Method for preparing polyvinyl alcohol spin dope added with carbon nano-tube
A technology of polyvinyl alcohol spinning and carbon nanotubes, which is applied in the manufacture of rayon, single-component synthetic polymer rayon, textiles and papermaking, etc. It can solve the problems of easy agglomeration, large specific surface area of nanoparticles, and affecting material properties and other issues, to achieve the effect of low cost, simple process operation and environmental friendliness
Inactive Publication Date: 2009-11-25
DONGHUA UNIV
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AI Technical Summary
Problems solved by technology
[0004] As we all know, nanoparticles have a large specific surface area, which is prone to agglomeration and affects the performance of materials.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] Add 5 g of polyvinyl alcohol and 0.01 g of carbon nanotubes into 500 ml of a nonionic surfactant aqueous solution to obtain a uniform polyvinyl alcohol spinning stock solution containing nanoparticles.
Embodiment 2
[0020] Add 200 g of polyvinyl alcohol and 0.002 g of carbon nanotubes into 500 ml of a nonionic surfactant aqueous solution to obtain a uniform polyvinyl alcohol spinning stock solution containing nanoparticles.
Embodiment 3
[0022] Add 50 g of polyvinyl alcohol and 5 g of carbon nanotubes into 500 ml of a nonionic surfactant aqueous solution to obtain a uniform polyvinyl alcohol spinning stock solution containing nanoparticles.
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Abstract
The invention relates to a method for preparing polyvinyl alcohol spin dope added with carbon nano-tube, which includes the steps of (1) dissolving non-ionic surface active agent into deionized water, preparing non-ionic surface active agent aqueous solution at concentration of 0.01-20 wt%, and then mixing with carbon nano-tube for obtaining uniformly dispersed and stable carbon nano-tube pre-dispersed liquid; (2) dissolving polyvinyl alcohol into the carbon nano-tube pre-dispersed liquid according to the step (1), for obtaining polyvinyl alcohol spin dope containing carbon nano-tubes with solid content of 1-60 wt%. The preparation method provided by the invention has the advantages of simple technological operation, low cost, friendly environment, safety production, thereby realizing industrial production, preparing and obtaining uniformly dispersed and stable polyvinyl alcohol spin dope containing carbon nano-tubes.
Description
technical field [0001] The invention belongs to the field of preparation of polyvinyl alcohol spinning stock solution, in particular to a preparation method of polyvinyl alcohol spinning stock solution added with carbon nanotubes. Background technique [0002] Polyvinyl alcohol (PVA) is a water-soluble polymer with a wide range of uses, and its performance is between plastics and rubber. The polyvinyl alcohol resin series products are white solids with three types of flocculent, granular and powdery shapes; they are non-toxic, tasteless and pollution-free, and can be dissolved in water at 80-90°C. Its aqueous solution has good adhesion and film-forming properties; it is resistant to most organic solvents such as oils, lubricants and hydrocarbons; it has chemical properties such as esterification, etherification and acetalization of long-chain polyols. Mainly used in textile industry warp yarn size, fabric finishing agent, vinylon fiber raw materials; due to PVA's unique str...
Claims
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Login to View More IPC IPC(8): D01F6/50D01F1/10
Inventor 俞昊朱美芳刘晶晶陈彦模
Owner DONGHUA UNIV
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