CN106147157A - Lactic acid composite material and products thereof - Google Patents
Lactic acid composite material and products thereof Download PDFInfo
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- CN106147157A CN106147157A CN201510137377.6A CN201510137377A CN106147157A CN 106147157 A CN106147157 A CN 106147157A CN 201510137377 A CN201510137377 A CN 201510137377A CN 106147157 A CN106147157 A CN 106147157A
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- lactic acid
- composite material
- acid composite
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- resin
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Abstract
A kind of lactic acid composite material and products thereof, described lactic acid composite material represents by weight and includes: polylactic resin 50-95 part；Polyvinyl acetate resins 1-30 part；Polyadipate/butylene terephthalate resin 1-50 part；Lubricant 0.5-10 part；Impact modification agent 1-10 part melt strength enhancers 0.1-10 part；Nucleator 0.3-30 part.Described product is the product produced after described lactic acid composite material molding.The lactic acid composite material of the present invention substantially increases impact resistance and the heat resisting temperature of polylactic resin, so that lactic acid composite material can not only be applied on people's livelihood articles for use, it is also possible to be applied in the field of electronic correlation.
Description
[technical field]
The invention belongs to field of material technology, be specifically related to a kind of lactic acid composite material and products thereof.
[background technology]
Along with the enhancing of environmental consciousness, the material with Biodegradable is paid attention to by masses day by day.Except making
Outside the improvement of performance, tend to develop material and the product with high additive value.
Polylactic acid (PLA) is i.e. a kind of novel biodegradation material, use reproducible plant resources (as
Semen Maydis) starch material that proposed makes, and it has good biodegradability, can be by nature after using
In boundary, microorganism is degradable, ultimately generates carbon dioxide and water, free from environmental pollution, the environment friend being well recognized as
Good material.Polylactic acid is applicable to the various processing methods such as blowing, thermoplastic, easy to process, applies quite varied.
Can be used for processing from industry to civilian various plastics, packaged food, fast food lunch-box, non-woven fabrics, work
In the field such as industry and civilian cloth.
But, polylactic acid but there is also its own shortcomings: the toughness of (1) poly-lactic acid material is low, causes impact resistance
Performance is the best；(2) heat resisting temperature is relatively low.Therefore, polylactic acid receives certain restriction in use.Must
Disadvantages mentioned above must be improved, just can increase polylactic acid application surface commercially.
In view of this, it is necessary in fact to develop a kind of lactic acid composite material and products thereof, to solve polylactic acid
The defect that impact resistance is the best and heat resisting temperature is relatively low.
[summary of the invention]
Therefore, it is an object of the invention to provide a kind of lactic acid composite material and products thereof, this composite and
Its product can solve the problem that the problem that the impact resistance of above-mentioned polylactic acid is the best and heat resisting temperature is relatively low.
In order to achieve the above object, the lactic acid composite material of the present invention, it represents by weight and includes:
Alternatively, it is 210 DEG C in ambient temperature, when load is 2.16Kg, melting of described polylactic resin
Index is 3-80g/10min.
Alternatively, in described polylactic resin, L lactic acid ratio in the synthesis of polylactic resin is 99.5%
Above.
Alternatively, it is 150 DEG C in ambient temperature, when load is 2.16Kg, described polyvinyl acetate resins
Melt index be 7-60g/10min, be more preferably 10-30g/10min.
Alternatively, the melt temperature of described polyadipate/butylene terephthalate resin is at 85-120 DEG C.
Alternatively, described lubricant be ester type flow ability modifying agent, vinyl bis-stearamides, low-molecular-weight gather
One or more of ethylene waxes, erucyl amide and stearic lines compound.
Alternatively, described impact modification agent is the impact resistance modification agent of thermoplastic elastomer (TPE) and nucleocapsid cladded type
One or more compound.
Alternatively, described melt strength enhancers is containing epoxy functionalized sill and the starlike copolymerization of oleic series
One or more of thing compound.
Alternatively, during described nucleator is inorganic nucleator, organic nucleating agent and polymer crystallization nucleator
At least one.
Alternatively, described lactic acid composite material also include antistatic agent, antioxidant, UV absorbent,
At least one in releasing agent and coloring agent.
It addition, the present invention also provides for a kind of product, described product is after described lactic acid composite material molding
The product produced.
Compared to prior art, the lactic acid composite material of the present invention, gather by adding in polylactic resin
Vinyl acetate resin, polyadipate/composition such as butylene terephthalate resin and lubricant, then utilizes
Modification technology makes composite, and this composite substantially increases the impact resistance of polylactic resin and resistance to
Hot temperature so that lactic acid composite material can not only be applied on people's livelihood articles for use, as tableware, stationery,
In the fields such as toy, it is also possible to be applied in the field of electronic correlation.
[detailed description of the invention]
The lactic acid composite material of the present invention, it represents by weight and includes:
Polylactic resin 50-95 part, is 210 DEG C in ambient temperature, when load is 2.16Kg, and described poly-breast
The melt index of acid resin is 3-80g/10min, and in polylactic resin, L lactic acid is in the synthesis of polylactic resin
In ratio be more than 99.5%, its crystallization rate is preferable, in the polylactic resin of crystallization rate optimum efficiency,
The ratio regular meeting of L lactic acid is 99.9%；
Polyvinyl acetate resins 1-30 part, is 150 DEG C in ambient temperature, when load is 2.16Kg, and institute
The melt index stating polyvinyl acetate resins is 7-60g/10min, and wherein melt index is at 10-30g/10
Have more preferably effect during min, increase the merit of material molten intensity owing to polyvinyl acetate resins itself has
Energy, and promote the compatibility of polylactic resin and adipic acid/butylene terephthalate resin, blown film can be made
Film bubble stable；
Polyadipate/butylene terephthalate resin 1-50 part, described polyadipate/p-phthalic acid fourth two
The melt temperature of ester resin is at 85-120 DEG C；
Lubricant 0.5-10 part, described lubricant is ester type flow ability modifying agent, vinyl bis-stearamides, low
One or more of molecular weight polyethylene wax, erucyl amide and stearic lines compound, and wherein flow with ester type
Modifying agent is that main body carries out compound recipe collocation, can reach optimum efficiency in mobility and physical property；
Impact modification agent 1-10 part, described impact modification agent is the resistance to punching of thermoplastic elastomer (TPE) and nucleocapsid cladded type
Hit modification agent one or more compound, wherein thermoplastic elastomer (TPE) comprises styrenic elastomer, graft modification
Styrene series elastomer, ethylene based elastomers and graft modification ethylene based elastomers, the resistance to punching of nucleocapsid cladded type
Hit modification agent and comprise acrylic acid cladded type and styrene-acrylonitrile cladded type；
Melt strength enhancers 0.3-10 part, described melt strength enhancers is containing epoxy functionalized sill and third
One or more of olefin(e) acid series star-shaped copolymer compound, and wherein the functional number of epoxide functional groups must control
9-20, physical property best results；
Nucleator 0.3-30 part, described nucleator is that inorganic nucleator, organic nucleating agent and polymer crystallization become
At least one in core agent；Described inorganic nucleator is laminar silicate compounds, inorganic salt compound, nothing
Machine nonmetal oxide or material with carbon element, wherein laminar silicate compounds is Pulvis Talci, Kaolin, montmorillonite
Or Muscovitum, inorganic salt compound is calcium lactate, basic mineral aluminium compound, calcium carbonate or barium sulfate, inorganic
Nonmetal oxide is silicon dioxide, and material with carbon element is white carbon black, carbon nanometer tube or fullerene；Described organic nucleation
Agent is aromatic series and aliphatic amide compounds, Sorbitol compounds, Metal organophosphates chemical combination
Thing, benzoic acid salt compound, catechol, hydroquinone two hydroxy ethyl ether, 4,4'-dihydroxy hexichol first
The compounds such as alkane or 1,4-Benzodiazepines；Polymer crystallization nucleator is polyglycolic acid and derivant, poly-second
Alkyd and derivant thereof, carbon fiber, wood powder, organic fiber one or more compound.
Described lactic acid composite material also includes antistatic agent, antioxidant, UV absorbent, releasing agent
And at least one in coloring agent.
For the purpose of the present invention, technological means and technology effect there being further understanding, in conjunction with concrete real
Execute example to be described as follows.
Embodiment 1
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
Embodiment 2
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
Embodiment 3
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
Embodiment 4
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
Embodiment 5
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
Embodiment 6
First, weigh after polylactic resin moisture being down to below 0.05-0.1%；Then, by polylactic resin
With the polyvinyl acetate resins weighed, polyadipate/butylene terephthalate resin, lubricant, impact
Modification agent, melt strength enhancers, nucleator and antioxidant utilize single shaft agitator to stir 10 minutes；By upper
State mixture and be added separately in double screw extruder melt extrude pelletize.
After various embodiments above melt extrudes pelletize, then injection mo(u)lding GB standard testing batten on injection machine,
By the mechanical performance of GB standard testing resulting materials, test result is as shown in table 1:
Table 1: the test result of each embodiment
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Melt index (g/10min) | 8.79 | 5.29 | 4.45 | 4.12 | 38.6 | 5.11 |
| Bending strength (MPa) | 82.2 | 75.1 | 70.1 | 65.12 | 73.2 | 83.9 |
| Bending modulus (MPa) | 4012 | 3673 | 3211 | 2813 | 3518 | 4111 |
| Impact strength (KJ/m2) | 7.2 | 8.6 | 8.9 | 11.7 | 7.7 | 7.4 |
| Hot strength (MPa) | 55.3 | 51.5 | 50.81 | 45.86 | 50.4 | 57.9 |
| Elongation at break (%) | 7.46 | 8.57 | 9.19 | 12.45 | 6.12 | 5.11 |
| Heat distortion temperature (DEG C) | 113 | 105 | 102 | 92 | 102 | 115 |
By table 1 it follows that in embodiment by polylactic resin add polyvinyl acetate resins,
Polyadipate/composition such as butylene terephthalate resin and lubricant, then utilizes modification technology to make compound
Material, this composite is keeping outside good mechanical performance and physical property, is also substantially increasing polylactic acid
The impact resistance of resin and heat resisting temperature, wherein impact resistance is up to 11.7KJ/m2, in load it is
During 1.8MPa, heat distortion temperature is up to 115 DEG C.
It addition, the present invention also provides for a kind of product, described product is after described lactic acid composite material molding
The product produced, the product produced after lactic acid composite material molding can not only be applied on people's livelihood articles for use,
In the fields such as tableware, stationery, toy, it is also possible to be applied in the field of electronic correlation.
Claims (11)
1. a lactic acid composite material, it is characterised in that described lactic acid composite material table by weight
Show and include:
2. lactic acid composite material as claimed in claim 1, it is characterised in that be 210 DEG C in ambient temperature,
When load is 2.16Kg, the melt index of described polylactic resin is 3-80g/10min.
3. lactic acid composite material as claimed in claim 2, it is characterised in that in described polylactic resin
L lactic acid ratio in the synthesis of polylactic resin is more than 99.5%.
4. lactic acid composite material as claimed in claim 1, it is characterised in that be 150 DEG C in ambient temperature,
When load is 2.16Kg, the melt index of described polyvinyl acetate resins is 7-60g/10min, more preferably
For 10-30g/10min.
5. lactic acid composite material as claimed in claim 1, it is characterised in that described polyadipate/right
The melt temperature of terephtha-late resin is at 85-120 DEG C.
6. lactic acid composite material as claimed in claim 1, it is characterised in that described lubricant is ester type
Flow ability modifying agent, vinyl bis-stearamides, low molecular weight polyethylene wax, erucyl amide and stearic lines
One or more compound.
7. lactic acid composite material as claimed in claim 1, it is characterised in that described impact modification agent is
One or more of the impact resistance modification agent of thermoplastic elastomer (TPE) and nucleocapsid cladded type compound.
8. lactic acid composite material as claimed in claim 1, it is characterised in that described melt strength strengthens
Agent is to compound with one or more of oleic series star-shaped copolymer containing epoxy functionalized sill.
9. lactic acid composite material as claimed in claim 1, it is characterised in that described nucleator is inorganic
At least one in nucleator, organic nucleating agent and polymer crystallization nucleator.
10. lactic acid composite material as claimed in claim 1, it is characterised in that described polylactic acid is combined
Material also includes in antistatic agent, antioxidant, UV absorbent, releasing agent and coloring agent at least
A kind of.
11. 1 kinds of products, it is characterised in that described product is for through any one of described claim 1 to 10
The product produced after described lactic acid composite material molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137377.6A CN106147157A (en) | 2015-03-26 | 2015-03-26 | Lactic acid composite material and products thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137377.6A CN106147157A (en) | 2015-03-26 | 2015-03-26 | Lactic acid composite material and products thereof |
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| Publication Number | Publication Date |
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| CN106147157A true CN106147157A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510137377.6A Pending CN106147157A (en) | 2015-03-26 | 2015-03-26 | Lactic acid composite material and products thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108276745A (en) * | 2018-02-05 | 2018-07-13 | 东莞市鑫海环保材料有限公司 | Biodegradable packaging material and preparation method thereof |
| CN112662147A (en) * | 2020-12-23 | 2021-04-16 | 青岛润兴塑料新材料有限公司 | High-performance ternary compound biodegradable film |
| CN114656763A (en) * | 2021-12-27 | 2022-06-24 | 河南工业大学 | High-strength high-toughness fully biodegradable polylactic acid ternary blend |
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| CN104364319A (en) * | 2012-06-13 | 2015-02-18 | 松下知识产权经营株式会社 | Poly(lactic acid) resin composition, method for producing molded article, molded article, and holder for electronic device |
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| CN104364319A (en) * | 2012-06-13 | 2015-02-18 | 松下知识产权经营株式会社 | Poly(lactic acid) resin composition, method for producing molded article, molded article, and holder for electronic device |
| CN103087484A (en) * | 2013-01-11 | 2013-05-08 | 北京工商大学 | Biodegradable composite film material of controllable degradation rate and preparation method thereof |
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Cited By (3)
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| CN108276745A (en) * | 2018-02-05 | 2018-07-13 | 东莞市鑫海环保材料有限公司 | Biodegradable packaging material and preparation method thereof |
| CN112662147A (en) * | 2020-12-23 | 2021-04-16 | 青岛润兴塑料新材料有限公司 | High-performance ternary compound biodegradable film |
| CN114656763A (en) * | 2021-12-27 | 2022-06-24 | 河南工业大学 | High-strength high-toughness fully biodegradable polylactic acid ternary blend |
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Application publication date: 20161123 |