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Filter paper coating material for auto filters and preparation method thereof

A technology for coating materials and filters, applied in paper coatings, coatings, papermaking, etc., to achieve the effects of improved dynamic performance, obvious comprehensive effects, and simple process

Active Publication Date: 2014-05-07
北京联飞翔科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems existing in the existing filter paper, the present invention aims to provide a new type of filter paper coating material for automotive environmental protection filters and its preparation by using the composite technology of high aspect ratio natural mineral material nanofibers and in-use automotive filter paper papermaking fibers method

Method used

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  • Filter paper coating material for auto filters and preparation method thereof
  • Filter paper coating material for auto filters and preparation method thereof
  • Filter paper coating material for auto filters and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of far-infrared ceramic powder:

[0038] 0.9kg of magnesium tourmaline ultrafine powder with a median diameter of 0.5μm, and La with a median diameter of 0.21μm 2 o 3 0.1kg, Fe 2 o 3 0.2kg, MnO 2 0.3kg, Co 2 o 3 0.1kg, CuO0.2kg.

[0039] 2. Preparation of filter paper coating material:

[0040] 1) Add the silane coupling agent and diluent to the far-infrared ceramic powder and stir for 20 minutes, let it stand for 8 minutes, and dry at 100°C; improve the surface properties of the ceramic powder, make it better integrated with the pulp, and increase the powder in the paper of firmness.

[0041] 2) Add far-infrared ceramic powder, sepiolite nanofiber, synthetic fiber, sizing agent, and styrene-acrylic emulsion after surface pretreatment in step 1) to the beaten wood pulp at the same time, and use mechanical stirring to make it evenly mixed. Then add water to adjust the concentration to 3.2%, and the prepared slurry is the coating material.

[0042...

Embodiment 2

[0052] 1. Preparation of far-infrared ceramic powder:

[0053] 1.9kg of ferrite ultrafine powder with a median diameter of 1.4μm, and CeO with a median diameter of 0.08μm 2 0.2kg, Fe 2 o 3 0.3kg, MnO 2 0.3kg, Co 2 o 3 0.8kg, CuO0.2kg.

[0054] 2. Preparation of filter paper coating material:

[0055] The coating material was prepared according to the method of Example 1. Among them, high-aspect-ratio sepiolite nanofibers were prepared by high-speed airflow technology, with a diameter of 81 nm and a length of 0.11 μm.

[0056] Cut the synthetic fiber with a cutting machine, the length is less than 2cm.

[0057] Among them, the distribution ratio of each group is shown in Table 3.

[0058] Table 3 Proportion of Example 2 (kg)

[0059]

[0060] The prepared coating material is coated on the filter paper of a diesel filter with a mass-area ratio of 50 g / m, and dried to make an environment-friendly filter paper for a diesel filter. The results of paper performance tes...

Embodiment 3

[0065] 1. Preparation of far-infrared ceramic powder:

[0066] 3.1kg of lithium tourmaline ultrafine powder with a median diameter of 1.1μm, and Ce with a median diameter of 1.7μm 2 o 3 0.2kg, Fe 2 o 3 0.8kg, MnO 2 0.3kg, Co 2 o 3 0.2kg, CuO1.2kg.

[0067] 2. Preparation of filter paper coating material:

[0068] The coating material was prepared according to the method of Example 1. Among them, high-aspect-ratio sepiolite nanofibers were prepared by high-speed airflow technology, with a diameter of 92 nm and a length of 0.22 μm.

[0069] The synthetic fiber is cut with a cutting machine, and the length is less than 1.5cm.

[0070] Among them, the distribution ratio of each group is shown in Table 5.

[0071] Proportion (kg) of Table 5 Example 3

[0072]

[0073] The prepared coating material is coated on the gasoline filter paper with a mass area ratio of 50 g / m, and dried to make an environment-friendly gasoline filter paper. The results of paper performance t...

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Abstract

The invention relates to a filter paper coating material for auto filters, and the filter paper coating material for auto filters is prepared from the following components in parts by weight: 1-6 parts of far infrared ceramic powder, 2-20 parts of sepiolite nano fiber, 4-10 parts of synthetic fiber, 0.8-2 parts of silane coupling agent, 0.8-2 parts of diluent, 9-20 parts of sizing agent, 20-40 parts of styrene-acrylic emulsion and 60-96 parts of wood pulp. According to the coating material provided by the invention, the manufactured air, fuel and oil filters have remarkable comprehensive functions, the motor vehicle exhaust emission is decreased by 13-40%, the dynamic performance is improved by 5-15%, the fuel can be saved by 2-7% and the emission standard is up to the European standard IV.

Description

technical field [0001] The invention relates to a filter paper coating material for an automobile filter, in particular to a filter material coating material with an environmental protection function and a manufacturing method thereof, belonging to the technical field of automobile environmental protection. Background technique [0002] The rapid development of the automobile industry has brought prosperity and convenience to mankind. However, with the sharp increase in the number of automobiles, the environmental problems caused by automobile emissions have emerged. Nitrogen oxides, volatile organic compounds, and inhalable particulate matter in emissions account for 66%, 90%, and 26% of all pollution sources in central urban areas, respectively. Automobile filters have the function of filtering fuel, air and engine oil. The filter element is its main filtering part and undertakes the filtering work. The research on filter materials is directly related to the filtering effe...

Claims

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Application Information

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IPC IPC(8): D21H19/40D21H19/36D21H21/16D21H21/14
Inventor 郑淑芬金伟
Owner 北京联飞翔科技股份有限公司
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