CN113861414A - Self-cleaning transparent nylon material for shielding radioactive rays and preparation method thereof - Google Patents
Self-cleaning transparent nylon material for shielding radioactive rays and preparation method thereof Download PDFInfo
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- CN113861414A CN113861414A CN202111273266.XA CN202111273266A CN113861414A CN 113861414 A CN113861414 A CN 113861414A CN 202111273266 A CN202111273266 A CN 202111273266A CN 113861414 A CN113861414 A CN 113861414A
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- 239000004677 Nylon Substances 0.000 title claims abstract description 32
- 229920001778 nylon Polymers 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000002285 radioactive effect Effects 0.000 title claims description 12
- 229910001385 heavy metal Inorganic materials 0.000 claims description 14
- -1 aliphatic diamine Chemical class 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000012266 salt solution Substances 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 5
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004246 zinc acetate Substances 0.000 claims description 4
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 2
- JZUMVFMLJGSMRF-UHFFFAOYSA-N 2-Methyladipic acid Chemical compound OC(=O)C(C)CCCC(O)=O JZUMVFMLJGSMRF-UHFFFAOYSA-N 0.000 claims description 2
- XJTIXHIGJIUSGL-UHFFFAOYSA-N 2-methylhexane-1,1-diamine Chemical compound NC(C(CCCC)C)N XJTIXHIGJIUSGL-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 2
- ITHZDDVSAWDQPZ-UHFFFAOYSA-L barium acetate Chemical compound [Ba+2].CC([O-])=O.CC([O-])=O ITHZDDVSAWDQPZ-UHFFFAOYSA-L 0.000 claims description 2
- RGTXVXDNHPWPHH-UHFFFAOYSA-N butane-1,3-diamine Chemical compound CC(N)CCN RGTXVXDNHPWPHH-UHFFFAOYSA-N 0.000 claims description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 229940046892 lead acetate Drugs 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 150000004984 aromatic diamines Chemical class 0.000 claims 2
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 125000001153 fluoro group Chemical group F* 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- WVFZPKYHJCLEET-UHFFFAOYSA-N 2-fluorobutanedioic acid Chemical compound OC(=O)CC(F)C(O)=O WVFZPKYHJCLEET-UHFFFAOYSA-N 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920003231 aliphatic polyamide Polymers 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- XBURULYKNHWGIF-UHFFFAOYSA-N 2-fluorohexanedioic acid Chemical compound OC(=O)CCCC(F)C(O)=O XBURULYKNHWGIF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/04—Preparatory processes
Abstract
The invention discloses a radiation-shielding self-cleaning transparent nylon material and a preparation method thereof.
Description
Technical Field
The invention relates to a radioactive ray shielding self-cleaning transparent nylon material and a preparation method thereof, belonging to the field of preparation of high polymer materials.
Background
The transparent nylon has high light transmittance, is similar to optical glass, has high barrier property and excellent boiling resistance, and has the permeability to oxygen of 1/20-1/25 of PET; the permeability to carbon dioxide is 1/5 for PET; the water permeability is equivalent to that of PET, not only can be used for packaging beverages and foods, but also can be used as packaging materials of precision instruments, instruments and pharmaceutical chemicals, and can be used for producing damp-proof and shock-absorbing cushions, foamed plates and the like, and the water-permeable PET packaging material has good tensile strength, impact strength, rigidity, wear resistance, chemical resistance, surface hardness and other properties.
High strength, water resistance, radiation protection, high light transmittance nylon is required in the aerospace, radiotherapy and other industries, while conventional transparent nylon is metal-free nylon, and therefore, the preparation of metal-containing transparent nylon to shield radioactivity is a very useful key material. The introduction of metal salt "ionic" segments into polymer molecular chains has attracted a great deal of interest and also has given important functional effects to materials. Heavy metals exhibit outstanding absorption and dissipation properties for radiation due to their large proton ratio and extra-nuclear multi-electron shell structure. Conventionally, as metals for protecting radiation, there are heavy metals such as Pb, Al, Ti, Mg, Cr, Ba, and Fe. The introduction of heavy metal into transparent nylon can prepare polymer material with radiation-proof performance and optical transparency, and the two functions are organically combined together, thus having wide development prospect in gradually replacing ray-proof inorganic transparent material and the like.
The nylon material structure contains amido bonds, so that water vapor is easily absorbed, and water molecules are soaked on the surface of the nylon material. When light is transmitted, scattering easily occurs, and the light transmittance is lowered. When polar atoms are introduced into the nylon material, the interference of water vapor in the nylon material can be reduced. Therefore, the radiation shielding self-cleaning transparent nylon material is constructed in the aspects of network structure, preparation materials, process and the like.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a self-cleaning transparent nylon material for shielding radioactive rays and a preparation method thereof.
A preparation method of a radioactive ray shielding self-cleaning transparent nylon material comprises the following steps:
1) dissolving 0.01-0.05 part by mass of heavy metal salt, 0.8-1.2 parts by mass of aliphatic diamine, 0.4-0.7 part by mass of aliphatic dibasic acid, 0.5-0.9 part by mass of aromatic dibasic acid, 0.1-1 part by mass of cyclane diamine and 0.01-0.05 part by mass of fluorine atom-containing dibasic acid in 1.5-3.5 parts by mass of water, and heating and dissolving to form a colorless and transparent solution to obtain a salt solution;
2) adding the salt solution obtained in the step 1) into a polymerization kettle, and carrying out prepolymerization at the temperature of 180 ℃ and 250 ℃ for 1-3 hours; the temperature is increased to 250 ℃ and 280 ℃ for polymerization for 60 to 90 minutes;
3) when the viscosity is between 1.8 and 2.3, pressurizing and injecting nitrogen, increasing the pressure in the kettle to 0.6 to 0.7Mpa, extruding and discharging, and pelletizing to obtain the radioactive ray shielding self-cleaning transparent nylon material.
Further, the heavy metal salt in the step 1) is one of barium acetate, lead acetate and zinc acetate.
Further, the dibasic acid containing the fluorine atom in the step 1) is one of 2-fluoro-succinic acid, 1-fluoro-acetic acid and 2-fluoro-adipic acid.
Further, the aliphatic diamine in the step 1) is one of 1, 3-butanediamine, decanediamine, 2-methyl-hexanediamine and 2, 2-dimethylcyclohexanediamine.
Further, the aliphatic dibasic acid in the step 1) is one of succinic acid, glutaric acid, adipic acid, sebacic acid and 2-methyl-adipic acid.
Further, the cycloalkane diamine in the step 1) is 2, 2-dimethylcyclohexanediamine.
Further, the aromatic dibasic acid in the step 1) is isophthalic acid.
Further, the heating temperature in the step 1) is 40-70 ℃, and the heating time is 0.5-1.5 hours.
Has the advantages that:
(1) the radiation shielding self-cleaning transparent nylon material is creatively prepared from heavy metal salt, fluorine atom-containing dibasic acid, aliphatic diamine, aromatic dibasic acid and cyclane diamine, and the viscosity of the heavy metal shielding polyamide can be controlled by adjusting the content of the heavy metal shielding salt, the pH value of the salt, a polymerization process and modification. The prepared radioactive ray shielding self-cleaning transparent nylon material comprises heavy metal coordination aromatic polyamide and heavy metal coordination aliphatic polyamide, wherein a network component containing the heavy metal coordination aliphatic polyamide is grafted in the component structure of the heavy metal coordination aromatic polyamide to form a coordination crosslinking and crystalline radioactive ray shielding functional transparent nylon material.
(2) The radiation-shielding self-cleaning transparent nylon material has the functions of high transparency, easy processability, radiation shielding and easy infiltration, and can be applied to the aspects of engine accessories, reflow soldering and the like.
(3) The radiation shielding self-cleaning transparent nylon material prepared by the invention has the advantages of simple process, easy control and convenient operation, and is suitable for large-scale industrial production.
Detailed Description
In order to make the technical solutions in the present application better understood, the present invention is further described below with reference to examples, which are only a part of examples of the present application, but not all examples, and the present invention is not limited by the following examples.
Example 1
Accurately weighing 0.8 part by mass of hexamethylene diamine, 0.4 part by mass of isophthalic acid, 0.01 part by mass of zinc acetate and 0.01 part by mass of 2-fluoro-succinic acid, adjusting the pH value of the solution to 7.0, and heating for 1 hour to form a colorless transparent solution;
(2) adding the colorless transparent salt solution prepared in the step (1) into a polymerization kettle, and carrying out prepolymerization for 3 hours at 220 ℃ to form polyamide with small molecular weight; heating to 280 ℃ for secondary polymerization for 60 minutes; and (3) flushing nitrogen gas at about 285 ℃, and stretching and cutting into granules after pressurization to form the radioactive ray shielding self-cleaning transparent nylon material.
(3) Modification: putting the resin and the antioxidant in a stirrer, and then feeding the mixture into an extruder for granulation.
Second, result analysis
The melting point of the transparent nylon is about 235 ℃, and the polyamide sample strip is detected according to the national standard (GB/T1043-2008): the tensile strength is about 43MPa, the bending strength is about 45MPa, and the notch impact strength (23 ℃) is more than or equal to 10.5 KJ/square meter. The nylon resin with the thickness of 3mm shows good shielding performance on X-ray, has certain absorption capacity on gamma-ray and ultraviolet rays, and has certain wettability on water.
Example 2
(1) Accurately weighing 0.8 part by mass of 2, 2-dimethylcyclohexanediamine, 0.4 part by mass of isophthalic acid, 0.8 part by mass of decamethylenediamine, 0.01 part by mass of zinc acetate and 0.01 part by mass of 1-fluoro-acetic acid, adjusting the pH of the solution to 7.0, and heating for 1 hour to form a colorless transparent solution;
(2) adding the colorless transparent salt solution prepared in the step (1) into a polymerization kettle, and carrying out prepolymerization for 3 hours at 220 ℃ to form polyamide with small molecular weight; heating to 280 ℃ for secondary polymerization for 60 minutes; injecting nitrogen gas at about 285 ℃, bracing after pressurizing, and cutting into granules to form the transparent nylon material with the function of shielding radioactive rays
(3) Modification: putting the resin and the antioxidant in a stirrer, and then feeding the mixture into an extruder for granulation.
Second, result analysis
The melting point of the transparent nylon is about 225 ℃, and the polyamide sample strip is detected according to the national standard (GB/T1043-2008): the tensile strength is about 46MPa, the bending strength is about 48MPa, and the notch impact strength (23 ℃) is more than or equal to 102KJ per square meter. The nylon resin with the thickness of 3mm shows good shielding performance on X-ray, has certain absorption capacity on gamma-ray and has certain wettability on water.
Claims (8)
1. A preparation method of a radioactive ray shielding self-cleaning transparent nylon material is characterized by comprising the following steps:
1) dissolving 0.01-0.05 part by mass of heavy metal salt, 0.8-1.2 parts by mass of aliphatic diamine, 0.4-0.7 part by mass of aliphatic dibasic acid, 0.5-0.9 part by mass of aromatic dibasic acid and 0.1-1 part by mass of aromatic diamine in 1.5-3.5 parts by mass of water, and heating and dissolving to form a colorless and transparent solution to obtain a salt solution;
2) adding the salt solution obtained in the step 1) into a polymerization kettle, and carrying out prepolymerization at the temperature of 180 ℃ and 250 ℃ for 1-3 hours; the temperature is increased to 250 ℃ and 280 ℃ for polymerization for 60 to 90 minutes;
3) when the viscosity is between 1.8 and 2.3, pressurizing and injecting nitrogen, increasing the pressure in the kettle to 0.6 to 0.7Mpa, extruding and discharging, and pelletizing to obtain the radioactive ray shielding self-cleaning transparent nylon material.
2. The method of claim 1, wherein the heavy metal salt in step 1) is one of barium acetate, lead acetate, and zinc acetate.
3. The method according to claim 1, wherein the aliphatic diamine in step 1) is one of 1, 3-butanediamine, decanediamine, 2-methyl-hexanediamine and 2, 2-dimethylcyclohexanediamine.
4. The method according to claim 1, wherein the aliphatic dibasic acid in step 1) is one of succinic acid, glutaric acid, adipic acid, sebacic acid, and 2-methyl-adipic acid.
5. The method according to claim 1, wherein the aromatic diamine in the step 1) is m-xylylenediamine.
6. The method according to claim 1, wherein the aromatic dibasic acid in the step 1) is isophthalic acid.
7. The method according to claim 1, wherein the heating in step 1) is carried out at a temperature of 40 to 70 ℃ for 0.5 to 1.5 hours.
8. The radiation-shielding self-cleaning transparent nylon material prepared by the preparation method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273266.XA CN113861414A (en) | 2021-10-29 | 2021-10-29 | Self-cleaning transparent nylon material for shielding radioactive rays and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273266.XA CN113861414A (en) | 2021-10-29 | 2021-10-29 | Self-cleaning transparent nylon material for shielding radioactive rays and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113861414A true CN113861414A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111273266.XA Pending CN113861414A (en) | 2021-10-29 | 2021-10-29 | Self-cleaning transparent nylon material for shielding radioactive rays and preparation method thereof |
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| Country | Link |
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| CN (1) | CN113861414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115873239A (en) * | 2022-11-11 | 2023-03-31 | 川化集团有限责任公司 | Preparation method of copolymerization modified PA10T and modified PA10T copolymer thereof |
| CN116063686A (en) * | 2023-01-04 | 2023-05-05 | 万华化学集团股份有限公司 | Alcohol-scratch-resistant transparent nylon and preparation method thereof |
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| CN110092906A (en) * | 2019-05-30 | 2019-08-06 | 辰东意普万新材料(广东)有限公司 | Copolymerization transparent nylon and preparation method thereof |
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| CN111635520A (en) * | 2020-06-19 | 2020-09-08 | 山东东辰瑞森新材料科技有限公司 | High-temperature-resistant polyamide material and preparation method thereof |
| CN112210148A (en) * | 2020-10-13 | 2021-01-12 | 中广核高新核材科技（苏州）有限公司 | Radiation-proof high-integrity container and preparation method thereof |
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2021
- 2021-10-29 CN CN202111273266.XA patent/CN113861414A/en active Pending
Patent Citations (5)
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| CN106928701A (en) * | 2015-12-29 | 2017-07-07 | 上海杰事杰新材料(集团)股份有限公司 | A kind of high temperature resistant nylon base X-ray shield composite and preparation method thereof |
| CN110092906A (en) * | 2019-05-30 | 2019-08-06 | 辰东意普万新材料(广东)有限公司 | Copolymerization transparent nylon and preparation method thereof |
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| CN115873239A (en) * | 2022-11-11 | 2023-03-31 | 川化集团有限责任公司 | Preparation method of copolymerization modified PA10T and modified PA10T copolymer thereof |
| CN116063686A (en) * | 2023-01-04 | 2023-05-05 | 万华化学集团股份有限公司 | Alcohol-scratch-resistant transparent nylon and preparation method thereof |
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Application publication date: 20211231 |