CN109796701A - Medical PVC plastics - Google Patents
Medical PVC plastics Download PDFInfo
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- CN109796701A CN109796701A CN201910081335.3A CN201910081335A CN109796701A CN 109796701 A CN109796701 A CN 109796701A CN 201910081335 A CN201910081335 A CN 201910081335A CN 109796701 A CN109796701 A CN 109796701A
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Abstract
The invention discloses a kind of medical PVC plastics, the material including following parts by weight: 60~70 parts by weight of polyvinyl chloride；8~12 parts by weight of propylene acrylic acid hydroxyl ethyl ester copolymer；3~5 parts by weight of stabilizer；6~8 parts by weight of filler；2~4 parts by weight of antibacterial agent；0.5~1 parts by weight of eliminating smell agent.Medical PVC plastics of the invention improve the internal structure of PVC plastic, with excellent intensity, toughness, low smell and anti-microbial property by optimizing to its chemical component in microcosmic degree.
Description
Technical field
The present invention relates to a kind of plastics, more particularly to a kind of medical PVC plastics.
Background technique
Medical macromolecular materials are to manufacture human body viscera, vitro in organ, pharmaceutical dosage form and the polymer of medical instrument
Material.Over 20 years, the high molecular material for this respect has polyvinyl chloride, natural rubber, polyethylene, polyamide, polypropylene, gathers
Styrene, silicon rubber, polyester, polytetrafluoroethylene (PTFE), polymethyl methacrylate and polyurethane etc..Medical plastic industry is attached with its height
Value added, high speedup and possess wide market potential and attract attention, by using novel plastic material, Medical treatment device can be made
Tool is safer, more environmentally friendly.Current most medical plastic is using the other polyvinyl chloride of medical grade (PVC) as raw material, PVC conduct
Medical material has many years history, with resistance to chemical corrosion, has very strong resistance to oxidant, reducing agent and strong acid
Power, and it is wear-resisting, it is readily produced, using safe, low in cost.Have between this kind of material and intravenous fluid and blood good
Compatibility, thus be widely used, such as various flexible pipe for medical purpose, blood storage device, dialysis attachment, surgical glove, medical treatment
Condition and man-made organ etc..PVC not only needs to meet materialogy requirement, also needs to meet following biology as medical material
It is required that: the additives such as used plasticizer, stabilizer are nontoxic, and are not easy to ooze out from PVC material；Good bio-compatible
Property, teratogenesis is not carcinogenic, does not cause allergic reaction；Good blood compatibility, hemolytic are low, anticoagulant property is good.
Antibiotic plastic is a kind of with antibacterial and bactericidal property new material, is usually added in the plastic a kind of or several
It plants specific antibacterial agent and is made.Just because of material itself has been assigned antibiotic property, the various product tools made of antibiotic plastic
There is hygienic self-cleaning function, and the long-term effect of antibiotic plastic can be synchronous with product service life, has not only facilitated but also economical, it is existing
PVC plastic anti-microbial property is bad.
Summary of the invention
In view of the above shortcomings, it is an object of the invention to develop a medical PVC plastics, with excellent strong
Degree, anti-microbial property and low smell.
Technical solution of the present invention is summarized as follows:
A kind of medical PVC plastics, wherein the material including following parts by weight:
Preferably, the medical PVC plastics, wherein the stabilizer includes 60~70wt% zinc laurate and 30
~40wt% calcium stearate.
Preferably, the medical PVC plastics, wherein the filler is silicon carbide or niobium oxide.
Preferably, the medical PVC plastics, wherein the antibacterial agent be 50~60wt% lithium carbonate and 40~
50wt% dihydroxymethyl glycolylurea.
Preferably, the medical PVC plastics, wherein the eliminating smell agent is sodium styrene sulfonate or gluconic acid.
Preferably, the medical PVC plastics, wherein further include the tributyl citrate of 2~4 parts by weight.
Preferably, the medical PVC plastics, wherein further include the octadecadienoic acid of 1~3 parts by weight.
Preferably, the medical PVC plastics, wherein further include the polyethylene wax of 0.5~1 parts by weight.
Preferably, the medical PVC plastics, wherein the number-average molecular weight of the polyvinyl chloride be 52000~
56000g/mol。
Preferably, the medical PVC plastics, wherein the equal molecule of number of the propylene acrylic acid hydroxyl ethyl ester copolymer
Amount is 1800~2000g/mol.
The beneficial effects of the present invention are:
(1) medical PVC plastics of the invention improve PVC plastic in microcosmic degree by optimizing to its chemical component
The internal structure of material, with excellent intensity, toughness, low smell and anti-microbial property.
(2) present invention is using polyvinyl chloride as main body, after propylene acrylic acid hydroxyl ethyl ester copolymer is in conjunction with polyvinyl chloride,
Its ageing resistance and crack resistance at low-temperature can be improved；Its light stability is improved by the way that zinc laurate and calcium stearate is added
And thermal stability；Improve the anti-aging and light stability of PVC plastic by the way that silicon carbide is added；Lithium carbonate and dihydroxymethyl sea
Because cooperateing with as antibacterial agent of the invention, so that fungistatic effect reaches best；Sodium styrene sulfonate inhibits oxidation, with ammonia, mercaptan
Equal smell substances reaction is allowed to become free from extraneous odour material；By the way that tributyl citrate is added as plasticizer, it is soft to increase PVC plastic
Toughness improves the fragility of low temperature and easily embrittlement performance when being hit；Improve PVC plastic by the way that octadecadienoic acid is added
Antioxygenic property；Polyethylene wax can effectively promote the weatherability of PVC plastic at high temperature and crack resistance and profit at low temperature
Slip, polyethylene wax and tributyl citrate can produce synergistic effect.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.
This case proposes a kind of medical PVC plastics, wherein the material including following parts by weight:
Polyvinyl chloride has fire-retardant, chemical resistance high (sulfuric acid that resistance to concentrated hydrochloric acid, concentration are 90%, concentration 60%
Nitric acid and concentration 20% sodium hydroxide), mechanical strength the advantages of, thermal stability of polyvinyl chloride and light resistance are poor；Ethylene-
Butylene copolymer is used to improve the cohesive force and hot pressing viscosity of polyvinyl chloride system, reduces polyvinyl chloride layer surface shrinkage stress,
Increase the shock resistance of PVC pipe.After propylene acrylic acid hydroxyl ethyl ester copolymer is in conjunction with polyvinyl chloride, it is anti-that it can be improved
Aging ability and crack resistance at low-temperature.
As the another embodiment of this case, stabilizer includes 60~70wt% zinc laurate and 30~40wt% calcium stearate.
Its light stability and thermal stability are improved by the way that zinc laurate and calcium stearate is added.
As the another embodiment of this case, filler is silicon carbide or niobium oxide.Improve PVC by the way that silicon carbide or niobium oxide is added
The anti-aging and light stability of plastics.
As the another embodiment of this case, antibacterial agent is 50~60wt% lithium carbonate and 40~50wt% dihydroxymethyl glycolylurea.
Antibacterial agent is that have antibacterial and substance or product of bactericidal property, has killing effect to pathogenic microorganism or inhibits growth,
Lithium carbonate and the collaboration of dihydroxymethyl glycolylurea are as antibacterial agent of the invention, so that fungistatic effect reaches best.
As the another embodiment of this case, eliminating smell agent is sodium styrene sulfonate or gluconic acid.Sodium styrene sulfonate or grape
Saccharic acid inhibits oxidation, reacts with smell substances such as ammonia, mercaptan and is allowed to become free from extraneous odour material.
It further include the tributyl citrate of 2~4 parts by weight as the another embodiment of this case.By the way that three fourth of citric acid is added
Ester increases PVC plastic flexibility as plasticizer, easily embrittlement performance when improving the fragility of low temperature and being hit.
It further include the octadecadienoic acid of 1~3 parts by weight as the another embodiment of this case.By the way that 18 carbon diene are added
Acid improves the antioxygenic property of PVC plastic.
It further include the polyethylene wax of 0.5~1 parts by weight as the another embodiment of this case.Polyethylene wax can effectively promote PVC
The weatherability of plastics at high temperature and crack resistance and lubricity at low temperature, polyethylene wax and tributyl citrate can produce
Synergistic effect.
As the another embodiment of this case, the number-average molecular weight of polyvinyl chloride is 52000~56000g/mol.Polyvinyl chloride
Number-average molecular weight can influence its mechanical strength, and therefore, the number-average molecular weight of polyvinyl chloride should be restricted.
As the another embodiment of this case, the number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer is 1800~2000g/
mol.The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer can influence its ageing resistance and crack resistance at low-temperature, because
This, the number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer should be restricted.
The specific embodiment and comparative example being listed below:
Embodiment 1:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 52000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 1800g/mol.
Embodiment 2:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 55000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 1900g/mol.
Embodiment 3:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 56000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 2000g/mol.
Comparative example 1:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 52000g/mol.
Comparative example 2:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 52000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 1800g/mol.
Comparative example 3:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 55000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 1900g/mol.
Comparative example 4:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 55000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 1900g/mol.
Comparative example 5:
A kind of medical PVC plastics, the material including following parts by weight:
The number-average molecular weight of polyvinyl chloride is 56000g/mol；The number-average molecular weight of propylene acrylic acid hydroxyl ethyl ester copolymer
For 2000g/mol.
The performance test results of embodiment and comparative example are listed below:
To the medical PVC plastic testing odor standards that embodiment 1-3 and comparative example 1~5 are prepared,
Opinion rating: 1 cannot experience；2 can experience, unobstructive；3 be can obviously experiencing but without too
It interferes greatly；4 have obstruction；5 by larger obstruction；6 is insufferable.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (10)
1. a kind of medical PVC plastics, which is characterized in that the material including following parts by weight:
2. medical PVC plastics according to claim 1, which is characterized in that the stabilizer includes 60~70wt% laurel
Sour zinc and 30~40wt% calcium stearate.
3. medical PVC plastics according to claim 1, which is characterized in that the filler is silicon carbide or niobium oxide.
4. medical PVC plastics according to claim 1, which is characterized in that the antibacterial agent is 50~60wt% lithium carbonate
With 40~50wt% dihydroxymethyl glycolylurea.
5. medical PVC plastics according to claim 1, which is characterized in that the eliminating smell agent is sodium styrene sulfonate or Portugal
Grape saccharic acid.
6. medical PVC plastics according to claim 1, which is characterized in that further include three fourth of citric acid of 2~4 parts by weight
Ester.
7. medical PVC plastics according to claim 1, which is characterized in that further include 18 carbon diene of 1~3 parts by weight
Acid.
8. medical PVC plastics according to claim 1, which is characterized in that further include the polyethylene wax of 0.5~1 parts by weight.
9. medical PVC plastics according to claim 1, which is characterized in that the number-average molecular weight of the polyvinyl chloride is
52000~56000g/mol.
10. medical PVC plastics according to claim 1, which is characterized in that the propylene acrylic acid hydroxyl ethyl ester copolymer
Number-average molecular weight be 1800~2000g/mol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081335.3A CN109796701A (en) | 2019-01-28 | 2019-01-28 | Medical PVC plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081335.3A CN109796701A (en) | 2019-01-28 | 2019-01-28 | Medical PVC plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109796701A true CN109796701A (en) | 2019-05-24 |
Family
ID=66560649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910081335.3A Withdrawn CN109796701A (en) | 2019-01-28 | 2019-01-28 | Medical PVC plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109796701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745597A (en) * | 2020-12-28 | 2021-05-04 | 宜宾海丰和锐有限公司 | High-impact-resistance transparent PVC (polyvinyl chloride) medical material and preparation method thereof |
| CN112778669A (en) * | 2021-01-26 | 2021-05-11 | 浙江天原医用材料有限公司 | Low-odor low-volatility polyvinyl chloride material and preparation method thereof |
-
2019
- 2019-01-28 CN CN201910081335.3A patent/CN109796701A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745597A (en) * | 2020-12-28 | 2021-05-04 | 宜宾海丰和锐有限公司 | High-impact-resistance transparent PVC (polyvinyl chloride) medical material and preparation method thereof |
| CN112778669A (en) * | 2021-01-26 | 2021-05-11 | 浙江天原医用材料有限公司 | Low-odor low-volatility polyvinyl chloride material and preparation method thereof |
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Application publication date: 20190524 |
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