CN104945743A - Medical ring-pull type combined cover outer cover polypropylene material and preparation method thereof - Google Patents
Medical ring-pull type combined cover outer cover polypropylene material and preparation method thereof Download PDFInfo
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- CN104945743A CN104945743A CN201510412871.9A CN201510412871A CN104945743A CN 104945743 A CN104945743 A CN 104945743A CN 201510412871 A CN201510412871 A CN 201510412871A CN 104945743 A CN104945743 A CN 104945743A
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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
- C08L23/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention relates to the field of polypropylene modification, in particular to a medical ring-pull type combined cover outer cover polypropylene material and a preparation method thereof. The polypropylene material is prepared by the following raw materials, by weight, 100 parts of polypropylene resin, 10-30 parts of plasticizer, 10-20 parts of flexibilizer, 2-8 parts of polyethylene, 0.4-1.0 part of a lubricating agent and 0.1-0.5 part of antioxygen, wherein the polypropylene resin is transparent co-polypropylene resin, the plasticizer is made of mineral oil, the flexibilizer is SEBS, and the polyethylene is low-density polyethylene resin. The softness of the polypropylene material is good, the toughness, particularly the low-temperature toughness, is good, the mobility is high, the transparency is high, and the polypropylene material can be used for multi-cavity mould large-scale production. The invention provides the preparation method of the polypropylene material at the same time, and the preparation method is simple in technology and easy to achieve.
Description
Technical field
The present invention relates to polypropylene (PP) modification field, be specifically related to a kind of medical draw-ring type combination cover enclosing cover polypropylene material and preparation method thereof.
Background technology
Polypropylene (PP) is one of five large general-purpose plastics, there is excellent mechanical property, good resistance toheat, chemical stability is good, high-frequency insulation excellent property, also has obvious shortcoming: mobility is not high, flexibility is poor, low-temperature flexibility is poor simultaneously.Die cavity cannot be full of during injecting products by the not high polypropylene material that makes of mobility on the large mould of cavity, product defectiveness.At present, solve flowability problem and realize by increasing injection pressure, very large to injection moulding machine performance impact if things go on like this; Flexibility is poor, low-temperature flexibility official post obtains polypropylene articles and easily brittle failure occurs when cold local use, occurs disrepair phenomenon, affects the use of product.General polypropylene material does common product and is fine, but to do high workability, softness, high tenacity product be just difficult to meet service requirements.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide good, low temperature resistant, the toughness reinforcing transparent medical draw-ring type combination cover enclosing cover polypropylene material of a kind of flexibility; The present invention provides its preparation method simultaneously, and technique is simple, be easy to realize.
Medical draw-ring type combination cover enclosing cover polypropylene material of the present invention, be made up of the raw material of following parts by weight:
Wherein:
Described softening agent is a kind of water white transparency shape mineral oil, has higher mobility, good dispersiveness, nonpoisonous and tasteless, the feature stable to light, heat, acid etc.After acrylic resin blending extrusion, significantly can improve the melting index of resin, increase the flexibility of material, reduce extrusion temperature.
Described toughner is SEBS (take polystyrene as end segment, the ethylene-butene copolymer obtained with polyhutadiene hydrogenation is the linear three block copolymer of middle spring block).There is good consistency with acrylic resin, flexibility and the toughness of material can be increased, especially low-temperature flexibility.
Described polyethylene is Low Density Polyethylene, and density is lower, and material is softer, and lower temperature resistance is good, can produce act synergistically with SEBS, increases toughness and the lower temperature resistance of resin.
Described lubricant is EBS (ethylenebisstearamide), has very high inside and outside lubricant effect, also effectively can improve the melt mass flow rate of material simultaneously.
Described oxidation inhibitor is the composite antioxidant of antioxidant 1010 and irgasfos 168; The mass ratio of antioxidant 1010 and irgasfos 168 is 1:2.
The preparation method of described medical draw-ring type combination cover enclosing cover polypropylene material, comprises the steps:
(1) by formula ratio, each component is mixed 8 to 10 minutes in high-speed mixer, obtain compound;
(2) compound that step (1) prepares is placed in parallel dual-screw extruding machine melt extrudes, pelletizing.
Wherein, in step (2), parallel dual-screw extruding machine expressing technique condition is: 160 ± 10 DEG C, a district, 160 ± 10 DEG C, 2nd district, 160 ± 10 DEG C, 3rd district, 165 ± 10 DEG C, 4th district, 165 ± 10 DEG C, 5th district, 165 ± 10 DEG C, 6th district, 170 ± 10 DEG C, 7th district, 170 ± 10 DEG C, 8th district, 170 ± 10 DEG C, 9th district, head 170 ± 10 DEG C, engine speed 400 ± 50r/min, feeding rotating speed 200 ± 50r/min, adopts water cooling bracing pelletizing.
In sum, beneficial effect of the present invention is as follows:
(1) especially flexibility is good, low-temperature flexibility is good for medical draw-ring type combination cover enclosing cover polypropylene material toughness of the present invention, and mobility is high, and transparency is high, may be used for multiple-cavity mold and produces in enormous quantities.
(2) preparation method of the present invention, technique is simple, be easy to realize.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The all raw materials used in embodiment, except specified otherwise, are commercial.
Embodiment 1
Medical draw-ring type combination cover enclosing cover polypropylene material described in the present embodiment is made up of following raw material:
The transparent acrylic resin copolymer of 100kg, 10kg softening agent white oil, 10kg toughner SEBS, 2kg polyethylene, 0.4kg Lubricate EBS, 0.05kg antioxidant 1010 and 0.1kg irgasfos 168.
Preparation method is:
(1) the above-mentioned various materials taken mix 8 minutes in high-speed mixer, obtain compound;
(2) compound that step (1) prepares is placed in parallel dual-screw extruding machine melt extrudes, pelletizing.
Wherein, in step (2), parallel dual-screw extruding machine expressing technique condition is: 150 DEG C, a district, 150 DEG C, 2nd district, 150 DEG C, 3rd district, 155 DEG C, 4th district, 155 DEG C, 5th district, 155 DEG C, 6th district, 160 DEG C, 7th district, 160 DEG C, 8th district, 160 DEG C, 9th district, head 160 DEG C, engine speed 350r/min, feeding rotating speed 150r/min, adopts water cooling bracing pelletizing.
Embodiment 2
Medical draw-ring type combination cover enclosing cover polypropylene material described in the present embodiment is made up of following raw material:
The transparent acrylic resin copolymer of 100kg, 20kg softening agent white oil, 15kg toughner SEBS, 6kg polyethylene, 0.7kg Lubricate EBS, 0.1kg antioxidant 1010 and 0.2kg irgasfos 168.
Preparation method is:
(1) the above-mentioned various materials taken mix 9 minutes in high-speed mixer, obtain compound;
(2) compound that step (1) prepares is placed in parallel dual-screw extruding machine melt extrudes, pelletizing.
Wherein, in step (2), parallel dual-screw extruding machine expressing technique condition is: 160 DEG C, a district, 160 DEG C, 2nd district, 160 DEG C, 3rd district, 165 DEG C, 4th district, 165 DEG C, 5th district, 165 DEG C, 6th district, 170 DEG C, 7th district, 170 DEG C, 8th district, 170 DEG C, 9th district, head 170 DEG C, engine speed 400r/min, feeding rotating speed 200r/min, adopts water cooling bracing pelletizing.
Embodiment 3
Medical draw-ring type combination cover enclosing cover polypropylene material described in the present embodiment is made up of following raw material:
The transparent acrylic resin copolymer of 100kg, 30kg softening agent white oil, 20kg toughner SEBS, 10kg polyethylene, 1.0kg Lubricate EBS, 0.15kg antioxidant 1010 and 0.3kg irgasfos 168.
Preparation method is:
(1) the above-mentioned various materials taken mix 10 minutes in high-speed mixer, obtain compound;
(2) compound that step (1) prepares is placed in parallel dual-screw extruding machine melt extrudes, pelletizing.
Wherein, in step (2), parallel dual-screw extruding machine expressing technique condition is: 170 DEG C, a district, 170 DEG C, 2nd district, 170 DEG C, 3rd district, 175 DEG C, 4th district, 175 DEG C, 5th district, 175 DEG C, 6th district, 180 DEG C, 7th district, 180 DEG C, 8th district, 180 DEG C, 9th district, head 180 DEG C, engine speed 450r/min, feeding rotating speed 250r/min, adopts water cooling bracing pelletizing.
Product the present invention obtained has done corresponding Experimental Comparison to several conventional product, and test data is in table 1.
Table 1 material property of the present invention and conventional product material performance test data contrast table
| Test item | Material of the present invention | GM750E | GM1600E | J560-K |
| Yield strength (MPa) | 8.0-10.0 | 23.4 | 26.5 | 29.1 |
| Flexural strength (MPa) | 4.5-6.0 | 20.8 | 22.1 | 24.3 |
| Izod notched impact strength (kJ/m 2)(23℃) | 30-50 | 9.1 | 8.5 | 5.6 |
| Izod notched impact strength (kJ/m 2)(-10℃) | 10-20 | 3.6 | 3.3 | 2.9 |
| Melting means (g/10min) | 40-60 | 7.5 | 16 | 18 |
Claims (7)
1. a medical draw-ring type combination cover enclosing cover polypropylene material, is characterized in that: be made up of the raw material of following parts by weight:
2. medical draw-ring type combination cover enclosing cover polypropylene material according to claim 1, is characterized in that: toughner is SEBS.
3. medical draw-ring type combination cover enclosing cover polypropylene material according to claim 1, is characterized in that: polyethylene is Low Density Polyethylene.
4. medical draw-ring type combination cover enclosing cover polypropylene material according to claim 1, is characterized in that: lubricant is EBS.
5. medical draw-ring type combination cover enclosing cover polypropylene material according to claim 1, is characterized in that: oxidation inhibitor is the composite antioxidant of antioxidant 1010 and irgasfos 168; The mass ratio of antioxidant 1010 and irgasfos 168 is 1:2.
6. a preparation method for the arbitrary described medical draw-ring type combination cover enclosing cover polypropylene material of claim 1-5, is characterized in that: comprise the steps:
(1) by formula ratio, each component is mixed 8 to 10 minutes in high-speed mixer, obtain compound;
(2) compound that step (1) prepares is placed in parallel dual-screw extruding machine melt extrudes, pelletizing.
7. the preparation method of medical draw-ring type combination cover enclosing cover polypropylene material according to claim 6, it is characterized in that: in step (2), parallel dual-screw extruding machine expressing technique condition is: 160 ± 10 DEG C, a district, 160 ± 10 DEG C, 2nd district, 160 ± 10 DEG C, 3rd district, 165 ± 10 DEG C, 4th district, 165 ± 10 DEG C, 5th district, 165 ± 10 DEG C, 6th district, 170 ± 10 DEG C, 7th district, 170 ± 10 DEG C, 8th district, 170 ± 10 DEG C, 9th district, head 170 ± 10 DEG C, engine speed 400 ± 50r/min, feeding rotating speed 200 ± 50r/min, adopts water cooling bracing pelletizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412871.9A CN104945743A (en) | 2015-07-14 | 2015-07-14 | Medical ring-pull type combined cover outer cover polypropylene material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412871.9A CN104945743A (en) | 2015-07-14 | 2015-07-14 | Medical ring-pull type combined cover outer cover polypropylene material and preparation method thereof |
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| CN104945743A true CN104945743A (en) | 2015-09-30 |
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| CN201510412871.9A Pending CN104945743A (en) | 2015-07-14 | 2015-07-14 | Medical ring-pull type combined cover outer cover polypropylene material and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009306A (en) * | 2016-08-01 | 2016-10-12 | 苏州创新达成塑胶模具有限公司 | Medical plastic transfusion tube |
| CN106832586A (en) * | 2017-02-14 | 2017-06-13 | 苏州创扬医药科技股份有限公司 | The material and preparation method of a kind of modified polypropene combination cover |
| CN108578229A (en) * | 2018-02-24 | 2018-09-28 | 浙江济民制药股份有限公司 | Pull folding polypropylene flush cover |
| CN109486027A (en) * | 2018-10-30 | 2019-03-19 | 南京聚隆科技股份有限公司 | One kind can fast ram automotive material and preparation method thereof |
| CN114773734A (en) * | 2022-03-30 | 2022-07-22 | 上海升广科技有限公司 | Cold-resistant high-toughness copolymerized polypropylene plastic and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838808A (en) * | 2012-09-06 | 2012-12-26 | 崇州君健塑胶有限公司 | Accessory for infusion bag, preparation method and application thereof |
| CN104212080A (en) * | 2014-09-24 | 2014-12-17 | 广州市合诚化学有限公司 | Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags |
-
2015
- 2015-07-14 CN CN201510412871.9A patent/CN104945743A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838808A (en) * | 2012-09-06 | 2012-12-26 | 崇州君健塑胶有限公司 | Accessory for infusion bag, preparation method and application thereof |
| CN104212080A (en) * | 2014-09-24 | 2014-12-17 | 广州市合诚化学有限公司 | Self-lubrication composite material used for producing easy-folding outer covers of infusion bottles or bags |
Non-Patent Citations (3)
| Title |
|---|
| 刘永焯等: "充油SEBS改性PP性能研究", 《塑料工业》 * |
| 徐同考: "《塑料改性实用技术》", 31 October 2012 * |
| 许永昌等: "塑料输液容器用聚丙烯组合盖外盖材料增韧研究", 《中 国 塑 料》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009306A (en) * | 2016-08-01 | 2016-10-12 | 苏州创新达成塑胶模具有限公司 | Medical plastic transfusion tube |
| CN106832586A (en) * | 2017-02-14 | 2017-06-13 | 苏州创扬医药科技股份有限公司 | The material and preparation method of a kind of modified polypropene combination cover |
| CN108578229A (en) * | 2018-02-24 | 2018-09-28 | 浙江济民制药股份有限公司 | Pull folding polypropylene flush cover |
| CN109486027A (en) * | 2018-10-30 | 2019-03-19 | 南京聚隆科技股份有限公司 | One kind can fast ram automotive material and preparation method thereof |
| CN114773734A (en) * | 2022-03-30 | 2022-07-22 | 上海升广科技有限公司 | Cold-resistant high-toughness copolymerized polypropylene plastic and preparation method thereof |
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Application publication date: 20150930 |