CN104877267A - Method for preparing medical plastic resistant to heat and aging - Google Patents
Method for preparing medical plastic resistant to heat and aging Download PDFInfo
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- CN104877267A CN104877267A CN201510262685.1A CN201510262685A CN104877267A CN 104877267 A CN104877267 A CN 104877267A CN 201510262685 A CN201510262685 A CN 201510262685A CN 104877267 A CN104877267 A CN 104877267A
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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
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a method for preparing medical plastic resistant to heat and aging. The method comprises the following steps: I, weighing components according to the weight ratio; II, putting some of the components into a reaction still, heating and stirring; III, adding the remaining raw materials, mixing and stirring; IV, vacuum-drying the mixed materials to obtain dried materials, then smashing the dried materials using a pulverizer, and discharging the smashed material; V, extruding the smashed material using a twin-screw extruder to obtain the medical plastic resistant to heat and aging. The plastic prepared using the method provided by the invention is good in physical properties, wherein the elongation reaches 3.4%, the tensile strength reaches 158 MPa or above, the heat distortion temperature reaches 131 DEG C or above, the anti-aging property can remain normal for 1000 hours or longer, the notch impact strength reaches 30 KJ/m<2> or above, the melt index reaches 12 g/10min, and all the properties are excellent.
Description
Technical field
The invention belongs to medical field of new, relate to a kind of preparation method of medical heat-resisting ageing-resisting plastics.
Technical background
Medical macromolecular materials are the polymer materialss manufacturing human body viscera, vitro in organ, pharmaceutical dosage form and medicine equipment.Over 20 years, the macromolecular material for this respect has polyvinyl chloride, natural rubber, polyethylene, polymeric amide, polypropylene, polystyrene, silicon rubber, polyester, tetrafluoroethylene, polymethylmethacrylate and urethane etc.Medical plastic industry is with its high added value, high speedup and have wide market potential and get most of the attention, and by adopting novel plastic material, can make that medicine equipment is safer, more environmental protection.Current most medical plastic is using other polyvinyl chloride of medical grade (PVC) as raw material, PVC is as the existing history for many years of medical material, it has resistance to chemical corrosion, very strong resistibility is had to oxygenant, reductive agent and strong acid, and it is wear-resisting, be easy to production, use safety, with low cost, be thus widely used
Polyvinyl chloride, English abbreviation PVC is the thermoplastic resin be polymerized under initiator effect by vinylchlorid.It is the homopolymer of vinylchlorid.Ryuron and vinyl chloride copolymer system are referred to as vinyl chloride resin.PVC has larger polymolecularity, has good mechanical property, has excellent dielectric properties.But to the poor stability of light and heat, more than 100 DEG C or through long-time exposure in sunshine, will decompose and produce hydrogenchloride, and autocatalytically is decomposed further, cause variable color, physical and mechanical properties also declines rapidly, must add stablizer in actual applications to improve the stability to light and heat.Just in medical field, due to the singularity of environment for use, therefore higher requirement is had for the ageing-resistant of PVC material and resistance to elevated temperatures, and PVC material conventional at present can not reach well ageing-resistant and resistance to elevated temperatures in the environment such as medical ultraviolet and high temperature, in sum, the deficiency solving prior art existence has become this area technical problem urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, the preparation method of the medical heat-resisting ageing-resisting plastics providing a kind of heat-resisting ageing-resisting performance good.
The object of the invention is to be achieved through the following technical solutions: a kind of preparation method of medical heat-resisting ageing-resisting plastics, this preparation method comprises the following steps:
The first step: take PVC 70-80 part, PET 30-40 part, polycarbonate 10-20 part, PBT 5-10 part, EVA 10-20 part, chitosan 2-8 part, glycerol 3-8 part, two maleinamic acid 6-12 part, polybutene 3-17 part, calcium lignin sulphonate 0.8-2 part, mentha camphor 3-8 part, lubricant 2-5 part, oxidation inhibitor 1-2 part, coupling agent 3-5 part according to parts by weight proportioning;
Second step: PVC, PET, polycarbonate, PBT, two maleinamic acid and EVA are dropped in reactor and is heated to 60-80 DEG C, stir 30-50min, stirring velocity 300-500 rev/min;
3rd step: then add surplus stock, be warming up to 100-120 DEG C, mix and blend 40-60min; 4th step: mixture is carried out vacuum-drying, obtains dry material, is then crushed to 40-60 order by dry material by pulverizer, discharging; 5th step: extruded in twin screw extruder by the material after pulverizing, extrude Fen Siqu, first district's temperature is 180-190 DEG C, second district's temperature is 195-200 DEG C, 3rd district's temperature is 200-210 DEG C, and the 4th district's temperature is 205-210 DEG C, obtains medical heat-resisting ageing-resisting plastics.
Described coupling agent is titanate coupling agent.
Described oxidation inhibitor is irgasfos 168.
Described lubricant is n-butyl stearate.
In 3rd step, stirring velocity is 200-600 rev/min.
The present invention has following beneficial effect: the plastics prepared by method of the present invention have good physicals, wherein elongation reaches 3.4%, tensile strength reaches more than 158MPa, flexural strength reaches more than 272MPa, heat-drawn wire reaches more than 131 DEG C, it is without exception that ageing-resistant performance reaches more than 1000 hours performances, and notched Izod impact strength reaches 30KJ/m
2above, melting index reaches 12g/10min, and properties is excellent.This material had both improve the quality of product, also reduced production cost.
Embodiment
embodiment 1
A preparation method for medical heat-resisting ageing-resisting plastics, this preparation method comprises the following steps:
The first step: take PVC 70 parts, PET 30 parts, polycarbonate 10 parts, PBT 5 parts, EVA 10 parts, chitosan 2 parts, glycerol 3 parts, two maleinamic acid 6 parts, polybutene 3 parts, calcium lignin sulphonate 0.8 part, mentha camphor 3 parts, lubricant 2 parts, 1 part, oxidation inhibitor, coupling agent 3 parts according to parts by weight proportioning;
Second step: PVC, PET, polycarbonate, PBT, two maleinamic acid and EVA are dropped in reactor and is heated to 60-80 DEG C, stir 30-50min, stirring velocity 300-500 rev/min;
3rd step: then add surplus stock, be warming up to 100-120 DEG C, mix and blend 40-60min; 4th step: mixture is carried out vacuum-drying, obtains dry material, is then crushed to 40-60 order by dry material by pulverizer, discharging; 5th step: extruded in twin screw extruder by the material after pulverizing, extrude Fen Siqu, first district's temperature is 180-190 DEG C, second district's temperature is 195-200 DEG C, 3rd district's temperature is 200-210 DEG C, and the 4th district's temperature is 205-210 DEG C, obtains medical heat-resisting ageing-resisting plastics.
Described coupling agent is titanate coupling agent.
Described oxidation inhibitor is irgasfos 168.
Described lubricant is n-butyl stearate.
In 3rd step, stirring velocity is 200-600 rev/min.
embodiment 2
A preparation method for medical heat-resisting ageing-resisting plastics, this preparation method comprises the following steps:
The first step: take PVC 80 parts, PET40 part, polycarbonate 20 parts, PBT10 part, EVA 20 parts, chitosan 8 parts, glycerol 8 parts, two maleinamic acid 12 parts, polybutene 17 parts, calcium lignin sulphonate 2 parts, mentha camphor 8 parts, lubricant 5 parts, 2 parts, oxidation inhibitor, coupling agent 5 parts according to parts by weight proportioning;
Second step: PVC, PET, polycarbonate, PBT, two maleinamic acid and EVA are dropped in reactor and is heated to 60-80 DEG C, stir 30-50min, stirring velocity 300-500 rev/min;
3rd step: then add surplus stock, be warming up to 100-120 DEG C, mix and blend 40-60min; 4th step: mixture is carried out vacuum-drying, obtains dry material, is then crushed to 40-60 order by dry material by pulverizer, discharging; 5th step: extruded in twin screw extruder by the material after pulverizing, extrude Fen Siqu, first district's temperature is 180-190 DEG C, second district's temperature is 195-200 DEG C, 3rd district's temperature is 200-210 DEG C, and the 4th district's temperature is 205-210 DEG C, obtains medical heat-resisting ageing-resisting plastics.
Described coupling agent is titanate coupling agent.
Described oxidation inhibitor is irgasfos 168.
Described lubricant is n-butyl stearate.
In 3rd step, stirring velocity is 200-600 rev/min.
embodiment 3
A preparation method for medical heat-resisting ageing-resisting plastics, this preparation method comprises the following steps:
The first step: take PVC 75 parts, PET 35 parts, polycarbonate 15 parts, PBT 8 parts, EVA 15 parts, chitosan 5 parts, glycerol 5 parts, two maleinamic acid 9 parts, polybutene 10 parts, calcium lignin sulphonate 1 part, mentha camphor 5 parts, lubricant 3 parts, 1.5 parts, oxidation inhibitor, coupling agent 4 parts according to parts by weight proportioning;
Second step: PVC, PET, polycarbonate, PBT, two maleinamic acid and EVA are dropped in reactor and is heated to 60-80 DEG C, stir 30-50min, stirring velocity 300-500 rev/min;
3rd step: then add surplus stock, be warming up to 100-120 DEG C, mix and blend 40-60min; 4th step: mixture is carried out vacuum-drying, obtains dry material, is then crushed to 40-60 order by dry material by pulverizer, discharging; 5th step: extruded in twin screw extruder by the material after pulverizing, extrude Fen Siqu, first district's temperature is 180-190 DEG C, second district's temperature is 195-200 DEG C, 3rd district's temperature is 200-210 DEG C, and the 4th district's temperature is 205-210 DEG C, obtains medical heat-resisting ageing-resisting plastics.
Described coupling agent is titanate coupling agent.
Described oxidation inhibitor is irgasfos 168.
Described lubricant is n-butyl stearate.
In 3rd step, stirring velocity is 200-600 rev/min.
Claims (5)
1. a preparation method for medical heat-resisting ageing-resisting plastics, is characterized in that, this preparation method comprises the following steps:
The first step: take PVC 70-80 part, PET 30-40 part, polycarbonate 10-20 part, PBT 5-10 part, EVA 10-20 part, chitosan 2-8 part, glycerol 3-8 part, two maleinamic acid 6-12 part, polybutene 3-17 part, calcium lignin sulphonate 0.8-2 part, mentha camphor 3-8 part, lubricant 2-5 part, oxidation inhibitor 1-2 part, coupling agent 3-5 part according to parts by weight proportioning;
Second step: PVC, PET, polycarbonate, PBT, two maleinamic acid and EVA are dropped in reactor and is heated to 60-80 DEG C, stir 30-50min, stirring velocity 300-500 rev/min;
3rd step: then add surplus stock, be warming up to 100-120 DEG C, mix and blend 40-60min;
4th step: mixture is carried out vacuum-drying, obtains dry material, is then crushed to 40-60 order by dry material by pulverizer, discharging;
5th step: extruded in twin screw extruder by the material after pulverizing, extrude Fen Siqu, first district's temperature is 180-190 DEG C, second district's temperature is 195-200 DEG C, 3rd district's temperature is 200-210 DEG C, and the 4th district's temperature is 205-210 DEG C, obtains medical heat-resisting ageing-resisting plastics.
2. the preparation method of a kind of medical heat-resisting ageing-resisting plastics according to claim 1, is characterized in that: described coupling agent is titanate coupling agent.
3. the preparation method of a kind of medical heat-resisting ageing-resisting plastics according to claim 1, is characterized in that: described oxidation inhibitor is irgasfos 168.
4. the preparation method of a kind of medical heat-resisting ageing-resisting plastics according to claim 1, is characterized in that: described lubricant is n-butyl stearate.
5. the preparation method of a kind of medical heat-resisting ageing-resisting plastics according to claim 1, is characterized in that: in the 3rd step, stirring velocity is 200-600 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262685.1A CN104877267A (en) | 2015-05-22 | 2015-05-22 | Method for preparing medical plastic resistant to heat and aging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262685.1A CN104877267A (en) | 2015-05-22 | 2015-05-22 | Method for preparing medical plastic resistant to heat and aging |
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| Publication Number | Publication Date |
|---|---|
| CN104877267A true CN104877267A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510262685.1A Pending CN104877267A (en) | 2015-05-22 | 2015-05-22 | Method for preparing medical plastic resistant to heat and aging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107446265A (en) * | 2017-08-15 | 2017-12-08 | 安徽华猫软包装有限公司 | A kind of medical heat-resisting composite plastic and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6545096B1 (en) * | 1999-10-08 | 2003-04-08 | Nipro Corporation | Heat-resistant plastic sheet and infusion bag using the same |
| CN104371219A (en) * | 2014-11-07 | 2015-02-25 | 苏州维泰生物技术有限公司 | Medical heat-resistant anti-aging composite plastic and preparation method thereof |
| CN104371214A (en) * | 2014-10-28 | 2015-02-25 | 昆山艾士比高分子科技有限公司 | Antibacterial medical material |
-
2015
- 2015-05-22 CN CN201510262685.1A patent/CN104877267A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6545096B1 (en) * | 1999-10-08 | 2003-04-08 | Nipro Corporation | Heat-resistant plastic sheet and infusion bag using the same |
| CN104371214A (en) * | 2014-10-28 | 2015-02-25 | 昆山艾士比高分子科技有限公司 | Antibacterial medical material |
| CN104371219A (en) * | 2014-11-07 | 2015-02-25 | 苏州维泰生物技术有限公司 | Medical heat-resistant anti-aging composite plastic and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 刘柏贤: "《建筑塑料》", 30 September 2000, 化学工业出版社 * |
| 卓昌明: "《塑料应用技术手册》", 31 May 2013, 机械工业出版社 * |
| 杨东武 等: "《塑料材料选用技术》", 31 January 2008, 中国轻工业出版社 * |
| 陈泽成 等: "《塑料挤出机头典型结构设计及试模调机经验汇编》", 30 April 2014, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107446265A (en) * | 2017-08-15 | 2017-12-08 | 安徽华猫软包装有限公司 | A kind of medical heat-resisting composite plastic and preparation method thereof |
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Application publication date: 20150902 |