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Layered elastomer capable of automatically controlling environment humidity

A kind of environmental humidity and elastomer technology, applied in the direction of hollow filament manufacturing, single-component copolyester artificial filament, conjugated synthetic polymer artificial filament, etc., can solve the lack of hygroscopicity and moisture drainage of layered elastomers , unable to meet the special functional requirements of the product, etc., to improve the quality of the sleeping environment, ensure the service life, and avoid the effect of being too dry

Pending Publication Date: 2022-07-08
WUXI KEYI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The applicant lacks research on the hygroscopicity and dehumidification of layered elastomers used in electronic products such as seat cushions, mattresses, and sofa cushions in the above-mentioned prior art, and cannot satisfy more consumers' growing demand for products. The shortcomings of special functional requirements provide a layered elastomer with self-control of environmental humidity. The layered elastomer can absorb water when the humidity is high, and discharge water when the humidity is low, so as to realize automatic adjustment in various scenarios. Ambient air humidity has the beneficial effect of improving sleep quality and sitting feeling

Method used

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  • Layered elastomer capable of automatically controlling environment humidity
  • Layered elastomer capable of automatically controlling environment humidity
  • Layered elastomer capable of automatically controlling environment humidity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The polyester elastomer A1 raw material is fed into the extruder, heated to a molten state in the extruder, and transported to the spinneret by a metering pump. The contact parts between the bodies are welded to each other, and the pulling rate is 0.6g / min. Infrared insulation is used between the spinneret and the lower water tank, and the woven continuous line body fibers are compressed in warm water at 25°C to flatten on both sides. Finally, a three-dimensional layered elastic body is obtained by molding, and the network structure density of the elastic body is 64.8kg / m measured by the above method. 3 , 40% indentation hardness is 188N, hollow rate is 35%, the hardness loss rate after repeated compression of fatigue resistance is 24.3%, the water absorption rate after 48h in 36℃ / 80%RH environment is 4.4%, 23℃ / 50%RH The water absorption rate after 12h in the environment is 1.3%, the water absorption rate after 48h is 0.7%, the 12h water absorption gradient is 3.1%, and...

Embodiment 2

[0060] The specific implementation method is the same as in Example 1, but the raw material used is changed to polyester elastomer A2, and the network structure density of the obtained layered elastomer is 65.2kg / m 3 , 40% indentation hardness is 167N, hollow rate is 33%, the hardness loss rate after repeated compression of fatigue resistance is 22.4%, the water absorption rate after 48h in 36℃ / 80%RH environment is 5.7%, 23℃ / 50%RH The water absorption rate after 12h in the environment is 1.7%, the water absorption rate after 48h is 0.9%, the 12h water absorption gradient is 4%, and the 48h water absorption gradient is 4.8%. The layered elastomer has environmental humidity self-control, and indentation hardness is durable. Good uniformity and comfort.

Embodiment 3

[0062] The specific implementation method is the same as in Example 1, but the raw material used is changed to polyester elastomer B2, and the network structure density of the obtained layered elastomer is 70.2 kg / m 3 , 40% indentation hardness is 171N, hollow rate is 36%, hardness loss rate after repeated compression of fatigue resistance is 27.4%, water absorption rate after 48h in 36℃ / 80%RH environment is 6.5%, 23℃ / 50%RH The water absorption rate after 12h in the environment is 2%, the water absorption rate after 48h is 1%, the 12h water absorption gradient is 4.5%, and the 48h water absorption gradient is 5.5%. The layered elastomer has environmental humidity self-control, and the indentation hardness is durable. Good uniformity and comfort.

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Abstract

The invention discloses a layered elastomer capable of automatically controlling environmental humidity, which is characterized in that a thermoplastic polyester elastomer is used as a raw material to extrude a long strip-shaped body, the strip-shaped body is curled and bonded to form a layered object with a certain thickness, and the strip-shaped body is of a hollow, solid or other structure. The molecular weight of the polyethylene glycol soft segment is 850-3150, the content of polyethylene glycol accounts for 32-49% of the weight of the polyethylene glycol soft segment, and the 12h water absorption gradient of the layered elastomer is 2.6-4.5%; the layered elastomer has a hardness loss rate of less than 30% when repeatedly compressed 80,000 times at a compression force of 750N. The layered elastomer product has good hygroscopicity, moisture removal performance and repeated compression durability, can automatically adjust ambient air humidity under various situations, has the beneficial effects of improving sleep quality, sitting feeling and the like when being used for manufacturing mattresses and cushion products, is not easy to age after being used for a long time, and is long in service life.

Description

technical field [0001] The invention relates to a layered elastic body with a certain thickness formed by crimping long fiber filaments. The long fiber filaments are made of thermoplastic polyester elastomer as raw material, and the elastic body is particularly suitable for making mattresses, seat cushions and other products. In particular, it is a layered elastomer with self-controlling ambient humidity. Background technique [0002] Existing layered elastomers are often produced by spinning. Specifically, the polyester elastomer in the molten state is extruded at a certain speed and temperature with a spinning plate, and then dropped into water for cooling after extrusion. It is a three-dimensional network structure obtained by bending into a ring, welding the contact parts to each other, flattening the two sides, and finally cutting it into the desired size. This layered elastomer can be used in many fields, such as being used as fabrics to make clothes, tents and shoes,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/011D04H3/05D04H3/16D01F6/84D01F8/14D01F1/08
CPCD04H3/011D04H3/05D04H3/16D01F6/84D01F8/14D01F1/08
Inventor 陈浩
Owner WUXI KEYI NEW MATERIAL CO LTD