Preparation method of graphene complex latex sponge

A graphene composite, latex sponge technology, applied in the field of latex sponge preparation, can solve the problems of single product function, easy aging, low mechanical properties, etc., and achieve the effects of simple production process, not easy to aging, and excellent mechanical properties

Inactive Publication Date: 2017-07-14
YANGZHOU UNIV
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Problems solved by technology

However, latex sponge products also have many performance defects, such as low mechanical properties, easy aging, single product functions, etc.
As consumers pay more and more attention to the quality of latex spo

Method used

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  • Preparation method of graphene complex latex sponge

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Embodiment Construction

[0014] The present invention will be further described below through specific implementation, but not limited thereto.

[0015] 1. Preparation of graphene modifier:

[0016] Take 25-30 kg of water, 40-50 kg of sulfuric acid, 25-30 kg of potassium permanganate, 10-15 kg of graphite powder, and 0.5-8 kg of sodium octadecylsulfonate.

[0017] Preparation:

[0018] (1) The graphite powder was oxidized by the Hummer method to prepare graphene oxide.

[0019] (2) Stir graphene oxide, sodium octadecylsulfonate and water at 20-30° C. under ultrasonic conditions for 0.5-5 hours to prepare a graphene oxide aqueous solution.

[0020] (3) Freeze-dry the graphene oxide aqueous solution at -20~-50°C to obtain the graphene modifier.

[0021] Performance investigation of graphene modifier:

[0022] (1) Transmission electron micrographs of graphene modifiers such as figure 1 Shown: the graphene in the improver is a flake carbon material with a diameter of about 0.5 μm.

[0023] (2) Take ...

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Abstract

The invention relates to a preparation method of graphene complex latex sponge and belongs to the technical field of latex sponge preparation. The preparation method comprises the following steps: carrying out ultrasonic mixing on natural latex, a graphene improver, sulphur and water, and carrying out ultrasonic mixing on zinc oxide, diphenylguanidine, sodium fluosilicate and potassium oleate; remixing the two mixtures to obtain uniform emulsion, then carrying out physical foaming on the emulsion, then putting in a mould to be cured, and demoulding, so that the graphene complex latex sponge is obtained. The preparation method provided by the invention is simple and reasonable in production technology, the graphene improver is adopted in the production process, and excellent mechanical properties of graphene are utilized, so that mechanical properties of the sponge are enhanced, and the product has excellent stretchability and resilience and is difficult to be aged. The hardness of the product can reach 30-45KPa, the resilience reaches 90-95%, and the tensile strength reaches 150-200KPa.

Description

technical field [0001] The invention belongs to the technical field of latex sponge preparation. Background technique [0002] Latex sponge is a sponge product with a multi-cellular structure that uses natural rubber as the main raw material. Because of its high elasticity, high air permeability, green environmental protection and other characteristics, it is widely used in household products such as seats, sofas, mattresses and sports equipment. However, latex sponge products also have many performance defects, such as low mechanical properties, easy aging, and single product functions. As consumers increasingly pay attention to the quality of latex sponges, common common latex sponge products are difficult to meet people's high requirements. Therefore, the development of high-strength and multifunctional latex sponge products is an urgent demand in the market. Contents of the invention [0003] The purpose of the present invention is to provide a kind of preparation me...

Claims

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Application Information

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IPC IPC(8): C08L7/02C08K13/06C08K9/04C08K3/04C08K3/06C08K3/22C08K5/31C08K3/34C08K5/098C08J9/00
CPCC08K13/06C08J9/0023C08J9/0028C08J9/0066C08J9/0095C08J2307/02C08K3/04C08K3/06C08K3/22C08K3/34C08K5/098C08K5/31C08K9/04C08K2003/2296C08L2203/14C08L7/02
Inventor 张旺柴华刁国旺
Owner YANGZHOU UNIV
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