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Preparation and characterization of high chemical durability and low thermal expansion borosilicate glass-ceramics by recycling of borosilicate glass

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Inorganic chemistry

Abstract

Borosilicate glass recycling is a challenge because it has high melting point and different chemical structure which makes it non-recyclable in the glass industry. This work focuses on borosilicate recycling through the preparation of a low thermal expansion and chemically durable borosilicate glass-ceramic (BsGC). Low thermal expansion and high chemical durability ceramics are advantageous in many applications such as lab supplies, corning ware, automobile components, and other low expansion products that are resistant to thermal shock. Kaolin and borosilicate were chosen for the preparation of glass-ceramic, because they have low thermal expansion and good chemical durability. BsGC was prepared by sintering borosilicate glass waste (e.g., Pyrex laboratory glassware, household glass) and kaolin at different temperatures (750-900 ° C). Water absorption method was used to measure the apparent porosity of the prepared composites. Surface morphology of the prepared BCGs was investigated using scanning electron microscopy (SEM). Phase composition of the prepared BGC samples was characterized sing X-ray diffraction technique (XRD). The XRD results showed that at sintering of 750 °C a monocrystalline quartz was only existing. By increasing sintering temperature up to 800°C the quartz phase decreased, while at 850 oC the quartz phase completely disappeared. The sintered BCG composites obtained exhibited low coefficients of thermal expansion in the range of 48 x 10-7 oC-1 and exhibited high chemical durability.

DOI

10.21608/ejchem.2021.54579.3139

Keywords

recycling, Borosilicate glass, kaolin, Glass-ceramic

Authors

First Name

Osama

Last Name

Saad

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, 11566, Egypt

Email

osa02020@gmail.com

City

-

Orcid

-

First Name

Abdel Naby M.

Last Name

Salem

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, 11566, Egypt

Email

-

City

-

Orcid

-

First Name

Ibrahim H. A.

Last Name

Badr

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, 11566, Egypt

Email

-

City

-

Orcid

-

Volume

64

Article Issue

4

Related Issue

22914

Issue Date

2021-04-01

Receive Date

2020-12-21

Publish Date

2021-04-01

Page Start

2,193

Page End

2,199

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_142914.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=142914

Order

46

Type

Review Articles

Type Code

444

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Preparation and characterization of high chemical durability and low thermal expansion borosilicate glass-ceramics by recycling of borosilicate glass

Details

Type

Article

Created At

22 Jan 2023