CN105462071A - Low-odor antibacterial thermoplasticity polymer composition and preparation method thereof - Google Patents
Low-odor antibacterial thermoplasticity polymer composition and preparation method thereof Download PDFInfo
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- CN105462071A CN105462071A CN201511027067.5A CN201511027067A CN105462071A CN 105462071 A CN105462071 A CN 105462071A CN 201511027067 A CN201511027067 A CN 201511027067A CN 105462071 A CN105462071 A CN 105462071A
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- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/19—Quaternary ammonium compounds
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- 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
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- 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
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Abstract
The invention provides a low-odor antibacterial thermoplasticity polymer composition and a preparation method thereof. The low-odor antibacterial thermoplasticity polymer composition is prepared from, by weight, 60-98 parts of a thermoplasticity polymer, 1-6 parts of antibacterial aqueous masterbatches, 0-5 parts of a compatilizer, 0.05-3 parts of an antioxidant and 0.5-5 parts of a lubricating agent. The preparation method of the low-odor antibacterial thermoplasticity polymer composition comprises the following steps that the thermoplasticity polymer, the compatilizer, the antioxidant and the lubricating agent are mixed in a high-speed mixer for 5-10 minutes to obtain premix; the premix is added in a double-screw extruder from a main feeding port, the antibacterial aqueous masterbatches are added in the double-screw extruder from a side feeding port, and then the low-odor antibacterial thermoplasticity polymer composition is obtained through melt blending, extruding, drawing, water cooling, sized dicing and drying. The low-odor antibacterial thermoplasticity polymer composition has the advantages of being low in odor, good in antibacterial effect and small in antibacterial agent dosage.
Description
Technical field
The invention belongs to field of polymer technology, especially relate to antibacterial thermoplastic polymer composition of a kind of low smell and preparation method thereof.
Background technology
Along with the raising of people's living standard, the impact of thermoplastic polymer composition goods on HUMAN HEALTH more and more receives publicity.Therefore, many plastics only have the requirement simultaneously meeting germ resistance and low smell, just can be esthetically acceptable to the consumers.These plastics are mainly used to household electrical appliances, office, toy, packaging, automobile and other industries.
About the patent of antibacterial thermoplastic polymer composition and low-odor thermoplastic polymer composition is more at present.Antibacterial thermoplastic polymer composition is generally adopt the method adding antiseptic-germicide in thermoplastic polymer composition to prepare, working load type antiseptic-germicide and antibacterial matrices effectively can improve the dispersion of antiseptic-germicide usually, reduce antiseptic-germicide consumption, reduce production cost.Low-odor thermoplastic polymer composition is generally prepared by adding odour absorbents, jellyfish grain etc. in thermoplastic polymer composition, wherein odor adsorption agent is the release being suppressed micro-molecular gas by physics or chemical action, and jellyfish is then taken away by the micro-molecular gas produced in thermoplastic polymer by the volatilization of water vapour in the course of processing.The existing patent about the antibacterial thermoplastic polymer composition of low smell is only adopt above-mentioned two kinds of methods to realize low smell and the germ resistance of polymkeric substance simultaneously, does not consider the scattering problem of antiseptic-germicide.
Summary of the invention
In view of this, the present invention is intended to propose antibacterial thermoplastic polymer composition of a kind of low smell and preparation method thereof, simplifies the preparation technology of the antibacterial thermoplastic polymer composition of low smell, the dispersion of the reduction of smell in the course of processing and antiseptic-germicide is worked in coordination with and carries out.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of antibacterial water master batch, is formed by expanded polypropylene particle and antiseptic-germicide aqueous solution.
Further, in the described antiseptic-germicide aqueous solution, the concentration of antiseptic-germicide is 5-30% (w/w); Preferably, in the described antiseptic-germicide aqueous solution, the concentration of antiseptic-germicide is 10-20% (w/w).
Further, described antiseptic-germicide is one or more in water miscible silver ion antimicrobial agent, water miscible quaternary ammonium salt antiseptic-germicide, guanidine bactericides.
Further, the porosity of described expanded polypropylene particle is 50-90%; Preferably, the porosity of described expanded polypropylene particle is 70-90%.
The preparation method of described antibacterial water master batch, comprises the steps:
(1) the antiseptic-germicide aqueous solution is made in antiseptic-germicide dissolving in deionized water;
(2) antibacterial water master batch is made after expanded polypropylene particle being mixed 5-10 minute with the described antiseptic-germicide aqueous solution in high-speed mixer.
Use the antibacterial thermoplastic polymer composition of low smell of described antibacterial water master batch, be made up of the raw material comprising following weight part:
Further, described thermoplastic polymer is the one in polypropylene (PP), polyethylene (PE), polystyrene (PS), impact-resistant polystyrene (HIPS), acrylic nitrile-butadiene-styrene (ABS), polyvinyl chloride (PVC), ABS/PP alloy, HIPS/PP alloy, HIPS/PE alloy, ABS/PVC alloy.
Further, described compatilizer is one or more in the grafts of maleic anhydride stem grafting polyolefin and derivative, polyolefine and polyacrylonitrile-styrene and the grafts of derivative, polyolefine and acrylic nitrile-butadiene-styrene multipolymer thereof and the multipolymer of derivative, alkene and vinyl acetate between to for plastic thereof and derivative, alkene and the multipolymer of acrylic acid multipolymer and derivative, alkene and acrylate and the multipolymer of derivative, alkene and glycidyl methacrylate thereof and derivative thereof.
Further, described oxidation inhibitor is one or more in Hinered phenols antioxidant, suffocated amine antioxidant, phosphite ester kind antioxidant, monothioester kind antioxidant; Described lubricant is one or more in tetrafluoroethylene, ethylene bis stearamide, paraffin, silicone oil, calcium stearate, Magnesium Stearate, Zinic stearas.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, comprises the steps: thermoplastic polymer, compatilizer, oxidation inhibitor, lubricant to mix 5-10 minute in high-speed mixer, obtains Preblend; Added by the main spout of Preblend from twin screw extruder, antibacterial water master batch adds from side spout, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: a district temperature 160-180 DEG C, two district temperature 160-200 DEG C, three district temperature 180-210 DEG C, four district temperature 190-230 DEG C, five district temperature 190-230 DEG C, six district temperature 190-230 DEG C, seven district temperature 190-230 DEG C, eight district temperature 180-210 DEG C, nine district temperature 180-210 DEG C, head temperature 190-230 DEG C.
Relative to prior art, antibacterial thermoplastic polymer composition of low smell of the present invention and preparation method thereof has following advantage:
(1) the antibacterial thermoplastic polymer composition of low smell of the present invention have that smell is low, good anti-bacterial effect, feature that antiseptic-germicide consumption is few.
(2) the antibacterial thermoplastic polymer composition of low smell of the present invention is in Blending Processes, under the help of antibacterial water master batch, the antiseptic-germicide aqueous solution and thermoplastic polymer composition Homogeneous phase mixing, along with the evaporation of water vapor, a large amount of micro-molecular gas is pulled away, and antiseptic-germicide is more uniformly distributed in thermoplastic polymer composition simultaneously.Antibacterial water master batch extends the residence time of water molecules in extruder barrel, has both been conducive to water vapour and has taken more gas molecules out of polymkeric substance, is conducive to again antiseptic-germicide and is dispersed in polymer melt under the driving of moisture movement.Compatilizer is then conducive to matrix resin and expanded polypropylene is compatible, makes the antibacterial thermoplastic polymer composition of low smell have good mechanical property.
Embodiment
Unless otherwise indicated, term used herein all has the implication that those skilled in the art's routine is understood, and for the ease of understanding the present invention, terms more used herein has been carried out following definitions.
All Digital IDs, such as pH, temperature, time, concentration, comprise scope, is all approximation.Understand, although all add term " about " before always not enunciating all Digital IDs.Also will understand, although always do not enunciate, reagent described herein is only example, and its Equivalent is known in the art simultaneously.
The present invention is described in detail below in conjunction with embodiment.
Embodiment 1
A kind of antibacterial water master batch, is formed by expanded polypropylene particle and antiseptic-germicide aqueous solution; The porosity of described expanded polypropylene particle is 85%.
The preparation method of described antibacterial water master batch, comprises the steps:
(1) 500g bi-quaternary ammonium salt antiseptic-germicide is dissolved in 4500g deionized water makes the antiseptic-germicide aqueous solution;
(2) antibacterial water master batch (content of expanded polypropylene is 10%w/w) is made after expanded polypropylene particle being mixed 5 minutes with the described antiseptic-germicide aqueous solution in high-speed mixer.
Use the antibacterial thermoplastic polymer composition of low smell of described antibacterial water master batch, be made up of the raw material comprising following weight part: polypropylene 95 parts, antibacterial water master batch 5 parts, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, comprises the steps: thermoplastic polymer, oxidation inhibitor, lubricant to mix 5 minutes in high-speed mixer, obtains Preblend; Added by the main spout of Preblend from twin screw extruder, antibacterial water master batch adds from side spout, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Embodiment 2
A kind of antibacterial water master batch, is formed by expanded polypropylene particle and antiseptic-germicide aqueous solution; The porosity of described expanded polypropylene particle is 85%.
The preparation method of described antibacterial water master batch, comprises the steps:
(1) 500g bi-quaternary ammonium salt antiseptic-germicide is dissolved in 2000g deionized water makes the antiseptic-germicide aqueous solution;
(2) antibacterial water master batch (content of expanded polypropylene is 10%w/w) is made after expanded polypropylene particle being mixed 5 minutes with the described antiseptic-germicide aqueous solution in high-speed mixer.
Use the antibacterial thermoplastic polymer composition of low smell of described antibacterial water master batch, be made up of the raw material comprising following weight part: polypropylene 96 parts, antibacterial water master batch 4 parts, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, comprises the steps: thermoplastic polymer, oxidation inhibitor, lubricant to mix 5 minutes in high-speed mixer, obtains Preblend; Added by the main spout of Preblend from twin screw extruder, antibacterial water master batch adds from side spout, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Embodiment 3
A kind of antibacterial water master batch, is formed by expanded polypropylene particle and antiseptic-germicide aqueous solution; The porosity of described expanded polypropylene particle is 85%.
The preparation method of described antibacterial water master batch, comprises the steps:
(1) 500g poly hexamethylene biguanide antiseptic-germicide is dissolved in 4500g deionized water makes the antiseptic-germicide aqueous solution;
(2) antibacterial water master batch (content of expanded polypropylene is 10%w/w) is made after expanded polypropylene particle being mixed 5 minutes with the described antiseptic-germicide aqueous solution in high-speed mixer.
Use the antibacterial thermoplastic polymer composition of low smell of described antibacterial water master batch, be made up of the raw material comprising following weight part: ABS92 part, antibacterial water master batch 3 parts, maleic anhydride inoculated polypropylene 3 parts, 0.1 part of antioxidant 1076,0.1 part of irgasfos 168, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, comprises the steps: thermoplastic polymer, compatilizer, oxidation inhibitor, lubricant to mix 5 minutes in high-speed mixer, obtains Preblend; Added by the main spout of Preblend from twin screw extruder, antibacterial water master batch adds from side spout, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Comparative example 1
The antibacterial thermoplastic polymer composition of a kind of low smell, be made up of the raw material comprising following weight part: polypropylene 95 parts, jellyfish grain (content of expanded polypropylene is 10%) 4.55 parts, quaternary ammonium salt antiseptic 0.45 part, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, thermoplastic polymer, jellyfish grain, oxidation inhibitor, lubricant is comprised the steps: to add from the main spout of twin screw extruder, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Comparative example 2
The antibacterial thermoplastic polymer composition of a kind of low smell, be made up of the raw material comprising following weight part: polypropylene 96 parts, jellyfish grain (content of expanded polypropylene is 10%) 3.3 parts, quaternary ammonium salt antiseptic 0.7 part, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, thermoplastic polymer, jellyfish grain, oxidation inhibitor, lubricant is comprised the steps: to add from the main spout of twin screw extruder, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Comparative example 3
The antibacterial thermoplastic polymer composition of a kind of low smell, be made up of the raw material comprising following weight part: ABS92 part, jellyfish grain (content of expanded polypropylene is 10%) 4.55 parts, maleic anhydride inoculated polypropylene 3 parts, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168, poly hexamethylene biguanide 0.45 part, bis-stearamides 0.5 part.
The preparation method of the described antibacterial thermoplastic polymer composition of low smell, thermoplastic polymer, jellyfish grain, compatilizer, oxidation inhibitor, lubricant is comprised the steps: to add from the main spout of twin screw extruder, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: district's temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 210 DEG C, six district's temperature 200 DEG C, seven district's temperature 200 DEG C, eight district's temperature 190 DEG C, nine district's temperature 190 DEG C, head temperature 200 DEG C.
Testing method:
(1) smell testing standard
The organic compound emission (TVOC) of the antibacterial thermoplastic polymer composition of low smell detects according to TS-INT-002 standard.
(2) germ resistance testing standard
QB/T2591-2003A " antibiotic plastic---anti-microbial property evaluation and testing method thereof " standard is adopted to test, experimental strain: intestinal bacteria ATCC25922, streptococcus aureus ATCC6538.
Table 1 is the performance test results of the antibacterial thermoplastic polymer composition of low smell of embodiment 1-3 and comparative example 1-3.
Table 1
Through performance contrast can find, the germ resistance adding the polymer composition of antibacterial water master batch is obviously higher than the polymer composition directly adding antiseptic-germicide, and this illustrates the antibacterial effect adopting antibacterial water master batch to improve antiseptic-germicide; Along with the increase of water content in jellyfish grain, the smell of polymer composition decreases.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an antibacterial water master batch, is characterized in that: formed by expanded polypropylene particle and antiseptic-germicide aqueous solution.
2. antibacterial water master batch according to claim 1, is characterized in that: in the described antiseptic-germicide aqueous solution, the concentration of antiseptic-germicide is 5-30% (w/w); Preferably, in the described antiseptic-germicide aqueous solution, the concentration of antiseptic-germicide is 10-20% (w/w).
3. antibacterial water master batch according to claim 2, is characterized in that: described antiseptic-germicide is one or more in water miscible silver ion antimicrobial agent, water miscible quaternary ammonium salt antiseptic-germicide, guanidine bactericides.
4. antibacterial water master batch according to claim 1, is characterized in that: the porosity of described expanded polypropylene particle is 50-90%; Preferably, the porosity of described expanded polypropylene particle is 70-90%.
5. the preparation method of the antibacterial water master batch according to any one of claim 1-4, is characterized in that: comprise the steps:
(1) the antiseptic-germicide aqueous solution is made in antiseptic-germicide dissolving in deionized water;
(2) antibacterial water master batch is made after expanded polypropylene particle being mixed 5-10 minute with the described antiseptic-germicide aqueous solution in high-speed mixer.
6. use the antibacterial thermoplastic polymer composition of low smell of the antibacterial water master batch according to any one of claim 1-4, it is characterized in that: be made up of the raw material comprising following weight part:
7. the antibacterial thermoplastic polymer composition of low smell according to claim 6, is characterized in that: described thermoplastic polymer is the one in polypropylene, polyethylene, polystyrene, impact-resistant polystyrene, acrylic nitrile-butadiene-styrene, polyvinyl chloride, ABS/PP alloy, HIPS/PP alloy, HIPS/PE alloy, ABS/PVC alloy.
8. the antibacterial thermoplastic polymer composition of low smell according to claim 6, it is characterized in that: described compatilizer is maleic anhydride stem grafting polyolefin and derivative thereof, the grafts of polyolefine and polyacrylonitrile-styrene and derivative thereof, the grafts of polyolefine and acrylic nitrile-butadiene-styrene and derivative thereof, the multipolymer of alkene and vinyl acetate between to for plastic and derivative thereof, alkene and acrylic acid multipolymer and derivative thereof, the multipolymer of alkene and acrylate and derivative thereof, one or more in the multipolymer of alkene and glycidyl methacrylate and derivative thereof.
9. the antibacterial thermoplastic polymer composition of low smell according to claim 6, is characterized in that: described oxidation inhibitor is one or more in Hinered phenols antioxidant, suffocated amine antioxidant, phosphite ester kind antioxidant, monothioester kind antioxidant; Described lubricant is one or more in tetrafluoroethylene, ethylene bis stearamide, paraffin, silicone oil, calcium stearate, Magnesium Stearate, Zinic stearas.
10. the preparation method of the antibacterial thermoplastic polymer composition of low smell according to any one of claim 6-9, it is characterized in that: comprise the steps: thermoplastic polymer, compatilizer, oxidation inhibitor, lubricant to mix 5-10 minute in high-speed mixer, obtain Preblend; Added by the main spout of Preblend from twin screw extruder, antibacterial water master batch adds from side spout, through melt blending, extrude, tie rod, water-cooled, pelletizing, drying, obtain the antibacterial thermoplastic polymer composition of low smell; Wherein, the expressing technique of described twin screw extruder is: a district temperature 160-180 DEG C, two district temperature 160-200 DEG C, three district temperature 180-210 DEG C, four district temperature 190-230 DEG C, five district temperature 190-230 DEG C, six district temperature 190-230 DEG C, seven district temperature 190-230 DEG C, eight district temperature 180-210 DEG C, nine district temperature 180-210 DEG C, head temperature 190-230 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027067.5A CN105462071A (en) | 2015-12-30 | 2015-12-30 | Low-odor antibacterial thermoplasticity polymer composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027067.5A CN105462071A (en) | 2015-12-30 | 2015-12-30 | Low-odor antibacterial thermoplasticity polymer composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN105462071A true CN105462071A (en) | 2016-04-06 |
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| CN106117712A (en) * | 2016-06-29 | 2016-11-16 | 安徽徽隆包装有限公司 | A kind of preparation method of the plastic packaging bag of resistance to bacterium |
| CN108192203A (en) * | 2017-12-25 | 2018-06-22 | 中广核俊尔（上海）新材料有限公司 | Glass fiber reinforced polypropylene composite material of low smell and preparation method thereof |
| CN109354766A (en) * | 2018-10-11 | 2019-02-19 | 朱登年 | Polypropylene antibacterial master batch and preparation method thereof |
| CN110066459A (en) * | 2019-04-18 | 2019-07-30 | 青岛拜士特新材料有限公司 | A kind of antibacterial matrices and preparation method of sustained-release antibacterial |
| CN112625303A (en) * | 2020-12-16 | 2021-04-09 | 南京旭智材料科技有限公司 | Preparation method of antibacterial master batch |
| CN112847895A (en) * | 2020-12-17 | 2021-05-28 | 金发科技股份有限公司 | PVC material and preparation method and application thereof |
| CN113172787A (en) * | 2021-05-06 | 2021-07-27 | 东莞市久磐塑胶有限公司 | Antibacterial spraying-free plastic, production device and processing method |
| CN113817317A (en) * | 2021-09-24 | 2021-12-21 | 江苏金发科技新材料有限公司 | Bromine-antimony flame-retardant nylon composite material with low pungent smell, and preparation method and application thereof |
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| CN113172787A (en) * | 2021-05-06 | 2021-07-27 | 东莞市久磐塑胶有限公司 | Antibacterial spraying-free plastic, production device and processing method |
| CN113817317A (en) * | 2021-09-24 | 2021-12-21 | 江苏金发科技新材料有限公司 | Bromine-antimony flame-retardant nylon composite material with low pungent smell, and preparation method and application thereof |
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Application publication date: 20160406 |