Environment-friendly stress whitening-resistant ABS (acrylonitrile-butadiene-styrene) resin and preparation method thereof

The invention relates to the technical field of high-molecular compounds, and particularly discloses environment-friendly stress whitening-resistant ABS (acrylonitrile-butadiene-styrene) resin and a preparation method thereof. The environment-friendly stress whitening-resistant ABS resin is prepared from low-viscosity and low-content rubber through a continuous bulk method, a grafting kettle is additionally arranged in an existing continuous bulk method device, a multipolymer glue solution is added into an original ABS melt, and meanwhile, the ABS glue solution is prepared into the environment-friendly stress whitening-resistant ABS resin in a segmented feeding mode. Compared with the mode of adding the modifier, the ABS resin provided by the invention has excellent stress whitening resistance and is environment-friendly. 本发明涉及高分子化合物技术领域，具体公开一种环保型抗应力发白ABS树脂及其制备方法。所述环保型抗应力发白ABS树脂使用低粘度和低含量橡胶采用连续本体法制备得到，本发明通过在现有连续本体法装置中增加接枝釜向原ABS熔体中添加多元共聚物胶液，同时将ABS胶液采用分段加料方式制备得到环保型抗应力发白ABS树脂树脂。相较于添加改性剂的方式，本发明的ABS树脂抗应力发白性能优异，且环境友