基于响应曲面法制备高性能建筑石膏

Preparation of High-Performance Building Gypsum Based on Response Surface Methodology

摘要

为了对改性后高性能建筑石膏的各项性能进行优化分析,采用0.20%的植物蛋白缓凝剂对建筑石膏进行缓凝。通过响应曲面法设计聚醚改性有机硅消泡剂、可再分散性乳胶粉和羟丙基甲基纤维素3种外加剂的复掺试验,对试验响应指标进行分析。采用Design-Expert 12软件对响应指标设置优化条件,基于Optimization功能生成各外加剂掺量的优化参数,并对优化结果进行可取性分析验证。结果表明,建筑石膏各外加剂的最佳掺量为聚醚改性有机硅消泡剂1.051%、可再分散性乳胶粉0.827%、羟丙基甲基纤维素0.141%。将试验结果与未改性建筑石膏进行对比,发现改性后高性能建筑石膏的绝干抗折强度、绝干抗压强度、拉伸黏结强度、保水率、软化系数和孔隙率6项性能大幅优化。

Abstract

In order to optimize the performance of modified high-performance building gypsum, a 0.20% vegetable protein retarder was used to delay the setting time of the building gypsum. The response surface methodology was employed to design a series of experiments involving the combined use of three admixtures: polyether modified silicone defoamer, redispersible latex powder, and hydroxypropyl methylcellulose. The experimental response indicators were analyzed, and the Design-Expert 12 software was used to set optimization conditions for these response indicators. Based on the Optimization function, optimal parameters for the dosage of each admixture were generated, and the feasibility of the optimization results was verified. The results indicated that the optimal admixture dosages for the high-performance building gypsum were 1.051% polyether modified silicone defoamer, 0.827% redispersible latex powder, and 0.141% hydroxypropyl methylcellulose. When comparing the modified high-performance building gypsum with the unmodified version, significant improvements were observed in six performance metrics: absolute dry flexural strength, absolute dry compressive strength, tensile bond strength, water retention rate, softening coefficient, and porosity.

关键词

高性能建筑石膏 / 建筑石膏外加剂 / 响应曲面法 / 绝干抗折强度 / 绝干抗压强度 / 孔隙率

Key words

high-performance building gypsum / building gypsum admixture / response surface methodology / absolute dry flexural strength / absolute dry compressive strength / porosity

参考文献

[1] QIAN W M, NING P, ZHU H D, et al. Two—step thermal decomposition mechanism of phosphogypsum for resource utilization[J]. The Canadian Journal of Chemical Engineering, 2023, 101(1): 328-336.

[2] YANG J, LIU S Y, WANG Y F, et al. Phosphogypsum resource utilization based on thermodynamic analysis[J]. Chemical Engineering & Technology, 2022, 45(5): 776-790.

[3] WU F H, REN Y C, QU G F, et al. Utilization path of bulk industrial solid waste: a review on the multi—directional resource utilization path of phosphogypsum[J]. Journal of Environmental Management, 2022, 313: 114957.

[4] SILVA L F O, PINTO D, OLIVEIRA M L S, et al. Dispersion of hazardous nanoparticles on beaches around phosphogypsum factories[J]. Marine Pollution Bulletin, 2021, 169: 112493.

[5] CHERNYSH Y, YAKHNENKO O, CHUBUR V, et al. Phosphogypsum recycling: a review of environmental issues, current trends, and prospects[J]. Applied Sciences, 2021, 11(4): 1575.

[6] ZHANG Y Y, YANG J S, CAO X Y . Effects of several retarders on setting time and strength of building gypsum[J]. Construction and Building Materials, 2020, 240: 117927.

[7] ZHANG L J, MO K H, YAP S P, et al. Mechanical strength, water resistance and drying shrinkage of lightweight hemihydrate phosphogypsum—cement composite with ground granulated blast furnace slag and recycled waste glass[J]. Construction and Building Materials, 2022, 345: 128232.

[8] DOLEŽELOVÁ M, SCHEINHERROVÁ L, KREJSOVÁ J, et al. Investigation of gypsum composites with different lightweight fillers[J]. Construction and Building Materials, 2021, 297: 123791.

[9] 吴超, 杨林, 李玮, 等 . 轻质抹灰磷建筑石膏性能影响机制研究[J]. 硅酸盐通报, 2021, 40(2): 565-572.

[10] WU C, YANG L, LI W, et al. Performance influence mechanism of lightweight plastering phosphorus building gypsum[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(2): 565-572.

[11] 易芸, 董永刚, 杨林, 等 . 轻质磷建筑石膏实心砌块的制备研究[J]. 硅酸盐通报, 2020, 39(6): 1848-1853.

[12] YI Y, DONG Y G, YANG L, et al. Research on preparation of lightweight building phosphogypsum solid blocks[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(6): 1848-1853.

[13] 储怡鑫 . 磷石膏材料改性及高性能建筑石膏制备应用研究[D]. 抚州: 东华理工大学, 2023.

[14] CHU Y X . Study on modification of phosphogypsum material and preparation and application of high performance building gypsum[D]. Fuzhou: East China University of Technology, 2023.

[15] OJEDA—LÓPEZ R, AGUILAR—HUERTA E, MAIA D A S, et al. Tailoring synthesis conditions of carbon microfibers to enhance the microporosity, CO₂ and CH₄ adsorption by using the response surface methodology [J]. Microporous and Mesoporous Materials, 2020, 305: 110333.

[16] FREYA R, SENTHIL R . Optimal evaluation of the rheological parameters for STF dampers in semi—rigid joints of steel structures using response surface method[J]. Advances in Civil Engineering, 2022, 2022(1): 1769739.

[17] NIE Q, LI M Q, ZHOU S Z . Structural parameter optimization of the helical blade of the variable—pitch, downhole, cyclone separator based on the response surface method[J]. Energies, 2022, 15(18): 6839.

[18] GUO J X, HU S W, ZHAO X, et al. Compressive strength performance of additives for cement—based grouting material with low water—binder ratio by response surface methodology[C]// Proceedings of the 8th International Conference on Civil Engineering. Singapore: Springer, 2022: 368-379.

[19] 黎方潜 . 聚醚改性有机硅消泡剂的制备及性能评价[D]. 北京: 华北电力大学, 2017.

[20] LI F Q . Preparation and evaluation of polyether modified polysiloxane defoamer[D]. Beijing: North China Electric Power University, 2017.

[21] 黄滔, 彭小芹, 王淑萍, 等 . 蛋白类缓凝剂对建筑石膏的适应性[J]. 建筑材料学报, 2018, 21(4): 608-613.

[22] HUANG T, PENG X Q, WANG S P, et al. Adaptability of protein retarder for calcined gypsum[J]. Journal of Building Materials, 2018, 21(4): 608-613.

[23] 李晶辉, 赵文杰 . 可再分散乳胶粉的研究进展[J]. 硅酸盐通报, 2016, 35(12): 4038-4043.

[24] LI J H, ZHAO W J . Research development of dispersible latex powder[J]. Bulletin of the Chinese Ceramic Society, 2016, 35(12): 4038-4043.

[25] 江浩, 易进翔, 谢胜军, 等 . 基于响应面法的片麻岩尾矿烧结砖优化工艺研究[J]. 科学技术与工程, 2023, 23(20): 8795-8803.

[26] JIANG H, YI J X, XIE S J, et al. Process optimization of gneiss tailings sintered brick based on response surface method[J]. Science Technology and Engineering, 2023, 23(20): 8795-8803.

[27] 李少秋, 陈伟, 张云英, 等 . 基于响应曲面法的聚合氯化铝对矿井废水中氟离子混凝去除工艺优化[J]. 环境工程学报, 2023, 17(5): 1514-1522+1394.

[28] LI S Q, CHEN W, ZHANG Y Y, et al. Optimization of coagulation removal of fluoride ions from mine wastewater by polyaluminum chloride based on response surface methodology[J]. Chinese Journal of Environmental Engineering, 2023, 17(5): 1514-1522+1394.

[29] 熊孟雪, 杨敏, 陈前林 . 基于Box—Behnken响应面法的钠离子吸附剂的制备工艺条件优化[J]. 硅酸盐通报, 2022, 41(7): 2360-2367.

[30] XIONG M X, YANG M, CHEN Q L . Optimization of preparation process conditions for sodium ion adsorbent based on box—behnken response surface methodology[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(7): 2360-2367.

[31] 国家市场监督管理总局, 国家标准化管理委员会 . 抹灰石膏:GB/T 28627—2023[S]. 北京: 中国标准出版社, 2023.

[32] State Administration for Market Regulation, Standardization Administration of the People′s Republic of China. Gypsum plaster: GB/T 28627—2023[S]. Beijing: Standards Press of China, 2023.

基金资助

国家自然科学基金资助项目(42167024)