Dynamically vulcanized polylactic acid/natural rubber/waste rubber blends: Effect of the crosslinking agent on the morphology and tensile properties

被引：15

作者：

Candau, Nicolas ^{[1
]}

Leon Albiter, Noel ^{[1
]}

Roura Coll, Pol ^{[1
]}

Lluisa Maspoch, Maria ^{[1
]}

机构：

[1] Univ Politecn Cataluna, Ctr Catala Plast, Dept Ciencia & Engn Mat, Barcelonatech, Avda Eduard Maristany 16, Barcelona 08019, Spain

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2022年 / 139卷 / 41期

基金：

欧盟地平线“2020”;

关键词：

biopolymers and renewable polymers; elastomers; mechanical properties; microscopy; swelling; STRAIN-INDUCED CRYSTALLIZATION; NATURAL-RUBBER; THERMOPLASTIC ELASTOMERS; BALANCED STIFFNESS; SUPER-TOUGH; BEHAVIOR; PHASE; KINETICS; DENSITY; NR;

D O I：

10.1002/app.53001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

PLA/natural rubber (NR)/wastes tire rubber (GTR) were dynamically vulcanizing using dicumyl peroxide (DCP). Swelling, dissolution, and electron microscopy revealed that the unvulcanized and weekly vulcanized blends (DCP < 3 wt%) show a continuous rubber phase while the highly vulcanized blends (DCP > 3 wt%) show co-continuous rubber/PLA phase. In the latter blends, the tensile toughness (1.3 MJ m(-3)) and the tensile-impact strength of the neat PLA (58 kJ m(-2)) were increased of a factor 12.5 and 8.3 respectively. Moreover, the appropriate crosslinking agent content (3-3.75 wt%) in the ternary blends allowed to reach same tensile toughness, impact strength, shape recovery and shape fixity as compared to their equivalent binary PLA/NR blends.

引用

页数：12

共 52 条

[11] A comparison of the abilities of natural rubber (NR) and synthetic polyisoprene cis-1,4 rubber (IR) to crystallize under strain at high strain rates [J].

Candau, Nicolas ;

Chazeau, Laurent ;

Chenal, Jean-Marc ;

Gauthier, Catherine ;

Munch, Etienne .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2016, 18 (05) :3472-3481

[12] Strain-Induced Crystallization of Natural Rubber and Cross-Link Densities Heterogeneities [J].

Candau, Nicolas ;

Laghmach, Rabia ;

Chazeau, Laurent ;

Chenal, Jean-Marc ;

Gauthier, Catherine ;

Biben, Thierry ;

Munch, Etienne .

MACROMOLECULES, 2014, 47 (16) :5815-5824

[13] Bio-Based PLA/NR-PMMA/NR Ternary Thermoplastic Vulcanizates with Balanced Stiffness and Toughness: "Soft-Hard" Core-Shell Continuous Rubber Phase, In Situ Compatibilization, and Properties [J].

Chen, Yukun ;

Wang, Wentao ;

Yuan, Daosheng ;

Xu, Chuanhui ;

Cao, Liming ;

Liang, Xingquan .

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2018, 6 (05) :6488-+

[14] Biobased Heat-Triggered Shape-Memory Polymers Based on Polylactide/Epoxidized Natural Rubber Blend System Fabricated via Peroxide-Induced Dynamic Vulcanization: Co-continuous Phase Structure, Shape Memory Behavior, and Interfacial Compatibilization [J].

Chen, Yukun ;

Chen, Kunling ;

Wang, Youhong ;

Xu, Chuanhui .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2015, 54 (35) :8723-8731

[15] Dynamically Vulcanized Biobased Polylactide/Natural Rubber Blend Material with Continuous Cross-Linked Rubber Phase [J].

Chen, Yukun ;

Yuan, Daosheng ;

Xu, Chuanhui .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (06) :3811-3816

[16] Waste Rubber Recycling: A Review on the Evolution and Properties of Thermoplastic Elastomers [J].

Fazli, Ali ;

Rodrigue, Denis .

MATERIALS, 2020, 13 (03)

[17] Highly toughened blends of poly(lactic acid) (PLA) and natural rubber (NR) for FDM-based 3D printing applications: The effect of composition and infill pattern [J].

Fekete, Imre ;

Ronkay, Ferenc ;

Lendvai, Laszlo .

POLYMER TESTING, 2021, 99

[18] STATISTICAL MECHANICS OF SWELLING OF NETWORK STRUCTURES [J].

FLORY, PJ .

JOURNAL OF CHEMICAL PHYSICS, 1950, 18 (01) :108-111

[19] THERMODYNAMICS OF CRYSTALLIZATION IN HIGH POLYMERS .1. CRYSTALLIZATION INDUCED BY STRETCHING [J].

FLORY, PJ .

JOURNAL OF CHEMICAL PHYSICS, 1947, 15 (06) :397-408

[20]

Fujimoto K., 1981, INT POLYM SCI TECHNO, V30, P29

← 1 2 3 4 5 6 →