竹材液化树脂制发泡栽培基质材料工艺优化

doi:10.3969/j.issn.1673-5854.2021.01.010

生物质化学工程 ›› 2021, Vol. 55 ›› Issue (1): 70-76.doi: 10.3969/j.issn.1673-5854.2021.01.010

竹材液化树脂制发泡栽培基质材料工艺优化

刘震涛¹^,²(), 刘乐群¹^,*(), 和晴晴¹^,², 孙思佳¹^,³, 赵莹¹, 王盟盟¹^,³

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

收稿日期:2020-06-08 出版日期:2021-01-30 发布日期:2021-01-25
通讯作者: 刘乐群 E-mail:liuzhentao_4113@163.com;llq234@sina.com
作者简介:刘乐群, 教授级高工, 硕士生导师, 研究领域:材料化学与应用研究; E-mail:llq234@sina.com
刘震涛(1994-), 男, 重庆人, 硕士生, 研究方向:应用化学; E-mail:liuzhentao_4113@163.com
基金资助:
浙江省标准化研究项目(SJ-BZ/2019090);浙江省公益项目(2014C32043)

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

Zhentao LIU¹^,²(), Lequn LIU¹^,*(), Qingqing HE¹^,², Sijia SUN¹^,³, Ying ZHAO¹, Mengmeng WANG¹^,³

1. Zhejiang Academy of Forestry, Hangzhou 310023, China
2. School of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
3. School of Engineering, Zhejiang A&F University, Hangzhou 311300, China

Received:2020-06-08 Online:2021-01-30 Published:2021-01-25
Contact: Lequn LIU E-mail:liuzhentao_4113@163.com;llq234@sina.com

摘要/Abstract

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0.041 9 g/cm³，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。

关键词: 竹材液化树脂, 发泡材料, 栽培基质, 工艺优化

Abstract:

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 0.041 9 g/cm³, 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.

Key words: bamboo liquefied resin, foaming material, cultivation substrate, process optimization

中图分类号:

TQ35

刘震涛, 刘乐群, 和晴晴, 孙思佳, 赵莹, 王盟盟. 竹材液化树脂制发泡栽培基质材料工艺优化[J]. 生物质化学工程, 2021, 55(1): 70-76.

Zhentao LIU, Lequn LIU, Qingqing HE, Sijia SUN, Ying ZHAO, Mengmeng WANG. Process Optimization of Preparation of Foaming Cultivation Matrix Material by Bamboo Liquefied Resin[J]. Biomass Chemical Engineering, 2021, 55(1): 70-76.

图/表 7

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参考文献 21

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试验号 No.	A树脂添加量/% addition of resin	B固化剂添加量/% addition of curing agent	CPM-200添加量/% addition of PM-200	D聚醚多元醇添加量/% addition of polyether polyol	表观密度/ (g·cm^-3) apparent density	吸水率/% water absorption	保水率/% water retention	浸出pH值 leaching pH value
1	30	4.5	20	1	0.0431	88.54	94.55	3.11
2	30	7.5	25	2	0.0490	85.51	96.96	2.48
3	30	10.5	30	3	0.1109	67.77	97.65	2.17
4	40	4.5	25	3	0.0957	47.83	94.91	5.90
5	40	7.5	30	1	0.0493	75.10	96.17	2.74
6	40	10.5	20	2	0.0683	53.65	96.81	2.27
7	50	4.5	30	2	0.1523	32.37	81.99	6.27
8	50	7.5	20	3	0.0488	66.92	98.12	3.41
9	50	10.5	25	1	0.0558	62.08	98.05	2.75
k′₁	0.068	0.097	0.053	0.049
k′₂	0.071	0.049	0.067	0.090
k′₃	0.086	0.078	0.104	0.085
R′	0.018	0.048	0.051	0.041
k″₁	80.61	56.25	69.70	75.24
k″₂	58.86	75.84	65.14	57.18
k″₃	53.79	61.17	58.41	60.84
R″	26.82	19.60	11.29	18.06
k′′′₁	96.39	90.48	96.49	96.26
k′′′₂	95.96	97.08	96.64	91.92
k′′′₃	92.72	97.50	91.94	96.89
R′′′	3.67	7.02	4.70	4.97
k''''₁	2.587	5.093	2.930	2.867
k''''₂	3.637	2.877	3.710	3.673
k′′′′₃	4.143	2.397	3.727	3.827
R′′′′	1.556	2.696	0.797	0.960

试验样品 sample	起始分解温度/℃ initial decomposition temperature	温度范围temperature range/℃
试验样品 sample	起始分解温度/℃ initial decomposition temperature	第一阶段 the first stage	第二阶段 the second stage	第三阶段 the third stage
未添加聚醚多元醇 without polyether polyol	171	171~231	231~441	441~656
添加聚醚多元醇 adding polyether polyol	167	167~227	227~472	472~657

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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

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