Synthesis and application of hydroxyethyl methacrylate modified waterborne polyurethane

LI Jinliang; TIAN Yanhong; ZHANG Xuejun; LI Chen; HU Qi

doi:10.3969/j.issn.0438-1157.2013.06.047

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Synthesis and application of hydroxyethyl methacrylate modified waterborne polyurethane

更新时间：2025-12-10

- Synthesis and application of hydroxyethyl methacrylate modified waterborne polyurethane
- CIESC Journal Issue 6, Pages: 2257-2263(2013)
- 作者机构：
  
  北京化工大学有机无机复合材料国家重点实验室,北京,100029
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.06.047
  CLC： Q323.8
- Online First：05 June 2013，
  
  Published：05 June 2013
- 稿件说明：
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LI Jinliang, TIAN Yanhong, ZHANG Xuejun, et al. Synthesis and application of hydroxyethyl methacrylate modified waterborne polyurethane[J]. CIESC Journal, 2013, (6): 2257-2263.
DOI：

LI Jinliang, TIAN Yanhong, ZHANG Xuejun, et al. Synthesis and application of hydroxyethyl methacrylate modified waterborne polyurethane[J]. CIESC Journal, 2013, (6): 2257-2263. DOI： 10.3969/j.issn.0438-1157.2013.06.047.

摘要

以甲苯二异氰酸酯(TDI)和聚乙二醇(PEG)为原料

选用2

2-二羟甲基丁酸(DMBA)为扩链剂合成水性聚氨酯(WPU)

通过甲基丙烯酸羟乙酯(HEMA)对水性聚氨酯进行封端

采用自乳化法

制备了HEMA改性水性聚氨酯乳液(HEMA-WPU)。通过红外、核磁和热重法(TG)分别表征了WPU和HEMA-WPU的分子结构及其热分解行为。结果表明

与WPU相比

HEMA-WPU的耐热性能明显提高

用该乳液上胶处理后的碳纤维/环氧树脂复合材料的层间剪切强度(ILSS)与未上胶的样品相比提高了7.5%

达到64.5 MPa。

Abstract

Waterborne polyurethane (WPU) was prepared by using toluene diisocynate (TDI) and polyethylene glycol (PEG) as raw materials

and 2

2-dimethylolbutyric acid as chain extender. Hydroxyethyl methacrylate (HEMA) was used to terminate WPU.The self-emulsifying method was adopted to prepare HEMA-grafted WPU (HEMA-WPU) emulsion.Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) and thermogravimetric analysis (TG) were used to characterize the molecular structure and thermal endurance of HEMA-WPU.Compared with WPU

the thermal endurance of HEMA-WPU was raised obviously.The inter-laminar shear strength (ILSS) of carbon fiber/epoxy resin composite samples after sizing by the prepared emulsion was raised by 7.5%

reaching 64.5 MPa

compared with the un-sized samples.

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