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Preparation method of anti-UV-aging vulcanized rubber adhesive

An adhesive and vulcanized rubber technology, applied in the field of vulcanized rubber materials, can solve problems such as poor stability and poor UV aging resistance, and achieve the effects of enhanced bonding strength, excellent UV aging resistance, and extended application scope.

Inactive Publication Date: 2017-01-11
青岛时空机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current commercial PP / EPDM blended thermoplastic vulcanizate has the characteristics of high strength, wide temperature range, oil resistance, and good processing fluidity. However, due to the presence of a large number of unstable tertiary carbon and hydrogen atoms in the PP molecule, It has poor stability and poor UV aging resistance. Generally, it is necessary to add additives such as antioxidants and UV absorbers to improve its stability and UV aging resistance; on the other hand, PP / EPDM blended thermoplastic vulcanization The hardness of the rubber is relatively high. In order to reduce the hardness, it is usually necessary to fill a large amount of softener in the thermoplastic vulcanizate, but there is a hidden danger of migration and precipitation of small molecules of the softener

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of preparation method of anti-UV aging property vulcanization adhesive, is characterized in that, specifically comprises the steps:

[0018] (1) Preparation of graphene carrier: add the vacuum-dried graphene into the polymerization flask under nitrogen environment, vacuum treatment at room temperature for 2 hours, and replace it with high-purity nitrogen gas for 3 times. After stirring for 45 minutes, add 3% of the pretreatment medium composed of titanium tetrachloride and magnesium chloride in a molar ratio of 1:1 to the mixture, and stir at a constant temperature of 40°C for 5 hours;

[0019] (2) Preparation of polymerization catalyst: Add the graphene carrier into the sealed ball mill jar after being replaced three times with high-purity nitrogen under nitrogen environment, and inject 8% of the graphene carrier into triisobutylaluminum and methylaluminoxane according to weight For aluminides with a ratio of 2:3, put the ball mill jar into a high-energy ball mi...

Embodiment 2

[0023] A kind of preparation method of anti-UV aging property vulcanization adhesive, is characterized in that, specifically comprises the steps:

[0024] (1) Preparation of graphene carrier: add the vacuum-dried graphene to the polymerization flask under nitrogen environment, vacuum treatment at room temperature for 2.5 hours, replace with high-purity nitrogen gas for 3 times, conduct constant temperature water bath at 55°C, and add acetone solvent , after stirring for 48min, add 4% of the pretreatment medium composed of titanium tetrachloride and magnesium chloride according to the molar ratio of 1:1, and stir at a constant temperature for 4h at 50°C;

[0025] (2) Preparation of polymerization catalyst: Add the graphene carrier into the sealed ball mill tank after three times of high-purity nitrogen replacement in a nitrogen environment, and inject 10% of the graphene carrier made of triisobutylaluminum and methylaluminoxane according to the weight For aluminides with a rati...

Embodiment 3

[0029] A kind of preparation method of anti-UV aging property vulcanization adhesive, is characterized in that, specifically comprises the steps:

[0030] (1) Preparation of graphene carrier: add the vacuum-dried graphene into the polymerization flask under nitrogen environment, vacuum treatment at room temperature for 3 hours, replace with high-purity nitrogen three times, and then conduct a constant temperature water bath at 60°C, add acetone solvent, After stirring for 50 minutes, add 5% of the pretreatment medium composed of titanium tetrachloride and magnesium chloride in a molar ratio of 1:1 to the mixture, and stir at a constant temperature of 60°C for 3 hours;

[0031] (2) Preparation of polymerization catalyst: Add the graphene carrier into the sealed ball mill tank after three times of high-purity nitrogen replacement in a nitrogen environment, and inject 12% of the graphene carrier into triisobutylaluminum and methylaluminoxane according to the weight For aluminides...

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Abstract

The invention discloses a preparation method of an anti-UV-aging vulcanized rubber adhesive. The method is characterized by comprising the following steps: (1) preparing a graphene carrier; (2) preparing a polymerization catalyst; (3) preparing compounded rubber; and (4) preparing the adhesive. The polymerization catalyst contains the lamellar graphene carrier, aluminide and a right amount of an anhydrous magnesium chloride carrier, and the active centers of the catalyst are stably distributed in the crystal defects on the anhydrous magnesium chloride surface and the hydroxy groups on the graphene surface, thereby being beneficial to the dispersion effects of nanoparticles. By using the EVA resin-polymerization catalyst-crosslinking agent TAIC (triallyl isocyanurate) blend system as the component of the compounded rubber, the EVA resin, polymerization catalyst and crosslinking agent TAIC have excellent UV aging resistance, the elongation at break is greater than 100%, and the tensile permanent deformation is lower than 50%. The accelerator, wetting and dispersing agent and other components are added to enhance the bonding strength and 90-degree peel strength for the metal substrate and rubber substrate, thereby greatly widening the application range of the rubber metal heat vulcanization adhesive.

Description

technical field [0001] The invention belongs to the technical field of vulcanized rubber materials, and in particular relates to a preparation method of an anti-UV aging vulcanized rubber adhesive. Background technique [0002] With the rapid development of the rubber industry, rubber composite materials are widely used in petrochemical, construction, transportation and other industrial fields by combining the high elasticity of rubber and the high strength of metal. Among them, the quality of rubber and metal adhesives is the key to the success of composite materials. The key is that with the increase in the types of composite products and the expansion of application fields, the requirements for bonding technology are becoming more and more stringent. [0003] As a new type of functional material, graphene has extremely high strength, excellent electrical conductivity, and good thermal conductivity. At present, graphene / polymer composite materials have been widely used. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J11/06C09J11/00
Inventor 宋应芝
Owner 青岛时空机械科技有限公司