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Preparing method of super oil absorbing polypropylene spray-fusing non-woven fabric

A polypropylene melt-blown, non-woven technology, applied in the manufacture of single-component polyolefin rayon, non-woven fabric, rayon, etc., can solve the problem of easy cracking and plugging, rising production costs, no industrial production, etc. problem, to achieve the effect of high porosity and hydrophobicity, excellent sound insulation performance, and improved performance

Inactive Publication Date: 2018-07-31
浙江省轻工业品质量检验研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melt-blown method is used to prepare nano-fibers. At present, the domestic melt-blown equipment and polypropylene raw materials cannot meet the production conditions of nano-fibers, and the imported spinneret is extremely expensive, and it is easy to crack and plug. Increasing the amount of hot air greatly increases the production cost, and theoretical studies have also found that the lower limit of the diameter of polypropylene fibers prepared by the meltblown method is about 350nm
The production of polypropylene non-woven fabrics by electrospinning is low, and there is no suitable solvent at room temperature. At present, there is no possibility of industrial production

Method used

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  • Preparing method of super oil absorbing polypropylene spray-fusing non-woven fabric
  • Preparing method of super oil absorbing polypropylene spray-fusing non-woven fabric
  • Preparing method of super oil absorbing polypropylene spray-fusing non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 Sodium chloride pore-forming agent-super oil-absorbing polypropylene melt-blown non-woven fabric

[0025] The raw material of polypropylene is Metocene X50128, a special material for polypropylene melt-blowing, the pore-forming agent is sodium chloride, a class A small molecule inorganic salt, the cleaning agent is water, and the mass percentage concentration of the pore-forming agent is 25%. Firstly, polypropylene and sodium chloride are blended uniformly with a high-speed mixer at room temperature. Then meltblown production is carried out, the process parameters are slit nozzle, spinneret diameter 0.42mm, air groove angle 30°, slit width 0.62mm, die opening temperature 260°C, hot air temperature 280°C, gas pressure 0.1Mpa, The receiving distance was 15 cm, and the spinning speed was 100 kg / h to obtain a nascent non-woven fabric. The nascent non-woven fabric is washed with detergent water to remove sodium chloride to form pores, and after drying, the porous ...

Embodiment 2

[0026] Example 2 Dioctyl phthalate pore-forming agent-super oil-absorbing polypropylene melt-blown non-woven fabric

[0027] The raw material of polypropylene is polypropylene S1003 produced by Yangzhou Petrochemical Co., Ltd., the pore-forming agent is small molecule dioctyl phthalate of Class A organic matter, the cleaning agent is ethanol, and the mass percent concentration of the pore-forming agent is 75%. Firstly, polypropylene and dioctyl phthalate are blended uniformly with a high-speed mixer at room temperature. Then meltblown production is carried out. The process parameters are slit nozzle, spinneret diameter 0.60mm, air groove angle 40°, slit width 0.65mm, die opening temperature 170°C, hot air temperature 200°C, gas pressure 0.25Mpa, The receiving distance is 20cm, and the spinning speed is 40kg / h to obtain a nascent nonwoven fabric. The nascent non-woven fabric is cleaned with cleaning agent ethanol to remove the pores formed by dioctyl phthalate, and after dryin...

Embodiment 3

[0028]Example 3 Cellulose acetate pore-forming agent-super oil-absorbing polypropylene melt-blown non-woven fabric

[0029] The raw material of polypropylene is Escorene 3546G, a special material for polypropylene melt-blowing, the pore-forming agent is B-type polymer cellulose acetate, the cleaning agent is acetone, and the mass percentage concentration of the pore-forming agent is 35%. Firstly, polypropylene and cellulose acetate are blended uniformly with a stirring mixer at room temperature. Then meltblown production is carried out, the process parameters are slit nozzle, spinneret diameter 0.40mm, air groove angle 45°, slit width 0.60mm, die opening temperature 320°C, hot air temperature 340°C, gas pressure 0.4Mpa, The receiving distance was 18cm, and the spinning speed was 80kg / h to obtain a nascent nonwoven fabric. The nascent non-woven fabric is cleaned with cleaning agent acetone to remove the pores of cellulose acetate, and after drying, the porous super oil-absorbi...

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Abstract

The invention belongs to the field of textiles in the industry of filtration and separation, and aims at providing a preparing method of super oil absorbing polypropylene spray-fusing non-woven fabric. By means of the non-woven fabric prepared according to the method, a lot of porous structures are arranged in spray-fusing polypropylene fiber, thus the roughness is improved, the hydrophobic natureis superior, and the oil absorbing performance is obviously improved. According to the technical scheme, the preparing method of the super oil absorbing polypropylene spray-fusing non-woven fabric sequentially comprises the following steps of 1, uniformly mixing polypropylene with pore-forming agent to obtain a mixture in which the mass concentration of the pore-forming agent accounts for 20-80%;2, producing the mixture through spray-fusing equipment to obtain initial non-woven fabric formed by the spray-fusing polypropylene fiber; 3, using cleaning agent to remove the pore-forming agent inthe initial non-woven fabric obtained in step 2, and thus making the spray-fusing polypropylene fiber form the porous structures, so that after drying, the super oil absorbing polypropylene spray-fusing non-woven fabric is obtained; 4, recycling mixed waste liquid of the cleaning agent and the pore-forming agent.

Description

technical field [0001] The invention belongs to the field of industrial textiles for filtration and separation, and specifically relates to a method for preparing a super oil-absorbing polypropylene melt-blown non-woven fabric. The prepared polypropylene melt-blown non-woven fabric can absorb up to 150 times its own weight of oil. Background technique [0002] With the implementation of my country's blue ocean economic strategy, the oil industry, offshore drilling, and oil transportation have developed rapidly. into seawater, causing irreparable damage to marine ecosystems. Europe, America, Japan and other countries all stipulate that ships and seaports must be equipped with a certain amount of oil-absorbing materials to prevent oil spill pollution. Some seaports in my country have been equipped with products such as oil-absorbing ropes, oil-absorbing pads, oil-absorbing pillows, and oil-absorbing felts. The country has also included oil-absorbing products in the key develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/16D04H3/007D04H3/018D01F6/46D01F8/06D01F8/02D01F1/10D01F11/06
CPCD01F1/10D01F6/46D01F8/02D01F8/06D01F11/06D04H3/007D04H3/018D04H3/16
Inventor 叶翔宇卢林金环周维真王倩李晶
Owner 浙江省轻工业品质量检验研究院
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