Anticoagulant fiber membrane and preparation method and application thereof

A fiber membrane and anti-coagulation technology, which is applied in the fields of fiber chemical characteristics, rayon manufacturing, textiles and papermaking, etc., can solve the problems of reducing the stability of membrane materials and the stability of modifiers, and achieve anti-coagulation effects Good, good hydrophilic performance effect

Inactive Publication Date: 2018-11-27
GUIYANG UNIV
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  • Claims
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Problems solved by technology

But the modified membrane material obtained by blending in the prior art, after using for a period of time, the stability of the modifier becomes worse, causing the modifier to separate out from the modified membrane material, such as the prior art (Polymers for Advanced Technologies, 2014 , 25,851) discloses the use of polyvi

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  • Anticoagulant fiber membrane and preparation method and application thereof
  • Anticoagulant fiber membrane and preparation method and application thereof
  • Anticoagulant fiber membrane and preparation method and application thereof

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[0030] The present invention has no special requirements on the source of the metal organic framework material with carboxyl groups, and it adopts products well-known to those skilled in the art or is prepared by itself. When the metal organic framework material with carboxyl group is obtained by self-preparation, the preparation method of the metal organic framework material with carboxyl group preferably includes the following steps:

[0031] (a) Mixing monosodium 5-thioisophthalate, copper nitrate, N,N-dimethylformamide and water to obtain a mixed material liquid; then the mixed material liquid is allowed to stand still to precipitate a precipitate;

[0032] (b) Mixing the precipitate obtained in the step (a) with the ethanol aqueous solution, standing still to precipitate crystals, and obtaining a metal organic framework material with carboxyl groups.

[0033] In the present invention, it is preferable to mix 5-thioisophthalic acid monosodium, copper nitrate, N,N-dimethylformamid...

Example Embodiment

[0077] Example 1

[0078] A metal organic frame material Cu 2 (μ 2 -OH 2 ) 2 (HSIP) 2 (H 2 O) 6 The preparation method of the hybrid polyvinylidene fluoride membrane anticoagulant fiber membrane, the method steps are as follows:

[0079] (1) Dissolve monosodium 5-thioisophthalate (0.932 mmol) in 3 mL of deionized water and N,N-dimethylformamide (volume ratio 1:1) and stir at 70°C for 10 minutes. Add Cu(NO 3 ) 2 ·3H 2 0.5 mL of O (0.340 mmol) aqueous solution was stirred for 30 minutes. Filtration, leave the mother liquor to stand for 4 weeks, and precipitation appears. Dissolve the precipitate in a mixed solution of 2 mL of deionized water and ethanol (volume ratio 1:1) to obtain a blue-green solution at room temperature. Let it stand for 2 weeks to obtain blue Color crystals, washed with deionized water, dried and ground to obtain metal organic framework materials with carboxyl groups;

[0080] (2) Add 0.1 parts by mass of metal organic frame material with carboxyl group and 84.9 ...

Example Embodiment

[0083] Example 2

[0084] A metal organic frame material Cu 2 (μ 2 -OH 2 ) 2 (HSIP) 2 (H 2 O) 6 The preparation method of the hybrid polyvinylidene fluoride membrane anticoagulant fiber membrane, the method steps are as follows:

[0085] (1) Dissolve monosodium 5-thioisophthalate (0.932 mmol) in 3 mL of deionized water and N,N-dimethylformamide (volume ratio 1:1) and stir at 70°C for 10 minutes. Add Cu(NO 3 ) 2 ·3H 2 0.5 mL of O (0.340 mmol) aqueous solution was stirred for 30 minutes. Filtration, leave the mother liquor to stand for 4 weeks, and precipitation appears. Dissolve the precipitate in a mixed solution of 2 mL of deionized water and ethanol (volume ratio 1:1) to obtain a blue-green solution at room temperature. Let it stand for 2 weeks to obtain blue Color crystals, washed with deionized water, dried and ground to obtain metal organic framework materials with carboxyl groups;

[0086] (2) Add 4 parts by mass of metal organic frame material with carboxyl group and 74 part...

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Abstract

The invention provides an anticoagulant fiber membrane and a preparation method and application thereof. The anticoagulant fiber membrane comprises a polyvinylidene fluoride membrane and a metal organic framework material with a carboxyl group, and the metal organic framework material with the carboxyl group is uniformly dispersed in the polyvinylidene fluoride membrane. The metal organic framework material in the anticoagulant fiber membrane can stably exist in a polyvinylidene fluoride membrane matrix. In addition, the anticoagulant fiber membrane has a good anticoagulant effect, and the result of the embodiment shows that the prothrombin time of the activated part of the anticoagulant fiber membrane is 42-60 seconds, and the anticoagulant effect is better. The anticoagulant fiber membrane has better hydrophilic properties, and the result of the embodiment shows that the contact angle between the anticoagulant fiber membrane and water is 50-80 degrees.

Description

technical field [0001] The invention relates to the field of functional polymer materials, in particular to an anticoagulant fiber membrane and its preparation method and application. Background technique [0002] Polyvinylidene fluoride membrane (PVDF for short) is an engineering plastic. Because of its good physical and chemical stability, it is often used as a functional polymer material with excellent performance to prepare flat membranes or hollow fiber membranes, which are used in blood purification and other fields. However, the polyvinylidene fluoride membrane does not have anticoagulant properties, and it is necessary to modify the polyvinylidene fluoride membrane to improve the application of the membrane in blood purification. [0003] At present, the commonly used modification method is the blending method. For example, Rahimpour et al. synthesized polyamino-imide by polycondensation method to blend the modified membrane material, so that the modified membrane ha...

Claims

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Application Information

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IPC IPC(8): D04H3/007D01F6/48D01F1/10
CPCD01F1/10D01F6/48D04H3/007D10B2321/042D10B2509/00
Inventor 聂胜强覃慧王壹罗军严伟成刚许晓璐张春梅曾嘉洲
Owner GUIYANG UNIV
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