Chemistry and Industry of Forest Products ›› 2019, Vol. 39 ›› Issue (1): 53-60.doi: 10.3969/j.issn.0253-2417.2019.01.008
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Na ZHANG(),Lihong HU*(),Yajun GUO,Yonghong ZHOU
Received:
2018-08-30
Online:
2019-02-25
Published:
2019-03-14
Contact:
Lihong HU
E-mail:zhangna060625@163.com;zhlh990907@sina.com
Supported by:
CLC Number:
Na ZHANG,Lihong HU,Yajun GUO,Yonghong ZHOU. Characterization of Phenolic Foam Modified by Silanized Nano-SiO2[J]. Chemistry and Industry of Forest Products, 2019, 39(1): 53-60.
Table 1
The formula of phenolic resin modified with silanized nano-SiO2"
树脂 resin | 苯酚/g phenol | 正硅酸四乙酯/g TEOS | SiO2/g | 硅烷偶联剂/g silane coupling agent | NH3·H2O/g | H2O/g | 木质素 lignin/g |
PR1 | 170 | 0 | 0 | 0 | 0 | 0 | 30 |
PR2 | 170 | 0.644 | 0.2 | 2 | 0.818 | 1.022 | 30 |
PR3 | 170 | 3.220 | 1 | 1 | 4.089 | 5.112 | 30 |
PR4 | 170 | 3.220 | 1 | 2 | 4.089 | 5.112 | 30 |
PR5 | 170 | 3.220 | 1 | 3 | 4.089 | 5.112 | 30 |
PR6 | 170 | 6.440 | 2 | 2 | 8.180 | 10.220 | 30 |
Table 4
Effect of the content of silane coupling agent on the mechanical properties of foam"
条件 condation | 压缩强度/MPa compressive strength | 弯曲强度/MPa bending strength | |
硅烷偶联剂 silane coupling agent | 0 g | 0.255 | 0.301 |
1 g | 0.367 | 0.377 | |
2 g | 0.442 | 0.552 | |
3 g | 0.328 | 0.440 | |
硅脂 TEOS | 0 g | 0.255 | 0.301 |
0.644 g | 0.370 | 0.352 | |
3.220 g | 0.442 | 0.552 | |
6.440 g | 0.323 | 0.475 |
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