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Preparation method of high-performance PP fiber

A high-performance, fiber-based technology, applied in the field of materials, can solve the problems of poor compatibility, difficult to prepare high-performance, and difficult to evenly disperse graphene oxide.

Inactive Publication Date: 2018-05-18
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the single-layer graphene oxide-modified polypropylene, the electrical and mechanical properties of the fiber obtained by spinning the multi-layer graphene oxide-modified polypropylene used in this method have a large gap. Without hydrophilic groups, graphene oxide is difficult to disperse evenly in the matrix, and it is easy to agglomerate in the matrix, making it difficult to prepare high-performance graphene-modified polypropylene
In addition, in order to obtain high-conductivity and high-thermal-conductivity polypropylene fibers, more and more researchers will add conductive inorganic fillers, but often due to poor compatibility between inorganic fillers and polypropylene, the performance of the prepared products is not satisfactory

Method used

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  • Preparation method of high-performance PP fiber
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Examples

Experimental program
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Effect test

Embodiment 1

[0015] (1) Prepare piranha solution, prepare piranha solution with 98wt% concentrated sulfuric acid and 30wt% hydrogen peroxide at a volume ratio of 3:1, add graphene oxide raw material provided by Hangzhou Gaoxene Technology Co., Ltd., stir at room temperature for half an hour, filter , rinsed with pure water and dried, added 1g of graphene oxide treated with piranha solution into 50.0mL of isopropanol, added dropwise 0.01g of silane coupling agent KH570, stirred at 40°C for 4h, and spray-dried to obtain modified oxide Graphene raw material.

[0016] (2) Weigh 100g of propylene monomer and 0.5g of modified graphene oxide, mix them evenly, and carry out prepolymerization under the catalysis of polypropylene catalyst under normal temperature conditions, then carry out polymerization at about 70°C, polymerize and then pelletize to prepare Raw material for spinning. Usually, the polypropylene catalyst includes a cocatalyst, an electron donor and a Z-N catalyst. The prepolymeriza...

Embodiment 2

[0027] (1) Prepare piranha solution, prepare piranha solution with 98% concentrated sulfuric acid and 30% hydrogen peroxide at a volume ratio of 3:1, add graphene oxide raw material, stir for half an hour at room temperature, rinse and filter with pure water and dry, and Add 3 g of graphene oxide treated with piranha solution into 150.0 mL of isopropanol, add dropwise 0.02 g of silane coupling agent KH570, stir at 40°C for 4 hours, wash with water, filter, and spray dry to obtain the raw material of modified graphene oxide.

[0028] (2) Weigh 100g of propylene monomer, weigh 0.1g, 0.25g, 0.5g, 0.75g, 1g of modified graphene oxide respectively, mix evenly, and carry out prepolymerization under the catalysis of polypropylene catalyst under normal temperature conditions , and then polymerized at about 70°C, polymerized and then pelletized to prepare spinning raw materials. Usually, the polypropylene catalyst includes a cocatalyst, an electron donor and a Z-N catalyst. The prepoly...

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Abstract

The invention discloses a preparation method of a high-performance PP fiber. According to the method, hydroxylation and carboxylation are carried out on graphene oxide, oxygen-containing functional groups on the surface of the graphene oxide are increased, as many coupling agents KH570 as possible are chelated on the periphery of the graphene oxide, alkylation of graphene oxide is carried out, a special tangle with polypropylene is formed, melt spinning is carried out under the temperature of 250 DEG C-320 DEG C, and the high-performance PP fiber is obtained.

Description

technical field [0001] The invention relates to the field of materials, in particular to a preparation method of high-performance PP fibers. Background technique [0002] Polypropylene fiber has the advantages of stable chemical properties, low density, low water absorption, rich raw materials and easy processing. Since the industrialization of polypropylene fiber in 1957, the demand for polypropylene has been increasing. The excellent performance of polypropylene fiber makes it widely used Used in clothing fabrics, non-woven fabrics, etc. However, since polypropylene fiber belongs to chemical fiber and belongs to hydrophobic fiber, the molecule lacks hydrophilic groups, which makes it easy to pilling and generate static electricity, which affects the production of fibers, and makes people feel uncomfortable when woven into fabrics. And due to the effect of static electricity, it is easy to absorb dust, etc. In addition, some special fields, such as gas stations, gas statio...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F1/10D01F1/07C08F110/06C08F2/44C08K9/06C08K3/04
CPCC08F110/06C08K3/04C08K9/06D01F1/07D01F1/103D01F6/46C08F2/44
Inventor 高超汪波韩燚
Owner HANGZHOU GAOXI TECH CO LTD
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