CN100342068C - Electrostatic spinning method of waste polystyrene foam - Google Patents

Electrostatic spinning method of waste polystyrene foam Download PDF

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Publication number
CN100342068C
CN100342068C CNB2005100148828A CN200510014882A CN100342068C CN 100342068 C CN100342068 C CN 100342068C CN B2005100148828 A CNB2005100148828 A CN B2005100148828A CN 200510014882 A CN200510014882 A CN 200510014882A CN 100342068 C CN100342068 C CN 100342068C
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China
Prior art keywords
polystyrene foam
waste polystyrene
electrospinning
waste
limonene
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CNB2005100148828A
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CN1743518A (en
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李梅
李志强
霍晓燕
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CHINSA COLLEGE OF CIVIL AVIATION
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CHINSA COLLEGE OF CIVIL AVIATION
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Abstract

本发明公开了一种废旧聚苯乙烯泡沫塑料的静电纺丝方法。其包括将经过粉碎的聚苯乙烯泡沫塑料和d-柠檬烯以91~53∶9~47的重量比在常温下进行混合而将聚苯乙烯泡沫塑料溶解成溶液;将上述溶液直接或加入特殊功能材料并利用静电纺丝装置制成直径为400nm~3.0μm的特种纤维。本发明提供的废旧聚苯乙烯泡沫塑料的静电纺丝方法是利用从天然植物中提取的d-柠檬烯作为溶剂来溶解废旧聚苯乙烯泡沫塑料,然后直接或加入特殊功能材料制成纳米纤维。由于d-柠檬烯是从柑桔及荆介穗等天然植物中提取而制成,因而来源丰富,并且具有天然降解性,因而对环境无害,所以不会对环境造成污染。The invention discloses an electrostatic spinning method of waste polystyrene foam plastics. It includes mixing the pulverized polystyrene foam plastic and d-limonene at a weight ratio of 91-53:9-47 at room temperature to dissolve the polystyrene foam plastic into a solution; directly or adding the above solution materials and use an electrospinning device to make special fibers with a diameter of 400nm to 3.0μm. The electrospinning method of waste polystyrene foam provided by the invention is to use d-limonene extracted from natural plants as a solvent to dissolve waste polystyrene foam, and then directly or add special functional materials to make nanofibers. Since d-limonene is extracted from natural plants such as citrus and jingsuke, it has abundant sources and is naturally degradable, so it is harmless to the environment, so it will not pollute the environment.

Description

The electrospinning process of waste old polystyrene foamed plastic
Technical field
The present invention relates to a kind of electrospinning process of waste and old polystyrol foamed plastic, particularly relate to a kind of natural botanical extraction liquid that utilizes and the waste and old polystyrol foamed plastic is dissolved into solution, add the specific function material then and utilize electrostatic spinning technique to spin electrospinning process with waste old polystyrene foamed plastic of nanometer stage material as solvent.
Background technology
Polystyrene foam plastics is applied in the every field as a kind of packaging material usually because of having characteristics such as big, the in light weight and proportion of volume is little, but the shortcoming of this material is not decompose, thus with the back if it is discarded contaminated environment seriously.At present the recovery method major part of waste old polystyrene foamed plastic all is to utilize organic solvent its dissolving to be prepared the material of other purposes such as coating, because the organic solvent that this recovery method uses can bring secondary pollution to environment, so be unfavorable for promoting.Therefore seek that a kind of can not cause secondary pollution and waste old polystyrene foamed plastic recovery method easy and simple to handle be the direction that the research worker makes great efforts always.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of with natural botanical extraction liquid as solvent, thereby can not cause secondary pollution, and the electrospinning process of waste old polystyrene foamed plastic easy and simple to handle to environment.
In order to achieve the above object, the electrospinning process of waste old polystyrene foamed plastic provided by the invention comprises:
(1) will be through the polystyrene foam plastics pulverized and d-citrene with 91~53: 9~47 weight ratio be mixed at normal temperatures and polystyrene foam plastics is dissolved into the clear solution of thickness;
(2) above-mentioned soln using electrostatic spinning apparatus is made the styroflex that diameter is 400nm~3.0 μ m, or added the specific function material, and utilize electrostatic spinning apparatus to make the special fibre of diameter for 400nm~3.0 μ m at above-mentioned solution.
Described specific function material comprises radar wave absorbing agent, carbon black, SnO 2, TiO 2Or porous silicon.
The dissolution time of described polystyrene foam plastics is 1~20 minute.
Described d-citrene is 100% concentrate.
Described electrostatic spinning voltage is 15KV~24KV, and receiving range is 4cm~15cm.
The electrospinning process of waste old polystyrene foamed plastic provided by the invention is to utilize the d-citrene concentrate extract from natural plants to dissolve waste old polystyrene foamed plastic as solvent, adds the specific function material then in this solution and makes the fiber that diameter is 400nm~3.0 μ m.Owing to the d-citrene is to extract to make from plants such as citrus and sour jujube Jie fringe, thereby its source is abundant, and this solvent has Natural Degradation, thereby to environment and body harmless, so can not cause secondary pollution to environment.In addition, the present invention also has and can keep original mechanical strength of polystyrene and advantage such as easy and simple to handle.
The specific embodiment
Be elaborated below in conjunction with the electrospinning process of specific embodiment to waste old polystyrene foamed plastic provided by the invention.
Embodiment 1
To mix at normal temperatures with 85: 15 weight ratio and polystyrene foam plastics will be dissolved into the clear solution of thickness through the polystyrene foam plastics pulverized and d-citrene, dissolution time is 2 minutes, then above-mentioned solution is joined in the electrostatic spinning apparatus, and be 20KV at voltage, and receiving range is to make the polystyrene non-woven fibre that diameter is 400nm under the condition of 5cm, and this fiber can be used as the raw material of filter membranes such as medical science, biotechnology and industrial wastewater.
Embodiment 2
To mix at normal temperatures with 85: 15 weight ratio and polystyrene foam plastics will be dissolved into the clear solution of thickness through the polystyrene foam plastics pulverized and d-citrene, dissolution time is 2 minutes, in above-mentioned solution, add radar wave absorbing agent then, and be 20KV at voltage, and receiving range is to utilize electrostatic spinning apparatus to make diameter under the condition of 5cm to absorb nanofiber for the radar wave of 500nm.The electrical conductivity of this fiber is 10 -3~10 -1S/cm, its millimeter wave to 26.5~40GHz has absorption preferably, and mechanism is similar to the electrical loss type.
Embodiment 3
To mix at normal temperatures with 75: 25 weight ratio and polystyrene foam plastics is dissolved into the clear solution of thickness through the polystyrene foam plastics pulverized and d-citrene, dissolution time be 6 minutes, adds carbon black, SnO then in above-mentioned solution 2Or TiO 2In any conductive material, and be 20KV, and receiving range is to utilize electrostatic spinning apparatus to make the conductive fiber of diameter about for 600nm under the condition of 5cm at voltage.This conductive fiber can be used as semiconductor devices, electromagnetic wave shielding and antistatic material.
Embodiment 4
To mix at normal temperatures with 60: 40 weight ratio and polystyrene foam plastics will be dissolved into the clear solution of thickness through the polystyrene foam plastics pulverized and d-citrene, dissolution time is 20 minutes, in above-mentioned solution, add porous silica material then, and be 20KV at voltage, and receiving range is to utilize electrostatic spinning apparatus to make the non-electric light source nanofiber of diameter for 800nm under the condition of 5cm.This light source nanofiber can be used as sensing element, sensor and illuminating material.
The solvent that the present invention uses is the d-citrene concentrate of 100% concentration extracted from natural plants, and this solution can be used as food additives and uses, as the spices of orange flavor carbonated drink or chewing gum etc., and also can replace organic solvent etc.Detect the small white mouse LD of this solvent through the diseases prevention and control center 50>5.0g/kgBW belongs to actual nontoxic, so it belongs to the environment-friendly type solvent, thereby to human body and environmentally friendly.In addition, because the citrene molecular structure in this solvent is similar to the polystyrene molecular structure, and solubility parameter is close, thereby it at room temperature just can be dissolved into the polystyrene foam plastics after pulverizing the clear solution of thickness, and dissolution velocity is identical with organic solvent toluene and benzene, and prove that by technology for detection this solvent does not change the molecular weight and the molecular weight distribution of polystyrene, promptly can keep the original mechanical strength of polystyrene.In addition, utilize this natural solvent to come replace organic solvent not only can solve " white pollution " problem that polystyrene foam plastics itself forms, but also can solve the secondary pollution problem that causes with organic solvent processing polystyrene foam plastics, and be difficult to reach for present traditional solution electrostatic spinning technique without organic solvent processing polystyrene foam plastics.The nanofiber made from electrospinning process provided by the invention has bigger specific area and surface-to-volume ratio, this fiber has the absorption affinity of very strong bearing certain pressure and good filterability, barrier, cohesiveness and heat insulating ability, therefore can be applicable to the aspects such as filtration of submicron particle, its filter effect can improve greatly than the conventional filtration material efficiency.

Claims (5)

1、一种废旧聚苯乙烯泡沫塑料的静电纺丝方法,其特征在于:所述的废旧聚苯乙烯泡沫塑料的静电纺丝方法包括:1. An electrospinning method of waste polystyrene foam, characterized in that: the electrospinning method of waste polystyrene foam comprises: (1)将经过粉碎的聚苯乙烯泡沫塑料和d-柠檬烯以91~53∶9~47的重量比在常温下进行混合而将聚苯乙烯泡沫塑料溶解成粘稠的透明溶液;(1) Mixing the pulverized polystyrene foam and d-limonene at a weight ratio of 91 to 53:9 to 47 at room temperature to dissolve the polystyrene foam into a viscous transparent solution; (2)将上述溶液利用静电纺丝装置制成直径为400nm~3.0μm的聚苯乙烯纤维,或在上述溶液加入特殊功能材料,并利用静电纺丝装置制成直径为400nm~3.0μm的特种纤维。(2) Use the above solution to make polystyrene fibers with a diameter of 400nm~3.0μm by using an electrospinning device, or add special functional materials to the above solution, and use an electrospinning device to make a special fiber with a diameter of 400nm~3.0μm fiber. 2、根据权利要求1所述的废旧聚苯乙烯泡沫塑料的静电纺丝方法,其特征在于:所述的特殊功能材料包括雷达波吸收剂、碳黑、SnO2、TiO2或多孔硅。2. The electrospinning method of waste polystyrene foam according to claim 1, characterized in that: said special functional materials include radar wave absorbers, carbon black, SnO 2 , TiO 2 or porous silicon. 3、根据权利要求1所述的废旧聚苯乙烯泡沫塑料的静电纺丝方法,其特征在于:所述的聚苯乙烯泡沫塑料的溶解时间为1~20分钟。3. The electrospinning method of waste polystyrene foam according to claim 1, characterized in that the dissolving time of the polystyrene foam is 1-20 minutes. 4、根据权利要求1所述的废旧聚苯乙烯泡沫塑料的静电纺丝方法,其特征在于:所述的d-柠檬烯为100%浓缩液。4. The electrospinning method of waste polystyrene foam according to claim 1, characterized in that: said d-limonene is a 100% concentrated solution. 5、根据权利要求1所述的废旧聚苯乙烯泡沫塑料的静电纺丝方法,其特征在于:所述的静电纺丝电压为15KV~24KV,接收距离为4cm~15cm。5. The electrospinning method of waste polystyrene foam according to claim 1, characterized in that: the electrospinning voltage is 15KV-24KV, and the receiving distance is 4cm-15cm.
CNB2005100148828A 2005-08-29 2005-08-29 Electrostatic spinning method of waste polystyrene foam Expired - Fee Related CN100342068C (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2381022B1 (en) * 2009-01-14 2013-11-20 Japan Vilene Company, Ltd. Inorganic fiber structure and process for producing same
CN102926021A (en) * 2012-11-07 2013-02-13 北京化工大学 Method using emulsion electricity texture to prepare beaded filaments
CN107428987A (en) * 2014-11-26 2017-12-01 印度海得拉巴理工学院 There is the method for the fiber of the hydrophobic oleophilic oil arranged of the sub-micron of controllable geometry using citrus bark extract as solvent by waste polystyrene manufacture
CN106435805B (en) * 2016-10-05 2019-06-07 桂林理工大学 A kind of preparation method of polystyrene electrostatic spinning solution
CN111270420A (en) * 2020-03-25 2020-06-12 合肥巧织纺织科技有限公司 Preparation method of high-strength non-woven fabric
CN113403852A (en) * 2021-05-19 2021-09-17 兰义忠 Ultrathin waterproof fabric and preparation method thereof
CN116061341A (en) * 2021-10-29 2023-05-05 中国石油化工股份有限公司 Method for separating waste plastics

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223543A (en) * 1992-10-19 1993-06-29 Claudia Iovino Reduction in polystyrene with activated agent
JPH06220724A (en) * 1993-01-26 1994-08-09 Nagoya Yuka Kk Treatment method for polystyrene foam waste

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223543A (en) * 1992-10-19 1993-06-29 Claudia Iovino Reduction in polystyrene with activated agent
JPH06220724A (en) * 1993-01-26 1994-08-09 Nagoya Yuka Kk Treatment method for polystyrene foam waste

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