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| 花生蛋白基胶黏剂应用于胶合板热压工艺研究 |
| Application of peanut protein-based adhesive in plywood hot pressing process |
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| DOI： |
| 中文关键词: 花生蛋白基胶黏剂 花生蛋白 胶合板 热压工艺 |
| 英文关键词:peanut protein-based adhesive peanut protein plywood hot pressing process |
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| 中文摘要: |
| 为了推广花生蛋白基胶黏剂在胶合板中的应用以减少甲醛的释放，优化花生蛋白基胶黏剂应用于杨木胶合板热压条件，分析热压条件对胶合板湿态胶合强度的影响。结果表明：4个因素对湿态胶合强度的影响大小依次为：热压温度>热压时间>涂胶量>热压压力；胶合板的最佳热压条件为热压温度120?℃、热压时间8 min、热压压力1.2 MPa、涂胶量220 g/m2，在此条件下制备的胶合板湿态胶合强度为1.09 MPa，符合GB/T 9846—2015 中I类胶合板的要求（≥0.70 MPa），且该热压工艺条件在工业化生产中能够实现。红外光谱分析表明固化后花生蛋白基胶黏剂亲水性基团减少，同时酰胺键增加，说明内部基团发生交联反应。 |
| 英文摘要: |
| In order to promote the application of peanut protein-based adhesive in plywood to reduce the release of formaldehyde, the hot pressing process of application of peanut-based protein adhesive in plywood was optimized, and the influences of hot pressing conditions on the wet bonding strength of plywood were analyzed. The results showed that the influence of the hot pressing temperature was the greatest, followed by hot pressing time, glue dosage and hot pressing pressure. The optimal hot pressing conditions were obtained as follows: hot pressing temperature 120?℃, hot pressing time 8 min, hot pressing pressure 1.2 MPa and glue dosage 220 g/m2. Under these conditions, the wet bonding strength of plywood was 109 MPa, meeting the requirement for class I plywood （≥0.70 MPa）in national standard GB/T 9846—2015. The hot pressing process could be realized in the industrial production. The infrared spectrum analysis showed that hydrophilic group of solidified peanut protein-based adhesive decreased and amide bond increased, indicating that crosslinking reaction occured in the group. |
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