CN105837970A - Preparation method for polyvinyl chloride material used for trachea cannula - Google Patents
Preparation method for polyvinyl chloride material used for trachea cannula Download PDFInfo
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- CN105837970A CN105837970A CN201610202025.9A CN201610202025A CN105837970A CN 105837970 A CN105837970 A CN 105837970A CN 201610202025 A CN201610202025 A CN 201610202025A CN 105837970 A CN105837970 A CN 105837970A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a preparation method for a polyvinyl chloride material used for a trachea cannula. The preparation method comprises the following steps: adding polyvinyl chloride, phenolic resin, polyoxypropylene glycerin ether, ethylene-propylene copolymer, dicapryl phthalate, acetyl citrate, zinc oxide, pine tar, light calcium carbonate, methyltin mercaptide, cyclohexane-1,2-dimethyl anhydride, epoxidized soybean oil and a plasticizer into a mixer for stirring and mixing; heating the obtained mixture to 90 to 100 DEG C under a nitrogen protection condition, then maintaining the temperature for 20 to 30 min, then cooling the mixture to 15 to 20 DEG C at a rate of 20 DEG C/min and maintaining the temperature for 10 to 15 min so as to obtain prefabricated powder; extruding the prefabricated powder in a double-screw extruder. The polyvinyl chloride material has tensile strength of 23.95 MPa, elongation at break of 228%, Shore hardness A of 40.3, stability time at 180 DEG C of 49 min, and good mechanical properties, transparency, cold resistance and stability.
Description
Technical field
The invention belongs to biology medical material technical field, be specifically related to the preparation side of a kind of tracheal intubation pvc material
Method.
Background technology
Tracheal intubation is one critically important in medical material, and application is extremely extensive, and just makes the main material of these conduits
It it is medical grade pvc material.
Polrvinyl chloride (PVC) be Vinyl Chloride Monomer under the effect of the initiator such as peroxide, azo-compound through radical polymerization
Close the polymer of reaction.The performance of polyvinyl chloride resin excellence makes it be widely used in infant food and consumptive material packaging, medical treatment
The field such as equipment, toy for children.In all macromolecular materials being applied to medical apparatus and instruments or medical article, PVC occupies
The market share of nearly 2/5.And due to its preferable biocompatibility, excellent biologically inert, antibacterial ability and height
Transparent and good mechanical property, adds that its cheap cost, Corvic material just can occupy medical material market
The biggest market share.But, the vitrification point of pure polyvinyl chloride resin is higher, even more than 80 DEG C so that at normal temperatures
Material, still in rigid state, which limit the application of polyvinyl chloride resin.
Polyvinyl chloride resin is due to its preferable biocompatibility, and excellent biologically inert, antibacterial ability and cheap cost are medical
It is widely used in product.Yet with the fault of construction of polyvinyl chloride resin, the chlorine atom in its molecular structure is easily subject to external condition
Impact, under the conditions of high temperature and illumination be inferior, easily remove HCl molecule, thus define double bond structure, and remove
HCl molecule can be catalyzed the thermal decomposition effect of PVC in turn, aggravation forms double bond structure, and the existence of double bond structure, leads
Cause the problems such as the hydraulic performance decline of material, variable color.Polrvinyl chloride molecule the most above-mentioned is deposited due to the chlorine atom of high level
So that it has certain polarity, and molecular structure presents rigid state at normal temperatures, is difficult to activity, thus shows crisp
Firmly, the feature of poor toughness.The application of polrvinyl chloride of these drawbacks limit.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide the preparation side of a kind of tracheal intubation pvc material
Method, gained tracheal intubation pvc material has good mechanical property, the transparency, tolerance to cold and stability.
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 30～50 parts, phenolic resin 3～6 parts, polypropylene glycerol aether 1～
5 parts, ethylene-propylene copolymer 2～5 parts, dioctyl phthalate 2～6 parts, acetyl citrate 3～7 parts, oxidation
Zinc 1～3 parts, pine tar 2～6 parts, precipitated calcium carbonate 3～7 parts, thiol methyl tin 2～5 parts, hexamethylene-1,2-bis-
Formic anhydride 0.8～2.5 parts, epoxy soybean oil 1～4 parts, plasticizer 3～6 parts, add to stirring mixing in mixing and blending machine,
Obtain mixture；
Step 2, is heated to 90～100 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 20～30min,
It is cooled to-15～-20 DEG C with the speed of 20 DEG C/min again, is incubated 10～15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrude Fen Sige district, the temperature in the firstth district be 160～
165 DEG C, second district's temperature is 185～190 DEG C, and the temperature in the 3rd district is 200～210 DEG C, and the 4th district's temperature is 190～200
℃。
Further, the mean molecule quantity of described polrvinyl chloride is 5000～7000.
Further, the mean molecule quantity of described polypropylene glycerol aether is 3000～5000.
Further, the mean molecule quantity of described ethylene-propylene copolymer is 10000～20000.
Further, described plasticizer is adipic acid monomethyl ester, monoethyl adipatee, sebacic acid monomethyl ester, adipic acid diformazan
One in ester, dibutyl adipate or ethyl glutarate.
Further, step 1 also needs to add fatty acid ammonium 4～8 parts.
The tracheal intubation pvc material hot strength of the present invention 23.95MPa, elongation at break be 228%, shore hard
Degree A is that 40.3,180 DEG C of stability reach 49min, has good mechanical property, the transparency, tolerance to cold and stability.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 30 parts, 3 parts of phenolic resin, polypropylene glycerol aether 1 part, ethylene-
Propylene copolymer 2 parts, dioctyl phthalate 2 parts, acetyl citrate 3 parts, zinc oxide 1 part, pine tar 2 parts,
Precipitated calcium carbonate 3 parts, thiol methyl tin 2 parts, hexamethylene-1,2-dicarboxylic acid anhydride 0.8 part, epoxy soybean oil 1 part, increasing
Mould agent 3 parts, add to stirring mixing in mixing and blending machine, obtain mixture；
Step 2, is heated to 90 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 30 minutes, then with 20
DEG C/speed of min is cooled to-15 DEG C, it is incubated 15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 160 DEG C,
Second district's temperature is 185 DEG C, and the temperature in the 3rd district is 200 DEG C, and the 4th district's temperature is 190 DEG C.
Wherein, the mean molecule quantity of polrvinyl chloride 5000, the mean molecule quantity of polypropylene glycerol aether 3000, ethylene-
The mean molecule quantity of propylene copolymer is 10000, and plasticizer is adipic acid monomethyl ester.
Embodiment 2
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 34 parts, 4 parts of phenolic resin, polypropylene glycerol aether 3 parts, ethylene-
Propylene copolymer 4 parts, dioctyl phthalate 3 parts, acetyl citrate 6 parts, zinc oxide 12 parts, pine tar 5 parts,
Precipitated calcium carbonate 6 parts, thiol methyl tin 5 parts, hexamethylene-1,2-dicarboxylic acid anhydride 1.4 parts, epoxy soybean oil 3 parts, increasing
Mould agent 4 parts, add to stirring mixing in mixing and blending machine, obtain mixture；
Step 2, is heated to 95 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 25min, then with 20 DEG C/min
Speed be cooled to-18 DEG C, be incubated 13min, obtain pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 160 DEG C,
Second district's temperature is 185 DEG C, and the temperature in the 3rd district is 200 DEG C, and the 4th district's temperature is 190 DEG C.
Wherein, the mean molecule quantity of polrvinyl chloride 7000, the mean molecule quantity of polypropylene glycerol aether 5000, ethylene-
The mean molecule quantity of propylene copolymer is 20000, and plasticizer is dibutyl adipate.
Embodiment 3
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 45 parts, 5 parts of phenolic resin, polypropylene glycerol aether 3 parts, ethylene-
Propylene copolymer 3 parts, dioctyl phthalate 4 parts, acetyl citrate 6 parts, zinc oxide 3 parts, pine tar 4 parts,
Precipitated calcium carbonate 5 parts, thiol methyl tin 4 parts, hexamethylene-1,2-dicarboxylic acid anhydride 2 parts, epoxy soybean oil 3 parts, plasticising
Agent 5 parts, adds to stirring mixing in mixing and blending machine, obtains mixture；
Step 2, is heated to 100 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 20min, then with 20 DEG C
The speed of/min is cooled to-20 DEG C, is incubated 15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 165 DEG C,
Second district's temperature is 190 DEG C, and the temperature in the 3rd district is 200 DEG C, and the 4th district's temperature is 200 DEG C.
Wherein, the mean molecule quantity of polrvinyl chloride 5000, the mean molecule quantity of polypropylene glycerol aether 3000, ethylene-
The mean molecule quantity of propylene copolymer is 10000, and plasticizer is ethyl glutarate.
Embodiment 4
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 50 parts, 6 parts of phenolic resin, polypropylene glycerol aether 5 parts, ethylene-
Propylene copolymer 5 parts, dioctyl phthalate 6 parts, acetyl citrate 7 parts, zinc oxide 3 parts, pine tar 6 parts,
Precipitated calcium carbonate 7 parts, thiol methyl tin 5 parts, hexamethylene-1,2-dicarboxylic acid anhydride 2.5 parts, epoxy soybean oil 4 parts, increasing
Mould agent 6 parts, add to stirring mixing in mixing and blending machine, obtain mixture；
Step 2, is heated to 90 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 30 minutes, then with 20
DEG C/speed of min is cooled to-15 DEG C, it is incubated 15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 160 DEG C,
Second district's temperature is 185 DEG C, and the temperature in the 3rd district is 200 DEG C, and the 4th district's temperature is 190 DEG C.
Wherein, the mean molecule quantity of polrvinyl chloride 5000, the mean molecule quantity of polypropylene glycerol aether 3000, ethylene-
The mean molecule quantity of propylene copolymer is 10000, and plasticizer is adipic acid monomethyl ester.
Embodiment 5
The present embodiment is with the difference of embodiment 3: also need in step 1 add fatty acid ammonium 4～8 parts.
The preparation method of a kind of tracheal intubation pvc material, comprises the following steps:
Step 1, in parts by weight, take polrvinyl chloride 45 parts, 5 parts of phenolic resin, polypropylene glycerol aether 3 parts, ethylene-
Propylene copolymer 3 parts, dioctyl phthalate 4 parts, acetyl citrate 6 parts, zinc oxide 3 parts, pine tar 4 parts,
Precipitated calcium carbonate 5 parts, thiol methyl tin 4 parts, hexamethylene-1,2-dicarboxylic acid anhydride 2 parts, epoxy soybean oil 3 parts, plasticising
Agent 5 parts, fatty acid ammonium 8 parts, add to stirring mixing in mixing and blending machine, obtain mixture；
Step 2, is heated to 100 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 20min, then with 20 DEG C
The speed of/min is cooled to-20 DEG C, is incubated 15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 165 DEG C,
Second district's temperature is 190 DEG C, and the temperature in the 3rd district is 200 DEG C, and the 4th district's temperature is 200 DEG C.
Wherein, the mean molecule quantity of polrvinyl chloride 5000, the mean molecule quantity of polypropylene glycerol aether 3000, ethylene-
The mean molecule quantity of propylene copolymer is 10000, and plasticizer is ethyl glutarate.
With reference to GB/T15593-1995, GB/T2917.1-2002, GB/T14233.1-2008 to embodiment 1 to 5 gained material
Material carries out performance test, and result is as follows:
As seen from the above table, the tracheal intubation pvc material hot strength of the present invention at 23.95MPa, elongation at break is
228%, shore hardness A is that 40.3,180 DEG C of stability reach 49min, has good mechanical property, stability.From enforcement
Example 5 is it can be seen that the addition of fatty acid ammonium can strengthen resulting materials mechanical property and stability, and this is possibly due to fat
Acid ammonium can be inserted between strand, with polymer molecule chain formation secondary key, the distance between macromolecular chain, reduces poly-
Active force between adduct molecule, makes the mobility of macromolecular chain add, thus reduces skilful body viscosity, adds the soft of strand
The pliable plasticity with material.
Embodiment resulting materials is carried out stripping quantity detection and toxicity inspection, uses, with simulated body fluid under simulation clinical condition
As extraction medium, acquired results meets product standard, reaches to apply requirement.
Claims (6)
1. the preparation method of a tracheal intubation pvc material, it is characterised in that: comprise the following steps:
Step 1, in parts by weight, take polrvinyl chloride 30～50 parts, phenolic resin 3～6 parts, polypropylene glycerol aether 1～5 parts, ethylene-propylene copolymer 2～5 parts, dioctyl phthalate 2～6 parts, acetyl citrate 3～7 parts, zinc oxide 1～3 parts, pine tar 2～6 parts, precipitated calcium carbonate 3～7 parts, thiol methyl tin 2～5 parts, hexamethylene-1,2-dicarboxylic acid anhydride 0.8～2.5 parts, epoxy soybean oil 1～4 parts, plasticizer 3～6 parts, add to stirring mixing in mixing and blending machine, obtain mixture；
Step 2, is heated to 90～100 DEG C by step 1 gained mixture under nitrogen protective condition, is incubated 20～30min, then is cooled to-15～-20 DEG C with the speed of 20 DEG C/min, is incubated 10～15min, obtains pre-powder process；
Step 3, extrudes pre-powder process in double screw extruder, extrudes Fen Sige district, and the temperature in the firstth district is 160～165 DEG C, and second district's temperature is 185～190 DEG C, and the temperature in the 3rd district is 200～210 DEG C, and the 4th district's temperature is 190～200 DEG C.
The preparation method of tracheal intubation pvc material the most according to claim 1, it is characterised in that: the mean molecule quantity of described polrvinyl chloride is 5000～7000.
The preparation method of tracheal intubation pvc material the most according to claim 1, it is characterised in that: the mean molecule quantity of described polypropylene glycerol aether is 3000～5000.
The preparation method of tracheal intubation pvc material the most according to claim 1, it is characterised in that: the mean molecule quantity of described ethylene-propylene copolymer is 10000～20000.
The preparation method of tracheal intubation pvc material the most according to claim 1, it is characterised in that: described plasticizer is the one in adipic acid monomethyl ester, monoethyl adipatee, sebacic acid monomethyl ester, dimethyl adipate, dibutyl adipate or ethyl glutarate.
The preparation method of tracheal intubation pvc material the most according to claim 1, it is characterised in that: step 1 also needs to add fatty acid ammonium 4～8 parts.
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| CN201610202025.9A CN105837970B (en) | 2016-03-31 | 2016-03-31 | A kind of preparation method of trachea cannula pvc material |
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| CN201610202025.9A CN105837970B (en) | 2016-03-31 | 2016-03-31 | A kind of preparation method of trachea cannula pvc material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633480A (en) * | 2016-10-17 | 2017-05-10 | 美轲（淮安）化学有限公司 | Waterborne PVC (polyvinyl chloride) composite heat stabilizer and preparation method thereof |
| CN111825928A (en) * | 2019-04-20 | 2020-10-27 | 天津庚辰辛亥科技有限责任公司 | High-strength corrosion-resistant plastic pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612340A (en) * | 1983-03-09 | 1986-09-16 | Yoshinori Ohachi | Medical device |
| CN102321317A (en) * | 2011-08-25 | 2012-01-18 | 上海恒方大高分子材料科技有限公司 | High-transparent medical PVC pellet and preparation method thereof |
| CN102875936A (en) * | 2012-10-29 | 2013-01-16 | 成都市新津事丰医疗器械有限公司 | DEHP (di-2-ethylhexyl phthalate)-free medical PVC (polyvinyl chloride) paste material |
| CN105017680A (en) * | 2015-06-30 | 2015-11-04 | 苏州乔纳森新材料科技有限公司 | Preparation method of polyvinyl chloride material used for medical trachea cannulas |
-
2016
- 2016-03-31 CN CN201610202025.9A patent/CN105837970B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612340A (en) * | 1983-03-09 | 1986-09-16 | Yoshinori Ohachi | Medical device |
| CN102321317A (en) * | 2011-08-25 | 2012-01-18 | 上海恒方大高分子材料科技有限公司 | High-transparent medical PVC pellet and preparation method thereof |
| CN102875936A (en) * | 2012-10-29 | 2013-01-16 | 成都市新津事丰医疗器械有限公司 | DEHP (di-2-ethylhexyl phthalate)-free medical PVC (polyvinyl chloride) paste material |
| CN105017680A (en) * | 2015-06-30 | 2015-11-04 | 苏州乔纳森新材料科技有限公司 | Preparation method of polyvinyl chloride material used for medical trachea cannulas |
Non-Patent Citations (5)
| Title |
|---|
| 唐颂超 等: "《高分子材料成型加工（第三版）》", 31 May 2013, 中国轻工业出版社 * |
| 朱洪法: "《精细化工常用原料手册》", 31 December 2003, 金盾出版社 * |
| 梁定澎: "《塑胶添加剂》", 1 May 1985, 复汉出版社 * |
| 茨魏费尔: "《塑料添加剂手册，第五版》", 31 March 2005, 化学工业出版社 * |
| 鲍米克 等: "《弹性体手册（第二版）》", 31 January 2005, 中国石化出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633480A (en) * | 2016-10-17 | 2017-05-10 | 美轲（淮安）化学有限公司 | Waterborne PVC (polyvinyl chloride) composite heat stabilizer and preparation method thereof |
| CN106633480B (en) * | 2016-10-17 | 2019-04-30 | 美轲（淮安）化学有限公司 | Aqueous PVC composite heat stabilizer and preparation method thereof |
| CN111825928A (en) * | 2019-04-20 | 2020-10-27 | 天津庚辰辛亥科技有限责任公司 | High-strength corrosion-resistant plastic pipe |
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| CN105837970B (en) | 2018-06-15 |
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