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Soft-hard integrated composite material with hardness gradient, preparation method and application

A composite material and hardness gradient technology, which is applied in transportation and packaging, special tires, tire parts, etc., can solve problems such as product damage, no soft and hard gradient materials, and stress concentration at the soft and hard interface

Active Publication Date: 2019-05-28
山东轻化致远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

The bonding of the two will inevitably cause stress concentration at the soft and hard interface, which will easily cause product damage
However, since there are currently no soft and hard gradient materials to choose from, they can only be prepared directly using elastomeric materials.

Method used

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  • Soft-hard integrated composite material with hardness gradient, preparation method and application
  • Soft-hard integrated composite material with hardness gradient, preparation method and application
  • Soft-hard integrated composite material with hardness gradient, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The specific formula of the hard end is:

[0053]

[0054] The specific formula of the transition section

[0055]

[0056] The specific formula of the soft end is:

[0057]

[0058]

[0059] According to the above hard-end formula, transition section formula and soft-end formula, according to the traditional rubber milling, banburying, kneading or extrusion mixing process, according to the addition of rubber-activator-filler-softener-anti-aging agent-vulcanizing agent Sequentially, the above three formulas are mixed respectively to obtain semi-finished products of mixed rubber for protective layer and semi-finished products of mixed rubber for soft liner, which are parked for more than 16 hours for use. The kneading temperature of the protective layer is 60°C±10°C; the kneading temperature of the soft lining is normal temperature plus cooling water circulation cooling.

[0060] According to the same ratio, weigh the same amount of hard end compound, trans...

Embodiment 2

[0063] The specific formula of the hard end is:

[0064]

[0065]

[0066] The specific formula of the transition section is:

[0067]

[0068] The specific formula of the soft end is:

[0069]

[0070] According to the above hard-end formula, transition section formula (9) and soft-end formula, according to the traditional rubber kneading, banbury, kneading or extrusion mixing process, according to rubber-activator-filler-softener-antiaging agent- The order of adding the vulcanizing agent is to knead the above eleven formulas respectively to obtain semi-finished hard-end mixed rubber, semi-finished transition-section mixed rubber and semi-finished soft-end mixed rubber, which are stored for more than 16 hours for use. The mixing temperature of the hard end and transition section is 70°C±10°C; the mixing temperature of the soft end is normal temperature plus cooling water circulation cooling.

[0071] According to the same ratio, weigh the same amount of hard-end...

Embodiment 3

[0075] The specific formula of the hard end is:

[0076]

[0077] The specific formula of the transition section is:

[0078]

[0079] The specific formula of the soft end is:

[0080]

[0081] The metal material is ordinary steel plate

[0082] According to the above hard-end formula, transition section formula (19) and soft-end formula, according to the traditional rubber milling, banburying, kneading or extrusion mixing process, according to rubber-activator-filler-softener-anti-aging agent- The order of adding the vulcanizing agent is to knead the above twenty-one formulas respectively to obtain semi-finished hard-end mixed rubber, semi-finished transition-section mixed rubber and semi-finished soft-end mixed rubber, which are stored for more than 16 hours for use. The mixing temperature of the hard end and transition section is 80°C±10°C; the mixing temperature of the soft end is normal temperature plus cooling water circulation cooling.

[0083] According to ...

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Abstract

The invention discloses a soft-hard integrated composite material with hardness gradient and a preparation method. The composite material is co-vulcanized into an integrated structure by materials different in hardness, wherein a hard end is plastic or vulcanized plastic; a soft end is vulcanized rubber; and a transitional section is between the hard end and the soft end, and the hardness of the transitional section is between the hardness of the hard end and the hardness of the soft end. The preparation method comprises the step that the hard end, the transitional section and the soft end areco-vulcanized into the integrated structure to prepare the soft-hard integrated composite material with hardness gradient. According to the invention, the soft-hard integrated composite material witha hardness gradient function is prepared by utilizing the properties, such as crystallization under normal temperature and the easiness of contained double bonds to be co-vulcanized with the traditional rubber, of plastic materials such as eucommea rubber; and the soft-hard integrated composite material with hardness gradient can be widely applied in the fields of tyres, silencing, shock absorption, aerospace, automotive industry, mechanical manufacture and rail transportation and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and furthermore, relates to a soft-hard integrated composite material with a hardness gradient, a preparation method and an application thereof. Background technique [0002] Polymer materials, especially elastomer materials such as rubber, have many flexible connections in the fields of tires, noise reduction, vibration reduction, aerospace, automobile industry, machinery manufacturing, and rail transportation. For example, in the field of tires, more than 90% of the current tires are radial tires, which requires the bonding of rubber and metal steel cords, and the bonding of steel cables twisted from metal wires is also required in the apex part; the reduction of bridges and buildings The vibration support also needs the bonding of the metal plate and the rubber to ensure sufficient support strength while damping the vibration; the sound-absorbing cover of the submarine also needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L9/06C08L9/02C08K3/04C08K3/06C08K3/22C08K5/09C08K13/02C08K3/36B60C1/00
Inventor 张继川向同张立群
Owner 山东轻化致远新材料科技有限公司