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A kind of automotive filter paper reinforced resin composition

A technology for strengthening resins and compositions, applied in the addition of non-polymeric organic compounds, paper, papermaking, etc., can solve the problems of high free phenol content, poor toughness, high hardness of materials, etc., and achieve process safety, stable performance, and environmental friendliness. Effect

Active Publication Date: 2015-09-30
杭州市化工研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the structural characteristics of phenolic resin itself, the resin has low elongation and high brittleness, and the material made from it has high hardness, high modulus, and poor toughness, and it is easy to generate stress cracks on the interface, which is not conducive to processing and use.
At the same time, there are free formaldehyde and high free phenol content, and the working environment of workers is bad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In a four-neck flask equipped with a condenser, a dropping device, a stirring rod and a thermometer, add 112 grams of water, 100 grams of phenol, and 8 grams of sodium hydroxide, and react at 45°C for 20 minutes; add 206.8 grams of formaldehyde, and heat up to 65 ℃, keep warm for 50 minutes; add 2 grams of sodium hydroxide, keep warm for 20 minutes, add 51.7 grams of formaldehyde, heat up to 80 ℃, add 20 grams of urea, add in two times, keep warm for 3.5 hours; cool down to 40 ℃ and discharge to obtain red Brown transparent liquid - modified water-soluble phenolic resin.

[0016] Get 100 grams of the synthesized modified water-soluble phenolic resin, 10 grams of polyvinyl alcohol, and 1 gram of carbonate, add water and stir and dilute to a concentration of 5%, to obtain a car filter paper reinforced resin composition product, which is used as a car filter paper dipping solution for subsequent use. The impregnated automobile filter paper is dried and solidified at 100-17...

Embodiment 2

[0018] In a four-necked flask equipped with a condenser, a dropping device, a stirring rod and a thermometer, add 113 grams of water, 100 grams of phenol, 10 grams of m-cresol, and 8.4 grams of potassium hydroxide, and react at 50 ° C for 10 minutes; add 240.8 Add 3.6 grams of potassium hydroxide, heat for 10 minutes, add 60.2 grams of formaldehyde, heat up to 85 degrees, add 20 grams of urea and 5 grams of melamine in two times, and keep warm for 2.5 hours; cool down Discharge at 40°C to obtain a reddish-brown transparent liquid—modified water-soluble phenolic resin.

[0019] Get synthetic modified water-soluble phenolic resin 100 grams, nitrile rubber 5 grams, add water and stir and dilute to 5% concentration, obtain product, standby as automobile filter paper dipping liquid. The impregnated automobile filter paper is dried and solidified at 100-170°C.

Embodiment 3

[0021] In a four-necked flask equipped with a condenser tube, a dropping device, a stirring rod and a thermometer, add 106 grams of water, 100 grams of phenol, 6 grams of sodium hydroxide, and 2 grams of sodium carbonate, and react at 55 ° C for 15 minutes; add 172.3 grams of Formaldehyde, heat up to 75°C, keep warm for 30 minutes; add 4 grams of sodium hydroxide, keep warm for 10 minutes; add 43 grams of formaldehyde, heat up to 90°C, add 10 grams of melamine in two times, keep warm for 2.5 hours; cool down to 40°C and discharge , to obtain a reddish-brown transparent liquid—modified water-soluble phenolic resin.

[0022] Get 100 grams of the synthesized modified water-soluble phenolic resin, 5 grams of nitrile rubber, 10 grams of epoxy resin, and 2 grams of glyceryl acetate, add water and stir and dilute to 5% concentration to obtain the product, which is used as an automobile filter paper dipping solution for subsequent use. The impregnated automobile filter paper is dri...

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PUM

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Abstract

The invention relates to an automobile filter paper reinforced-resin composition, can overcome the defects of the prior art and provides the novel resin composition. Through use of the novel resin composition, tensile strength, stiffness and break-resistant strength of impregnated filter paper can be obviously increased. An automobile filter paper reinforced-resin composition product is prepared as follows: adding 100 parts by weight of modified water-soluble phenol-formaldehyde resin, 5 to 30 parts by weight of a toughening resin, 0 to 10 parts by weight of a curing accelerator; and then adding water to dilute to a concentration of 3% to 10% to obtain the product. The modified water-soluble phenol-formaldehyde resin is prepared as follows: taking a phenol, the water and 60% to 80% of a catalyst to react at the temperature of 45 to 55 DEG C for 10 to 30 minutes; then adding 60% to 80% of formaldehyde, heating up to 60 to 75 DEG C for 30 to 60 minutes; adding the rest formaldehyde and the catalyst, heating up to 80 to 95 DEG C within half an hour, adding a modifier, and reacting for 2 to 5 hours; and finally cooling to 40 + / - 5 DEG C for material discharge.

Description

technical field [0001] The invention relates to an automobile filter paper impregnation solution, in particular to an automobile filter paper reinforced resin composition. Background technique [0002] As a filter material for cleaning modern high-speed internal combustion engines, automobile filter paper has important relations with the economic indicators, environmental protection indicators, safety indicators and the service life of the engine. It is also called "three filter papers", namely air filter paper, oil filter paper and Fuel filter paper. Compared with other materials, paper filter elements have the advantages of low cost, high efficiency, small size, light weight, and easy use. The pros and cons of the "three filters" directly affect the performance and service life of the engine, and are essential maintenance consumer goods during the use of motor vehicles. [0003] Usually, filter paper made from papermaking fiber raw materials such as wood pulp has low fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/48D21H17/36D21H17/37D21H17/52D21H17/05D21H17/14
Inventor 蒋健美贺贤璋陆伟王振雄
Owner 杭州市化工研究院有限公司