CN103971857A - Halogen-free flame-retardant filler rope production process - Google Patents
Halogen-free flame-retardant filler rope production process Download PDFInfo
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- CN103971857A CN103971857A CN201410128429.9A CN201410128429A CN103971857A CN 103971857 A CN103971857 A CN 103971857A CN 201410128429 A CN201410128429 A CN 201410128429A CN 103971857 A CN103971857 A CN 103971857A
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Abstract
The invention discloses a halogen-free flame-retardant filler rope production process. The halogen-free flame-retardant filler rope production process includes steps of kneading 20-35% of phosphorus and nitrogen flame retardant raw materials and 65-80% of polypropylene raw materials by a kneading machine; mixing the kneaded phosphorus and nitrogen flame retardant raw materials and the kneaded polypropylene raw materials by an extruder and pressing a film body; cooling the film body, and stripping the cooled film body by a stripping machine to form cellosilk; heating and stretching the cellosilk; tearing the stretched cellosilk into a webbed cellosilk by a netting machine; heating, stretching and shaping the webbed cellosilk, reeling the shaped cellosilk and manufacturing finished halogen-free flame-retardant filler ropes. Kneaded by the kneading machine, the phosphorus and nitrogen flame retardant raw materials and the polypropylene raw materials are easy to draw and shape, so that the environment-friendly flame-retardant halogen-free filler ropes can be produced.
Description
Technical field
The present invention relates to a kind of production technology of halogen-free flameproof gasket for packing.
Background technology
For ensureing that the construction of cable is stable, rounding, need to fill it with gasket for packing, and at the important area such as subway, aviation, cable needs to adopt the gasket for packing with excellent fire resistance especially, farthest to prevent fire.At present, existing anti-flammability gasket for packing is all to add in process of production halogen system (band bromine) fire retardant on the market, reach fire-retardant effect, but halogenated flame retardant has certain toxicity, not environmental protection with this.Afterwards, someone proposed to replace halogenated flame retardant with phosphorus-nitrogen containing flame retardant, but, because phosphorus-nitrogen containing flame retardant is inorganic, if added phosphorus-nitrogen containing flame retardant, while adopting traditional gasket for packing production technology to produce gasket for packing, be difficult to wire-drawing shape.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to provide a kind of production technology of the halogen-free flameproof gasket for packing that is easy to wire-drawing shape.
For achieving the above object, the present invention adopts following technical scheme:
A production technology for halogen-free flameproof gasket for packing, comprises the steps:
A. the pp material that the phosphorus-nitrogen containing flame retardant raw material that is 20%-35% with kneader to mass percent and mass percent are 65%-80% is mediated;
B. with extruder, the phosphorus-nitrogen containing flame retardant raw material after mediating and pp material are carried out mixing, and extrusion film body;
C. film body is carried out coolingly, then with sub-wire machine, cooled film body is carried out to itemize, form fiber filament;
D. fiber filament is heated, then stretch, so that fiber filament has certain intensity;
E. with net-opening machine, the fiber filament after stretching is torn to webbed fiber filament, so that fiber filament has certain flexibility;
F. netted fiber filament is heated and drawing and setting, then the fiber filament after sizing is carried out to rolling, make halogen-free flameproof gasket for packing finished product.
Wherein, described extruder is provided with seven connected heating regions successively, wherein the Temperature Setting of the first heating region is 170 degree, the Temperature Setting of the second heating region is 190-200 degree, the Temperature Setting of the 3rd heating region is 210-215 degree, and the Temperature Setting of the 4th heating region is 220-225 degree, and the Temperature Setting of slender acanthopanax warm area is 220-228 degree, the Temperature Setting of filtering area is 225-230 degree, and the Temperature Setting in die head district is 200-205 degree.
Wherein, in described steps d, adopt arc baking box plate to heat fiber filament, described arc baking box plate is provided with four connected heating regions successively, wherein the Temperature Setting of the first heating region is 45-50 degree, the Temperature Setting of the second heating region is 100-115 degree, the Temperature Setting of the 3rd heating region is 105-115 degree, and the Temperature Setting of the 4th heating region is 110 degree.
Wherein, described net-opening machine is provided with 40-55 bar porcupine roller, is distributed with some fine needles on this porcupine roller, and those fine needles arrange the density distribution of 6-15 fine needles on described porcupine roller by each centimetre, and the pin footpath of described fine needle is 0.25-0.5 millimeter.
Wherein, the draw speed in described step f is than the slow 2%-5% of the draw speed in steps d.
Wherein, in described steps d and described step f, all adopt five-roller traction machine to stretch.
The production technology of a kind of halogen-free flameproof gasket for packing set forth in the present invention, its beneficial effect is: compared with prior art, technique of the present invention is by adopting kneader to mediate phosphorus-nitrogen containing flame retardant raw material and pp material, make it be easy to wire-drawing shape, thus produce there is environmental protection, the halogen-free flameproof gasket for packing of flame retardant effect.
Brief description of the drawings
Fig. 1 is the flow chart of the production technology of a kind of halogen-free flameproof gasket for packing of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described.
Embodiment 1: please refer to shown in Fig. 1, it has demonstrated the idiographic flow of the production technology of a kind of halogen-free flameproof gasket for packing of the present invention, in step a, the pp material that the phosphorus-nitrogen containing flame retardant raw material that is 20%-35% to mass percent with kneader and mass percent are 65%-80% is mediated.The effect of this step is in order to make the pp material that has added phosphorus-nitrogen containing flame retardant be easy to wire-drawing shape in subsequent production process.
Proceed to step b, with extruder, the phosphorus-nitrogen containing flame retardant raw material after mediating and pp material are carried out mixing, and extrusion film body.In this step, extruder is provided with seven connected heating regions successively, wherein the Temperature Setting of the first heating region is 170 degree, the Temperature Setting of the second heating region is 190-200 degree, the Temperature Setting of the 3rd heating region is 210-215 degree, and the Temperature Setting of the 4th heating region is 220-225 degree, and the Temperature Setting of slender acanthopanax warm area is 220-228 degree, the Temperature Setting of filtering area is 225-230 degree, and the Temperature Setting in die head district is 200-205 degree.This step is mainly to melt and mixing PP grain, to make the effect of wire drawing relatively good.
Proceed to step c, film body is carried out cooling, then with sub-wire machine, cooled film body is carried out to itemize, form fiber filament.It is in order to allow film body crystallization, to facilitate follow-up stretching process that the present embodiment adopts stainless steel cooling water tank to carry out cooling, cooling effect to film body.
Proceed to steps d, fiber filament is heated, then stretch, so that fiber filament has certain intensity.In the present embodiment, adopt arc baking box plate to heat fiber filament, adopt five-roller traction machine to stretch, described arc baking box plate is provided with four connected heating regions successively, wherein the Temperature Setting of the first heating region is 45-50 degree, the Temperature Setting of the second heating region is 100-115 degree, the Temperature Setting of the 3rd heating region is 105-115 degree, and the Temperature Setting of the 4th heating region is 110 degree.
Proceed to step e, with net-opening machine by stretch after fiber filament tear webbed fiber filament so that fiber filament has certain flexibility.Described net-opening machine is provided with 40-55 bar porcupine roller, is distributed with some fine needles on this porcupine roller, and those fine needles arrange the density distribution of 6-15 fine needles on described porcupine roller by each centimetre, and the pin footpath of described fine needle is 0.25-0.5 millimeter.
Proceed to step f, netted fiber filament is heated and drawing and setting, then the fiber filament after sizing is carried out to rolling, make halogen-free flameproof gasket for packing finished product.In this step, can adopt five-roller traction machine to stretch, and draw speed to be slightly slower than the draw speed in steps d, general slow 2%-5% all can, utilize the speed difference stretching, to allow fiber filament have the position of sufficient contraction.
Embodiment 2: it is substantially the same manner as Example 1, difference is only that the mass percent that phosphorus-nitrogen containing flame retardant raw material respectively accounts for from pp material is different, in the present embodiment, the mass percent of phosphorus-nitrogen containing flame retardant raw material is 20%, and the mass percent of pp material is 80%.
Embodiment 3: it is substantially the same manner as Example 1, difference is only that the mass percent that phosphorus-nitrogen containing flame retardant raw material respectively accounts for from pp material is different, in the present embodiment, the mass percent of phosphorus-nitrogen containing flame retardant raw material is 30%, and the mass percent of pp material is 70%.
Embodiment 4: it is substantially the same manner as Example 1, difference is only that the mass percent that phosphorus-nitrogen containing flame retardant raw material respectively accounts for from pp material is different, in the present embodiment, the mass percent of phosphorus-nitrogen containing flame retardant raw material is 35%, and the mass percent of pp material is 65%.
Design focal point of the present invention is: by adopt kneader phosphorus-nitrogen containing flame retardant raw material and pp material are mediated, make it be easy to wire-drawing shape, thus produce there is environmental protection, the halogen-free flameproof gasket for packing of flame retardant effect.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, therefore any trickle amendment, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a production technology for halogen-free flameproof gasket for packing, is characterized in that, comprises the steps:
A. the pp material that the phosphorus-nitrogen containing flame retardant raw material that is 20%-35% with kneader to mass percent and mass percent are 65%-80% is mediated;
B. with extruder, the phosphorus-nitrogen containing flame retardant raw material after mediating and pp material are carried out mixing, and extrusion film body;
C. film body is carried out coolingly, then with sub-wire machine, cooled film body is carried out to itemize, form fiber filament;
D. fiber filament is heated, then stretch, so that fiber filament has certain intensity;
E. with net-opening machine, the fiber filament after stretching is torn to webbed fiber filament, so that fiber filament has certain flexibility;
F. netted fiber filament is heated and drawing and setting, then the fiber filament after sizing is carried out to rolling, make halogen-free flameproof gasket for packing finished product.
2. the production technology of a kind of halogen-free flameproof gasket for packing according to claim 1, it is characterized in that, described extruder is provided with seven connected heating regions successively, wherein the Temperature Setting of the first heating region is 170 degree, the Temperature Setting of the second heating region is 190-200 degree, the Temperature Setting of the 3rd heating region is 210-215 degree, the Temperature Setting of the 4th heating region is 220-225 degree, the Temperature Setting of slender acanthopanax warm area is 220-228 degree, the Temperature Setting of filtering area is 225-230 degree, and the Temperature Setting in die head district is 200-205 degree.
3. the production technology of a kind of halogen-free flameproof gasket for packing according to claim 1, it is characterized in that, in described steps d, adopt arc baking box plate to heat fiber filament, described arc baking box plate is provided with four connected heating regions successively, wherein the Temperature Setting of the first heating region is 45-50 degree, the Temperature Setting of the second heating region is 100-115 degree, and the Temperature Setting of the 3rd heating region is 105-115 degree, and the Temperature Setting of the 4th heating region is 110 degree.
4. the production technology of a kind of halogen-free flameproof gasket for packing according to claim 1, it is characterized in that, described net-opening machine is provided with 40-55 bar porcupine roller, on this porcupine roller, be distributed with some fine needles, those fine needles arrange the density distribution of 6-15 fine needles on described porcupine roller by each centimetre, the pin footpath of described fine needle is 0.25-0.5 millimeter.
5. the production technology of a kind of halogen-free flameproof gasket for packing according to claim 1, is characterized in that, the draw speed in described step f is than the slow 2%-5% of the draw speed in steps d.
6. the production technology of a kind of halogen-free flameproof gasket for packing according to claim 1, is characterized in that, in described steps d and described step f, all adopts five-roller traction machine to stretch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128429.9A CN103971857A (en) | 2014-04-01 | 2014-04-01 | Halogen-free flame-retardant filler rope production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128429.9A CN103971857A (en) | 2014-04-01 | 2014-04-01 | Halogen-free flame-retardant filler rope production process |
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| CN103971857A true CN103971857A (en) | 2014-08-06 |
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| CN201410128429.9A Pending CN103971857A (en) | 2014-04-01 | 2014-04-01 | Halogen-free flame-retardant filler rope production process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280288A (en) * | 2015-10-21 | 2016-01-27 | 上犹县龙泰塑料制品有限公司 | Brominated flame retardant filler rope and production method thereof |
| CN107134317A (en) * | 2017-04-07 | 2017-09-05 | 中山市华子电缆有限公司 | A kind of flame retardant type gasket for packing |
| CN109881284A (en) * | 2019-03-15 | 2019-06-14 | 江西省安安科技有限公司 | A kind of low smoke zero halogen flame retardant polypropylene rope formula and its production technology |
| CN110387599A (en) * | 2019-07-17 | 2019-10-29 | 江西龙泰新材料股份有限公司 | A kind of gasket for packing and its production technology of cable |
| CN114622306A (en) * | 2022-03-11 | 2022-06-14 | 武汉亮九通电缆材料有限公司 | Production method of environment-friendly flame-retardant cable filling rope |
-
2014
- 2014-04-01 CN CN201410128429.9A patent/CN103971857A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280288A (en) * | 2015-10-21 | 2016-01-27 | 上犹县龙泰塑料制品有限公司 | Brominated flame retardant filler rope and production method thereof |
| CN107134317A (en) * | 2017-04-07 | 2017-09-05 | 中山市华子电缆有限公司 | A kind of flame retardant type gasket for packing |
| CN109881284A (en) * | 2019-03-15 | 2019-06-14 | 江西省安安科技有限公司 | A kind of low smoke zero halogen flame retardant polypropylene rope formula and its production technology |
| CN110387599A (en) * | 2019-07-17 | 2019-10-29 | 江西龙泰新材料股份有限公司 | A kind of gasket for packing and its production technology of cable |
| CN114622306A (en) * | 2022-03-11 | 2022-06-14 | 武汉亮九通电缆材料有限公司 | Production method of environment-friendly flame-retardant cable filling rope |
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