CN104894678A - Method for producing high-strength and high-modulus polyphenylene sulfide short fibers - Google Patents
Method for producing high-strength and high-modulus polyphenylene sulfide short fibers Download PDFInfo
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- CN104894678A CN104894678A CN201510229672.4A CN201510229672A CN104894678A CN 104894678 A CN104894678 A CN 104894678A CN 201510229672 A CN201510229672 A CN 201510229672A CN 104894678 A CN104894678 A CN 104894678A
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Abstract
The invention discloses a method for producing high-strength and high-modulus polyphenylene sulfide short fibers, which comprises the steps of polyphenylene sulfide mixture -> high-speed mixing -> double screw extruder -> drying -> melt spinning -> clustering -> stretching -> curling -> thermoforming -> cutting off -> packing. The polyphenylene sulfide mixture is composed of 96-98% of polyphenylene sulfide, 1-2% of grapheme, 0.5-1% of coupling agent and 0.5-1% of kaolin. During the drying step, the drying temperature is 160-200 DEG C, and the drying time is 24-36 hours, wherein nitrogen is adopted as a drying medium. During the melt spinning step, the spinning temperature is 310-330 DEG C, and the spinning speed is 800-1200 m/min. During the stretching step, the stretching ratio is 3-6, and the stretching temperature is 90-120 DEG C. During the thermoforming process, the thermoforming temperature is 85-220 DEG C. The method is simple in technique and low in cost. Fibers obtained through the above method are high in breaking strength and modulus.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of production method of high-strength and high-modulus polyphony thioether short fiber.
Background technology
Polyphenylene sulfide fibre is a kind of conventional tencel, not only fracture strength is low for the polyphenylene sulfide fibre produced at present, and the modulus such as elastic modelling quantity, modulus of shearing is lower, be not suitable for the industries such as building, military affairs, aviation, narrow application range, thus needs a kind of polyphenylene sulfide fibre with high fracture strength and high-modulus of invention badly.
Summary of the invention
The object of this invention is to provide and a kind ofly there is high fracture strength and the production method of a kind of high-strength and high-modulus polyphony thioether short fiber of high-modulus.
For achieving the above object, present invention employs following technical scheme: the production method of described a kind of high-strength and high-modulus polyphony thioether short fiber, comprises the following steps:
Polyphenylene sulfide resin lipoprotein mixture → mixed at high speed → double screw extruder → drying → melt spinning → boundling → stretching → curling → HEAT SETTING → cut-out → packing;
Described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 96 ~ 98% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1 ~ 2% of polyphenylene sulfide mixture total weight amount, coupling agent accounts for 0.5 ~ 1% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.5 ~ 1% of polyphenylene sulfide mixture total weight amount;
The process conditions of described drying are: baking temperature is 160 ~ 200 DEG C; Drying time is 24 ~ 36h, and drying medium is nitrogen;
The process conditions of described melt spinning are: spinning temperature is 310 ~ 330 DEG C, and spinning speed is 800 ~ 1200m/min;
The process conditions of described stretching are: draw ratio is 3 ~ 6 times, and draft temperature is 90 ~ 120 DEG C;
The process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, and heat setting temperature is 85 ~ 220 DEG C.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: described coupling agent is silane coupler.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: described Graphene is single layer structure, Young's modulus is 1300 ~ 1400Gpa, and fracture strength is 130 ~ 150Gpa, thermal conductivity factor 5500W/ (mk).
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 97% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1.5% of polyphenylene sulfide mixture total weight amount, coupling agent accounts for 0.75% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.75% of polyphenylene sulfide mixture total weight amount.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: the process conditions of described drying are: baking temperature is 180 DEG C; Drying time is 30h.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: the process conditions of described melt spinning are: spinning temperature is 320 DEG C, spinning speed is 1000m/min.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: the process conditions of described stretching are: draw ratio is 5 times, draft temperature is 110 DEG C.
Further, the production method of aforesaid a kind of high-strength and high-modulus polyphony thioether short fiber, wherein: the process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, heat setting temperature is 150 DEG C.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: the production method technique of high-strength and high-modulus polyphony thioether short fiber is simple, with low cost, low for equipment requirements, be suitable for suitability for industrialized production, and the fracture strength of the high-strength and high-modulus polyphony thioether short fiber produced is high, fracture strength can reach 4.9 ~ 5.2cN/dtex, elastic modelling quantity and modulus of shearing high, initial modulus can reach 3.0 ~ 4.5 cN/dtex, heat-proof corrosion resistant erosion performance is good and not easily aging, can not only as building structure reinforcing material, optical cable reinforcement and medical material, and war industry and aerospace field can be applied to, applied widely.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment one
A production method for high-strength and high-modulus polyphony thioether short fiber, comprises the following steps:
Polyphenylene sulfide resin lipoprotein mixture → mixed at high speed → double screw extruder → drying → melt spinning → boundling → stretching → curling → HEAT SETTING → cut-out → packing;
Described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 96% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 2% of polyphenylene sulfide mixture total weight amount, silane coupler accounts for 1% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 1% of polyphenylene sulfide mixture total weight amount;
The process conditions of described drying are: baking temperature is 160 DEG C; Drying time is 24h, and drying medium is nitrogen;
The process conditions of described melt spinning are: spinning temperature is 310 DEG C, and spinning speed is 800m/min;
The process conditions of described stretching are: draw ratio is 3 times, and draft temperature is 90 DEG C;
The process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, and heat setting temperature is 85 DEG C;
Described Graphene is single layer structure, and Young's modulus is 1300 ~ 1400Gpa, and fracture strength is 130 ~ 150Gpa, thermal conductivity factor 5500W/ (mk).
Embodiment two
A production method for high-strength and high-modulus polyphony thioether short fiber, comprises the following steps:
Polyphenylene sulfide resin lipoprotein mixture → mixed at high speed → double screw extruder → drying → melt spinning → boundling → stretching → curling → HEAT SETTING → cut-out → packing;
Described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 97% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1.5% of polyphenylene sulfide mixture total weight amount, silane coupler accounts for 0.75% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.75% of polyphenylene sulfide mixture total weight amount;
The process conditions of described drying are: baking temperature is 180 DEG C; Drying time is 30h, and drying medium is nitrogen;
The process conditions of described melt spinning are: spinning temperature is 320 DEG C, and spinning speed is 1000m/min;
The process conditions of described stretching are: draw ratio is 5 times, and draft temperature is 110 DEG C;
The process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, and heat setting temperature is 150 DEG C;
Described Graphene is single layer structure, and Young's modulus is 1300 ~ 1400Gpa, and fracture strength is 130 ~ 150Gpa, thermal conductivity factor 5500W/ (mk).
Embodiment three
A production method for high-strength and high-modulus polyphony thioether short fiber, comprises the following steps:
Polyphenylene sulfide resin lipoprotein mixture → mixed at high speed → double screw extruder → drying → melt spinning → boundling → stretching → curling → HEAT SETTING → cut-out → packing;
Described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 98% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1% of polyphenylene sulfide mixture total weight amount, silane coupler accounts for 0.5% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.5% of polyphenylene sulfide mixture total weight amount;
The process conditions of described drying are: baking temperature is 200 DEG C; Drying time is 36h, and drying medium is nitrogen;
The process conditions of described melt spinning are: spinning temperature is 330 DEG C, and spinning speed is 1200m/min;
The process conditions of described stretching are: draw ratio is 6 times, and draft temperature is 120 DEG C;
The process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, and heat setting temperature is 220 DEG C;
Described Graphene is single layer structure, and Young's modulus is 1300 ~ 1400Gpa, and fracture strength is 130 ~ 150Gpa, thermal conductivity factor 5500W/ (mk).
Advantage of the present invention is: the production method technique of high-strength and high-modulus polyphony thioether short fiber is simple, with low cost, low for equipment requirements, be suitable for suitability for industrialized production, and the fracture strength of the high-strength and high-modulus polyphony thioether short fiber produced is high, fracture strength can reach 4.9 ~ 5.2cN/dtex, elastic modelling quantity and modulus of shearing high, initial modulus can reach 3.0 ~ 4.5 cN/dtex, heat-proof corrosion resistant erosion performance is good and not easily aging, can not only as building structure reinforcing material, optical cable reinforcement and medical material, and war industry and aerospace field can be applied to, applied widely.
Claims (8)
1. a production method for high-strength and high-modulus polyphony thioether short fiber, is characterized in that: comprise the following steps:
Polyphenylene sulfide resin lipoprotein mixture → mixed at high speed → double screw extruder → drying → melt spinning → boundling → stretching → curling → HEAT SETTING → cut-out → packing;
Described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 96 ~ 98% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1 ~ 2% of polyphenylene sulfide mixture total weight amount, coupling agent accounts for 0.5 ~ 1% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.5 ~ 1% of polyphenylene sulfide mixture total weight amount;
The process conditions of described drying are: baking temperature is 160 ~ 200 DEG C; Drying time is 24 ~ 36h, and drying medium is nitrogen;
The process conditions of described melt spinning are: spinning temperature is 310 ~ 330 DEG C, and spinning speed is 800 ~ 1200m/min;
The process conditions of described stretching are: draw ratio is 3 ~ 6 times, and draft temperature is 90 ~ 120 DEG C;
The process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, and heat setting temperature is 85 ~ 220 DEG C.
2. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, is characterized in that: described coupling agent is silane coupler.
3. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, it is characterized in that: described Graphene is single layer structure, Young's modulus is 1300 ~ 1400Gpa, and fracture strength is 130 ~ 150Gpa, thermal conductivity factor 5500W/ (mk).
4. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, it is characterized in that: described polyphenylene sulfide resin lipoprotein mixture is made up of polyphenylene sulfide, Graphene, coupling agent and kaolin, wherein polyphenylene sulfide accounts for 97% of polyphenylene sulfide mixture total weight amount, Graphene accounts for 1.5% of polyphenylene sulfide mixture total weight amount, coupling agent accounts for 0.75% of polyphenylene sulfide mixture total weight amount, and kaolin accounts for 0.75% of polyphenylene sulfide mixture total weight amount.
5. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, is characterized in that: the process conditions of described drying are: baking temperature is 180 DEG C; Drying time is 30h.
6. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, it is characterized in that: the process conditions of described melt spinning are: spinning temperature is 320 DEG C, spinning speed is 1000m/min.
7. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, it is characterized in that: the process conditions of described stretching are: draw ratio is 5 times, draft temperature is 110 DEG C.
8. the production method of a kind of high-strength and high-modulus polyphony thioether short fiber according to claim 1, it is characterized in that: the process conditions of described HEAT SETTING are: nervous HEAT SETTING and relaxation heat setting combine, heat setting temperature is 150 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304293A (en) * | 2016-04-21 | 2017-10-31 | 东丽先端材料研究开发（中国）有限公司 | A kind of moulded products of the polyphenyl thioether resin composition containing weld bond |
| CN110983460A (en) * | 2019-12-26 | 2020-04-10 | 重庆普力晟新材料有限公司 | Production method for preparing high-performance polyphenylene sulfide fiber through one-step drafting |
Citations (4)
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|---|---|---|---|---|
| CN101065419A (en) * | 2004-11-30 | 2007-10-31 | 东丽株式会社 | Polyphenylene sulfide resin, process for producing the same, and fiber comprising the same |
| CN101275303A (en) * | 2008-04-24 | 2008-10-01 | 江苏瑞泰科技有限公司 | Stretch-tension-relax setting method for polyphenyl thioether short fibre |
| CN101298707A (en) * | 2008-05-02 | 2008-11-05 | 营口耐斯特环保科技有限公司 | Nano compound modified polyphenyl thioether fibre and preparing method thereof |
| CN102776601A (en) * | 2012-08-16 | 2012-11-14 | 敦煌西域特种新材股份有限公司 | Polyphenylene sulfide fiber spinning technology |
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- 2015-05-08 CN CN201510229672.4A patent/CN104894678A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101065419A (en) * | 2004-11-30 | 2007-10-31 | 东丽株式会社 | Polyphenylene sulfide resin, process for producing the same, and fiber comprising the same |
| CN101275303A (en) * | 2008-04-24 | 2008-10-01 | 江苏瑞泰科技有限公司 | Stretch-tension-relax setting method for polyphenyl thioether short fibre |
| CN101298707A (en) * | 2008-05-02 | 2008-11-05 | 营口耐斯特环保科技有限公司 | Nano compound modified polyphenyl thioether fibre and preparing method thereof |
| CN102776601A (en) * | 2012-08-16 | 2012-11-14 | 敦煌西域特种新材股份有限公司 | Polyphenylene sulfide fiber spinning technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304293A (en) * | 2016-04-21 | 2017-10-31 | 东丽先端材料研究开发（中国）有限公司 | A kind of moulded products of the polyphenyl thioether resin composition containing weld bond |
| CN107304293B (en) * | 2016-04-21 | 2021-04-30 | 东丽先端材料研究开发（中国）有限公司 | Formed product of polyphenylene sulfide resin composition containing weld line |
| CN110983460A (en) * | 2019-12-26 | 2020-04-10 | 重庆普力晟新材料有限公司 | Production method for preparing high-performance polyphenylene sulfide fiber through one-step drafting |
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