CN101633755B - Nano modification high-density polyethylene composite material and method for preparing same - Google Patents
Nano modification high-density polyethylene composite material and method for preparing same Download PDFInfo
- Publication number
- CN101633755B CN101633755B CN2008100408000A CN200810040800A CN101633755B CN 101633755 B CN101633755 B CN 101633755B CN 2008100408000 A CN2008100408000 A CN 2008100408000A CN 200810040800 A CN200810040800 A CN 200810040800A CN 101633755 B CN101633755 B CN 101633755B
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- Prior art keywords
- density polyethylene
- nano
- modification
- composite material
- barium sulfate
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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
- B29C48/25—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 provides a nano modification high-density polyethylene composite material and a method for preparing the same and relates to the preparation of a high-performance high-density polyethylene composite material. The invention provides the method for preparing the nano particle/high-density polyethylene composite material. According to the technical scheme of the invention, modified nano barium sulfate powder, high-density polyethylene, a double-screw extruder, a granulator and an injection molding machine are adopted. The method is characterized by: fully mixing the modified nano barium sulfate and the dried high-density polyethylene materials in a ratio (the nano particle accounts for 1 to 5 percent of the mass of the high-density polyethylene); adding the mixture to the double-screw extruder at an operating temperature of between 170 and 220 DEG C, a screw speed of between 160 and 220r/min and a charging screw speed of between 30 and 150r/min; extruding the mixture out of the extruder after melting and co-blending the mixture, water cooling the obtained product; granulating the product by the granulator; drying the particle, and injection-molding the particle into the nano modification high-density polyethylene composite material by the injection molding machine. The method is applied to the preparation of the nano modification high-density polyethylene composite material.
Description
Technical field
The present invention relates to high-performance, high-density polyethylene nano composite material and preparation method thereof.
Background technology
The inorganic nano-particle median size is in the transition zone of macroscopic view and microcosmic, surface atom is many, specific surface area is big and surface energy is high, can demonstrate unique characteristics such as small-size effect, surface effects and macro quanta tunnel effect, has the characteristic that many conventional materials do not have, nanoparticle can give macromolecular material some property to the obvious modification of polymkeric substance.
Existing patent of invention " a kind of preparation of high performance polymer weight northylen/laminated nm-silicate composite material " (publication number: be CN 1300234C) by coupling processing and little crosslinked realization organic polymer body bounding force at layered silicate outside surface and interlayer; Existing patent of invention " preparation of nano-calcium carbonate/composite polyethylene material " (publication number: be CN 1373151A), modified particle is mixed with polythene material, extrude the preparation nano composite material with the nano-calcium carbonate coupling agent treatment; (publication number: CN 1640923A) Zhi Bei carbon nanotube loaded catalyzer carries out vinyl polymerization to existing patent of invention " in-situ polymerization method for preparing of carbon nanotube and composite polyethylene material " in the presence of the alkyl metal cpd promotor, obtains carbon nanotube and poly mixture.
Three above-mentioned invention disclosed patents are all to a certain degree improving poly mechanical strength, but the costing an arm and a leg of layered nano silicate and carbon nanotube, and the process of surface treatment complexity; Though nano-calcium carbonate is cheap, the nano composite material tensile strength of its preparation improves, but the raising to the polyethylene shock strength is very limited, need a kind ofly can improve the nano modification high-density polyethylene composite material preparation method that intensity can reduce the cost again.
Summary of the invention
The problem that the present invention need solve provides and a kind ofly can improve nanoparticle/high-density polyethylene composite material preparation method that intensity can reduce the cost again.
Technical scheme of the present invention adopts the nano barium sulfate powder of modification; high density polyethylene(HDPE); twin screw extruder; dicing machine; injection moulding machine; it is characterized in that the nano barium sulfate of modification in proportion behind (the quality percentage composition that nanoparticle accounts for high density polyethylene(HDPE) is 1～5%) and the exsiccant high-density polyethylene material thorough mixing; joining service temperature is 170～220 ℃; screw speed is 160～220r/min; behind melt blending, extrude in the twin screw extruder of reinforced screw speed 30～150r/min; through water-cooled; the dicing machine granulation; after the pellet drying, be injection molded into nano modification high-density polyethylene composite material with injection moulding machine.
The advantage of present method is that technology is simple, technical indicator is rationally reliable, practical, easy handling, reduce cost, realized that nanoparticle exists with nanoscopic level dispersion in high-density polyethylene material, improved the tensile strength and the shock strength of high-density polyethylene material simultaneously.
Embodiment
Just influence the various factors of nano modification high-density polyethylene composite material performance below respectively, introduce and implement best way of the present invention.
Nano-powder of the present invention is barium sulfate powder (as the Pla-800 of Shanghai Anyi Nano Material Co., Ltd nano barium sulfate) or the ore powder that contains barium sulfate.The main component of ore powder is the multiple element compounds such as barium, strontium, silicon.The particle diameter that contains the ore powder of barium sulfate is 10～50nm.
The nano-powder of modification of the present invention is the barium sulfate powder of sodium stearate coating modification, or the ore powder that contains barium sulfate of sodium stearate coating modification.
Nano modification high-density polyethylene composite material preparation technology is as follows:
The nano-powder of modification is mixed with high density polyethylene(HDPE), and wherein the quality percentage composition of nano-powder in mixture is 1～5%; Put into high mixer then, dispersed with stirring 10～40min, temperature remains on 20～50 ℃;
Said mixture is carried out the nano composite material that melt blending is made modification through twin screw extruder, and the service temperature of forcing machine is 170～220 ℃, and screw speed is 220r/min, feed screw rotating speed 150r/min;
Pellet is injection molded into Mechanics Performance Testing standard batten/nano modification high-density polyethylene composite material with injection moulding machine after drying, injection moulding machine injection moulding temperature of fusion scope between 200 ~ 250 ℃, die temperature: 50 ~ 95 ℃, injection pressure: 70 ~ 110MPa.
The influence of nanoparticle quality percentage composition and high density polyethylene(HDPE) mechanical property the results are shown in Table 1 in the nano modification high-density polyethylene composite material course of processing.
The influence of table 1 nanoparticle quality percentage composition and high density polyethylene(HDPE) mechanical property
As can be seen from Table 1, add tensile strength and the shock strength that nanoparticle has improved high density polyethylene(HDPE) simultaneously; The nano modification high-density polyethylene composite material of present method preparation shows through the SEM photo and shows, nanoparticle is evenly dispersed in the matrix of high density polyethylene(HDPE), nanoparticle and high density polyethylene(HDPE) matrix bond are good, and the particle diameter that nanoparticle is dispersed in the high density polyethylene(HDPE) matrix is 100～200nm.
Claims (3)
1. the preparation method of nano modification high-density polyethylene composite material; adopt the nano barium sulfate powder of modification; high density polyethylene(HDPE); twin screw extruder; dicing machine; injection moulding machine; the nano barium sulfate powder of described modification is the barium sulfate powder of sodium stearate coating modification; or the ore powder that contains barium sulfate of sodium stearate coating modification; after it is characterized in that the quality percentage composition that the nano barium sulfate of modification accounts for high density polyethylene(HDPE) in the nano barium sulfate of modification is 1～5% ratio and exsiccant high-density polyethylene material thorough mixing; joining service temperature is 170～220 ℃; screw speed is 160～220r/min; behind melt blending, extrude in the twin screw extruder of reinforced screw speed 30～150r/min; through water-cooled; the dicing machine granulation; after the pellet drying, be injection molded into nano modification high-density polyethylene composite material with injection moulding machine.
2. the preparation method of nano modification high-density polyethylene composite material according to claim 1 is characterized in that the nano barium sulfate of modification and high density polyethylene(HDPE) put into high-speed mixer and mixing dispersed with stirring 10～40min, and temperature remains on 20～50 ℃.
3. the preparation method of nano modification high-density polyethylene composite material according to claim 1 and 2 is characterized in that injection moulding machine injection moulding temperature of fusion scope between 200～250 ℃, 50～95 ℃ of die temperatures, injection pressure 70～110MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100408000A CN101633755B (en) | 2008-07-21 | 2008-07-21 | Nano modification high-density polyethylene composite material and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100408000A CN101633755B (en) | 2008-07-21 | 2008-07-21 | Nano modification high-density polyethylene composite material and method for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633755A CN101633755A (en) | 2010-01-27 |
| CN101633755B true CN101633755B (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100408000A Expired - Fee Related CN101633755B (en) | 2008-07-21 | 2008-07-21 | Nano modification high-density polyethylene composite material and method for preparing same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864103B (en) * | 2010-07-02 | 2012-08-08 | 天津市医疗器械厂 | Mixture for intrauterine device |
| CN103948968B (en) * | 2014-05-13 | 2019-02-19 | 天津德岩科技有限公司 | Et al. Ke composite material and preparation method with X-ray developing performance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945133A (en) * | 1997-09-29 | 1999-08-31 | Zerafati-Jahromi; Mohammad Saeid | Injection molding machine with non-intermeshing twin screw compounder feeder |
| CN1358791A (en) * | 2000-12-12 | 2002-07-17 | 海尔科化工程塑料国家工程研究中心有限公司 | Polymer organic nano composite ocmposition for making agriculture greenhouse film and preparation process thereof |
| CN101012324A (en) * | 2007-01-25 | 2007-08-08 | 宝鸡市云鹏塑料科技有限公司 | Nano modified plastic composite material, preparing method thereof and special-purpose apparatus |
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2008
- 2008-07-21 CN CN2008100408000A patent/CN101633755B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945133A (en) * | 1997-09-29 | 1999-08-31 | Zerafati-Jahromi; Mohammad Saeid | Injection molding machine with non-intermeshing twin screw compounder feeder |
| CN1358791A (en) * | 2000-12-12 | 2002-07-17 | 海尔科化工程塑料国家工程研究中心有限公司 | Polymer organic nano composite ocmposition for making agriculture greenhouse film and preparation process thereof |
| CN101012324A (en) * | 2007-01-25 | 2007-08-08 | 宝鸡市云鹏塑料科技有限公司 | Nano modified plastic composite material, preparing method thereof and special-purpose apparatus |
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| CN101633755A (en) | 2010-01-27 |
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Granted publication date: 20111102 Termination date: 20190721 |