Viscoelastic and thermal properties of linseed oil-based ceramer coatings

Abstract

Dynamic mechanical thermal analysis (DMTA) was used to determine the crosslink density and glass transition temperature of various ceramer coatings. The metal‐oxide ceramer coatings were developed using linseed oil as the organic phase with titanium isopropoxide, and zirconium propoxide as the inorganic sol‐gel precursors. The viscoelastic characteristics and tensile properties were investigated as a function of sol‐gel precursor type and content. The phase morphology, and thermal decomposition of these ceramer coatings were evaluated using small‐angle X‐ray scattering (SAXS), and thermal gravimetric analysis (TGA), respectively. The sol‐gel precursor type and content were found to effect the crosslink density, glass transition temperature, and tensile modulus. The morphology of these ceramer coatings was found to primarily depend on sol‐gel precursor concentration. TGA revealed that the thermal history of the ceramer coatings also depended on sol‐gel precursor concentration.

Toughening of silane modified bis‐phenol‐A epoxides

“…All data suggested a first order interference attributable to co‐network, suggestive of microphase separation between the short‐range periodicity and the scattering intensity resulting from co‐continuous network in which the pigments selectively resided in the siloxane phase 33 . According to previous reports, as the sol–gel precursor concentration increased, the metal‐oxo‐clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal‐oxo‐clusters in the organic matrix 34,35 . This result is consistent with the data of ASE formulations.…”

“…33 According to previous reports, as the sol-gel precursor concentration increased, the metal-oxo-clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal-oxo-clusters in the organic matrix. 34,35 This result is consistent with the data of ASE formulations.…”

Toughening of silane modified bis‐phenol‐A epoxides

“…All data suggested a first order interference attributable to co‐network, suggestive of microphase separation between the short‐range periodicity and the scattering intensity resulting from co‐continuous network in which the pigments selectively resided in the siloxane phase 33 . According to previous reports, as the sol–gel precursor concentration increased, the metal‐oxo‐clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal‐oxo‐clusters in the organic matrix 34,35 . This result is consistent with the data of ASE formulations.…”

“…33 According to previous reports, as the sol-gel precursor concentration increased, the metal-oxo-clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal-oxo-clusters in the organic matrix. 34,35 This result is consistent with the data of ASE formulations.…”

Blown Soybean Oil Ceramer Coatings for Corrosion Protection

“…[21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors. [20] As a consequence of the previously reported tetraethoxysilane (TEOS)/oligomer/polyurea and urethane investigation, [20d] it was of particular interest to systematically investigate the effect of sol-gel precursor on corrosion performance of the blown soybean oil-based ceramer coatings. The work described here is an investigation of the corrosion protection afforded by a blown soybean oil ceramer coating system as a function of sol-gel precursor.…”

“…[20][21][22][23][24][25][26][27][28] The performance of the blown soybean oil ceramer coatings was dependent on the blowing time, and the type and amount of sol-gel precursor used. [21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors.…”

Model Reaction Study on the Interaction between the Inorganic and Organic Phases in Drying Oil Based Ceramer Coatings

“…Pigments used in coating formulations are used for light absorbance and scattering and thus are generally on the order of 0.1−10 μm in size . As stated previously, the SAXS data indicated that the inorganic domains are much smaller and on the order of angstroms . As a result, the surface area of the pigments is much smaller than the inorganic domains in ceramer coatings, and therefore a direct comparison is difficult.…”

Toughening of silane modified bis‐phenol‐A epoxides

“…All data suggested a first order interference attributable to co‐network, suggestive of microphase separation between the short‐range periodicity and the scattering intensity resulting from co‐continuous network in which the pigments selectively resided in the siloxane phase 33 . According to previous reports, as the sol–gel precursor concentration increased, the metal‐oxo‐clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal‐oxo‐clusters in the organic matrix 34,35 . This result is consistent with the data of ASE formulations.…”

“…33 According to previous reports, as the sol-gel precursor concentration increased, the metal-oxo-clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal-oxo-clusters in the organic matrix. 34,35 This result is consistent with the data of ASE formulations.…”

Blown Soybean Oil Ceramer Coatings for Corrosion Protection

“…[21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors. [20] As a consequence of the previously reported tetraethoxysilane (TEOS)/oligomer/polyurea and urethane investigation, [20d] it was of particular interest to systematically investigate the effect of sol-gel precursor on corrosion performance of the blown soybean oil-based ceramer coatings. The work described here is an investigation of the corrosion protection afforded by a blown soybean oil ceramer coating system as a function of sol-gel precursor.…”

“…[20][21][22][23][24][25][26][27][28] The performance of the blown soybean oil ceramer coatings was dependent on the blowing time, and the type and amount of sol-gel precursor used. [21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors.…”

Model Reaction Study on the Interaction between the Inorganic and Organic Phases in Drying Oil Based Ceramer Coatings

“…Pigments used in coating formulations are used for light absorbance and scattering and thus are generally on the order of 0.1−10 μm in size . As stated previously, the SAXS data indicated that the inorganic domains are much smaller and on the order of angstroms . As a result, the surface area of the pigments is much smaller than the inorganic domains in ceramer coatings, and therefore a direct comparison is difficult.…”

Toughening of silane modified bis‐phenol‐A epoxides

“…All data suggested a first order interference attributable to co‐network, suggestive of microphase separation between the short‐range periodicity and the scattering intensity resulting from co‐continuous network in which the pigments selectively resided in the siloxane phase 33 . According to previous reports, as the sol–gel precursor concentration increased, the metal‐oxo‐clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal‐oxo‐clusters in the organic matrix 34,35 . This result is consistent with the data of ASE formulations.…”

“…33 According to previous reports, as the sol-gel precursor concentration increased, the metal-oxo-clusters network becomes larger and concurrently, it decreases the average distance between the inorganic metal-oxo-clusters in the organic matrix. 34,35 This result is consistent with the data of ASE formulations.…”

Blown Soybean Oil Ceramer Coatings for Corrosion Protection

“…[21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors. [20] As a consequence of the previously reported tetraethoxysilane (TEOS)/oligomer/polyurea and urethane investigation, [20d] it was of particular interest to systematically investigate the effect of sol-gel precursor on corrosion performance of the blown soybean oil-based ceramer coatings. The work described here is an investigation of the corrosion protection afforded by a blown soybean oil ceramer coating system as a function of sol-gel precursor.…”

“…[20][21][22][23][24][25][26][27][28] The performance of the blown soybean oil ceramer coatings was dependent on the blowing time, and the type and amount of sol-gel precursor used. [21,22] A homogenous system with minimal phase separation between the inorganic and organic phases can be formed since the carboxylic acid groups derived from the oils couple with the sol-gel precursors.…”

Model Reaction Study on the Interaction between the Inorganic and Organic Phases in Drying Oil Based Ceramer Coatings

“…Pigments used in coating formulations are used for light absorbance and scattering and thus are generally on the order of 0.1−10 μm in size . As stated previously, the SAXS data indicated that the inorganic domains are much smaller and on the order of angstroms . As a result, the surface area of the pigments is much smaller than the inorganic domains in ceramer coatings, and therefore a direct comparison is difficult.…”