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A kind of preparation method of heat-insulating and sterilizing car roof fabric and airgel felt

An airgel blanket and car roof technology, applied in the field of auto parts, can solve problems such as unfavorable health of passengers, moisture accumulation in the car, and obvious temperature difference, etc., achieve good heat insulation effect, strengthen mechanical strength, The effect of accelerated prototyping

Active Publication Date: 2016-01-13
SHENZHEN GREENWHEEL ELECTRIC VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a frequently closed environment, the interior environment of the car is likely to lead to the accumulation and growth of bacteria and molds, which not only affects the aesthetics and service life of the interior materials, but also the proliferation of bacteria and molds is not conducive to the health of passengers. healthy
Especially in humid areas, the environment inside the car is often very humid, which provides good growth conditions for bacteria and mold. The mildew and rot of the roof fabric frequently occurs, which is very troublesome.
And even if the area is dry, the air conditioner of the car is often turned on in summer, resulting in a significant difference in temperature inside and outside the car, and the air-conditioning air causes moisture to accumulate in the car, especially at the air-conditioning outlet of the car roof, where there is often moisture accumulation, and it is easy to breed bacteria. mold

Method used

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  • A kind of preparation method of heat-insulating and sterilizing car roof fabric and airgel felt
  • A kind of preparation method of heat-insulating and sterilizing car roof fabric and airgel felt
  • A kind of preparation method of heat-insulating and sterilizing car roof fabric and airgel felt

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preparation example Construction

[0030] The preparation process of the hyperbranched polymer used in the present invention is as follows:

[0031]

[0032] in, It is hyperbranched polyester BoltornH30 (hereinafter referred to as H30), purchased from Sweden Perstorp company, its structural formula is shown in formula 1), DMF is N, N-dimethylformamide, Py is pyridine, and DMBA is dodecylmethylformamide benzylamine.

[0033]

[0034] Specifically, the hyperbranched polymer is preferably prepared according to the following method: the hyperbranched polyester BoltornH30 (H30) produced by Sweden's Perstorp company is dissolved in N, N-dimethylformamide (DMF), and pyridine (Py) is added as a binding agent. Acid agent, then stirred in an ice-water bath, slowly added 4-chlorobutyryl chloride dropwise, warmed up to room temperature after the dropwise addition, stirred and reacted for 24 hours, then dropped into water to precipitate, centrifuged to separate a brown sticky solid, the brown sticky solid Dissolve ...

Embodiment 1

[0052] Dissolve 10g of hyperbranched polyester H30 in 50mL of DMF, add 14.1mL of pyridine, stir in an ice-water bath, slowly drop in 20mL of 4-chlorobutyryl chloride, warm up to room temperature after the addition, stir for 24 hours, and pour the reaction mixture into Put it into 500mL deionized water, precipitate a brown viscous solid, centrifuge at 10000r / min, separate the solid and dissolve it in 50mL acetone, drop it into 500mL for precipitation, centrifuge at 10000r / min, repeat three times, and dry the obtained solid to obtain terminal chloride Modified hyperbranched polyester C1-H3018.5g, yield 81.4%.

[0053] Dissolve 10g of terminal chlorine-modified hyperbranched polyester C1-H30 in 50mL of DMF, stir and add 40mL of ethanol and 60mL of dodecylmethylbenzylamine, heat up to 80°C for three days, and cool the reaction system to room temperature , Pour the reaction mixture into 500mL acetone, precipitate a light brown solid, centrifuge at 10000r / min, redissolve the separat...

Embodiment 2

[0056] (1) Provide network-like cellulose nanofiber skeleton

[0057] Inoculate the pre-cultivated seed culture solution of Acetobacter xylinum into 10L Acetobacter xylinum fermentation medium with an inoculation amount of 13%, shake it fully, and culture it at a constant temperature of 30°C for 20 days to obtain a cellulose hydrogel . The Acetobacter xylinum fermentation broth contains 4% glucose, 0.8% protein, 0.5% yeast powder, 0.35% disodium hydrogen phosphate pentahydrate, 0.115% citric acid-hydrate, pH is 6.2, and is sterilized at high temperature for 20 minutes. The cellulose hydrogel fermented by microorganisms was placed in 5% NaOH aqueous solution at 90°C for 12 hours, then placed in deionized water at 80°C for 12 hours, during which the deionized water was replaced 4 times, and then the volume ratio was 2: 3. The mixed solution of tert-butanol and deionized water was subjected to solvent replacement at 60°C for 12 hours, and the mixed solution was replaced twice du...

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Abstract

The invention provides an insulating and antibacterial automobile ceiling fabric. Silicon dioxide aerogel is used as a functional packing layer, the very poor water absorption property of the silicon dioxide aerogel is beneficial to keeping the overall dryness of the automobile ceiling fabric, due to addition of hyperbranched polymer bactericide, not only is the formation of the aerogel felt accelerated, but also the mechanical strength of the aerogel felt is improved, the bacteria can be effectively killed and inhibited, the automobile ceiling fabric is prevented from mold or bacteria, and the body health of passengers is ensured. The automobile ceiling fabric provided by the invention integrates an insulating material aerogel felt layer and a stainless steel vacuum insulating layer, and a good insulating effect is achieved as the aerogel felt is of a porous structure of nano grade aperture and a heat conduction path is blocked by the vacuum insulating layer. The invention further provides a preparation method of the aerogel felt. Due to addition of the hyperbranched polymer bactericide as a functional auxiliary agent, the aerogel felt has properties of sterilization and bacteriostasis, is very poor in water absorption property and is beneficial to keeping the overall dryness of the automobile ceiling fabric.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a heat-insulating and sterilized car roof fabric and a method for preparing an airgel felt. Background technique [0002] With the improvement of people's living standards, cars have gradually changed from a luxury means of transportation to a common household equipment. In summer, when the car is exposed to direct sunlight, the temperature inside the car is likely to be too high, which not only makes driving uncomfortable, but also easily poses safety hazards. The car roof is the area with the largest direct sunlight on the car, and the use of the car roof fabric with heat insulation effect is beneficial to greatly reduce the ambient temperature inside the car. [0003] As a frequently closed environment, the interior environment of a car can easily lead to the accumulation and growth of bacteria and molds. healthy. Especially in humid areas, the environment inside the car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/79D06M15/507C08G63/91B32B23/04B32B23/10D06M101/06
Inventor 魏亮翁挺吴涵王奎
Owner SHENZHEN GREENWHEEL ELECTRIC VEHICLE CO LTD
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