CN102558679A - Novel bamboo fiber/polypropylene composite material and method for preparing same - Google Patents
Novel bamboo fiber/polypropylene composite material and method for preparing same Download PDFInfo
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- CN102558679A CN102558679A CN2011104476314A CN201110447631A CN102558679A CN 102558679 A CN102558679 A CN 102558679A CN 2011104476314 A CN2011104476314 A CN 2011104476314A CN 201110447631 A CN201110447631 A CN 201110447631A CN 102558679 A CN102558679 A CN 102558679A
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- composite material
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- bamboo fibers
- polypropylene
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The invention discloses a novel bamboo fiber/polypropylene composite material and a method for preparing the novel bamboo fiber/polypropylene composite material. The novel bamboo fiber/polypropylene composite material is prepared by treating the surface of bamboo fiber, adding a graft, an antioxidant, a lubricant and a molecular weight regulator into homopolymerized polypropylene as a substrate, and fully mixing according to proportion. The surface of the bamboo fiber is treated, thus the compatibility of the bamboo fiber and the polypropylene is improved, and the novel bamboo fiber/polypropylene composite material has excellent mechanical properties. In addition, the plasticizing properties of the polypropylene is improved, the melt viscosity is reduced, the flowability is improved, the compatibility and dispersibility of components of a system are effectively improved, and the interfacial adhesion of the material system is improved. Moreover, the aging resistance and the processing performance of the product are also improved, the polypropylene has thermal stability, and the rigidity of the polypropylene is greatly enhanced. Due to the addition of the lubricant and the molecular weight regulator, the flowability and the flow rate of the novel bamboo fiber/polypropylene composite material are improved. The novel bamboo fiber/polypropylene composite material is suitable for the process for extruding plastics into sheets, plates and pipes and also suitable for the process for injecting and molding small house appliance shells and bases.
Description
Technical field
The present invention relates to the polypropylene material field, relate in particular to a kind of novel bamboo fiber/polypropylene composite material and preparation method thereof.
Background technology
Vestolen PP 7052 is as one big type of general purpose material, because shrinking percentage is bigger when having hot-work, is subject to light, heat, oxygen and weather effect in processing and the use and wears out, and defectives such as winter hardiness difference, purposes is restricted.Bamboo fibers has unique antibiotic, deodorization performance and good tint permanence, wear resistance, bounce-back property and electrical insulating property, and has the processing of being prone to, low cost and other advantages.Wood plastic composite is the one type of advanced composite material that is surging forward in recent years both at home and abroad; Refer to utilize Vilaterm, Vestolen PP 7052 and SE etc.; Replace common resin adhesive, be mixed into new wood materials with useless vegetable fibres such as surpassing wood powder more than 50%, rice husk, stalk, again through plastic processings such as extruding, mold pressing, injection moldings; Sheet material of producing or section bar, it is mainly used in industries such as building materials, furniture, logistics packaging.With plastics with wooden powder mixes by a certain percentage after the sheet material of hot extrusion molding is referred to as to push wood-plastic composite panel.
In the prior art; The existing matrix material that adopts bamboo fibers and auxiliary agent Vestolen PP 7052 to be carried out modification; East China University of Science discloses a kind of bamboo fiber/polypropylene composite material and preparation method thereof in the patent of invention 201010217542.6 (publication number CN101880423A, open day on November 10th, 2010) of application on June 30th, 2010, and this piece patent is mainly outstanding utilizes bamboo fibers to prepare matrix material; Raw material is easy to get and energy-conserving and environment-protective; Performance to bamboo fiber/polypropylene composite material is not made associated description, yet because bamboo fibers is a hydrophilic substance, Vestolen PP 7052 is a hydrophobic polymer; So with overcoming its insoluble after its mixing is very difficult, has also determined the over-all properties of bamboo fiber/polypropylene composite material.
Summary of the invention
In order to overcome above-mentioned deficiency, technical problem to be solved provides a kind of novel bamboo fiber/polypropylene composite material just in the present invention, and the raw material bamboo fibers of this matrix material and Vestolen PP 7052 can be compatible well, have excellent mechanical property.
The technical problem that the present invention also will solve provides the preparation method of above-mentioned novel bamboo fiber/polypropylene composite material.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is following:
A kind of novel bamboo fiber/polypropylene composite material, it is a base material with the HOPP, adds a certain proportion of bamboo fibers and auxiliary agent, processes through thorough mixing, counts by weight, concrete prescription is formed as follows:
The fusion range of described HOPP is preferably 3～6g/10min, and (230 ℃, 2.16Kg), notched Izod impact strength is preferably 5.8～7.8KJ/m
2
Described bamboo fibers is through surface treatment; Its surface-treated method is: measure bamboo fibers by prescription and put into impeller under 100～120 ℃ of temperature condition; Stirred 40～60 minutes, and treated bamboo fibers thorough drying postcooling to 60～70 ℃, add the titanate coupling agent of formula ratio again; Under 70～80 ℃ of temperature condition, carry out 3～6 minutes stir process.
Described coupling agent is preferably titanate coupling agent.
Described lubricant is diffusant EB-FF preferably, like flower king EBS.
Described molecular weight regulator is preferably di-t-butyl peroxide.
As screening formulation, described novel bamboo fiber/polypropylene composite material is counted by weight, forms as follows:
The preparation method of above-mentioned novel bamboo fiber/polypropylene composite material, it comprises the steps:
1, the surface treatment of bamboo fibers: measure bamboo fibers by prescription and put into impeller under 100～120 ℃ of temperature condition; Stirred 40～60 minutes; Treat bamboo fibers thorough drying postcooling to 60～70 ℃; The titanate coupling agent that adds formula ratio again under 70～80 ℃ of temperature condition, carries out 3～6 minutes stir process;
2, HOPP, maleic anhydride graft PP, antioxidant 1010, oxidation inhibitor 168, lubricant and the molecular weight regulator of above-mentioned bamboo fibers of handling well and formula ratio are put into impeller and mix, join again that extruding pelletization promptly gets in the twin screw extruder.
Wherein, preferably:
Described twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48, and machine barrel is furnished with at least one heating unit and at least one venting hole;
Described extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
Beneficial effect: novel bamboo fiber/polypropylene composite material of the present invention compared with prior art has the following advantages:
(1), the present invention carries out surface treatment with bamboo fibers, first thorough drying adds coupling agent then; Further handle and make the bamboo fibers surface active; At its surface parcel one deck titanate coupling agent, thus improved and Vestolen PP 7052 between consistency, have excellent mechanical property; Improved polyacrylic plasticizing capacity simultaneously; Reduce melt viscosity, improve flowability, increase consistency and dispersiveness between the system each component effectively; Improve the bonding interface situation of material system; Also improved the aging and processing characteristics of goods in addition, and had heat stabilization, polyacrylic rigidity is greatly enhanced.
(2), because raw material bamboo fibers including fiber and warp and Vestolen PP 7052 thorough mixing, thereby have the resistance to compression suitable, physical and mechanical properties such as counter-bending with Vestolen PP 7052, and its wearing quality obviously is superior to Vestolen PP 7052.
(3), adopt special composition of raw materials, the novel bamboo fiber/polypropylene composite material that the present invention is formed has high-modulus, the characteristics of good fluidity, excellent combination property.
(4), owing to adopt lubricant to improve flowability; Adopt molecular weight regulator to improve flow rate; Make matrix material of the present invention not be only applicable to expressing technique such as extrusion sheet, sheet material, tubing of plastics etc., also be applicable to Shooting Technique such as small household appliances shell, household electrical appliance base etc.
(5), to adopt the bamboo fibers of pure natural be raw material in the present invention, environmental protection, preparation method are simple, environmentally safe is easy to realize large scale continuous prod.
Embodiment
Below in conjunction with specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to various equivalents of the present invention or modification.
Use raw material:
Embodiment 1
Take off the raw material of column weight amount umber:
Concrete preparation method carries out as follows:
1, the surface treatment of bamboo fibers: bamboo fibers is put into impeller under 110 ℃ of temperature condition; Stirred 50 minutes, and treated bamboo fibers thorough drying postcooling to 60 ℃ to add titanate coupling agent again; Under 70 ℃ of temperature condition, carry out 3 minutes stir process;
2, the above-mentioned bamboo fibers of handling well and HOPP, maleic anhydride graft PP, antioxidant 1010, oxidation inhibitor 168, lubricant and molecular weight regulator being put into impeller mixes; Join again that extruding pelletization is described novel bamboo fiber/polypropylene composite material in the twin screw extruder; Wherein, this twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48; Machine barrel is furnished with 6～9 heating units and 1～2 venting hole; The extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
Embodiment 2
Take off the raw material of column weight amount umber:
Concrete preparation method carries out as follows:
1, the surface treatment of bamboo fibers: bamboo fibers is put into impeller under 100 ℃ of temperature condition; Stirred 60 minutes, and treated bamboo fibers thorough drying postcooling to 65 ℃ to add titanate coupling agent again; Under 80 ℃ of temperature condition, carry out 5 minutes stir process; All the other are with embodiment 1.
Embodiment 3
Take off the raw material of column weight amount umber:
Concrete preparation method carries out as follows:
1, the surface treatment of bamboo fibers: bamboo fibers is put into impeller under 120 ℃ of temperature condition; Stirred 40 minutes, and treated bamboo fibers thorough drying postcooling to 70 ℃ to add titanate coupling agent again; Under 75 ℃ of temperature condition, carry out 6 minutes stir process; All the other are with embodiment 1.
Comparative Examples 1:
Take off the raw material of column weight amount umber:
98.2 parts of HOPPs
0.6 part of antioxidant 1010
168 1.2 parts in oxidation inhibitor.
Concrete preparation method carries out as follows:
HOPP, antioxidant 1010, oxidation inhibitor 168 and lubricant are put into impeller to mix; Join extruding pelletization in the twin screw extruder again; Wherein, this twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48; Machine barrel is furnished with 6～9 heating units and 1～2 venting hole, can independently control the temperature in each stage of reaction; The extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
Comparative Examples 2:
Take off the raw material of column weight amount umber:
Concrete preparation method carries out as follows:
HOPP, bamboo fibers, maleic anhydride graft PP, antioxidant 1010 and oxidation inhibitor 168 are put into impeller to be stirred; Join extruding pelletization in the twin screw extruder again; Wherein, this twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48; Machine barrel is furnished with 6～9 heating units and 1～2 venting hole, can independently control the temperature in each stage of reaction; The extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
Comparative Examples 3:
Take off the raw material of column weight amount umber:
Concrete preparation method carries out as follows:
HOPP, bamboo fibers, maleic anhydride graft PP, antioxidant 1010, oxidation inhibitor 168, lubricant and molecular weight regulator are put into impeller to be stirred; Join extruding pelletization in the twin screw extruder again; Wherein, this twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48; Machine barrel is furnished with 6～9 heating units and 1～2 venting hole, can independently control the temperature in each stage of reaction; The extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
The material of the foregoing description 1～3 and Comparative Examples 1～3 gained is carried out Performance Detection respectively, and the result is as shown in the table:
Can know by above result:
(1), to adopt not surface treated bamboo fibers be raw material, the modulus of matrix material has raising slightly, but that mechanical performance index improves is little, and impacts to some extent and descend.
(2), to adopt surface treated bamboo fibers be raw material, the flexural strength of matrix material and modulus have obtained significantly raising, and bamboo fibers content is high more, increase rate is big more, other mechanical property also is greatly improved.
(3), the adding of lubricant EB-FF improved flowability, the adding of molecular weight regulator makes flow rate improve 3 times, has solved wood plastic product and only can be used for extruding, and is not useable for the difficult problem of injection moulding.
Claims (9)
1. the fine dimension of a novel bamboo ∕ PP composite material is characterized in that it is a base material with the HOPP, adds a certain amount of bamboo fibers and auxiliary agent, processes through thorough mixing, counts by weight, and concrete prescription is formed as follows:
62.8～75.2 parts of HOPPs
20～38.7 parts of bamboo fiberss
0.2～0.4 part of coupling agent
0.8～1.2 part of maleic anhydride graft PP
0.03～0.06 part of antioxidant 1010
168 0.06～0.13 part in oxidation inhibitor
0.2～0.7 part of lubricant
Molecular weight regulator 0.03-0.09 part.
2. a kind of novel Zhu Xian Wei ∕ PP composite material according to claim 1 is characterized in that: the fusion range of described HOPP is that (230 ℃, 2.16Kg), notched Izod impact strength is 5.8～7.8KJ/m to 3～6g/10min
2
3. a kind of novel Zhu Xian Wei ∕ PP composite material according to claim 1; It is characterized in that: described bamboo fibers is through surface treatment, and its surface-treated method is: measure bamboo fibers by prescription and put into impeller under 100～120 ℃ of temperature condition, stirred 40～60 minutes; Treat bamboo fibers thorough drying postcooling to 60～70 ℃; The coupling agent that adds formula ratio again under 70～80 ℃ of temperature condition, carries out 3～6 minutes stir process.
4. according to each described a kind of novel Zhu Xian Wei ∕ PP composite material of claim 1 to 3, it is characterized in that: described coupling agent is a titanate coupling agent.
5. according to each described a kind of novel Zhu Xian Wei ∕ PP composite material of claim 1 to 3, it is characterized in that: described lubricant is diffusant EB-FF.
6. according to each described a kind of novel Zhu Xian Wei ∕ PP composite material of claim 1 to 3, it is characterized in that: described molecular weight regulator is a di-t-butyl peroxide.
7. a kind of novel Zhu Xian Wei ∕ PP composite material according to claim 1 is characterized in that described matrix material counts by weight, and concrete prescription is formed as follows:
68.245 parts of HOPPs
29.9 parts of bamboo fiberss
0.3 part of coupling agent
1 part of maleic anhydride graft PP
0.045 part of antioxidant 1010
168 0.1 parts in oxidation inhibitor
0.35 part of lubricant
0.06 part of molecular weight regulator.
8. a method for preparing the fine dimension of the said novel bamboo of claim 1 ∕ PP composite material is characterized in that comprising the steps:
(1) surface treatment of bamboo fibers: measure bamboo fibers by prescription and put into impeller under 100～120 ℃ of temperature condition; Stirred 40～60 minutes; Treat bamboo fibers thorough drying postcooling to 60～70 ℃; The titanate coupling agent that adds formula ratio again under 70～80 ℃ of temperature condition, carries out 3～6 minutes stir process;
(2) HOPP, maleic anhydride graft PP, antioxidant 1010, oxidation inhibitor 168, lubricant and the molecular weight regulator of above-mentioned bamboo fibers of handling well and formula ratio are put into impeller and mix, join again that extruding pelletization promptly gets in the twin screw extruder.
9. a kind of method for preparing novel Zhu Xian Wei ∕ PP composite material according to claim 7 is characterized in that:
Described twin screw extruder is a cocurrent and parallel engagement type twin screw extruder, and length-to-diameter ratio is 40～48, and machine barrel is furnished with at least one heating unit and at least one venting hole;
Described extruding pelletization temperature is 140～160 degree, and screw speed is 10～220rpm, and residence time of material is 3～5 minutes.
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| CN2011104476314A CN102558679A (en) | 2011-12-28 | 2011-12-28 | Novel bamboo fiber/polypropylene composite material and method for preparing same |
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| CN2011104476314A CN102558679A (en) | 2011-12-28 | 2011-12-28 | Novel bamboo fiber/polypropylene composite material and method for preparing same |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489558A (en) * | 2013-09-26 | 2014-01-01 | 赖陶颖 | Injection molding particle combination, injection molding particle and preparation method |
| CN104788889A (en) * | 2015-04-13 | 2015-07-22 | 浙江理工大学 | Preparation method for resin-based bamboo fiber composite material |
| CN105482480A (en) * | 2015-11-11 | 2016-04-13 | 国家林业局竹子研究开发中心 | Fiber reinforced thermoplasticity plastic |
| CN105623176A (en) * | 2014-11-03 | 2016-06-01 | 中国石油化工股份有限公司 | Plastic inspection well composite material and preparation method thereof |
| CN106084482A (en) * | 2016-07-29 | 2016-11-09 | 安徽国风木塑科技有限公司 | A kind of bamboo powder/PP wood moulds enhancing wallboard and processing method thereof |
| CN106279747A (en) * | 2016-08-11 | 2017-01-04 | 北京汽车集团有限公司 | A kind of method preparing automotive upholstery and automotive upholstery |
| CN108117696A (en) * | 2018-01-31 | 2018-06-05 | 浙江明江新材料科技有限公司 | A kind of bamboo fiber/polypropylene composite material and its preparation method and application |
| CN108276614A (en) * | 2018-03-03 | 2018-07-13 | 黄旭东 | A kind of preparation method of modified fibre base Wood plastic composite |
| CN108407254A (en) * | 2018-03-15 | 2018-08-17 | 苏州金韦尔机械有限公司 | Twin-screw extrusion production line and its method for manufacturing PP building templates |
| CN114350168A (en) * | 2021-12-27 | 2022-04-15 | 苏州市和好塑业有限公司 | Box type formula capable of discharging stably and preparation method |
| CN115124776A (en) * | 2022-05-30 | 2022-09-30 | 湖南协成管业科技有限公司 | Natural bamboo fiber modified PE or PP composite material and preparation method thereof |
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| CN103489558B (en) * | 2013-09-26 | 2016-05-18 | 德清晶格磁电科技有限公司 | Injection moulding is composition, injection moulding pellet and preparation method for pellet |
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| CN105623176B (en) * | 2014-11-03 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of plastic inspection well composite and preparation method thereof |
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| CN106279747B (en) * | 2016-08-11 | 2019-07-23 | 北京汽车集团有限公司 | A kind of method preparing automotive upholstery and automotive upholstery |
| CN106279747A (en) * | 2016-08-11 | 2017-01-04 | 北京汽车集团有限公司 | A kind of method preparing automotive upholstery and automotive upholstery |
| CN108117696A (en) * | 2018-01-31 | 2018-06-05 | 浙江明江新材料科技有限公司 | A kind of bamboo fiber/polypropylene composite material and its preparation method and application |
| CN108276614A (en) * | 2018-03-03 | 2018-07-13 | 黄旭东 | A kind of preparation method of modified fibre base Wood plastic composite |
| CN108407254A (en) * | 2018-03-15 | 2018-08-17 | 苏州金韦尔机械有限公司 | Twin-screw extrusion production line and its method for manufacturing PP building templates |
| CN108407254B (en) * | 2018-03-15 | 2020-07-31 | 苏州金韦尔机械有限公司 | Double-screw extrusion production line and method for manufacturing PP building template |
| CN114350168A (en) * | 2021-12-27 | 2022-04-15 | 苏州市和好塑业有限公司 | Box type formula capable of discharging stably and preparation method |
| CN115124776A (en) * | 2022-05-30 | 2022-09-30 | 湖南协成管业科技有限公司 | Natural bamboo fiber modified PE or PP composite material and preparation method thereof |
| CN115124776B (en) * | 2022-05-30 | 2023-03-28 | 湖南协成管业科技有限公司 | Natural bamboo fiber modified PE or PP composite material and preparation method thereof |
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Application publication date: 20120711 |