CN102241827B - Adjusting method of natural vegetable fiber and polylactic acid interface - Google Patents
Adjusting method of natural vegetable fiber and polylactic acid interface Download PDFInfo
- Publication number
- CN102241827B CN102241827B CN 201110123995 CN201110123995A CN102241827B CN 102241827 B CN102241827 B CN 102241827B CN 201110123995 CN201110123995 CN 201110123995 CN 201110123995 A CN201110123995 A CN 201110123995A CN 102241827 B CN102241827 B CN 102241827B
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- Prior art keywords
- natural plant
- plant fibre
- reaction chamber
- hexamethyldisiloxane
- vegetable fiber
- Prior art date
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- 239000000835 fiber Substances 0.000 title claims abstract description 44
- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 235000013311 vegetables Nutrition 0.000 title abstract description 8
- 239000004626 polylactic acid Substances 0.000 title abstract 4
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 14
- -1 poly(lactic acid) Polymers 0.000 claims description 34
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- ADKPKEZZYOUGBZ-UHFFFAOYSA-N [C].[O].[Si] Chemical compound [C].[O].[Si] ADKPKEZZYOUGBZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 229940073561 hexamethyldisiloxane Drugs 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 29
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 229910001573 adamantine Inorganic materials 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 229940089401 xylon Drugs 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920000704 biodegradable plastic Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Biological Depolymerization Polymers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to an adjusting method of natural vegetable fiber and polylactic acid interface. The invention is characterized in that thermal volatilization gas of hexamethyl disiloxane is taken as a gas medium, natural vegetable fiber is treated under normal pressure by a low temperature plasma processor, an ultrathin silicon-oxygen-carbon compound nonpolar layer is deposited on the surface of the natural vegetable fiber, so that the surface performance of the natural vegetable fiber can be modified for achieving the purpose of adjusting the compatibility of the natural vegetable fiber and polylactic acid interface. The invention solves the defects of intelligible interface and poor adhesive stress existed in the composition phase, stress can be effectively conveyed in interfacial energy, so that the compatibility of the natural vegetable fiber and polylactic acid can be improved, thereby the comprehensive properties of the composite material can be raised.
Description
Technical field
The present invention relates to a kind ofly for the composite material interface regulate and control method, belong to matrix material and make field, specifically a kind of natural plant fibre and poly(lactic acid) interface regulate and control method.
Background technology
The natural plant fibres such as xylon, bamboo fibers and flaxen fiber have that length-to-diameter ratio is large, specific tenacity is high, specific surface area is large, density is low, inexpensive and recyclability and the advantage such as biodegradable, are the high quality raw material with compound preparation biodegradable composites of degradable plastics such as poly(lactic acid).But natural plant fibre is comprised of Mierocrystalline cellulose, hemicellulose, xylogen and various extract, and it is a kind of inhomogeneous anisotropic material, and interfacial characteristics is complicated.Its main component Mierocrystalline cellulose, hemicellulose and xylogen etc. contain a large amount of polarity hydroxyls and phenolic hydroxyl group functional group, so that its surface shows very strong chemical polarity, cause between the biodegradable plastic base materials such as vegetable fibre poly(lactic acid) the interface consistency poor, be heterogeneous system on the microcosmic, there is very clearly interface in two-phase, cohesive force is poor, so that stress can not transmit effectively at the interface, the physical and mechanical property of prepared biodegradable composite significantly reduces, thereby affects the over-all properties of matrix material.
Therefore, when strengthening the poly(lactic acid) biodegradable composite, the preparation natural plant fibre need to regulate and control natural plant fibre and poly(lactic acid) interface, make between hydrophilic polarity natural plant fibre surface and the hydrophobic nonpolar poly(lactic acid) interface to have good consistency, make between the upper layer of natural plant fibre and the poly(lactic acid) upper layer to reach intermolecular fusion.
Summary of the invention
Technical problem solved by the invention is to provide a kind of natural plant fibre and poly(lactic acid) interface regulate and control method, improves natural plant fibre and poly(lactic acid) interface compatibility, to solve the shortcoming in the above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of natural plant fibre and poly(lactic acid) interface regulate and control method, the notable feature that is different from other regulate and control methods is: with the hot volatilization gas of hexamethyldisiloxane as the modification medium, adopt the low-temperature plasma processing instrument under normal pressure, the natural plant fibre modifying surface to be processed, at the nonpolar layer of natural plant fibre surface deposition ultra-thin silicon-oxygen-carbon compound, change the natural plant fibre surface property, thereby reach regulation and control natural plant fibre and poly(lactic acid) interface compatibility purpose.
Concrete grammar is as follows:
(1) hexamethyldisiloxane of 500ml is poured in the round-bottomed flask that volume is three times of volumes, the flask mouth is used with valve, the Thermostable flexible hose that is connected under meter be connected (being in closing condition before the processing) with Low Temperature Plasma Treating instrument reaction chamber.
The round-bottomed flask that (2) hexamethyldisiloxane will be housed is placed on water-bath, and the water-bath temperature is set up at 100 ℃.
(3) take by weighing the Stage microscope that a certain amount of natural plant fibre is put into Low Temperature Plasma Treating instrument reaction chamber.
(4) vacuum pump of opening the Low Temperature Plasma Treating instrument is taken out the indoor air of dereaction, open valve on the Thermostable flexible hose when bleeding, the hexamethyldisiloxane of gaseous state is filled with reaction chamber, the control of adjust flux meter enters the hexamethyldisiloxane flow of reaction chamber gaseous state, after after a while, reach running balance, keep normal atmosphere in the reaction chamber.
(5) press Low Temperature Plasma Treating instrument radio frequency power source switch, regulate radio frequency power, natural plant fibre is carried out Cement Composite Treated by Plasma, close valve on instrument radio frequency power source switch and the Thermostable flexible hose after processing 3min or 4min, can be directly used in the strongthener of preparation biodegradable composite after natural plant fibre takes out.
Beneficial effect: the natural plant fibre surface that utilizes method of the present invention to process can deposit the nonpolar layer of one deck ultra-thin silicon-oxygen-carbon compound, can improve natural plant fibre and poly(lactic acid) consistency, thereby realize utilizing the interface regulation and control of natural plant fibre and the compound preparation biodegradable composite of poly(lactic acid).
Embodiment
The below gives an actual example and describes the present invention.
Embodiment 1
1, the hexamethyldisiloxane of 500ml is poured in the round-bottomed flask that volume is 1500ml, the flask mouth is used with valve, the Thermostable flexible hose that is connected under meter be connected (being in closing condition before the processing) with Low Temperature Plasma Treating instrument reaction chamber.
The round-bottomed flask that 2, hexamethyldisiloxane will be housed is placed on water-bath, and the water-bath temperature is set up at 100 ℃.
3, take by weighing the Stage microscope that a certain amount of natural plant fibre is put into Low Temperature Plasma Treating instrument reaction chamber.
4, the vacuum pump of opening the Low Temperature Plasma Treating instrument is taken out the indoor air of dereaction, open valve on the Thermostable flexible hose when bleeding, the hexamethyldisiloxane of gaseous state is filled with reaction chamber, the control of adjust flux meter enters the hexamethyldisiloxane flow of reaction chamber gaseous state, after after a while, reach running balance, keep normal atmosphere in the reaction chamber.
5, press Low Temperature Plasma Treating instrument radio frequency power source switch, the adjusting radio frequency power is 30W, and natural plant fibre is carried out Cement Composite Treated by Plasma 4min, can be directly used in the strongthener of preparation biodegradable composite after natural plant fibre takes out.
Embodiment 1 is mainly used in natural plant fibre and the regulation and control of poly(lactic acid) interface that adamantine layer is contained on straw and wheat straw class surface.
Embodiment 2
1, the hexamethyldisiloxane of 500ml is poured in the round-bottomed flask that volume is 1500ml, the flask mouth is used with valve, the Thermostable flexible hose that is connected under meter be connected (being in closing condition before the processing) with Low Temperature Plasma Treating instrument reaction chamber.
The round-bottomed flask that 2, hexamethyldisiloxane will be housed is placed on water-bath, and the water-bath temperature is set up at 100 ℃.
3, take by weighing the Stage microscope that a certain amount of natural plant fibre is put into Low Temperature Plasma Treating instrument reaction chamber.
4, the vacuum pump of opening the Low Temperature Plasma Treating instrument is taken out the indoor air of dereaction, open valve on the Thermostable flexible hose when bleeding, the hexamethyldisiloxane of gaseous state is filled with reaction chamber, the control of adjust flux meter enters the hexamethyldisiloxane flow of reaction chamber gaseous state, after after a while, reach running balance, keep normal atmosphere in the reaction chamber.
5, press Low Temperature Plasma Treating instrument radio frequency power source switch, the adjusting radio frequency power is 20W, and natural plant fibre is carried out Cement Composite Treated by Plasma 3min, can be directly used in the strongthener of preparation biodegradable composite after natural plant fibre takes out.
Embodiment 2 is mainly used in natural plant fibre and the regulation and control of poly(lactic acid) interface that adamantine layer is not contained on the surfaces such as xylon and bamboo fibers.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
Claims (1)
1. a natural plant fibre and poly(lactic acid) interface regulate and control method as gaseous media, adopt the low-temperature plasma processing instrument under normal pressure natural plant fibre to be processed with the hot volatilization gas of hexamethyldisiloxane, it is characterized in that concrete operation method is as follows:
(1) hexamethyldisiloxane of 500ml is poured in the round-bottomed flask that volume is three times of volumes, the flask mouth is used with valve, the Thermostable flexible hose that is connected under meter be connected with Low Temperature Plasma Treating instrument reaction chamber;
The round-bottomed flask that (2) hexamethyldisiloxane will be housed is placed on water-bath, and the water-bath temperature is set up at 100 ℃;
(3) take by weighing the Stage microscope that a certain amount of natural plant fibre is put into Low Temperature Plasma Treating instrument reaction chamber;
(4) vacuum pump of opening the Low Temperature Plasma Treating instrument is taken out the indoor air of dereaction, open valve on the Thermostable flexible hose when bleeding, the hexamethyldisiloxane of gaseous state is filled with reaction chamber, the control of adjust flux meter enters the hexamethyldisiloxane flow of reaction chamber gaseous state, after after a while, reach running balance, keep normal atmosphere in the reaction chamber;
(5) press Low Temperature Plasma Treating instrument radio frequency power source switch, regulate radio frequency power, natural plant fibre is carried out Cement Composite Treated by Plasma, close valve on instrument radio frequency power source switch and the Thermostable flexible hose after processing 3min or 4min, natural plant fibre takes out the strongthener that can be directly used in the preparation biodegradable composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123995 CN102241827B (en) | 2011-05-14 | 2011-05-14 | Adjusting method of natural vegetable fiber and polylactic acid interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110123995 CN102241827B (en) | 2011-05-14 | 2011-05-14 | Adjusting method of natural vegetable fiber and polylactic acid interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241827A CN102241827A (en) | 2011-11-16 |
| CN102241827B true CN102241827B (en) | 2013-03-20 |
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| CN 201110123995 Expired - Fee Related CN102241827B (en) | 2011-05-14 | 2011-05-14 | Adjusting method of natural vegetable fiber and polylactic acid interface |
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| CN111763336A (en) * | 2020-06-24 | 2020-10-13 | 浙江省林业科学研究院 | Method for increasing compatibility of bamboo powder/PLA composite material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642664A (en) * | 2002-03-28 | 2005-07-20 | 普拉索技术有限公司 | Preparation of coatings through plasma polymerization |
| CN1776027A (en) * | 2005-12-01 | 2006-05-24 | 苏州大学 | Diamond coating-like biological material and its preparing method |
| WO2006133730A1 (en) * | 2005-06-16 | 2006-12-21 | Innovative Systems & Technologies | Method for producing coated polymer |
| CN101563404A (en) * | 2006-10-30 | 2009-10-21 | 国立大学法人群马大学 | Composite material composed of natural vegetable fiber and synthetic polymer, and method for producing the same |
| CN101962468A (en) * | 2010-09-21 | 2011-02-02 | 上海大学 | High strength and high heat resistance polylactic acid composite material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3845061B2 (en) * | 2002-10-24 | 2006-11-15 | 株式会社半導体プロセス研究所 | Semiconductor device and manufacturing method thereof |
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2011
- 2011-05-14 CN CN 201110123995 patent/CN102241827B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642664A (en) * | 2002-03-28 | 2005-07-20 | 普拉索技术有限公司 | Preparation of coatings through plasma polymerization |
| WO2006133730A1 (en) * | 2005-06-16 | 2006-12-21 | Innovative Systems & Technologies | Method for producing coated polymer |
| CN1776027A (en) * | 2005-12-01 | 2006-05-24 | 苏州大学 | Diamond coating-like biological material and its preparing method |
| CN101563404A (en) * | 2006-10-30 | 2009-10-21 | 国立大学法人群马大学 | Composite material composed of natural vegetable fiber and synthetic polymer, and method for producing the same |
| CN101962468A (en) * | 2010-09-21 | 2011-02-02 | 上海大学 | High strength and high heat resistance polylactic acid composite material and preparation method thereof |
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| CN102241827A (en) | 2011-11-16 |
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