樟树加工剩余物热压成型制备育苗容器及性能评价的研究

doi:10.11924/j.issn.1000-6850.casb2022-0938

中国农学通报 ›› 2023, Vol. 39 ›› Issue (32): 72-77.doi: 10.11924/j.issn.1000-6850.casb2022-0938

樟树加工剩余物热压成型制备育苗容器及性能评价的研究

贺磊¹(), 黄慧¹, 郭捷¹, 邓涛¹, 范肖东²^,³, 陈玲³, 雍宬³, 黄红英³, 孙恩惠³

¹ 江西省林业科学院，南昌 330013
² 南京林业大学材料科学与工程学院，南京 210037
³ 江苏省农业科学院农业资源与环境研究所/农业农村部盐碱土改良与利用（滨海盐碱地）重点实验室/江苏省有机固体废弃物资源化协同创新中心，南京 210014

收稿日期:2022-11-14 修回日期:2023-03-06 出版日期:2023-11-15 发布日期:2023-11-10
作者简介:
贺磊，男，1984年出生，副研究员，硕士，主要从事竹木加工、农林废弃资源高值化利用及木材胶黏剂方面的研究。通信地址：330013 江西省南昌市经济技术开发区枫林西大街1629号江西省林业科学院科研楼103室，Tel：0791-83833429，E-mail：55246446@qq.com。
基金资助:
江西省科技厅重大科技研发专项“我国南方香料樟树高效种植与精深加工全产业链关键技术研究与开发”(20203ABC28W016); 江西省林业局樟树研究专项“樟树资源及其香料全产业链开发关键技术研究与推广应用”(2020-04-04); 江苏省重点研发项目“秸秆吸滤法制备生物降解农用制品关键技术研究与产品创制”(BE2020335)

Preparation and Performance Evaluation of Seedling Container from Camphor Processing Residue by Hot Pressing

HE Lei¹(), HUANG Hui¹, GUO Jie¹, DENG Tao¹, FAN Xiaodong²^,³, CHEN Ling³, YONG Cheng³, HUANG Hongying³, SUN Enhui³

¹ Jiangxi Academy of Forestry, Nanchang 330013
² College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037
³ Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences/ Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs/Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210014

Received:2022-11-14 Revised:2023-03-06 Published-:2023-11-15 Online:2023-11-10

摘要/Abstract

摘要：

为拓宽樟树加工剩余物高值化利用途径，以樟树加工剩余物为增强材料，以脲醛预聚物和淀粉胶黏剂为黏合剂，通过热压成型工艺优化制备育苗容器，研究了育苗容器成型性、抗破损率以及成型配比对育苗容器性能的影响。脲醛聚合物(UF)与淀粉胶黏剂(SA)配比为3:7，育苗容器的成型性大于95%，抗破损率达到1.71%±0.06%。湿强剂(WA)与增强剂(ST)比例为5:5，育苗容器成型性大于90%，抗破损率达到1.69%±0.04%。热压成型压力22 MPa、热压温度120℃、不排气及保压时间5.5 min时，育苗容器的拉伸强度及膨胀率性能最佳。

关键词: 樟树加工剩余物, 育苗容器, 热压成型, 性能评价, 高值化利用

Abstract:

In order to broaden the way of high value utilization of camphor processing residues, seedling containers were optimally prepared by hot press molding process, using camphor processing residues as reinforcing material and urea-formaldehyde (UF) prepolymer and starch adhesive (SA) as binder. The effects of seedling container formability, breakage resistance and molding ratio on the performance of seedling containers were studied. When the ratio of UF and SA was 3:7, the molding ability of seedling container was greater than 95%, and the anti-breakage rate was 1.71%±0.06%. When the ratio of WA to ST was 5:5, the molding ability of seedling container was more than 90%, and the anti-breakage rate was 1.69%±0.04%. Under the conditions of 22 MPa pressure, 120℃ temperature, no exhaust and holding pressure for 5.5 min, the tensile strength and expansion rate of seedling container are the best.

Key words: camphor tree processing residues, seedling container, hot pressing, performance evaluation, high value utilization

贺磊, 黄慧, 郭捷, 邓涛, 范肖东, 陈玲, 雍宬, 黄红英, 孙恩惠. 樟树加工剩余物热压成型制备育苗容器及性能评价的研究[J]. 中国农学通报, 2023, 39(32): 72-77.

HE Lei, HUANG Hui, GUO Jie, DENG Tao, FAN Xiaodong, CHEN Ling, YONG Cheng, HUANG Hongying, SUN Enhui. Preparation and Performance Evaluation of Seedling Container from Camphor Processing Residue by Hot Pressing[J]. Chinese Agricultural Science Bulletin, 2023, 39(32): 72-77.

图/表 8

参考文献 22

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育苗期类型		成型性/%	抗破损率/%
UF:SA	1:9	75~80	1.54±0.05
	2:8	85	1.49±0.03
	3:7	>95	1.71±0.06
	4:6	100	2.82±0.11
WA:ST	4:6	80~85	3.74±1.27
	5:5	90~100	1.69±0.04
	6:4	100	1.83±0.07

育苗期类型		成型性/%	抗破损率/%
UF:SA	1:9	75~80	1.54±0.05
	2:8	85	1.49±0.03
	3:7	>95	1.71±0.06
	4:6	100	2.82±0.11
WA:ST	4:6	80~85	3.74±1.27
	5:5	90~100	1.69±0.04
	6:4	100	1.83±0.07

UF:SA	拉伸强度/MPa	膨胀率/%
1:9	4.52±0.29	10.25±0.52
2:8	4.39±0.38	7.32±0.29
3:7	5.75±0.27	6.73±0.33
4:6	6.61±0.41	5.34±0.31

UF:SA	拉伸强度/MPa	膨胀率/%
1:9	4.52±0.29	10.25±0.52
2:8	4.39±0.38	7.32±0.29
3:7	5.75±0.27	6.73±0.33
4:6	6.61±0.41	5.34±0.31

WA:ST	拉伸强度/MPa	膨胀率/%
4:6	4.48±0.39	9.84±0.52
5:5	5.77±0.22	6.58±0.25
6:4	7.86±0.52	4.36±0.48

樟树加工剩余物热压成型制备育苗容器及性能评价的研究

Preparation and Performance Evaluation of Seedling Container from Camphor Processing Residue by Hot Pressing

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序号	A/MPa	B/℃	C/次	D/min	拉伸强度/MPa	膨胀率/%
1	20	110	1	5.0	5.18	7.18
2	20	120	0	5.5	5.84	6.65
3	20	130	2	4.5	5.79	6.74
4	22	110	2	5.5	6.26	6.81
5	22	120	1	4.5	5.59	6.95
6	22	130	0	5.0	5.12	5.81
7	25	110	2	5.0	5.76	7.32
8	25	120	1	5.5	5.24	6.53
9	25	130	0	4.5	5.27	6.54

项目	拉伸强度/MPa				膨胀率/%
项目	A	B	C	D	A	B	C	D
k1	5.24	5.40	5.28	5.25	6.86	7.10	6.33	6.74
k2	5.32	5.42	5.40	5.35	6.52	6.71	6.89	6.77
k3	5.36	5.09	5.24	5.31	6.80	6.36	6.96	6.66
极差	0.12	0.33	0.17	0.10	0.33	0.74	0.62	0.11
优化组合	B2C2A3D2				B2C1A2D3

[1]	贺磊, 孙恩惠, 邓涛, 雍宬, 范肖东, 黄红英. 樟树加工剩余物育苗容器对黄瓜幼苗生长及生理特征的影响[J]. 中国农学通报, 2022, 38(25): 38-46.
[2]	苏杨朱健王平王冬柏林艳. 土壤持水能力研究进展[J]. 中国农学通报, 2013, 29(14): 140-145.