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A kind of processing method of exothermic composition

A heat-generating composition and processing method technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of premature oxidation heat generation, poor control of the ratio, uneven heating temperature, etc., to prevent iron powder from overheating Effects of early oxidation and heating, ensuring the quality of raw materials, and reducing heat loss

Active Publication Date: 2021-06-25
TIANJIN FUQIN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned method is complex in process, and the ratio is not easy to control, resulting in uneven heating temperature
It is also possible to directly add superabsorbent resin to the heating composition to absorb part of the water. However, due to the fast water absorption rate of the superabsorbent resin, the iron powder will be oxidized prematurely before it is completely encapsulated and isolated from the air, which directly affects the heat generation. Product quality after composition encapsulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a processing method for the exothermic composition, comprising the following steps:

[0032] Step 1: First, add the ingredients of raw materials according to a certain ratio. The specific ingredients and ratios used in this example are: reduced iron powder: 5.90Kg; vermiculite: 1.04Kg; activated carbon: 0.50Kg; table salt: 0.36Kg; water: 3.5Kg (water is excess); polyvinyl alcohol resin: 0.11Kg.

[0033] Wherein, the polyvinyl alcohol resin selected in this embodiment is provided with a wrapping layer outside, the wrapping layer adopts a wax film, and the porosity of the wrapping layer is 45-50%, the moisture in the raw material can enter the interior along the gap of the wrapping layer, and the polyethylene The size of the alcohol resin is 30-100 mesh, which is similar to the size of other components in the raw material, which can better realize the mixing of the polyvinyl alcohol resin and the raw material.

[0034] Step 2: Pour the raw materi...

Embodiment 2

[0040] This embodiment provides a processing method for the exothermic composition, comprising the following steps:

[0041] Step 1: First, add the ingredients of raw materials according to a certain ratio. The specific ingredients and ratios used in this example are: reduced iron powder: 5.90Kg; vermiculite: 1.04Kg; activated carbon: 0.50Kg; table salt: 0.36Kg; water: 3.5Kg (water is excess); polyvinyl alcohol resin: 0.44Kg.

[0042]Wherein, the polyvinyl alcohol resin selected in this embodiment is provided with a wrapping layer outside, the wrapping layer adopts a wax film, and the porosity of the wrapping layer is 30-45%, the moisture in the raw material can enter the interior along the gap of the wrapping layer, and the polyethylene The size of the alcohol resin is 30-100 mesh, which is similar to the size of other components in the raw material, which can better realize the mixing of the polyvinyl alcohol resin and the raw material.

[0043] Step 2: Pour the raw materia...

Embodiment 3

[0049] This embodiment provides a processing method for the exothermic composition, comprising the following steps:

[0050] Step 1: First, add the ingredients of raw materials according to a certain ratio. The specific ingredients and ratios used in this example are: reduced iron powder: 5.90Kg; vermiculite: 1.04Kg; activated carbon: 0.50Kg; table salt: 0.36Kg; water: 3.5Kg (water is excess); polyvinyl alcohol resin: 0.77Kg.

[0051] Wherein, the polyvinyl alcohol resin selected in this embodiment is provided with a wrapping layer outside, the wrapping layer adopts a wax film, and the porosity of the wrapping layer is 20-30%, the moisture in the raw material can enter the interior along the gap of the wrapping layer, and the polyethylene The size of the alcohol resin is 30-100 mesh, which is similar to the size of other components in the raw material, which can better realize the mixing of the polyvinyl alcohol resin and the raw material.

[0052] Step 2: Pour the raw materi...

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Abstract

The embodiment of the present invention discloses a processing method of a heat-generating composition, which includes the steps of: adding a water-absorbing resin into the heat-generating composition, and the water-absorbing resin is wrapped with a wrapping layer; stirring and mixing the mixture of the heat-generating composition and the water-absorbing resin; The composition is filled into a bag and sealed, and the bag is sealed again in an outer bag with an air-insulating effect. The wrapping layer is a wax film, and the porosity of the wrapping layer is 0‑50%. A heating step is also included. When the porosity of the wrapping layer is 0%, heating must be carried out after the exothermic composition is encapsulated. This application is simple and efficient. During the processing of the heat-generating composition, due to a slight excess of water, the water-absorbing resin penetrates the gap of the coating layer to absorb water and expand, and the coating layer ruptures, and the excess water is absorbed, so that the moisture content of the heating composition reaches a balance, effectively preventing The premature oxidation and heat generation of the iron powder caused by the water-absorbing resin absorbing water too quickly greatly reduces the heat loss during the processing of the exothermic composition and ensures the quality of the raw material of the exothermic composition.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of processing heat-generating materials, and in particular to a method for processing heat-generating compositions. Background technique [0002] In the prior art, the steam eye mask adopts advanced self-heating temperature control technology, which allows the oxygen in the air and iron powder to undergo a chemical reaction inside the eye mask to form a heating body, release heat, and release the subtle and moist air that cannot be seen by the naked eye. steam. It is a product with a general name developed in response to the needs of the eye care market. It is named for its ability to spontaneously generate heat and generate steam. It can promote eye blood circulation, relieve eye fatigue, relax eye skin, help sleep, protect eyesight; replenish water, reduce water loss, dilute eye wrinkles, dark circles, eye bags, and delay eye aging; it is also suitable for other skin care product...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/18
CPCC09K5/18
Inventor 刘宇新吴妍
Owner TIANJIN FUQIN SCI & TECH
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