Degradable environment-friendlyplastic plastic, comprise: by grafting modified of starch ABS, polycaprolactone (PCL), poly-hydroxy ester ether, Plant Powder, graphite fibre, silane coupling agent KH792, glycerine, styrene butadiene thermoplasticelastomer SBS, MBS MBS, hydrogenated styrene-butadiene-styrene block copolymers SEBS, bis(pentaerythritolester) PCB, polyethylene wax, nano-calcium carbonate, thin,tough silk white powder, kaolin, asbestos powder, 2, 6-di-tert-butyl-4-methy phenol BHT, antioxidant 2246 add stir in homogenizer after release, the material of releasing is added in twin screw extruder again and extrudes, by the material cooling check rod extruded, air-dry pelletizing, namely obtain described Degradable environment-friendlyplastic plastic.
Preferably, the stir speed (S.S.) of homogenizer is 1000-1200r/min, and churning time is 5-10min.
Preferably, the length-to-diameter ratio of twin screw extruder is 35-40, processing temperature is: district's temperature is 175-180 DEG C, two district's temperature are 185-190 DEG C, and three district's temperature are 195-200 DEG C, and four district's temperature are 210-215 DEG C, five district's temperature are 220-225 DEG C, six district's temperature are 230-235 DEG C, and seven district's temperature are 240-245 DEG C, and engine speed is 300-450r/min.
The present invention is with grafting modified of starch ABS, polycaprolactone (PCL) and poly-hydroxy ester ether are major ingredient, the present invention is made to have excellent shock resistance, thermotolerance, lower temperature resistance, chemical-resistant resistance etc. machinery and chemical property while, its grafting modified of starch ABS is by after nonpolar ABS is adopted maleic anhydride graft, obtain with the starch reaction after Phosphation, because the reactive behavior of hydroxyl residual on the starch of over-churning increases greatly, multiple reaction can be carried out, ABS after itself and maleic anhydride graft can react well, overcome the shortcoming of ABS and starch blending poor compatibility on the one hand, give ABS excellent biodegradable performance on the other hand, in addition the bis(pentaerythritolester) PCB added, polyethylene wax mix with major ingredient, while raising system mobility, material is better disperseed, achieve the comprehensive raising of the performances such as plastic working, and bis(pentaerythritolester) PCB is also as stablizer, with 2,6-di-tert-butyl-4-methy phenol BHT, antioxidant 2246 combined action, significantly improve the oxidation resistance of plastics of the present invention, not hardening in life-time service process, do not rupture, ungauged regions tilt phenomenon, do not affect viscosity, increase the service life, styrene butadiene thermoplasticelastomer SBS, MBS MBS that cooperation adds, hydrogenated styrene-butadiene-styrene block copolymers SEBS are as toughner, plastics toughness Be very effective is strengthened, and there is excellent processing characteristics and impact resistance, Plant Powder and graphite fibre with the use of, increase substantially stretch-proof performance of the present invention, meanwhile with combined action such as nano-calcium carbonate, thin,tough silk white powder, kaolin, asbestos powders, by the surface modification effect of silane coupling agent KH792, inorganic raw material and major ingredient is made to form an entirety, strength property of the present invention can also be substantially increased, make plastics of the present invention have good comprehensive physical mechanical property.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of Degradable environment-friendlyplastic plastic, its raw material comprises by weight: grafting modified of starch ABS50 part, polycaprolactone (PCL) 45 parts, poly-15 parts, hydroxy ester ether, Plant Powder 5 parts, graphite fibre 2 parts, silane coupling agent KH7924 part, glycerine 6 parts, styrene butadiene thermoplasticelastomer SBS6 part, MBS MBS2 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS10 part, bis(pentaerythritolester) PCB3 part, polyethylene wax 6.5 parts, nano-calcium carbonate 3 parts, 20 parts, thin,tough silk white powder, kaolin 7 parts, asbestos powder 10 parts, 2, 6-di-tert-butyl-4-methy phenol BHT1.4 part, antioxidant 22461.2 parts,
The method preparing described grafting modified of starch ABS comprises: added in 80 parts of ABS by 1 part of maleic anhydride and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 1%; Be warming up to 40 DEG C after being added water by 50 parts of starch again, use Na
2cO
3solution adjust ph is 9-10, and add 15 parts of sodium polyphosphate stirring reaction 0.5h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 6 parts of pyridines are dissolved in DMF, are warming up to 120 DEG C and stir 0.5h, add the xylene solution being dissolved with described ABS-g-MAH and 1 part p-methyl benzenesulfonic acid, stirring reaction 4h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS; The graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 15min at 160 DEG C, and washing, filtration obtain described ABS-g-MAH.
Embodiment 2
A kind of Degradable environment-friendlyplastic plastic, its raw material comprises by weight: grafting modified of starch ABS70 part, polycaprolactone (PCL) 30 parts, poly-25 parts, hydroxy ester ether, Plant Powder 3 parts, graphite fibre 4 parts, silane coupling agent KH7922 part, glycerine 10 parts, styrene butadiene thermoplasticelastomer SBS3 part, MBS MBS5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS5 part, bis(pentaerythritolester) PCB5 part, polyethylene wax 5.5 parts, nano-calcium carbonate 6 parts, 15 parts, thin,tough silk white powder, kaolin 15 parts, asbestos powder 5 parts, 2, 6-di-tert-butyl-4-methy phenol BHT3 part, antioxidant 22460.5 parts,
The method preparing described grafting modified of starch ABS comprises: added in 60 parts of ABS by 3 parts of maleic anhydrides and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 3%; Be warming up to 50 DEG C after being added water by 30 parts of starch again, use Na
2cO
3solution adjust ph is 9-10, and add 5 parts of sodium polyphosphate stirring reaction 1h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 2 parts of pyridines are dissolved in DMF, are warming up to 140 DEG C and stir 0.2h, add the xylene solution being dissolved with described ABS-g-MAH and 3 part p-methyl benzenesulfonic acid, stirring reaction 2h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS; The graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 10min at 180 DEG C, and washing, filtration obtain described ABS-g-MAH.
Embodiment 3
A kind of Degradable environment-friendlyplastic plastic, its raw material comprises by weight: grafting modified of starch ABS55 part, polycaprolactone (PCL) 40 parts, poly-18 parts, hydroxy ester ether, Plant Powder 4.5 parts, graphite fibre 2.8 parts, silane coupling agent KH7923.0 part, glycerine 7 parts, styrene butadiene thermoplasticelastomer SBS5 part, MBS MBS3.5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS9 part, bis(pentaerythritolester) PCB4.0 part, polyethylene wax 6.2 parts, nano-calcium carbonate 4 parts, 18 parts, thin,tough silk white powder, kaolin 9 parts, asbestos powder 9 parts, 2, 6-di-tert-butyl-4-methy phenol BHT1.8 part, antioxidant 22461.0 parts,
The method preparing described grafting modified of starch ABS comprises: added in 80 parts of ABS by 1 part of maleic anhydride and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 1%; Be warming up to 40 DEG C after being added water by 50 parts of starch again, use Na
2cO
3solution adjust ph is 9-10, and add 15 parts of sodium polyphosphate stirring reaction 0.5h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 6 parts of pyridines are dissolved in DMF, are warming up to 120 DEG C and stir 0.5h, add the xylene solution being dissolved with described ABS-g-MAH and 1 part p-methyl benzenesulfonic acid, stirring reaction 4h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS; The graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 15min at 160 DEG C, and washing, filtration obtain described ABS-g-MAH.
Embodiment 4
A kind of Degradable environment-friendlyplastic plastic, its raw material comprises by weight: grafting modified of starch ABS65 part, polycaprolactone (PCL) 35 parts, poly-23 parts, hydroxy ester ether, Plant Powder 3.5 parts, graphite fibre 3.2 parts, silane coupling agent KH7922.5 part, glycerine 8 parts, styrene butadiene thermoplasticelastomer SBS4 part, MBS MBS4.5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS7 part, bis(pentaerythritolester) PCB4.5 part, polyethylene wax 5.8 parts, nano-calcium carbonate 5 parts, 16 parts, thin,tough silk white powder, kaolin 12 parts, asbestos powder 7 parts, 2, 6-di-tert-butyl-4-methy phenol BHT2.4 part, antioxidant 22460.8 parts,
The method preparing described grafting modified of starch ABS comprises: added in 70 parts of ABS by 2 parts of maleic anhydrides and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 2%; Be warming up to 45 DEG C after being added water by 40 parts of starch again, use Na
2cO
3solution adjust ph is 9-10, and add 10 parts of sodium polyphosphate stirring reaction 0.7h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 4 parts of pyridines are dissolved in DMF, are warming up to 130 DEG C and stir 0.4h, add the xylene solution being dissolved with described ABS-g-MAH and 2 part p-methyl benzenesulfonic acid, stirring reaction 3h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS; The graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 13min at 170 DEG C, and washing, filtration obtain described ABS-g-MAH.
Described in above-described embodiment 1-4, the preparation method of Degradable environment-friendlyplastic plastic comprises: by grafting modified of starch ABS, polycaprolactone (PCL), poly-hydroxy ester ether, Plant Powder, graphite fibre, silane coupling agent KH792, glycerine, styrene butadiene thermoplasticelastomer SBS, MBS MBS, hydrogenated styrene-butadiene-styrene block copolymers SEBS, bis(pentaerythritolester) PCB, polyethylene wax, nano-calcium carbonate, thin,tough silk white powder, kaolin, asbestos powder, 2, 6-di-tert-butyl-4-methy phenol BHT, antioxidant 2246 adds in homogenizer, release after stirring 5-10min with the stir speed (S.S.) of 1000-1200r/min, the material of releasing being added again length-to-diameter ratio is extrude in the twin screw extruder of 35-40, processing temperature is: district's temperature is 175-180 DEG C, two district's temperature are 185-190 DEG C, three district's temperature are 195-200 DEG C, four district's temperature are 210-215 DEG C, and five district's temperature are 220-225 DEG C, and six district's temperature are 230-235 DEG C, seven district's temperature are 240-245 DEG C, and engine speed is 300-450r/min, by the material cooling check rod extruded, air-dry pelletizing, namely obtain described Degradable environment-friendlyplastic plastic.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. a Degradable environment-friendlyplastic plastic, it is characterized in that, its raw material comprises by weight: grafting modified of starch ABS50-70 part, polycaprolactone (PCL) 30-45 part, poly-hydroxy ester ether 15-25 part, Plant Powder 3-5 part, graphite fibre 2-4 part, silane coupling agent KH7922-4 part, glycerine 6-10 part, styrene butadiene thermoplasticelastomer SBS3-6 part, MBS MBS2-5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS5-10 part, bis(pentaerythritolester) PCB3-5 part, polyethylene wax 5.5-6.5 part, nano-calcium carbonate 3-6 part, thin,tough silk white powder 15-20 part, kaolin 7-15 part, asbestos powder 5-10 part, 2, 6-di-tert-butyl-4-methy phenol BHT1.4-3 part, antioxidant 22460.5-1.2 part,
The method preparing described grafting modified of starch ABS comprises: added by maleic anhydride in ABS and carry out graft reaction, obtain ABS-g-MAH; Heat up after being added water by starch, adjust ph is 9-10, adds sodium polyphosphate stirring reaction, and acid adding is adjusted to neutral post-drying, obtains esterification starch again; Described esterification starch and pyridine are dissolved in DMF, heat up and stir, add the xylene solution being dissolved with ABS-g-MAH and p-methyl benzenesulfonic acid, stirring reaction under constant temperature; Gained reaction solution is added in cold water and precipitates, filter, washing, dry, obtain described grafting modified of starch ABS.
2. Degradable environment-friendlyplastic plastic according to claim 1, is characterized in that, the method preparing described grafting modified of starch ABS comprises: added in 60-80 part ABS by 1-3 part maleic anhydride and carry out graft reaction, obtain the ABS-g-MAH that percentage of grafting is 1-3%; Be warming up to 40-50 DEG C after being added water by 30-50 part starch again, use Na
2cO
3solution adjust ph is 9-10, and add 5-15 part sodium polyphosphate stirring reaction 0.5-1h, acid adding is adjusted to neutral post-drying, obtains esterification starch; Described esterification starch and 2-6 part pyridine are dissolved in DMF, are warming up to 120-140 DEG C and stir 0.2-0.5h, add the xylene solution being dissolved with described ABS-g-MAH and 1-3 part p-methyl benzenesulfonic acid, stirring reaction 2-4h under constant temperature; Added in cold water by gained reaction solution and precipitate, filter, washing, after oven dry, obtains described grafting modified of starch ABS.
3. Degradable environment-friendlyplastic plastic according to claim 2, it is characterized in that, the graft reaction of described ABS-g-MAH comprises: join in Banbury mixer after ABS, radical initiator and oxidation inhibitor being pre-mixed, after ABS plastifies completely, add MAH at twice, banburying 10-15min at 160-180 DEG C, washing, filtration obtain described ABS-g-MAH.
4. the Degradable environment-friendlyplastic plastic according to any one of claim 1-3, it is characterized in that, its raw material comprises by weight: grafting modified of starch ABS55-65 part, polycaprolactone (PCL) 35-40 part, poly-hydroxy ester ether 18-23 part, Plant Powder 3.5-4.5 part, graphite fibre 2.8-3.2 part, silane coupling agent KH7922.5-3.0 part, glycerine 7-8 part, styrene butadiene thermoplasticelastomer SBS4-5 part, MBS MBS3.5-4.5 part, hydrogenated styrene-butadiene-styrene block copolymers SEBS7-9 part, bis(pentaerythritolester) PCB4.0-4.5 part, polyethylene wax 5.8-6.2 part, nano-calcium carbonate 4-5 part, thin,tough silk white powder 16-18 part, kaolin 9-12 part, asbestos powder 7-9 part, 2, 6-di-tert-butyl-4-methy phenol BHT1.8-2.4 part, antioxidant 22460.8-1.0 part.
5. the Degradable environment-friendlyplastic plastic according to any one of claim 1-4, is characterized in that, the weight ratio of polycaprolactone (PCL) and poly-hydroxy ester ether is 38-40:18-21.
6. the Degradable environment-friendlyplastic plastic according to any one of claim 1-4, it is characterized in that, styrene butadiene thermoplasticelastomer SBS, the weight ratio of MBS MBS and hydrogenated styrene-butadiene-styrene block copolymers SEBS is 5:4:8.
7. the preparation method of the Degradable environment-friendlyplastic plastic according to any one of claim 1-5, it is characterized in that, comprise: by grafting modified of starch ABS, polycaprolactone (PCL), poly-hydroxy ester ether, Plant Powder, graphite fibre, silane coupling agent KH792, glycerine, styrene butadiene thermoplasticelastomer SBS, MBS MBS, hydrogenated styrene-butadiene-styrene block copolymers SEBS, bis(pentaerythritolester) PCB, polyethylene wax, nano-calcium carbonate, thin,tough silk white powder, kaolin, asbestos powder, 2, 6-di-tert-butyl-4-methy phenol BHT, antioxidant 2246 add stir in homogenizer after release, the material of releasing is added in twin screw extruder again and extrudes, by the material cooling check rod extruded, air-dry pelletizing, namely obtain described Degradable environment-friendlyplastic plastic.
8. the preparation method of Degradable environment-friendlyplastic plastic according to claim 7, is characterized in that, the stir speed (S.S.) of homogenizer is 1000-1200r/min, and churning time is 5-10min.
9. the preparation method of the Degradable environment-friendlyplastic plastic according to claim 7 or 8, it is characterized in that, the length-to-diameter ratio of twin screw extruder is 35-40, and processing temperature is: district's temperature is 175-180 DEG C, and two district's temperature are 185-190 DEG C, three district's temperature are 195-200 DEG C, four district's temperature are 210-215 DEG C, and five district's temperature are 220-225 DEG C, and six district's temperature are 230-235 DEG C, seven district's temperature are 240-245 DEG C, and engine speed is 300-450r/min.
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| CN103384704A (en) * | 2011-04-18 | 2013-11-06 | 乐金华奥斯有限公司 | Biodegradable polymer composite material |
| CN104962033A (en) * | 2015-07-28 | 2015-10-07 | 苏州荣昌复合材料有限公司 | Degradable ABS plastic and preparation method thereof |
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| CN103384704A (en) * | 2011-04-18 | 2013-11-06 | 乐金华奥斯有限公司 | Biodegradable polymer composite material |
| CN102311562A (en) * | 2011-09-13 | 2012-01-11 | 优势塑胶制品（安吉）有限公司 | Blend of thermoplastic starch and polylactic acid, and its producing method |
| CN104962033A (en) * | 2015-07-28 | 2015-10-07 | 苏州荣昌复合材料有限公司 | Degradable ABS plastic and preparation method thereof |
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| CN109111600A (en) * | 2018-06-08 | 2019-01-01 | 合肥华冠包装科技有限公司 | A kind of degradable biological matter fibrous composite packing box |
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Application publication date: 20160224 |