CN103772803A - Preparation method for polypropylene bamboo plastic composite - Google Patents
Preparation method for polypropylene bamboo plastic composite Download PDFInfo
- Publication number
- CN103772803A CN103772803A CN201210410420.8A CN201210410420A CN103772803A CN 103772803 A CN103772803 A CN 103772803A CN 201210410420 A CN201210410420 A CN 201210410420A CN 103772803 A CN103772803 A CN 103772803A
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- CN
- China
- Prior art keywords
- bamboo
- plastic composite
- polypropylene
- mixing
- preparation
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method for a polypropylene bamboo plastic composite. The preparation method comprises: first, bamboo powder with 40-80 meshes is dried; second, 10-80g of wood powder and 0.1-1.5mL of coupling agents are added in a high speed mixer and mixed uniformly; third, 20-90g of PP granules are added in the high speed mixer, mixing is carried out at a speed of 3000r/min for 10min; fourth, the bamboo plastic mixture is subjected to mixing in a double roller open mixing machine; fifth, the materials after mixing are subjected to mold pressing into sheets on a hydraulic press, the mold pressing temperature is 180 DEG C, the time is 3min, and the pressure is 10 MPa. The mass fraction of the bamboo powder is 20-30 parts. The tensile strength, the impact strength and the bending strength of the polypropylene bamboo plastic composite are raised greatly, and the polypropylene bamboo plastic composite has good practicality.
Description
Technical field
The present invention relates to matrix material, be specifically related to a kind of preparation method of polypropylene bamboo-plastic composite material.
Background technology
Bamboo-plastic composite material is the modified thermoplastic material that adopts bamboo powder or bamboo fibers to fill, strengthen.Bamboo-plastic composite material is of many uses, low price.China's bamboo resource is very abundant, and price is very cheap, thereby has good economic worth; In addition, bamboo powder or bamboo fibers are a kind of environment-friendly type natural materials, pollution-free, therefore have again social value.Bamboo-plastic composite material can regard that structure thermoplastics serves as external phase, thereby bamboo fibers serves as the two phase structure that disperse phase forms as, the chemical means such as two alternate process grafting, coupling organically combine, and make bamboo-plastic composite material integrate the advantage of timber and plastics.So bamboo-plastic composite material is at home and abroad more and more paid close attention at present.
But not surface treated bamboo moulding material is wetting ability because containing a large amount of hydrogen bonds, while mixing with hydrophobic thermoplastics, material tends to reunite in blend, the interface interaction that causes material and thermoplastics a little less than, make the physical strength of bamboo-plastic composite material lower.Add coupling agent to address this problem well.Coupling agent is generally the material that contains two kinds of different structures, a part of group can with the hydroxyl reaction on bamboo material surface, form firmly chemical bonding; Another part group has the character of close resin, can or produce physical entanglement with resin reaction, thereby promote the combination between bamboo material and resin.More common coupling agent is maleic anhydride modified polypropylene, and the research of this respect is also more.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of this invention is to provide a kind of preparation method of polypropylene bamboo-plastic composite material, to make it have larger economic benefit and social benefit.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A preparation method for polypropylene bamboo-plastic composite material, comprises the following steps:
(1) by dry 40-80 object bamboo dried bean noodles;
(2) 10 ~ 80g wood powders and 0.1-1.5mL coupling agent add in high-speed mixer and mix;
(3) again 20-90gPP pellet is dropped in high-speed mixer, mix 10min with the speed of 3000r/min;
(4) bamboo is moulded to compound mixing in two roller mills;
(5) material mixing is molded into sheet on hydropress, 180 ℃ of molding temperatures, time 3min, pressure 10MPa.
Bamboo powder mass fraction is 20 ~ 30 parts.
Beneficial effect: compared with prior art, the tensile strength of polypropylene bamboo-plastic composite material of the present invention, shock strength, flexural strength are significantly increased.There is good practicality.
Embodiment
The present invention is further illustrated below.
Embodiment 1
80 ℃ of dry 40-80 object bamboo powder, dissolve in ethanolic soln by 1mL isocyanate coupler, are sprayed onto on 80g bamboo powder after mixing, and add in high-speed mixer and mix, and 20gPP pellet is dropped in high-speed mixer, mix 10min with the speed of 3000r/min.Bamboo is moulded to compound mixing in two roller mills; The material mixing is molded into sheet on hydropress, 180 ℃ of molding temperatures, time 3min, pressure 10MPa.After testing, the tensile strength of polypropylene bamboo-plastic composite material, shock strength, flexural strength are significantly increased.
Embodiment 2
80 ℃ of dry 40-80 object bamboo powder, 0.1mL isocyanate coupler is dissolved in to ethanolic soln, after mixing, be sprayed onto on 10g bamboo powder, add in high-speed mixer and mix, 90gPP pellet is dropped in high-speed mixer, mix 10min with the speed of 3000r/min.Bamboo is moulded to compound mixing in two roller mills; The material mixing is molded into sheet on hydropress, 180 ℃ of molding temperatures, time 3min, pressure 10MPa.After testing, the tensile strength of polypropylene bamboo-plastic composite material, shock strength, flexural strength are significantly increased.
Embodiment 3
80 ℃ of dry 40-80 object bamboo powder, 0.5mL isocyanate coupler is dissolved in to ethanolic soln, after mixing, be sprayed onto on 30g bamboo powder, add in high-speed mixer and mix, 20gPP pellet is dropped in high-speed mixer, mix 10min with the speed of 3000r/min.Bamboo is moulded to compound mixing in two roller mills; The material mixing is molded into sheet on hydropress, 180 ℃ of molding temperatures, time 3min, pressure 10MPa.After testing, the tensile strength of polypropylene bamboo-plastic composite material, shock strength, flexural strength are significantly increased.
Claims (2)
1. a preparation method for polypropylene bamboo-plastic composite material, is characterized in that, comprises the following steps:
(1) by dry 40-80 object bamboo dried bean noodles;
(2) 10 ~ 80g wood powders and 0.1-1.5mL coupling agent add in high-speed mixer and mix;
(3) again 20-90gPP pellet is dropped in high-speed mixer, mix 10min with the speed of 3000r/min;
(4) bamboo is moulded to compound mixing in two roller mills;
(5) material mixing is molded into sheet on hydropress, 180 ℃ of molding temperatures, time 3min, pressure 10MPa.
2. the preparation method of polypropylene bamboo-plastic composite material according to claim 1, is characterized in that, bamboo powder mass fraction is 20 ~ 30 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410420.8A CN103772803A (en) | 2012-10-24 | 2012-10-24 | Preparation method for polypropylene bamboo plastic composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410420.8A CN103772803A (en) | 2012-10-24 | 2012-10-24 | Preparation method for polypropylene bamboo plastic composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103772803A true CN103772803A (en) | 2014-05-07 |
Family
ID=50565603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210410420.8A Pending CN103772803A (en) | 2012-10-24 | 2012-10-24 | Preparation method for polypropylene bamboo plastic composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103772803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950139A (en) * | 2014-05-16 | 2014-07-30 | 中南林业科技大学 | Energy-saving system and method for hot-press forming of bamboo-plastic composite material |
-
2012
- 2012-10-24 CN CN201210410420.8A patent/CN103772803A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950139A (en) * | 2014-05-16 | 2014-07-30 | 中南林业科技大学 | Energy-saving system and method for hot-press forming of bamboo-plastic composite material |
| CN103950139B (en) * | 2014-05-16 | 2016-04-20 | 中南林业科技大学 | The hot-forming energy conserving system of bamboo-plastic composite material and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |