The effect of maleic anhydride grafting on the flame retardation of plasma pretreated polyethylene

Chiang, Wen‐Yen; Ku, Yuan-An

doi:10.1016/s0141-3910(02)00025-3

Cited by 15 publications

(11 citation statements)

References 20 publications

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“…Addition of EVA (0-40 phr) because of its rubbery property [11][12][13] made the compounds (1H-8H) flexible, which in turn HS% values increased accordingly. Increasing irradiation (0-110 kGy) due to formation of cross-link networks in the polymer matrices [14] prevented chain mobility of polymers and improved performance of polymer compounds at high temperature. Thus, increasing irradiation (0-110 kGy) of polymer compounds (1H-8H) led to decrease HS% values.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 10 shows the TS values of compounds (1H-8H) versus irradiation (0-110 kGy and EVA levels (0-40 phr). Increasing irradiation produces and developes a threedimensional network inside polymer matrices [13][14][15][16] . Therefore, Increasing irradiation increased TS values of compounds at each EVA content.…”

Section: Resultsmentioning

confidence: 99%

“…Adhesion forces in compounds content ATH (1I-4I) were weaker than compounds with MH (5I-8I) [12][13][14][15][16][17][18] . Thus, TS values for compounds with MH (5I-8I) were higher than compounds content ATH at each irradiation and LDPE-g-MAH level.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, increasing irradiation increased TS values of compounds (1J-8J) at each EVA level. EVA has conjugated bonds in its chemical structure, thus, it generates high free radicals at lower irradiation rate than LDPE [12][13][14][15] . Addition of EVA (40-100 phr) to the polymer compounds (1J-8J) provided a proper interaction between polymers-fillers and made higher cross-link bonds in polymer matrix at each irradiation.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 14 shows the EB values of compounds (1I-8I) versus irradiation (0-110 kGy) and addition of LDPE-g-MAH (6-12 phr). Addition of LDPE-g-MAH improves interaction among polymer matrices and fillers [14] . Therefore, adding LDPE-g-MAH to polymer matrix (1I-8I) at each irradiation (0-110 kGy) increased EB values.…”

Section: Resultsmentioning

confidence: 99%

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The Effect of Addition EVA and LDPE-g-MAH on Irradiated LDPE Filled with Metal Hydroxides

Sabet

Soleimani

Hassan

et al. 2014

Polymer-Plastics Technology and Engineering

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Electron beam irradiation efffects on polymer cross-linking used for wire and cable insulations are still being researched. This study showed that upon irradiation, ethylene vinyl acetate (EVA) and maleic anhydride grafted polyethylene (LDPE-g-MAH) addition as coupling agent to the LDPE/fillers, improved processing and mechanical properties of compounds at each irradiation dosage (0-110 kGy). A gradual increase in gel content (GC) and tensile strength (TS) with a concomitant decline in elongation at break (EB), hot set (HS) and densities of compounds were observed upon irradiation of the blends. Melt flow index test (MFI) results revealed that filler addition reduced compounds flowing and in consequence, caused difficult to process. The LDPE/EVA blends TS values decreased significantly with fillers addition (ATH, MH and ZB). Consequently, this study demonstrated that filler addition to irradiated low density polyethylene (LDPE) impaired processing and mechanical properties of compounds, whereas, LDPE-g-MAH (6-12 phr) and EVA (0-100 phr) addition to the compounds (1I-8I) improved the blends flowability and mechanical properties at each irradiation dose (0-110 kGy). Moreover, among additive fillers, MH content compounds presented the strongest adhesion forces with polymeric compounds compared with analog compounds content aluminum trihydrate (ATH) or zinc borate (ZB) at each irradiation dosage.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

The Effect of Addition EVA and LDPE-g-MAH on Irradiated LDPE Filled with Metal Hydroxides

Sabet

Soleimani

Hassan

et al. 2014

Polymer-Plastics Technology and Engineering

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A facile route to develop hydrophilicity on the polyolefin surface for biomedical applications

et al. 2017

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In this study, the surface of low-density polyethylene (LDPE) was functionalized with maleic anhydride (MA) using solution grafting method in the presence of benzoyl peroxide (BPO), an initiator. The surface chemistry of the grafted LDPE was characterized using different characterization tools. The effect of MA grafting for analysis of bulk properties such as the change in mechanical strength and thermal properties was studied. Further, the nanoindentation study was performed to analyze the surface mechanical property after MA grafting. Biocompatibility studies were carried out using NIH-3T3 cells through MTT assay test. FTIR analysis revealed the presence of carboxylic groups on LDPE surface. The contact angle value was found to be 44 ± 3°, which confirms the development of hydrophilicity in LDPE. Cell viability was found >75% in MTT assay. These results suggested that the prepared hydrophilic LDPE is a potential candidate for biomedical applications and surface coatings with other polar polymer. K E Y W O R D Sbiocompatibility, hydrophilicity, maleic anhydride, solution grafting, surface functionalization How to cite this article: Siddiqa AJ, Maji S, Chaudhury K, Adhikari B. A facile route to develop hydrophilicity on the polyolefin surface for biomedical applications.

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Surface grafting polymerization of N‐vinyl‐2‐pyrrolidone onto a poly(ethylene terephthalate) nonwoven by plasma pretreatment and its antibacterial activities

Chen

Lin

et al. 2006

J of Applied Polymer Sci

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ABSTRACT:The objective of this research was the surface grafting polymerization of biocompatible monomer N-vinyl-2-pyrrolidone (NVP) onto a plasma-treated nonwoven poly-(ethylene terephthalate) (PET) substrate with ultraviolet (UV)-induced methods. The effects of various parameters, such as the monomer concentration, reaction time, initiator (ammonium peroxodisulfate) concentration, and crosslinking agent (N,NЈ-methylene bisacrylamide) concentration, on the grafting percentage were studied. The grafting efficiency of the modified nonwoven PET surfaces reached a maximum at 50 min of UV irradiation and with a 30 wt % aqueous NVP solution. After the plasma activation and/or grafting, the hydrophobic surface of the nonwoven was modified into a hydrophilic surface. NVP was successfully grafted onto nonwoven PET surfaces. The surface wettability showed that the water absorption of NVPgrafted nonwoven PET (NVP-g-nonwoven PET) increased with increasing grafting time. NVP-g-nonwoven PET was verified by Fourier transform infrared spectra and scanning electron microscopy measurements. An antibacterial assessment using an anti-Staphylococcus aureus test indicated that S. aureus was restrained from growing in NVPg-nonwoven PET.

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The effect of maleic anhydride grafting on the flame retardation of plasma pretreated polyethylene

Cited by 15 publications

References 20 publications

The Effect of Addition EVA and LDPE-g-MAH on Irradiated LDPE Filled with Metal Hydroxides

The Effect of Addition EVA and LDPE-g-MAH on Irradiated LDPE Filled with Metal Hydroxides

A facile route to develop hydrophilicity on the polyolefin surface for biomedical applications

Surface grafting polymerization of N‐vinyl‐2‐pyrrolidone onto a poly(ethylene terephthalate) nonwoven by plasma pretreatment and its antibacterial activities

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