Disposable self-heating health care patch having low-temperature solid-solid phase transition temperature control characteristic
A phase-change temperature control and self-heating technology, which can be used in contraceptives, heating devices for treatment and cooling devices for treatment and other directions, and can solve problems such as scalding, inaccurate temperature control technology, and low temperature burns.
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[0041] Example 1.
[0042] A disposable self-heating health care patch with low-temperature solid-solid phase change and temperature control characteristics. A low-temperature solid-solid phase change material is added to the heating material. The heating material is made of iron powder, activated carbon, salt, vermiculite and high water absorption Resin composition.
[0043] In parts by weight, the specific ratio is,
[0044] Iron powder: 100 parts;
[0045] Activated carbon: 5-15 parts;
[0046] Salt: 50-70 parts;
[0047] Vermiculite: 40-70 parts;
[0048] Super absorbent resin: 1-8 parts;
[0049] Low temperature solid-solid phase change material: 5-25 parts.
[0050] Among them, the low-temperature solid-solid phase change material refers to the solid-solid phase change material whose phase transition temperature is lower than 65°C, which is composed of Mg(NO 3 ) 2 ·6H 2 O and Al (NO) 3 ·9H 2 O composition, the Mg(NO 3 ) 2 ·6H 2 O accounts for 40%-60% of the total weight of the low-te...
Example Embodiment
[0057] Example 2.
[0058] A disposable self-heating health care patch with low temperature solid-solid phase change and temperature control characteristics. Other technical features are the same as Example 1, except that the low-temperature solid-solid phase change material is composed of 53% Mg(NO 3 ) 2 ·6H 2 O and 47% Al(NO) 3 ·9H 2 O composition. Experiments have proved that 53% of Mg(NO 3 ) 2 ·6H 2 O and 47% Al(NO) 3 ·9H 2 The phase transition temperature of the material after O mixing is 61°C.
[0059] The invention utilizes the phase change heat storage characteristics of low-temperature solid-solid phase change materials and is applied to disposable self-heating health-care stickers, so that the temperature of the disposable self-heating health-care stickers is controllable, the heating temperature curve is stable, and the heating temperature is uniform and stable. The user feels comfortable, can effectively prevent low-temperature scalds and scalds caused by improper temp...
Example Embodiment
[0060] Example 3.
[0061] A disposable self-heating health care patch with low temperature solid-solid phase change temperature control characteristics. Other technical features are the same as those in Example 1, except that the low-temperature solid-solid phase change material is made of Mg(NO 3 ) 2 ·6H 2 O and MgCl 2 ·6H 2 O composition, the Mg(NO 3 ) 2 ·6H 2 O accounts for 50%-60% of the total weight of the low-temperature solid-solid phase change material, and the MgCl 2 ·6H 2 O accounts for 40%-50% of the total weight of the low-temperature solid-solid phase change material.
[0062] Experiments have proved that Mg(NO 3 ) 2 ·6H 2 O and MgCl 2 ·6H 2 The phase transition temperature of the material after O mixing is about 58-59°C. The invention utilizes the phase change heat storage characteristics of low-temperature solid-solid phase change materials and is applied to disposable self-heating health-care stickers, so that the temperature of the disposable self-heating health-c...
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