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Heat curing adhesive for oil filter and preparation method of heat curing adhesive

An oil filter, heat curing technology, applied in the direction of adhesives, adhesive types, non-polymer adhesive additives, etc. Thermal and antistatic properties, good thermal and mechanical properties, durability and good aging resistance

Inactive Publication Date: 2017-05-10
佛山市豹王滤芯制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adhesives that can be cured at room temperature can be used for air filters, and adhesives that can be cured at room temperature are not suitable for oil and fuel filters due to their high operating temperature, and heat-cured adhesives are often used. Part of methanol or ethanol is also added to gasoline. These alcohols can dissolve and extract certain components of the adhesive, resulting in a decrease in the bonding strength between the filter element and the end cover or even falling off, causing the filter to be scrapped ahead of time, which will cause Engine wears out early, reducing service life
At present, the heat-curing adhesives for oil filters used in China have the following disadvantages: 1) Foaming holes in the colloid after curing, and the colloid is not dense; 2) The bonding strength is poor; 3) The production process has a lot of smoke, heavy smell, and environmental protection The test failed to pass the EU REACH regulations; 4) The rubber material is rough and the appearance is poor
The chemical properties of stannous chloride and stannous octoate used in the thermoplastic adhesive are extremely unstable and easily oxidized, so there are strict requirements on the preparation and use of the adhesive, which limits its application

Method used

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  • Heat curing adhesive for oil filter and preparation method of heat curing adhesive
  • Heat curing adhesive for oil filter and preparation method of heat curing adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of Embodiment 1 Modified Imidazole Derivatives

[0028] Get 12.4g of 2,3-dimethylol substituted imidazole and 24.8g of succinic anhydride and mix, add ethanol to dissolve in the ratio of 1:8 by the mass ratio of the mixture and ethanol, and add phosphotungstic acid as a catalyst at the same time, the phosphotungstic acid The mass fraction of the acid in the system was 0.5%, reacted at 80°C for 2.5h, then distilled under reduced pressure to remove ethanol and unreacted succinic anhydride, and then used column chromatography to further remove unreacted 2,3 - Substituting imidazole with dimethylol to obtain a modified imidazole derivative, and the yield of the modified imidazole derivative is 90.24%.

Embodiment 2

[0029] Embodiment 2 heat curing adhesive preparation

[0030] The thermosetting adhesive of Example 2 of the present invention is composed of the following preparation raw materials in percentage by weight: 20% of polyvinyl chloride paste resin, 10% of epoxy resin, 20% of plasticizer, 1.5% of modified imidazole derivatives, ethylene Distearic acid amide 4%, calcium carbonate 35%, odorless kerosene 1%, pentaerythritol palmitate 3%, calcium oxide 4% and calcium zinc stabilizer 1.5%;

[0031] Wherein, the plasticizer is composed of dioctyl terephthalate, dodecylpyrrolidone and epoxy butyl furfurate with a mass ratio of 1:0.6:0.2; the modified imidazole derivative is the product obtained in Example 1 .

[0032] Preparation:

[0033] (1) Mix polyvinyl chloride paste resin and plasticizer, and carry out high-speed dispersion and stirring for 30 minutes;

[0034] (2) Stabilize the high-speed dispersed material in step (1) with epoxy resin, modified imidazole derivatives, ethylene ...

Embodiment 3

[0036] Embodiment 3 thermosetting adhesive preparation

[0037] The thermosetting adhesive of Example 3 of the present invention consists of the following preparation raw materials in percentage by weight: 15% of polyvinyl chloride paste resin, 15% of epoxy resin, 25% of plasticizer, 1% of modified imidazole derivative, ethylene Distearic acid amide 2%, calcium carbonate 30%, odorless kerosene 2%, pentaerythritol palmitate 4%, calcium oxide 3% and calcium zinc stabilizer 3%.

[0038]Wherein, the plasticizer is composed of dioctyl terephthalate, dodecylpyrrolidone and epoxy butyl furfurate with a mass ratio of 1:1:0.6; the modified imidazole derivative is the product obtained in Example 1 .

[0039] The preparation method is the same as in Example 1.

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Abstract

The invention belongs to the technical field of filter adhesives and particularly relates to a heat curing adhesive for an oil filter. The heat curing adhesive is prepared from the following raw materials in percentage by weight: 15%-25% of polyvinyl chloride paste resin, 10%-15% of epoxy resin, 20%-30% of a plasticizer, 1%-3% of a modified imidazole derivative, 2%-4% of ethylene bis-stearamide, 25%-35% of calcium carbonate, 1%-2% of a diluent, 2%-4% of pentaerythritol tetra(2-hexyldecanoate), 2%-4% of calcium oxide and 1%-3% of a calcium and zinc stabilizer. The heat curing adhesive has stable and reliable performance, high adhering strength and good high temperature resistance, oil resistance and anti-aging performance; colloid after curing has no foaming hole and is dense, mechanical properties are excellent, and the adhesive is applicable to the filter and can also be used for adhering materials such as metal, plastic, rubber, glass, ceramics and the like.

Description

technical field [0001] The invention relates to the technical field of filter adhesives, in particular to a thermosetting adhesive for oil filters and a preparation method thereof. Background technique [0002] The filter is one of the key components to ensure the durability and reliability of the engine. It is usually divided into air, oil and fuel filters. The oil filter, also known as the oil filter, is used to remove dust and metal particles in the oil , Carbon deposits and soot particles and other impurities to protect the engine. With the gradual implementation of emission regulations, the advancement of engine technology has put forward new and higher requirements for filter products, which shows the importance of filters for engine matching. And with the development of science and technology, the filter is gradually unified in structure, and paper filter is mostly used for filtering. [0003] The filter adhesive is used for the bonding of the paper filter element o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J127/06C09J163/00C09J11/06C09J11/04C08G59/50
CPCC08G59/5073C08L2201/08C09J11/04C09J11/06C09J127/06C09J163/00C08L63/00C08K13/02C08K5/12C08K5/20C08K2003/265C08L27/06
Inventor 杨广博莫基
Owner 佛山市豹王滤芯制造有限公司
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