CN103031616A - High-strength and big-elongation polyester industrial yarn used for air bag, and preparation method thereof - Google Patents
High-strength and big-elongation polyester industrial yarn used for air bag, and preparation method thereof Download PDFInfo
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- CN103031616A CN103031616A CN2012105421277A CN201210542127A CN103031616A CN 103031616 A CN103031616 A CN 103031616A CN 2012105421277 A CN2012105421277 A CN 2012105421277A CN 201210542127 A CN201210542127 A CN 201210542127A CN 103031616 A CN103031616 A CN 103031616A
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Abstract
The invention discloses a high-strength and big-elongation polyester industrial yarn used for an air bag. The polyester industrial yarn is formed in the way as follows: taking a high-viscosity PET (polyester) chip as the raw material, carrying out melt spinning to the high-viscosity PET (polyester) chip, and then adding a proper amount of spinning finish for draw winding, and the formulation of the polyester industrial yarn comprises the following components in part by weight: 100 parts of HLD 301 high-viscosity PET and 0.4-1.0 part of HM 100 spinning finish. The preparation method comprises the following steps: solid-phase polymerization, melting, measuring, cooling forming, finishing, drawing and winding. The prepared industrial yarn used for the air bag has the advantages that the breaking strength can reach 8.0 CN/dtex above, the breaking elongation can also reach 18 percent to 24 percent, the performance is closer to that of the nylon-66, and both the two indexes of strength and elongation reach the international advanced level.
Description
Technical field
The invention belongs to the macromolecular fibre production technical field, particularly relate to the large elongation air bag of a kind of high strength polyester industrial yarn and preparation method thereof.
Background technology
Recently come, along with the raising of living standards of the people and the fast development of auto industry, not only the vehicle of economy but also safety was liked by people more and more.As one of important configuration of vehicle safety performance: automotive Airbag Technology has also obtained very much progress.In recent years our develop the air bag polyester industrial yarn, the monopolization situation take nylon-66 as raw material of being through with also greatly reduces the cost of safe automobile air bag.By improvement raising in recent years, air bag has obtained popularization progressively with polyester industrial yarn.
Yet terylene and polyamide fibre there are differences owing to molecular structure own, relative polyamide fibre, and the modulus of terylene is higher, and its resilience is also poor.For the performance that makes the terylene air bag reaches the standard of polyamide fibre air bag, the client except the improvement to self weaving technology, for the requirement also corresponding raising of air bag with terylene worker silk, indivedual indexs even requirement reaches or near the physical index of nylon-66.Generally about 6.8～7.0CN/dtex, and extension at break only is 12%～15%, still can not satisfy the requirement of auto industry with the intensity of polyester industrial yarn for the air bag of Vehicles Collected from Market main flow.Therefore develop the large elongation air bag of high strength has become polyester industrial yarn manufacturing enterprise with polyester industrial yarn urgent task.
Summary of the invention
The present invention overcomes the deficiency that above-mentioned prior art exists, and has proposed the large elongation air bag of a kind of high strength polyester industrial yarn and preparation method thereof.This air bag has reached more than the 8.0CN/dtex with the polyester industrial yarn fracture strength, and extension at break can reach 18%～24% again, and near the performance of nylon-66, this intensity and elongation two large indexs have all reached international most advanced level to its performance more.
The technical scheme that technical solution problem of the present invention is taked is:
The large elongation air bag of a kind of high strength polyester industrial yarn, take the PET section as raw material, through the melting spinning, make at the spinning oil after-drawing coiling that interpolation is an amount of, it is characterized in that, described PET section is the extra large sharp high sticking PET of HLD301 that gets, and described spinning oil is this HM100 of pine spinning oil of production air bag silk special use, and fills a prescription and count with weight portion:
100 parts of the high sticking PET of Hai Lide HLD301,
0.4～1.0 part of this HM100 of pine spinning oil;
Its fracture strength 〉=8.0CN/dtex and extension at break are 18%～24%.
The large elongation air bag of described a kind of high strength polyester industrial yarn is characterized in that the inherent viscosity of the high sticking PET of the sharp HLD301 of getting in described sea is 1.0～1.15.
The large elongation air bag of described a kind of high strength comprises solid phase with the preparation method of polyester industrial yarn, melting, and metering, cooling forming oils, and stretches and the coiling step, it is characterized in that:
⑴ solid phase: get inherent viscosity and be 0.67 fiber level PET raw material, through entering solid state polymerization reactor after crystallization, the preheating and under the High Purity Nitrogen protection, carrying out the continous mode solid phase, the control reaction temperature is at 200 ℃～215 ℃, 20～30 hours reaction time, so that the molecular weight of PET reaches more than 35000, inherent viscosity is 1.0～1.15, and it is sharp that the HLD301 height glues PET namely to become the sea;
⑵ melting: getting the high sticking PET of the sharp HLD301 of getting in above-mentioned solid phase polymerization procedure gained sea is raw material, enters into screw rod by the spinning feed bin, and screw rod is respectively distinguished Temperature Setting and at 290 ℃～330 ℃ melting heated in section;
⑶ metering: the melt through fully melting requires accurate measurement through measuring pump according to the fiber number of setting;
⑷ cooling forming: then melt is assigned to each filament spinning component, and by the spinneret orifice ejection, the cooling air through the side is cooled to tow again, and cooling air control temperature is 18～25 ℃, and humidity is 65～70%;
⑸ oil: before tow entered stretching, oil process oiled on the employing emulsion, makes adsorption one deck and the adequately emulsified textile finish oil emulsion of pure water of tow; Described textile finish oil is this HM100 of pine spinning oil, and consumption is that the sea is sharp that the HLD301 height glues 0.4～1.0% of PET weight;
⑹ stretch: the tow through oiling stretches and HEAT SETTING to the roller roller by each, and the speed of roller is 500m/min ~ 3000m/min, and temperature is controlled at 80 ℃～230 ℃;
⑺ reel: the tow direct winfing after the high-speed winding mode of employing fork type will stretch is on paper tube.
The spinning oil that the present invention adopts is to have good rub resistance with the special of foreign vendor cooperative development in the spinning oil of production safety air bag silk, coherent, can greatly reduce stretch and rear weaving process in the generation of lousiness.The purity of the High Purity Nitrogen that adopts in the solid phase polymerization step 〉=99.999%.Temperature is controlled at 80 ℃～230 ℃ in stretching and the HEAT SETTING step; Wherein draft temperature is 80 ℃～150 ℃, and heat setting temperature is 150 ℃～230 ℃; Select total multiplying power 5～7 that stretches.
The large elongation air bag of high strength polyester industrial yarn by preparation method's preparation of the present invention, has fracture strength up to arriving 8.0CN/dtex, extension at break is large, 18～24% characteristics have been reached, and lousiness is few, weaving performance is good, for the production of the air bag performance approach or reached the index of polyamide fibre air bag.
The specific embodiment
Embodiment 1:
A kind of product specification is the prescription that the large elongation air bag of the high strength of 555dtex/144f is used polyester industrial yarn, and is as follows in weight portion:
Inherent viscosity is 100 parts of 1.05 the high sticking PET of extra large sharp HLD301,
0.6 part of this HM100 of pine spinning oil.
After tested, its fracture strength is that 8.2CN/dtex and extension at break are 19%.
Embodiment 2:
The large elongation air bag of high strength that another kind of product specification the is 555dtex/96f prescription of polyester industrial yarn, as follows in weight portion:
Inherent viscosity is 100 parts of 1.0 the high sticking PET of extra large sharp HLD301,
0.4 part of this HM100 of pine spinning oil.
After tested, its fracture strength is that 8.1CN/dtex and extension at break are 20%.
Embodiment 3:
Another product specification is the large elongation air bag of the high strength of 466dtex/144f with the prescription of polyester industrial yarn, in weight portion:
Inherent viscosity is 100 parts of 1.05 the high sticking PET of extra large sharp HLD301,
1.0 parts of this HM100 of pine spinning oils.
After tested, its fracture strength is that 8.0CN/dtex and extension at break are 22%.
Embodiment 4:
Another product specification is the large elongation air bag of the high strength of 700dtex/144f with the prescription of polyester industrial yarn, in weight portion:
Inherent viscosity is 100 parts of 1.15 the high sticking PET of extra large sharp HLD301,
0.8 part of this HM100 of pine spinning oil.
After tested, its fracture strength is that 8.1CN/dtex and extension at break are 20%.
Embodiment 5:
The large elongation air bag of a kind of high strength is with the preparation method of polyester industrial yarn: be 0.67 fiber level PET raw material with inherent viscosity; through entering solid state polymerization reactor after crystallization, the preheating and under High Purity Nitrogen (purity 〉=99.999%) protection, carrying out the continous mode solid phase; the control reaction temperature is at 215 ℃; 25 hours reaction time; so that the molecular weight of PET reaches more than 35000, obtain inherent viscosity and be 1.05 extra large sharp the high sticking PET of HLD301.Send into after the high sticking PET of the sharp HLD301 of getting in gained sea measures with weight portion and spin front feed bin, heat its abundant melting by screw rod, melt temperature is controlled at 300 ℃, the Screw Extrusion pressure setting is at 13Mpa, through entering filament spinning component (144 hole) ejection after the melt metering pump metering, the pressure before the filament spinning component is 14Mpa again; The melt of ejection is cooled into tow by the form of lateral blowing again, and the cooling air temperature is controlled at 20 ℃; The tow of cooling forming oils by oiling roller, and the oiling roller rotating speed is controlled at 20rpm, and the used textile finish oil that oils is this HM100 of pine spinning oil, and the amount that oils is controlled at 0.6% of the high sticking PET weight of the sharp HLD301 of getting in sea; Then tow enters draw roll through three stretchings, and total multiplying power that stretches is 6.0, and draft temperature is 120 ℃, enters the 4th pair roller again, and Temperature Setting is 230 ℃ and carries out heat-shaping, the fibre structure performance is tended towards stability.The tow of finishing that stretches at last adopts the fork type high-speed winder to be wound on the paper tube, and winding speed is 2800m/min.Get product, its product specification is 555dtex/144f, and after tested, its fracture strength is that 8.2CN/dtex and extension at break are 18%.
Embodiment 6:
The large elongation air bag of another kind of high strength is with the preparation method of polyester industrial yarn: be 0.67 fiber level PET raw material with inherent viscosity; through entering solid state polymerization reactor after crystallization, the preheating and under High Purity Nitrogen (purity 〉=99.999%) protection, carrying out the continous mode solid phase; the control reaction temperature is at 210 ℃; 25 hours reaction time; so that the molecular weight of PET reaches more than 35000, obtain inherent viscosity and be 1.05 extra large sharp the high sticking PET of HLD301.Send into after the high sticking PET of the sharp HLD301 of getting in gained sea measures with weight portion and spin front feed bin, heat its abundant melting by screw rod, melt temperature is controlled at 305 ℃, the Screw Extrusion pressure setting is at 14Mpa, through entering filament spinning component (144 hole) ejection after the melt metering pump metering, the pressure before the filament spinning component is 14Mpa again; The melt of ejection is cooled into tow by the form of lateral blowing again, and the cooling air temperature is controlled at 20 ℃; The tow of cooling forming oils by oiling roller, and the oiling roller rotating speed is controlled at 25rpm, and the used textile finish oil that oils is this HM100 of pine spinning oil, and the amount that oils is controlled at 1.0% of the high sticking PET weight of the sharp HLD301 of getting in sea; Then tow enters draw roll by three stretchings, and total multiplying power that stretches is 6.0, and draft temperature is 128 ℃, enters the 4th pair roller again, and Temperature Setting is 225 ℃ and heats, the fibre structure performance is tended towards stability.The tow of finishing that stretches at last adopts the fork type high-speed winder to be wound on the paper tube, and winding speed is 2600m/min.Get product, its product specification is 466dtex/144f, and after tested, its fracture strength is that 8.1CN/dtex and extension at break are 20%.
Claims (3)
1. the large elongation air bag of high strength polyester industrial yarn, take the PET section as raw material, through the melting spinning, make at the spinning oil after-drawing coiling that interpolation is an amount of, it is characterized in that, described PET section is the extra large sharp high sticking PET of HLD301 that gets, and described spinning oil is this HM100 of pine spinning oil of production air bag silk special use, and fills a prescription and count with weight portion:
100 parts of the high sticking PET of Hai Lide HLD301,
0.4～1.0 part of this HM100 of pine spinning oil;
Its fracture strength 〉=8.0CN/dtex and extension at break are 18%～24%.
2. the large elongation air bag of a kind of high strength according to claim 1 polyester industrial yarn is characterized in that the inherent viscosity of the high sticking PET of the sharp HLD301 of getting in described sea is 1.0～1.15.
3. the preparation method of the large elongation air bag usefulness of a high strength according to claim 1 polyester industrial yarn comprises solid phase, melting, and metering, cooling forming oils, and stretches and the coiling step, it is characterized in that:
⑴ solid phase: get inherent viscosity and be 0.67 fiber level PET raw material, through entering solid state polymerization reactor after crystallization, the preheating and under the High Purity Nitrogen protection, carrying out the continous mode solid phase, the control reaction temperature is at 200 ℃～215 ℃, 20～30 hours reaction time, so that the molecular weight of PET reaches more than 35000, inherent viscosity is 1.0～1.15, and it is sharp that the HLD301 height glues PET namely to become the sea;
⑵ melting: getting the high sticking PET of the sharp HLD301 of getting in above-mentioned solid phase polymerization procedure gained sea is raw material, enters into screw rod by the spinning feed bin, and screw rod is respectively distinguished Temperature Setting and at 290 ℃～330 ℃ melting heated in section;
⑶ metering: the melt through fully melting requires accurate measurement through measuring pump according to the fiber number of setting;
⑷ cooling forming: then melt is assigned to each filament spinning component, and by the spinneret orifice ejection, the cooling air through the side is cooled to tow again, and cooling air control temperature is 18～25 ℃, and humidity is 65～70%;
⑸ oil: before tow entered stretching, oil process oiled on the employing emulsion, makes adsorption one deck and the adequately emulsified textile finish oil emulsion of pure water of tow; Described textile finish oil is this HM100 of pine spinning oil, and consumption is that the sea is sharp that the HLD301 height glues 0.4～1.0% of PET weight;
⑹ stretch: the tow through oiling stretches and HEAT SETTING to the roller roller by each, and the speed of roller is 500m/min ~ 3000m/min, and temperature is controlled at 80 ℃～230 ℃;
⑺ reel: the tow direct winfing after the high-speed winding mode of employing fork type will stretch is on paper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105421277A CN103031616A (en) | 2012-12-14 | 2012-12-14 | High-strength and big-elongation polyester industrial yarn used for air bag, and preparation method thereof |
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| CN2012105421277A CN103031616A (en) | 2012-12-14 | 2012-12-14 | High-strength and big-elongation polyester industrial yarn used for air bag, and preparation method thereof |
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| CN103031616A true CN103031616A (en) | 2013-04-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397395A (en) * | 2013-08-07 | 2013-11-20 | 亚东工业（苏州）有限公司 | Preparation method of high-resilience polyester industrial filament yarns for supplementary restraint system |
| CN103849948A (en) * | 2014-03-10 | 2014-06-11 | 浙江尤夫高新纤维股份有限公司 | Producing method of dacron industrial filaments for melt direct spinning safety airbag |
| CN110158188A (en) * | 2019-05-27 | 2019-08-23 | 浙江海利得新材料股份有限公司 | A kind of high-strength flame-resistant terylene industrial yarn preparation method |
| CN110158190A (en) * | 2019-05-27 | 2019-08-23 | 浙江海利得新材料股份有限公司 | A kind of preparation method of high-strength flame-resistant terylene industrial yarn |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634052A (en) * | 2009-08-24 | 2010-01-27 | 浙江海利得新材料股份有限公司 | Process for producing polyester industrial fiber for processing safe air bag of automobile |
-
2012
- 2012-12-14 CN CN2012105421277A patent/CN103031616A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634052A (en) * | 2009-08-24 | 2010-01-27 | 浙江海利得新材料股份有限公司 | Process for producing polyester industrial fiber for processing safe air bag of automobile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397395A (en) * | 2013-08-07 | 2013-11-20 | 亚东工业（苏州）有限公司 | Preparation method of high-resilience polyester industrial filament yarns for supplementary restraint system |
| CN103849948A (en) * | 2014-03-10 | 2014-06-11 | 浙江尤夫高新纤维股份有限公司 | Producing method of dacron industrial filaments for melt direct spinning safety airbag |
| CN110158188A (en) * | 2019-05-27 | 2019-08-23 | 浙江海利得新材料股份有限公司 | A kind of high-strength flame-resistant terylene industrial yarn preparation method |
| CN110158190A (en) * | 2019-05-27 | 2019-08-23 | 浙江海利得新材料股份有限公司 | A kind of preparation method of high-strength flame-resistant terylene industrial yarn |
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Application publication date: 20130410 |