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1512

Preparation of Self Hardening-modelling Polyurethane for Wood Repairing and Cracks Injection

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Last updated: 01 Jan 2025

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Abstract

 Self hardening composite as a modelling clay was prepared from polyurethane, two parts (A) and (B) where (A) contains polyol (polyether), vinyl acetate versatic ester copolymer (VAcVe) and magnesium silicate or wood powder and (B) contains toluene diisocyanate (TDI) as a hardening agent. The two parts mixed thoroughly giving soft putty like feel, open working time 1-2 h and cures hard overnight (24 h full cure). Factors affecting working time and full cure were evaluated. Also, measurements of surface hardness, compressive strength, scanning electron microscopy (SEM), water absorption and effect of ionizing radiation were studied. The suggestion for using the prepared polyurethane composite as clay dries as hard as a rock in the field of wood repair and cracks injection for building walls were recommended.

DOI

10.21608/ejrsa.2014.1512

Keywords

polyurethane, modelling clay, Radiation, wood repair and cracks injection

Volume

27

Article Issue

1

Related Issue

324

Issue Date

2014-12-01

Receive Date

2014-04-03

Publish Date

2014-12-31

Page Start

107

Page End

117

Print ISSN

1110-0303

Online ISSN

2314-8527

Article File

EJRSA_Volume 27_Issue 1_Pages 107-117.pdf

PDF . 476.4kB

Link

https://ejrsa.journals.ekb.eg/article_1512.html

Detail API

https://ejrsa.journals.ekb.eg/service?article_code=1512

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8

Type

Original Article

Type Code

136

Publication Type

Journal

Publication Title

Egyptian Journal of Radiation Sciences and Applications

Publication Link

https://ejrsa.journals.ekb.eg/

MainTitle

Preparation of Self Hardening-modelling Polyurethane for Wood Repairing and Cracks Injection

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Article

Created At

22 Jan 2023