Making method of anti-sticking polyurethane elastomer lining plate

A technology of polyurethane elastomer and lining plate, applied in the field of preparation of anti-stick polyurethane elastomer lining plate, can solve the problems of reducing material mechanical properties, environmental pollution, etc., and achieves reduction of production labor intensity, production cost, and good comprehensive mechanical properties. Effect

Active Publication Date: 2013-08-28
太原英可奥笔墨科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In the process of preparing fluorine-containing polyurethane elastomer in the above two methods, the fluorine-containing diamine chain extender is dissolved in organic solvents such as butanone and dioxane, and the content of the organic solvent is 50% to 70% of the total weight. , Bubbles will be generated in the elastomer during the curing process, which will reduce the mechanical properties of the material, and the organic solvent will pollute the environment

Method used

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  • Making method of anti-sticking polyurethane elastomer lining plate
  • Making method of anti-sticking polyurethane elastomer lining plate

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Experimental program
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Effect test

specific Embodiment approach 1

[0030] Implementation of the present invention for the preparation of the above-mentioned anti-adhesive polyurethane elastomer liner The specific preparation process is as follows: (feeding amount is carried out in parts by mass)

[0031] 1) Melt 100 parts of polyester polyol and place it in a blue sand mill, add 0.5 parts of molybdenum disulfide micropowder and 1 part of colloidal graphite micropowder, and disperse 8 to 10 parts in the blue sand mill at 1000r / min. / min, then move all the above materials into the reaction kettle, heat up to 120-130 ℃, keep the vacuum at 0.08-0.09 Mpa, under the action of stirring, vacuumize and dehydrate for 2 hours, then stop vacuuming. Then lower the temperature of the material in the reactor to about 40°C, then add 15.5 parts of toluene diisocyanate and 22.5 parts of diphenylmethane diisocyanate, raise the temperature to 80±2°C and keep it warm for 2.5 hours of polymerization reaction, then start the vacuum device for defoaming for 30 minute...

specific Embodiment approach 2

[0037] 1) Melt 100 parts of polyester polyol and place it in a blue sand mill, add 2 parts of molybdenum disulfide micropowder and 2 parts of colloidal graphite micropowder, and disperse in the blue sand mill at 1000r / min for 8-10 / min, then move all the above materials into the reaction kettle, heat up to 120-130 ℃, keep the vacuum at 0.08-0.09 Mpa, under the action of stirring, vacuumize and dehydrate for 2 hours, then stop vacuuming. Then lower the temperature of the material in the reactor to about 40°C, then add 17.0 parts of toluene diisocyanate and 24.5 parts of diphenylmethane diisocyanate, raise the temperature to 80±2°C and keep it warm for polymerization reaction for 2.5 hours, then start the vacuum device for defoaming for 30 minutes , and a polyurethane prepolymer with a free isocyanate group-NCO mass content of 6% was obtained.

[0038] 2) Take 100 parts of the above polyurethane prepolymer in the mixing device, add 2 parts of dodecafluoroheptanol and TDI-100 com...

Embodiment 2

[0043] Embodiment 2 actual test results are shown in Table 3

[0044] Table 3. Properties of Anti-Stick Polyurethane Elastomer Liners

[0045] .

[0046]

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Abstract

A making method of an anti-sticking polyurethane elastomer lining plate comprises the following steps: putting polyester polyol in a sand mill, adding molybdenum disulfide micropowder and colloidal graphite micropowder, dispersing, placing the obtained mixture in a reaction kettle, heating, carrying out vacuum pumping stirring dehydration, cooling, adding toluene diisocyanate and methyl diphenylene diisocyanate, heating, carrying out a polymerization reaction, and defoaming to prepare a polyurethane prepolymer; adding 1H,1H,7H-dodecafluoro-1-heptanol, a TDI-100 compound, triethyl silane and polytrifluoropropylmethylsiloxane, stirring, and carrying out heating reacting and defoaming to obtain a polyurethane prepolymer mixture containing fluorine and silicon; and heating 3,3'-dichloro-4,4'-diaminodibenzyl methane for melting, mixing with the polyurethane prepolymer mixture containing fluorine and silicon, carrying out cast molding by a casting machine, and carrying out release vulcanizing to make the anti-sticking polyurethane elastomer lining plate. The lining plate has the advantages of seismic resistance, low noise, sticking resistance, wear resistance and the like, and can satisfy the requirements of the lining plate in the material transportation process of all industries.

Description

technical field [0001] The invention relates to a preparation method of a polyurethane elastomer material, in particular to a preparation method of an anti-adhesive polyurethane elastomer liner used by iron and steel enterprises in a low-temperature environment. Background technique [0002] Various hoppers and large silos are common in industrial production, especially in steel production, coal mines and some mining enterprises, where they are frequently used in the process of conveying various materials. Most of these hoppers and silos are welded sheet metal, and some are lined with polymer sheets. During the use of these hoppers and silos, due to the impact of material conveying, the noise of the pure metal sheet is relatively large, and the noise of the lined polymer sheet will be greatly reduced. But no matter the metal plate or the polymer plate lined with it, in the case of low winter temperature, especially in northern China, the material will adhere to the hopper a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/42C08G18/32C08G18/10C08K13/02C08K3/30C08K3/04C08K5/205C08K5/5419C08L75/06
Inventor 赵凌云
Owner 太原英可奥笔墨科技有限公司
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