CN114015206A - Degradable cotton swab stick and preparation method thereof - Google Patents
Degradable cotton swab stick and preparation method thereof Download PDFInfo
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- CN114015206A CN114015206A CN202111313374.5A CN202111313374A CN114015206A CN 114015206 A CN114015206 A CN 114015206A CN 202111313374 A CN202111313374 A CN 202111313374A CN 114015206 A CN114015206 A CN 114015206A
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- -1 polybutylene succinate Polymers 0.000 claims abstract description 27
- 230000015556 catabolic process Effects 0.000 claims abstract description 26
- 238000006731 degradation reaction Methods 0.000 claims abstract description 26
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 20
- 239000004626 polylactic acid Substances 0.000 claims abstract description 20
- 229920002961 polybutylene succinate Polymers 0.000 claims abstract description 18
- 239000004631 polybutylene succinate Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 12
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical group O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims description 10
- 229920002101 Chitin Polymers 0.000 claims description 8
- 229940043375 1,5-pentanediol Drugs 0.000 claims description 7
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 6
- 229960004889 salicylic acid Drugs 0.000 claims description 6
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 11
- 230000000844 anti-bacterial effect Effects 0.000 description 9
- ZMKVBUOZONDYBW-UHFFFAOYSA-N 1,6-dioxecane-2,5-dione Chemical compound O=C1CCC(=O)OCCCCO1 ZMKVBUOZONDYBW-UHFFFAOYSA-N 0.000 description 8
- 238000005070 sampling Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000006065 biodegradation reaction Methods 0.000 description 7
- 238000012795 verification Methods 0.000 description 7
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 239000007822 coupling agent Substances 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229920000379 polypropylene carbonate Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- JRHJUUZQKAUUHK-UHFFFAOYSA-N 2-ethoxydodecanamide Chemical compound C(C)OC(C(=O)N)CCCCCCCCCC JRHJUUZQKAUUHK-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241001360526 Escherichia coli ATCC 25922 Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/028—Sampling from a surface, swabbing, vaporising
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The application relates to a degradable cotton swab rod and a preparation method thereof, relating to the field of medical supplies, wherein the degradable cotton swab rod is prepared from the following raw materials in parts by weight: 130 parts of polybutylene succinate 110-90 parts, 70-90 parts of polylactic acid, 15-25 parts of filler, 5-10 parts of toughening agent, 3-5 parts of compatilizer and 1-2 parts of degradation promoter; a preparation method of a degradable cotton swab stick comprises the following steps: s1, heating the polybutylene succinate, the polylactic acid, the filler, the toughening agent, the compatilizer, the degradation promoter, the antistatic additive and the antibacterial agent to 120-150 ℃ according to a set proportion, and stirring for 20-25min to obtain a mixed material; s2, extruding and cooling the blend to obtain a raw material rod; and S3, cutting the raw material rod to obtain the formed cotton swab rod. This application has and makes the clean cotton swab handle degradable of verifying and can have antistatic and antibiotic effect simultaneously concurrently.
Description
Technical Field
The application relates to the field of medical supplies, in particular to a degradable cotton swab rod and a preparation method thereof.
Background
Cleaning validation is written evidence that the cleaning procedure for the surface of the device for direct contact with the product is reproducible and effective. In the cleaning verification process, a large amount of cleaning verification sampling cotton swabs are used for professional sampling, and the cleaning verification cotton swabs can be applied after the cleaning verification is successfully verified by an analysis method of a quality control department of a pharmaceutical enterprise before being used. The cotton swab for cleaning and verification is different from the cotton swab used in the general medical industry, has higher requirement, needs no falling impurities and low TOC, and has no influence on a sampling sample.
The cleaning verification sampling cotton swab comprises a polypropylene handle and a polyester head sleeved at one end of the handle, and an easy-to-break opening is formed in the handle, so that an experimenter can break the handle to place the polyester head into a small bottle for minimum processing and sampling to store a sample.
The handle of the cotton swab for cleaning and verifying sampling is usually made of polypropylene materials, and the polypropylene materials are not degradable, so that the environment is polluted when the cotton swab is used in a large quantity.
Disclosure of Invention
In order to improve the problem that the handle of the cleaning verification cotton swab is not degradable, the application provides a degradable cotton swab rod and a preparation method.
In a first aspect, the application provides a degradable cotton swab stick, which adopts the following technical scheme:
a degradable cotton swab stick is prepared from the following raw materials in parts by weight: 130 parts of polybutylene succinate 110-90 parts, 70-90 parts of polylactic acid, 15-25 parts of filler, 5-10 parts of toughening agent, 3-5 parts of compatilizer and 1-2 parts of degradation promoter.
By adopting the technical scheme, the poly (butylene succinate) and the polylactic acid have biodegradability, and the final degradation products are carbon dioxide, water and micromolecular biomass, and belong to environment-friendly materials, so that the prepared cotton swab rod can be biodegraded, and the pollution to the environment after the cotton swab rod is used is reduced; the degradation accelerant can ensure good mechanical property of the cotton swab stick, can also accelerate the biodegradation rate of the poly butylene succinate and the polylactic acid, and improve the degradation efficiency of the cotton swab stick; the polylactic acid can increase the viscosity of a mixed solution of the polybutylene succinate and the polylactic acid, is beneficial to improving the forming stability of the cotton swab rod in the processing process and enables the strength and the toughness of the cotton swab rod to be better; the filler is low in price and easy to obtain, the production cost of the cotton swab stick is reduced, and the mechanical strength of the cotton swab stick can be enhanced.
Optionally, the degradation promoter is one or more of salicylic acid and 1, 5-pentanediol.
By adopting the technical scheme, salicylic acid can destroy the spiral chain structure of the poly (butylene succinate), the original regularity of a poly (butylene succinate) molecular chain is disturbed, the motion activity of the chain segment is increased, microorganisms can more easily attack ester bonds in the molecular chain, and the poly (butylene succinate) is efficiently degraded.
1, 5-pentanediol and poly (butylene succinate) form a copolymer, and the 1, 5-pentanediol increases the content of irregular chain segments on the main chain of the poly (butylene succinate) and shows the phenomenon that the molecular chain spacing is enlarged and loosened, so that the flexibility of the molecular chain is increased, the recognition and attachment capacity of microorganisms to the copolymer is enhanced, and the biodegradability of the poly (butylene succinate) is improved.
Optionally, the filler comprises chitin and mica powder in a weight ratio of 1: 2.
By adopting the technical scheme, the chitin is a renewable resource, has biological decomposability, is easy to obtain materials and low in cost, and has certain antibacterial capacity, so that the cotton swab rod is not easily polluted by bacteria, the cleanliness of the cotton swab rod is improved, and the sampling accuracy of the cotton swab is ensured.
The mica powder has the characteristics of high temperature resistance, acid and alkali resistance and the like, and can improve the chemical stability of the cotton swab rod; the chitin and the mica powder are simultaneously used as the filler, so that the production cost of the cotton swab rod is greatly reduced, and the cotton swab rod has good antibacterial property and chemical stability and is convenient to use.
Optionally, the antistatic agent also comprises 1-2 parts of antistatic additive by weight.
By adopting the technical scheme, the anti-static additive can improve the anti-static capacity of the cotton swab rod and ensure the high cleanliness of the product.
Optionally, the antistatic additive is an esterquat.
By adopting the technical scheme, the ester quaternary ammonium salt is novel, is a cationic surfactant, has good antistatic performance, is easy to biodegrade, and is green and environment-friendly; the esterquat can establish netted electrically conductive passageway inside the substrate and on the surface, conduct and release the static charge that produces through ionic conduction, and the resistance on effectual reduction plastics surface makes the plastics swab stick have better antistatic effect, is difficult for the dust absorption, and esterquat has better compatibility with poly butylene succinate and polylactic acid, makes the swab stick all have better antistatic function in whole life cycle, guarantees the cleanness of swab stick.
Optionally, the antibacterial agent also comprises 2-3 parts by weight of antibacterial agent.
By adopting the technical scheme, the antibacterial agent can enable the cotton swab stick to have antibacterial property, is not easy to be polluted, is beneficial to long-term storage of the cotton swab stick, and ensures the cleanness and sanitation of the cotton swab stick.
Optionally, the antibacterial agent is an isothiazolinone.
By adopting the technical scheme, after the isothiazolinone contacts with the microorganism, the growth of the isothiazolinone can be rapidly and irreversibly inhibited, so that the microorganism cell death is caused, and therefore, the cotton swab rod has a good antibacterial effect and can be naturally biodegraded, and the cotton swab rod is more fully degraded.
In a second aspect, the application provides a preparation method of a degradable cotton swab stick, which adopts the following technical scheme:
a preparation method of a degradable cotton swab stick comprises the following steps:
s1, heating the polybutylene succinate, the polylactic acid, the filler, the toughening agent, the compatilizer, the degradation promoter, the antistatic additive and the antibacterial agent to 120-150 ℃ according to a set proportion, and stirring for 20-25min to obtain a mixed material;
s2, extruding and cooling the blend to obtain a raw material rod;
and S3, cutting the raw material rod to obtain the formed cotton swab rod.
By adopting the technical scheme, the prepared cotton swab rod can realize complete biodegradation due to the fact that the polybutylene succinate, the polylactic acid, the filler, the degradation accelerator, the antistatic additive and the antibacterial agent are biodegradable and belong to environment-friendly materials; the degradation promoter can improve the biodegradation rate of the poly (butylene succinate), and is beneficial to the recovery and degradation of the cotton swab stick; the addition of the antibacterial agent is beneficial to the long-term storage of the cotton swab stick and the cleanness of the cotton swab stick is kept; the antistatic additive enables the plastic swab stick to have a good antistatic effect, dust is not easy to absorb, and high cleanliness of a product is guaranteed; the production process is simple, the industrial large-scale production is easy to realize, and the method has good application prospect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the poly butylene succinate and the polylactic acid have biodegradability, so that the prepared cotton swab stick can be biodegraded, and the pollution to the environment after the cotton swab stick is used is reduced; the degradation accelerant can ensure good mechanical property of the cotton swab stick, can also accelerate the biodegradation rate of the poly butylene succinate and the polylactic acid, and improve the degradation efficiency of the cotton swab stick;
2. the esterquat can establish a net-shaped conductive channel inside and on the surface of the base material, and conducts and releases generated static charges through ion conduction, so that the resistance of the surface of the plastic is effectively reduced, the plastic swab rod has a good antistatic effect, dust is not easy to absorb, and the cleanness of the swab rod is ensured;
3. after the isothiazolinone contacts with the microorganism, the growth of the isothiazolinone can be quickly and irreversibly inhibited, so that microbial cells are killed, and therefore, the cotton swab stick has a good antibacterial effect, is beneficial to long-term storage of the cotton swab stick, and ensures the cleanness and sanitation of the cotton swab stick.
Detailed Description
Examples
Example 1
This example discloses a degradable swab stick;
the degradable cotton swab rod is prepared as follows:
s1, heating 130g of polybutylene succinate, 85g of polylactic acid, 15g of kaolin (filler), 10g of polypropylene carbonate (toughening agent), 4g of aluminate coupling agent (compatilizer) and 2g of adipic acid (degradation accelerator) to 120 ℃, and stirring for 25min to obtain a mixed material;
s2, extruding and cooling the blend to obtain a raw material rod;
and S3, cutting the raw material rod to obtain the formed cotton swab rod.
Example 2
This example discloses a degradable swab stick;
the degradable cotton swab rod is prepared as follows:
s1, heating 126g of polybutylene succinate, 90g of polylactic acid, 25g of kaolin (filler), 5g of polypropylene carbonate (toughening agent), 5g of aluminate coupling agent (compatilizer) and 1g of adipic acid (degradation accelerator) to 150 ℃, and stirring for 20min to obtain a mixed material;
s2, extruding and cooling the blend to obtain a raw material rod;
and S3, cutting the raw material rod to obtain the formed cotton swab rod.
Example 3
This example discloses a degradable swab stick;
the degradable cotton swab rod is prepared as follows:
s1, heating 110g of polybutylene succinate, 70g of polylactic acid, 18g of kaolin (filler), 6g of polypropylene carbonate (toughening agent), 3g of aluminate coupling agent (compatilizer) and 1.5g of adipic acid (degradation accelerator) to 130 ℃, and stirring for 23min to obtain a mixed material;
s2, extruding and cooling the blend to obtain a raw material rod;
and S3, cutting the raw material rod to obtain the formed cotton swab rod.
Example 4
This example differs from example 3 in that: the degradation promoter is salicylic acid.
Example 5
This example differs from example 3 in that: the degradation accelerator is 1, 5-pentanediol.
Example 6
This example differs from example 3 in that: 0.6g of salicylic acid and 0.9g of 1, 5-pentanediol were used as the degradation promoter.
Example 7
This example differs from example 6 in that: the filler used was 9g of chitin and 9g of mica powder.
Example 8
This example differs from example 6 in that: the filler used was 6g of chitin and 12g of mica powder.
Example 9
This example differs from example 8 in that: in step S1, 1g of ethoxylaurku amine (antistatic additive) was added.
Example 10
This example differs from example 9 in that: in step S1, 1g of esterquat (antistatic additive) was added.
Example 11
The present embodiment differs from embodiment 10 in that: in step S1, 2g of esterquat (antistatic additive) was added.
Example 12
This embodiment differs from embodiment 11 in that: in step S1, 1.3g of esterquat (antistatic additive) was added.
Example 13
This example differs from example 12 in that: in step S1, 1.5g of zinc oxide (antibacterial agent) was added.
Example 14
This example differs from example 13 in that: in step S1, 3g of isothiazolinone (antibacterial agent) is added.
Example 15
This example differs from example 14 in that: in step S1, 2g of isothiazolinone (antibacterial agent) is added.
Example 16
This example differs from example 15 in that: in step S1, 2.5g of isothiazolinone (antibacterial agent) is added.
Comparative example
Comparative example 1
This comparative example differs from example 1 in that: the polybutylene succinate in step S1 is polylactic acid.
Comparative example 2
This comparative example differs from example 1 in that: the polylactic acid in step S1 is polybutylene succinate.
Comparative example 3
This comparative example differs from example 1 in that: no (degradation promoter) was added in step S1.
Performance test
1. The biodegradability of the cotton swab rods prepared in examples 1-16 and comparative examples 1-3 is detected according to QB/T2670 and GB/T20197 detection methods, and the recorded experimental results are shown in Table 1.
2. The antibacterial properties of the swab sticks prepared in examples 1 to 16 and comparative examples 1 to 3 were measured according to the method of ASTM E2149-10 "antibacterial behavior of Steady-State antibacterial agent under dynamic contact conditions" test index of Escherichia coli ATCC25922 and Staphylococcus aureus ATC6538, and the results of the test were recorded as shown in Table 1.
3. The impact resistance of the swab sticks prepared in examples 1 to 16 and comparative examples 1 to 3 was measured using a cantilever beam Zwick/Rock5113 impact tester according to the method of GB/T9639.1-2008, and the test results were recorded as shown in Table 1, using notched specimen impact strength as an index.
4. The surface resistances of the cotton swab sticks manufactured in examples 1 to 16 and comparative examples 1 to 3 were measured according to the method of SJ/T10694 to 2006, and the results of the tests were recorded as shown in Table 1.
TABLE 1 results table
As can be seen by combining examples 1-3 and Table 1, the appropriate amount of each component of the swab stick enhances the notched impact strength of the swab stick.
It can be seen from the combination of examples 4-6 and Table 1 that the degradation promoter can greatly increase the biodegradation rate of the swab stick, and when salicylic acid and 1, 5-pentanediol are added together, the degradation of the swab stick is more facilitated, and the biodegradation rate of the swab stick is higher.
It can be seen from the combination of examples 7-8 and Table 1 that chitin and mica powder as fillers for cotton swab sticks can reduce the production cost of cotton swab sticks, and chitin can improve the antibacterial and bacteriostatic rate of cotton swab sticks.
By combining examples 9-12 and table 1, it can be seen that the esterquat has better antistatic ability than ethoxylauramide in the cotton swab stick, so that the cotton swab stick is not easy to absorb dust, and can better keep high cleanliness of the cotton swab stick; meanwhile, the proper addition amount of the ester quaternary ammonium salt is more beneficial to the improvement of the antistatic capability of the cotton swab rod.
It can be seen from the combination of examples 13-16 and table 1 that isothiazolinone can better improve the antibacterial ability of the swab stick than zinc oxide, so that the swab stick can further better keep clean, thereby improving the accuracy of cleaning and verifying the sampling of the swab.
By combining the example 1, the comparative examples 1 to 3 and the table 1, the degradation promoter can better promote the degradation of the cotton swab stick and improve the biodegradation rate of the cotton swab stick; meanwhile, the polybutylene succinate and the polylactic acid can complement each other to improve the impact strength of the notch sample of the cotton swab stick, so that the cotton swab stick has better strength.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A degradable cotton swab stick is characterized in that: the feed is prepared from the following raw materials in parts by weight: 130 parts of polybutylene succinate 110-90 parts, 70-90 parts of polylactic acid, 15-25 parts of filler, 5-10 parts of toughening agent, 3-5 parts of compatilizer and 1-2 parts of degradation promoter.
2. The degradable swab stick of claim 1, wherein: the degradation promoter is one or more of salicylic acid and 1, 5-pentanediol.
3. The degradable swab stick of claim 1, wherein: the filler comprises chitin and mica powder in a weight ratio of 1: 2.
4. The degradable swab stick of claim 1, wherein: also comprises 1-2 parts of antistatic additive by weight.
5. The degradable swab stick of claim 4, wherein: the antistatic additive is ester quaternary ammonium salt.
6. The degradable swab stick of claim 1, wherein: also comprises 2 to 3 weight portions of antibacterial agent.
7. The degradable swab stick of claim 6, wherein: the antibacterial agent is isothiazolinone.
8. A preparation method of a degradable cotton swab stick is characterized by comprising the following steps: the method comprises the following steps:
s1, heating the polybutylene succinate, the polylactic acid, the filler, the toughening agent, the compatilizer, the degradation promoter, the antistatic additive and the antibacterial agent to 120-150 ℃ according to a set proportion, and stirring for 20-25min to obtain a mixed material;
s2, extruding and cooling the blend to obtain a raw material rod;
and S3, cutting the raw material rod to obtain the formed cotton swab rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313374.5A CN114015206A (en) | 2021-11-08 | 2021-11-08 | Degradable cotton swab stick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313374.5A CN114015206A (en) | 2021-11-08 | 2021-11-08 | Degradable cotton swab stick and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114015206A true CN114015206A (en) | 2022-02-08 |
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| CN202111313374.5A Pending CN114015206A (en) | 2021-11-08 | 2021-11-08 | Degradable cotton swab stick and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114921072A (en) * | 2022-04-22 | 2022-08-19 | 湖北正宇环保材料科技有限公司 | Antibacterial degradable injection molding material special for oral care products and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704788A (en) * | 2020-05-16 | 2020-09-25 | 中国科学院理化技术研究所 | Fully-biodegradable cotton swab stick and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111704788A (en) * | 2020-05-16 | 2020-09-25 | 中国科学院理化技术研究所 | Fully-biodegradable cotton swab stick and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921072A (en) * | 2022-04-22 | 2022-08-19 | 湖北正宇环保材料科技有限公司 | Antibacterial degradable injection molding material special for oral care products and preparation method thereof |
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