CN102311584A - Medical polypropylene material - Google Patents
Medical polypropylene material Download PDFInfo
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- CN102311584A CN102311584A CN201110210602A CN201110210602A CN102311584A CN 102311584 A CN102311584 A CN 102311584A CN 201110210602 A CN201110210602 A CN 201110210602A CN 201110210602 A CN201110210602 A CN 201110210602A CN 102311584 A CN102311584 A CN 102311584A
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Abstract
The invention discloses a medical polypropylene material. The medical polypropylene material comprises: by weight, 100 parts of polypropylene resin, 0.5 to 2 parts of a cooling masterbatch, 0.2 to 0.3 parts of a transparent nucleating agent, 5 to 10 parts of a flexibilizer, 0.5 to 1 part of a high-molecular antistatic agent, 0.5 to 1 part of a lubricant ethylene bis-stearamide (EBS) and 0.2 to 0.5 parts of anti-oxidants. The polypropylene resin is a homopolymer. The high-molecular antistatic agent is hydroxyethyl fatty amine. The transparent nucleating agent is an alpha-crystal form nucleating agent. The flexibilizer is an ethane-octylene-propylene copolymer. The invention also provides a preparation method of the medical polypropylene material. The medical polypropylene material has the advantages of good toughness, especially, good low temperature toughness, good liquidity, high transparency and good antistatic effects. Therefore, the medical polypropylene material can be utilized for mass production of multi-cavity molds.
Description
Technical field
The present invention relates to Vestolen PP 7052 (PP) modification field, be specifically related to a kind of low temperature resistant, high mobile, toughness reinforcing transparent, antistatic polypropylene for medical article material.
Background technology
Vestolen PP 7052 (PP) is one of five big general-purpose plastics, and it has excellent mechanical property, good, the high-frequency insulation excellent property of good heat-resistant chemicalstability.But Vestolen PP 7052 also has significant disadvantages: transparency is not that fine, flowability is not prone to produce static etc. in high and low temperature poor toughness and the course of processing.The bad product that makes of transparency seems very mist, influences attractive in appearance; Mobile bad meeting causes the PP material can't die cavity be full of the product defectiveness when on the big mould in many types of chamber, beating product; Make in cold place and PP goods poor toughness occur disrepair phenomenon easily; Because its intramolecule lacks polar group, water absorbability is poor, causes the PP material to have high surface resistivity and volume specific resistance, makes accumulation and the serious static hazard of output that static charge takes place in production process easily.Present most of producer adopts atactic copolymerized polypropene, can't solve electrostatic problem, and price generally is higher than HOPP.With regard to transparency and toughness, do common product and be fine, but the expensive goods that will do high-transparency high-toughness just dying.A lot of flowability problem that solve realize by increasing injection pressure, and are very big to the injection moulding machine influence if things go on like this.
Summary of the invention
In view of above-mentioned weak point, the object of the present invention is to provide a kind of low temperature resistant, toughness reinforcing transparent, antistatic polypropylene for medical article material.And the present invention has good flowability in injection moulding process, product defective can not occur, has thoroughly solved the problem of static to the human injury simultaneously.
In order to achieve the above object, the present invention has adopted following technical scheme: the flowability toughened transparent antistatic polypropylene for medical article of a kind of low temperature resistant height material, and this polypropylene material is counted by weight ratio by following composition and is processed: 100 parts of HOPP resins; Cooling masterbatch J1010:0.5-2 part; Transparent nucleater: 0.2-0.3 part, toughner: 5-10 part, polymeric antistatic agent: 0.5-1 part; Lubricant: 0.5-1 part, oxidation inhibitor: 0.2-0.5 part.
Characteristics such as said cooling masterbatch J1010 is a kind of additive of acrylic resin, and it has extremely strong flowing property, and good mark property, melting index are very high, and the surface of good glossiness is arranged, and is more nontoxic than higher transparency, tasteless.The mobile master batch cooling masterbatch (J1010) of polymer is mainly used in high filled polypropylene, PP non-woven fabrics, PP injection-molded item, PP wire drawing, PP woven bag silk etc.Improve the melting index of resin, increase resin color range, reduce and shrink, strengthen rigidity, reduce extrusion temperature, make tree refer to can be stable the tie rod of extruding.It is particle form, white, Rong Rongzhishuo>200g/10min, effective constituent 7%, density 0.9g/cm
3, Vicat softening point is 150 ℃.
Said transparent nucleater is alpha-crystal form nucleator two (3,4 a dimethyl benzene methylene radical) sorbyl alcohol (DMDBS), and higher, the better effects if of its nucleation efficient increases transparency greatly, in the machine-shaping process, has no pungent odour, more environmental protection, more healthy;
Said toughner is POE (adopting the ethene of metallocene catalyst and the thermoplastic elastomer that octene is realized in-situ polymerization), with the polypropylene matrix resin good consistency is arranged, and toughening effect is higher, especially low-temperature flexibility.
Said polymeric antistatic agent is that hydroxyethyl aliphatic amide and matrix resin and other auxiliary agents have good avidity, has guaranteed the polymolecularity in material, has improved anlistatig homogeneity and longer duration.
Said lubricant is EBS (ethylenebisstearamide), has certain antistatic effect concurrently when having very high inside and outside lubricant effect, is to a certain degree improving the material antistatic effect.
Said oxidation inhibitor is the mixing oxidation inhibitor of antioxidant 1010 and oxidation inhibitor 168, and the mass ratio of antioxidant 1010 and oxidation inhibitor 168 is 1:2.
A kind of polypropylene for medical article preparation methods, this method comprises by following steps to be formed:
(1) according to above-mentioned formula ratio each composition was mixed in high-speed mixer 3 to 5 minutes, make each composition fully disperse compound;
(2) compound that mixes is placed parallel double-screw extruder melt extrudes, pelletizing; This parallel double-screw extruder expressing technique condition is: 190 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 195 ℃ in four districts, and engine speed 420r/min, feeding rotating speed 220r/min adopts the water-cooled pelletizing.
Beneficial effect of the present invention is: polypropylene material toughness of the present invention especially low-temperature flexibility is good, and mobile high, transparency is high, and antistatic effect is good, can be used for the multi-imprssion mould tool and produce in enormous quantities.
Embodiment
Embodiment 1
Take by weighing HOPP resin 100kg, cooling masterbatch J1010 is 0.5kg, two (3,4 dimethyl benzene methylene radical) sorbyl alcohol 0.2kg; POE5kg, hydroxyethyl aliphatic amide 0.5kg, EBS0.50kg; Antioxidant 1010 is 0.07 kg; Oxidation inhibitor 168 is 0.14kg, and the above-mentioned sub-material that respectively becomes that takes by weighing was mixed in high-speed mixer 3 to 5 minutes, make each composition fully disperse compound; The compound that mixes placed parallel double-screw extruder melt extrudes, pelletizing; This parallel double-screw extruder expressing technique condition is: 190 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 195 ℃ in four districts, and engine speed 420r/min, feeding rotating speed 220r/min adopts the water-cooled pelletizing.
Embodiment 2
Take by weighing HOPP resin 100kg, cooling masterbatch J1010 is 1.2kg, two (3,4 dimethyl benzene methylene radical) sorbyl alcohol 0.25kg; POE8kg; Hydroxyethyl aliphatic amide 0.8kg, EBS0.8kg, antioxidant 1010 are 0.1 kg; Oxidation inhibitor 168 is 0.2kg, makes the polypropylene for medical article material according to embodiment 1 said preparation method then.
Embodiment 3
Take by weighing HOPP resin 100kg, cooling masterbatch J1010 is 2kg, two (3,4 dimethyl benzene methylene radical) sorbyl alcohol 0.3kg; POE10kg; Hydroxyethyl aliphatic amide 1kg, EBS1kg, antioxidant 1010 are 0.15 kg; Oxidation inhibitor 168 is 0.3kg, makes the polypropylene for medical article material according to embodiment 1 said preparation method then.
Product and several kinds of products commonly used that the present invention makes are done corresponding test contrast, drawn following data (seeing table 1).
Table 1 material property of the present invention and product material performance test data contrast table commonly used
| Test event | Material of the present invention | K4912 | M1600E | R370Y |
| Transparency (%) | 86-88 | 84.7 | 79.3 | 85.1 |
| Cantilever beam impact strength (J/m) (20 ℃) | 110-118 | 100 | 25 | 87 |
| Cantilever beam impact strength (J/m) (10 ℃) | 30-42 | 17 | 7 | 15 |
| Melt flow rate(MFR) (g/10min) | 19-20 | 12 | 16±3 | 18 |
The present invention is carried out antistatic test, adopted ZC36 type megger sample to be tested to be carried out the test of surface resistivity.Detailed data is seen table 2.
The antistatic test data contrast table of table 2
| Test group | Surface resistivity/Ω |
| Pure PP | 5.20×10 15 |
| Material of the present invention | 1.18×10 12-8.40×10 13 |
Serious when accumulation of static electricity, when surface resistivity reaches 1015 ~ 1018 Ω, can cause injury to the people.Can find out that by last table the present invention can drop to surface resistivity below 1015 Ω, thereby reach anlistatig effect through adding static inhibitor hydroxyethyl aliphatic amide.
Claims (7)
1. polypropylene for medical article material, it is characterized in that: this polypropylene material is counted by weight ratio by following composition and is processed:
100 parts of HOPP resins
Cooling masterbatch J1010 0. 5-2 part
Transparent nucleater 0.2-0.3 part
Toughner 5-10 part
Polymeric antistatic agent 0.5-1 part
Lubricant 0.5-1 part
Oxidation inhibitor 0.2-0.5 part.
2. polypropylene for medical article material according to claim 1 is characterized in that: said transparent nucleater is alpha-crystal form nucleator two (3,4 a dimethyl benzene methylene radical) sorbyl alcohol.
3. polypropylene for medical article material according to claim 1 is characterized in that: said toughner is POE.
4. polypropylene for medical article material according to claim 1 is characterized in that: said polymeric antistatic agent is the hydroxyethyl aliphatic amide.
5. polypropylene for medical article material according to claim 1 is characterized in that: said lubricant is EBS.
6. polypropylene for medical article material according to claim 1 is characterized in that: said oxidation inhibitor is the mixing oxidation inhibitor of antioxidant 1010 and oxidation inhibitor 168, and the mass ratio of antioxidant 1010 and oxidation inhibitor 168 is 1:2.
7. the method for preparing polypropylene for medical article material as claimed in claim 1 is characterized in that this method comprises by following steps to form:
(1) according to above-mentioned formula ratio each composition was mixed in high-speed mixer 3 to 5 minutes, make each composition fully disperse compound;
(2) compound that mixes is placed parallel double-screw extruder melt extrudes, pelletizing; This parallel double-screw extruder expressing technique condition is: 190 ℃ in a district, 210 ℃ in two districts, 210 ℃ in three districts, 195 ℃ in four districts, and engine speed 420r/min, feeding rotating speed 220r/min adopts the water-cooled pelletizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011102106026A CN102311584B (en) | 2011-07-26 | 2011-07-26 | Medical polypropylene material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102106026A CN102311584B (en) | 2011-07-26 | 2011-07-26 | Medical polypropylene material |
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| CN102311584A true CN102311584A (en) | 2012-01-11 |
| CN102311584B CN102311584B (en) | 2013-05-15 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923398A (en) * | 2013-01-15 | 2014-07-16 | 浙江交联辐照材料有限公司 | Polypropylene composite granular material used for radiation crosslinking foaming and preparation technology for foamed plastic |
| CN105837909A (en) * | 2016-05-22 | 2016-08-10 | 金婷婷 | Cold-resistant polyethylene material |
| CN105924775A (en) * | 2016-05-22 | 2016-09-07 | 金婷婷 | Low-temperature-resistant polypropylene material |
| CN106009251A (en) * | 2016-05-22 | 2016-10-12 | 金婷婷 | Cold-resistant high-toughness polypropylene material |
| CN109486006A (en) * | 2018-11-07 | 2019-03-19 | 宿迁市春明医疗器材有限公司 | A kind of injector for medical purpose PP material |
| CN111087682A (en) * | 2019-12-12 | 2020-05-01 | 珠海市直升塑料制品有限公司 | Medical plastic package processing technology |
| CN113388199A (en) * | 2021-06-11 | 2021-09-14 | 高邮市汉升高分子材料有限公司 | Preparation method of medical transparent polypropylene material |
| CN113881141A (en) * | 2021-10-27 | 2022-01-04 | 浙江坤诚塑业有限公司 | High-transparency antistatic polypropylene woven bag material and preparation method thereof |
| CN114702755A (en) * | 2022-05-13 | 2022-07-05 | 张家港绿洲新材料科技有限公司 | Functional master batch suitable for thin-wall high-length-diameter-ratio polypropylene ribbon and preparation method and application thereof |
| CN116144099A (en) * | 2021-11-19 | 2023-05-23 | 张家港绿洲新材料科技有限公司 | Thin-wall high-length-diameter-ratio polypropylene ribbon and application thereof |
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| CN101503539A (en) * | 2009-02-26 | 2009-08-12 | 浙江富丽新材料有限公司 | Toughened cold-resistant transparent modified polypropylene material and preparation |
| CN101712780A (en) * | 2009-08-25 | 2010-05-26 | 上海普利特复合材料股份有限公司 | Low-density, high-rigidity and high-tenacity polypropylene nano composite material and preparation method thereof |
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2011
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Patent Citations (3)
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| CN101503539A (en) * | 2009-02-26 | 2009-08-12 | 浙江富丽新材料有限公司 | Toughened cold-resistant transparent modified polypropylene material and preparation |
| CN101712780A (en) * | 2009-08-25 | 2010-05-26 | 上海普利特复合材料股份有限公司 | Low-density, high-rigidity and high-tenacity polypropylene nano composite material and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923398A (en) * | 2013-01-15 | 2014-07-16 | 浙江交联辐照材料有限公司 | Polypropylene composite granular material used for radiation crosslinking foaming and preparation technology for foamed plastic |
| CN105837909A (en) * | 2016-05-22 | 2016-08-10 | 金婷婷 | Cold-resistant polyethylene material |
| CN105924775A (en) * | 2016-05-22 | 2016-09-07 | 金婷婷 | Low-temperature-resistant polypropylene material |
| CN106009251A (en) * | 2016-05-22 | 2016-10-12 | 金婷婷 | Cold-resistant high-toughness polypropylene material |
| CN109486006A (en) * | 2018-11-07 | 2019-03-19 | 宿迁市春明医疗器材有限公司 | A kind of injector for medical purpose PP material |
| CN111087682A (en) * | 2019-12-12 | 2020-05-01 | 珠海市直升塑料制品有限公司 | Medical plastic package processing technology |
| CN113388199A (en) * | 2021-06-11 | 2021-09-14 | 高邮市汉升高分子材料有限公司 | Preparation method of medical transparent polypropylene material |
| CN113881141A (en) * | 2021-10-27 | 2022-01-04 | 浙江坤诚塑业有限公司 | High-transparency antistatic polypropylene woven bag material and preparation method thereof |
| CN113881141B (en) * | 2021-10-27 | 2024-05-24 | 浙江坤诚塑业有限公司 | High-transparency antistatic polypropylene woven bag material and preparation method thereof |
| CN116144099A (en) * | 2021-11-19 | 2023-05-23 | 张家港绿洲新材料科技有限公司 | Thin-wall high-length-diameter-ratio polypropylene ribbon and application thereof |
| CN116144099B (en) * | 2021-11-19 | 2024-04-12 | 张家港绿洲新材料科技有限公司 | Thin-wall high-length-diameter-ratio polypropylene ribbon and application thereof |
| CN114702755A (en) * | 2022-05-13 | 2022-07-05 | 张家港绿洲新材料科技有限公司 | Functional master batch suitable for thin-wall high-length-diameter-ratio polypropylene ribbon and preparation method and application thereof |
| CN114702755B (en) * | 2022-05-13 | 2024-01-09 | 张家港绿洲新材料科技有限公司 | Functional master batch applicable to thin-wall high-length-diameter-ratio polypropylene ribbon as well as preparation method and application thereof |
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| CN102311584B (en) | 2013-05-15 |
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