CN110172147B - Copolymerized transparent nylon and preparation method thereof - Google Patents
Copolymerized transparent nylon and preparation method thereof Download PDFInfo
- Publication number
- CN110172147B CN110172147B CN201910466264.9A CN201910466264A CN110172147B CN 110172147 B CN110172147 B CN 110172147B CN 201910466264 A CN201910466264 A CN 201910466264A CN 110172147 B CN110172147 B CN 110172147B
- Authority
- CN
- China
- Prior art keywords
- component
- nylon
- weight
- transparent
- copolymerized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/36—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino acids, polyamines and polycarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
The application provides a copolymerized transparent nylon and a preparation method thereof, wherein the copolymerized transparent nylon is polymerized by the following components: 60-90 wt% of component A: a lactam; 5-20% by weight of a component B: a mixture of hexamethylenediamine and an aromatic dibasic acid in a molar ratio of 1:1, wherein the aromatic dibasic acid is terephthalic acid or isophthalic acid; 5-20% by weight of a component C: a mixture of an aliphatic dibasic acid and an alicyclic diamine in a molar ratio of 1: 1. The high-temperature-resistant, chemical-resistant and high-transparency copolymerized nylon with the microcrystalline structure is obtained by polymerizing 60-90 wt% of the component A, 5-20 wt% of the component B and 5-20 wt% of the component C, has a clear melting point, light transmittance of 70-95%, haze of 1-20% and a melting point of 160-210 ℃, and has a good chemical resistance, and the thermal deformation temperature of the glass fiber after reinforcement reaches 120-200 ℃.
Description
Technical Field
The application relates to nylon products, in particular to a copolymerized transparent nylon and a preparation method thereof.
Background
Polyamide was applied for in the 30's of the 20 th century by wales carousels, dupont, usa. The polyamide has the excellent characteristics of high mechanical strength, good impact resistance, excellent high temperature resistance, wear resistance, oil resistance and the like, is widely applied to machinery and chemical industry, and plays an important role in the national economy fields of water conservancy, national defense, traffic and the like.
However, nylon has poor transparency and is difficult to work in some fields requiring high transparency of materials. Therefore, research on transparent nylon is widely developed at home and abroad. Transparent nylon is generally an amorphous polymer with similar light transmittance to optical glass and is widely used in the aerospace industry, automotive manufacturing, electrical industry, medical sector, food packaging, engineering and mechanical parts, offshore operations sector, sports and Hi-Fi (high fidelity)/video/microgroove floppy disk sector.
In the prior art, the synthesized transparent polyamide mainly comprises aliphatic transparent polyamide, aromatic transparent polyamide and semi-aromatic transparent polyamide. The aliphatic transparent polyamide is a random copolymer of aliphatic dibasic acid and diamine, such as nylon 6/66 copolymer, nylon 6/12 copolymer of Emer company, etc. However, random copolymerization of linear aliphatic monomers has limited disruption to the sequence regularity of the product, and the polyamide crystallizes at a high rate, making the process conditions difficult to control. The aromatic transparent polyamide and the semi-aromatic transparent polyamide have complicated process due to the existence of aromatic monomers. Therefore, there is a continuing need for improvements in transparent polyamides.
Content of application
In order to overcome the defects of the prior art, the application provides the copolymerized transparent nylon and the preparation method thereof, the copolymerized transparent nylon has a microcrystalline structure, has the advantages of high temperature resistance and chemical resistance of a crystalline material, has higher transparency, and has more excellent transparency and comprehensive performance compared with conventional nylon 6, nylon 66 and nylon 6/66 copolymers.
In order to achieve the above objects, the present application provides, in one aspect, a copolymerized transparent nylon polymerized from the following components:
60-90 wt% of component A: a lactam;
5-20% by weight of a component B: a mixture of hexamethylenediamine and an aromatic dibasic acid in a molar ratio of 1:1, wherein the aromatic dibasic acid is terephthalic acid or isophthalic acid;
5-20% by weight of a component C: a mixture of an aliphatic dibasic acid and an alicyclic diamine in a molar ratio of 1: 1.
The high-temperature-resistant, chemical-resistant and high-transparency copolymerized nylon with a microcrystalline structure is obtained by polymerizing 60-90 wt% of the component A, 5-20 wt% of the component B and 5-20 wt% of the component C, has a clear melting point, and achieves good balance in the aspects of transparency and high temperature resistance. The inventor finds that the formation of the microcrystalline structure depends on several key factors, one is the molecular size, the other is the chemical structure, the third is the matching degree of the size of the crystal nucleus and the molecular structure, and if the molecular size is too small, larger steric hindrance cannot be realized, and an amorphous region with a sufficient proportion required by transparency cannot be formed; too large molecular size causes a significant deterioration in crystallinity, and the material tends to be mainly amorphous, thereby losing the excellent properties of high temperature resistance, organic solvent resistance and the like inherent in crystalline materials. Based on this, the present inventors have polymerized using component a of lactam, component B of a mixture of hexamethylenediamine and an aromatic dibasic acid in a molar ratio of 1:1, and component C of a mixture of an aliphatic dibasic acid and an alicyclic diamine in a molar ratio of 1:1, to satisfy the balance of the above three factors.
In another aspect, the present application provides a method for preparing a copolymerized transparent nylon, comprising the following steps:
1) inputting the component A, the component B and the component C into a polymerization kettle, and heating and stirring the components in the polymerization kettle to perform dehydration reaction;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
During the polymerization reaction of the component A, the component B and the component C, water can be efficiently discharged out of a reaction system in a short time by heating and stirring and carrying out dehydration reaction, so that the reaction rate is improved, and the generation of amido bonds is promoted to form the macromolecular nylon.
Detailed Description
The technical solutions of the present application are further described below by the specific embodiments, but the present application is not limited thereto.
The application provides a copolymerized transparent nylon which is polymerized by the following components:
60-90 wt% of component A: a lactam;
5-20% by weight of a component B: a mixture of hexamethylenediamine and an aromatic dibasic acid in a molar ratio of 1:1, wherein the aromatic dibasic acid is terephthalic acid or isophthalic acid;
5-20% by weight of a component C: a mixture of an aliphatic dibasic acid and an alicyclic diamine in a molar ratio of 1: 1.
The transparent copolymerized nylon has good transparency and high temperature resistance, the light transmittance is 70-95%, the haze is 1-20%, the melting point is 160-210 ℃, the thermal deformation temperature of the glass fiber reinforced nylon reaches 120-200 ℃, and the chemical resistance is good.
Further, the weight content of the component A is 80-90%, the weight content of the component B is 5-10%, and the weight content of the component C is 5-10%.
Further, the content of component a may be 60%, 65%, 70%, 75%, 80%, 85%, 90% by weight, the content of component B may be 5%, 8%, 10%, 13%, 15%, 17%, 20% by weight, and the content of component C may be 5%, 8%, 10%, 13%, 15%, 17%, 20% by weight.
Further, the lactam is at least one of Caprolactam (CPL) and lauryllactam (LLA). The aliphatic dibasic acid is adipic acid. The alicyclic diamine is at least one of 4, 4' -diaminodicyclohexylmethane (PACM) and isophorone diamine (IPDA).
The application also provides a preparation method of the copolymerized transparent nylon, which comprises the following steps:
1) inputting the component A, the component B and the component C into a polymerization kettle, and heating and stirring the components in the polymerization kettle to perform dehydration reaction;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Further, the pressure in the polymerization kettle is 1-27 bar, and the temperature is 220-320 ℃. Specifically, the pressure can be 1bar, 5bar, 10bar, 15bar, 20bar, 25bar, and 27bar, and the temperature can be 220 deg.C, 250 deg.C, 280 deg.C, 300 deg.C, and 320 deg.C.
Hereinafter, the copolymerized nylon and the method for producing the same according to the present invention will be described in detail with reference to examples, and the raw materials in the examples are commercially available.
Example 1
The transparent copolymerized nylon is polymerized from the following components:
90% by weight of component A: caprolactam (CPL);
5% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
5% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 2
The transparent copolymerized nylon is polymerized from the following components:
85% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
5% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 3
The transparent copolymerized nylon is polymerized from the following components:
85% by weight of component A: caprolactam (CPL);
5% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 4
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: laurolactam (LLA);
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 5
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: a mixture of Caprolactam (CPL) and laurolactam (LLA) in a molar ratio of 1: 1;
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 6
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of hexamethylenediamine and isophthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 7
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and Isophoronediamine (IPDA) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 8
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and a cycloaliphatic diamine in a molar ratio of 1:1, the cycloaliphatic diamine being a mixture of 4, 4' -diaminodicyclohexylmethane (PACM) and Isophoronediamine (IPDA) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Example 9
The transparent copolymerized nylon is polymerized from the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of hexamethylenediamine and terephthalic acid in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 25bar and the temperature is 280 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Comparative example 1
The copolymerized nylon is polymerized by the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a mixture of adipic acid and m-xylylenediamine in a molar ratio of 1: 1;
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Comparative example 2
The copolymerized nylon is polymerized by the following components:
80% by weight of component A: caprolactam (CPL);
10% by weight of component B: a prepolymer of m-xylylene adipamide (MXD 6);
10% by weight of component C: a mixture of adipic acid and 4, 4' -diaminodicyclohexylmethane (PACM) in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A, the component B and the component C into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
Comparative example 3
The copolymerized nylon is polymerized by the following components:
80% by weight of component A: caprolactam (CPL);
20% by weight of component B: a mixture of adipic acid and hexamethylenediamine in a molar ratio of 1: 1.
The preparation method comprises the following steps:
1) inputting the component A and the component B into an automatic control polymerization kettle with a stirrer, and performing dehydration reaction under the conditions that the pressure of the polymerization kettle is 15bar and the temperature is 300 ℃;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
To further illustrate the properties of the copolymerized transparent nylon described herein, the applicant performed high temperature resistance, transparency and chemical resistance tests on the nylons prepared in examples 1 to 9 and comparative examples 1 to 3, respectively, wherein the high temperature resistance is characterized by melting point and heat resistance, and the transparency is characterized by light transmittance and haze of the nylon, and the test results are shown in table 1.
The test means is as follows:
melting point: the test was performed using method ISO 11357-3-2011 plastic-Differential Scanning Calorimetry (DSC), and the melting peak was recorded.
Heat resistance: the test was carried out by the method "method for measuring Heat distortion temperature under ISO 75-2 load", and the heat distortion temperature after 30% glass fiber reinforcement was recorded.
Transparency: the transparency of the nylon is characterized by testing the light transmittance and the haze by using a method of GB/T2410-2008 determination of the light transmittance and the haze of the transparent plastic.
Chemical resistance: after 20 rubs with alcohol cloth, see if the transparency is significantly reduced.
TABLE 1 results of respective performance tests of examples 1 to 9 and comparative examples 1 to 3
As can be seen from Table 1, the copolymerized nylon of the present invention has better overall properties in terms of high temperature resistance, transparency, and chemical resistance. The component B used in comparative example 1 was a mixture of adipic acid and m-xylylenediamine in a molar ratio of 1:1, and the component B used in comparative example 2 was a prepolymer of m-xylylene adipamide (MXD6), which all contained aromatic diamine, resulting in severe deterioration of crystallinity to give an amorphous material. Comparative example 3 is a conventional PA6/66 polymer, which is a random copolymerization of linear aliphatic monomers, with limited disruption of the polymer sequence regularity, and with a polyamide having a faster crystallization rate, and therefore poor transparency, and fails to meet the application end transparency requirements.
Compared with comparative examples 1-3, the component B in examples 1-9 is a mixture of hexamethylene diamine and aromatic dibasic acid in a molar ratio of 1:1, the aromatic dibasic acid is terephthalic acid or isophthalic acid, the component B, the component A and the component C are polymerized to obtain the high-temperature-resistant, chemical-resistant and high-transparency copolymerized nylon with a microcrystalline structure, the light transmittance of the copolymerized nylon is 70-95%, the haze of the copolymerized nylon is 1-20%, the melting point of the copolymerized nylon is 160-210 ℃, the thermal deformation temperature of the copolymerized nylon after glass fiber reinforcement reaches 120-200 ℃, and the chemical resistance of the copolymerized nylon is good.
It should be noted that the above specific examples are only for illustrating the present application and not for limiting the scope of the present application, and after reading the present application, those skilled in the art should be able to modify the various equivalent forms of the present application, such as replacing the content of each component, replacing the specific components of lactam, aliphatic dibasic acid, alicyclic diamine, etc., adjusting the preparation parameters, etc., within the scope of the present application, which is defined by the appended claims.
Claims (7)
1. The transparent copolymerized nylon is characterized by being polymerized from the following components:
60-90 wt% of component A: a lactam;
5-20% by weight of a component B: a mixture of hexamethylenediamine and an aromatic dibasic acid in a molar ratio of 1:1, wherein the aromatic dibasic acid is terephthalic acid or isophthalic acid;
5-20% by weight of a component C: a mixture of aliphatic dibasic acid and alicyclic diamine in a molar ratio of 1:1,
the light transmittance is 70-95%, the melting point is 160-210 ℃, and the thermal deformation temperature of the glass fiber reinforced plastic reaches 120-200 ℃.
2. The copolymerized transparent nylon of claim 1, wherein the component A is 80 to 90% by weight, the component B is 5 to 10% by weight, and the component C is 5 to 10% by weight.
3. The co-transparent nylon of claim 1, wherein the lactam is at least one of caprolactam and lauryllactam.
4. The copolymeric transparent nylon of claim 1, wherein the aliphatic dibasic acid is adipic acid.
5. The copolymeric transparent nylon of claim 1, wherein the cycloaliphatic diamine is at least one of 4, 4' -diaminodicyclohexylmethane and isophoronediamine.
6. The method for preparing transparent copolymerized nylon of any one of claims 1 to 5, comprising the steps of:
1) inputting the component A, the component B and the component C into a polymerization kettle, and heating and stirring the components in the polymerization kettle to perform dehydration reaction;
2) and after the reaction, injecting nitrogen to discharge water generated by the reaction, then pressurizing to discharge the transparent copolymerized nylon melt, and carrying out die head belt casting molding on the melt, and cooling and pelletizing to obtain the nylon melt.
7. The method of claim 6, wherein the pressure in the polymerization vessel is 1 to 27bar and the temperature is 220 to 320 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466264.9A CN110172147B (en) | 2019-05-30 | 2019-05-30 | Copolymerized transparent nylon and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466264.9A CN110172147B (en) | 2019-05-30 | 2019-05-30 | Copolymerized transparent nylon and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110172147A CN110172147A (en) | 2019-08-27 |
| CN110172147B true CN110172147B (en) | 2021-09-28 |
Family
ID=67696836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910466264.9A Active CN110172147B (en) | 2019-05-30 | 2019-05-30 | Copolymerized transparent nylon and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110172147B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI727738B (en) * | 2020-04-14 | 2021-05-11 | 中國石油化學工業開發股份有限公司 | Transparent copolyamide and the preparing method thereof |
| CN112574406A (en) * | 2020-12-15 | 2021-03-30 | 广州辰东新材料有限公司 | Transparent nylon with high infrared transmittance and preparation method thereof |
| CN112679729A (en) * | 2020-12-15 | 2021-04-20 | 广州辰东新材料有限公司 | Transparent nylon material and preparation method thereof |
| CN113461934A (en) * | 2021-06-18 | 2021-10-01 | 山东东辰瑞森新材料科技有限公司 | High-melting-point transparent nylon material and preparation method thereof |
| CN115403923A (en) * | 2022-09-06 | 2022-11-29 | 董泽民 | Transparent flame-retardant nylon and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910877A (en) * | 2012-12-31 | 2014-07-09 | 中国科学院化学研究所 | Transparent polyamide and preparation method thereof |
| CN104031264A (en) * | 2014-06-25 | 2014-09-10 | 东莞市意普万尼龙科技股份有限公司 | Transparent copolymer nylon and preparation method thereof |
| CN104974342A (en) * | 2014-12-02 | 2015-10-14 | 淮安市欣佳尼龙有限公司 | Preparation method of transparent nylon 610, and toothbrush bristles |
-
2019
- 2019-05-30 CN CN201910466264.9A patent/CN110172147B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910877A (en) * | 2012-12-31 | 2014-07-09 | 中国科学院化学研究所 | Transparent polyamide and preparation method thereof |
| CN104031264A (en) * | 2014-06-25 | 2014-09-10 | 东莞市意普万尼龙科技股份有限公司 | Transparent copolymer nylon and preparation method thereof |
| CN104974342A (en) * | 2014-12-02 | 2015-10-14 | 淮安市欣佳尼龙有限公司 | Preparation method of transparent nylon 610, and toothbrush bristles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110172147A (en) | 2019-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110172147B (en) | Copolymerized transparent nylon and preparation method thereof | |
| US8022170B2 (en) | Copolyamides | |
| CN105061755B (en) | A kind of preparation method of semi-aromatic nylon | |
| EP3004210B1 (en) | Polyamides comprising me-bht, compositions comprising such a polyamide, shaped articles comprising such a polyamide or such a composition | |
| US10017609B2 (en) | Batch process for preparing polyamides | |
| US9376535B2 (en) | Branched polyamide with different blocks | |
| JP4653491B2 (en) | Copolyamide | |
| US8334359B2 (en) | Modified polyamide, method for preparing same, and article obtained from said polyamide | |
| CN105085903A (en) | High-temperature-resistant branched polyamide block copolymer and preparation method thereof | |
| US9321888B2 (en) | Branched polyamide | |
| JPH0253823A (en) | Production of block copolyamide | |
| WO2019121823A1 (en) | Piperidine-containing semi-aromatic polyamide | |
| CN110092906A (en) | Copolymerization transparent nylon and preparation method thereof | |
| JPS61200123A (en) | Manufacture of cocondensated polyamide | |
| US9567434B2 (en) | Process for preparing PA-4X, and PA-410 obtainable by the process | |
| US8822631B2 (en) | Process for the production of PA-410 and PA-410 obtainable by that process | |
| CN110964197B (en) | Preparation method and application of rapid prototyping polyamide | |
| US20220306804A1 (en) | Method for producing high temperature-resistant polyamide, high temperature-resistant polyamide and use thereof | |
| CN117801264A (en) | Transparent long-chain polyamide and preparation method thereof | |
| EP3753970A1 (en) | Composition comprising piperidine-containing polyamide | |
| CN118684877A (en) | High-temperature-resistant semi-aromatic polyamide, preparation method, composition and molded product thereof | |
| CN112646173A (en) | Semi-aromatic polyamide resin and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |