Paper Title:
Study of Interior Wall Coating Based on Metakaolinand Modified Starch
  Abstract

In order to reduce the emission of volatile organic compounds (VOCs) and save the non-renewable resource, a novel interior wall coating with high bond strength based on metakaolin and modified starch was developed. The process on researches includes three steps. Firstly, cassava starch was reformed including etherification, oxidation, conjugate crosslinking and drying to gain natural polymer glue powder which can be used as forming agent, and a dispensation in producing environment friendly paint for interior wall coating was preliminarily obtained. The dispensation consists of forming agent, calcium carbonate, French chalk, chitosan and mildew preventive. Secondly, the process on metakaolin was studied. Metakaolin shows hydration Characteristics and can make interior wall coating have bond strength and resistance to water. At last, the dispensations and processes in obtaining starch glue, metakaolin and paint powder were decided respectively, and the data in gauging bonding force, resistance to water and the performance of interior wall coating were gained. The research on forming agent was as following: the mixture of cassava starch and NaOH was stirred, and pulverized to be sieved by100 mesh. After reacted stirringly with chloroacetic acid for 1.5h at room temperature, the mixture was oxidized by oxidant for 2h and crosslinked by crosslinking agent for 1h respectively to obtain forming agent. The mass fraction of NaOH, chloroacetic acid, oxidant and crosslinking agent to cassava starch were 6%, 5%, 6% and 0.8%, respectively. The Kaolin selected must contain high percents of Al2O3 and SiO2 , and was calcined at 700°C for 5h to have metakaolin as additive for interior wall coating to improve bond strength and resistance to water. The composition of interior wall coating optimized by orthogonal test is about: 4% of starch glue, 6% of metakaolin, 80% of calcium carbonate, 9.7% of French chalk, 0.1% of chitosan and 0.2% of mildew preventive. The interior wall coating is environmental benign material in building industry.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
1030-1035
DOI
10.4028/www.scientific.net/AMR.239-242.1030
Citation
R. J. Zhou, M. Huang, S. S. Qiu, "Study of Interior Wall Coating Based on Metakaolinand Modified Starch", Advanced Materials Research, Vols. 239-242, pp. 1030-1035, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Min Yang, Qing Chen Sun
Abstract:Experiments were performed to investigate the properties of fly ash-calcined phosphogypsum (PG) cementitous materials with PG different...
816
Authors: Xu Yan Song, Jing Yun Han, Zhi Hai Gao
Chapter 2: Frontiers of Building Materials
Abstract:Through determining Ca(OH)2 content and chemically combined water content, hydration degree of cement with added-calcium thermal...
833
Authors: You Jun Lu, Hong Fang Shen, Yan Ming Wang
Composites
Abstract:High-temperature mechanical properties, machinability, oxidation resistance and thermal shock resistance of different content of carbon...
276
Authors: Zi Ying Gu, Hang Yu Gu, Xin Ke Peng, Yong Xiu Li
Chapter 6:Nano and Powder Materials Preparation
Abstract:The cerium oxide powder has been modified with mechanically chemical method. The effect of modifier, reaction time, calcine temperature, and...
184
Authors: Li Guang Xiao, Zhuang Zhao, Rui Bo Li, Jun Jun Hu
Cements and Concretes
Abstract:This test is mainly diatomaceous earth mineral admixture to study the content, calcination temperature, calcination time, grinding time on...
371