CN105694381A - Preparation method of antibiotic plastic - Google Patents
Preparation method of antibiotic plastic Download PDFInfo
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- CN105694381A CN105694381A CN201410693323.3A CN201410693323A CN105694381A CN 105694381 A CN105694381 A CN 105694381A CN 201410693323 A CN201410693323 A CN 201410693323A CN 105694381 A CN105694381 A CN 105694381A
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Abstract
The invention relates to a preparation method of an antibiotic plastic. The antibiotic plastic comprises, by weight, 100 parts of polyethylene glycol terephthalate, 0.4-0.6 parts of tributyl phosphite, 0.5-1 part of dibenzylidene sorbitol and 0.1-0.5 parts of silver-supported zirconium phosphate. The silver-supported zirconium phosphate is adopted as a bactericide, and dibenzylidene sorbitol is adopted as a nucleating agent, so polyethylene glycol terephthalate has a good antibiosis effect under high transparency.
Description
Technical field
The present invention relates to a kind of antibiotic plastic, the particularly preparation method of a kind of PET antibiotic plastic。
Background technology
Plastic bottle is mainly by the material such as polyethylene or polypropylene and make after with the addition of multiple organic solvent。Plastic bottle widely uses polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP) are raw material, after with the addition of corresponding organic solvent, after high-temperature heating, by the mould of plastics plastic containers through blowing, extrusion blow or injection mo(u)lding。It is mainly used in liquid or the solid disposable plastic packing containers such as beverage, food, pickles, Mel, dry fruit, edible oil, agricultural and veterinary chemicals。Plastic bottle has the features such as not broken, with low cost, transparency is high, food grade materials。
Owing to bottle is wanted directly to contact with hands, it is easy to breed bacteria。
Summary of the invention
In order to overcome the deficiency of the easy breed bacteria of existing bottle, the present invention is provided to manufacture bottleA kind of preparation method of antibiotic plastic。
This invention address that the technical scheme of its technical problem is: a kind of antibiotic plastic, including the component of following weight portion: polyethylene terephthalate 100 parts, tributyl phosphite 0.4 ~ 0.6 part, Sorbitol contract two benzaldehyde 0.5 ~ 1 part, silver-loaded zirconium phosphate 0.1 ~ 0.5 part。
The number-average molecular weight of described polyethylene terephthalate is 23000-32000g/mol。
The intrinsic viscosity of described polyethylene terephthalate is 0.7-0.9dl/g。
The preparation method of above-mentioned antibiotic plastic, comprises the following steps:
A, by polyethylene terephthalate forced air drying 2 hours at 120 DEG C；
B, the polyethylene terephthalate through a step being added blender, two benzaldehydes that simultaneously tributyl phosphite, Sorbitol contracted, silver-loaded zirconium phosphate add in blender, and the lower 60 revs/min of stirring mixing of blender room temperature make ultimate compound in 20 minutes。
C, b step is stirred after ultimate compound add in double screw extruder, 1 district's processing temperature of double screw extruder is 255 DEG C, 2 district's processing temperatures are 260 DEG C, and 3 district's processing temperatures are 265 DEG C, and 4 district's processing temperatures are 265 DEG C, 5 district's processing temperatures are 260 DEG C, 6 district's processing temperatures are 255 DEG C, and head temperature is 250 DEG C, and engine speed is 290 turns/min, check rod after extrusion, dries pelletizing and makes antibiotic plastic。
Mix under the plastics room temperature of this formula, then double screw extruder extruding pelletization。
The present invention is consistent compared with the polyethylene terephthalate plastic pellet of technology in use, does not repeat them here。
The beneficial effects of the present invention is: adopt silver-loaded zirconium phosphate as antibacterial, adopt Sorbitol to contract two benzaldehydes as tuberculosis agent so that polyethylene terephthalate also has reasonable antibacterial effect under the high grade of transparency simultaneously。
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail。
Embodiment one
A kind of antibiotic plastic, including the component of following weight portion: polyethylene terephthalate 100 parts, tributyl phosphite 0.4 part, Sorbitol contract two benzaldehyde 1 part, silver-loaded zirconium phosphate 0.2 part。
The preparation method of above-mentioned antibiotic plastic, comprises the following steps:
A, by polyethylene terephthalate forced air drying 2 hours at 120 DEG C；
B, the polyethylene terephthalate through a step being added blender, two benzaldehydes that simultaneously tributyl phosphite, Sorbitol contracted, silver-loaded zirconium phosphate add in blender, and the lower 60 revs/min of stirring mixing of blender room temperature make ultimate compound in 20 minutes。
C, b step is stirred after ultimate compound add in double screw extruder, 1 district's processing temperature of double screw extruder is 255 DEG C, 2 district's processing temperatures are 260 DEG C, and 3 district's processing temperatures are 265 DEG C, and 4 district's processing temperatures are 265 DEG C, 5 district's processing temperatures are 260 DEG C, 6 district's processing temperatures are 255 DEG C, and head temperature is 250 DEG C, and engine speed is 290 turns/min, check rod after extrusion, dries pelletizing and makes antibiotic plastic。
Embodiment two
A kind of antibiotic plastic, including the component of following weight portion: polyethylene terephthalate 100 parts, tributyl phosphite 0.6 part, Sorbitol contract two benzaldehyde 0.5 part, silver-loaded zirconium phosphate 0.5 part。
The number-average molecular weight of described polyethylene terephthalate is 30000g/mol。
The intrinsic viscosity of described polyethylene terephthalate is 0.7dl/g。
A, by polyethylene terephthalate forced air drying 2 hours at 120 DEG C；
B, the polyethylene terephthalate through a step being added blender, two benzaldehydes that simultaneously tributyl phosphite, Sorbitol contracted, silver-loaded zirconium phosphate add in blender, and the lower 60 revs/min of stirring mixing of blender room temperature make ultimate compound in 20 minutes。
C, b step is stirred after ultimate compound add in double screw extruder, 1 district's processing temperature of double screw extruder is 255 DEG C, 2 district's processing temperatures are 260 DEG C, and 3 district's processing temperatures are 265 DEG C, and 4 district's processing temperatures are 265 DEG C, 5 district's processing temperatures are 260 DEG C, 6 district's processing temperatures are 255 DEG C, and head temperature is 250 DEG C, and engine speed is 290 turns/min, check rod after extrusion, dries pelletizing and makes antibiotic plastic。
The anti-microbial property of the antibiotic plastic of the embodiment of the present invention 1 to embodiment 2 preparationSuch as table 1Shown in。
The bactericidal property test of antibiotic plastic:
Bactericidal property detection is with reference to China's people's republicanismState of stateLight industry standard QB/T2591-2003, adopts film applicator coating, investigates the sterilizing rate of sample 24h, and total plate count measures with reference to GB/T4789.2-2003 counting。50mm × 50mm sterilization model is made by hot-forming for pellet。The calculating formula of sterilizing rate is as follows: R (%)=(B-C)/B × 100
Wherein R is sterilizing rate (%)；B is the average bacterial count recovered of blank control sample, cfu/ sheet；C is bactericidal plastic sample average bacterial count recovered, cfu/ sheet。
Table 1
Claims (3)
1. the preparation method of an antibiotic plastic, it is characterised in that comprise the following steps:
A, by polyethylene terephthalate forced air drying 2 hours at 120 DEG C；
B, the polyethylene terephthalate through a step being added blender, two benzaldehydes that simultaneously tributyl phosphite, Sorbitol contracted, silver-loaded zirconium phosphate add in blender, and the lower 60 revs/min of stirring mixing of blender room temperature make ultimate compound in 20 minutes;
C, b step is stirred after ultimate compound add in double screw extruder, 1 district's processing temperature of double screw extruder is 255 DEG C, 2 district's processing temperatures are 260 DEG C, and 3 district's processing temperatures are 265 DEG C, and 4 district's processing temperatures are 265 DEG C, 5 district's processing temperatures are 260 DEG C, 6 district's processing temperatures are 255 DEG C, and head temperature is 250 DEG C, and engine speed is 290 turns/min, check rod after extrusion, dries pelletizing and makes antibiotic plastic。
2. the preparation method of antibiotic plastic according to claim 1, it is characterised in that: the number-average molecular weight of described polyethylene terephthalate is 23000-32000g/mol。
3. the preparation method of antibiotic plastic according to claim 1, it is characterised in that: the intrinsic viscosity of described polyethylene terephthalate is 0.7-0.9dl/g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693323.3A CN105694381A (en) | 2014-11-27 | 2014-11-27 | Preparation method of antibiotic plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693323.3A CN105694381A (en) | 2014-11-27 | 2014-11-27 | Preparation method of antibiotic plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105694381A true CN105694381A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410693323.3A Pending CN105694381A (en) | 2014-11-27 | 2014-11-27 | Preparation method of antibiotic plastic |
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| CN (1) | CN105694381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108659479A (en) * | 2018-05-31 | 2018-10-16 | 苏州乔纳森新材料科技有限公司 | A kind of preparation method of the medical plastics of resistance to enzyme |
| CN112500626A (en) * | 2020-12-02 | 2021-03-16 | 漳州市圣铭工贸有限公司 | Method for preparing plastic bottle by using polyethylene glycol terephthalate waste |
-
2014
- 2014-11-27 CN CN201410693323.3A patent/CN105694381A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108659479A (en) * | 2018-05-31 | 2018-10-16 | 苏州乔纳森新材料科技有限公司 | A kind of preparation method of the medical plastics of resistance to enzyme |
| CN112500626A (en) * | 2020-12-02 | 2021-03-16 | 漳州市圣铭工贸有限公司 | Method for preparing plastic bottle by using polyethylene glycol terephthalate waste |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160622 |
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| WD01 | Invention patent application deemed withdrawn after publication |