CN108070146A - A kind of acrylic resin composite material and preparation method thereof - Google Patents
A kind of acrylic resin composite material and preparation method thereof Download PDFInfo
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- CN108070146A CN108070146A CN201611016622.9A CN201611016622A CN108070146A CN 108070146 A CN108070146 A CN 108070146A CN 201611016622 A CN201611016622 A CN 201611016622A CN 108070146 A CN108070146 A CN 108070146A
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- acrylic resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of acrylic resin composite material and preparation method thereof, is related to technical field of polymer materials.Acrylic resin composite material of the present invention is made of following raw material：Acrylic resin, ethylene-vinyl acetate copolymer, barite, antioxidant, optothermal stabilizer, lubricant, acrylic resin composite material produced by the present invention has the characteristics that function admirable, machine-shaping are good, acrylic resin composite material and preparation method thereof of the present invention is simple, production efficiency is high, and the material can be used for the occasion for being often subject to external force, stress whitening phenomenon can be avoided, and then expands the application field and scope of polyacrylic resin material.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to a kind of acrylic resin composite material and its preparation side
Method.
Background technology
Acrylic resin is a kind of extremely common high molecular material, and application range is very extensive, but its product makes
With being stretched in the process, bend, impact the phenomenon that being often present with White Patches when external force act on, that is, described in us
Stress whitening.Product not only influences its appearance after stress whitening phenomenon occurs, and product elongation at break can be caused to drop
Low, strength reduction and stress crack resistance performance are deteriorated, and have seriously affected the use of product.
In the prior art, in the stress white hair solution of acrylic resin product it is relatively conventional be by product into
Product, i.e., be placed under certain temperature conditionss and post-processed to eliminate its internal stress by row heat treatment.But this method is directed to
The relatively simple product of this body structure, when product this body structure is more complicated, internal stress eradicating efficacy is general.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of acrylic resin composite material and preparation method thereof, solve
Acrylic resin product is easily acted on by internal stress in the prior art, the technical issues of causing product part white hair, degradation.
In order to achieve the above object, technical scheme is achieved by the following technical programs：
A kind of acrylic resin composite material, the acrylic resin composite material are made of the raw material of following parts by weight：
80~98 parts of acrylic resin, 2~20 parts of ethylene-vinyl acetate copolymer, 5~30 parts of barite, 0.2~1 part of antioxidant, light
0.1~1 part of heat stabilizer, 0.1~1 part of lubricant.
Preferably, ethylene-vinyl acetate copolymer melt index under the conditions of 220 DEG C/10Kg is 5~15g/
10min。
Preferably, acrylic resin melt index under the conditions of 230 DEG C/2.16Kg is 40~100g/10min.
Preferably, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
Preferably, the optothermal stabilizer is monothioester type thermal stabilizing agent, organic tin heat stabilizer, hindered amine, is obstructed
At least one of phenol, diphenyl phosphite, triphenyl phosphite.
Preferably, the monothioester type thermal stabilizing agent is the double lauryl alcohol esters of thio-2 acid, thio-2 acid pair octadecyl alcolols
The double tridecanol esters of ester, thio-2 acid or the double tetradecyl alchohol esters of thio-2 acid；The organic tin heat stabilizer is containing tin mercaptides
One kind in salt, maleic acid pink salt or pant tin carboxylate；The hindered amine is one kind in naphthylamines, diphenylamines or p-phenylenediamine.
Preferably, the hindered phenol is 2,6- three-level butyl -4- methylphenols, double (3,5- three-level butyl -4- hydroxy benzenes
Base) thioether, four (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol esters or β-(3,5- di-t-butyl -4- hydroxyls
Phenyl) one kind in the positive octadecanol ester of propionic acid；The triphenyl phosphite is three (2.4- di-tert-butyl-phenyls) phosphite esters.
Preferably, the lubricant is solid paraffin, atoleine, stearic amide, methylene bis stearic amide, N, N-
At least one of ethylene bis stearic acid amide, silicone oil.
A kind of preparation method of acrylic resin composite material, comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, antioxidant, optothermal stabilizer
It is uniform with mix lubricant, obtain mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 200~240 DEG C, and screw speed is 100~500r/min.
Preferably, the screw speed is 400~500r/min.
The present invention provides a kind of acrylic resin composite material and preparation method thereof, and advantage is compared with prior art：
Acrylic resin composite material of the present invention have the characteristics that function admirable, mechanical property preferably, easy processing shaping, especially
It is that the proof stress blushing of material is controlled, make its to mechanical property, appearance property etc. require it is multiple by
The field of force, which is closed, to be used, and cannot be only used for forming requirements material and the product of appearance is repeatedly being kept by external force；And it can be used for
The product scope of a variety of colors and other modification purposes；
Raw material of the present invention selects ethylene-vinyl acetate copolymer, and ethylene-vinyl acetate copolymer, which can absorb resin, to be subject to
The crazing that external force generates when acting on, and then avoid generating a large amount of small crackles, it can prevent the further development of crackle, then match somebody with somebody
Raw material barite is closed, under the collective effect of ethylene-vinyl acetate copolymer and barite, acrylic resin can be significantly improved
The stress resistance energy of material slows down the generation for the stress whitening phenomenon for even preventing acrylic resin；And the addition of barite
It can be with the mechanical strength of reinforcing material；
The present invention using twin screw extrusion process prepares acrylic resin composite material, have flow it is simple, it is continuous, produce
The advantages of efficient, product quality is stablized, the acrylic resin of preparation can be used for the occasion for being often subject to external force, expand poly- third
The application field and scope of olefine resin material.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
All other embodiments obtained under the premise of the property made work, belong to the scope of protection of the invention.
The quantitative measurement standard that prepared acrylic resin composite material progress proof stress whitens in embodiment is shown in
Table 1.
Wherein proof stress whitens performance test methods：It is the plastic square that size is 250mm*200mm*2mm by material injection
Plate, 500g steel balls fall from 1 meter of height and pound onto plastics square plate, see the apparent state of blush of model.
Stress crack resistance performance test method：Material is molded into dumbbell shape batten by ASTM D638, it is curved with fixed angle
Folding, and fixes its both ends, and glacial acetic acid or acetone are smeared in its stress raiser, observe by solvent etched to the time cracked with
State.
The quantitative measurement standard that 1 product proof stress of table whitens
| Physical property | Test method |
| Tensile strength | ASTM D638 |
| Izod notch impact strengths (izodtest) | ASTM D256 |
| Izod unnotched impact strengths (izodtest) | ASTM D256 |
| Density | ASTM D792 |
| Proof stress whitens performance | Company standard |
| Stress crack resistance performance | Company standard |
In terms of raw material：
Acrylic resin selects under the conditions of 230 DEG C/2.16Kg melt index as 40~100g/10min's in embodiment
Acrylic resin；
It is the second of 5~15g/10min that ethylene-vinyl acetate copolymer, which selects the melt index under the conditions of 220 DEG C/10Kg,
Alkene-acetate ethylene copolymer；
Embodiment 1：
The present embodiment acrylic resin composite material is made of the raw material of following parts by weight：85 parts of acrylic resin, ethylene-
15 parts of acetate ethylene copolymer, 5 parts of barite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters 0.2
Part, 0.3 part of optothermal stabilizer, 0.1 part of stearic amide；
Wherein optothermal stabilizer is by β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid and three
[2.4- di-tert-butyl-phenyls] phosphite ester forms, and β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyl) propionic acid
Mass ratio with three [2.4- di-tert-butyl-phenyls] phosphite esters is 1:2；
According to the present embodiment parts by weight of raw materials, the preparation method of acrylic resin composite material comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyls) propionic acid] pentaerythritol ester, optothermal stabilizer and stearic amide be uniformly mixed, obtain mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 240 DEG C, screw speed 400r/min.
Acrylic resin compound manufactured in the present embodiment is molded into the standard batten of test, performance by standard size
Test result is as shown in table 2.
Embodiment 2：
The present embodiment acrylic resin composite material is made of the raw material of following parts by weight：98 parts of acrylic resin, ethylene-
2 parts of acetate ethylene copolymer, 10 parts of barite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters 0.5
Part, 0.6 part of optothermal stabilizer, 0.5 part of silicone oil；
Wherein optothermal stabilizer is made of the double lauryl alcohol esters of thio-2 acid and di-n-butyltin dilaurate, and thio
The mass ratio of the double lauryl alcohol esters of dipropionic acid and di-n-butyltin dilaurate is 1:1；
According to the present embodiment parts by weight of raw materials, the preparation method of acrylic resin composite material comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyls) propionic acid] pentaerythritol ester, optothermal stabilizer and silicone oil is uniformly mixed, obtain mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 200 DEG C, screw speed 500r/min.
Acrylic resin compound manufactured in the present embodiment is molded into the standard batten of test, performance by standard size
Test result is as shown in table 2.
Embodiment 3：
The present embodiment acrylic resin composite material is made of the raw material of following parts by weight：90 parts of acrylic resin, ethylene-
10 parts of acetate ethylene copolymer, 30 parts of barite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters 1
Part, 0.1 part of optothermal stabilizer, N, 1 part of N- ethylene bis stearic acid amides；
Wherein optothermal stabilizer is made of the double lauryl alcohol esters of thio-2 acid and 2,6- three-level butyl -4- methylphenols,
And the mass ratio of the double lauryl alcohol esters of thio-2 acid and 2,6- three-level butyl -4- methylphenols is 2:1；
According to the present embodiment parts by weight of raw materials, the preparation method of acrylic resin composite material comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyls) propionic acid] pentaerythritol ester, optothermal stabilizer and N, N- ethylene bis stearic acid amide be uniformly mixed, mixed
Close material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 210 DEG C, screw speed 300r/min.
Acrylic resin compound manufactured in the present embodiment is molded into the standard batten of test, performance by standard size
Test result is as shown in table 2.
Embodiment 4：
The present embodiment acrylic resin composite material is made of the raw material of following parts by weight：95 parts of acrylic resin, ethylene-
5 parts of acetate ethylene copolymer, 15 parts of barite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters 0.2
Part, 0.6 part of optothermal stabilizer, 0.5 part of lubricant；
Wherein lubricant by solid paraffin and atoleine according to mass ratio 1：1 composition；
Wherein optothermal stabilizer is made of di-n-butyltin dilaurate and maleic acid di-n-butyl tin, and tin dilaurate
The mass ratio of di-n-butyl tin and maleic acid di-n-butyl tin is 1:1；
According to the present embodiment parts by weight of raw materials, the preparation method of acrylic resin composite material comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyls) propionic acid] pentaerythritol ester, optothermal stabilizer and mix lubricant it is uniform, obtain mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 230 DEG C, screw speed 200r/min.
Acrylic resin compound manufactured in the present embodiment is molded into the standard batten of test, performance by standard size
Test result is as shown in table 2.
Embodiment 5：
The present embodiment acrylic resin composite material is made of the raw material of following parts by weight：80 parts of acrylic resin, ethylene-
20 parts of acetate ethylene copolymer, 10 parts of barite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
0.2 part, 1 part of optothermal stabilizer, 0.6 part of silicone oil；
Wherein optothermal stabilizer is made of Bis(lauroyloxy)dioctyltin and dimercapto 2-ethyl hexyl ethanoate dioctyltin,
And the mass ratio of Bis(lauroyloxy)dioctyltin and dimercapto 2-ethyl hexyl ethanoate dioctyltin is 1:2；
According to the present embodiment parts by weight of raw materials, the preparation method of acrylic resin composite material comprises the following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyls) propionic acid] pentaerythritol ester, optothermal stabilizer and mix lubricant it is uniform, obtain mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein twin-screw extrusion
Machine extruder temperature is 220 DEG C, screw speed 100r/min.
Acrylic resin composite material manufactured in the present embodiment is molded into the standard batten of test, property by standard size
Energy test result is as shown in table 2.
Comparative example：
The acrylic resin that melt index is 40~100g/10min under the conditions of 230 DEG C/2.16Kg is directly pressed into standard
Size is molded into the standard batten of test, and the performance test results are as shown in table 2.
The different properties of sample tests of table 2
As can be seen from Table 2, the mechanical strength of acrylic resin composite material prepared by 1-5 of the embodiment of the present invention is substantially high
The mechanical strength of polyacrylic resin material in comparative example；And the resistance to stress of the polyacrylic resin material of the invention prepared is whitened
Better performances.
In conclusion the present invention selects ethylene-vinyl acetate copolymer as raw material, ethylene-vinyl acetate copolymer energy
The crazing that resin is generated when external force is subject to act on is absorbed, and then avoids generating a large amount of small crackles, can prevent crackle
Further development, then coordinate raw material barite, under the collective effect of ethylene-vinyl acetate copolymer and barite, Ke Yiming
The aobvious stress resistance energy for improving polyacrylic resin material slows down the generation for the stress whitening phenomenon for even preventing acrylic resin；
And the addition of barite can be with the mechanical strength of reinforcing material；
The present invention using twin screw extrusion process prepares acrylic resin composite material, have flow it is simple, it is continuous, produce
The advantages of efficient, product quality is stablized, the acrylic resin of preparation can be used for the occasion for being often subject to external force, expand poly- third
The application field and scope of olefine resin material.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
The present invention is described in detail according to previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent substitution is carried out to which part technical characteristic；And
These modifications are replaced, and the essence of appropriate technical solution is not made to depart from the spirit and model of various embodiments of the present invention technical solution
It encloses.
Claims (10)
1. a kind of acrylic resin composite material, which is characterized in that the acrylic resin composite material is by following parts by weight
Raw material is made：80~98 parts of acrylic resin, 2~20 parts of ethylene-vinyl acetate copolymer, 5~30 parts of barite, antioxidant
0.2~1 part, 0.1~1 part of optothermal stabilizer, 0.1~1 part of lubricant.
2. acrylic resin composite material according to claim 1, it is characterised in that：The ethene-vinyl acetate copolymerization
Object melt index under the conditions of 220 DEG C/10Kg is 5~15g/10min.
3. acrylic resin composite material according to claim 1, it is characterised in that：The acrylic resin 230 DEG C/
Melt index is 40~100g/10min under the conditions of 2.16Kg.
4. acrylic resin composite material according to claim 1, it is characterised in that：The antioxidant is four [β-(3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.
5. acrylic resin composite material according to claim 1, it is characterised in that：The optothermal stabilizer is monothioester
At least one in type thermal stabilizing agent, organic tin heat stabilizer, hindered amine, hindered phenol, diphenyl phosphite, triphenyl phosphite
Kind.
6. acrylic resin composite material according to claim 5, it is characterised in that：The monothioester type thermal stabilizing agent is
The double lauryl alcohol esters of thio-2 acid, the double octadecyls of thio-2 acid, the double tridecanol esters of thio-2 acid or thio-2 acid are double
Tetradecyl alchohol ester；The organic tin heat stabilizer is one kind in pink salt containing mercaptan, maleic acid pink salt or pant tin carboxylate；It is described by
Resistance amine is one kind in naphthylamines, diphenylamines or p-phenylenediamine.
7. acrylic resin composite material according to claim 5, it is characterised in that：The hindered phenol is 2,6- three-level fourths
It is base -4- methylphenols, double（3,5- three-level butyl -4- hydroxy phenyls）Thioether, four (β-(3,5- three-level butyl -4- hydroxy phenyls)
Propionic acid) pentaerythritol ester or β-（3,5- di-tert-butyl-hydroxy phenyls）One kind in the positive octadecanol ester of propionic acid；The phosphorous
Triphenyl phosphate ester is three (2.4- di-tert-butyl-phenyls) phosphite esters.
8. acrylic resin composite material according to claim 1, it is characterised in that：The lubricant for solid paraffin,
Atoleine, stearic amide, methylene bis stearic amide, at least one of N, N- ethylene bis stearic acid amides, silicone oil.
A kind of 9. preparation method of acrylic resin composite material as described in claim 1~8 is any, which is characterized in that bag
Include following steps：
S1, by the acrylic resin of parts by weight, ethylene-vinyl acetate copolymer, barite, antioxidant, optothermal stabilizer and profit
Lubrication prescription is uniformly mixed, and obtains mixed material；
S2, by mixed material add in double screw extruder in extruding pelletization to get acrylic resin, wherein double screw extruder spiral shell
Bar temperature is 200~240 DEG C, and screw speed is 100~500 r/min.
10. preparation method according to claim 9, it is characterised in that：The screw speed is 400~500 r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611016622.9A CN108070146A (en) | 2016-11-18 | 2016-11-18 | A kind of acrylic resin composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611016622.9A CN108070146A (en) | 2016-11-18 | 2016-11-18 | A kind of acrylic resin composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115785563A (en) * | 2022-12-02 | 2023-03-14 | 会通新材料股份有限公司 | Antibacterial insect-repelling polypropylene material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206376A (en) * | 2010-03-31 | 2011-10-05 | 上海金发科技发展有限公司 | Polypropylene material filled with inorganic mineral powder, and its preparation method and application |
| CN103709516A (en) * | 2013-12-26 | 2014-04-09 | 宁波波尔管业开发有限公司 | High-strength polypropylene cable protection sleeve material and preparation method thereof |
-
2016
- 2016-11-18 CN CN201611016622.9A patent/CN108070146A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206376A (en) * | 2010-03-31 | 2011-10-05 | 上海金发科技发展有限公司 | Polypropylene material filled with inorganic mineral powder, and its preparation method and application |
| CN103709516A (en) * | 2013-12-26 | 2014-04-09 | 宁波波尔管业开发有限公司 | High-strength polypropylene cable protection sleeve material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115785563A (en) * | 2022-12-02 | 2023-03-14 | 会通新材料股份有限公司 | Antibacterial insect-repelling polypropylene material and preparation method thereof |
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Application publication date: 20180525 |