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Preparation method of modified sulfur coated with two-component film forming agent

A technology of film-forming agent and film agent, which is applied in the field of chemical products, can solve the problems of low purity of insoluble sulfur products, is in the laboratory stage, and has not yet been industrialized, and achieves low modification cost, improved processing safety performance, and coating The effect of high modification efficiency

Inactive Publication Date: 2018-07-13
安徽固瑞特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to technical reasons, the insoluble sulfur products produced by domestic enterprises have problems such as low purity, high ash content, and poor heat resistance. Compared with products from foreign companies such as Flexsys, there is still a large gap
[0005] While developing insoluble sulfur technology in China, in recent years, they are also seeking to develop new processes for the production of environmentally friendly and safe coated sulfur. However, most of these new processes are still in the laboratory stage and have not yet been industrialized.

Method used

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  • Preparation method of modified sulfur coated with two-component film forming agent
  • Preparation method of modified sulfur coated with two-component film forming agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]4kg of alkyd resin with a solid content of 20%, 4kg of amino resin with a solid content of 5%, and 2kg of m-phenylenediamine m-PDA MPD with a solid content of 10% were added to the stirring tank through a metering tank, and 5kg of solid content was 10%. % silica powder suspension is added into a stirring tank and mixed evenly for use. Add 10kg of sulfur powder to the mixer in advance, and then add the above mixed suspoemulsion to the sulfur powder according to the required proportions and mix evenly. The above materials were mixed by a kneading mixer for 10 minutes, and then rolled 3 times by a two-roller roller. mm; after each crushing, the distance between the axes is adjusted to 22mm for the first level, 19mm for the 2nd level, and 15mm for the 3rd level. After dispersing, the mixed material is granulated by a swing granulator, and the wet material is sent to a fluidized bed dryer for drying. The drying temperature is 120 ° C. The dried product is crushed by a hammer...

Embodiment 2

[0044] Add 1kg of acrylic resin with a solid content of 70% and 1kg of amino resin with a solid content of 70% into the stirring tank through a metering tank, and add 4kg of silica suspension with a solid content of 50% into the stirring tank and mix evenly for use. Add 10kg of sulfur powder to the mixer in advance, and then add the above mixed suspoemulsion to the sulfur powder according to the required proportions and mix evenly. The above materials were mixed by a coulter mixer for 30 minutes, and rolled for 5 times by a two-roller roller. , the spacing between the 4th grade rollers is 0.8mm, and the 5th grade roller spacing is 0.5mm; after each rolling, the shaft spacing is adjusted to 20mm, the 2nd grade is 16mm, and the 3rd The distance between the shafts of level 4 is 13mm, the distance between the axes of level 4 is 12mm, and the distance between the axes of level 5 is 10mm. After dispersing, the mixed material is granulated by a swing granulator, and the wet material...

Embodiment 3

[0046] 2.5kg of hydroxy acrylic resin with a solid content of 40% and 2.5kg of amino resin with a solid content of 40% were added to the stirring tank through a metering tank, and 5kg of the calcium carbonate suspension with a solid content of 20% was added to the stirring tank and mixed evenly for use. Add 10kg of sulfur powder to the mixer in advance, and then add the above mixed suspoemulsion to the sulfur powder according to the required proportions and mix evenly. The above materials were mixed by a ribbon mixer for 20 minutes, and then rolled 7 times by a three-roller roller. mm, the 4-level roll spacing is 0.8mm, the 5-level roll spacing is 0.5mm, the 6-level roll spacing is 0.2mm, and the 7-level roll spacing is 0.1mm; after each rolling, it is scattered once, and the shaft spacing is adjusted to 1 level in turn. The distance between the dispersing shafts is 20mm, the distance between the two-level dispersing axes is 16mm, the distance between the three-level dispersin...

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Abstract

The invention relates to a preparation method of modified sulfur coated with a two-component film forming agent. The preparation method is characterized by comprising the following steps: successivelyadding various film forming agents in a stirring tank through a measuring tank for blending and adding an inorganic powder material suspension in the stirring tank for uniform mixing for later use; adding sulfur powder in a mixer in advance and then adding the mixed suspension in an accelerant powder according to the proportion requirements for uniform mixing; mixing the material by adopting themixer, then rolling through a roller, dispersing through a dispersing machine to obtain a mixed material, granulating by using an oscillating granulator, then conveying wet material grains in a dryerfor drying, crushing a dried product through a crusher, cooling, sieving and packaging to obtain a finished product. The preparation method provided by the invention has the advantages that the equipment requirements are simple, the cost is low, the safety is high, the preparation process is quick and efficient, the environment is friendly, no pollution exists, the release rate of sulfur is high at the sulfurization stage, no frost is sprayed, the processing safety performance of a rubber product is improved, and economic benefits are better.

Description

technical field [0001] The invention relates to a preparation method for coating modified sulfur with a two-component film-forming agent, belongs to the field of chemical products, and is mainly used in rubber products such as tires and other industries. Background technique [0002] With the increasing demand for rubber products, especially the consumption of tire products, the demand and quality of rubber additives are also increasing year by year. Sulfur, as a key vulcanization aid, has higher and higher requirements. [0003] At present, insoluble sulfur is recognized as the best rubber vulcanizing agent with the characteristics of non-blooming. It can improve the bonding strength between each layer of multi-layer rubber products, especially the bonding performance between steel wire and rubber when manufacturing tires. ② The insoluble sulfur is evenly distributed in the rubber compound, which effectively reduces the phenomenon of scorch during storage, prolongs the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K3/06C08K3/36C08K3/26C08K13/06C08L9/06C08L67/08C08L61/20C08L33/00C08L63/00
CPCC08K9/10C08K3/06C08K3/26C08K3/36C08K2003/265C08L9/06C08L67/08C08L61/20C08L33/00C08L63/00C08K13/06
Inventor 邵进邵彬彬沈家锋
Owner 安徽固瑞特新材料科技有限公司
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