CN101050562A - Monofilament fiber in polyolefin class - Google Patents
Monofilament fiber in polyolefin class Download PDFInfo
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- CN101050562A CN101050562A CN 200710039893 CN200710039893A CN101050562A CN 101050562 A CN101050562 A CN 101050562A CN 200710039893 CN200710039893 CN 200710039893 CN 200710039893 A CN200710039893 A CN 200710039893A CN 101050562 A CN101050562 A CN 101050562A
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Abstract
The present invention discloses a kind of polyolefin fiber and its preparation method. Said polyolefin fiber is made up by using 70-95% of polyolefin resin, 3-25% of functional master batch and 0.1-10% of plastic processing adjuvant through the processes of melting, cooling, drawing and heat-setting etc.
Description
Technical field
The present invention relates to plastic optical fibre and preparation method, specifically a kind of TPO grass fiber and preparation method thereof.
Background technology
The development of chinampa comes from the limitation that natural grass changes weather conditions.Technological innovation along with the artificial grass filaments fiber, the mechanical property of chinampa, security performance and comfort property are near natural grass, therefore the range of application of chinampa also progressively expands to professional athletic ground, even International Football Union (FIFA) proposes and will will adopt chinampa at South Africa world cups in 2010.Simultaneously, FIFA has also proposed the evaluation criteria in football field, artificial motion lawn---chinampa quality notion (FIFA quality concept forartificial turf), and promote the authentication of chinampa place " FIFA recommends sign " since calendar year 2001.Up to the present, in 270 member states of the whole world 6 Da Qu, 106 place access authentications that have 19 companies to lay.Wherein, European artificial lawn, rank the highest (2 star) maximum by the quantity of authentication; There are 19 places in the Asia by low level (1 star) authentication, and Chinese none piece still is by the place of FIFA quality certification.Follow the proposition of International Football Union's chinampa quality notion, chinampa progressively replaces natural lawn becomes trend of the times.According to estimates, the chinampa use amount has reached more than 200,000,000 square metres in the world at present, and domestic application area is more than 1,500,000 square metres.
The artificial grass filaments fibrous material is the core material of chinampa, and its performance has determined mechanical property, security performance and the comfort property on lawn.At present, Ou Zhou artificial grass filaments industry is taken its place in the front ranks of the world.Dutch royal card covered with clouds group is maximum in the world artificial grass fibre manufacturer, and its Sai Erlong trade mark series of products can provide solution for the athletic ground surface layer of various ways.But at present, the research of artificial grass filaments concentrates on its application facet mostly, as profile (as USP 5462778, WO2005/005731), braiding, method for paving (as USP 4381805, USP 6491991, USP 6815059, USP 6955841, WO 01/0161110, WO 2005/124028) and the performance testing apparatus design aspects such as (as USP 6854316, USP 6962073) of artificial grass filaments, and rarely has report (as WO 2006/066777) for the key technology aspect of artificial grass filaments.
The artificial grass filaments fiber preparation method mainly is to melt extrude after raw materials such as matrix resin and functional form master batch are evenly mixed by screw extruder, and prepared such as stretched, typing, coiling form.Because need carrying high-intensity motion wearing and tearing and face harsh climate, the chinampa of outdoor use changes, the athletic ground also needs to have the sports safety performance with chinampa simultaneously, therefore the same with general-purpose plastics, the artificial grass filaments fibrous material faces subject matter and is how to improve its ageing resistace and antistatic property etc.Though patent WO 2006/066777 has mentioned the prescription and the mechanical property of artificial grass filaments fibrous material, and unresolved its ageing resistace and antistatic property.
Summary of the invention
Order of the present invention is a kind of TPO grass fiber that provides at the deficiencies in the prior art and preparation method thereof, and resulting grass fiber has good mechanical performance, ageing resistace and antistatic property.
The concrete technical scheme that realizes the object of the invention is:
A kind of TPO grass fiber, it is vistanex, functional form master batch, processing aid to be mixed after fusion, cooling, stretch, add the HEAT SETTING preparation and get, its each material content (by weight percentage) is:
A) vistanex 70～95%;
B) the functional form master batch 3～25%;
C) plastic processing additives 0.1～10%.
The method for preparing said polyolefins class grass fiber comprises the following steps:
(a) with vistanex, functional form master batch and processing aid, metering adds material bin after mixing in proportion, and melt extrudes through screw extruder;
(b) material after extruding enters tank cooling film forming, and after the godet roller marshalling, the cylinder that is increased progressively by a group or several groups of velocities of rotation stretches, and heats through one or several baking oven;
(c) after stretched, heat through one or several baking oven again, finalize the design by the cylinder that a group or several groups of velocities of rotation are successively decreased;
(d) after typing,, make chinampa TPO grass fiber again through oiling, reeling.
Described functional form master batch is with vistanex 30～75%, pigment 20～50%, and light stabilizer 1～15%, antioxidant 0.1～5%, antistatic additive 1～15%, dispersant 2～20%, plasticizer 0.2～5% is a raw material, through mixing, granulation and get.
Described plastic processing additives is a polymer silicone based, fluorinated.
Described screw extruder screw slenderness ratio is greater than 30, and melt extruding temperature is 180～260 ℃.
Described vistanex melt flow rate (MFR) remains on 0.3～8g/10min.
In the described drawing process, total drawing ratio is 3～12; Oven temperature is 80～140 ℃.
In the described type-approval process, total relaxation shrinkage is 4～10%.
Light stabilizer in the functional form master batch of the present invention comprises stabilizing agents such as salicylate class, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines; Antioxidant comprises amine, Hinered phenols, phosphite, thioester, natural basic antioxidant; Antistatic additive comprises quaternary ammonium salt, amine salt, phosphate, sulfonate, polyalcohol, polyol fatty acid ester, polyethylene glycol oxide additives, quatemay ammonium inner salt, propylamine hydrochlorate; Dispersant comprises fatty acid, aliphatic amide type, ester class, paraffin class, metallic soap class, low-molecular-weight wax class; Plasticizer comprises phthalic acid ester (DOP), fatty group dibasic acid, phosphate epoxide, trimellitate, petroleum ester, chloro-plasticizer and polymeric plasticiser.
TPO grass fiber through the present invention obtains has performances such as suitable mechanical property and good resistance are aging, antistatic.
Description of drawings
Accompanying drawing is preparation method's of the present invention flow chart
The specific embodiment
Consult accompanying drawing, method of the present invention is with raw materials such as vistanex and functional form master batch and processing aids, and metering adds material bin 1 after mixing in proportion, and melt extrudes through screw extruder 2; The melt extruded is gone into tank 4 cooling film forming through die head 3 is laggard, is stretched by godet roller 5 marshallings, the cylinder 6,8 that increased progressively by one group or several groups of velocities of rotation, and heats through one or several baking oven 7.According to the difference of instructions for use, grass fiber can be prepared into monofilament and fibrillation flat filament, uses the circle die head when wherein preparing monofilament, opens several monofilament holes on the circle die head; Use the flat-die head during preparation fibrillation flat filament, open a flat-die lip that size is suitable on the flat-die head, on godet roller 5, be equipped with the suitable blade of spacing simultaneously, so that flat film is cut into flat filament; During stretching, back roll is called draw ratio with the ratio of the speed of front roll, and total drawing ratio remains on 3～12; The temperature of stretch section baking oven 7 is 80～140 ℃; Again through after one or several baking oven 9 heats, finalized the design by the cylinder 10 that a group or several groups of velocities of rotation are successively decreased after the stretching, during typing, front and back drum speed difference becomes relaxation shrinkage with the ratio of the speed of front roll, and total relaxation shrinkage is controlled at 4～10%; Through oiling 11, reeling 12, finally make the TPO grass fiber again.
The invention will be further elaborated below by embodiment, its objective is better understanding content of the present invention; Therefore, protection scope of the present invention is not subjected to the restriction of embodiment:
80kg LLDPE, 20kg EVA, 13kg functional form master batch and 3kg processing aid are mixed the back add the screw extruder hopper, each section of screw extruder temperature is respectively: 200 ℃, and 210 ℃, 220 ℃, 220 ℃, 220 ℃, screw speed is 42.9rpm, adopts the circle die head to draw monofilament, total drawing ratio is 4.5, total relaxation shrinkage is 5.7%, and the drawing oven temperature is 120 ℃, and the typing oven temperature is 100 ℃.
The grass silk monfil TENSILE STRENGTH that makes is 11.43cN/Tex, and elongation at break is 118.48%, and percent thermal shrinkage is 1.63%, sheet resistance 3.7 * 10
9Ω, press the aging 3000h of ASTM G 154 standards after, the TENSILE STRENGTH of grass fiber is 10.07cN/Tex, elongation at break is 105.81%, percent thermal shrinkage is 1.17%.
435g PP, 50kg functional form master batch and 15kg processing aid are mixed the back add the screw extruder hopper, each section of screw extruder temperature is respectively: 240 ℃, and 250 ℃, 260 ℃, 260 ℃, 260 ℃, screw speed is 35.2rpm, adopts towing of flat-die head flat filament, total drawing ratio is 4.7, total relaxation shrinkage is 4.84%, and the drawing oven temperature is 130 ℃, and the typing oven temperature is 115 ℃.
The grass silk fibrillation flat filament tensile strength of fiber that makes is 11.85cN/Tex, and elongation at break is 76.63%, and percent thermal shrinkage is 0.94%, sheet resistance 2.2 * 10
10Ω, press the aging 3000h of ASTM G 154 standards after, the TENSILE STRENGTH of grass fiber is 10.07cN/Tex, elongation at break is 68.74%, percent thermal shrinkage is 0.83%.
Claims (8)
1, a kind of TPO grass fiber is characterized in that it is vistanex, functional form master batch, processing aid to be mixed after fusion, cooling, stretch, add the HEAT SETTING preparation and get, and its each material content (by weight percentage) is:
A) vistanex 70～95%;
B) the functional form master batch 3～25%;
C) plastic processing additives 0.1～10%.
2, a kind of method for preparing the described TPO grass fiber of claim 1, it comprises the following steps: to it is characterized in that this side
(a) with vistanex, functional form master batch and processing aid, metering adds material bin after mixing in proportion, and melt extrudes through screw extruder;
(b) material after extruding enters tank cooling film forming, and after the godet roller marshalling, the cylinder that is increased progressively by a group or several groups of velocities of rotation stretches, and heats through one or several baking oven;
(c) after stretched, heat through one or several baking oven again, finalize the design by the cylinder that a group or several groups of velocities of rotation are successively decreased;
(d) after typing,, make chinampa TPO grass fiber again through oiling, reeling.
3, TPO grass fiber according to claim 1, it is characterized in that described functional form master batch is with vistanex 30～75%, pigment 20～50%, light stabilizer 1～15%, antioxidant 0.1～5%, antistatic additive 1～15%, dispersant 2～20%, plasticizer 0.2～5% is a raw material, through mixing, granulation and get.
4, TPO grass fiber according to claim 1 is characterized in that described plastic processing additives is a polymer silicone based, fluorinated.
5, method according to claim 2 is characterized in that described screw extruder screw slenderness ratio is that melt extruding temperature is 180～260 ℃ greater than 30.
6, method according to claim 2 is characterized in that described vistanex melt flow rate (MFR) remains on 0.3～8g/10min.
7, method according to claim 2 is characterized in that in the described drawing process that total drawing ratio is 3～12; Oven temperature is 80～140 ℃.
8, method according to claim 2 is characterized in that in the described type-approval process, and total relaxation shrinkage is 4～10%.
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| CN106702508A (en) * | 2016-11-22 | 2017-05-24 | 殷石 | Method for preparing high strength synthetic fibers by sectional drafting at high temperature |
| CN106637447A (en) * | 2016-11-22 | 2017-05-10 | 殷石 | Method for preparing high-strength synthetic fibers via multi-pass high-temperature segment-based drafting |
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Assignee: Shandong Taishan artificial lawn industry Co., Ltd. Assignor: East China University of Science and Technology Contract record no.: 2010370000330 Denomination of invention: Monofilament fiber in polyolefin class Granted publication date: 20090610 License type: Exclusive License Open date: 20071010 Record date: 20100607 |
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