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Duprene rubber foamed sheet and preparation method thereof

A neoprene and foam sheet technology, applied in the field of polymer processing, can solve problems such as discontinuity in the production process, achieve strong continuity, high elongation, and reduce human resource costs

Active Publication Date: 2009-03-25
常州美利晟高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of discontinuous production process existing in the prior art, the present invention proposes a new neoprene foamed sheet and its preparation method

Method used

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  • Duprene rubber foamed sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Formula: 100kg neoprene (CR), 10kg black ointment, 27kg carbon black, 1.3kg Aflux25, 3.3kg paraffin, 180kg kaolin, 20kg naphthenic oil, 33kg aromatic oil, 9.0kg dinitrosopentamethylene tetra Amine, 13kg zinc oxide, 6.7kg magnesium oxide, 1.2kg N,N'-diethylthiourea, 1.2kg ethylenethiourea, 4.7kg urea grease, 1.3kg dilauryl thiodipropionate, 2.0kg 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 3.3kg petrolatum. step:

[0044] 1) Mix neoprene, black ointment, carbon black, dispersant, and paraffin in a pressurized kneader for 400s;

[0045] 2) Mix the mixed material for 400s on an open mill;

[0046] 3) Mix with other ingredients in a pressurized kneader for 400s in the order of powder, oil, and rubber;

[0047] 4) mixing the mixed material for 420s on the open mill, and feeding the extruder into sheets;

[0048] 5) Send the mixed material into the extruder to extrude and measure, so that the volume of the tablet is slightly larger than the volume of the mold frame of...

Embodiment 2

[0053] Formula: 100kg neoprene (CR), 13kg black ointment, 18kg carbon black, 1.0kg Aflux25, 2.8kg paraffin, 45kg calcium carbonate, 12kg naphthenic oil, 20kg aromatic oil, 9kg azodicarbonamide, 8.5kg oxidation Zinc, 5.7kg magnesium oxide, 0.7kg N,N'-diethylthiourea, 2.0kg dilauryl thiodipropionate, 1.3kg stearic acid, 2.0kg petrolatum.

[0054] step:

[0055] 1) Mix neoprene, black ointment, carbon black, dispersant, and paraffin in a pressurized kneader for 450s;

[0056] 2) Mix the mixed material for 350s on an open mill;

[0057] 3) Mix with other ingredients in a pressurized kneader for 450s in the order of powder, oil, and rubber;

[0058] 4) Mix the mixed material for 400s on an open mill, and feed the extruder into sheets;

[0059] 5) Send the mixed material into the extruder to extrude and measure, so that the volume of the tablet is slightly larger than the volume of the mold frame of the first molding foaming machine;

[0060]6) Send the extruded tablet to the fi...

Embodiment 3

[0064] Formula: 100kg neoprene (CR), 15kg black ointment, 18kg carbon black, 1.5kg Aflux25, 2.8kg paraffin, 45kg calcium carbonate, 12kg naphthenic oil, 20kg aromatic oil, 9kg azodicarbonamide, 8.5kg oxidation Zinc, 5.7kg magnesium oxide, 0.5kg N,N'-diethylthiourea, 2.0kg dilauryl thiodipropionate, 1.7kg stearic acid, 2.0kg petrolatum.

[0065] Step: with embodiment 2.

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Abstract

The invention relates to a neoprene foaming board and a preparation method thereof. The neoprene foaming board is prepared by the following materials according to weight parts: 100 portions of neoprene, 15 portions to 200 portions of kaolin or calcium carbonate, 15 portions to 45 portions of carbon black, 10 portions to 20 portions of a vulcanizing agent, 0 portion to 2 portions of an accelerant, 5 portions to 15 portions of a vesicant, 0 portion to 5 portions of urea resin, 1 portion to 4 portions of olefin, 0 portion to 3 portions of dilauryl thiodipropionate, 0 portion to 2 portions of 2, 2'-methylene-bis(4-methyl-6- tert-butylphenol), 0 portion to 1 portion of nickel dibutyldithiocarbamate, 0 portion to 2 portions of stearic acid, 8 portions to 30 portions of black factice, 0 portion to 4 portions of vaseline, 10 portions to 20 portions of naphthenoid oil, 20 portions to 40 portions of perfume oil, and 1 portion to 4 portions of a dispersant. The preparation method thereof includes the steps of first-time mixing of a pressurizing milling machine, first-time mixing of a mixing mill, second-time mixing of the pressurizing milling machine, second-time mixing of the mixing mill, extrusion of an extruder, first-time foaming vulcanization, second-time foaming vulcanization, cooling and the like. The neoprene foaming board and the preparation method have the advantages of good flame resistance, high tensile strength, high extensibility, good performance of tear resistance, small compression set, good abrasion resistance and skidproof effect, good effect of shock absorption and the like.

Description

technical field [0001] The invention relates to a neoprene foamed board and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Neoprene has excellent mechanical strength, high ozone resistance and weather resistance, good aging resistance, low flammability, good chemical resistance, moderate oil resistance and flame resistance, etc. It is used under harsh and harsh environmental conditions, and the product has a long life and no chemical hazards. [0003] Chinese patent CN1982042A discloses a method for manufacturing a composite rubber runway, including neoprene, natural rubber, and EPDM rubber, adding waste tire rubber powder, white carbon black, pottery clay, zinc oxide, stearic acid, and naphthene Oils, flame retardants, UV absorbers, accelerated vulcanization systems, etc. Processing method Weigh the above-mentioned raw rubber and auxiliary materials according to the weight ratio, mix them in a closed rubber mixer,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08K13/02C08J9/10B29C69/00B29B7/00B29B7/28B29B7/72B29C47/12B29C44/60C08K3/34C08K3/26C08K3/04C08K3/22C08K5/405B29C48/30
Inventor 吴海宙
Owner 常州美利晟高分子科技有限公司
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