CN105801956A - Medical infusion tube TPE material and preparing method thereof - Google Patents
Medical infusion tube TPE material and preparing method thereof Download PDFInfo
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- CN105801956A CN105801956A CN201610176915.7A CN201610176915A CN105801956A CN 105801956 A CN105801956 A CN 105801956A CN 201610176915 A CN201610176915 A CN 201610176915A CN 105801956 A CN105801956 A CN 105801956A
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- medical infusion
- tpe material
- infusion lines
- temperature
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/02—Applications for biomedical use
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a medical infusion tube TPE material and a preparing method thereof.A medical infusion tube made of the TPE material can replace the PVC material, is free of anaphylactic reaction, and has high mechanical property and machinability.The medical infusion tube TPE material is prepared from, by weight, 50-70 parts of polyolefin thermoplastic elastomer, 40-60 parts of styrenic thermoplastic elastomer, 20-50 parts of themoplastic polyurethane elastomer, 10-50 parts of polypropylene resin, 0.5-1 part of slipping agent and 0.1-1 part of antioxidant.
Description
Technical field
The invention belongs to field of medical materials, specifically, the present invention relates to the TPE material of medical infusion lines.
Background technology
What the material of traditional medical Transfusion device flexible pipe was commonly used is PVC (polrvinyl chloride) material, but, service condition both domestic and external and research data show: health and environment are existed infringement by Corvic and additive DE HP thereof.
1987, vinyl chloride was defined as human carcinogen by IARC.No matter it is when Corvic synthesizes, still adds man-hour, always more or less produce vinyl chloride.Research finds: Long Term Contact Vinyl Chloride Monomer can cause the symptoms such as neurasthenia, chloracne and Raynand's disease, is referred to as vinyl chloride disease.
Research shows: the multiple organ of humans and animals is had generation toxic and side effects by plasticised vinyl chloride resin DEHP, more worrying, and DEHP hydrolysis can generate phthalic acid list ethyl hexyl ester (MEHP), and its toxic and side effects is significantly larger than DEHP.
Calendar year 2001, the polrvinyl chloride of DEHP plasticising is classified as the material of carcinogenesis by IARC, should not as medical material.
Summary of the invention
The technical problem to be solved is in that for above-mentioned deficiency of the prior art, a kind of medical infusion lines TPE material and preparation method thereof is provided, adopt medical infusion lines prepared by this TPE material can substitute PVC material, without anaphylaxis, there is good mechanical performance and processing characteristics.
In order to achieve the above object, medical infusion lines TPE material disclosed by the invention is achieved by the following technical solutions:
Medical infusion lines TPE material, it is characterised in that comprise the raw material of following weight proportioning:
Further: described antioxidant is antioxidant 1010 and irgasfos 168 forms by equal proportion is composite.
Further: described acrylic resin is atactic copolymerized polypropene, melt flow rate (MFR) is 5～15g/min；Described slipping agent is nanometer grade silica powder or tetramethylolmethane stearate.
Further: the melt flow rate (MFR) of described atactic copolymerized polypropene is 8g/min；The particle diameter of described nanometer grade silica powder is 15～20nm, and specific surface area is 300～400m2/g.
Further: described styrene analog thermoplastic elastomer is styrene block copolymer；Described styrene block copolymer includes at least one in SBS, SIS and SEBS triblock copolymer.
Further: the number-average molecular weight of described styrene block copolymer is 100,000～250,000.
The preparation method that the invention also discloses above-mentioned medical infusion lines TPE material, it comprises the steps of:
(1) dispensing；Recipe configuration raw material according to above-mentioned medical infusion lines TPE material；Adopt low speed Horizontal stirring bucket stirring at low speed mix homogeneously；
(2) extrusion；The compound that step (1) obtains is sequentially sent to double screw extruder and single screw extrusion machine, extrusion molding；
(3) pelletizing；The material of step (2) extrusion molding is sent into pelleter pelletizing；
(4) cooling；Material after step (3) pelletizing being completed cools down；
(5) dehydration；Centrifugal dehydrator dehydration sent into by material after step (4) being cooled down；
(6) packaging；Material after step (5) dehydration is packed, obtains final products.
Further: between described step (5) and step (6), also comprise the step of dry step and screening；Described dry step is: have the dry agitator inner drying of temperature incubation function；The step of described screening is: filter out satisfactory product on the vibrating.
Further: in described step (2), the rotating speed of dual-screw-stem machine is 30～50 revs/min, feeding section temperature is 160 DEG C～170 DEG C, compression section temperature is 170 DEG C～180 DEG C, metering section temperature is 180 DEG C～190 DEG C, machine neck temperature is 190 DEG C～200 DEG C, die temperature 190 DEG C～200 DEG C；Single screw extrusion machine die head district temperature is 160～230 DEG C, and the temperature in screw rod district is 160～230 DEG C.
The medicine have the advantages that
Medical infusion lines TPE material disclosed by the invention and preparation method thereof, its formula comprises polyolefins thermoplastic elastomer, styrene analog thermoplastic elastomer, polyurethane-type thermoplastic elastomer, acrylic resin；These primary raw materials make whole material possess excellent physical and mechanical properties and processing characteristics, it is possible to substitute the existing PVC material for preparing medical catheter, it is to avoid PVC material brings harm；Inventive formulation makes stable performance also by slipping agent, antioxidant, excellent；Elongation at break can be provided, there is good transparency.
Preparation method disclosed by the invention, can not only obtain the medical infusion lines TPE material possessing above-mentioned premium properties, twin screw also by preparation method itself is combined complementary expressing technique with single screw rod advantage, disperseed with shearing by twin screw forced conveyance, efficiently plasticizing are mixing, back pressure without head refluxes, it is to avoid high shear is overheated；Single screw rod high pressure extrusion; but low speed low sheraing; avoid overheated contradiction equally; the agitator dispensing using low speed is adopted when dispensing; phase higher speed bucket stirs evenly; it is not likely to produce frictional heat; simultaneously; the particle temperature that raw material is produced after pelleter is higher; reducing temperature through cooling system, though the material grain dehydration function by centrifugation through water-cooled filters major part moisture content, but also residual can there be a small amount of moisture content on material grain surface; drying product again through the agitator with temperature incubation function, the every physical property of product that thus can make same batch is more aligned.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described, and following embodiment is illustrative, is not determinate, it is impossible to limits protection scope of the present invention with following embodiment.
Embodiment 1:
Medical infusion lines TPE material, comprises the raw material of following weight proportioning:
Its preparation method is:
(1) dispensing；Recipe configuration raw material according to above-mentioned medical infusion lines TPE material；Adopt low speed Horizontal stirring bucket stirring at low speed mix homogeneously；(2) extrusion；The compound that step (1) obtains is sequentially sent to double screw extruder and single screw extrusion machine, extrusion molding；(3) pelletizing；The material of step (2) extrusion molding is sent into pelleter pelletizing；(4) cooling；Material after step (3) pelletizing being completed cools down；(5) dehydration；Centrifugal dehydrator dehydration sent into by material after step (4) being cooled down；(6) packaging；Material after step (5) dehydration is packed, obtains final products.
In described step (2), the rotating speed of dual-screw-stem machine is 30/ point, and feeding section temperature is 160 DEG C, and compression section temperature is 170 DEG C, and metering section temperature is 180 DEG C, and machine neck temperature is 190 DEG C, die temperature 190 DEG C；Single screw extrusion machine die head district temperature is 160, and the temperature in screw rod district is 160 DEG C.
Embodiment 2:
Medical infusion lines TPE material, comprises the raw material of following weight proportioning:
Its preparation method is:
(1) dispensing；Recipe configuration raw material according to above-mentioned medical infusion lines TPE material；Adopt low speed Horizontal stirring bucket stirring at low speed mix homogeneously；(2) extrusion；The compound that step (1) obtains is sequentially sent to double screw extruder and single screw extrusion machine, extrusion molding；(3) pelletizing；The material of step (2) extrusion molding is sent into pelleter pelletizing；(4) cooling；Material after step (3) pelletizing being completed cools down；(5) dehydration；Centrifugal dehydrator dehydration sent into by material after step (4) being cooled down；(6) packaging；Material after step (5) dehydration is packed, obtains final products.
In described step (2), the rotating speed of dual-screw-stem machine is 40 revs/min, and feeding section temperature is 165 DEG C, and compression section temperature is 175 DEG C, and metering section temperature is 185 DEG C, and machine neck temperature is 195 DEG C, die temperature 195 DEG C；Single screw extrusion machine die head district temperature is 200 DEG C, and the temperature in screw rod district is 200 DEG C.
Embodiment 3:
Medical infusion lines TPE material, comprises the raw material of following weight proportioning:
Its preparation method is:
(1) dispensing；Recipe configuration raw material according to above-mentioned medical infusion lines TPE material；Adopt low speed Horizontal stirring bucket stirring at low speed mix homogeneously；(2) extrusion；The compound that step (1) obtains is sequentially sent to double screw extruder and single screw extrusion machine, extrusion molding；(3) pelletizing；The material of step (2) extrusion molding is sent into pelleter pelletizing；(4) cooling；Material after step (3) pelletizing being completed cools down；(5) dehydration；Centrifugal dehydrator dehydration sent into by material after step (4) being cooled down；(6) packaging；Material after step (5) dehydration is packed, obtains final products.
In described step (2), the rotating speed of dual-screw-stem machine is 50 revs/min, and feeding section temperature is 170 DEG C, and compression section temperature is 180 DEG C, and metering section temperature is 190 DEG C, and machine neck temperature is 200 DEG C, die temperature 200 DEG C；Single screw extrusion machine die head district temperature is 230 DEG C, and the temperature in screw rod district is 230 DEG C.
The specific performance index of above three embodiment is as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Shore hardness (shoreA) | 69 | 71 | 72 |
| Hot strength (MPa) | 15.5 | 15.3 | 15.1 |
| MFR(g/10min) | 8.0 | 7.8 | 7.6 |
| Elongation at break | 1021 | 1011 | 895 |
| Light transmittance % | 93% | 93% | 93% |
| Non-volatile matter (mg) | 1.0 | 1.3 | 1.2 |
| Cytotoxicity | 1 grade | 1 grade | 1 grade |
| Intradermal stimulates | Irritant reaction without Intradermal | Irritant reaction without Intradermal | Irritant reaction without Intradermal |
| Allergy | React without sensitization of skin | React without sensitization of skin | React without sensitization of skin |
The performance of above three embodiment is more or less the same, and hardness is little, and melt index (MFR) is little, can be used for extrusion molding, is suitable for producing all kinds of transfusion catheters.
In some preferred embodiments, described antioxidant is antioxidant 1010 and irgasfos 168 forms by equal proportion is composite.
In some preferred embodiments, described acrylic resin is atactic copolymerized polypropene, and melt flow rate (MFR) is 5～15g/min；Described slipping agent is nanometer grade silica powder or tetramethylolmethane stearate.
In some preferred embodiments, the melt flow rate (MFR) of described atactic copolymerized polypropene is 8g/min；The particle diameter of described nanometer grade silica powder is 15～20nm, and specific surface area is 300～400m2/g.
In some preferred embodiments, described styrene analog thermoplastic elastomer is styrene block copolymer；Described styrene block copolymer includes at least one in SBS, SIS and SEBS triblock copolymer.
In some preferred embodiments, the number-average molecular weight of described styrene block copolymer is 100,000～250,000.
Above the preferred embodiment for the present invention is explained in detail; but the invention is not restricted to above-mentioned embodiment; in the ken that those of ordinary skill in the art possess; can also make a variety of changes under the premise without departing from present inventive concept; these changes relate to correlation technique well-known to those skilled in the art, and these both fall within the protection domain of patent of the present invention.
Many other can be made without departing from the spirit and scope of the present invention to change and remodeling.Should be appreciated that and the invention is not restricted to specific embodiment, the scope of the invention limits.
Claims (9)
1. medical infusion lines TPE material, it is characterised in that comprise the raw material of following weight proportioning:
2. medical infusion lines TPE material as claimed in claim 1, it is characterised in that described antioxidant is antioxidant 1010 and irgasfos 168 forms by equal proportion is composite.
3. medical infusion lines TPE material as claimed in claim 1, it is characterised in that described acrylic resin is atactic copolymerized polypropene, and melt flow rate (MFR) is 5～15g/min；Described slipping agent is nanometer grade silica powder or tetramethylolmethane stearate.
4. medical infusion lines TPE material as claimed in claim 3, it is characterised in that the melt flow rate (MFR) of described atactic copolymerized polypropene is 8g/min；The particle diameter of described nanometer grade silica powder is 15～20nm, and specific surface area is 300～400m2/g.
5. medical infusion lines TPE material as claimed in claim 1, it is characterised in that described styrene analog thermoplastic elastomer is styrene block copolymer；Described styrene block copolymer includes at least one in SBS, SIS and SEBS triblock copolymer.
6. medical infusion lines TPE material as claimed in claim 5, it is characterised in that the number-average molecular weight of described styrene block copolymer is 100,000～250,000.
7. the preparation method of medical infusion lines TPE material, it is characterised in that comprise the steps of:
(1) dispensing；Recipe configuration raw material according to the medical infusion lines TPE material as described in as arbitrary in claim 1～6；Adopt low speed Horizontal stirring bucket stirring at low speed mix homogeneously；
(2) extrusion；The compound that step (1) obtains is sequentially sent to double screw extruder and single screw extrusion machine, extrusion molding；
(3) pelletizing；The material of step (2) extrusion molding is sent into pelleter pelletizing；
(4) cooling；Material after step (3) pelletizing being completed cools down；
(5) dehydration；Centrifugal dehydrator dehydration sent into by material after step (4) being cooled down；
(6) packaging；Material after step (5) dehydration is packed, obtains final products.
8. the preparation method of medical infusion lines TPE material as claimed in claim 7, it is characterised in that also comprise the step of dry step and screening between described step (5) and step (6)；Described dry step is: have the dry agitator inner drying of temperature incubation function；The step of described screening is: filter out satisfactory product on the vibrating.
9. the preparation method of medical infusion lines TPE material as claimed in claim 7, it is characterized in that, in described step (2), the rotating speed of dual-screw-stem machine is 30～50 revs/min, feeding section temperature is 160 DEG C～170 DEG C, and compression section temperature is 170 DEG C～180 DEG C, and metering section temperature is 180 DEG C～190 DEG C, machine neck temperature is 190 DEG C～200 DEG C, die temperature 190 DEG C～200 DEG C；Single screw extrusion machine die head district temperature is 160～230 DEG C, and the temperature in screw rod district is 160～230 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610176915.7A CN105801956A (en) | 2016-03-24 | 2016-03-24 | Medical infusion tube TPE material and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610176915.7A CN105801956A (en) | 2016-03-24 | 2016-03-24 | Medical infusion tube TPE material and preparing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036132A1 (en) * | 2016-08-24 | 2018-03-01 | 南通普力马弹性体技术有限公司 | Solvent-bonding twisting-resistant transparent transfusion tube material |
| CN107987455A (en) * | 2017-12-15 | 2018-05-04 | 常州恒方大高分子材料科技有限公司 | A kind of transparent SEBS materials of high performance-price ratio medical soft and preparation method thereof |
| CN108003547A (en) * | 2017-12-15 | 2018-05-08 | 常州恒方大高分子材料科技有限公司 | Medical TPE sealing materials of heat resistant type and preparation method thereof |
| CN108102406A (en) * | 2017-12-15 | 2018-06-01 | 深圳恒方大高分子材料科技有限公司 | It is a kind of can the absorption of anti-bubble TPE infusion tube materials and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018036132A1 (en) * | 2016-08-24 | 2018-03-01 | 南通普力马弹性体技术有限公司 | Solvent-bonding twisting-resistant transparent transfusion tube material |
| CN107987455A (en) * | 2017-12-15 | 2018-05-04 | 常州恒方大高分子材料科技有限公司 | A kind of transparent SEBS materials of high performance-price ratio medical soft and preparation method thereof |
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| CN108102406A (en) * | 2017-12-15 | 2018-06-01 | 深圳恒方大高分子材料科技有限公司 | It is a kind of can the absorption of anti-bubble TPE infusion tube materials and preparation method thereof |
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Application publication date: 20160727 |