Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6
Polyamide 6 (PA6) was modified with ethylene maleic anhydride syndiotactic copolymer resin (ZeMac), and triglycidyl isocyanurate (TGIC) as modifiers to prepare a grafting structure and a long-chain branching structure, respectively. The effects of two modifiers on the rheological behavior, crystalli...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-03-01
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| Series: | e-Polymers |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/epoly-2022-0030 |
| _version_ | 1818027441492328448 |
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| author | Cao Lushuai Jiang Tuanhui Liu Bujin Li Ming Zhang Di Gong Wei He Li |
| author_facet | Cao Lushuai Jiang Tuanhui Liu Bujin Li Ming Zhang Di Gong Wei He Li |
| author_sort | Cao Lushuai |
| collection | DOAJ |
| description | Polyamide 6 (PA6) was modified with ethylene maleic anhydride syndiotactic copolymer resin (ZeMac), and triglycidyl isocyanurate (TGIC) as modifiers to prepare a grafting structure and a long-chain branching structure, respectively. The effects of two modifiers on the rheological behavior, crystallization properties, foaming performance, and mechanical properties of PA6 were systematically studied by rotating rheometry, differential scanning calorimetry and scanning electron microscopy. The results showed that there were differences in crystallization properties between the two modification methods, but they significantly improved the rheological, foaming performance, and mechanical properties of PA6. In particular, PA6 with long-chain branching structure through TGIC modification showed better performance in various physicochemical characterizations. The introduction of ZeMac reduced the average diameter of bubbles in pure PA6 from 146.32 to 88.12 µm, and the density of bubbles increased from 1.69 × 105 to 5.35 × 105 cells·cm−3. The introduction of TGIC reduced the average diameter of bubbles in pure PA6 from 146.32 to 64.36 µm, and the density of bubbles increased to 1.31 × 106 cells·cm−3. Moreover, the mechanical properties of both nonfoamed and foamed samples were improved after modification. |
| first_indexed | 2024-12-10T04:47:57Z |
| format | Article |
| id | doaj.art-82ce2bb4c82d41fb8ef6a71f7f9e3c2c |
| institution | Directory Open Access Journal |
| issn | 1618-7229 |
| language | English |
| last_indexed | 2024-12-10T04:47:57Z |
| publishDate | 2022-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | e-Polymers |
| spelling | doaj.art-82ce2bb4c82d41fb8ef6a71f7f9e3c2c2022-12-22T02:01:41ZengDe Gruytere-Polymers1618-72292022-03-0122124926310.1515/epoly-2022-0030Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6Cao Lushuai0Jiang Tuanhui1Liu Bujin2Li Ming3Zhang Di4Gong Wei5He Li6College of Materials and Metallurgy of Guizhou University, Guiyang, ChinaCollege of Materials and Metallurgy of Guizhou University, Guiyang, ChinaCollege of Materials and Metallurgy of Guizhou University, Guiyang, ChinaCollege of Materials and Metallurgy of Guizhou University, Guiyang, ChinaSchool of Chemistry and Chemical Engineering of Guizhou University, Guiyang, ChinaThe Institute of Materials and Construction of Guizhou Normal University, Guiyang, ChinaCollege of Materials and Metallurgy of Guizhou University, Guiyang, ChinaPolyamide 6 (PA6) was modified with ethylene maleic anhydride syndiotactic copolymer resin (ZeMac), and triglycidyl isocyanurate (TGIC) as modifiers to prepare a grafting structure and a long-chain branching structure, respectively. The effects of two modifiers on the rheological behavior, crystallization properties, foaming performance, and mechanical properties of PA6 were systematically studied by rotating rheometry, differential scanning calorimetry and scanning electron microscopy. The results showed that there were differences in crystallization properties between the two modification methods, but they significantly improved the rheological, foaming performance, and mechanical properties of PA6. In particular, PA6 with long-chain branching structure through TGIC modification showed better performance in various physicochemical characterizations. The introduction of ZeMac reduced the average diameter of bubbles in pure PA6 from 146.32 to 88.12 µm, and the density of bubbles increased from 1.69 × 105 to 5.35 × 105 cells·cm−3. The introduction of TGIC reduced the average diameter of bubbles in pure PA6 from 146.32 to 64.36 µm, and the density of bubbles increased to 1.31 × 106 cells·cm−3. Moreover, the mechanical properties of both nonfoamed and foamed samples were improved after modification.https://doi.org/10.1515/epoly-2022-0030polyamide 6grafting structurelong-chain branching structurerheological behaviorfoaming performance |
| spellingShingle | Cao Lushuai Jiang Tuanhui Liu Bujin Li Ming Zhang Di Gong Wei He Li Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 e-Polymers polyamide 6 grafting structure long-chain branching structure rheological behavior foaming performance |
| title | Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 |
| title_full | Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 |
| title_fullStr | Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 |
| title_full_unstemmed | Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 |
| title_short | Effects of grafting and long-chain branching structures on rheological behavior, crystallization properties, foaming performance, and mechanical properties of polyamide 6 |
| title_sort | effects of grafting and long chain branching structures on rheological behavior crystallization properties foaming performance and mechanical properties of polyamide 6 |
| topic | polyamide 6 grafting structure long-chain branching structure rheological behavior foaming performance |
| url | https://doi.org/10.1515/epoly-2022-0030 |
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