[发明专利]基于淀粉和坚木栲胶新型无醛木材胶粘剂及其制备方法

摘要

本发明公开了一种基于淀粉和坚木栲胶新型无醛木材胶粘剂及其制备方法，属于胶粘剂及其制备领域。本发明是以淀粉为主要原料，碱性环境中高温条件下糊化降解前处理后，调节体系pH值至4-5，采用醋酸乙烯酯单体在种子乳液聚合工艺下对淀粉进行接枝共聚，降温后加入坚木栲胶、硼酸、纳米硅溶胶和其它助剂，最终得到一种性能优良的木材用淀粉坚木栲胶胶粘剂。利用本发明技术所制备的胶粘剂具有无毒无污染，粘接强度较高，颜色乳白有光泽，干燥速度快，储藏时间长等优点，可以广泛应用于装饰用木材，人造板的粘接。

主权项

一种基于淀粉和坚木栲胶新型无醛木材胶粘剂，其特征在于，各成分及质量百分数如下：淀粉                                              30.0%‑35.0%坚木栲胶                                           2.0%‑3.0%质量分数为30%氢氧化钠溶液                   0.2%‑0.25%消泡剂                                        0.1%‑0.15%乳化剂                                         0.1%‑0.15%缓冲剂                                         0.1%‑0.15%引发剂                                           0.05%‑0.08%醋酸乙烯酯                                     5.0%‑8.0%甲基丙烯酸                                        0.5%‑0.8%尿素                                         0.5%‑0.8%硼酸                                         0.05%‑0.1%纳米硅溶胶                                   0.3%‑0.35%增塑剂                                         0.2%‑0.3%防腐剂                                         0.2‑0.3%水                                            60.7%‑50.57%。