CN105566756A - Cassava residue/PP two-phase electric conduction composite and preparation method thereof - Google Patents
Cassava residue/PP two-phase electric conduction composite and preparation method thereof Download PDFInfo
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- CN105566756A CN105566756A CN201610072678.XA CN201610072678A CN105566756A CN 105566756 A CN105566756 A CN 105566756A CN 201610072678 A CN201610072678 A CN 201610072678A CN 105566756 A CN105566756 A CN 105566756A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention belongs to the technical field of electric conduction composites, and particularly relates to a cassava residue/PP two-phase electric conduction composite and a preparation method thereof. The cassava residue/PP two-phase electric conduction composite is characterized by being prepared from, by weight, 10-20 parts of electric conduction filler, 10-20 parts of cassava residues and 60-80 parts of PP. The cassava residue/PP two-phase electric conduction composite has the advantages of being small in weight, easy to machine, resistant to wear and corrosion and adjustable in electrical resistivity within a large area. According to the method, through the effect of mechanical ball milling, the electric conduction filler can be well dispersed in cassava residues and a PP base body, the electric conduction percolation threshold value is low, the process is simple, and the cassava residue/PP two-phase electric conduction composite and the preparation method are green and environmentally friendly.
Description
Technical field
The invention belongs to conducing composite material technical field, relate to a kind of manioc waste/PP two-phase conducing composite material and preparation method thereof specifically.
Background technology
Cassava originates in Amazon River basin originally, is one of large tuber crops in the world three, has plant widely in national most area.China's Cassava industry is accomplished scale production already, and processing technology is ripe, is one of major economic crops producing starch.Guangxi, as one of the main planting site of cassava, has a large amount of cassavas to plant within the scope of the whole district every year.The cassava of Guangxi province mainly for the production of tapioca (flour), but in process of manufacture, can produce a large amount of manioc waste wastes.Main containing a small amount of starch and fiber inside manioc waste, majority fibers composition comprises xylogen, Mierocrystalline cellulose and hemicellulose.As not Appropriate application in addition, the waste of ample resources can be caused, cause serious environmental pollution simultaneously.According to statistics, the manioc waste that the annual tapioca (flour) production in Guangxi produces reaches 1,000,000 tons more than.If Appropriate application in addition, considerable economic benefit will be brought.
The industrial production of China's polypropylene (PP) starts from 20 century 70s, and in recent years, along with being constructed and put into operation of the relatively large polypropylene production apparatus of many covers, rapidly, international competitiveness significantly strengthens China's polypropylene industrial development.Within 2010, China's polypropylene art overall throughput has broken through 1,000 ten thousand tons, surmounts the polypropylene producing country that the U.S. becomes the biggest in the world.Within 2012, domestic polypropylene production reaches 1121.6 ten thousand tons, and 2005-2012 annual average rate of increase is 11.5%; Apparent con-sumption is 1498.37 ten thousand tons, and 2005-2012 annual average rate of increase is 9.14%.Within 2013, domestic polypropylene production reaches 1,245 ten thousand tons, estimates in a few years from now on, the good developing state that continued smooth increases by Chinese polypropylene art.But due to some defects that himself exists, as electrical insulating property, this just greatly limit its range of application.If insulation PP and manioc waste can be prepared into the good matrix material of conductivity, just can be widely applied in a lot, the every field such as such as unicircuit, chemical industry equipment, housing material, space flight and aviation.
At present, the research both at home and abroad for manioc waste/PP two-phase conducing composite material is relatively less.He Zheng etc. have prepared carbon black/polyvinyl chloride conducing composite material by melt-blending process, and have studied the impact of carbon black on conductivity of composite material energy, mechanical property and microtexture.Result of study shows: when content of carbon black is greater than 15%, and carbon black pellet forms conductive network in PVC matrix, and adding of carbon black makes the tensile strength of matrix material first raise rear reduction, and content is 20% reach maximum value.Healthy and strong polyvinyl chloride/carbon black composite foam conductive the macromolecular material waiting preparation of Lee, not only has considerable electricity and mechanical property, has also embodied warm resistance characteristic simultaneously.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of manioc waste/PP two-phase conducing composite material and preparation method thereof.
Technical scheme provided by the invention is:
A kind of manioc waste/PP two-phase conducing composite material, comprises following component: conductive filler material 10-20 part, manioc waste 10-20 part and PP60-80 part by weight.
Present invention also offers the preparation method of described manioc waste/PP two-phase conducing composite material, comprise the following steps:
(1) pre-treatment of conductive filler material: conductive filler material is dissolved in coupling agent, suction filtration after constant temperature stirs, is placed in baking oven drying for standby;
(2) mechanical ball milling process: take the conductive filler material after process, manioc waste and PP according to weight part and be placed in circulating water type ball mill, react 0.5-2.5h at a certain temperature, rotating speed 100-300rpm;
(3) sample preparation and property test: the sample mixed is placed in from molding jig, at vulcanizing press hot pressing 10-15min under certain temperature, namely obtains described manioc waste/PP two-phase conducing composite material.
As preferably, in step (1), electro-conductive material is graphite.
As preferably, in step (1), coupling agent is silane coupling agent KH570.
As preferably, in step (1), the mass ratio of electro-conductive material and coupling agent is 5:2.
As preferably, in step (1), the temperature of baking oven is set as 100-110 DEG C.
As preferably, the certain temperature described in step (2) is 45-55 DEG C.
As preferably, the certain temperature described in step (3) is 165 DEG C.
Compared with prior art, the present invention has following beneficial effect:
1. manioc waste of the present invention/PP two-phase conducing composite material has light weight, easily processing, the advantage that wear-resistant, anticorrosive and resistivity is adjustable on a large scale.
2. method of the present invention utilizes self-control band circulating water type ball mill, conductive filler material this problem of skewness in the polymer can be solved well, mechanical force is utilized to drive spheroid to rotate, make manioc waste and PP and conductive filler material interphase interaction, formed and mutually wrap up effect, thus improve conductivity of composite material energy, reduce amount of filler.
3. method of the present invention adds a certain amount of manioc waste in PP conducing composite material, its main component is starch 41.7%, robust fibre 21.6%, be used for preparing wood and moulded conducing composite material, this will be the novel biodegradable functional high molecule material of a class, on the one hand by the in addition Appropriate application of the cassava wastes in production process, economic worth can be improved; On the other hand, prepared wood is moulded conducing composite material and can be degraded well after it reaches work-ing life, avoids causing " white pollution " environment, meets the current strategy of sustainable development.
4. method of the present invention reduces the consumption of conductive filler material while ensureing excellent conductive capability, finds the conductive filler material of more low cost.
5. method of the present invention utilizes the effect of mechanical ball milling conductive filler material can be dispersed in well in manioc waste and PP matrix, and conduction oozes that to exceed threshold values lower, and technique is simple, environmental protection.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification sheets and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or integral part, and do not get rid of other element or other integral part.
embodiment 1:
A kind of manioc waste/PP two-phase conducing composite material, comprises following component: conductive filler material 10 parts, manioc waste 10 parts and PP80 part by weight.
The preparation method of described manioc waste/PP two-phase conducing composite material, comprises the following steps:
(1) pre-treatment of conductive filler material: conductive filler material is dissolved in coupling agent, suction filtration after constant temperature stirs, is placed in baking oven drying for standby; Electro-conductive material is graphite; Coupling agent is silane coupling agent KH570; In step (1), the mass ratio of electro-conductive material and coupling agent is 5:2; The temperature of baking oven is set as 100 DEG C;
(2) mechanical ball milling process: take the conductive filler material after process, manioc waste and PP according to weight part and be placed in circulating water type ball mill, react 0.5h under temperature 45 C, rotating speed 100rpm;
(3) sample preparation and property test: the sample mixed is placed in from molding jig, at vulcanizing press hot pressing 10min at temperature 165 DEG C, namely obtains described manioc waste/PP two-phase conducing composite material.
embodiment 2:
A kind of manioc waste/PP two-phase conducing composite material, comprises following component: conductive filler material 20 parts, manioc waste 20 parts and PP60 part by weight.
The preparation method of described manioc waste/PP two-phase conducing composite material, comprises the following steps:
(1) pre-treatment of conductive filler material: conductive filler material is dissolved in coupling agent, suction filtration after constant temperature stirs, is placed in baking oven drying for standby; Electro-conductive material is graphite; Coupling agent is silane coupling agent KH570; In step (1), the mass ratio of electro-conductive material and coupling agent is 5:2; The temperature of baking oven is set as 110 DEG C;
(2) mechanical ball milling process: take the conductive filler material after process, manioc waste and PP according to weight part and be placed in circulating water type ball mill, reacts 2.5h, rotating speed 300rpm at temperature 55 DEG C;
(3) sample preparation and property test: the sample mixed is placed in from molding jig, at vulcanizing press hot pressing 15min at temperature 165 DEG C, namely obtains described manioc waste/PP two-phase conducing composite material.
embodiment 3:
A kind of manioc waste/PP two-phase conducing composite material, comprises following component: conductive filler material 15 parts, manioc waste 15 parts and PP70 part by weight.
The preparation method of described manioc waste/PP two-phase conducing composite material, comprises the following steps:
(1) pre-treatment of conductive filler material: conductive filler material is dissolved in coupling agent, suction filtration after constant temperature stirs, is placed in baking oven drying for standby; Electro-conductive material is graphite; Coupling agent is silane coupling agent KH570; In step (1), the mass ratio of electro-conductive material and coupling agent is 5:2; The temperature of baking oven is set as 105 DEG C;
(2) mechanical ball milling process: take the conductive filler material after process, manioc waste and PP according to weight part and be placed in circulating water type ball mill, react 1.5h under temperature 50 C, rotating speed 200rpm;
(3) sample preparation and property test: the sample mixed is placed in from molding jig, at vulcanizing press hot pressing 12min at temperature 165 DEG C, namely obtains described manioc waste/PP two-phase conducing composite material.
Respectively the conductivity of manioc waste/PP two-phase conducing composite material prepared in embodiment 1-3 is measured, the results are shown in Table 1.
The conductivity of manioc waste/PP two-phase conducing composite material prepared by table 1 method of the present invention
As can be seen from Table 1, the conduction of manioc waste of the present invention/PP two-phase conducing composite material is oozed and is exceeded threshold values all lower than 6% (massfraction), and sheet material resistivity is between 0.1-0.2 Ω cm.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (8)
1. manioc waste/PP two-phase conducing composite material, is characterized in that, comprise following component by weight: conductive filler material 10-20 part, manioc waste 10-20 part and PP60-80 part.
2. a preparation method for manioc waste according to claim 1/PP two-phase conducing composite material, is characterized in that, comprise the following steps:
(1) pre-treatment of conductive filler material: conductive filler material is dissolved in coupling agent, suction filtration after constant temperature stirs, is placed in baking oven drying for standby;
(2) mechanical ball milling process: take the conductive filler material after process, manioc waste and PP according to weight part and be placed in circulating water type ball mill, react 0.5-2.5h at a certain temperature, rotating speed 100-300rpm;
(3) sample preparation and property test: the sample mixed is placed in from molding jig, at vulcanizing press hot pressing 10-15min under certain temperature, namely obtains described manioc waste/PP two-phase conducing composite material.
3. the preparation method of manioc waste according to claim 2/PP two-phase conducing composite material, is characterized in that, in step (1), electro-conductive material is graphite.
4. the preparation method of manioc waste according to claim 2/PP two-phase conducing composite material, is characterized in that, in step (1), coupling agent is silane coupling agent KH570.
5. the preparation method of manioc waste according to claim 2/PP two-phase conducing composite material, is characterized in that, in step (1), the mass ratio of electro-conductive material and coupling agent is 5:2.
6. the preparation method of manioc waste according to claim 2/PP two-phase conducing composite material, is characterized in that, in step (1), the temperature of baking oven is set as 100-110 DEG C.
7. the preparation method of manioc waste according to claim 1/PP two-phase conducing composite material, is characterized in that, the certain temperature described in step (2) is 45-55 DEG C.
8. the preparation method of manioc waste according to claim 1/PP two-phase conducing composite material, is characterized in that, the certain temperature described in step (3) is 165 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610072678.XA CN105566756A (en) | 2016-02-02 | 2016-02-02 | Cassava residue/PP two-phase electric conduction composite and preparation method thereof |
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| CN201610072678.XA CN105566756A (en) | 2016-02-02 | 2016-02-02 | Cassava residue/PP two-phase electric conduction composite and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942797A (en) * | 2012-10-17 | 2013-02-27 | 广西大学 | Plant fiber wood-plastic composite material and preparation method thereof |
| CN104292620A (en) * | 2014-09-24 | 2015-01-21 | 铜陵市新泰电容电器有限责任公司 | Novel high-hardness plastic shell composition for capacitor |
| CN104327530A (en) * | 2014-11-26 | 2015-02-04 | 东北林业大学 | Flame-retardant and antistatic wood-plastic composite material and preparation method thereof |
| CN104479223A (en) * | 2014-12-18 | 2015-04-01 | 广西大学 | Wood-plastic composite prepared by use of short fiber and preparation method thereof |
| CN104672704A (en) * | 2015-02-10 | 2015-06-03 | 广西大学 | Method for preparing PVC conductive composite material through mechanical milling method |
-
2016
- 2016-02-02 CN CN201610072678.XA patent/CN105566756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942797A (en) * | 2012-10-17 | 2013-02-27 | 广西大学 | Plant fiber wood-plastic composite material and preparation method thereof |
| CN104292620A (en) * | 2014-09-24 | 2015-01-21 | 铜陵市新泰电容电器有限责任公司 | Novel high-hardness plastic shell composition for capacitor |
| CN104327530A (en) * | 2014-11-26 | 2015-02-04 | 东北林业大学 | Flame-retardant and antistatic wood-plastic composite material and preparation method thereof |
| CN104479223A (en) * | 2014-12-18 | 2015-04-01 | 广西大学 | Wood-plastic composite prepared by use of short fiber and preparation method thereof |
| CN104672704A (en) * | 2015-02-10 | 2015-06-03 | 广西大学 | Method for preparing PVC conductive composite material through mechanical milling method |
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Application publication date: 20160511 |
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