CN1673276A - Polylactic acid resin composition - Google Patents
Polylactic acid resin composition Download PDFInfo
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- CN1673276A CN1673276A CN 200510050273 CN200510050273A CN1673276A CN 1673276 A CN1673276 A CN 1673276A CN 200510050273 CN200510050273 CN 200510050273 CN 200510050273 A CN200510050273 A CN 200510050273A CN 1673276 A CN1673276 A CN 1673276A
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- polylactic acid
- resin composition
- acid resin
- polylactic
- composition
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Abstract
The present invention relates to one kind of polylactic acid resin composition. The polylactic acid resin composition consists of polylactic acid resin 50-85 wt%, glycecol triacetate 15-50 wt% and lubricant 0.01-1 wt%. The plasticized polylactic acid resin composition is especially suitable for making polylactic acid film, and has the features of low cost, high toughness, high tear resistance and high transparency.
Description
(1) technical field
The present invention relates to a kind of polylactic acid resin composition.
(2) background technology
Polylactic resin is a kind of plastics of novel fully biodegradable, its raw material comes from corn, be polymerized by fermentation, so be called the corn plastics again, be first kind of biodegradable plastic that adopts the synthetic large-scale industrial production of biological fermentation process in the world, polylactic resin is that price is higher in the problem one of application facet maximum at present, the 2nd, and material property is more crisp, can not prepare the film based packaging material.For biodegradable plastic, disposable film based packaging material is its main field of application.Chinese patent 03117482 increases polylactic acid membrane toughness by the medical softening agent that adds 2-15%, is used for the growth regeneration membrane of the soft or hard tissue of palatorrhaphy.
(3) summary of the invention
The object of the invention is to provide that a kind of snappiness is good, the polylactic acid resin composition of blown film excellent property.
Described polylactic acid resin composition, mainly form by the component of following weight part:
Polylactic resin 50～85;
Vanay 15～50;
Lubricant 0.01～1.
The polylactic resin that adopts can be equal poly(lactic acid) resin, also can be the copolymerization lactic acid resin that lactic acid and other monomer copolymerizations form.
Vanay is as softening agent, and good with the polylactic resin intermiscibility, plasticization effect is good, and its preferred consumption is 15～25% of a composition quality.It is bonding that the effect of lubricant prevents that mainly film blowing process from taking place, and improves the opening of plasticized poly lactic acid film.Described lubricant can be one of following or more than one arbitrary combination: fatty acid acyl aminated compounds, fatty acid metal soap compounds, long chain fatty acid.Fatty acid acyl aminated compounds such as ethylene bis stearamide (EBS), methylene bis stearylamide, stearic amide, erucicamide and amine hydroxybenzene, long chain fatty acid such as lauric acid, stearic acid, oleic acid, nutmeg acid etc.
According to actual needs, described composition can also add the additive of one of following or more than one arbitrary combination: antioxidant, UV light absorber, stablizer, dyestuff, pigment, filler, fire retardant, static inhibitor.
The preparation of plasticized poly lactic acid resin combination can be adopted the method for melting mixing, the method that also can adopt solid phase to absorb.The plasticized poly lactic acid resin combination that obtains can carry out the extrusion-blown modling of film or extrude flow casting molding.
Adopt the plasticized poly lactic acid resin of the present invention's preparation to be particularly suitable for making polylactic acid film, have that cost is low, snappiness good, an anti tear, high transparent characteristics.
(4) embodiment
The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this.
Embodiment 1
Press polylactic resin 85 gram, vanay 15 grams, EBS 0.1 gram is filled a prescription, and carries out melting mixing 5 minutes in two roller mills, and 160 ℃ of plasticating temperatures are pressed into the thin slice of 1.5mm, 180 ℃ of press temperatures with the material after plasticating in oil press; The plasticized poly lactic acid that compacting obtains carries out Mechanics Performance Testing and transport property test.The result who obtains: tensile strength 36.2MPa, 206%, 80 ℃ of the elongation at break migration amount after 50 hours is 1.32%.
Embodiment 2
Press polylactic resin 80 gram, vanay 20 grams, amine hydroxybenzene 0.1 gram is filled a prescription, and carries out melting mixing 5 minutes in two roller mills, and 160 ℃ of plasticating temperatures are pressed into the thin slice of 1.5mm, 180 ℃ of press temperatures with the material after plasticating in oil press; The plasticized poly lactic acid that compacting obtains carries out Mechanics Performance Testing and transport property test.The result who obtains: tensile strength 27.6MPa, 388%, 80 ℃ of the elongation at break migration amount after 50 hours is 3.46%.
Embodiment 3
Press polylactic resin 75 gram, vanay 25 grams, amine hydroxybenzene 0.1 gram is filled a prescription, and carries out melting mixing 5 minutes in two roller mills, and 160 ℃ of plasticating temperatures are pressed into the thin slice of 1.5mm, 180 ℃ of press temperatures with the material after plasticating in oil press; The plasticized poly lactic acid that compacting obtains carries out Mechanics Performance Testing and transport property test.The result who obtains: tensile strength 22.3MPa, 421%, 80 ℃ of the elongation at break migration amount after 50 hours is 5.12%.
Embodiment 4
Press polylactic resin 70 gram, vanay 30 grams, amine hydroxybenzene 0.1 gram is filled a prescription, and carries out melting mixing 5 minutes in two roller mills, and 160 ℃ of plasticating temperatures are pressed into the thin slice of 1.5mm, 180 ℃ of press temperatures with the material after plasticating in oil press; The plasticized poly lactic acid that compacting obtains carries out Mechanics Performance Testing and transport property test.The result who obtains: tensile strength 18.4MPa, 473%, 80 ℃ of the elongation at break migration amount after 50 hours is 5.80%.
Embodiment 5
Press polylactic resin 70 gram, vanay 30 grams, stearic acid 0.1 gram is filled a prescription, and carries out melting mixing 5 minutes in two roller mills, and 160 ℃ of plasticating temperatures are pressed into the thin slice of 1.5mm, 180 ℃ of press temperatures with the material after plasticating in oil press; The plasticized poly lactic acid that compacting obtains carries out Mechanics Performance Testing and transport property test.The result who obtains: tensile strength 18.4MPa, 473%, 80 ℃ of the elongation at break migration amount after 50 hours is 5.80%.
Claims (5)
1, a kind of polylactic acid resin composition, mainly form by the component of following weight part:
Polylactic resin 50～85;
Vanay 15～50;
Lubricant 0.01～1.
2, polylactic acid resin composition as claimed in claim 1 is characterized in that described vanay accounts for 15～25% of composition quality.
3, polylactic acid resin composition as claimed in claim 1 or 2 is characterized in that described lubricant is one of following or more than one arbitrary combination: fatty acid acyl aminated compounds, fatty acid metal soap compounds, long chain fatty acid.
4, polylactic acid resin composition as claimed in claim 1, it is characterized in that described composition also contains the additive of one of following or more than one arbitrary combination: antioxidant, UV light absorber, stablizer, dyestuff, pigment, filler, fire retardant, static inhibitor.
5, polylactic acid resin composition as claimed in claim 3, it is characterized in that described composition also contains the additive of one of following or more than one arbitrary combination: antioxidant, UV light absorber, stablizer, dyestuff, pigment, filler, fire retardant, static inhibitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100502738A CN1304471C (en) | 2005-04-15 | 2005-04-15 | Polylactic acid resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100502738A CN1304471C (en) | 2005-04-15 | 2005-04-15 | Polylactic acid resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1673276A true CN1673276A (en) | 2005-09-28 |
| CN1304471C CN1304471C (en) | 2007-03-14 |
Family
ID=35046063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100502738A Expired - Fee Related CN1304471C (en) | 2005-04-15 | 2005-04-15 | Polylactic acid resin composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1304471C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9102782B2 (en) | 2011-08-12 | 2015-08-11 | China Petroleum & Chemical Corporation | Transparent copolyester, preparing method thereof and articles made from the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276010C (en) * | 2003-03-18 | 2006-09-20 | 四川迪康科技药业股份有限公司 | Poly lactic acid composition film and its preparing method and use |
| JP4163060B2 (en) * | 2003-07-18 | 2008-10-08 | 理研ビタミン株式会社 | Agricultural resin composition and agricultural material |
| JP2005036088A (en) * | 2003-07-18 | 2005-02-10 | Riken Vitamin Co Ltd | Resin composition for food packaging and food package |
| CN1644794A (en) * | 2004-12-17 | 2005-07-27 | 中国科学院长春应用化学研究所 | Completely biological degradable polylactic coating materials |
-
2005
- 2005-04-15 CN CNB2005100502738A patent/CN1304471C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9102782B2 (en) | 2011-08-12 | 2015-08-11 | China Petroleum & Chemical Corporation | Transparent copolyester, preparing method thereof and articles made from the same |
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| Publication number | Publication date |
|---|---|
| CN1304471C (en) | 2007-03-14 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Seemore New Material Technology Co., Ltd. Assignor: Zhejiang University of Technology Contract record no.: 2010330001867 Denomination of invention: Polylactic acid resin composition Granted publication date: 20070314 License type: Exclusive License Open date: 20050928 Record date: 20100916 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20140415 |