CN103122131A - Fully-degradable biomass composite material and preparation method thereof - Google Patents
Fully-degradable biomass composite material and preparation method thereof Download PDFInfo
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- CN103122131A CN103122131A CN2012101155496A CN201210115549A CN103122131A CN 103122131 A CN103122131 A CN 103122131A CN 2012101155496 A CN2012101155496 A CN 2012101155496A CN 201210115549 A CN201210115549 A CN 201210115549A CN 103122131 A CN103122131 A CN 103122131A
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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
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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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
-
- 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
Abstract
The invention relates to a fully-degradable biomass composite material and a preparation method thereof, and aims to provide a fully-degradable biomass composite material which has the good heat resistant performance and the good mechanical performance as well as the definite toughness and strength and can meet the using requirement of tableware and other articles in daily life and a preparation method thereof. The composite material comprises the following components in parts by weight: 100 parts of biodegradable polyester hybrid materials, 2 to 10 parts of bulking agents, 0.3 to 5 parts of nucleating agents, 5 to 15 parts of plasticizers and 0.1 to 2 parts of lubricants, wherein the biodegradable polyester hybrid material is obtained by adding polylactic acid (PLA) and/or polybutylece terephthalate-adipic acid copolyester (PBAT) into 3-para-hydroxybutyrate-3-hydroxy acid copolyester (PHBH) and mixing the two copolyesters according to the adding amount of each copolyester of 10 to 90 weight parts.
Description
Technical field
The present invention relates to a kind of biomass full degradable matrix material and preparation method thereof.
Background technology
In recent years, people increase gradually to the demand of plastics, but because the conventional plastic degradation time is long, and recycle and get half the result with twice the effort, and consequent white pollution phenomenon is also increasingly sharpened.
The tablewares such as disposable knife-fork-spoon belong to easily-consumed products, and consumption is large and work-ing life is short, the disposable knife-fork-spoon tableware that the conventional plastic such as polypropylene are produced become cause environmental pollution one of reason.The use of the Biodegradable materials such as poly(lactic acid) can solve this difficult problem.
Present degradable dinner set is mainly the edible powder tablewares such as papery, agricultural crop straw or starch, but these tableware rigidity that prior art is produced are relatively poor, and heat resisting temperature is low, is difficult to satisfy service requirements.
Poly(lactic acid) (PLA) has the advantages such as rigidity is strong, degree of crystallinity is large, transparency is good, good solubility-resistence energy, and obtained the approval of FDA Food and Drug Administration (FDA), poly(lactic acid) also has reasonable Biodegradable, can degrade under compost or edaphic condition.Be applicable to produce disposable knife-fork-spoon tableware.But the fragility of poly(lactic acid) is very strong, elongation at break is low, processing stability is poor, and the heat resisting temperature of product is low, can't satisfy the service requirements of tableware.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of material thermal resistance energy, mechanical property is good, has certain toughness and intensity, can satisfy biomass full degradable matrix material of the article user demands such as tableware in daily life and preparation method thereof.
Biomass full degradable matrix material of the present invention comprises the Biodegradable polyester class mixture of 100 weight parts, the expanding material of 2-10 weight part, the nucleator of 0.3-5 weight part, the softening agent of 5-15 weight part, the lubricant of 0.1-2 weight part;
Described Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH).
Biomass full degradable matrix material of the present invention, wherein said poly(lactic acid) weight-average molecular weight Mw is 10-40 ten thousand, described terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight Mw is 10-30 ten thousand, in described 3-hydroxybutyrate/3-hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%, the weight part of described expanding material is 4-8, the weight part of described nucleator is 0.8-3, and the weight part of described softening agent is 7-13, and the weight part of described lubricant is 0.5-1.5.
Biomass full degradable matrix material of the present invention, wherein said expanding material are benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Described nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Described lubricant is amine hydroxybenzene, stearylamide or calcium stearate, and the weight part of described expanding material is 5-6, and the weight part of described nucleator is 1.5-2, and the weight part of described softening agent is 8-10, and the weight part of described lubricant is 0.8-1.2.
Biomass full degradable composite manufacture method is characterized in that comprising the steps:
A, the following raw material of preparation:
Biodegradable polyester class mixture, expanding material, nucleator, softening agent, lubricant;
Described Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH);
Above-mentioned various raw materials are placed in drying oven dry, drying temperature is 40 ℃-90 ℃, and be 2-24 hour time of drying;
After B, drying, Biodegradable polyester class mixture according to 100 weight parts, the expanding material of 2-10 weight part, 0.3-5 the nucleator of weight part, the softening agent of 5-15 weight part, the ratio of the lubricant of 0.1-2 weight part joins raw material in high-speed mixer, in high-speed mixer, raw material is mixed, the high-speed mixing time is 3-30 minute;
C, the raw material after high-speed mixing is joined in twin screw extruder, the feeding section temperature of twin screw extruder is 80-120 ℃, and compression is 110-180 ℃ with the fluxing zone temperature, and die temperature is 130-170 ℃, the screw speed of twin screw extruder is 50-120rpm, through double-screw extruding pelletizing;
D, the granulation that step C is obtained join in single screw extrusion machine, one district's temperature of single screw extrusion machine is 110-150 ℃, two district's temperature are 130-180 ℃, three district's temperature are 130-180 ℃, die temperature 40-60 ℃, through single Screw Extrusion injection molding, namely can be made into biomass full degradable matrix material of the present invention.
Biomass full degradable composite manufacture method of the present invention, the Mw of poly(lactic acid) weight-average molecular weight described in wherein said steps A is 10-40 ten thousand, described terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight Mw is 10-30 ten thousand, and in described 3-hydroxybutyrate-3-hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%; Described expanding material is benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Described nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Described lubricant is amine hydroxybenzene, stearylamide or calcium stearate; Described drying temperature is 60 ℃-80 ℃, and be 6-24 hour time of drying, and the weight part of described expanding material is 4-8, and the weight part of described nucleator is 0.8-3, and the weight part of described softening agent is 7-13, and the weight part of described lubricant is 0.5-1.5.
Biomass full degradable composite manufacture method of the present invention, the high-speed mixing time described in wherein said step B is 5-20 minute, the weight part of described expanding material is 5-6, the weight part of described nucleator is 1.5-2, the weight part of described softening agent is 8-10, and the weight part of described lubricant is 0.8-1.2.
Compared with prior art beneficial effect of the present invention is:
biomass full degradable matrix material of the present invention and preparation method thereof, adopt the distinctive composition and engineering step of the present invention, the biomass full degradable matrix material of producing, its resistance toheat is obviously promoted, dimension card heat resisting temperature is increased to more than 100 ℃ from 77.3 ℃ of pure poly(lactic acid), the mechanical property of material is significantly increased, elongation at break obtains larger raising, the composite modified polylactic resin that belongs to a kind of fully biodegradable, this matrix material has good over-all properties, can be used for producing the tablewares such as disposable knife-fork-spoon, thereby satisfy the article user demands such as tableware in daily life.
Embodiment
The below is described in further detail the specific embodiment of the present invention.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
biomass full degradable matrix material of the present invention, the Biodegradable polyester class mixture that comprises 100 weight parts, the expanding material of 2 weight parts or 3 weight parts or 4 weight parts or 5 weight parts or 6 weight parts or 7 weight parts or 8 weight parts or 10 weight parts, 0.3 the nucleator of weight part or 0.6 weight part or 0.9 weight part or 1.2 weight parts or 1.9 weight parts or 2.8 weight parts or 3.5 weight parts or 3.8 weight parts or 4.5 weight parts or 5 weight parts, the softening agent of 5 weight parts or 6 weight parts or 7 weight parts or 8 weight parts or 10 weight parts or 12 weight parts or 14 weight parts or 15 weight parts, 0.1 the lubricant of weight part 0.3 weight part or 0.6 weight part or 0.9 weight part or 1.4 weight parts or 1.8 weight parts or 2 weight parts,
Above-mentioned Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH).
Above-mentioned poly(lactic acid) weight-average molecular weight Mw is 10-40 ten thousand, terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight is 10-30 ten thousand, in 3-hydroxybutyrate-3-hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%, the preferred 4-8 of the weight part of expanding material, the preferred 0.8-3 of the weight part of nucleator, the preferred 7-13 of the weight part of softening agent, the preferred 0.5-1.5 of the weight part of lubricant.
Above-mentioned expanding material is benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Above-mentioned nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Above-mentioned lubricant is amine hydroxybenzene, stearylamide or calcium stearate, and the weight part of expanding material is preferably 5-6, and the weight part of nucleator is preferably 1.5-2, and the weight part of softening agent is preferably 8-10, and the weight part of lubricant is preferably 0.8-1.2.
Biomass full degradable composite manufacture method of the present invention comprises the steps:
A, the following raw material of preparation:
Biodegradable polyester class mixture, expanding material, nucleator, softening agent, lubricant;
Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH);
Above-mentioned various raw materials are placed in drying oven dry, drying temperature is 40 ℃-90 ℃, and be 2-24 hour time of drying;
B, after drying, Biodegradable polyester class mixture according to 100 weight parts, the expanding material of 2 weight parts or 3 weight parts or 4 weight parts or 5 weight parts or 6 weight parts or 7 weight parts or 8 weight parts or 10 weight parts, 0.3 the nucleator of weight part or 0.6 weight part or 0.9 weight part or 1.2 weight parts or 1.9 weight parts or 2.8 weight parts or 3.5 weight parts or 3.8 weight parts or 4.5 weight parts or 5 weight parts, the softening agent of 5 weight parts or 6 weight parts or 7 weight parts or 8 weight parts or 10 weight parts or 12 weight parts or 14 weight parts or 15 weight parts, 0.1 the ratio of the lubricant of weight part 0.3 weight part or 0.6 weight part or 0.9 weight part or 1.4 weight parts or 1.8 weight parts or 2 weight parts, raw material is joined in high-speed mixer, in high-speed mixer, raw material is mixed, the high-speed mixing time is 3-30 minute,
C, the raw material after high-speed mixing is joined in twin screw extruder, the feeding section temperature of twin screw extruder is 80-120 ℃, compression is 110-180 ℃ with the fluxing zone temperature, die temperature is 130-170 ℃, the screw speed of twin screw extruder is 50-120rpm, through double-screw extruding pelletizing, make biomass full degradable matrix material of the present invention;
D, the granulation that step C is obtained join in single screw extrusion machine, and district's temperature of single screw extrusion machine is 110-150 ℃, and two district's temperature are 130-180 ℃, and three district's temperature are 130-180 ℃, and die temperature 40-60 ℃, through single Screw Extrusion injection molding.
In above-mentioned steps A, poly(lactic acid) weight-average molecular weight Mw is 10-40 ten thousand, and terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight Mw is 10-30 ten thousand, and 3-hydroxybutyrate--in the hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%; Expanding material is benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Lubricant is amine hydroxybenzene, stearylamide or calcium stearate; Preferred 60 ℃-80 ℃ of drying temperature, preferred 6-24 hour time of drying, the preferred 4-8 of the weight part of expanding material, the preferred 0.8-3 of the weight part of nucleator, the preferred 7-13 of the weight part of softening agent, the preferred 0.5-1.5 of the weight part of lubricant.
Above-mentioned steps B high speed mixing time is preferably 5-20 minute, and the weight part of expanding material is preferably 5-6, and the weight part of nucleator is preferably 1.5-2, and the weight part of softening agent is preferably 8-10, and the weight part of lubricant is preferably 0.8-1.2.
After double-screw extruding pelletizing, and the injection standard batten, according to GB/T1040.2--2006 test tensile property, measure vicat softening temperature according to GB/T1633--2000, measure impact property according to GB/T1043.1--2008.
Adopt the such scheme resulting materials, more than its tensile strength can reach 55.8MPa, elongation at break was not less than 60%, and resistance to impact shock is at 50.9Kj/m
2Above, vicat softening temperature is not less than 100 ℃.
Embodiment 2:
Take each component by following weight: PLA:80 gram, PHBH:20 gram, ethene and glycidyl methacrylate copolymer: 5 grams, dibenzylidene sorbitol: 2 grams, tributyl citrate: 10 grams, amine hydroxybenzene: 0.5 gram.
After double-screw extruding pelletizing, and the injection standard batten, according to GB/T1040.2-2006 test tensile property, measure vicat softening temperature according to GB/T1633--2000, measure impact property according to GB/T1043.1--2008.
Resulting materials performance: tensile strength: 65.8MPa, elongation at break: 60.5%, resistance to impact shock: 68.9Kj/m
2, vicat softening temperature: 112.5 ℃.
Embodiment 3:
Take each component by following weight: PLA:60 gram, PHBH:10 gram, PBAT:30 gram, ethene and glycidyl methacrylate copolymer: 5 grams, talcum powder: 5 grams, tributyl citrate: 10 grams, amine hydroxybenzene: 0.5 gram.
Resulting materials performance: tensile strength: 57.3MPa, elongation at break: 164.2%, resistance to impact shock: 54.8Kj/m
2, vicat softening temperature: 105.6 ℃.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a biomass full degradable matrix material, is characterized in that: comprise the Biodegradable polyester class mixture of 100 weight parts, the expanding material of 2-10 weight part, the nucleator of 0.3-5 weight part, the softening agent of 5-15 weight part, the lubricant of 0.1-2 weight part;
Described Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH).
2. biomass full degradable matrix material according to claim 1, it is characterized in that: described poly(lactic acid) (PLA) weight-average molecular weight Mw is 10-40 ten thousand, described terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight Mw is 10-30 ten thousand, in described 3-hydroxybutyrate-3-hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%, the weight part of described expanding material is 4-8, the weight part of described nucleator is 0.8-3, the weight part of described softening agent is 7-13, and the weight part of described lubricant is 0.5-1.5.
3. biomass full degradable matrix material according to claim 2, it is characterized in that: described expanding material is benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Described nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Described lubricant is amine hydroxybenzene, stearylamide or calcium stearate, and the weight part of described expanding material is 5-6, and the weight part of described nucleator is 1.5-2, and the weight part of described softening agent is 8-10, and the weight part of described lubricant is 0.8-1.2.
4. biomass full degradable composite manufacture method, is characterized in that comprising the steps:
A, the following raw material of preparation:
Biodegradable polyester class mixture, expanding material, nucleator, softening agent, lubricant;
Described Biodegradable polyester class mixture is mixed to get according to every kind of 10-90 weight ratio for to add poly(lactic acid) (PLA) and/or terephthalic acid-butyleneglycol-hexanodioic acid copolyesters (PBAT) in 3-hydroxybutyrate-3-hydroxycaproic acid copolyesters (PHBH);
Above-mentioned various raw materials are placed in drying oven dry, drying temperature is 40 ℃-90 ℃, and be 2-24 hour time of drying;
After B, drying, Biodegradable polyester class mixture according to 100 weight parts, the expanding material of 2-10 weight part, 0.3-5 the nucleator of weight part, the softening agent of 5-15 weight part, the ratio of the lubricant of 0.1-2 weight part joins raw material in high-speed mixer, in high-speed mixer, raw material is mixed, the high-speed mixing time is 3-30 minute;
C, the raw material after high-speed mixing is joined in twin screw extruder, the feeding section temperature of twin screw extruder is 80-120 ℃, compression is 110-180 ℃ with the fluxing zone temperature, die temperature is 130-170 ℃, the screw speed of twin screw extruder is 50-120rpm, through double-screw extruding pelletizing, make biomass full degradable matrix material of the present invention;
D, the pellet that step C is obtained join in single screw extrusion machine, and district's temperature of single screw extrusion machine is 110-150 ℃, and two district's temperature are 130-180 ℃, and three district's temperature are 130-180 ℃, and die temperature 40-60 ℃, through single Screw Extrusion injection molding.
5. biomass full degradable composite manufacture method according to claim 4, it is characterized in that: the Mw of poly(lactic acid) weight-average molecular weight described in described steps A is 10-40 ten thousand, described terephthalic acid-butyleneglycol-hexanodioic acid copolyesters weight-average molecular weight Mw is 10-30 ten thousand, and in described 3-hydroxybutyrate-3-hydroxycaproic ester copolyesters, 3-hydroxycaproic acid content is 6-11%; Described expanding material is benzoyl peroxide or ethene and glycidyl methacrylate copolymer; Described nucleator is talcum powder, boron nitride, terephthalic acid, dibenzylidene sorbitol or ethylenebisstearamide; Described softening agent is glycerine, stearic acid, ethyl lactate, tributyl citrate, polyoxyethylene glycol or epoxy soybean oil; Described lubricant is amine hydroxybenzene, stearylamide or calcium stearate; Described drying temperature is 60 ℃-80 ℃, and be 6-24 hour time of drying, and the weight part of described expanding material is 4-8, and the weight part of described nucleator is 0.8-3, and the weight part of described softening agent is 7-13, and the weight part of described lubricant is 0.5-1.5.
6. biomass full degradable composite manufacture method according to claim 5, it is characterized in that: the high-speed mixing time described in described step B is 5-20 minute, the weight part of described expanding material is 5-6, the weight part of described nucleator is 1.5-2, the weight part of described softening agent is 8-10, and the weight part of described lubricant is 0.8-1.2.
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| CN103571165A (en) * | 2013-11-06 | 2014-02-12 | 江南大学 | Polylactic acid composite material and preparation method thereof |
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| CN113150519A (en) * | 2021-04-26 | 2021-07-23 | 深圳市华潽新材料有限公司 | Full-biodegradable material with controllable period |
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| CN114230993A (en) * | 2022-01-28 | 2022-03-25 | 唐山师范学院 | Biodegradable PHBH-based composite material and preparation method thereof |
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