CN103467945A - Kenaf fiber reinforced polylactic acid degradable plastic - Google Patents
Kenaf fiber reinforced polylactic acid degradable plastic Download PDFInfo
- Publication number
- CN103467945A CN103467945A CN2013103965280A CN201310396528A CN103467945A CN 103467945 A CN103467945 A CN 103467945A CN 2013103965280 A CN2013103965280 A CN 2013103965280A CN 201310396528 A CN201310396528 A CN 201310396528A CN 103467945 A CN103467945 A CN 103467945A
- Authority
- CN
- China
- Prior art keywords
- kenaf
- polylactic acid
- acid degradable
- polylactic
- degradable plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 240000000797 Hibiscus cannabinus Species 0.000 title claims abstract description 31
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 19
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 14
- 229920006238 degradable plastic Polymers 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 title abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 11
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- -1 Poly(lactic acid) Polymers 0.000 description 8
- 238000012986 modification Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005453 pelletization Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 241000722948 Apocynum cannabinum Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 241000411851 herbal medicine Species 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention discloses a kenaf fiber reinforced polylactic acid degradable plastic. The plastic is prepared from the following components in parts by weight: 70-90 parts of polylactic resins, 10-30 parts of kenaf fibers and 0.2-0.6 part of coupling agents. The polylactic acid degradable plastic improves the mechanical properties of the polylactic resins, has excellent heat resistance and forming processability and can be used for manufacturing environment-friendly mobile phone shells.
Description
Technical field
The present invention relates to a kind of polylactic acid plastic, relate in particular to a kind of kenaf and strengthen the polylactic acid degradable plastics.
Background technology
Poly(lactic acid), be called for short PLA, and No. CAS: 51063-13-9, also referred to as polylactide, belongs to polyester family.Poly(lactic acid) is to take the polymkeric substance that lactic acid obtains as the main raw material polymerization, and raw material sources fully and can regenerate.The production process of poly(lactic acid) is pollution-free, and product can biological degradation, realizes the circulation at occurring in nature, is therefore desirable Green Polymer Material.
But, because pure polylactic resin crystallization velocity is slow, the moulded products shrinking percentage is large, poor dimensional stability, material own is crisp, and processing heat stability is poor etc., has limited its application as engineering plastics.
Kenaf is that to have another name called bluish dogbane, gombo hemp, clock fiber crops are annual herb phloem fiber crops growing environment is required to low suitable low state's cultivated area is more distributes with wild state on the Middle East, Southwest Africa and other places with China, USSR (Union of Soviet Socialist Republics), India and Bangladesh etc. at Low land growth planting cost for the second largest natural plant fibre mestha that is only second in the world cotton fibre.In the long concise and to the point description that the gombo hemp form is just arranged in year of grace in the Northern Song Dynasty " figure is through book on Chinese herbal medicine " of China's cultivation history.Kenaf is that in several frequently seen bast-fibre, mechanical property is best.
How polylactic resin is strengthened, particularly adopt kenaf to be strengthened, become a new research topic of the industry.
Summary of the invention
A kind of kenaf strengthens the polylactic acid degradable plastics, following component, consists of by weight: polylactic resin 70-90 part, kenaf 10-30 part, coupling agent 0.2-0.6 part.
Described coupling agent is N-(β-aminoethyl)-one or both in γ-aminopropyl methyl dimethoxysilane and γ-isocyanic acid propyl-triethoxysilicane.
Preferably, described coupling agent is comprised of following compositions in weight percentage: N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane 50-70% and γ-isocyanic acid propyl-triethoxysilicane 30-50%.The two is uniformly mixed and makes described coupling agent.
N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane, No. CAS: 3069-29-2.
γ-isocyanic acid propyl-triethoxysilicane, No. CAS: 24801-88-5.
Adopt industry universal method that coupling agent and kenaf are mixed to get to the modification kenaf.As, by Virahol equal solvent dilution for coupling agent, evenly being sprayed onto on kenaf, drying, obtain the modification kenaf.Again by the modification kenaf with polylactic resin, mix, melting mixing, extruding pelletization, obtain kenaf and strengthen the polylactic acid degradable plastics.
Kenaf of the present invention strengthens the polylactic acid degradable plastics, has improved the mechanical property of polylactic resin, has excellent thermotolerance and moulding processability, can be for the manufacture of the environment-friendly type phone housing.
Embodiment
Polylactic resin is selected U.S. NatureWorks4032D poly(lactic acid).The kenaf (length 5mm) that during kenaf is selected from, prosperous mestha industry company limited produces.
Embodiment 1-2
With 3 kilograms of Virahols, coupling agent is diluted, evenly be sprayed onto on kenaf, dry, remove solvent, obtain the modification kenaf.Again by the modification kenaf with polylactic resin, mix melting mixing, extruding pelletization.170 ℃ of extrusion temperatures, 170 ℃ of injecting forming temperatures.
Embodiment 3
By N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane and γ-isocyanic acid propyl-triethoxysilicane be uniformly mixed, and makes composite coupler.With 3 kilograms of Virahols, composite coupler is diluted, evenly be sprayed onto on kenaf, dry, remove solvent, obtain the modification kenaf.Again by the modification kenaf with polylactic resin, mix, melting mixing, extruding pelletization, obtain kenaf and strengthen the polylactic acid degradable plastics.170 ℃ of extrusion temperatures, 170 ℃ of injecting forming temperatures.
Proportioning raw materials list position: kilogram
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Polylactic resin | 80 | 80 | 80 |
| Kenaf | 20 | 20 | 20 |
| N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane | 0.4 | / | 0.24 |
| γ-isocyanic acid propyl-triethoxysilicane | / | 0.4 | 0.16 |
Test case
Embodiment 1-3 is carried out to performance test, and concrete data see the following form.
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Modulus in flexure, Gpa | 7.5 | 7.6 | 8.1 |
| Heat-drawn wire, ℃ | 119 | 118 | 124 |
Claims (3)
1. a kenaf strengthens the polylactic acid degradable plastics, it is characterized in that, following component, consists of by weight: polylactic resin 70-90 part, kenaf 10-30 part, coupling agent 0.2-0.6 part.
2. kenaf as claimed in claim 1 strengthens the polylactic acid degradable plastics, and it is characterized in that: described coupling agent is N-(β-aminoethyl)-one or both in γ-aminopropyl methyl dimethoxysilane and γ-isocyanic acid propyl-triethoxysilicane.
3. kenaf as claimed in claim 2 strengthens the polylactic acid degradable plastics, it is characterized in that, described coupling agent is comprised of following compositions in weight percentage: N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane 50-70% and γ-isocyanic acid propyl-triethoxysilicane 30-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396528.0A CN103467945B (en) | 2013-09-04 | 2013-09-04 | Kenaf strengthens polylactic acid degradable plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396528.0A CN103467945B (en) | 2013-09-04 | 2013-09-04 | Kenaf strengthens polylactic acid degradable plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103467945A true CN103467945A (en) | 2013-12-25 |
| CN103467945B CN103467945B (en) | 2016-08-17 |
Family
ID=49792999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396528.0A Active CN103467945B (en) | 2013-09-04 | 2013-09-04 | Kenaf strengthens polylactic acid degradable plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103467945B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104031364A (en) * | 2014-06-16 | 2014-09-10 | 南京理工大学 | Reinforced flame retardant polylactic acid material and preparation method thereof |
| CN104031365A (en) * | 2014-06-16 | 2014-09-10 | 南京理工大学 | Halogen-free flame-retardant natural fiber-reinforced polylactic acid material and preparation method thereof |
| CN117046221A (en) * | 2023-10-10 | 2023-11-14 | 广东鑫球新材料科技有限公司 | Method for preparing filter element from degradable composite fiber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466796A (en) * | 2006-06-09 | 2009-06-24 | 丰田纺织株式会社 | Molded article and process for producing the same |
| CN101538401A (en) * | 2009-03-13 | 2009-09-23 | 上海大学 | High temperature resistance binary fiber/polylactic acid based composite material and preparation method thereof |
-
2013
- 2013-09-04 CN CN201310396528.0A patent/CN103467945B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466796A (en) * | 2006-06-09 | 2009-06-24 | 丰田纺织株式会社 | Molded article and process for producing the same |
| CN101538401A (en) * | 2009-03-13 | 2009-09-23 | 上海大学 | High temperature resistance binary fiber/polylactic acid based composite material and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104031364A (en) * | 2014-06-16 | 2014-09-10 | 南京理工大学 | Reinforced flame retardant polylactic acid material and preparation method thereof |
| CN104031365A (en) * | 2014-06-16 | 2014-09-10 | 南京理工大学 | Halogen-free flame-retardant natural fiber-reinforced polylactic acid material and preparation method thereof |
| CN104031364B (en) * | 2014-06-16 | 2016-01-20 | 南京理工大学 | A kind of enhancing flame-retardant polylactic acid material and preparation method thereof |
| CN117046221A (en) * | 2023-10-10 | 2023-11-14 | 广东鑫球新材料科技有限公司 | Method for preparing filter element from degradable composite fiber |
| CN117046221B (en) * | 2023-10-10 | 2024-01-30 | 广东鑫球新材料科技有限公司 | Method for preparing filter element from degradable composite fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103467945B (en) | 2016-08-17 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Junfeng Inventor after: Zhou Yongjun Inventor after: Be polite Inventor after: Li Wanxin Inventor before: Ding Yonghua |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170405 Address after: Puyang City Chengdong Nanle County in Henan province 457400 Ring Road North Patentee after: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Address before: 201107 Shanghai city Minhang District Minhang Road 88 Lane No. 1-30 building twenty-second room T157 Patentee before: SHANGHAI YUEMENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Kenaf fiber reinforced PLA degradable plastics Effective date of registration: 20210422 Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL Co.,Ltd. Registration number: Y2021980002928 |
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Date of cancellation: 20220427 Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2021980002928 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Degradable polylactic acid fiber reinforced plastic Effective date of registration: 20220511 Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2022980005424 |
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Date of cancellation: 20230420 Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2022980005424 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hemp fiber reinforced polylactic acid degradable plastic Effective date of registration: 20230425 Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2023980039030 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20160817 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2023980039030 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hemp fiber reinforced polylactic acid degradable plastic Granted publication date: 20160817 Pledgee: Bank of China Nanle Branch Pledgor: HENAN LONGDU TIANREN BIOLOGY MATERIAL CO.,LTD. Registration number: Y2024980013576 |