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A kind of high wear-resistant rubber-plastic blended foam material and preparation method thereof

A foamed material and high wear resistance technology, applied in the field of polymer foam materials, can solve the problems of difficult control of cell structure, complicated experimental treatment process, large cell size, etc. Hole uniform effect

Active Publication Date: 2020-06-19
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improved supercritical carbon dioxide depressurization foaming method is used for one-time gas injection, continuous temperature rise, and multiple pressure relief to make the internal cells of the sample have connectivity. However, the experimental treatment process is complicated, and the cell structure is not easy to control. The size of the pores is larger and is not in the range of microporous plastics

Method used

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  • A kind of high wear-resistant rubber-plastic blended foam material and preparation method thereof
  • A kind of high wear-resistant rubber-plastic blended foam material and preparation method thereof
  • A kind of high wear-resistant rubber-plastic blended foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high wear-resistant rubber-plastic blended foam material, by weight, includes the following components:

[0036] 100 parts of polyurethane resin, 50 parts of natural rubber, 1.5 parts of accelerator A DZ, 1.0 parts of accelerator B CM, 1.2 parts of stearic acid, 1.5 parts of zinc oxide, 3.0 parts of azodicarbonamide, 1.0 parts of sodium bicarbonate, 50 parts of high wear-resistant carbon black, 3.0 parts of sulfur.

[0037] The preparation of the above-mentioned high wear-resistant rubber-plastic blended foaming material specifically includes the following steps:

[0038] (1) After mixing polyurethane resin and natural rubber in an open mill, masticate for 5 minutes at 80°C under normal pressure to obtain a rubber / plastic blend;

[0039] (2) Add the rest of the components to the rubber / plastic blend obtained in step (1), mix well and continue to knead for 12 minutes at 80°C under normal pressure in an open mill;

[0040] (3) Put the material obtained by mixing in st...

Embodiment 2

[0044] A high wear-resistant rubber-plastic blended foam material, by weight, includes the following components:

[0045] 100 parts of polyurethane resin, 40 parts of natural rubber, 0.5 parts of accelerator A DZ, 0.5 parts of accelerator B CM, 0.5 parts of stearic acid, 0.5 parts of zinc oxide, 2.0 parts of azodicarbonamide, 1.0 parts of sodium bicarbonate, high 30 parts of wear-resistant carbon black, 2.0 parts of sulfur.

[0046] The preparation of the above-mentioned high wear-resistant rubber-plastic blended foaming material specifically includes the following steps:

[0047] (1) After mixing polyurethane resin and natural rubber in an open mill, masticate at 60°C for 15 minutes under normal pressure to obtain a rubber / plastic blend;

[0048] (2) Add the remaining components to the rubber / plastic blend obtained in step (1), mix well and continue to knead for 5 minutes at 160°C under normal pressure in an open mill;

[0049] (3) Put the material obtained by mixing in ste...

Embodiment 3

[0053] A high wear-resistant rubber-plastic blended foam material, by weight, includes the following components:

[0054] 100 parts of polyurethane resin, 60 parts of natural rubber, 3.5 parts of accelerator A DZ, 3.5 parts of accelerator B CM, 4.5 parts of stearic acid, 5.5 parts of zinc oxide, 9.0 parts of azodicarbonamide, 1.0 parts of sodium bicarbonate, high 80 parts of wear-resistant carbon black, 8.0 parts of sulfur.

[0055]The preparation of the above-mentioned high wear-resistant rubber-plastic blended foaming material specifically includes the following steps:

[0056] (1) After mixing polyurethane resin and natural rubber in an open mill, masticate at 160° C. for 3 minutes under normal pressure to obtain a rubber / plastic blend;

[0057] (2) Add the remaining components to the rubber / plastic blend obtained in step (1), mix well and continue to knead for 15 minutes at 60°C under normal pressure in an open mill;

[0058] (3) Put the material obtained by mixing in st...

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Abstract

The invention discloses a high-wear-resistance rubber-plastic blend foaming material and a preparation method thereof. The foaming material is prepared from the following components in parts by weight: 100 parts of polyurethane resin, 40-60 parts of natural rubber, 0.5-3.5 parts of accelerator A, 0.5-3.5 parts of accelerator B, 0.5-4.5 parts of activator, 0.5-5.5 parts of zinc oxide, 3-10 parts of chemical foaming agent, 30-80 parts of high-wear-resistance carbon black and 2-8 parts of sulfurization crosslinking agent. According to the method, rubber / plastic blend is adopted as a base material; by adopting the primary composite environment-friendly foaming agent azodicarbonamide and the assistant foaming agent sodium bicarbonate and by taking sulfur as the sulfurization crosslinking agent and an inorganic filler high-wear-resistance carbon black as a reinforcing agent, the high-wear-resistance rubber-plastic blend foaming material is prepared by sequential processes of plastifying, mixing, foaming, sulfurization crosslinking and rapid decompression foaming. The high-wear-resistance rubber-plastic blend foaming material disclosed by the invention has the advantages of high wear resistance and high mechanical strength; meanwhile, the preparation technology is simple.

Description

technical field [0001] The invention relates to the field of polymer foam materials, in particular to a high wear-resistant rubber-plastic blended foam material and a preparation method thereof. Background technique [0002] Polymer foam material refers to a microporous material with numerous bubbles inside it based on polymer (plastic, rubber, elastomer or natural polymer material). There are many typical foaming materials, such as polyurethane (PU) foam, polystyrene (PS) foam, polyolefin foam, polyvinyl chloride (PVC) foam, phenolic foam and natural polymer foaming materials, but rubber-plastic blends There is less foam material. [0003] The foamed material of thermoplastic polymer is prepared by supercritical fluid rapid depressurization method (physical foaming), and generally a foamed material with a pore structure is obtained, and the cells are independent from each other. However, the improved supercritical carbon dioxide depressurization foaming method is used for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L7/00C08K13/02C08K3/22C08K3/04C08K5/47C08K5/09C08K3/06C08J9/10C08J9/08
CPCC08J9/08C08J9/103C08J2203/02C08J2203/04C08J2203/18C08J2205/052C08J2375/04C08J2407/00C08K2003/2296C08L75/04C08L2203/14C08L7/00C08K13/02C08K3/22C08K3/04C08K5/47C08K5/09C08K3/06
Inventor 王炳程何慧
Owner SOUTH CHINA UNIV OF TECH
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