Solvent-resistance polyurethane rubber roller and manufacturing method and application thereof

A polyurethane and solvent-resistant technology, which is applied in the field of solvent-resistant polyurethane rubber rollers and its preparation, can solve problems such as difficult to process smooth surfaces, large changes in hardness, and decreased mechanical properties, so as to improve the problem of rubber becoming brittle and surface grinding Excellent performance and improved mechanical properties

Active Publication Date: 2013-12-25
东莞华工佛塑新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common solvent-resistant polyurethane rubber rollers on the market have certain solvent-resistant effects and mechanical properties, but after a period of use, the hardness changes greatly, the mechanical properties drop seriously, the tensile strength and tear strength drop sharply, and the rubber becomes very brittle
On the other hand, ordinary solvent-resistant polyurethane rubber rollers have good wear resistance, but surface grinding is difficult, and it is difficult to process a surface with a high degree of smoothness.

Method used

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  • Solvent-resistance polyurethane rubber roller and manufacturing method and application thereof
  • Solvent-resistance polyurethane rubber roller and manufacturing method and application thereof
  • Solvent-resistance polyurethane rubber roller and manufacturing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Get the following commercially available raw materials, and each of the following raw materials is expressed in mass percentage (%):

[0035]

[0036]

[0037] The preparation method is:

[0038] Step 1: Stir polyethylene adipate diol, polyethylene adipate propylene glycol ester diol, polycarbonate diol, and polycaprolactone triol together and heat to 120°C, then vacuum dehydrate for 2 ~3 hours until the moisture content is lower than 0.05%; then cool down to 60°C, add toluene diisocyanate and react at 65°C for 2 hours, then raise the temperature to 85°C for 1 hour to obtain component A.

[0039] Step 2: Stir and mix chlorinated paraffin, butyl benzyl phthalate and diethylene glycol dibenzoate evenly; add fumed silica and silica to disperse at high speed for 30 minutes, heat to 120°C, Vacuum dehydration for 2 to 4 hours until the moisture content is lower than 0.05%; then cool down to 80°C, add 4,4'-diphenylmethane diisocyanate and stir for 30 minutes to obtain c...

Embodiment 2

[0044] Get the following commercially available raw materials, and each of the following raw materials is expressed in mass percentage (%):

[0045]

[0046]

[0047] via the following method:

[0048] Step 1: Stir and heat polytrimethylene adipate diol, polyethylene adipate propylene glycol triol, polycarbonate diol, and polycaprolactone triol together to 120°C, vacuum dehydration for 2 to 3 hours until the moisture content is lower than 0.05%; then cool down to 60°C, add toluene diisocyanate to react at 63°C for 2 hours, then raise the temperature to 83°C for 1 hour to obtain component A.

[0049] Step 2: Stir and mix chlorinated paraffin, butyl benzyl phthalate and dibutyl phthalate evenly; add fumed silica and light calcium carbonate to disperse at high speed for 30 minutes, heat to 120°C, and vacuum dehydrate 2 to 4 hours, until the moisture content is lower than 0.05%; then cool down to 80°C, add 4,4'-diphenylmethane diisocyanate and stir for 30 minutes to obtain ...

Embodiment 3

[0054]Get the following commercially available raw materials, and each of the following raw materials is expressed in mass percentage (%):

[0055]

[0056]

[0057] Through the same method as in Example 2, the required solvent-resistant polyurethane rubber roller product can be obtained.

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Abstract

The invention discloses a solvent-resistance polyurethane rubber roller and a manufacturing method and application thereof, and belongs to the field of rubber roller preparing. The solvent-resistance polyurethane rubber roller is achieved through combination of multicomponent systems and is formed by mixing and pouring a material component A, a material component B and a material component C, wherein the material component A comprises, by mass, 40%-60% of polyester polyol and 7%-20% of toluene disocynate, the material component B comprises, by mass, 2%-10% of 4-4'-diphenylmethane diisocyanate, 5%-40% of plasticizer and 1%-4% of filler, and the material component C comprises, by mass, 2.5%-8% of chain extender and 0.02%-0.05% of catalysts. The wear-resistance, solvent-resistance and mechanical properties of the solvent-resistance polyurethane rubber roller are obviously improved, and the solvent-resistance polyurethane rubber roller can be widely used in the fields of printing, coating and painting.

Description

technical field [0001] The invention belongs to the field of rubber roller preparation, in particular to a solvent-resistant polyurethane rubber roller and its preparation method and application. Background technique [0002] Polyurethane elastomer (PUE) has excellent solvent resistance and mechanical properties. It is used to make printing rubber rollers, coating rollers, screen printing scrapers and other products. It is widely used in color steel coating, wooden floor painting, shoe materials , printing, aluminum foil processing, canning and other industries. The common solvent-resistant polyurethane rubber rollers on the market have certain solvent-resistant effects and mechanical properties, but after a period of use, the hardness changes greatly, the mechanical properties drop seriously, the tensile strength and tear strength drop sharply, and the rubber material becomes very brittle. On the other hand, ordinary solvent-resistant polyurethane rubber rollers have good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08G18/66C08G18/42C08G18/44
Inventor 翟丽邹明清庞坤玮
Owner 东莞华工佛塑新材料有限公司
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