CN103028151A - Degradable titanium clamping seat and preparation method - Google Patents
Degradable titanium clamping seat and preparation method Download PDFInfo
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- CN103028151A CN103028151A CN 201110293671 CN201110293671A CN103028151A CN 103028151 A CN103028151 A CN 103028151A CN 201110293671 CN201110293671 CN 201110293671 CN 201110293671 A CN201110293671 A CN 201110293671A CN 103028151 A CN103028151 A CN 103028151A
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- degradable
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Abstract
The present invention provides a degradable titanium clamping seat and a preparation method. The degradable titanium clamping seat is prepared by a degradable polymer main ingredient of a degradable substrate and an enhancer. The injection molding process includes that: a feed inlet is of 150-165 DEG C, a compression section is of 155-170 DEG C, a metering section is of 160-175 DEG C, a nozzle is of 160-175 DEG C, the mold temperature is 20-40 DEG C, the injection pressure is 45-90 Mpa, the injection time is 40-50 seconds, the dwell time is 0 sec, and the screw speed is 180 r/min. The obtained degradable titanium clamping seat after being used can completely degrade by landfill in the natural environment to achieve the purposes of low carbon, energy saving, and environmental protection.
Description
Technical field
The present invention relates to a kind of degradation-type titanium holder and preparation method, belong to technical field of bioengineering.
Background technology
Clinically, the titanium folder is to prick the product of human vas shape structure for the surgical operation envelope, the shell that is used for placement titanium folder is the titanium holder, present titanium holder all is to make of the petroleum-based plastics of non-degraded, therefore the titanium holder after using all needs by burning disposal, and plastics can produce a large amount of black smokes when burning, can discharge simultaneously the poisonous and carcinogen such as hydrogen chloride, dioxin, severe contamination environment, damaged the health of human health and other animal and plant.For this reason, research and development degradation-type titanium holder and preparation method can not only avoid using rear burning disposal, avoid again contaminated environment simultaneously, and to protect mankind is healthy, again environmental protection and energy saving.But up to now, at home and abroad there is no research and report about degradation-type titanium holder and preparation method.
Summary of the invention
First purpose of the present invention provides degradation-type titanium holder.
Second purpose of the present invention provides degradation-type titanium holder and preparation method.
Degradation-type titanium holder of the present invention is characterized in that: described titanium holder is made of the degradable base material, and its composition and weight proportion are:
100 parts of degradable macromolecule major ingredients, reinforcing agent 15-20 part;
Described macromolecule major ingredient is: polylactic acid (PLA);
Described reinforcing agent is: EMFORCE BIO, Concha rapanae thomasianae powder, modified calcium carbonate, calcium carbonate superfine powder or their blend.
The invention provides the preparation method of degradation-type titanium holder, step and condition are as follows:
The first step: the base material that proportioning is good, send in the homogenizer, rotating speed 700-900 rev/min, mixed 5-8 minute, make uniform base material or base material compound;
Second step: base material or base material compound that the first step is made; respectively under 60-85 ℃; vacuum drying 4-8 hour, to send in the single screw extrusion machine, temperature is controlled at: feeding section 65-90 ℃; batch mixing segment 80-125 ℃; fluxing zone 125-175 ℃, head 100-170 ℃, screw speed 30-60/ divides; after the pelleter pelletizing, make respectively the pellet of above-mentioned base material.
The 3rd step: with above-mentioned base material pellet, under 45-55 ℃, vacuum drying 4-8 hour, stand-by;
The 4th step: the pellet with above-mentioned oven dry, join injection machine, carry out carrying out injection mo(u)lding for all size of making degradation-type titanium holder;
Barrel temperature is set as: charging aperture 150-165 ℃, and compression section 155-170 ℃, metering section 160-175 ℃, nozzle 160-175 ℃;
Mold temperature is: 20-40 ℃;
Injection pressure is: 45-90Mpa;
Injection time is: 40-50 second;
Dwell time is: 0 second;
Screw speed is: 180 rev/mins;
Through after the injection mo(u)lding, just can be made into degradable titanium holder.
Table 1 has provided the used biodegradation base material prescription of part model titanium holder.
Table 1
Obviously, overcome the defective of prior art according to degradation-type titanium holder of the present invention, demonstrated simultaneously very large advantage:
When one, producing, the injection temperature that is used for degradable material is low more than the petroleum-type plastics, has saved power consumption;
Two, can adopt original mould to produce fully, need not again make mould, save the input cost of mould, if certainly adopt hot runner mould, will obtain larger material-saving and energy-saving effect;
Three, degradation-type titanium holder energy ethane via epoxyethane or Co 60 sterilization, the result is safe and effective for the same petroleum-based plastics of sterilizing methods and process, sterilization;
Four, because degradation-type titanium holder is to adopt the environment-friendly materials of Wholly-degradable to make, can reach degradable by concentrating the modes such as landfill after therefore using, really realize the purpose of low-carbon (LC), energy-saving and environmental protection.
The specific embodiment
The prescription that following examples adopt is the prescription of above-mentioned table 1.
The injection molding forming method of embodiment 1 degradation-type titanium holder:
The first step, vacuum drying: will fill a prescription 1, prescription 2 or fill a prescription 3 degradable base material pellet under 48 ℃, vacuum drying 5 hours, stand-by.
Second step, injection mo(u)lding: the prescription 1 that will dry, prescription 2 or 3 the degradable base material pellet of filling a prescription join injection machine and carry out injection mo(u)lding.
Its barrel temperature is set as: 150 ℃ of charging apertures, 160 ℃ of compression sections, 165 ℃ of metering sections, 160 ℃ at nozzle;
Mold temperature is: 20 ℃;
Injection pressure is: first paragraph 75pa, second segment 80Mpa, the 3rd section 50Mpa;
Injection time is: 41 seconds;
Dwell time is: 0 second;
Screw speed is: 180 rev/mins.
Obtain adopting prescription 1, prescription 2 or the degradation-type titanium holder of 3 the degradable base material of filling a prescription.
Above-described embodiment is described in detail Biodegradable titanium holder, and not only preparation technology is detailed rationally, and production cost is lower, and therefore, degradation-type titanium holder of the present invention has good clinical value.
Claims (3)
1. degradation-type titanium holder, it is characterized in that: described titanium holder is made of the degradable base material, and its composition and weight proportion are:
100 parts of degradable macromolecule major ingredients, 15 parts of reinforcing agents;
Described macromolecule major ingredient is: polylactic acid (PLA);
Described reinforcing agent is: EMFORCE BIO, Concha rapanae thomasianae powder, modified calcium carbonate, calcium carbonate superfine powder or their blend.
2. degradation-type titanium holder according to claim 1 is characterized in that described reinforcing agent 15-20 part; Described reinforcing agent is: EMFORCE BIO, Concha rapanae thomasianae powder, modified calcium carbonate, calcium carbonate superfine powder or their blend.
3. a method for preparing such as claim 1,2 described degradation-type titanium holders is characterized in that, step and condition are as follows:
The first step, vacuum drying: will be for the degradable base material pellet of titanium holder, under 45-55 ℃, vacuum drying 4-8 hour, stand-by;
Second step, injection mo(u)lding: above-mentioned oven dry is used for the pellet of the degradable base material of making degradation-type titanium holder, joins injection machine, carry out injection mo(u)lding:
Barrel temperature is set as: charging aperture 150-165 ℃, and compression section 155-170 ℃, metering section 160-175 ℃, nozzle 160-175 ℃;
Mold temperature is: 20-40 ℃;
Injection pressure is: 45-90Mpa;
Injection time is: 40-50 second;
Dwell time is: 0 second;
Screw speed is: 180 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110293671 CN103028151A (en) | 2011-09-29 | 2011-09-29 | Degradable titanium clamping seat and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110293671 CN103028151A (en) | 2011-09-29 | 2011-09-29 | Degradable titanium clamping seat and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103028151A true CN103028151A (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110293671 Pending CN103028151A (en) | 2011-09-29 | 2011-09-29 | Degradable titanium clamping seat and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103028151A (en) |
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2011
- 2011-09-29 CN CN 201110293671 patent/CN103028151A/en active Pending
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |