Automobile engine filter paper immersion resin emusion and preparation method thereof

A technology of automobile engine, impregnating resin, applied in filter paper, separation method, chemical instrument and method, etc., can solve the problem of reducing PVAc emulsion adhesion, water resistance, weather resistance and heat resistance, processing and use of automobile filter element Difficulty, increase the discontinuity and inhomogeneity of the adhesive film, etc., to achieve the effect of enhancing physical strength, overcoming complex operation process and environmental problems, and simple dipping process

Inactive Publication Date: 2005-08-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wherein polyvinyl acetate emulsion (PVAc is called for short white glue) is cheap, easy to use, impregnates and processes automobile filter paper with PVAc emulsion, and production technology is mature, and safe and nontoxic, uses comparatively extensive (CN1388289A), but the automobile that processes through PVAc emulsion impregnation The disadvantages of filter paper products are: the stiffness of the paper is reduced in the environment of high temperature and high humidity, and the waterproof and moisture-proof performance is not good, which will bring difficulties to the processing and use of automotive filter elements in the future.
When forming a film, PVA has an isolation effect on each latex particle, which increases the discontinuity and inhomogeneity of the film. At the same time, PVA exists i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 2 g of emulsifier OP-10, 1.2 g of sodium lauryl sulfate, and 3.2 g of N-methylol acrylamide in 45 g of deionized water, and add 30 g of styrene, 12 g of methyl methacrylate, and butyl acrylate under stirring. 36g of hydroxyethyl acrylate, 3.5g of hydroxyethyl acrylate, stirred and pre-emulsified for 30 minutes below 40°C to make a monomer pre-emulsion, dissolved 0.5g of potassium persulfate in 10g of deionized water for later use, and prepared 0.5g of OP-10, ten Add 0.2 g of sodium dialkylsulfate and 45 g of deionized water into a 250 ml four-necked flask equipped with a stirring paddle, a reflux condenser, a thermometer, and a nitrogen device, heat up to 80° C. under stirring, and then add 3 g of initiator solution, 10g of the pre-emulsion initiates polymerization. After the emulsion turns blue, add the pre-emulsion and the initiator solution dropwise to the four-neck flask. The time for dropping is 2.5 hours. At 40°C, filter to obtain a bluish white copolymer...

Embodiment 2

[0027] Dissolve 2g of emulsifier OP-10, 1.8g of sodium dodecylsulfonate, 3.2g of N-methylolacrylamide in 45g of deionized water, add 35g of styrene, 10g of methyl methacrylate, 30g of butyl acrylate and 3g of acrylic acid were stirred and pre-emulsified for 30 minutes below 40°C to make a monomer pre-emulsion, and 0.5g of potassium persulfate was dissolved in 10g of deionized water for later use. 0.5g of OP-10, 12 Add 0.2 g of sodium alkyl sulfonate and 45 g of deionized water into a 250 ml four-necked flask equipped with a stirring blade, a reflux condenser, a thermometer, and a nitrogen device, heat up to 80° C. under stirring, and then keep the temperature constant, add 3 g of initiator solution, 10g of the pre-emulsion initiates polymerization, and after the emulsion turns blue, start to drop the pre-emulsion and the initiator solution into the four-neck flask for 2.5 hours. After the addition, raise the reaction temperature to 80°C, keep it warm for 2 hours, and then cool ...

Embodiment 3

[0029]Dissolve 2g of emulsifier OP-9, 1.8g of sodium lauryl sulfate, and 2g of N-methylolacrylamide in 45g of deionized water, and add 40g of styrene, 36g of lauryl methacrylate, and hydroxymethacrylate under stirring. Ethyl ester 4g, itaconic acid 3.6g, stirred and pre-emulsified at below 40°C for 30 minutes to make monomer pre-emulsion, take 0.5g of potassium persulfate dissolved in 10g of deionized water for later use, and OP-10 0.5g, ten Add 0.2 g of sodium dialkyl sulfate and 45 g of deionized water into a 250 ml four-neck flask equipped with a stirring paddle, a reflux condenser, a thermometer, and a nitrogen device, stir and heat up to 75° C., then keep the temperature constant, add 3 g of initiator solution, and pre- 10g of the emulsion initiates polymerization. After the emulsion turns blue, start to add the pre-emulsion and the initiator solution dropwise to the four-necked flask. The dropping time is 2.5 hours. After the dropping is completed, the reaction temperatur...

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PUM

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Abstract

The invention relates to filter paper dipping resin emulsion of car engine, with the following components: styrene monomer 10-35%, acrylic ester monomer 10-35%, functional monomer 0.5-10%, emulsifier 0.5-5%, initiator 0.1-1% and deionized water 50-70%. The invention is uses by half-continue emulsion polermarization technology, with simple processive technique, friendly environment, low cost, and it can make the filter paper of car get ideal strength, destroying resistance, moisture resistance and enough deflexion, remarkably strenthed physical strength, mechanical stability and resistance to solvent.

Description

technical field [0001] The invention relates to a self-crosslinking auto engine filter paper impregnated resin emulsion and a preparation method thereof. Background technique [0002] Automobile engine filter filter paper is a common filter material. Compared with other filter materials, paper filter material has the advantages of low cost, good filtering effect, small size, light weight, and easy cleaning, so it is widely used. Filter paper made from papermaking fiber raw materials such as wood pulp, because its density is lower than ordinary paper, the paper is loose, low in intrinsic strength, soft in texture, cannot withstand the severe action of the processing process, and cannot meet the performance requirements of use as a filter material Therefore, the filter paper must be processed with resin to ensure the product quality and performance of the engine filter paper. The filter paper is impregnated with resin, which can improve the physical strength and structural st...

Claims

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Application Information

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IPC IPC(8): D21H17/33D21H21/18D21H27/08
Inventor 张庆华詹晓力陈丰秋
Owner ZHEJIANG UNIV
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