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Wet nonwoven fabric for hydrocarbon trap of gasoline engine air filter, and manufacturing method thereof

A technology for air filters and gasoline engines, applied in fuel air filters, textiles and papermaking, etc., can solve the problems of not being able to apply hydrocarbon trap products, improve adsorption/desorption capacity, prevent release, and improve performance Effect

Inactive Publication Date: 2020-05-22
晟彰自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above techniques cannot be applied to hydrocarbon trap products

Method used

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  • Wet nonwoven fabric for hydrocarbon trap of gasoline engine air filter, and manufacturing method thereof
  • Wet nonwoven fabric for hydrocarbon trap of gasoline engine air filter, and manufacturing method thereof
  • Wet nonwoven fabric for hydrocarbon trap of gasoline engine air filter, and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1-6 and comparative preparation Embodiment 1-4

[0111] Using the configuration shown in Table 1 below, powdered activated carbon was prepared for the manufacture of a wet-laid nonwoven fabric for a hydrocarbon trap of an air filter for a gasoline engine.

experiment Embodiment 1

[0112] Experimental Example 1: Activated Carbon Performance Test of Powdered Activated Carbon

[0113] In order to perform the adsorption / desorption performance test on the powdered activated carbon prepared in each preparation example and comparative preparation example, it was baked at 110° C. for 3 hours before the test, and was heated at room temperature by using the standard jig used for the test. 500ml of activated carbon was filled under normal pressure (25°C±2°C, 1 atm) and 50±5%RH. Then, when loading 250cc / min N 2 After gas and 250 cc / min of butane gas, the above-mentioned activated carbon was subjected to a measurement until saturation, and then it was purged at 25.5 l / min to a minimum mass. The results of the above steps are shown in Table 1 below.

[0114] [Table 1]

[0115]

[0116] Referring to the activated carbon performance test (experimental example 1) of the above-mentioned powdery activated carbon, it can be seen that because the specific surface area...

Embodiment 1-4

[0125] The base materials used in these examples were as follows: 340 g / m 2 powdered activated carbon; 15g / m 2 pulp; 80g / m at 110°C 2 The melting point of fine fibers (10μm); 1.3g / m 2 waterproofing agent; 45g / m 2 Carbon binders (Hercopuls from Ashland Co. TM 125); and 20g / m 2nonwoven fabric support. Additionally, other additives were used in these examples. By mixing the above-mentioned base materials, the base materials are subjected to a suspension process S110 of preparing a suspension, and then a net-type product is formed through a net-forming process S120. Then, after passing through the water removal process S130, the net product is dried in a drying process S140. Here, among the additives, a carbon fixer or a dehydration enhancer was used in Examples 1-4, respectively, while containing a base material. The carbon fixer used here was SY CHEM SB-50N (manufactured by SY CHEM Co.), and the dehydration enhancer was SY CHEM C-100 (manufactured by SY CHEM Co.). Accor...

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Abstract

The invention relates to a wet nonwoven fabric for a hydrocarbon trap of a gasoline engine air filter, and a manufacturing method thereof, specifically to a wet nonwoven fabric for a hydrocarbon trapof an air filter or a gasoline engine. According to the web nonwoven fabric, powdered active carbon having specific physical properties, paper pulp, synthetic fibers having specific physical properties, and a carbon binder are used as base materials to prepare a net type nonwoven fabric; by pressing, the fabric forms a wet nonwoven fabric having a predetermined thickness; and when the fabric is processed to form a hydrocarbon trap and the hydrocarbon trap is installed and used for the air filter of a gasoline engine, the hydrocarbon trap can adsorb evaporated oil vapor such as hydrocarbons contained in evaporated has generated from fuel in a combustion chamber of an engine or fuel in a fuel tank, and then the hydrocarbons are desorbed when the engine is driven, so that the outflow of the hydrocarbons as a main cause of external air pollution is prevented, and harm of hydrocarbon gas to passengers in a vehicle can be minimized.

Description

technical field [0001] The present invention relates to a wet-laid nonwoven fabric for a hydrocarbon trap of an air filter for a gasoline engine and a method for manufacturing the same; in particular, to a fabric having remarkably improved adsorption / desorption capabilities and excellent physical properties A wet-laid nonwoven fabric for hydrocarbon traps, wherein the wet-laid nonwoven fabric is combined by selecting powdered activated carbon with a mesostructure within a predetermined range, synthetic fibers with specific physical properties, and a minimum amount of carbon agent formation, thereby achieving excellent physical properties and significantly improved adsorption / desorption capacity, such as when hydrocarbon traps for gasoline engine air filters are manufactured using this wet-laid nonwoven fabric and then used, in the presence of volatile oil vapor During adsorption and desorption of (eg hydrocarbon gas), prevention of release of powdered activated carbon, etc., a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/00F02M35/02
CPCD21J3/00F02M35/02
Inventor 朱光鎭李在敏李永燮朴慧浚
Owner 晟彰自动化技术有限公司
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