Moisture crosslinking and properties of ethylene-vinyl acetate rubber

Zhang, Qinghong; Wang, Gongliang; Wen, Xinlong; Marosevic, Durdica; Mao, Jie; Shi, Xinyan

doi:10.1016/j.polymer.2022.125362

Cited by 5 publications

(9 citation statements)

References 30 publications

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“…According to our previous work, 23 the mechanism for amino silane grafting onto EVM‐GMA was shown in Figure 3. Based on the theory of MAH grafting polyolefin, 28 the possible reaction mechanism in this work was shown in Figure 4.…”

Section: Resultsmentioning

confidence: 93%

“…Reaction scheme for APTES grafting on EVM‐GMA 23 . [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

“…According our previsou work, 23 amino silane grafting onto EVM-GMA was demonstrated. To further prove that MAH had been grafted onto the EVM-GMA rubber matrix and reacted with APTES, the molecular structure of pure EVM-GMA, Si1.5, Si1.5/M samples were characterized by FT-IR, as shown in Figure 6.…”

Section: Ft-ir Analysismentioning

confidence: 99%

“…However, the M-Si1.5 sample showed an obvious F I G U R E 3 Reaction scheme for APTES grafting on EVM-GMA. 23 [Color figure can be viewed at wileyonlinelibrary.com] F I G U R E 4 Reaction scheme for MAH grafting on EVM-GMA and its reaction with APTES. 28 [Color figure can be viewed at wileyonlinelibrary.com] exothermic peak at 144-203 C. There were two reasons for the exothermic peak: on one hand, the grafting of MAH onto the rubber matrix could generate the exothermic peak, on the other hand, the reaction between the amino group and the anhydride was also exothermic behavior.…”

Section: Thermal Effect Of Mah Graftingmentioning

confidence: 99%

“…19,21,22 Nevertheless, there are few studies on moisture crosslinking EVM. Zhang et al 23 from our group prepared EVM-GMA-g-APTES graft copolymer by melt grafting with γ-aminopropyltriethoxysilane (APTES, one of amino silane) which reacted with the epoxy group from GMA. Subsequently, the moisture crosslinking of the graft copolymer was carried out in a water bath at 90 C with catalyst of dibutyltin dilaurate (DBTL).…”

Section: Introductionmentioning

confidence: 99%

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Effects of maleic anhydride on the moisture crosslinking of EVM‐GMA grafted with amino silane

Su,

Han,

Hoch

et al. 2023

J of Applied Polymer Sci

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Moisture crosslinking would be a good substitution to cure ethylene‐vinyl acetate‐glycidyl methacrylate rubber (EVM‐GMA) due to the characteristics of low cost and environmental friendliness. Our previous study found amino silane grafted onto EVM‐GMA with low degree due to the low epoxy group content in rubber matrix. Consequently, the moisture crosslinking density of rubber compound is low. So, it is necessary to find an effective method to improve the moisture crosslinking density of EVM‐GMA. In this paper, EVM‐GMA grafted with γ‐aminopropyltriethoxysilane and maleic anhydride (EVM‐GMA‐g‐APTES/MAH) composites were prepared by melt blending, and then the moisture crosslinking of composites was achieved in a 90°C water bath with the aid of catalyst dibutyltin dilaurate (DBTL). The grafting of MAH onto the EVM‐GMA molecular chain and its reaction with amino silane were confirmed by differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT‐IR). Furthermore, the moisture crosslinking density of the samples before and after grafting MAH was compared. The results indicated that the moisture crosslinking density of the grafted MAH was higher than that of the unmodified rubber, thus achieving better overall mechanical properties. Therefore, grafting MAH was a feasible way to improve the moisture crosslinking density of EVM‐GMA with the existence of silane.

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Section: Resultsmentioning

confidence: 93%

“…Reaction scheme for APTES grafting on EVM‐GMA 23 . [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Resultsmentioning

confidence: 99%

Section: Ft-ir Analysismentioning

confidence: 99%

Section: Thermal Effect Of Mah Graftingmentioning

confidence: 99%