Polymer film material with hydrogen absorption function and preparation method thereof

Abstract

The invention discloses a polymer film material with a hydrogen absorption function. The polymer film material comprises the following raw materials: a water absorbent, a noble metal catalyst and a polymer matrix, the preparation method comprises the following steps: uniformly mixing the water absorbent, the polymer matrix and the noble metal catalyst, and preparing thermoplastic and thermosettinghydrogen absorption materials with different structures and application forms by physical and chemical forming methods. Complex chemical preparation is avoided, the preparation process is simple, thehydrogen absorption performance is high, and due to the fact that the hydrogen absorption film is a thin film, machining and cutting can be directly conducted.

Description

technical field

[0001] The invention relates to the field of functional polymer preparation, in particular to a method for preparing a polymer film material with hydrogen absorption function. Background technique

[0002] Polymer hydrogen absorbing materials have the characteristics of polymer processing and tailoring and hydrogen absorption of hydrogen absorbing materials, so they have important application value in the field of nuclear industry and nuclear materials for hydrogen elimination in complex application scenarios. Traditional organic hydrogen-absorbing materials based on p-diphenylethynylbenzene (DEB) have been widely used in the nuclear industry, but due to the characteristics of p-diphenylethynylbenzene powder, they need to be packaged when used. Additional mass and volume issues make it more limited when targeting complex and narrow application environments. A variety of hydrogen absorbing materials based on DEB hybrid systems and unsaturated polymers with di...

Examples

Embodiment 1

[0018] Weigh 20g of polydimethylsiloxane (3500cst) containing 5% vinyl in a 250mL plastic beaker, then add 0.2g of hydrogen-containing silicone oil, 8g of anhydrous calcium chloride powder (200 mesh), 2.0g of Pd@C Catalyst, after stirring evenly, add 0.05g of 2.0wt% Cassette catalyst, stir quickly and evenly, pour the mixture into a stainless steel plate, and cure at 60°C for 15h to obtain a white flexible film material.

[0019] The resulting flexible film (0.2g, 220 μm) is placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after different times are shown in Table 1:

[0020] Table 1

[0021] time 15min 30min 100min 240min Hydrogen concentration (%) 3.7 2.5 0.1 0

[0022] The obtained film (0.2g, 220 μm) is placed in the mixed gas (250mL 1% hydrogen, 5% oxygen, 94% nitrogen mixed gas) for different times, and the hydrogen concentration of the system chan...

Embodiment 2

[0026] Weigh 20g of polybutadiene (Mn=25000) into a 250mL plastic beaker, then add 2.5g of hydrogen-containing silicone oil, 8g of anhydrous molecular sieve powder (200 mesh), 2.0g of Pd@C catalyst, stir well and add 0.05g of 2wt % Cassette catalyst, the mixture was quickly stirred evenly and poured into a stainless steel plate, and cured at 80° C. for 15 hours to obtain a white flexible film material.

[0027] The resulting white flexible film (0.2g, 402 μm) is placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after different times are shown in Table 3:

[0028] table 3

[0029] time 15min 30min 100min 240min Hydrogen concentration (%) 4.2 3.0 0.8 0

[0030] The resulting flexible film (0.2g, 402 μm) was placed in a mixed gas (250mL 1% hydrogen, 5% oxygen, 94% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after differ...

Embodiment 3

[0034] Weigh 20g polybutadiene-polystyrene-polybutadiene triblock copolymer (styrene content 25wt%), add 30mL tetrahydrofuran to dissolve, add 8g anhydrous molecular sieve powder (200 mesh) after polymer dissolves completely and 3.0g of Pd@C catalyst, after stirring evenly, the mixture was poured into a stainless steel plate, and cured at 80°C for 15h to obtain a white flexible material. After evaporating the solvent at room temperature, continue drying at 80°C to obtain a flexible white film material.

[0035] The resulting white flexible film (0.2g, 580 μm) was placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen mixed gas) for different times, and the changes in the hydrogen concentration of the system were shown in Table 5:

[0036] table 5

[0037] time 15min 30min 100min 240min Hydrogen concentration (%) 6.9 4.8 2.1 0.7

[0038] The resulting flexible film (0.2g, 580 μm) was placed in a mixed gas (250mL 1% hydrogen, 5% ox...

technical field

[0001] The invention relates to the field of functional polymer preparation, in particular to a method for preparing a polymer film material with hydrogen absorption function. Background technique

[0002] Polymer hydrogen absorbing materials have the characteristics of polymer processing and tailoring and hydrogen absorption of hydrogen absorbing materials, so they have important application value in the field of nuclear industry and nuclear materials for hydrogen elimination in complex application scenarios. Traditional organic hydrogen-absorbing materials based on p-diphenylethynylbenzene (DEB) have been widely used in the nuclear industry, but due to the characteristics of p-diphenylethynylbenzene powder, they need to be packaged when used. Additional mass and volume issues make it more limited when targeting complex and narrow application environments. A variety of hydrogen absorbing materials based on DEB hybrid systems and unsaturated polymers with di...

Examples

Embodiment 1

[0018] Weigh 20g of polydimethylsiloxane (3500cst) containing 5% vinyl in a 250mL plastic beaker, then add 0.2g of hydrogen-containing silicone oil, 8g of anhydrous calcium chloride powder (200 mesh), 2.0g of Pd@C Catalyst, after stirring evenly, add 0.05g of 2.0wt% Cassette catalyst, stir quickly and evenly, pour the mixture into a stainless steel plate, and cure at 60°C for 15h to obtain a white flexible film material.

[0019] The resulting flexible film (0.2g, 220 μm) is placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after different times are shown in Table 1:

[0020] Table 1

[0021] time 15min 30min 100min 240min Hydrogen concentration (%) 3.7 2.5 0.1 0

[0022] The obtained film (0.2g, 220 μm) is placed in the mixed gas (250mL 1% hydrogen, 5% oxygen, 94% nitrogen mixed gas) for different times, and the hydrogen concentration of the system chan...

Embodiment 2

[0026] Weigh 20g of polybutadiene (Mn=25000) into a 250mL plastic beaker, then add 2.5g of hydrogen-containing silicone oil, 8g of anhydrous molecular sieve powder (200 mesh), 2.0g of Pd@C catalyst, stir well and add 0.05g of 2wt % Cassette catalyst, the mixture was quickly stirred evenly and poured into a stainless steel plate, and cured at 80° C. for 15 hours to obtain a white flexible film material.

[0027] The resulting white flexible film (0.2g, 402 μm) is placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after different times are shown in Table 3:

[0028] table 3

[0029] time 15min 30min 100min 240min Hydrogen concentration (%) 4.2 3.0 0.8 0

[0030] The resulting flexible film (0.2g, 402 μm) was placed in a mixed gas (250mL 1% hydrogen, 5% oxygen, 94% nitrogen gas mixture) and the changes in the hydrogen concentration of the system after differ...

Embodiment 3

[0034] Weigh 20g polybutadiene-polystyrene-polybutadiene triblock copolymer (styrene content 25wt%), add 30mL tetrahydrofuran to dissolve, add 8g anhydrous molecular sieve powder (200 mesh) after polymer dissolves completely and 3.0g of Pd@C catalyst, after stirring evenly, the mixture was poured into a stainless steel plate, and cured at 80°C for 15h to obtain a white flexible material. After evaporating the solvent at room temperature, continue drying at 80°C to obtain a flexible white film material.

[0035] The resulting white flexible film (0.2g, 580 μm) was placed in a mixed gas (250mL 4.8% hydrogen, 10% oxygen, 85.2% nitrogen mixed gas) for different times, and the changes in the hydrogen concentration of the system were shown in Table 5:

[0036] table 5

[0037] time 15min 30min 100min 240min Hydrogen concentration (%) 6.9 4.8 2.1 0.7

[0038] The resulting flexible film (0.2g, 580 μm) was placed in a mixed gas (250mL 1% hydrogen, 5% ox...