为提高酚醛树脂结合铝碳砖常温强度并降低其成本,用碱木素替代部分苯酚,以碱木素含量、催化剂量和缩聚反应时间为因素,以合成的碱木素改性酚醛树(LPF)作结合剂的铝碳砖烘干后的常温抗折强度为考核指标,通过正交试验设计分析各因素对合成LPF的影响程度依次为:碱木素含量＞催化剂含量＞缩聚反应时间.用逐次回归分析预测合成LPF的最佳工艺条件为:碱木素含量10％(质量分数)、催化剂含量2％(质量分数)、缩聚反应时间2.5h.该最佳工艺合成的LPF结合铝碳砖的常温抗折强度达18.2 MPa,比商业酚醛结合铝碳砖常温抗折强度(16.1 MPa)提高13％,其物理性能也较商业酚醛树脂结合铝碳砖优.
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