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Polymer composition comprising dispersed plant material

A plant material and composition technology, applied in the field of composite materials, can solve the problems of poor resistance and achieve excellent resistance

Inactive Publication Date: 2018-07-31
ARKEMA FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural rubber is known to have very poor resistance to UV radiation, and moreover it must be crosslinked to prevent its creep, especially at high temperatures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0139] The following examples illustrate the invention without limiting it.

[0140] The formulation of the composite material according to the invention is produced by:

[0141] - a pMMA-pBA-pMMA triblock copolymer containing 50% by weight of pBA, wherein the weight-average molar mass of the pBA block is 50000 g / mol;

[0142] - and powder of cork pellets.

[0143] In test A, the cork pellets have a density of 50 to 60 kg / m 3 , and at least 80% of the pellets (by weight) have a particle size of 0.5 to 1 mm.

[0144] In test B, the cork pellets have a density of 50 to 60 kg / m 3 , and at least 80% of the pellets (by weight) have a particle size of 1 to 2 mm.

[0145]In both tests, the triblock copolymer / cork particle weight ratio was 80 / 20.

[0146] In (comparative) test C, pure copolymer was used, without cork particles.

[0147] The composite material of the present invention is obtained by combining acrylic block copolymer and cork particles in MKS30 co-kneader compou...

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Abstract

The invention relates to a composition comprising: a polymer matrix comprising an elastomer phase having a glass transition temperature of less than or equal to 20 DEG C; and particles of plant matterdispersed in said polymer matrix. The invention also relates to the use of this composition for the manufacture of various articles such as plates and in particular insulation plates, films, profiles, shells, electrical appliance parts, spectacles and soles.

Description

technical field [0001] The present invention relates to composite materials comprising a polymer matrix and dispersed plant material particles, and articles that can be manufactured from the composite materials. Background technique [0002] Plant materials such as cork have many advantageous properties such as thermal insulation, sound insulation, natural appearance, light weight and pleasant smell. [0003] However, these materials, and especially cork, often have the disadvantage of being friable and brittle. It cannot therefore be used according to the techniques normally used for thermoplastics, such as injection moulding, extrusion, extrusion blow moulding, thermoforming and the like. [0004] In order to overcome the disadvantages associated with the use of pure vegetable material such as cork, the material can be mixed with a polymer. [0005] Thus, document CN 104608270, according to its abstract, describes a mixture of cork and ethylene-vinyl acetate. The cork i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L97/00
CPCC08L53/00C08L97/007C08F212/08C08F214/22C08J5/045
Inventor J-M.布蒂利耶A.萨利尼尔
Owner ARKEMA FRANCE SA
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