Method of producing sandwich-structure sensitization-free isolating condom from graphene laminating nano boron nitride compounded latex

A nano-boron nitride and composite latex technology, applied in male contraceptives and other directions, can solve the problems of poor weather resistance and deepening color, and achieve the effect of inertness, non-toxicity, scientific principle, and barrier penetration.

Active Publication Date: 2017-07-14
辽宁格莱菲尔健康科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Comparative international patent application: PCT / IN2014 / 000711, publication number: WO / 2015 / 068174, title: GRAPHENE BASED POLYMER COMPOSITES FOR PRODUCING CONDOMS WITH HIGH HEATTRANSFER, IMPROVED SENSITIVITY AND CAPACITY FOR DRUG DELIVERY (a graphene based polymer composite material production of condoms with high thermal conductivity, hypoallergenicity, and drug delivery), the article also uses pure graphene or derivatives to compound latex and other polymers to make condoms, and there is also a high probability of encountering poor weather resistance and deepening color question

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  • Method of producing sandwich-structure sensitization-free isolating condom from graphene laminating nano boron nitride compounded latex
  • Method of producing sandwich-structure sensitization-free isolating condom from graphene laminating nano boron nitride compounded latex
  • Method of producing sandwich-structure sensitization-free isolating condom from graphene laminating nano boron nitride compounded latex

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Embodiment 1

[0032] In this embodiment, the method of preparing interlayer non-sensitive isolation condom by laminating graphene with nano-boron nitride composite latex is as follows:

[0033] Preparation of graphene / hexagonal nanosheet boron nitride bonded body solution: 1kg of graphene oxide aqueous solution with a concentration of 2wt‰ is negatively charged after being charged by an electric field. 1 kg of an aqueous solution containing 0.1wt‰ hexagonal boron nitride nanosheet material was modified with 0.1wt‰ polyvinylpyrrolidone. Then the two are mixed and stirred ultrasonically to make them dispersed evenly. Adding 10Kg concentration then is the natural rubber latex of 60wt% in the clean mixing bucket, under agitation condition, add gradually the graphene / hexagonal nanosheet boron nitride bonding body solution of 2.1wt‰ that the 2Kg concentration that prepares in front, add After finishing, add 0.1wt‰ dispersion stabilizer Pingpingjia O (alkyl polyoxyethylene ether) in an appropriat...

Embodiment 2

[0040] In this embodiment, the method of preparing interlayer non-sensitive isolation condom by laminating graphene with nano-boron nitride composite latex is as follows:

[0041] Preparation of graphene / hexagonal nanosheet boron nitride bonded body solution: 1kg of graphene oxide with a concentration of 1wt‰ and an aqueous solution of aminated graphene with a concentration of 1wt‰ were negatively charged after being charged by electrodialysis. 1 kg of aqueous solution containing 0.1wt‰ hexagonal boron nitride nanosheet material was modified with 0.1wt‰ sodium dodecylsulfonate. Then the two are mixed and stirred ultrasonically to make them dispersed evenly. Adding 10Kg concentration then is the natural rubber latex of 60wt% in the clean mixing bucket, under agitation condition, add gradually the graphene / hexagonal nanosheet boron nitride bonding body solution of 2.1wt‰ that the 2Kg concentration that prepares in front, add After finishing, 0.1wt‰ dispersion stabilizer polyvin...

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Abstract

The invention relates to the field of composite materials and medical appliances, and particularly provides a method of producing a sandwich-structure sensitization-free high-isolating condom from graphene laminating nano boron nitride compounded latex. The method includes the steps of: a) laminating and compounding graphene treated in an electric field and modified hexagonal nano-lamella boron nitride according to weight mass ratio of 5-2000%; b) compounding the compound in the step a) with latex according to solid mass ratio of 0.005-1%, wherein the prepared compound latex liquid is used in a second impregnation step, while in the first and third impregnation steps, a normal latex material is applied for impregnation, thereby finally producing the sensitization-free high-isolating condom having a sandwich structure. The condom in the invention has a stable transparent color and is not liable to have defects, such as graying, darkening, allergy of skin contact, and poor weather-resistant stability, due to deterioration of graphene. When the graphene is laminated with the nano-lamella boron nitride, which is also called white graphene, the tensile strength, flexibility and heat conductivity of latex are improved and permeation of virus liquid is effectively isolated.

Description

technical field [0001] The invention relates to the field of composite materials and medical devices, in particular to a method for preparing interlayer non-sensitive and high-isolation condoms by laminating graphene with nano-boron nitride composite latex. Background technique [0002] The vast majority of condoms are made of natural latex, which has many advantages and some disadvantages, such as: latex naturally forms micropores with diameters ranging from hundreds to thousands of nanometers [1] , Some AIDS (maximum diameter: 120nm), hepatitis B (maximum diameter: 42nm), human papilloma (maximum diameter: 55nm), etc. may have the possibility of spreading through micropores. [0003] Both graphene and hexagonal nanosheet boron nitride are two-dimensional nanomaterials with extremely high sheet diameter / thickness ratio, good toughness and impermeability [2] . However, all modified graphene, graphene oxide and reduced graphene will turn gray-black after a long time, even t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/20C08J5/00C08L7/02C08K9/04C08K3/04C08K3/38A61F6/04
CPCA61F6/04C08J3/20C08J5/00C08J5/005C08J2307/02C08K3/04C08K3/38C08K9/04C08K9/08C08K2003/385C08K2201/011C08K2201/014C08L7/02
Inventor 郑金木乔素珍张柏华
Owner 辽宁格莱菲尔健康科技有限公司
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