Heat-insulating materials with high-temperature resistance through binding hollow glass microspheres with vinyl-functionalized polyborosiloxane

Zhang, Yulong; Zang, Chongguang; Jiao, Qingze; She-li, Yun-fei

doi:10.1007/s10853-020-05046-y

Cited by 19 publications

(11 citation statements)

References 38 publications

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“…These thermal insulation materials generally have a porous or hollow structure. In comparison, inorganic hollow particles have the advantage of high mechanical strength and therefore can be used under strict conditions. − However, due to the poor compatibility, inorganic hollow particles cannot be employed directly. They should be incorporated into polymers to form inorganic/polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Nanoscale Vesicles of Polyhedral Oligomeric Silsesquioxane-Based Star Block Copolymers for Thermal Insulation Applications

Pang

Liu

Cao

et al. 2022

ACS Appl. Nano Mater.

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Organic–inorganic hybrid vesicles of the polyhedral oligomeric silsesquioxane (POSS)-based star block copolymer of poly(N-isopropylacrylamide)-block-polystyrene [POSS-(PNIPAM-b-PS)8] were synthesized by polymerization-induced self-assembly via reversible addition–fragmentation chain transfer (RAFT) polymerization employing a POSS-based macromolecular chain transfer agent. The average diameter, the membrane thickness, and the cavity volume fraction of the POSS-(PNIPAM-b-PS)8 vesicles are 212 nm, 21 nm, and 52%, respectively. The POSS-(PNIPAM-b-PS)8 vesicles exhibit good thermal stability and have 12% higher Young’s modulus than the vesicles of linear block copolymer counterparts. Due to the high mechanical strength, the POSS-(PNIPAM-b-PS)8 vesicles can keep structural integrity in the dried state. The coating of the POSS-(PNIPAM-b-PS)8 vesicles is prepared by casting the dispersion of the star block copolymer vesicles at room temperature, and then, its application as a thermal insulation coating is investigated. It is found that the POSS-(PNIPAM-b-PS)8 vesicles can be used as qualified thermal insulation materials with the thermal conductivity as low as 0.131 W/m·K.

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Section: Introductionmentioning

confidence: 99%

Hybrid Nanoscale Vesicles of Polyhedral Oligomeric Silsesquioxane-Based Star Block Copolymers for Thermal Insulation Applications

Pang

Liu

Cao

et al. 2022

ACS Appl. Nano Mater.

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“…In recent years, boron- and silicon-containing polymers, namely, polyborosiloxanes (PBSs) have been extensively studied due to their heat resistant, − flame retardant, − ceramic forming, , and self-healing − properties. The latter is due to the nature of the −B–O–Si– bond in the network structure, which splits and combines reversibly due to moisture susceptibility.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Core–Shell Polyborosiloxanes as a Heat-Resistant Platform

Gunes

Karagöz

2022

ACS Omega

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Herein, new polyborosiloxanes (PBSs) were prepared using a straightforward synthetic approach to obtain a core–shell structure as a material with various features such as better adhesion ability to the applied surface and enhanced thermal properties. In this concept, in situ core–shell formation was allowed by sequential addition of ingredients with fixed conversions. First, pre-condensed polysiloxane was synthesized, with a 60% conversion, as a core by the reaction of phenyltriethoxysilane in the presence of water in an acidic condition. Subsequent addition of boric acid into the pre-condensate and a further condensation reaction resulted in the formation of the shell layer through the introduction of the −Si–O–B– bonds to the network of the PBS. The resulting resin was used as a binder for heat-resistant paint in combination with an aluminum pigment, and the paint applied on a metal plate was found to be resistant up to 600 °C in terms of adhesion strength. It was also demonstrated that the incorporation of boron in the core–shell structure showed better adhesion strength than the one-pot preparation of PBS. Using this method, not only the heat resistance requirement of the industrial coating was achieved but also the flame-retardant ability was introduced.

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“…In recent years, the research on filled foaming materials has never stopped. Like zhang [1] et al prepared thermal insulation materials with a density of about 0.30 g/cm 3 , a thermal conductivity of 0.045 W/m• K, and a maximum compressive strength of 10.32 MPa using hollow glass microspheres as the functional phase of thermal insulation and vinyl polyborosiloxane as the matrix. But when preparing thermal insulation materials by filling polymer matrix with hollow structured microspheres, it is necessary to continuously increase the content of hollow structured microspheres in the matrix to achieve low thermal conductivity of the composite material, which will lead to increasing viscosity of the composite system and eventually loss of processability.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Mechanical Properties of Thermal Insulation Silicone Rubber Composites

Pan

Zang

Chen

2022

J. Phys.: Conf. Ser.

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In this paper, three different functional phases of thermal insulation, hollow ceramic microspheres (HCM), hollow silica microspheres (HSM) and hydroxy silicone oil blowing agent (OH-3#)were selected, and a flexible and efficient thermal insulation composite with low thermal conductivity and high thermal structural strength was designed and prepared using the synergistic effect between the three. The results show that the thermal stability and mechanical performance of composites were significantly enforced.

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Heat-insulating materials with high-temperature resistance through binding hollow glass microspheres with vinyl-functionalized polyborosiloxane

Cited by 19 publications

References 38 publications

Hybrid Nanoscale Vesicles of Polyhedral Oligomeric Silsesquioxane-Based Star Block Copolymers for Thermal Insulation Applications

Hybrid Nanoscale Vesicles of Polyhedral Oligomeric Silsesquioxane-Based Star Block Copolymers for Thermal Insulation Applications

Synthesis of Core–Shell Polyborosiloxanes as a Heat-Resistant Platform

Preparation and Mechanical Properties of Thermal Insulation Silicone Rubber Composites

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