Influence of the degree of grafting on the morphology and mechanical properties of blends of poly(butylene terephthalate) and glycidyl methacrylate grafted poly(ethylene‐<i>co</i>‐propylene) (EPR)

Sun, S. L.; Tan, Zhongchao; Zhang, MY; Yang, Heng; Hx, Zhang

doi:10.1002/pi.2009

Cited by 32 publications

(12 citation statements)

References 40 publications

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“…Therefore, notched Izod impact strength of the blends had the same change trend with GR of EPM-g-MAN with increasing EPM/(EPM þ MMA-AN) ratio. Li et al [8] and Sun et al [9] reported the similar results of the effect of GR on impact strength in POE-g-MAH/Nylon-11 blends and EPR-g-GMA/PBT blends, respectively. increased with the increasing initiator concentration, up to 39.97% and 64.87%, respectively, at 0.75 wt%, and then decreased slightly.…”

Section: Effect Of Epm/(epm þ Mma-an) Mass Ratio On Graftmentioning

confidence: 59%

Suspension Grafting Copolymerization of EPM-g-MAN and Its Toughening Effect on SAN Resin

Xiong

Wang

Zhang

2010

Journal of Elastomers & Plastics

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EPM-graft-methyl methacrylate and acrylonitrile (EPM-g-MAN) was synthesized by graft copolymerization of methyl methacrylate (MMA) and acrylonitrile (AN) onto ethylene-propylene bipolymer (EPM) using the method of suspension polymerization. A novel engineering plastic with high impact strength, AEMS, which shows excellent resistance to weatherability and yellow discoloration and aging properties, were prepared by blending EPM-g-MAN with styrene-acrylonitrile (SAN) resin. The influence of the suspension grafting copolymerization technologies, including monomer ratios, EPM ratios, initiator content on monomer conversion ratio, grafting ratio, grafting efficiency, and the impact strength of AEMS, were investigated. The result showed that the optimized reaction conditions were obtained when the mass ratio of AN/MMA-AN(f AN ) was 15 wt%, the mass ratio of EPM/(EPM þ MMA-AN) was 60 wt%, and the mass ratio of BPO/(EPM þ MMA-AN) was 0.6 wt%. When the EPM/ AEMS mass ratio was 25 wt%, the notched Izod impact strength of AEMS reached 55.9 kJ/m 2 . DSC and DMA analysis showed that the compatibility of EPM-g-MAN and SAN resin improved when the grafting chain polarity was appropriate. Transmission electron microscopy analysis showed that EPM phase was the near continuous phase in the shape of bead string with diameter of about 0.15 mm and had good compatibility with SAN resin. Scanning electron microscopy analysis indicated that AEMS fracture surface appeared 'root beard' morphology. These phenomena indicated that the toughening mechanism was shear yielding of matrix, which endowed AEMS with remarkable toughness.

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Section: Effect Of Epm/(epm þ Mma-an) Mass Ratio On Graftmentioning

confidence: 59%

Suspension Grafting Copolymerization of EPM-g-MAN and Its Toughening Effect on SAN Resin

Xiong

Wang

Zhang

2010

Journal of Elastomers & Plastics

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“…These cavities were deformed and the matrix around the sheared rubber particles had plastically deformed to a similar degree (as Fig. 8b) [36] , thus the morphology further proved the occurrence of shearing yielding of the PPC matrix. For the blend, the cavitation prevents hydrostatic tension, encourages shear deformation in the surrounding matrix, and thus produces extensive local ductility.…”

Section: Morphology Observationmentioning

confidence: 91%

Thermal, mechanical and rheological properties of biodegradable poly(propylene carbonate) and poly(butylene carbonate) blends

Zhao

et al. 2015

Chin J Polym Sci

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Poly(propylene carbonate) (PPC) was melt blended in a batch mixer with poly(butylene carbonate) (PBC) in an effort to improve the toughness of the PPC without compromising its biodegradability and biocompatibility. DMA results showed that the PPC/PBC blends were an immiscible two-phase system. With the increase in PBC content, the PPC/PBC blends showed decreased tensile strength, however, the elongation at break was increased to 230% for the 50/50 PPC/PBC blend. From the tensile strength experiments, the Pukanszky model gave credit to the modest interfacial adhesion between PPC and PBC, although PPC/PBC was immscible. The impact strength increased significantly which indicated the toughening effects of the PBC on PPC. SEM examination showed that cavitation and shear yielding were the major toughening mechanisms in the blends subjected the impact tests. TGA measurements showed that the thermal stability of PPC decreased with the incorporation of PBC. Rheological investigation demonstrated that the addition of PBC reduced the value of storage modulus, loss modulus and complex viscosity of the PPC/PBC blends to some extent. Moreover, the addition of PBC was found to increase the processability of PPC in extrusion. The introduction of PBC provided an efficient and novel toughened method to extend the application area of PPC.

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“…Based on the extensive research foundations of previous researcher, we noticed that the GMA is an important functional monomer among these functional vinyl monomers because of its reactive epoxy group that can react with carboxyl, hydroxyl, and amine functional groups [ 42 ]. The GMA-functionalized polymers are good compatibilizers in immiscible polymer blends and are excellent adhesives [ [43] , [44] , [45] ]. Additionally, the NVP is a polar, unconjugated and reactive monomer.…”

Section: Introductionmentioning

confidence: 99%

Balancing the decomposable behavior and wet tensile mechanical property of cellulose-based wet wipe substrates by the aqueous adhesive

Yun

Cheng

Qian

et al. 2020

International Journal of Biological Macromolecules

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With the current global outbreak of novel coronaviruses, the fabrication of decomposable wet wipe with sufficient wet strength to meet daily use is promising but still challenging, especially when renewable cellulose was employed. In this work, a decomposable cellulose-based wet wipe substrate is demonstrated by introducing a synthetic N-vinyl pyrrolidone-glycidyl methacrylate (NVP-GMA) adhesive on the cellulose surface. Experimental results reveal that the NVP-GMA adhesive not only significantly facilitates the chemical bonding between cellulose fibers in the wet state, but also increase the surface wettability and water retention. The as-fabricated cellulose-based wet wipe substrate displays a superb water retention capacity of 1.9 times, an excellent water absorption capacity (completely wetted with 0° water contact angle), and a perfect wet tensile index of 3.32 N.m.g −1 . It is far better than state-of-the-art wet toilet wipe on the market (non-woven). The prepared renewable and degradable cellulose-based substrate with excellent mechanical strength has potential application prospects in diverse commercially available products such as sanitary and medical wet wipes.

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Influence of the degree of grafting on the morphology and mechanical properties of blends of poly(butylene terephthalate) and glycidyl methacrylate grafted poly(ethylene‐co‐propylene) (EPR)

Cited by 32 publications

References 40 publications

Suspension Grafting Copolymerization of EPM-g-MAN and Its Toughening Effect on SAN Resin

Suspension Grafting Copolymerization of EPM-g-MAN and Its Toughening Effect on SAN Resin

Thermal, mechanical and rheological properties of biodegradable poly(propylene carbonate) and poly(butylene carbonate) blends

Balancing the decomposable behavior and wet tensile mechanical property of cellulose-based wet wipe substrates by the aqueous adhesive

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