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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of melamine-formaldehyde resin grafted by (3-aminopropyl) triethoxysilane for high-performance hydrophobic materials
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Preparation of melamine-formaldehyde resin grafted by (3-aminopropyl) triethoxysilane for high-performance hydrophobic materials

机译：用（3-氨基丙基）三乙氧基硅烷接枝的三聚氰胺 - 甲醛树脂以高性能疏水材料的制备

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摘要

Aiming at meeting the specific market demands and expanding the downstream application of melamine-formaldehyde (MF) resins, a series of (3-aminopropyl) triethoxysilane (APTES) grafted MF (MF-Si) resins were synthesized via an effective method that minimized the hydrolysis of APTES and overcame the polarity discrepancy of APTES with MF resin matrix. The structure of MF-Si resins was characterized by FTIR spectroscopy, Raman spectroscopy, H-1 nuclear magnetic resonance (NMR), and solid state C-13 NMR. It was found that APTES moieties in MF-Si materials afforded increased hydrophobicity, water resistance, and the thermal stability was not affected. With the increasing amount of APTES, the water contact angle of MF-Si films increased from 70.56 to 105.92 degrees and the surface free energy decreased from 46.8 to 23.5 mN/m. The temperature of maximum weight loss rate (T-dmax) of MF-Si materials decreased slightly from 371.15 to 353.70 degrees C and the ultimate residual weight of MF-Si materials increased from 12.51 to 30.04% at 800 degrees C under N-2. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48664.
机译：旨在满足特定的市场需求和扩大三聚氰胺 - 甲醛（MF）树脂的下游施用，通过最小化的有效方法合成一系列（3-氨基丙基）三乙氧基硅烷（Aptes）接枝的MF（MF-Si）树脂伴随的水解并克服伴有MF树脂基质的Aptes的极性差异。 MF-Si树脂的结构的特征在于FTIR光谱，拉曼光谱，H-1核磁共振（NMR）和固态C-13 NMR。发现MF-Si材料中的Aptes部分得到了增加的疏水性，耐水性，耐水性，并且热稳定性不受影响。随着APT的增加，MF-Si薄膜的水接触角从70.56增加到105.92度，并且表面自由能量从46.8降至23.5mN / m。 MF-Si材料的最大重量损失率（T-Dmax）的温度略微下降至353.70℃，并且MF-Si材料的最终残余重量在N-2下的800℃下增加12.51至30.04％。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,137,48664。

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