The application of organosilicon modified polyurethane in reinforcing traditional paper
Source abstract
Abstract
Abstract Paper relics are important historical and cultural heritages. However, the paper relics are at risk of ageing, damage and disappearance. In order to delay the aging of paper, improve the strength of paper, solve the problem of poor permeability and stability of traditional resins to paper, the polyurethane was synthesized by polydimethylsiloxane (HTPDMS) and low molecular weight hexamethylene diisocyanate (HDI) trimer, and the chemical and physical properties of paper samples were tested. Results showed the paper coated by HTPDM-modified polyurethane liquid had good mechanical property, the tensile strength was increased from 1105 to 3299 N/m, the folding endurance was increased from 20 to 1024; and had good gloss and brightness; after thermal aging, coated paper can effectively maintain tensile strength, delay folding resistance and tearing strength loss; after acid stability test, the loss ratio of tensile strength was decreased from 34.2 % to 15.7 %, folding endurance was decreased from 57.1 % to 9.7 %; after alkali stability test, the loss ratio of tensile strength was decreased from 29.3 % to 6.6 %, folding endurance was decreased from 82.9 % to 22.0 %. Therefore, the prepared polyurethane material has great application prospects in the protection of paper.
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Research context
OpenAlex topics: Cultural Heritage Materials Analysis · Building materials and conservation · Infrastructure Maintenance and Monitoring
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical Engineering , Zhengzhou University , Zhengzhou , China
Zhengzhou Museum , Zhengzhou , China
School of Chemical Engineering , Zhengzhou University , No. 100 Science Road , Zhengzhou , Henan , China , (present address)
References (24)
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