CN103421286A - High temperature resistant and degradable polylactic acid wood plastic material and preparation method thereof - Google Patents
High temperature resistant and degradable polylactic acid wood plastic material and preparation method thereof Download PDFInfo
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- CN103421286A CN103421286A CN201310345147XA CN201310345147A CN103421286A CN 103421286 A CN103421286 A CN 103421286A CN 201310345147X A CN201310345147X A CN 201310345147XA CN 201310345147 A CN201310345147 A CN 201310345147A CN 103421286 A CN103421286 A CN 103421286A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92638—Length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
Abstract
The invention discloses a high temperature resistant and degradable polylactic acid wood plastic material and a preparation method thereof. The polylactic acid wood plastic material is prepared through the following steps: uniformly mixing the following ingredients by mass: 50%-70% of polylactic acid, 10%-20% of toughening component, 10%-40% of vegetable fiber, and 1%-3% of other auxiliaries, preparing the polyblend master batch through an extruding machine, and preparing polylactic acid wood plastic material through the extruding machine. According to the invention, polylactic acid is used as basal body resin material, flexible and biologically degradable plastic is used as a toughening component, vegetable fiber is used as an intensifier, and a coupling agent, an anti-oxidant, a lubricant and other auxiliaries are added to realize the modification for polylactic acid wood in heat resistance and tenacity; compared with conventional petroleum based macro molecule material, the polylactic acid wood plastic material is environmental-friendly and reproducible; compared with conventional polylactic acid material, the polylactic acid wood plastic material has excellent tenacity and heat resistance.
Description
Technical field
The present invention relates to a kind of high temperature resistant, degradable poly(lactic acid) Wood-plastic material and preparation method thereof, belong to the biodegradated polymer materal field, belong to polymer blended, Polymer Processing field simultaneously.
Background technology
Poly(lactic acid) is a kind of aliphatic polyester synthetic by renewable resources, is also that research is more, the synthetic polymer bio-degradable plastics of better performances.Its good performance is good mechanical property for example, the transparency, and chemical stability, thermoplasticity and biocompatibility make poly(lactic acid) be widely used in the fields such as goods agricultural, clothes, medical treatment, packing.
In actual applications, the fragility of polylactic acid article is large, tear strength is low, high production cost, thermotolerance is low, and wetting ability is poor, and softening temperature is low, the problems such as degradation rate is low are subject to many limitations it, in the application aspect the environmental organism degradable material, are not also popularized widely and commercialization.In order to overcome these limitations, be necessary poly(lactic acid) is carried out to modification, improve application of temperature, reduce costs, keep its good mechanical property simultaneously.
Summary of the invention
Purpose of the present invention is exactly the shortcoming for prior art, provide a kind of starting material wide material sources, high heat-resisting, toughness is good, biodegradable, poly(lactic acid) Wood-plastic material and preparation method.
The object of the invention is achieved through the following technical solutions:
A kind of high temperature resistant and degradable poly(lactic acid) Wood-plastic material, by raw materials quality per-cent, by 50% ?70% poly(lactic acid), 10% ?20% toughness reinforcing component, 10% ?40% vegetable fibre and 1% ?3% other auxiliary agents mix, use the standby blend master batch of extrusion mechanism, then by forcing machine, prepare the poly(lactic acid) Wood-plastic material;
Described poly(lactic acid) is Poly-L-lactic acid, weight-average molecular weight be 10 Wan ?200,000;
Described toughness reinforcing component is one or more in poly-hexanodioic acid/butylene terephthalate (PBAT), poly (propylene carbonate) (PPC) and poly-epsilon-caprolactone (PCL);
Described vegetable fibre is one or more in wood powder, bamboo powder, tealeaves, jute fibre, hemp fibre, straw, Wheat Straw, bagasse;
Described other auxiliary agents are coupling agent, oxidation inhibitor and lubricant.
For further realizing the object of the invention, preferably, described oxidation inhibitor is antioxidant 1010, the oxidation inhibitor consumption be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.25% ?1%.Described lubricant is stearic acid or whiteruss, lubricant quantity be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.25% ?2%.Described coupling agent Wei γ ?glycidyl ether oxygen propyl trimethoxy silicane (KH560), the coupling agent consumption be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.5% ?2%.
The preparation method of described high temperature resistant and degradable poly(lactic acid) Wood-plastic material, comprise the steps:
(1) preparation of blend master batch: poly(lactic acid), toughness reinforcing component are first carried out to mechanically mixing by proportioning, spray after coupling agent after vegetable fibre and other auxiliary agents are added and again mix, make poly(lactic acid) and toughness reinforcing component particle can coat one deck vegetable fibre, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃ of %, the feed worm rotating speed be 15 ?25rpm, the driving screw rotating speed be 140 ?160rpm, pelletizing length be 2 ?4mm.
(2) composite material sheet preparation: the forcing machine that is compressing tablet by die orifice by the matrix material blend master batch of preparation is prepared the poly(lactic acid) Wood-plastic material, and setting extruder temperature is 200 ℃ of 160 ℃ of ?, and screw speed is 60rpm ?100rpm.
The present invention has good flexible fully biodegradable plastics to comprise poly-hexanodioic acid/butylene terephthalate (PBAT), poly (propylene carbonate) (PPC), poly-epsilon-caprolactone (PCL) etc., and they all have good processing characteristics and biological degradability.Poly-hexanodioic acid/butylene terephthalate (PBAT) is tetramethylene adipate and mutual-phenenyl two acid bromide two alcohol ester's multipolymer, have both characteristics concurrently, good ductility and elongation at break are arranged, and thermotolerance and impact property preferably, be one of degradable material of very active in current biodegradable plastic research and market application; Poly (propylene carbonate) (PPC) is to take the material of a kind of Wholly-degradable that carbonic acid gas that and propylene oxide be raw material system, and low price and elongation at break are high; Poly-epsilon-caprolactone (PCL) has good biocompatibility, and price is on the low side in biodegradable plastic simultaneously, is also a kind of very promising biodegradable plastic.
The wood plastic composite principal feature of filling preparation by vegetable fibre has: durable, the life-span is long, and modulus in flexure is high, and than timber good stability, easily processing has wooden outward appearance simultaneously.
If just add separately elastic body toughening, because elastomerics and plastic substrate consistency are not good especially, the elastomerics particle is easy to deviate from mutually from plastics, thereby the decrease that causes elastic body toughening poor effect and intensity, and, due to the elastomeric existence of second-order transition temperature lower than normal temperature, the resistance toheat of matrix material also can descend.Iff adding separately vegetable fibre, a small amount of vegetable fibre can improve intensity and the resistance toheat of material slightly, but can't play good toughening effect, a large amount of vegetable fibres is difficult to again process, thereby easily reunites and make material have defect in the course of processing.Add elastomerics and vegetable fibre simultaneously and can play good synergy, vegetable fibre and plastic substrate consistency through coupling agent treatment are good, can absorb part energy when being subject to External Force Acting, make the more difficult fracture of plastic substrate, carry the high-intensity while also can make the toughening effect that elastomerics performance is larger; Secondly, because elastomerics particle and vegetable fibre all exist with micron-sized size in the poly(lactic acid) matrix, in the course of processing, elastomerics particle and vegetable fibre interact and make the more difficult reunion of vegetable fibre, can disperse more even, thereby make product defect few, over-all properties is better.
With respect to prior art, the present invention has the following advantages:
(1) the present invention carries out blend and filling to poly(lactic acid) simultaneously, improve resistance toheat, the hardness of matrix material and improve outward appearance in the toughness that improves matrix material with when guaranteeing certain biological degradability, embodied the coordinated effect of toughening material and filler, be one and reduce costs the high performance method of putting forward.
(2) thermoplasticity biodegradable plastic of the present invention adds the shock strength that has significantly improved matrix material and has guaranteed the biodegradability that material is certain;
(3) vegetable fibre add resistance toheat and the rigidity that has improved matrix material, make matrix material have natural wood appearance simultaneously;
(4) poly(lactic acid) belongs to the bio-degradable plastics of environmental sound, derives from renewable resources;
(5) matrix material of the present invention is easily processed, can be by extruding in certain temperature range, calendering, plastics sucking moulding, and material property can be regulated by the content that changes each component.
Embodiment
For understanding better the present invention, below in conjunction with embodiment, the invention will be further described, it should be noted that, embodiment does not form the restriction to the claimed scope of the present invention.
Material performance test method of the present invention is as follows:
Use injection moulding machine to be injection molded into the standard batten matrix material master batch, tensile strength and elongation at break are tested according to GB/T1040 ?2006 rate of extension of 50mm under normal temperature; The socle girder notched Izod impact strength is tested under normal temperature according to ASTM D256; Vicat softening point according to GB/T1633 ?2000 in 10N, under the temperature rise rate of 120 ℃/h, tested.
Comparative Examples
The material that this Comparative Examples provides is to be formed according to the weight part proportioning by following raw material:
Poly(lactic acid) 100
Antioxidant 1010 0.5
At first by the poly(lactic acid) of above-mentioned raw materials dry 8h in the vacuum drying oven of 80 ℃; By dried poly(lactic acid) particle with carry out extruding pelletization by twin screw extruder after antioxidant 1010 mixes, set extruder temperature and be 160 ℃ ?180 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 25rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 3mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 185 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 25MPa; Through test, obtain: this tensile strength of material is 72MPa, and elongation at break is 6%, and the socle girder notched Izod impact strength is 27J/m, and Vicat softening point is 58 ℃.
Embodiment 1
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PBAT, wood powder is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PBAT first carry out mechanically mixing by proportioning, spray after coupling agent after wood powder and other auxiliary agents are added and again mix, make poly(lactic acid) and PBAT particle can coat one deck wood powder, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 25rpm, the driving screw rotating speed is 60rpm, and pelletizing length is 4mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 78MPa, and elongation at break is 10%, and the socle girder notched Izod impact strength is 47J/m, and Vicat softening point is 89 ℃.
Embodiment 2
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PPC, the bamboo powder is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PPC first carry out mechanically mixing by proportioning, spray after coupling agent after bamboo powder and other auxiliary agents are added and again mix, make poly(lactic acid) and PPC particle can coat one deck bamboo powder, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃ from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 15rpm, and the driving screw rotating speed is 140rpm, and pelletizing length is 2; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 73MPa, and elongation at break is 38%, and shock strength is 56J/m, and Vicat softening point is 85 ℃.
Embodiment 3
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PCL, tealeaf residue is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PCL first carry out mechanically mixing by proportioning, spray after coupling agent after tealeaf residue and other auxiliary agents are added and again mix, make poly(lactic acid) and PCL particle can coat one deck tealeaf residue, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 20rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 2mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 81MPa, and elongation at break is 28%, and shock strength is 53J/m, and Vicat softening point is 86 ℃.
Embodiment 4
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PBAT, jute fibre is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PBAT first carry out mechanically mixing by proportioning, spray after coupling agent after jute fibre and other auxiliary agents are added and again mix, make poly(lactic acid) and PBAT particle can coat one deck jute fibre, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 15rpm, the driving screw rotating speed is 140rpm, and pelletizing length is 4mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 91MPa, and elongation at break is 46%, and shock strength is 65J/m, and Vicat softening point is 98 ℃.
Embodiment 5
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PCL, rice straw powder is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PCL first carry out mechanically mixing by proportioning, spray after coupling agent after rice straw powder and other auxiliary agents are added and again mix, make poly(lactic acid) and PCL particle can coat one deck rice straw powder, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 20rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 2mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 77MPa, and elongation at break is 14%, and shock strength is 42J/m, and Vicat softening point is 93 ℃.
Embodiment 6
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PPC, bagasse is dry 4h in 100 ℃ of convection oven; Poly(lactic acid), PPC first carry out mechanically mixing by proportioning, spray after coupling agent after bagasse and other auxiliary agents are added and again mix, make poly(lactic acid) and PCL particle can coat one deck bagasse, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 15rpm, the driving screw rotating speed is 160rpm, and pelletizing length is 3mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 76MPa, and elongation at break is 44%, and shock strength is 68J/m, and Vicat softening point is 84 ℃.
Embodiment 7
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PBAT, hemp fibre is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PBAT first carry out mechanically mixing by proportioning, spray after coupling agent after hemp fibre and other auxiliary agents are added and again mix, make poly(lactic acid) and PBAT particle can coat one deck hemp fibre, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 20rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 4mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 75MPa, and elongation at break is 21%, and shock strength is 55J/m, and Vicat softening point is 83 ℃.
Embodiment 8
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PCL, Wheat Straw is dry 8h in 100 ℃ of convection oven; Poly(lactic acid), PCL first carry out mechanically mixing by proportioning, spray after coupling agent after Wheat Straw and other auxiliary agents are added and again mix, make poly(lactic acid) and PCL particle can coat one deck Wheat Straw, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 25rpm, the driving screw rotating speed is 160rpm, and pelletizing length is 4mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, from the feed zone to the head temperature, progressively improves, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 81MPa, and elongation at break is 23%, and shock strength is 51J/m, and Vicat softening point is 91 ℃.
Embodiment 9
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PBAT, wood powder and jute fibre be dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PBAT first carry out mechanically mixing by proportioning, spray after coupling agent after wood powder, jute fibre and other auxiliary agents are added and again mix, make poly(lactic acid) and toughness reinforcing component particle can coat one deck vegetable fibre, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 20rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 2mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 88MPa, and elongation at break is 24%, and shock strength is 64J/m, and Vicat softening point is 99 ℃.
Embodiment 10
Material provided by the invention is to be formed by weight ratio by following raw material:
At first the dry 8h in the vacuum drying oven of 80 ℃ by the poly(lactic acid) of above-mentioned raw materials and PBAT, PCL, wood powder is dry 4h in 100 ℃ of air dry ovens; Poly(lactic acid), PBAT, PCL first carry out mechanically mixing by proportioning, spray after coupling agent after wood powder and other auxiliary agents are added and again mix, make poly(lactic acid) and PBAT, PCL particle can coat one deck wood powder, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃, from the feed zone to the head temperature, progressively improve, the feed worm rotating speed is 20rpm, the driving screw rotating speed is 150rpm, and pelletizing length is 2mm; Master batch is injection molded into the standard batten by injection moulding machine again, and setting the injection moulding machine temperature is 190 ℃ of 160 ℃ of ?, and injection pressure is 40MPa; Through test, obtain: this tensile strength of material is 67MPa, and elongation at break is 51%, and shock strength is 70J/m, and Vicat softening point is 90 ℃.
Claims (5)
1. a high temperature resistant and degradable poly(lactic acid) Wood-plastic material, it is characterized in that: by raw materials quality per-cent, by 50% ?70% poly(lactic acid), 10% ?20% toughness reinforcing component, 10% ?40% vegetable fibre and 1% ?3% other auxiliary agents mix, use the standby blend master batch of extrusion mechanism, then by forcing machine, prepare the poly(lactic acid) Wood-plastic material;
Described poly(lactic acid) is Poly-L-lactic acid, weight-average molecular weight be 10 Wan ?200,000;
Described toughness reinforcing component is one or more in poly-hexanodioic acid/butylene terephthalate, poly (propylene carbonate) and poly-epsilon-caprolactone;
Described vegetable fibre is one or more in wood powder, bamboo powder, tealeaves, jute fibre, hemp fibre, straw, Wheat Straw, bagasse;
Described other auxiliary agents are coupling agent, oxidation inhibitor and lubricant.
2. high temperature resistant and degradable poly(lactic acid) Wood-plastic material according to claim 1, it is characterized in that: described oxidation inhibitor is antioxidant 1010, the oxidation inhibitor consumption be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.25% ?1%.
3. high temperature resistant and degradable poly(lactic acid) Wood-plastic material according to claim 1, it is characterized in that: described lubricant is stearic acid or whiteruss, lubricant quantity be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.25% ?2%.
4. high temperature resistant and degradable poly(lactic acid) Wood-plastic material according to claim 1, it is characterized in that: described coupling agent Wei γ ?glycidyl ether oxygen propyl trimethoxy silicane, the coupling agent consumption be poly(lactic acid), toughness reinforcing component and vegetable fibre total mass 0.5% ?2%.
Claim 1 ?the preparation method of the described high temperature resistant and degradable poly(lactic acid) Wood-plastic material of 4 any one, it is characterized in that comprising the steps:
(1) preparation of blend master batch: poly(lactic acid), toughness reinforcing component are first carried out to mechanically mixing by proportioning, spray after coupling agent after vegetable fibre and other auxiliary agents are added and again mix, make poly(lactic acid) and toughness reinforcing component particle can coat one deck vegetable fibre, then use the standby blend master batch of extrusion mechanism, set extruder temperature and be 160 ℃ ?200 ℃ of %, the feed worm rotating speed be 15 ?25rpm, the driving screw rotating speed be 140 ?160rpm, pelletizing length be 2 ?4mm;
(2) composite material sheet preparation: the forcing machine that is compressing tablet by die orifice by the matrix material blend master batch of preparation is prepared the poly(lactic acid) Wood-plastic material, and setting extruder temperature is 200 ℃ of 160 ℃ of ?, and screw speed is 60rpm ?100rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN109912988A (en) * | 2019-03-13 | 2019-06-21 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of degradable resin |
| CN110117420A (en) * | 2019-05-21 | 2019-08-13 | 上海旗勋商贸有限公司 | A kind of stalk degradation material and its application |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002223A (en) * | 2010-11-02 | 2011-04-06 | 奇瑞汽车股份有限公司 | Full-biodegradable polylactic acid composite material and preparation method thereof |
| CN102093681A (en) * | 2010-12-24 | 2011-06-15 | 中科院广州化学有限公司 | Toughness-increasing polylactic acid composite material and preparation method thereof |
| CN102182854A (en) * | 2011-02-28 | 2011-09-14 | 厦门建霖工业有限公司 | Enhanced biopolymer composite plastic tap and preparation method thereof |
| CN102424719A (en) * | 2011-11-29 | 2012-04-25 | 清华大学深圳研究生院 | Straw powder-containing modified poly lactic acid composite material and preparation method thereof |
| CN102746628A (en) * | 2012-07-23 | 2012-10-24 | 惠州健昇吸塑制造有限公司 | Biodegradable temperature resistant material containing fiber base and polylactic acid and preparation method thereof |
| CN102977460A (en) * | 2012-12-12 | 2013-03-20 | 奇瑞汽车股份有限公司 | Injecting molding grade natural fiber composite material and preparation method thereof |
-
2013
- 2013-08-08 CN CN201310345147XA patent/CN103421286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002223A (en) * | 2010-11-02 | 2011-04-06 | 奇瑞汽车股份有限公司 | Full-biodegradable polylactic acid composite material and preparation method thereof |
| CN102093681A (en) * | 2010-12-24 | 2011-06-15 | 中科院广州化学有限公司 | Toughness-increasing polylactic acid composite material and preparation method thereof |
| CN102182854A (en) * | 2011-02-28 | 2011-09-14 | 厦门建霖工业有限公司 | Enhanced biopolymer composite plastic tap and preparation method thereof |
| CN102424719A (en) * | 2011-11-29 | 2012-04-25 | 清华大学深圳研究生院 | Straw powder-containing modified poly lactic acid composite material and preparation method thereof |
| CN102746628A (en) * | 2012-07-23 | 2012-10-24 | 惠州健昇吸塑制造有限公司 | Biodegradable temperature resistant material containing fiber base and polylactic acid and preparation method thereof |
| CN102977460A (en) * | 2012-12-12 | 2013-03-20 | 奇瑞汽车股份有限公司 | Injecting molding grade natural fiber composite material and preparation method thereof |
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| CN105733213A (en) * | 2014-12-10 | 2016-07-06 | 黑龙江鑫达企业集团有限公司 | High-heat-resistance polylactic acid/wood powder composite material |
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| CN104788920A (en) * | 2015-05-04 | 2015-07-22 | 苏州汉丰新材料股份有限公司 | Full-biodegradable composite material having high strength and high modulus as well as formula and preparation method of full-biodegradable composite material |
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| CN105733208B (en) * | 2016-04-22 | 2017-12-01 | 安徽省吉庆卫生用品有限公司 | A kind of production technology of ecological cotton swab |
| CN105733208A (en) * | 2016-04-22 | 2016-07-06 | 安徽省吉庆卫生用品有限公司 | Production technology for ecological cotton swabs |
| CN107841102A (en) * | 2016-09-20 | 2018-03-27 | 黑龙江鑫达企业集团有限公司 | A kind of biodegradable toughness reinforcing heat-proof polylactic acid modified resin and preparation method thereof |
| CN106349669A (en) * | 2016-09-26 | 2017-01-25 | 中国热带农业科学院农产品加工研究所 | Bagasse biodegradable plastic and preparation method thereof |
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| CN106883632A (en) * | 2017-02-28 | 2017-06-23 | 遵义医学院 | One plant tea biomass composite and preparation method and application |
| CN107446328B (en) * | 2017-07-01 | 2019-08-16 | 华南农业大学 | Soy sauce residues and lactic acid composite material and preparation method thereof and the application in 3D printing |
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| CN108774307A (en) * | 2018-07-16 | 2018-11-09 | 长春工业大学 | A kind of halogen-free flame-proof polylactic acid wood plastic composite and preparation method thereof |
| CN108774307B (en) * | 2018-07-16 | 2021-04-02 | 长春工业大学 | Halogen-free flame-retardant polylactic acid wood-plastic composite material and preparation method thereof |
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| CN109912988A (en) * | 2019-03-13 | 2019-06-21 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of degradable resin |
| CN110117420A (en) * | 2019-05-21 | 2019-08-13 | 上海旗勋商贸有限公司 | A kind of stalk degradation material and its application |
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| CN111100437A (en) * | 2019-11-25 | 2020-05-05 | 中国制浆造纸研究院有限公司 | Preparation method of degradable plastic master batch containing nanocellulose |
| CN111100437B (en) * | 2019-11-25 | 2021-12-28 | 中国制浆造纸研究院有限公司 | Preparation method of degradable plastic master batch containing nanocellulose |
| CN111154244A (en) * | 2020-01-23 | 2020-05-15 | 海南明宸新材料有限公司 | Full-biodegradable balloon bottom support and preparation method thereof |
| CN113416394A (en) * | 2020-03-03 | 2021-09-21 | 诺思贝瑞新材料科技（苏州）有限公司 | Polylactic acid composition for industrial 3D printing and preparation method thereof |
| CN111410828A (en) * | 2020-05-15 | 2020-07-14 | 运城学院 | Preparation method of plant wood powder/montmorillonite filled high-performance fully biodegradable polylactic acid composite material |
| CN112029246A (en) * | 2020-08-14 | 2020-12-04 | 安徽丰原生物新材料有限公司 | Polylactic acid modified material containing plant fiber and preparation method thereof |
| CN112210196A (en) * | 2020-10-10 | 2021-01-12 | 莱涤新材料(宁波)有限公司 | Biodegradable polylactic acid product and preparation method thereof |
| CN113185815A (en) * | 2021-05-17 | 2021-07-30 | 中北大学 | Biodegradable material for improving PBSeT puncture resistance by using vinegar residue and preparation method thereof |
| CN114133717A (en) * | 2021-11-30 | 2022-03-04 | 广东国立科技股份有限公司 | Bamboo powder filled biodegradable material and preparation method thereof |
| CN115160748A (en) * | 2022-07-13 | 2022-10-11 | 雄安创新研究院 | Reed-based biodegradable fertilizing seedling raising plug tray and preparation method thereof |
| CN115322543A (en) * | 2022-08-10 | 2022-11-11 | 浙江旺林生物科技有限公司 | Polylactic acid/polycaprolactone/plant carbon black composite material and preparation method thereof |
| CN115466493A (en) * | 2022-09-07 | 2022-12-13 | 华南师范大学 | Biodegradable composite material and preparation method and application thereof |
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