Preparation of titanium dioxide/talc composite filler and its application in decorative base paper

doi:10.16085/j.issn.1000-6613.2023-1566

Abstract

Abstract:

Titanium dioxide (TiO₂)/talc composite filler was prepared by emulsion method and used in decorative base paper. Its preparation process was optimized by combining the pseudo-ternary phase diagram and response surface method of W/O emulsion. It was found that cyclohexane was more suitable for oil phase than n-heptane, and the amount of n-butanol affected the stability of emulsion. The optimum preparation process of the composite filler was Tween80/n-butanol=1∶1 (weight ratio), emulsifier/cyclohexane=4∶6 (weight ratio), water/cyclohexane=1∶3 (weight ratio), talc/tetrabutyltitanate (TBT)= 1∶4 (weight ratio), resulting in an opacity of 97.0% and a whiteness of 84.0% ISO for decorative base paper. The composite filler was characterized by the methods such as scanning electron microscopy (SEM), X-ray spectrometer (EDS) and X-ray diffraction (XRD). The results showed that talc was coated with anatase type TiO₂.

Key words: decorative base paper, titanium dioxide, talcum, composite filler, emulsion method

摘要：

采用乳液法制备二氧化钛（TiO₂）/滑石粉复合填料，并将其应用在装饰原纸中。结合油包水型（W/O）乳液的拟三元相图，寻找合适的乳液体系，并利用响应曲面试验对TiO₂/滑石粉复合填料的制备工艺进行优化。结果表明，环己烷比正庚烷更适合作为油相，正丁醇的用量影响着乳液的稳定性；复合填料制备的最优工艺为：Tween80/正丁醇的质量比为1∶1，乳化剂/环己烷的质量比为4∶6，水/环己烷的质量比为1∶3，滑石粉/钛酸四丁酯（TBT）质量比为1∶4，在此条件下制备的复合填料加填在装饰原纸中，得到的不透明度为97.0%，白度为84.0% ISO。通过扫描电子显微镜（SEM）、X射线能谱仪（EDS）及X射线衍射（XRD）分析方法对复合填料进行表征，结果显示，滑石粉表面包覆了一层致密均匀的TiO₂，其晶型结构为锐钛矿型。

关键词: 装饰原纸, 二氧化钛, 滑石粉, 复合填料, 乳液法

CLC Number:

TS753.9

ZHANG Yan, QIAO Wenpu, HUANG Jingjun, SUN Xindi, LIU Zhong, WU Haibiao. Preparation of titanium dioxide/talc composite filler and its application in decorative base paper[J]. Chemical Industry and Engineering Progress, 2024, 43(10): 5642-5652.

张妍, 乔文朴, 黄靖钧, 孙鑫娣, 刘忠, 吴海标. 复合二氧化钛的制备及在装饰原纸中的应用[J]. 化工进展, 2024, 43(10): 5642-5652.

Figures/Tables 19

References 25

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配方	Tween80∶正丁醇	乳化剂∶油相	水相∶油相
a	1∶1	2∶8	1∶4
b	1∶1	4∶6	1∶2
c	1∶1	5∶5	1∶2
d	1∶1	7∶3	1∶3
e	2∶1	4∶6	3∶5
f	1∶2	4∶6	2∶3

配方	Tween80∶正丁醇	乳化剂∶油相	水相∶油相
a	1∶1	2∶8	1∶4
b	1∶1	4∶6	1∶2
c	1∶1	5∶5	1∶2
d	1∶1	7∶3	1∶3
e	2∶1	4∶6	3∶5
f	1∶2	4∶6	2∶3

水平	因素
水平	A（水相∶油相）	B（乳化剂∶油相）	C（Tween80∶正丁醇）	D（滑石粉∶TBT）
-1	1∶4	3∶7	1∶2	1∶5
0	1∶2	4∶6	1∶1	1∶4
1	3∶4	5∶5	2∶1	1∶3

水平	因素
水平	A（水相∶油相）	B（乳化剂∶油相）	C（Tween80∶正丁醇）	D（滑石粉∶TBT）
-1	1∶4	3∶7	1∶2	1∶5
0	1∶2	4∶6	1∶1	1∶4
1	3∶4	5∶5	2∶1	1∶3

乳化剂∶烷烃	体系中水的质量分数%
乳化剂∶烷烃	环己烷	正庚烷
1∶9	7.6	3.6
2∶8	16.0	11.8
3∶7	19.8	17.5
4∶6	25.9	19.0
5∶5	21.8	15.3
6∶4	18.6	13.4
7∶3	14.2	10.5
8∶2	11.1	10.1
9∶1	9.2	7.4