竹材液化树脂制发泡栽培基质材料工艺优化  

Process Optimization of Preparation of Foaming Cultivation Matrix Material by Bamboo Liquefied Resin

作　　者：刘震涛 刘乐群[1] 和晴晴 孙思佳 赵莹 王盟盟 LIU Zhentao;LIU Lequn;HE Qingqing;SUN Sijia;ZHAO Ying;WANG Mengmeng(Zhejiang Academy of Forestry,Hangzhou 310023,China;School of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China;School of Engineering,Zhejiang A&F University,Hangzhou 311300,China)

机构地区：[1]浙江省林业科学研究院,浙江杭州310023 [2]浙江工业大学化学工程学院,浙江杭州310014 [3]浙江农林大学工程学院,浙江杭州311300

出　　处：《生物质化学工程》2021年第1期70-76,共7页Biomass Chemical Engineering

基　　金：浙江省标准化研究项目(SJ-BZ/2019090);浙江省公益项目(2014C32043)。

摘　　要：以竹材剩余物为原料,通过液化树脂化制备得到竹材液化树脂,再通过添加聚醚多元醇对竹材液化树脂进行改性,并利用正交试验优化制备工艺参数。结果表明:最优制备工艺参数为发泡体系总质量为200 g,树脂添加量30%,固化剂添加量7.5%,PM-200添加量20%,聚醚多元醇添加量1%,发泡剂添加量10%,表面活性剂添加量8%。此工艺下发泡栽培基质材料的表观密度为0.0419 g/cm^3,浸出pH值为2.61,吸水率为85.93%,保水率为97.68%。通过红外、热重和扫描电镜等表征发现:添加聚醚多元醇后,竹材液化树脂发泡栽培基质材料的粉化情况减轻很多,具有良好的泡孔结构,且具有良好的热稳定性;在耐候性试验中发现,栽培基质材料在室内外放置时主要官能团均未发生变化,都具有良好的耐候性。Bamboo residues were used as raw materials to prepare bamboo liquefied resin by liquefying,and then the bamboo liquefied resin was modified by adding polyether polyol,and the preparation process parameters were optimized by orthogonal method.The results showed that the optimal preparation process parameters were the total weight of foaming system 200 g,resin addition amount 30%,curing agent addition amount 7.5%,PM-200 addition amount 20%,polyether polyol addition amount 1%,addition of foaming agent 10%,and surfactant addition amount 8%.Under this process,the apparent density of the foaming cultivation substrate material was 0.0419 g/cm^3,the leaching pH was 2.61,the water absorption rate was 85.93%,and the water retention rate was 97.68%.Through FT-IR,TG,SEM and other characterization,it was found that after adding polyether polyol,the pulverization of bamboo powder liquefied resin foaming cultivation matrix material was much reduced,and the material had good cell structure and good thermal stability.And the weather resistance test found that the main functional groups of cultivation matrix material didn't change in indoor and outdoor applications and it had good weather resistance.

关 键 词：竹材液化树脂 发泡材料 栽培基质 工艺优化 

分 类 号：TQ35[化学工程]