CN1865546A - Polypropylene/clay composite fiber and method for preparing same - Google Patents
Polypropylene/clay composite fiber and method for preparing same Download PDFInfo
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- CN1865546A CN1865546A CN 200610044880 CN200610044880A CN1865546A CN 1865546 A CN1865546 A CN 1865546A CN 200610044880 CN200610044880 CN 200610044880 CN 200610044880 A CN200610044880 A CN 200610044880A CN 1865546 A CN1865546 A CN 1865546A
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Abstract
The invention discloses a polypropylene and clay composite fiber and preparing method, which comprises the following parts: 80-94.5 percent chemical degraded modified polypropylene resin, 0.5-5 percent organic modified clay and 5-15 percent compatible agent. The fusion intercalation method comprises the following steps: fusing to blend; ingressing polypropylene part segment in the layered silicate clay piece; stripping the clay; dispersing clay on the PP substrate to spin-out polypropylene and layered silicate nanometer composition; utilizing molten spinning method to prepare polypropylene and clay composite fiber on the spinning equipment; possessing excellent fire-retardancy and antistatic property as indoor ornament.
Description
Technical field
The present invention relates to a kind of polypropylene/clay composite fiber and preparation method thereof, belong to the synthetic fiber technical field.
Background technology
One of important use of acrylic resin is a fiber, be applied to take, industry with and house ornamentation use.The intrinsic shortcoming of polypropylene is that limited oxygen index is low, plays static easily, has therefore limited its application.For this reason, be one of emphasis of polypropylene modification research around the anti-flammability of improving polypropylene fibre and antistatic behaviour.Usually the fire retardant of polypropylene fibre is phosphorous type and expansion type flame retardant, Halogen type fire retardant, siliceous type fire retardant, metal hydroxides and oxide fire retardant thereof etc.What wherein fire resistance was good is Halogen type fire retardant, can produce noxious material during still owing to burning, so the use of this based flame retardant is restricted.Nano composite polymer/laminated silicate material is the research focus in investigation of materials field in recent years, performances such as its mechanics, performance, hot property, fire resistance and barrier property are significantly increased than bulk polymer, and polypropylene/clay nanocomposites is one of them.Studies show that mechanical property, hot property and the barrier property of polypropylene (being called for short PP)/clay nanocomposites can both obtain raising in various degree.Stretch modulus and heat distortion temperature, fire resistance be improved significantly.
Current, the research and development of polyalcohol/clay soil compound mainly are to concentrate on the plastics aspect both at home and abroad, the report that carries out fibre spinning about polypropylene/nano clay composition seldom, Chinese patent CN1493607A discloses a kind of polypropylene/clay nano compound and preparation method thereof and the application in spinning, consisting of of this compound: the polypropylene homopolymer 85-97.5 of chemical degradation modification, organic clay 0.5-5, polypropylene grafted maleic anhydride 0.5-5, linear polystyrene 0.5-2, high density polyethylene (HDPE) 1-5, this fiber has good antistatic behaviour and hygroscopicity, but anti-flammability does not ensure.
The composition difference of such material, preparation method's difference can cause the performance of product to differ greatly, during such Study on Technology still is in and continues to explore.
Summary of the invention
The object of the present invention is to provide a kind of polypropylene/clay composite fiber and preparation method thereof, good product performance especially has excellent flame-retardant performance and antistatic property; The preparation method is scientific and reasonable, and is simple, is beneficial to enforcement.
Polypropylene/clay composite fiber of the present invention, its ingredients by weight percentage composition is: melt flow index is chemical degradation modified polypropylene resin 80～94.5%, organo-clay 0.5～5% and the compatilizer 5～15% of 10～50g/10min.
Wherein:
The melt flow index of chemical degradation modified polypropylene resin is preferably 30～45g/10min.
Compatilizer is a polypropylene grafted maleic anhydride, and the percent grafting scope is 0.1～5%.
The chemical degradation modified polypropene is made according to routine techniques, and the control melt flow index satisfies 10～50g/10min and gets final product.
Organo-clay is a kind of layer silicate mineral clay, obtains according to the CN1288023A patented technology.
Scientific and reasonable, simple preparation method comprises preparation, spinning, coiling, drawing-off and the HEAT SETTING of polypropylene/clay complex, carries out according to following steps:
(1) with batch mixes, through the double screw extruder granulation, extrude and make compound section, extrusion temperature is 190～210 ℃;
(2) with compound section vacuumize under 60～120 ℃ temperature;
(3) melt spinning is carried out in the compound section of drying, spinning temperature is 200～250 ℃, and spinning speed is 100～1000m/min, makes undrawn yarn;
(4) undrawn yarn is 70～120 ℃ temperature and HEAT SETTING, and drafting multiple is 1.5～5 times, obtains finished silk.
Preferably with undrawn yarn through two road drawing-offs with HEAT SETTING instant heating relaxation processes.
Other repeats no more with the fiber production routine techniques.
The present invention forms by adjusting batching, adopt the fusion intercalation method, pass through melt blending, polypropylene part segment is entered between the clay of laminar silicate lamella, clay is peeled off, thereby obtain the polypropylene/layered silicate nano-composition of clay homodisperse good spinnability in PP matrix, on general spinning equipment, utilize melt spinning method to prepare polypropylene/clay nano composite fibre then, this fiber has excellent flame-retardant performance and antistatic property, obtaining filament number is the fine denier polypropylene composite fibre at 1～10 dawn, TENSILE STRENGTH is 2.0～5.0cN/dtex, can be used as fire resistance fibre and be used for indoor ornament, as carpet, sofa cloth and curtain etc. also can be used for industrial use, as the anti-flammability filter cloth, oil strain felt etc.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
Selecting melt index for use is that polypropylene homopolymer 90% weight, organo-clay 5% weight and the percent grafting of 40 chemical degradation modification is that 2% promoting agent for graft copolymerization of polypropylene with maleic anhydride 5% weight is through the double screw extruder granulation, extrusion temperature is 190 ℃, extrude and obtain compound section, vacuumize under 80 ℃ temperature.Then compound slice is carried out melt spinning under 210 ℃, spinning speed is 600m/min, and undrawn yarn is two road drawing-off and HEAT SETTING between 90 ℃ through hot drawing temperature, and the total draft multiple is 3 times, obtains finished silk.
Embodiment 2
Selecting melt index for use is that polypropylene homopolymer 90% weight, organo-clay 5% weight and the percent grafting of 40 chemical degradation modification is that 1% promoting agent for graft copolymerization of polypropylene with maleic anhydride 5% weight is through the double screw extruder granulation, extrusion temperature is 190 ℃, extrude and obtain compound section, vacuumize under 100 ℃ temperature.Then compound slice is carried out melt spinning under 200 ℃.Spinning speed is 700m/min.Undrawn yarn is two road drawing-off and HEAT SETTING between 100 ℃ through hot drawing temperature, and the total draft multiple is 2.5 times, obtains finished silk.
Embodiment 3
Selecting melt index for use is that polypropylene homopolymer 88% weight, organo-clay 5% weight and the percent grafting of 35 chemical degradation modification is that 3% promoting agent for graft copolymerization of polypropylene with maleic anhydride 7% weight is through the double screw extruder granulation, extrusion temperature is 190 ℃, extrude and obtain compound section, vacuumize under 60 ℃ temperature.Then compound slice is carried out melt spinning under 220 ℃.Spinning speed is 800m/min.Undrawn yarn is two road drawing-off and HEAT SETTING between 70 ℃ through hot drawing temperature, and the total draft multiple is 4 times, obtains finished silk.
Embodiment 4
Selecting melt index for use is that polypropylene homopolymer 85% weight, organo-clay 5% weight and the percent grafting of 45 chemical degradation modification is that 0.5% promoting agent for graft copolymerization of polypropylene with maleic anhydride 10% weight is through the double screw extruder granulation, extrusion temperature is 190 ℃, extrude and obtain compound section, vacuumize under 110 ℃ temperature.Then compound slice is carried out melt spinning under 210 ℃.Spinning speed is 700m/min.Undrawn yarn is two road drawing-off and HEAT SETTING between 110 ℃ through hot drawing temperature, and the total draft multiple is 3 times, obtains finished silk.
Embodiment 5
Selecting melt index for use is that polypropylene homopolymer 90% weight, organo-clay 5% weight and the percent grafting of 30 chemical degradation modification is that 1.5% promoting agent for graft copolymerization of polypropylene with maleic anhydride 5% weight is through the double screw extruder granulation, extrusion temperature is 210 ℃, extrude and obtain compound section, vacuumize under 90 ℃ temperature.Then compound slice is carried out melt spinning under 210 ℃.Spinning speed is 600m/min.Undrawn yarn is drawing-off and a HEAT SETTING between 80 ℃ through hot drawing temperature, and the total draft multiple is 4 times, obtains finished silk.
Embodiment 6
Selecting melt index for use is that polypropylene homopolymer 92% weight, organo-clay 3% weight and the percent grafting of 35 chemical degradation modification is that 3.5% promoting agent for graft copolymerization of polypropylene with maleic anhydride 5% weight is through the double screw extruder granulation, extrusion temperature is 200 ℃, extrude and obtain compound section, vacuumize under 70 ℃ temperature.Then compound slice is carried out melt spinning under 230 ℃.Spinning speed is 650m/min.Undrawn yarn is two road drawing-off and HEAT SETTING between 80 ℃ through hot drawing temperature, and the total draft multiple is 3 times, obtains finished silk.
Embodiment 7
Selecting melt index for use is that polypropylene homopolymer 90% weight, organo-clay 2% weight and the percent grafting of 20 chemical degradation modification is that 1.5% promoting agent for graft copolymerization of polypropylene with maleic anhydride 8% weight is through the double screw extruder granulation, extrusion temperature is 205 ℃, extrude and obtain compound section, vacuumize under 100 ℃ temperature.Then compound slice is carried out melt spinning under 205 ℃.Spinning speed is 700m/min.Undrawn yarn is drawing-off and a HEAT SETTING between 80 ℃ through hot drawing temperature, and the total draft multiple is 4 times, obtains finished silk.
Embodiment 8
Selecting melt index for use is that polypropylene homopolymer 90% weight, organo-clay 5% weight and the percent grafting of 35 chemical degradation modification is that 3.5% promoting agent for graft copolymerization of polypropylene with maleic anhydride 5% weight is through the double screw extruder granulation, extrusion temperature is 190 ℃, extrude and obtain compound section, vacuumize under 80 ℃ temperature.Then compound slice is carried out melt spinning under 215 ℃.Spinning speed is 800m/min.Undrawn yarn is two road drawing-off and HEAT SETTING between 90 ℃ through hot drawing temperature, and the total draft multiple is 3 times, obtains finished silk.
Claims (5)
1, a kind of polypropylene/clay composite fiber is characterized in that its ingredients by weight percentage composition is: melt flow index is chemical degradation modified polypropylene resin 80～94.5%, organo-clay 0.5～5% and the compatilizer 5～15% of 10～50g/10min.
2, polypropylene/clay composite fiber according to claim 1 is characterized in that chemical degradation modified polypropylene resin melt flow index is 30～45g/10min.
3, polypropylene/clay composite fiber according to claim 1 and 2 is characterized in that compatilizer is a polypropylene grafted maleic anhydride, and the percent grafting scope is 0.1～5%.
4, the preparation method of polypropylene/clay composite fiber according to claim 1 comprises it is characterized in that preparation, spinning, coiling, drawing-off and the HEAT SETTING of polypropylene/clay complex carrying out according to following steps:
(1) with batch mixes, through the double screw extruder granulation, extrude and make compound section;
(2) with compound section vacuumize under 60～120 ℃ temperature;
(3) melt spinning is carried out in the compound section of drying, spinning temperature is 200～250 ℃, and spinning speed is 100～1000m/min, makes undrawn yarn;
(4) undrawn yarn drawing-off and HEAT SETTING under 70～120 ℃ temperature, drafting multiple is 1.5～5 times, obtains drafted fibre.
5, the preparation method of polypropylene/clay composite fiber according to claim 4 is characterized in that undrawn yarn handles with HEAT SETTING through two road drawing-offs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100448808A CN100445437C (en) | 2006-06-14 | 2006-06-14 | Polypropylene/clay composite fiber and method for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100448808A CN100445437C (en) | 2006-06-14 | 2006-06-14 | Polypropylene/clay composite fiber and method for preparing same |
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| Publication Number | Publication Date |
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| CN1865546A true CN1865546A (en) | 2006-11-22 |
| CN100445437C CN100445437C (en) | 2008-12-24 |
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| CNB2006100448808A Expired - Fee Related CN100445437C (en) | 2006-06-14 | 2006-06-14 | Polypropylene/clay composite fiber and method for preparing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509155B (en) * | 2009-03-13 | 2012-05-23 | 东华大学 | Dyeable fine denier polypropylene fibers of clay soil/polyolefin particle and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5910523A (en) * | 1997-12-01 | 1999-06-08 | Hudson; Steven David | Polyolefin nanocomposites |
| CN1493607A (en) * | 2002-10-29 | 2004-05-05 | 中国科学院化学研究所 | Polypropylene/clay nano complex substance and its preparation method and application |
-
2006
- 2006-06-14 CN CNB2006100448808A patent/CN100445437C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509155B (en) * | 2009-03-13 | 2012-05-23 | 东华大学 | Dyeable fine denier polypropylene fibers of clay soil/polyolefin particle and preparation method thereof |
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| CN100445437C (en) | 2008-12-24 |
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Granted publication date: 20081224 Termination date: 20120614 |