TREATMENT METHOD FOR THERMAL STORAGE GOOSE DOWN AND ITS APPLICATION IN PREPARING AVIATION SUIT

Abstract

The disclosure provides a treatment method for thermal storage goose down and its disclosure in preparing aviation suit, comprising the following steps: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials, mixing potassium thiocyanate, octadecyl isothiocyanate and water and stirring until uniform, mixing nano titanium carbide powder, vinyl modified siloxane, dispersant and water and stirring until uniform, using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the goose down obtained after the secondary modification is rinsed and vacuum dried to obtain the finished thermal storage goose down. The disclosure performs two modification treatments on goose down, only uses phase change materials to give the goose down good light-to-heat conversion performance, improves the fluffiness of the goose down by enhancing the breaking strength and resilience of the goose down.

Claims

1. A treatment method for thermal storage goose down, comprising the following steps: S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; S2, preparing a primary modified solution: mixing potassium thiocyanate, octadecyl isothiocyanate and water and stirring until uniform; S3, preparing a secondary modified solution, mixing nano titanium carbide powder, vinyl modified siloxane, dispersant and water and stirring until uniform; S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence; S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried to obtain the finished thermal storage goose down.

2. The treatment method for thermal storage goose down according to claim 1, wherein in the step S2, the raw material composition of the primary modified solution includes 5-10 parts of potassium thiocyanate, 5-10 parts of octadecyl isothiocyanate and 20-30 parts of water, by weight.

3. The treatment method for thermal storage goose down according to claim 1, wherein in the step S3, the raw material composition of the secondary modified solution includes 20-30 parts of nano titanium carbide powder, 10-15 parts of vinyl modified siloxane, 3-8 parts of dispersant and 30-50 parts of water, by weight.

4. The treatment method for thermal storage goose down according to claim 1, wherein in the step S4, a constant temperature is maintained in the range of 30 C.-45 C. and continuous stirring is performed during the impregnation process, a forward/reverse reciprocating stirring method is adopted, and a rotation speed is 90-150 rpm.

5. The treatment method for thermal storage goose down according to claim 1, wherein in the step S4, the vacuum drying temperature is 35-55 C.

6. The thermal storage goose down prepared by the treatment method for thermal storage goose down according to claim 1.

7. An aviation suit, using the thermal storage goose down according to claim 6, comprising a trunk and limb suit, a helmet, gloves, a pressure regulating system, a ventilation and supply system, and a communication system, wherein the trunk and limb suit comprises a comfort layer, an airtight layer, a main airtight layer, a restricting layer, a thermal insulation layer, and a protective layer from the inside to the outside, wherein the thermal insulation layer comprises several layers of polyester film, a double-layer partition net is provided between adjacent polyester films, and the double-layer partition net is filled with thermal storage goose down.

8. The aviation suit according to claim 7, wherein the thermal insulation layer is prepared by injecting thermal storage goose down into a spherical filling capsule, then filling a plurality of filling capsules between double-layer partition nets, and then stacking a plurality of filled double-layer partition nets one by one, and arranging a layer of polyester film between adjacent partition nets, and finally covering the two outermost partition nets with two pieces of polyester film and sealing the edges of the two pieces of polyester film together.

9. The aviation suit according to claim 8 wherein a pouch of the filling capsule is made of breathable fabric or film, and the partition net is made of elastic net and the mesh size is smaller than the outer diameter of the filling capsule.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIGURE is a schematic diagram of the thermal insulation layer structure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present disclosure is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present disclosure and cannot be understood as limiting the scope of protection of the present disclosure. Skilled in the art can make some non-essential improvements and adjustments to the present disclosure based on the above disclosure content.

1. Materials

[0025] Unless otherwise specified, the methods used in the present disclosure are conventional methods known to those skilled in the art, and the reagents and other materials used are commercially available products unless otherwise specified.

[0026] The dispersant in the secondary modified solution is polyethylene glycol.

2. Methods

[0027] 1. The influence of the components of the primary modified solution on the performance of goose down.

1.1. Preparation of Samples

Example 1

[0028] A treatment method for thermal storage goose down, comprising the following steps: [0029] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0030] S2. preparing a primary modified solution: mixing 5 parts of potassium thiocyanate (KSCN), 5 parts of octadecyl isothiocyanate and 20 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0031] S3, preparing a secondary modified solution, mixing 25 parts of nano titanium carbide powder, 13 parts of vinyl modified siloxane, 6 parts of dispersant and 40 parts of water and stirring until uniform, to obtain a secondary modified solution; [0032] S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0033] S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Example 2

[0034] A treatment method for thermal storage goose down, comprising the following steps: [0035] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0036] S2. preparing a primary modified solution: mixing 10 parts of potassium thiocyanate, 10 parts of octadecyl isothiocyanate and 30 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0037] S3, preparing a secondary modified solution, mixing 25 parts of nano titanium carbide powder, 13 parts of vinyl modified siloxane, 6 parts of dispersant and 40 parts of water and stirring until uniform, to obtain a secondary modified solution; [0038] S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0039] S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Example 3

[0040] A treatment method for thermal storage goose down, comprising the following steps: [0041] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0042] S2. preparing a primary modified solution: mixing 7 parts of potassium thiocyanate, 8 parts of octadecyl isothiocyanate and 25 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0043] S3, preparing a secondary modified solution, mixing 25 parts of nano titanium carbide powder, 13 parts of vinyl modified siloxane, 6 parts of dispersant and 40 parts of water and stirring until uniform, to obtain a secondary modified solution; [0044] S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0045] S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Blank Comparative Example A

[0046] A treatment method for thermal storage goose down, comprising the following steps: [0047] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0048] S2, preparing a secondary modified solution, mixing 25 parts of nano titanium carbide powder, 13 parts of vinyl modified siloxane, 6 parts of dispersant and 40 parts of water and stirring until uniform, to obtain a secondary modified solution; [0049] S4, goose down modification treatment: using the secondary modified solution to perform padding treatment on the goose down raw material, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0050] S4, post-treatment: the goose down obtained after the modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Comparative Example 1 and Comparative Example 2

[0051] On the basis of example 3, the components and proportions of the primary modified solution were adjusted to prepare thermal storage goose down.

[0052] The components and proportions of the primary modified solution in examples 1-3, comparative example 1 and comparative example 2 are shown in the following table:

TABLE-US-00001 Potassium Octadecyl Group thiocyanate isothiocyanate Water Example 1 5 5 20 Example 2 10 10 30 Example 3 7 8 25 Comparative 15 25 example 1 Comparative 15 25 example 2 Note: means no addition

Performance Testing

[0053] The performance of the thermal storage goose down prepared in examples 1-3, blank comparative example, comparative example 1 and comparative example 2 was tested using the following test method:

[0054] {circle around (1)} based on the down fluffiness detection method in GBT10288-2016 Down and Feather Test Method, the thermal storage goose down prepared in examples 1-3, blank comparative example, comparative example 1 and comparative example 2 was sampled in equal amounts, with a sampling amount of 40 g. The volume occupied by each sample under a specified pressure was detected in turn by a fluffiness instrument. After the first detection, each sample was subjected to the same water washing treatment in turn, and the sample was continuously rubbed during the water washing process. After the water washing treatment, the sample was dried, and then the sample was subjected to a secondary fluffiness test. The two fluffiness tests before and after the water washing treatment were repeated multiple times, and the average value of the realized data was taken as the test result;

[0055] {circle around (2)} the thermal storage goose down prepared in examples 1-3, blank comparative example, comparative example 1 and comparative example 2 were respectively used to prepare thermal insulation suit as samples. Under the simulated environmental conditions of the artificial climate chamber, a thermal manikin was used to test the thermal insulation performance of the goose down. The average thermal resistance after repeated tests was taken as the test result. The test conditions and the conditions of the artificial climate chamber were referred to the provisions of ASTM F2732. The specific preparation method of the thermal insulation suit was as follows: the thermal storage goose down was injected into a spherical filling capsule, and then several filling capsules were filled between the double-layer partition nets, and then the multiple filled double-layer partition nets were stacked one by one, and a layer of polyester film was arranged between adjacent partition nets. Finally, two outermost partition nets were covered with two polyester films and the edges of the two polyester films were sealed and bonded. The thermal insulation composite fabric was obtained through the above operation. According to the provisions of GB/T1335, the above thermal insulation composite fabric was used to prepare thermal insulation suit samples suitable for thermal manikin to wear, and the goose down filling amount in each thermal insulation suit sample was equal;

[0056] {circle around (3)} under the simulated environmental conditions of an artificial climate chamber, equal amounts of samples were obtained from the thermal storage goose down prepared in examples 1-3, blank control example, control example 1, and control example 2, and each sample was bagged separately in a uniform packaging bag to obtain the sample. The size of the packaging bag was 1515 cm. The samples were illuminated for 10 minutes in sequence using a xenon arc lamp. The lighting conditions were kept consistent. The sample temperatures were detected at the moment the lighting treatment was completed and 1 minute after the completion of the treatment. After repeated tests, the average value was taken as the test result.

[0057] The test results are shown in the following table:

TABLE-US-00002 Temperature after lighting ( C.) Thermal Turn off Fluffiness (cm) resistance After 10 the lights Before After 30 average minutes of 1 minute Group washing washes (clo) lighting later Example 1 26.5 24.9 4.61 3.0 1.7 Example 2 27.3 26.1 4.63 3.2 1.8 Example 3 29.2 27.7 4.77 3.5 2.4 Blank 17.8 10.3 2.86 2.9 1.5 comparative example A Comparative 22.1 16.4 3.54 2.2 1.3 example 1 Comparative 21.6 15.7 3.82 2.4 1.6 example 2

[0058] According to the data in the above table: [0059] (1) In examples 1-3, due to the different ratios of potassium thiocyanate and octadecyl isothiocyanate in the primary modified solution, the prepared goose down has differences in fluffiness, average thermal resistance, and temperature values before and after lighting. Among them, the data of the goose down in example 3 is the best. Therefore, the ratio of the primary modified solution in example 3 is selected as the best ratio; [0060] (2) In blank comparative example A, the step of modifying the goose down with the primary modified solution was removed when preparing the thermal storage goose down. In comparative examples 1 and 2, potassium thiocyanate and octadecyl isothiocyanate in the primary modified solution were removed respectively. By comparing the data of example 3, blank comparative example A, comparative example 1 and comparative example 2, it can be seen that the modification treatment of goose down with potassium thiocyanate and octadecyl isothiocyanate can improve the fluffiness of goose down, thereby indirectly improving the thermal insulation and thermal storage performance of goose down, and compared with the use of a single component, the improvement effect of the goose down performance achieved by the mixed use of the two components is more significant.

[0061] 2. The influence of the components of the secondary modified solution on the performance of goose down.

2.1. Preparation of Samples

Example 4

[0062] A treatment method for thermal storage goose down, comprising the following steps: [0063] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0064] S2. preparing a primary modified solution: mixing 7 parts of potassium thiocyanate, 8 parts of octadecyl isothiocyanate and 25 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0065] S3, preparing a secondary modified solution, mixing 20 parts of nano titanium carbide powder, 10 parts of vinyl modified siloxane, 3 parts of dispersant and 15 parts of water and stirring until uniform, to obtain a secondary modified solution; [0066] S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0067] S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Example 5

[0068] A treatment method for thermal storage goose down, comprising the following steps: [0069] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0070] S2. preparing a primary modified solution: mixing 7 parts of potassium thiocyanate, 8 parts of octadecyl isothiocyanate and 25 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0071] S3, preparing a secondary modified solution, mixing 30 parts of nano titanium carbide powder, 15 parts of vinyl modified siloxane, 8 parts of dispersant and 25 parts of water and stirring until uniform, to obtain a secondary modified solution; [0072] S4, goose down modification treatment: using the primary modified solution and the secondary modified solution to perform padding treatment on the goose down raw material in sequence, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0073] S4, post-treatment: the goose down obtained after the secondary modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Blank Comparative Example B

[0074] A treatment method for thermal storage goose down, comprising the following steps: [0075] S1, pre-treatment of goose down: screening, degreasing, washing and squeezing the goose down in sequence to obtain goose down raw materials; [0076] S2. preparing a primary modified solution: mixing 7 parts of potassium thiocyanate, 8 parts of octadecyl isothiocyanate and 25 parts of water by weight and stirring until uniform, to obtain a primary modified solution; [0077] S3, goose down modification treatment: using the primary modified solution to perform padding treatment on the goose down raw material, the impregnation temperature is kept constant at 40 C., and the impregnation process is continuously stirred by a forward/reverse reciprocating stirring method, and the rotation speed is 120 rpm; [0078] S4, post-treatment: the goose down obtained after the modification is rinsed and vacuum dried at a temperature of 45 C. to obtain finished thermal storage goose down.

Comparative Example 3

[0079] On the basis of example 3, the components and proportions of the secondary modified solution were adjusted to prepare thermal storage goose down.

[0080] The components and proportions of the secondary modified solution in example 3, example 4, example 5 and comparative example 3 are shown in the following table:

TABLE-US-00003 Nano titanium Vinyl carbide modified Group powder siloxane Dispersant Water Example 3 25 13 6 40 Example 4 20 10 3 30 Example 5 30 15 8 50 Comparative 38 6 40 example 3 Note: means no addition

2.2 Performance Testing

[0081] The performance of the thermal storage goose down prepared in example 4, example 5, blank comparative example B and comparative example 3 was tested by using the detection methods {circle around (1)}, {circle around (2)} and {circle around (3)} in 1.2. The test results are shown in the following table:

TABLE-US-00004 Temperature after lighting ( C.) Thermal Turn off Fluffiness (cm) resistance After 10 the lights Before After 50 average minutes of 1 minute Group washing washes (clo) lighting later Example 4 29.2 27.6 4.37 2.0 1.1 Example 5 29.4 27.6 4.45 1.9 1.0 Blank 27.8 24.9 2.18 0.9 0.4 comparative example B Comparative 28.3 26.5 3.42 1.2 0.6 example 3

[0082] According to the data in the above table: [0083] (1) In examples 3-5, due to the different ratios of nano titanium carbide powder and vinyl modified siloxane in the secondary modified solution, the prepared goose down has differences in fluffiness, average thermal resistance, and temperature values before and after lighting, wherein the data of the goose down in example 3 is the best. Therefore, the ratio of the secondary modified solution in example 3 is selected as the best ratio; [0084] (2) In the blank comparative example B, the step of modifying the goose down with the secondary modified solution was removed when preparing the thermal storage goose down. In comparative example 3, vinyl modified siloxane in the secondary modified solution was removed. By comparing the data of the blank comparative example B and examples 3-5, it can be seen that the modification of the goose down with the nano titanium carbide powder can effectively enhance the photo thermal conversion performance of the goose down, thereby improving the thermal storage performance of the goose down and indirectly improving the thermal insulation performance of the goose down. By comparing the data of the examples 3-4 and the comparative example 3, it can be seen that the vinyl modified siloxane can enhance the improvement effect of the nano titanium carbide powder on the performance of the goose down, thereby further improving the thermal storage and warmth retention performance of the goose down.

[0085] The above-mentioned examples only express several embodiments of the present disclosure, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the patent scope of the present disclosure. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, which all fall within the protection scope of the present disclosure.