CN102174718A - Method for preparing anti-dripping polyester fibers - Google Patents
Method for preparing anti-dripping polyester fibers Download PDFInfo
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- CN102174718A CN102174718A CN 201110024492 CN201110024492A CN102174718A CN 102174718 A CN102174718 A CN 102174718A CN 201110024492 CN201110024492 CN 201110024492 CN 201110024492 A CN201110024492 A CN 201110024492A CN 102174718 A CN102174718 A CN 102174718A
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Abstract
The invention relates to a method for preparing anti-dripping polyester fibers. The method is characterized by comprising the following steps: 1) mixing materials: drying polyester chips, putting the dried polyester chips into an agitator, adding a crosslinking agent with mass being 0.5-5% that of the polyester chips and mixing in the agitator to obtain a co-mixture; 2) carrying out blending extrusion: adding the co-mixture to a twin-screw extruder for blending granulation to obtain granules; 3) melt spinning: drying the granules and then carrying out melt spinning by the existing melt spinning method of the polyester fibers to obtain primary anti-dripping polyester fibers; and 4) directly processing the primary anti-dripping polyester fibers with a 1.0-5MeV electron accelerator under the conditions that the irradiation dose is 10-50kGy, the beam current of the electron accelerator is 3-15mA and the irradiation time is 3-8s to obtain the anti-dripping polyester fibers. The method has the following beneficial effects: the anti-dripping polyester fibers are free of melting and dripping when burnt, can effectively resist dripping and can not release toxic gases or smoke; and the method is simple and practical.
Description
Technical field
The invention belongs to the chemical fibre material technical field, particularly relate to a kind of preparation method of anti-dripping polyester fiber.
Background technology
Polyester fiber has advantages such as modulus height, intensity height, elasticity height, good conformality and heat resistance, has become the fiber species that purposes is the widest, consumption is maximum.But, because polyster fibre melted by heating, decomposition, burning, and phenomenon with fusion drippage, cause secondary harm easily, greatly limited its use, therefore become increasingly active to the research and the application and development of polyster fibre in countries in the world, and the Research Significance of anti-molten drop polyster fibre is very great.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of anti-dripping polyester fiber, the polyester fiber of this method preparation has the characteristics of anti-fusion drippage.
For achieving the above object, the technical solution used in the present invention is: a kind of preparation method of anti-dripping polyester fiber is characterized in that it comprises the following steps:
1) batch mixing: with the polyester slice drying, dried polyester slice is put into mixer; Press 0.5～5% of polyester slice quality and add crosslinking agent (crosslinking agent adds in the mixer), in mixer, mix, obtain blend composition;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: with described particle drying, by the melt spinning method of existing polyester fiber, carry out melt spinning (spinning on melt spinning machine) then, obtain nascent anti-dripping polyester fiber;
4) described nascent anti-dripping polyester fiber is directly handled (being that high-power electron beam is handled) through the electron accelerator of 1.0～5MeV, irradiation dose 10～50kGy, electron accelerator line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The described drying of step 1) is: polyester slice is put into vacuum drying oven dry 4～6h under 90～120 ℃ of conditions, makes that the moisture in the polyester slice is lower than 0.02wt%.
The described crosslinking agent of step 1) is divinylbenzene or trimethylol-propane trimethacrylate.
Step 2) inlet temperature of blend granulation is 80～150 ℃ in the described double screw extruder, and outlet temperature is 255～270 ℃.
The described drying of step 3) is: particle is put into vacuum drying oven dry 4～6h under 90～120 ℃ of conditions, makes that the moisture in the particle is lower than 0.02wt%.
Crosslinking agent is joined in the polyester slice, melt-spinning technology with reference to the normal polyester fiber carries out spinning, pass through electron beam irradiation, make crosslinking agent form tridimensional network at the noncrystalline domain of polyester fiber, when fiber burns, can encase molten drop as the string bag before this fiber is destroyed, thereby prevent the generation of molten drop.
The invention has the beneficial effects as follows: the anti-dripping polyester fiber of preparation, fusion drippage can not take place during burning, can effectively anti-molten drop, can not discharge poisonous gas or smog.The anti-dripping polyester fiber of the present invention preparation carries out spinning with reference to the melt-spinning technology of normal polyester fiber, and is simple and easy to do, the technical value added height.This anti-anti-dripping polyester fiber can directly be widely used in dress material, curtain, bedding, interior decoration and various special materials etc., has remarkable economic efficiency and social benefit.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention, should be understood that these embodiment only are used to the present invention is described and are not used in to limit the scope of the invention.Should be understood that in addition that after the content of having read the present invention's instruction those skilled in the art can do to change or revise to the present invention, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 4h under 120 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select divinylbenzene for use, join in the polyester slice (quality that is divinylbenzene be polyester slice quality 0.5%) according to 0.5% of polyester slice quality, divinylbenzene (crosslinking agent) and polyester slice are fully mixed, obtain blend composition;
2) blend is extruded: blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 4h under 120 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt%;
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber of will coming into being then places 1.5MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 15kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
After the anti-dripping polyester fiber of gained is lighted according to vertical combustion method (GB/T20286-2006), do not produce molten drop (not producing the fusion drippage); The anti-dripping polyester fiber of gained records ultimate strength: 1576N, percentage elongation: 32% according to GB/T14337-2006 under the test speed of 50mm/min.
Embodiment 2:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 5h under 120 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select divinylbenzene for use, join in the polyester slice (quality that is divinylbenzene be polyester slice quality 0.5%) according to 0.5% of polyester slice quality, crosslinking agent divinylbenzene and polyester slice are fully mixed, obtain blend composition;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 5h under 120 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt%;
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber (polyester filaments) of will coming into being then places 1.5MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 20kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The anti-dripping polyester fiber of gained does not produce molten drop after lighting according to vertical combustion method (GB/T20286-2006); The anti-dripping polyester fiber of gained records ultimate strength: 1546N, percentage elongation: 31% according to GB/T14337-2006 under the test speed of 50mm/min.
Embodiment 3:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 6h under 120 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select divinylbenzene for use, join in the polyester slice (quality that is divinylbenzene be polyester slice quality 0.5%), crosslinking agent divinylbenzene and polyester slice are fully mixed according to 0.5% of polyester slice quality;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 6h under 120 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt%;
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber (polyester filaments) of will coming into being then places 1.5MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 50kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The anti-dripping polyester fiber of gained does not produce molten drop after lighting according to vertical combustion method (GB/T20286-2006); The anti-dripping polyester fiber of gained records ultimate strength: 1576N, percentage elongation: 40% according to GB/T14337-2006 under the test speed of 50mm/min.
Embodiment 4:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 5h under 120 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select divinylbenzene for use, join in the polyester slice (quality that is divinylbenzene be polyester slice quality 3%), crosslinking agent divinylbenzene and polyester slice are fully mixed, obtain blend composition according to 3% of polyester slice quality;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 5h under 120 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt%;
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber (polyester filaments) of will coming into being then places 1.5MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 50kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The anti-dripping polyester fiber of gained does not produce molten drop after lighting according to vertical combustion method (GB/T20286-2006); The anti-dripping polyester fiber of gained records ultimate strength: 1696N, percentage elongation: 42% according to GB/T14337-2006 under the test speed of 50mm/min.
Embodiment 5:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 5h under 120 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select trimethylol-propane trimethacrylate for use, join in the polyester slice (quality that is trimethylol-propane trimethacrylate be polyester slice quality 1%) according to 1% of polyester slice quality, crosslinking agent trimethylol-propane trimethacrylate and polyester slice are fully mixed, obtain blend composition;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 5h under 120 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt% (quality);
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber (polyester filaments) of will coming into being then places 1.0MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 50kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The anti-dripping polyester fiber of gained does not produce molten drop after lighting according to vertical combustion method (GB/T20286-2006); The anti-dripping polyester fiber of gained records ultimate strength: 1568N, percentage elongation: 39% according to GB/T14337-2006 under the test speed of 50mm/min.
Embodiment 6:
A kind of preparation method of anti-dripping polyester fiber, it comprises the following steps:
1) batch mixing: polyester slice dry 4h under 90 ℃ of conditions in vacuum drying chamber, make that the moisture in the polyester slice is lower than 0.02wt%, join in the homogenizer then;
Select trimethylol-propane trimethacrylate for use, join in the polyester slice (quality that is trimethylol-propane trimethacrylate be polyester slice quality 5%) according to 5% of polyester slice quality, crosslinking agent trimethylol-propane trimethacrylate and polyester slice are fully mixed, obtain blend composition;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle (promptly being cut into anti-molten drop polyester slice);
3) melt spinning: the particle that the blend granulation is obtained dry 4h under 90 ℃ of conditions in vacuum drying chamber makes that the moisture in the particle (promptly anti-molten drop polyester slice) is lower than 0.02wt% (quality);
With the spinning on melt spinning machine of dried particle (by the melt spinning method of existing polyester fiber), obtain nascent anti-dripping polyester fiber (polyester filaments);
4) anti-dripping polyester fiber (polyester filaments) of will coming into being then places 5MeV can electron accelerator to transmit on the bundle frame, utilize electron beam irradiation to impel the crosslinking agent divinylbenzene to form tridimensional network, dosage of radiation 10kGy, line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
The anti-dripping polyester fiber of gained does not produce molten drop after lighting according to vertical combustion method (GB/T20286-2006); The anti-dripping polyester fiber of gained records ultimate strength: 1868N, percentage elongation: 45% according to GB/T14337-2006 under the test speed of 50mm/min.
Each raw material that the present invention is cited and the bound value of each raw material, and the bound value of each technological parameter can both realize the present invention, do not enumerate embodiment one by one at this.
Claims (4)
1. the preparation method of an anti-dripping polyester fiber is characterized in that it comprises the following steps:
1) batch mixing: with the polyester slice drying, dried polyester slice is put into mixer; Press 0.5～5% of polyester slice quality and add crosslinking agent, in mixer, mix, obtain blend composition;
2) blend is extruded: described blend composition is joined blend granulation in the double screw extruder, obtain particle;
3) melt spinning: with described particle drying, by the melt spinning method of existing polyester fiber, carry out melt spinning then, obtain nascent anti-dripping polyester fiber;
4) described nascent anti-dripping polyester fiber is directly handled through the electron accelerator of 1.0～5MeV, irradiation dose 10～50kGy, electron accelerator line 3～15mA, irradiation time 3～8s obtains anti-dripping polyester fiber.
2. the preparation method of a kind of anti-dripping polyester fiber according to claim 1, it is characterized in that: the described drying of step 1) is: polyester slice is put into vacuum drying oven dry 4～6h under 90～120 ℃ of conditions, makes that the moisture in the polyester slice is lower than 0.02wt%.
3. the preparation method of a kind of anti-dripping polyester fiber according to claim 1, it is characterized in that: the described crosslinking agent of step 1) is divinylbenzene or trimethylol-propane trimethacrylate.
4. the preparation method of a kind of anti-dripping polyester fiber according to claim 1, it is characterized in that: the described drying of step 3) is: particle is put into vacuum drying oven dry 4～6h under 90～120 ℃ of conditions, makes that the moisture in the particle is lower than 0.02wt%.
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| CN 201110024492 CN102174718B (en) | 2011-01-21 | 2011-01-21 | Method for preparing anti-dripping polyester fibers |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400243A (en) * | 2011-10-21 | 2012-04-04 | 中国纺织工程学会 | Method for reducing melt drips of polyester fibers |
| CN102443874A (en) * | 2011-10-21 | 2012-05-09 | 中国纺织工程学会 | Method for reducing dripping of polyamide fiber |
| CN102560747A (en) * | 2011-12-11 | 2012-07-11 | 武汉纺织大学 | Preparation method of durable low-smoke halogen-free flame-retardant polyacrylonitrile fiber |
| CN103361978A (en) * | 2012-04-02 | 2013-10-23 | 中国人民解放军总后勤部军需装备研究所 | Method for preparing anti-melting polyester fiber or fabric |
| CN104018241A (en) * | 2014-05-23 | 2014-09-03 | 湖北申邦化纤科技有限公司 | Preparation method of antibacterial recycling polyester fiber |
| CN105063787A (en) * | 2015-06-25 | 2015-11-18 | 江苏神鹤科技发展有限公司 | Cross-linked polymer and preparation method thereof |
| CN107974827A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of anti-dripping fibre and preparation method thereof and product |
| CN113862820A (en) * | 2021-11-15 | 2021-12-31 | 罗莱生活科技股份有限公司 | Three-dimensional crimped polyester fiber, fabric and application of fabric in pillow, quilt or mattress filling material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400243A (en) * | 2011-10-21 | 2012-04-04 | 中国纺织工程学会 | Method for reducing melt drips of polyester fibers |
| CN102443874A (en) * | 2011-10-21 | 2012-05-09 | 中国纺织工程学会 | Method for reducing dripping of polyamide fiber |
| CN102560747A (en) * | 2011-12-11 | 2012-07-11 | 武汉纺织大学 | Preparation method of durable low-smoke halogen-free flame-retardant polyacrylonitrile fiber |
| CN102560747B (en) * | 2011-12-11 | 2013-09-18 | 武汉纺织大学 | Preparation method of durable low-smoke halogen-free flame-retardant polyacrylonitrile fiber |
| CN103361978A (en) * | 2012-04-02 | 2013-10-23 | 中国人民解放军总后勤部军需装备研究所 | Method for preparing anti-melting polyester fiber or fabric |
| CN104018241A (en) * | 2014-05-23 | 2014-09-03 | 湖北申邦化纤科技有限公司 | Preparation method of antibacterial recycling polyester fiber |
| CN105063787A (en) * | 2015-06-25 | 2015-11-18 | 江苏神鹤科技发展有限公司 | Cross-linked polymer and preparation method thereof |
| CN107974827A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of anti-dripping fibre and preparation method thereof and product |
| CN113862820A (en) * | 2021-11-15 | 2021-12-31 | 罗莱生活科技股份有限公司 | Three-dimensional crimped polyester fiber, fabric and application of fabric in pillow, quilt or mattress filling material |
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