EFFECT OF DIBUTYL PHTHALATE AND DIOCTYL PHTHALATE PLASTICIZER RATIOS ON THE PROPERTIES OF NITROCELLULOSE-BASED ADHESIVES

Lưu Văn Tuynh; Phan Văn Trường; Nguyễn Văn Thành; Nguyễn Trung Thủy

doi:10.34238/tnu-jst.13646

EFFECT OF DIBUTYL PHTHALATE AND DIOCTYL PHTHALATE PLASTICIZER RATIOS ON THE PROPERTIES OF NITROCELLULOSE-BASED ADHESIVES

About this article

Received: 19/09/25 Revised: 24/10/25 Published: 27/10/25

Authors

1. Luu Van Tuynh , Institute of Tropical Durability - Joint Vietnam-Russia Tropical Science and Technology Research Center
2. Phan Van Truong, Institute of Tropical Durability - Joint Vietnam-Russia Tropical Science and Technology Research Center
3. Nguyen Van Thanh, Institute of Tropical Durability - Joint Vietnam-Russia Tropical Science and Technology Research Center
4. Nguyen Trung Thuy, Air Force - Air Defence Academy

Abstract

This study focuses on evaluating the effects of the plasticizers dibutyl phthalate and dioctyl phthalate on the properties of nitrocellulose-based adhesives, with the aim of optimizing application performance under Vietnam’s hot and humid conditions. Adhesive samples containing 20-60% plasticizer by weight (relative to nitrocellulose) were examined for viscosity, adhesion strength, and film flexibility. In particular, the samples were tested for their sealing ability in aqueous environments and their thermal-humidity resistance when applied to black powder charges. The results showed that dibutyl phthalate achieved optimal performance at a ratio of 33-36%, producing stable films with fast drying time, good moisture resistance, and high mechanical strength. Dioctyl phthalate performed well at 43-46%, but exhibited longer drying times and tended to lose stability at higher concentrations. Compared to dioctyl phthalate, dibutyl phthalate demonstrated superior transparency, durability, and protective capability under harsh environmental conditions, while requiring a lower dosage - making it more suitable for industrial production and defense-related applications. The results of this research provide a scientific basis for selecting suitable plasticizers in nitrocellulose adhesive formulations and support the development of specialized bonding materials for use in harsh environmental conditions.

Keywords

Nitrocellulose-based adhesives; Plasticizer; Dibutyl phthalate; Dioctyl phthalate; Phthalate ester

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DOI: https://doi.org/10.34238/tnu-jst.13646

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