空心玻璃微珠/全芳香族共聚酯复合泡沫的构筑及其热学性能

韩建秋; 许小燕; 肖勇波; 沈燕; 施煜楠; 戴吉; 邱军

doi:10.13801/j.cnki.fhclxb.20200720.001

空心玻璃微珠/全芳香族共聚酯复合泡沫的构筑及其热学性能

doi: 10.13801/j.cnki.fhclxb.20200720.001

韩建秋^1,,
许小燕^1,,
肖勇波^1,,
沈燕^2,,
施煜楠^3,,
戴吉^3,,
邱军^{3, 4, ,}

1.
中电建路桥集团有限公司，北京 100120
2.
江苏宏远科技工程有限公司，常州 213100
3.
同济大学　材料科学与工程学院，上海 201804
4.
同济大学　先进土木工程材料教育部重点实验室，上海 201804

基金项目: 常州市科技支撑计划(工业)(CE20180015)

详细信息

通讯作者:
邱军，博士，博士生导师，研究方向为聚合物基复合材料　 E-mail：qiujun@tongji.edu.cn

中图分类号: TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2020-03-26
- 录用日期: 2020-07-16
- 网络出版日期: 2020-07-20
- 刊出日期: 2021-01-15

Construction and enhanced thermal properties of hollow glass beads/ aromatic thermosetting polyester composite foam

HAN Jianqiu^1
,,
XU Xiaoyan^1
,,
XIAO Yongbo^1
,,
SHEN Yan^2
,,
SHI Yu’nan^3
,,
DAI Ji^3
,,
QIU Jun^{3, 4
, ,}

1.
Powerchina Roadbridge Group Co. Ltd, Beijing 100120, China
2.
Jiangsu Hongyuan Technology Engineering Co. Ltd, Changzhou 213100, China
3.
School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
4.
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China

摘要

摘要: 本研究将空心玻璃微珠(HGB)引入到全芳香族热固性共聚酯(ATPE)发泡体系中制备了HGB/ATPE复合泡沫，并研究了HGB的含量和泡沫性能对于复合泡沫体系的影响。当玻璃微珠改性后，HGB/ATPE复合泡沫的比强度为26.2 MPa/(g·cm⁻³)；HGB的加入也使复合体系热性能和阻燃性能有较大提高，HGB/ATPE复合泡沫的热分解温度、玻璃化转变温度及热变形温度分别为494.18℃、230.47℃和191.00℃，极限氧指数可达到35%~37%。
- 空心玻璃微珠 /
- 全芳香族共聚酯 /
- 原位自由发泡 /
- 阻燃性能 /
- 热学性能
Abstract: In this study, hollow glass beads (HGB) were introduced into an aromatic thermosetting polyester (ATPE) based foam to prepare HGB/ATPE composite foam, and effect of content of HGB and foaming conditions on the properties of HGB/ATPE composite foam were investigated. After modification, the specific strength of the HGB/ATPE composite foam can reach 26.2 MPa/(g·cm⁻³), respectively. Moreover, the addition of HGB also greatly improves thermal properties and flame resistance performance of the HGB/ATPE composite foam. The thermal decomposition temperature, glass transition temperature and heat distortion temperature of the HGB/ATPE composite foam are 494.18℃, 230.47℃ and 191.00℃, respectively, and the limiting oxygen index can reach 35%–37%.
- hollow glass beads /
- wholly aromatic co-polyester /
- free foaming in situ /
- flame resistance /
- thermal property

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图 1 含有端羧基预聚物C1和含有端酯基预聚物A1的结构式

Figure 1. Structural formula of prepolymer C1 containing a terminal carboxyl and prepolymer A1 containing a terminal ester

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图 2 空心玻璃微珠(HGB)含量对HGB/全芳香族热固性共聚酯(ATPE)复合泡沫微观形貌的影响

Figure 2. Effect of hollow glass beads (HGB) content on micromorphology of HGB/aromatic thermosetting polyester (ATPE) composite foams ((a) 5.4wt% HGB; (b) 10.3wt% HGB; (c) 11.4wt% HGB; (d) 12.5wt% HGB)

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图 3 发泡温度(a)和发泡时间(b)对HGB/ATPE复合泡沫比强度的影响

Figure 3. Effect of foaming temperature (a) and foaming time (b) on specific strength of HGB/ATPE composite foams

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图 4 HGB/ATPE和泡沫的储能模量和损耗模量

Figure 4. Storage modulus and loss modulus of HGB/ATPE composite foam

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图 5 HGB/ATPE复合泡沫的DMA曲线

Figure 5. DMA curve of HGB/ATPE composite foam

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图 6 ATPE泡沫和HGB/ATPE复合泡沫的TG和DTG曲线

Figure 6. TG and DTG curves of ATPE foam and HGB/ATPE composite foam

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图 7 发泡温度对HGB/ATPE复合泡沫阻燃性能的影响

Figure 7. Effect of foaming temperature on flame resistance of HGB/ATPE composite foam

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图 8 发泡时间对HGB/ATPE复合泡沫阻燃性能的影响

Figure 8. Effect of foaming time on flame resistance of HGB/ATPE composite foam

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图 9 HGB/ATPE复合泡沫燃烧后的照片: (a)横截面处; (b)表面发白现象

Figure 9. Photographs of HGB/ATPE composite foam after burning: (a) at cross-section; (b) surface blushing

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表 1 对苯二酚二乙酸酯(HQDA)和4-乙酰氧基苯甲酸(ABA)的原料配比

Table 1. Proportion of raw materials of synthesizing hydroquinone diacetate (HQDA) and 4-acetoxybenzoic acid (ABA)

	HQDA	ABA
AA/mL	252	192
HQ/g	132	—
HBA/g	—	132
Catalyst/g	4.8 (4-MBSA)	7.64 (SH)
Oil bath temperature/℃	100	110
Stirring time/min	30	20
Notes: AA—Acetic anhydride; HQ—Hydroquinone; HBA—p-Hydroxybenzonic acid; SH—NaOH; 4-MBSA—4-Methylbenzenesulfonic acid.

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表 2 不同固化温度下HGB/ATPE复合泡沫的热变形温度

Table 2. Thermal deformation temperature of HGB/ATPE composite foams under different curing temperatures

Curing temperature/℃	Critical temperature /℃	Strength retention under criticaltemperature/%
230	210	79.0
240	180	76.3
250	165	75.8
260	160	75.9
270	150	70.3
Note: The strength of the sample will drop rapidly when it reaches a certain temperature, which is called critical temperature.

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表 3 HGB/ATPE泡沫高温下的压缩性能

Table 3. Compression properties of HGB/ATPE foam at high temperature

Foam	Heat distortion temperature/℃
HGB/ATPE	191
PMI(ROHACELL 51WF)	205^[25]
AN/MAA/AM	205^[26]
Cross-linked PVC	82^[27]
Notes: PMI—Polymethylacrylimide; AN/MAA/AM—Acrylonitrile/mezhacrylic acid/acrylamide terpolymer; PVC—Polyvinyl chloride.

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