CN109477249A

CN109477249A - The artificial turf of tufting lock with improvement

Info

Publication number: CN109477249A
Application number: CN201680086664.1A
Authority: CN
Inventors: B·博纳乌格里亚; D·洛佩兹; R·维沃斯
Original assignee: Dow Global Technologies LLC
Current assignee: Dow Global Technologies LLC
Priority date: 2016-06-30
Filing date: 2016-10-27
Publication date: 2019-03-15
Anticipated expiration: 2036-10-27
Also published as: ES2867202T3; US20190309487A1; EP3263749A1; JP2019521259A; EP3478880A1; AR108931A1; EP3478880B1; WO2018004722A8; KR20190025629A; JP6920356B2; WO2018004722A1; BR112018075331B1; CN109477249B; BR112018075331A2

Abstract

Embodiment of the disclosure be related to include non-functionalized and at least one functionalized polymeric elongate filaments.The functionalized polymeric is plastic body or elastomer based on propylene, and the plastic body or elastomer have the one or more functional groups being grafted on the plastic body or elastomer based on propylene.The group that one or more of functional groups select free amino and imide to form.At least one functionalized polymeric has 100 DEG C to 130 DEG C of DSC fusing point.When the elongate filaments are stretched to draw ratio 5, the elongate filaments have the toughness greater than 0.90cN/dtex.

Description

The artificial turf of tufting lock with improvement

Cross reference to related applications

It is described this application claims the priority for the European Patent Application No. 16382313.1 submitted on June 30th, 2016 Application is hereby incorporated by reference in its entirety by reference.

Technical field

Embodiments of the present disclosure relate generally to elongate filaments, the product comprising elongate filaments and its manufactures.

Background technique

Synthesis or artificial turf are increasingly being used as the substitute of natural sod, are used for sport field, recreation ground, scape See beautification and other leisure application.In order to produce artificial turf, turf yarn can be squeezed out, and then passes through main backing cluster Suede.The second backing can be applied so that turf yarn " gluing " is arrived main backing.

During the service life of artificial turf, yarn and backing are subjected to continuous stress.The durability of artificial turf is in very great Cheng The adhesiveness between yarn and backing is depended on degree.For example, if poor adhesion between yarn and backing, due to stress Yarn filament is caused to fall off from backing, this may make the region of artificial turf not have yarn.

Therefore, it is necessary to have the alternative artificial turf yarn of adhesiveness of improvement and/or artificial between yarn and backing Turf.

Summary of the invention

Elongate filaments are disclosed in the embodiments herein.Elongate filaments include at least one functionalized polymeric and non-functional Change the blend of polyolefin.The functionalized polymeric is plastic body or elastomer based on propylene, the plastic body or elasticity Body has the one or more functional groups being grafted to thereon, and with 100 DEG C to 130 DEG C of differential scanning calorimetry (DSC) Fusing point.The group that one or more of functional groups select free amino and imide to form.When the elongate filaments are stretched to When stretching than 5, the elongate filaments have the toughness greater than 0.90cN/dtex.Various embodiments described herein shows stretching The adhesiveness improved between long filament and Polyurethane backings, such as will be described in more detail below.It is without being bound by theory, it is believed that official Energy fluidized polymer enhances polarity, therefore increases the adhesiveness of long filament and Polyurethane backings.

Artificial turf is even further disclosed in the embodiments herein.The artificial turf includes main backing, auxiliary back Lining and at least one elongate filaments.The elongate filaments include being total at least one functionalized polymeric and non-functionalized Mixed object.The functionalized polymeric is plastic body or elastomer based on propylene, and the plastic body or elastomer, which have, to be grafted to One or more functional groups thereon, and with 100 DEG C to 130 DEG C of DSC fusing point.One or more of functional groups are selected from The group being made of amido and imide.When the elongate filaments are stretched to draw ratio 5, the elongate filaments, which have, to be greater than The toughness of 0.90cN/dtex.

The additional feature and advantage of embodiment will be illustrated in the following detailed description, and in certain journey On degree, from specific embodiment or by practice, embodiment described herein, feature and advantage by the technology to this field Personnel are apparent or are realized, the embodiment of the description include following specific embodiment, claims and Attached drawing.

It should be understood that it is aforementioned and be described below and both describe various embodiments, and be intended to provide required for understanding Protect general introduction or the frame of the property and feature of theme.Various embodiments are further understood with providing comprising attached drawing, and It is incorporated in this specification and forms part of this specification.Attached drawing shows various embodiments described herein, and with Embodiment is used to explain the principle and operation of claimed subject together.

Detailed description of the invention

Figure 1A is illustrated can be used for producing elongate filaments according to one or more embodiments shown and described herein Exemplary monofilament extrusion line；

Figure 1B is illustrated can be used for producing elongate filaments according to one or more embodiments shown and described herein Exemplary Collins's fibre spinning line；And

Fig. 2 illustrates the cross-sectional view of the artificial turf according to one or more embodiments shown and described herein.

Specific embodiment

The embodiment of artificial turf with detailed reference to elongate filaments and comprising elongate filaments now, feature is in the accompanying drawings It shows.As used herein, " long filament " refers to monofilament, multifilament, extrusion film, fiber, yarn, such as example band yarn, fibrillation band yarn, It cuts film yarn, continuous band and/or is used to form the other fibrous materials for synthesizing the strand of blade of grass piece or artificial turf field.

Elongate filaments

Elongate filaments as described herein are by the blend including at least one functionalized polymeric and non-functionalized It is formed.Term " blend " refers to the close physical mixture (that is, not reacting) of two or more polymer.Blend can It is miscible, or can is unmixing (on a molecular scale without mutually separating).Blend can for mutually separate or can not be phase Separation.As determined by transmission electron spectroscopy, light scattering, x-ray scatter and other methods as known in the art, altogether Mixed object may or may not contain one or more domain configurations.It can be by macroscopic scale (such as melt blending resin Or mixture) or microscopic scale (such as being formed simultaneously in same reactor) on described two or more the polymer of physical mixed To realize blend.As used herein, term " non-functionalized " refers to the polyolefin without graft.Specifically, In this case, the polymer based on " nonfunctionalized " ethylene is only to have ethylene and another comonomer (for example, third Alkene, octene, hexene, butylene etc.) resin and do not suffer from the polymer of the second step being functionalized using another component. In various embodiments, functionalized polymeric is plastic body or elastomer based on propylene, and the plastic body or elastomer have It is grafted to one or more functional groups thereon.Functional group can be such as amido or imide.The functionalized polymeric tool There is 100 DEG C to 130 DEG C of DSC fusing point.When the elongate filaments are stretched to draw ratio 5, the elongate filaments, which have, to be greater than The toughness of 0.9cN/dtex.

Non-functionalized

It as example rather than limits, non-functionalized may include nonfunctionalized polyethylene or nonfunctionalized poly- third Alkene.Term " polyethylene " refer to containing the polymerizing ethylene monomer (in terms of the total amount of polymerisable monomer) for having more than percent 50 weight with And it can optionally contain the polymer of at least one comonomer.Any suitable technology measurement comonomer can be used to contain Amount is such as based on the technology of nuclear magnetic resonance (" NMR ") spectroscopic methodology, and, for example, by such as United States Patent (USP) 7, described in 498,282¹³C NMR analysis, the patent are incorporated herein by reference.

Suitable polyethylene may include Alathon, ethylene and at least one comonomer copolymer and it is total Mixed object.As used herein, term " copolymer " includes the polymer being made of two or more different monomers, includes trimerization Body, tetramer etc..In various embodiments, polyethylene includes more than or equal to the unit of derived from ethylene of 70wt.% and small In or equal to 30wt.% be derived from unit of one or more alpha-olefin comonomers.In some embodiments, polyethylene packet Include (a) be greater than or equal to 70% by weight, more than or equal to 75%, more than or equal to 80%, more than or equal to 85%, be greater than Or equal to 90%, more than or equal to 92%, more than or equal to 95%, more than or equal to 97%, more than or equal to 98%, be greater than or Equal to 99%, more than or equal to 99.5%, 70% to 99.5%, 70% to 99%, 70% to 97%, 70% to 94%, 80% To 99.5%, 80% to 99%, 80% to 97%, 80% to 94%, 80% to 90%, 85% to 99.5%, 85% to 99%, 85% to 97%, 88% to 99.9%, 88% to 99.7%, 88% to 99.5%, 88% to 99%, 88% to 98%, 88% To 97%, 88% to 95%, 88% to 94%, 90% to 99.9%, 90% to 99.5%, 90% to 99%, 90% to 97%, 90% to 95%, 93% to 99.9%, 93% to 99.5%, 93% to 99% or 93% to 97% derived from ethylene monomer Unit；And (b) optionally, be less than or equal to 30% by weight, be, for example, less than 25% or less than 20%, less than 18%, Less than 15%, less than 12%, less than 10%, less than 8%, less than 5%, less than 4%, less than 3%, less than 2%, less than 1%, 0.1 to 20%, 0.1 to 15%, 0.1 to 12%, 0.1 to 10%, 0.1 to 8%, 0.1 to 5%, 0.1 to 3%, 0.1 to 2%, 0.5 to 12%, 0.5 to 10%, 0.5 to 8%, 0.5 to 5%, 0.5 to 3%, 0.5 to 2.5%, 1 to 10%, 1 to 8%, 1 arrives 5%, 1 to 3%, 2 to 10%, 2 to 8%, 2 to 5%, 3.5 to 12%, 3.5 to 10%, 3.5 to 8%, 3.5% to 7% or 4 Unit of one or more alpha-olefin comonomers is derived to 12%, 4 to 10%, 4 to 8% or 4 to 7%.

Suitable comonomer may include alpha-olefin comonomer, usually has and is no more than 20 carbon atoms.Described one Kind or a variety of alpha-olefins can be selected from by C₃-C₂₀Acetylene series unsaturated monomer and C₄-C₁₈The group of alkadienes composition.Those skilled in the art Member will be understood that selected monomer is preferably those monomers for not destroying Conventional Ziegler-Natta catalyst.For example, α-alkene Hydrocarbon comonomer can have 3 to 10 carbon atoms or 3 to 8 carbon atoms.Exemplary alpha-olefin comonomer includes but unlimited In propylene, 1- butylene, 1- amylene, 1- hexene, 1- heptene, 1- octene, 1- nonene, 1- decene and 4-methyl-1-pentene.Described one Kind or a variety of alpha-olefin comonomers can be for example selected from the groups being made of propylene, 1- butylene, 1- hexene and 1- octene；Or In alternative, selected from the group being made of 1- butylene, 1- hexene and 1- octene.In some embodiments, polyethylene includes big One of octene, hexene or butene comonomer or a variety of units are derived from 0wt.% and less than 30wt.%.

Polyethylene can be prepared according to any suitable polymerization process, be urged including but not limited in metallocene, constrained geometry Solution, slurry or gas-phase polymerization mistake in the presence of agent system, Ziegler-Natta catalyst or diphenyl benzene phenol catalyst system Journey.Solution, slurry or gas-phase polymerization can carry out in single reactor, or alternatively in two reactor system into Row, wherein produces identical product in each of double-reactor.It has found in U.S. Patent number 9,255,160 about more The disclosure of the information of metallic catalyst made and used, the patent is hereby incorporated by reference in its entirety by reference.

In the embodiments herein, polyethylene can be further characterized one of following property or a variety of: melt Index (I₂), melt flow ratio (Iio/I₂) or density, as described earlier in this article.It is without being bound by theory, with melt index (MI) (I₂)、 Melt flow ratio (Iio/I₂) or the polyethylene that is characterized of density may be particularly suitable for being blended with other filament components and/or squeeze Out.For example, having melt index (MI) may be in terms of obtaining the homogeneous blend for extrusion in the polymer except particular range Show difficulty.

Suitable polymer may include such as high density polyethylene (HDPE) (HDPE), linear low density polyethylene (LLDPE), surpass The linear ethylene of low density polyethylene (LDPE) (ULDPE), the linear tetrafluoroethylene polymer of homogeneous branch and substantially homogeneous branch polymerize Object (the long chain branch ethene polymers of i.e. homogeneous branch).In some embodiments, polyethylene LLDPE.LLDPE is with LLDPE Total weight include with the ethylene of the main by weight percentage of polymerized form.In embodiment, LLDPE is ethylene and at least one The copolymer of kind ethylenic bond unsaturated comonomer.In one embodiment, comonomer C₃-C₂₀Alpha-olefin.At another In embodiment, comonomer C₃-C₈Alpha-olefin.In another embodiment, C₃-C₈Alpha-olefin is selected from propylene, 1- butylene, 1- Hexene or 1- octene.In embodiment, LLDPE be selected from following copolymer: ethylene/propene copolymer, ethylene/butylene copolymers, Ethylene/hexene copolymer and ethylene/octene.In a further embodiment, LLDPE is ethylene/octene.It closes The commercial embodiments of the suitable copolymer based on ethylene are included in trade name ATTANE^TM、AFFINITY^TM、DOWLEX^TM、ELITE^TM、 ELITE AT^TMAnd INNATE^TMIt is lower sale those of, it is all can be from Dow Chemical (The Dow Chemical Company) (Midland, MI) is obtained；It can be obtained from Total SA；And EXCEED^TMAnd EXACT^TMIt can be from Exxon chemical company (Exxon Chemical Company) obtains.

In the embodiments herein, the density of polyethylene can be 0.900g/cc to 0.950g/cc.Include and openly herein All individual values and subrange of at least 0.900g/cc to 0.950g/cc.For example, in some embodiments, polyethylene Density be 0.900 to 0.945g/cc, 0.900 to 0.940g/cc, 0.900 arrive 0.935g/cc, 0.910g/cc to 0.945g/ 0.940g/cc, 0.915 are arrived in cc, 0.910 to 0.940g/cc, 0.910 to 0.935g/cc, 0.910 to 0.930g/cc, 0.915 To 0.923g/cc or 0.920g/cc to 0.935g/cc.Density can be measured according to ASTM D792.

In the embodiments herein, polyethylene, which can have, to be measured at 190 DEG C and 2.16kg according to ASTM D1238 The melt index (MI) I of 0.1g/10min to 10g/10min₂.Include herein and discloses at least 0.1g/10min to 10g/10min All individual values and subrange.Example for example, in some embodiments, the melt index (MI) I of polyethylene₂It can be 0.1g/10min To 9.5g/10min, 0.1g/10min to 9.0g/10min, 0.1g/10min to 5g/10min, 0.5g/10min to 6g/ 10min, 1g/10min to 5g/10min, 1.5g/10min to 4.5g/10min or 2g/10min to 4g/10min.In other realities It applies in example, the melt index (MI) I of polyethylene₂Can for 0.7g/10min to 9.5g/10min, 0.7g/10min to 8g/10min or 0.7g/10min to 5g/10min.Melt index (MI) I can be measured according to ASTM D1238 (190 DEG C and 2.16kg)₂。

In the embodiments herein, polyethylene can have the melt flow ratio I less than 14₁₀/I₂.Include and openly herein All single values and subrange less than 14.For distance, in some embodiments, the melt flow ratio I of polyethylene₁₀/I₂ It may be less than 13.5,13,12.5,10 or even 7.5.In other embodiments, the melt flow ratio I of polyethylene₁₀/I₂Can be 1.0 to 14,2 to 14,4 to 14,5 to 14,5.5 to 14,6 to 14,5 to 13.5,5 to 13,5 to 12.5,5 to 12,5 to 11.5,5 It is arrived to 11,5.5 to 13.5,5.5 to 13,5.5 to 12.5,5.5 to 12,5.5 to 11.5,5.5 to 11,6 to 13.5,6 to 13,6 12.5,6 to 12,6 to 11.5 or 6 to 11.Melt index (MI) I can be measured according to ASTM D1238 (190 DEG C and 10.0kg)₁₀。

In other embodiments, non-functionalized includes polypropylene.Term " polypropylene ", which refers to contain, has more than 50 weights It measures the polymerizing propylene monomer (in terms of the total amount of polymerisable monomer) of % and can optionally contain at least one comonomer Polymer.Suitable polypropylene may include Noblen, propylene and at least one comonomer copolymer and it is total Mixed object.In the embodiments herein, polypropylene can be Noblen, propylene copolymer or combinations thereof.Polypropylene homopolymer can For isotaxy, atactic or syndyotactic.In some embodiments, polypropylene is isotactic polypropylene homo Object.In other embodiments, polypropylene is propylene/α-olefin copolymer.Propylene/α-olefin copolymer can be random or block , or impact polypropylene copolymer.Impacting polypropylene copolymer can also include heterophasic polypropylene copolymers, and wherein polypropylene is Continuous phase and elastomer phase is uniformly dispersed therein.

In various embodiments, polypropylene includes being greater than the unit of the derived from propylene of 50wt.% and less than 30wt.%'s Derived from one or more C₂Or C_4-2The unit of o alpha-olefin comonomer.In some embodiments, polypropylene is included (a) by weight Meter is greater than or equal to 55%, for example, be greater than or equal to 60%, more than or equal to 65%, more than or equal to 70%, be greater than or wait In 75%, more than or equal to 80%, more than or equal to 85%, more than or equal to 90%, more than or equal to 92%, be greater than or equal to 95%, it is arrived more than or equal to 97%, more than or equal to 98%, more than or equal to 99%, more than or equal to 99.5%, greater than 50% 99%, be greater than 50% to 97%, be greater than 50% to 94%, be greater than 50% to 90%, 70% to 99.5%, 70% to 99%, 70% to 97%, 70% to 94%, 80% to 99.5%, 80% to 99%, 80% to 97%, 80% to 94%, 80% arrives 90%, it 85% to 99.5%, 85% to 99%, 85% to 97%, 88% to 99.9%, 88% to 99.7%, 88% arrives 99.5%, 88% to 99%, 88% to 98%, 88% to 97%, 88% to 95%, 88% to 94%, 90% to 99.9%, 90% to 99.5%, 90% to 99%, 90% to 97%, 90% to 95%, 93% to 99.9%, 93% to 99.5%, 93% To the unit of 99% or 93% to 97% derived from propylene；And (b) optionally, it is, for example, less than less than 30% by weight 25% or less than 20%, less than 18%, less than 15%, less than 12%, less than 10%, less than 8%, less than 5%, less than 4%, Less than 3%, less than 2%, less than 1%, 0.1 to 20%, 0.1 to 15%, 0.1 to 12%, 0.1 to 10%, 0.1 to 8%, 0.1 It is arrived to 5%, 0.1 to 3%, 0.1 to 2%, 0.5 to 12%, 0.5 to 10%, 0.5 to 8%, 0.5 to 5%, 0.5 to 3%, 0.5 2.5%, 1 to 10%, 1 to 8%, 1 to 5%, 1 to 3%, 2 to 10%, 2 to 8%, 2 to 5%, 3.5 to 12%, 3.5 to 10%, 3.5 to 8%, 3.5% to 7% or 4 to 12%, 4 to 10%, 4 to 8% or 4 to 7% are derived from one or more C₂Or C_4- ₂The unit of o alpha-olefin comonomer.

Suitable comonomer may include C₂Or C_4-2O alpha-olefin comonomer.One or more alpha-olefin copolymers Monomer can have 2 carbon atoms or 4 to 20 carbon atoms, C₂Or C_4-i8、C₂Or C_4-Io or C₂Or 4 to 8 carbon atoms.Show Example property alpha-olefin comonomer including but not limited to ethylene, 1- butylene, 1- amylene, 1- hexene, 1- heptene, 1- octene, 1- nonene, 1- decene and 4-methyl-1-pentene.The one or more alpha-olefin comonomers can for example select free ethylene, 1- butylene, The group of 1- hexene and 1- octene composition.In some embodiments, polypropylene includes greater than 0wt.% and less than the derivative of 30wt.% From one of octene, hexene, butylene or ethylene comonomer or a variety of units.

It can be used and any prepare polypropylene for polypropylene and optionally a kind of method of comonomer.For example, Gas phase, ontology or slurry phase, polymerisation in solution or any combination thereof can be used.Polymerization can be at least one polymer reactor The polymerization process in the stage or two or more stages that carry out.For the process in two or more stages, can be used not Same combination, such as gas-gas phase, slurry-slurry phase, slurry-gas phase process.Suitable catalyst may include Ziegler-and receive Tower catalyst, single-site catalysts (metallocene or constrained geometry) or Nonmetallocene, metal center, iso-aryl ligand catalyst or A combination thereof.Exemplary polypropylene polymer may include metallocene polypropylene, such as can be from exxonmobil chemical company The ACHIEVE that (ExxonMobil Chemical Company) is obtained3584 and can be from ultimate survey and technology Feluy The LUMICENE that (Total Research&Technology Feluy) is obtainedMR 2001；And ziegler-nata poly- third The HG475FB that can such as obtain from Borealis AG, alkene can control interest from Ivan Lendl-Basel's industry, B.V. (Lyondell Basell Industries Holdings, B.V.) obtain MOPLENHP2814, can be from Saudi Basic Industries Corporation The Sabic518A that (Saudi Basic Industries Corporation) is obtained.

In the embodiments herein, polypropylene can be further characterized one of following property or a variety of: melt Flow rate (MFR₂), melt flow ratio (MFRio/MFR₂) or density, as described herein.

In the embodiments herein, the polymer based on propylene can have about 0.890g/cc to the close of about 0.910g/cc Degree.Include herein and discloses all individual values and subrange of at least 0.890g/cc to 0.910g/cc.For example, in some realities It applies in example, polyethylene has 0.890 to 0.905g/cc, 0.890 to 0.900g/cc, 0.890 to 0.895g/cc, 0.895 to arrive The density that 0.910g/cc or 0.905 arrives 0.910g/cc is arrived in 0.910g/cc, 0.900.Density can be measured according to ASTM D792.

In the embodiments herein, when being measured under 230 DEG C and 2.16kg according to ASTM D1238, polypropylene can have There is the melt flow rate (MFR) MFR of 0.5g/10min to 25g/10min₂.Include herein and discloses at least 0.5g/10min and arrive All individual values and subrange of 25g/10min.For example, in some embodiments, polypropylene can have 0.5g/10min and arrive 22.5g/10min, 0.5g/10min to 20g/10min, 0.5g/10min to 15g/10min, 0.5g/10min to 10g/ The melt flow of 10min, 1g/10min to 10g/10min, 1.5g/10min to 10g/10min or 3g/10min to 10g/10min Dynamic rate MFR₂.In one embodiment, when measuring under 230 DEG C and 2.16kg, polypropylene can have 2.0g/10min To the melt flow rate (MFR) MFR of 4.0g/10min₂.Melt flows can be measured according to ASTM D 1238 (230 DEG C and 2.16kg) Rate MFR₂。

In the embodiments herein, polypropylene can have the melt flow ratio MFRio/MFR less than 10₂.Include herein And disclose all single values and subrange less than 10.For example, in some embodiments, polypropylene can have less than 10,9 Or even 7 melt flow ratio MFRio/MFR₂.In other embodiments, polypropylene can have 1.0 to 10,2 to 9 or 3 to 7 Melt flow ratio MFRio/MFR₂.Melt flow rate (MFR) can be measured according to ASTM D 1238 (230 DEG C and 10.0kg) MFRio。

Functionalized polymeric

As described above, elongate filaments as described herein further include at least one functionalized polymeric.In various implementations In example, functionalized polymeric has plastic body based on propylene or elastomer as its base polymer, and quilt herein Referred to as plastic body or elastomer based on propylene, and there are the one or more functional groups being grafted to thereon.Implement at one In example, at least one functionalized polymeric is by plastic body or the polymer that is formed of elastomer based on propylene, the plastic body Or elastomer has at least one organic compound selected from " amine-containing compound " being grafted to thereon or " containing imide compound " Object.As used herein, term " amine-containing compound " refers to the compound including at least one amido.As used herein, term " contains Imide compound " refers to the compound including at least one imide.

In the embodiments described herein, the plastic body based on propylene or elastomer be propylene/ethylene copolymer or propylene/ C₄- C2o alpha olefin copolymer.In one embodiment, the plastic body based on propylene or elastomer are propylene/ethylene copolymer. In another embodiment, the plastic body based on propylene or elastomer are propylene/C₄- C2o alpha olefin copolymer or C₄-Cioα- Alkene or C₄-C₈Alpha-olefin.In another embodiment, alpha-olefin is selected from the group that is made up of: ethylene, 1- butylene, 1- oneself Alkene and 1- octene.Plastic body or elastomer based on propylene include at least the unit of the derived from propylene of 60wt.% and 1 with The unit of derived from ethylene between 40wt.% (in terms of the total amount of polymerisable monomer).Include herein and discloses at least All single values of the unit of derived from ethylene between the unit and 1 and 40wt.% of the derived from propylene of 60wt.% and sub- model It encloses.It is greater than or equal to 60% by weight for example, the plastic body based on propylene or the polymer based on elastomer may include, is big In or equal to 65%, more than or equal to 70%, more than or equal to 75%, more than or equal to 80%, more than or equal to 85%, be greater than Or equal to 90%, more than or equal to 92%, more than or equal to 95%, more than or equal to 97%, more than or equal to 98%, be greater than or Equal to 99%, more than or equal to 99.5%, greater than 60% to 99%, greater than 60% to 97%, greater than 60% to 94%, be greater than 60% to 90%, 70% to 99.5%, 70% to 99%, 70% to 97%, 70% to 94%, 80% to 99.5%, 80% arrives 99%, 80% to 97%, 80% to 94%, 80% to 90%, 85% to 99.5%, 85% to 99%, 85% to 97%, 88% It is arrived to 99.9%, 88% to 99.7%, 88% to 99.5%, 88% to 99%, 88% to 98%, 88% to 97%, 88% 95%, it 88% to 94%, 90% to 99%, 90% to 99%, 90% to 99%, 90% to 97%, 90% to 95%, 93% arrives 99%, the unit of 93% to 99%, 93% to 99% or 93% to 97% derived from propylene；And (b) optionally, by weight Meter less than percent 40, be, for example, less than 40%, less than 35%, less than 30%, less than 25% or less than 20%, less than 18%, Less than 15%, less than 12%, less than 10%, less than 8%, less than 5%, less than 4%, less than 3%, less than 2%, 1 to 20%, 1 To 15%, 1 to 12%, 1 to 10%, 1 to 8%, 1 to 5%, 1 to 3%, 1 to 2%, 2 to 10%, 2 to 8%, 2 to 5%, 3.5 To being derived from for 12%, 3.5 to 10%, 3.5 to 8%, 3.5% to 7% or 4 to 12%, 4 to 10%, 4 to 8% or 4 to 7% The unit of ethylene.

Elastomer or plastic body based on functionalized propylene have the density of 0.850g/cc to 0.930g/cc.Another In a embodiment, propylene/α-olefin copolymer has the density of 0.870g/cc to 0.930g/cc.In another embodiment, Propylene/α-olefin copolymer has the melt flow rate (MFR) of 1g/10min to the 20g/10min measured under 230 DEG C and 2.16kg MFR₂。

In another embodiment, elastomer or plastic body based on functionalized propylene are propylene/ethylene copolymer.? In further embodiment, propylene/ethylene copolymer has 0.850g/cc to 0.930g/cc or 0.870g/cc to 0.930g/ The density of cc.In another embodiment, propylene/ethylene copolymer has according to ASTM D1238 under 230 DEG C and 2.16kg Melt flow rate (MFR) (the MFR of 1g/10min to the 20g/10min of measurement₂).In the embodiments herein, propylene/ethylene copolymerization Object has the ethylene contents less than about 5wt.%.In another embodiment, propylene/ethylene copolymer, which has, is less than about 4wt.% Ethylene contents.For example, propylene/ethylene copolymer can have greater than about 0wt.% to the ethylene contents of about 5wt.%, include The subrange of all single values and greater than about 0wt.% to about 5wt.%.In embodiment, propylene/ethylene copolymer has 0.001wt.% to 5wt.%, 0.01wt.% to 5wt.%, 0.1wt.% to 5wt.%, 0.001wt.% to 4wt.%, 0.01wt.% to 4wt.%, 0.1wt.% to 4wt.%, 0.1wt.% to 3.5wt.%, 0.1wt.% to 3wt.%, The ethylene contents of 0.1wt.% to 2.5wt.% etc., various methods are determined for ethylene contents, including but not limited to quality EQUILIBRIUM CALCULATION FOR PROCESS and FTIR.

In various embodiments, at least one plastic body or elastomer based on functionalized propylene has about 100 DEG C and arrives About 130 DEG C or about 110 DEG C to about 120 DEG C differential scanning calorimetry (DSC) fusing point.As measured by DSC, various implementations The plastic body based on functionalized propylene or elastomer of example have less than or equal to 30% or are less than or equal to 25% or small In or equal to 22.5% percent crvstallinity.In some embodiments, as measured by DSC, it is based on functionalized third The plastic body or elastomer of alkene have about 10% to about 30% percent crvstallinity, include 10% to 30% all single values And subrange.It can be may include with the functionalized plastic body suitably based on propylene or elastomer, as example rather than be limited, VERSIFY that can be commercially available from Dow Chemical (Midland, MI)^TM 3000。

The method for preparing functionalized polymeric

In various embodiments, by will " amine reactivity " group be grafted on the plastic body or elastomer based on propylene with Formed the propylene based on grafting plastic body or elastomer, and then make the propylene based on grafting plastic body or elastomer with " amine-containing compound " or " containing imide compound " reaction, forms at least one functionalized polymeric.

For example, in embodiment, at least one functionalized polymeric is formed by the process included the following steps: 1) will include At least one compound of at least one " amine reactivity " group is grafted on the main chain of the plastic body based on propylene or elastomer, To form the plastic body or elastomer of the propylene based on grafting；2) make primary-secondary diamines and the propylene based on grafting plastic body or Elastic precursor reactant；And 3) wherein step 2) carries out after step 1), does not separate the plastic body or bullet of the propylene based on grafting Property body (that is, removing base from the solution of the compound containing plastic body or elastomer containing amine reactive group and based on propylene In the plastic body or elastomer of the propylene of grafting), and two of them step carries out in frit reaction.Art as used Language " amine reactive group " refers to the chemical group or chemical part that can be reacted with amido.Amine reactive group includes but unlimited In maleic anhydride, acrylic acid, methacrylic acid, glycidyl acrylate, glycidyl methacrylate.

As used herein, term " primary-secondary diamines " refers to the diamines being made of primary amine and secondary amine.Suitable primary-secondary diamines Compound comprising structure (I):

H₂N—R₁—NH—R₂ (I)。

In structure (I), Ri is bivalent hydrocarbon radical, and preferably formula-(CH₂)_n- straight-chain hydrocarbons, wherein n is greater than or waits In 2, n be 2 to 10,2 to 8 or even 2 to 6.R₂For the monovalent hydrocarbon containing at least two carbon atom, and optionally can be with Replaced by the hetero atom containing group, such as OH or SH.In embodiment, R₂For formula-(CH₂)_nCH₃Straight-chain hydrocarbons, wherein n be 1 To 10,1 to 9,1 to 7 or even 1 to 5.In embodiment, primary-secondary diamines is selected from the group being made up of: N- ethyl second two Amine, N- phenylethylenediamine, N- phenyl -1,2- phenylenediamine, N- phenyl -1,4- phenylenediamine and N- (2- ethoxy)-ethylenediamine.

In another embodiment, plastic body or elastomer based at least one functionalized propylene include and are based on propylene Plastic body or elastomer main chain covalent bonding following functional group:

Wherein " NR₁NHR₂" can be derived from selected from by with the primary-secondary diamines of the group of the compound of flowering structure (I):

H₂N-R₁-NH-R₂(1),

Wherein Ri is bivalent hydrocarbon radical, selected from the group being made up of: alkylidene or phenylene, such as passes through example rather than limits System ,-CH₂CH₂, p-phenylene or o- phenylene-, and R₂For the monovalent hydrocarbon containing at least two carbon atom, and appoint Selection of land can be replaced by the hetero atom containing group, such as alkyl or aryl.In embodiment, alkyl or aryl is ethyl or benzene Base.

In another embodiment, at least one functionalized polymeric is formed by the process included the following steps: 1) with extremely A kind of few plastic body or elastomer of the compound functionalization based on propylene for including at least one " amine reactivity " group is to form The plastic body or elastomer of propylene based on grafting；2) by the plastic body or bullet of the propylene based on grafting of the non-melt form of solid Property body be blended at least one primary-secondary diamines；3) primary-secondary diamines is absorbed into the plastic body or elastomer of the propylene based on grafting In；4) make the plastic body or elastic precursor reactant of primary-secondary diamines and the propylene based on grafting, to be formed based on acid imide functionalization third The plastic body or elastomer of alkene.Used term " absorption " and similar terms refer to that wherein it is solid to be adsorbed to polymer for compound Process in body, particle, pellet or product.More particularly, first with the group functionalization's polyolefin reacted with amine functional group, such as Anhydride group.Lower than polyolefin fusing point at a temperature of at least one diamines mixed with functionalised polyolefin.In some implementations In example, temperature is room temperature, although it is envisaged that other temperature.Diamines is allowed to adsorb or be absorbed into polyolefin, and and diamine reactant Property group reacts to form succinamic acid.It then, such as during melt extrusion, can be with by being heat-treated to mixture Diamines and diamine reactant functional group reactions are completed to form imide ring.Absorption process helps to ensure that diamines is filled with polyolefin Divide mixing, to realize effective functionalization.

In another embodiment, at least one functionalized polymeric is formed by the process included the following steps: 1) will packet At least one compound for including at least one " amine reactivity " group is grafted to the main chain of plastic body or elastomer based on propylene On, to form the plastic body or elastomer of the propylene based on grafting；2) make the plastic body of alkanolamine Yu the propylene based on grafting Or elastic precursor reactant；And wherein step 2) carries out after step 1), does not separate the plastic body or bullet of the propylene based on grafting Property body, and wherein step 1) and 2) both carried out in frit reaction.

In a further embodiment, alkanolamine is selected from the group being made up of: 2- ethylaminoethanol, 2- amino -1- third Alcohol, 3- amino -1- propyl alcohol, 2- amino-n-butyl alcohol, 2- (2- amino ethoxy)-ethyl alcohol and 2- aminobenzyl alcohol.

Without being bound by theory, increased grafting increases polymer and melts at 230 DEG C with what is measured under 2.16kg on polypropylene Body flow rate I₂.Therefore, in order to maintain the viscosity compatible with the viscosity of non-functionalized, in various embodiments, base In propylene plastic body or elastomer have about 0.1wt.% to about 3.0wt.% graft levels, this depending on it is used based on Specific polyacrylic elastomer or plastic body.Graft levels can be determined by Fourier transform infrared spectroscopy (FTIR).Not by The compatibility of the melt index (MI) of theoretical constraint, plastic body or elastomer based on propylene and non-functionalized, which makes to stretch, to be grown The component of silk can suitably be blended for squeezing out.

In various embodiments, elongate filaments include about 1wt.% to the functionalized polymeric of about 30wt.%, include All single values and subrange of 1wt.% to 30wt.%.Disclosed herein is this single value and subranges.In another implementation In example, elongate filaments include the functionalized polymeric of about 1wt.% to about 20wt.%.In another embodiment, length is stretched Silk includes the functionalized polymeric of about 5wt.% to about 20wt.%.In the embodiments described herein, elongate filaments include about The non-functionalized of 68wt.% to about 99wt.%, all single values and subrange comprising 68wt.% to 99wt.%. In other embodiments, elongate filaments include about 75wt.% to the non-functionalized of about 99wt.%, and about 80wt.% is to about The non-functionalized of 99wt.%, or even about 85wt.% is to the non-functionalized of about 99wt.%.

In the embodiments herein, elongate filaments can further include one or more additives.Suitable additive Non-limiting example include antioxidant, pigment, colorant, UV stabilizer, UV absorbent, curing agent, cross-linking aid, promotion Agent and retarding agent, processing aid, filler, coupling agent, ultraviolet absorber or stabilizer, antistatic agent, nucleating agent, slip agent, Plasticiser, lubricant, viscosity-control additive, tackifier, anticaking agent, surfactant, extending oil, plumper and metal passivation Agent.In embodiment, can be less than about 10wt.%, be less than about 8wt.%, be less than about 6wt.% or be even less than about The amount of 4wt.% adds colorant, such as SICOLEN^TMGreen 85-125345 (can be obtained) from BASF.In another embodiment In, it can be to add processing aid less than about 2wt.%, less than about the amount of 1.5wt.% or even less than about 1wt.%, such as ARX-741 (can be obtained) from Argus.Weight based on composition, can be with about 0.001wt.% to the greater than about model of 10wt.% The amount enclosed uses additive.

In various embodiments, when elongate filaments are stretched to draw ratio 5, elongate filaments, which have, is greater than 0.90cN/dtex Or about 0.9cN/dtex is to the toughness of about 1.5cN/dtex.The elongate filaments after having formed long filament using extrusion process, but It is that can be used in line process elongate filaments, wherein draw unit and the extrusion unit for manufacturing the long filament for forming elongate filaments Connection.However, it is also possible to extrusion process it is unconnected during elongate filaments.The pulling force that toughness is defined as breaking part removes With linear weight (dtex).The linear weight (as unit of dtex) of monofilament is equal to the weight that monofilament weighs 50 meters.In embodiment, Elongate filaments can show the elongation of at least 55% or at least 60%.In embodiment, elongate filaments can be shown about 30% to about 150%, about 90% to about 110% or about 95% to about 105% elongation.According to ISO 188/ASTM E145 Elongation, the i.e. strain of breaking part, filament length 250mm are measured on Zwick tester for elongation, elongation percentage is 250mm/ points Clock, until filament breakage.In embodiment, toughness values and elongation values can influence long filament and therefore influence the people being made from it Make the durability of turf.

In some embodiments of this paper, elongate filaments can show the shrinking percentage less than 20%.Because of elongate filaments Low-shrinkage is shown, so the final required length of yarn that shorter long filament can be used for maintaining to stretch.Herein comprising simultaneously public All single values and the subrange less than 20% are opened.For example, in some embodiments, elongate filaments can show to be lower than 19%, lower than the 18%, shrinking percentage lower than 15% or lower than 14%.It can be by the hot oil that is immersed in 1 meter of yarn at 90 DEG C Determine shrinking percentage within 20 seconds in bath.

Manufacture the process of elongate filaments

Because elongate filaments as described herein are unrelated with process, it is possible to which use is produced by polymer composition and drawn Any process appropriate of silk is extended to manufacture elongate filaments as described herein.In some embodiments, elongate filaments are manufactured Method includes offer non-functionalized as described earlier in this article and plastic body or elastomer based on functionalized propylene Blend, and the blend of non-functionalized and plastic body or elastomer based on functionalized propylene is extruded into stretching length Silk.Elongate filaments can be extruded into specified width, which width, thickness and/or cross-sectional shape according to the geometric dimension of extruder.As above Described, elongate filaments may include monofilament, multifilament, film, fiber, yarn, such as example band yarn, fibrillation band yarn or cut film yarn, Continuous band and/or be used to form synthesis blade of grass piece or artificial turf field strand other fibrous materials.

With reference to Figure 1A and 1B, a kind of such example process 100 that can be used for manufacturing elongate filaments is described below. In process 100, elongate filaments are prepared by squeezing out.For example, non-functionalized and the plastic body based on functionalized propylene Or elastomer can be blended to form extrusioning mixture together with any additive.Suitable elongate filaments extruder can be equipped with Single polyethylene/polypropylene Universal screw rod and Melt Pump (" gear pump " or " Melt Pump ") enter mold 105 with accurate control The consistency of polymer volume flow, as shown in Figure 1A and 1B.Elongate filaments mold 105 can have for being distributed in annular Or multiple single holes of the independent long filament above rectangle spinneret.The shape in hole corresponds to desired filament cross kenel, includes Such as rectangle, dog bone type and v-shaped.Standard spinneret has 50 to 160 die holes of specific size.Production line can have 150kg/ hours to 350kg/ hours output speeds.

In the case where mold to water-bath distance 16 is to 40mm, elongate filaments 110 can be expressed into water-bath 115.Water In coating guiding bar long filament 110 is rebooted towards the first output group roller 120.The linear velocity of this first output group roller 120 It can change at 15 to 70m/ minutes.The first output group roller 120 can be heated and for stretching after water-bath 115 and entering Long filament 110 is preheated before baking oven 125.Drawing oven 125 can be hot-air or water-bath baking oven.It can be incited somebody to action in drawing oven 125 Long filament 110 is stretched to predetermined draw ratio.In some device configurations, drawing oven 125 is by one or more godets heated 300 to 310 replace, as shown in Figure 1B.In some embodiments, draw ratio is at least 4.In other embodiments, draw ratio is At least 4.5,4.8,5.0,5.2 or 5.5.Draw ratio be after drawing oven the speed of the second output group roller 130 with stretching Ratio (V2/V1 as shown in Figure 1A) before baking oven between the speed of the first output group roller 120.Second output group roller 120 can To be operated with the speed for being different from (higher or lower) first group of roller 130.Wherein stretched above the godet of heating Embodiment in, draw ratio be godet 310 speed and godet 300 speed between ratio.

After being transmitted to long filament 110 above second output group roller 130, one group of three annealing is then stretched through Baking oven 135,140 and 145.Three annealing ovens 135,140 and 145 can have in the same direction for what can be operated at 50 DEG C to 150 DEG C Or reverse thermal current hot air cabinet or in which 50 DEG C to 98 DEG C at a temperature of towards long filament 110 water oven.First The exit of annealing oven 135, long filament 110 is transmitted to can be with the speed different from (higher or lower) second group of roller 130 On the third group roller 150 of operating.The line of third group roller 150 and second group of roller 130 before baking oven after baking oven Velocity rate is properly termed as draw ratio or relaxation ratio.In the exit of the second annealing oven 140, long filament 110 is transmitted to can be with To be different from the 4th group of roller 155 that the speed of (higher or lower) third group roller 150 operates.In third annealing oven 145 Long filament 110 is transmitted to the 5th group of roller that can be operated to be different from the speed of (higher or lower) the 4th group of roller 155 by exit On 160.In some embodiments, annealing oven 135,140 and 145 can be replaced with the godet 320 and 330 of heating, such as be schemed Shown in 1B.

Elongate filaments can optionally carry out further squeezing post-processing (such as annealing, cutting etc.).

Artificial turf

One or more embodiments of elongate filaments as described herein can be used for being formed artificial turf field.With reference to Fig. 2, retouch The cross-sectional view of the artificial turf field 200 according to one or more embodiments illustrated herein and/or described is stated.Artificial turf field 200 include the main backing 205 with top side 210 and bottom side 215；And at least one foregoing elongate filaments 220.At least One elongate filaments 220 is fixed to main backing 205, so that at least one elongate filaments 220 is provided from the top side of main backing 205 210 outwardly extending tufted faces 225.As used herein, " adherency (affix/affixed/affixing) " including but not limited to One object is coupled by direct or indirect relationship, is attached, connects, fastening, engaging, being attached or secured to another object. Tufted face 225 extends from the top side 210 of main backing 205, and can have cutting stack design, wherein during tufting or it Elongate filaments ring can be cut afterwards to generate the stacking of single elongate filaments end rather than ring.

Main backing 205 may include but be not limited to by one or more naturally occurring or synthetic fibers or yarn such as polypropylene, gather Weaving, knitting made of ethylene, polyamide, polyester and artificial silk or non-woven webs or fabric.Artificial turf field 200 can be with It further comprise at least part of second backing 230 for being bonded to the bottom side 215 of main backing 205, so that at least one stretch The bottom side 215 in place for adhering to main backing 205 of long filament 220.Second backing 230 may include polyurethane (including, for example, It can be from Dow Chemical (Midland, MI) acquisition with title ENFORCEROr ENHANCERThe polyurethane of supply) Or the material based on latex, such as styrene-butadiene latex or acrylate.

Main backing 205 and/or the second backing 230 can have moisture can by hole.Hole may generally be ring configuration And it is spread out in entire main backing 205 and/or the second backing 230.It should be understood, of course, that may exist any number of hole, and And size, shape and the position in hole can change according to the desired character of artificial turf field 200.

By providing at least one elongate filaments 220 as described herein and at least one elongate filaments 220 can be glued Main backing 205 is attached to manufacture artificial turf field 200, so that at least one elongate filaments 220 provides the top from main backing 205 The outwardly extending tufted face 225 in side 210.It can be further by the way that the second backing 230 to be bonded to the bottom side 215 of main backing 205 At least part manufacture artificial turf field 200 so that at least one, elongate filaments 220 are in place adheres to main backing 205 bottom side 215.

Artificial turf field 200 can be optionally included in the buffer layer below the second backing 230 of artificial turf field.Damping Layer (not shown) can be by polyurethane, PVC foamed plastics or polyurethane foam plastics, rubber, closed pore cross-linked polyethylene foam, tool There are polyurethane underlay, polyvinyl chloride, polyethylene, polyurethane and the polyacrylic elastomer foam in gap to be made.Buffer layer it is non- Limitative examples areENFORCERMove polyurethane system andENHANCERMovement polyurethane system, two Person can obtain from Dow Chemical (Midland, MI).

Artificial turf field 200 can optionally include interior filling chock material.Filling chock material is including but not limited to graininess in suitable It is SBR (styrene butadiene ribber) that rubber grain is such as recycled from automobile tire, EPDM (Ethylene-Propylene-Diene monomer), other The mixture of vulcanized rubber or the rubber recycled from conveyer belt, thermoplastic elastomer (TPE) (TPE) and thermoplastic vulcanizates (TPV).

Artificial turf field 200 can optionally include drainage system.Drainage system allows water to remove simultaneously from artificial turf field Prevent field from becoming crowded with water.The non-limiting example of drainage system includes drainage system, EXCELDRAIN based on stone materialPiece Material 100, EXCELDRAINSheet material 200, AND EXCELDRAINEX-T STRIP (can be from North Carolina State door sieve American Wick Drain Corp. is obtained).

Embodiment as described herein can be further illustrated by the following non-limiting examples.

Test method

Density

Density is measured according to ASTM D792, and with a gram (g/cm per cubic centimeter³Or g/cc) report.

Melt index (MI)

According to ASTM D1238, melt index (MI) or I are measured under 190 DEG C and 2.16kg₂, and with elution in every 10 minutes Grams report.According to ASTM D1238, melt index (MI) or I are measured under 190 DEG C and 10kg₁₀。

Melt flow rate (MFR)

According to ASTM D1238, the melt flow rate (MFR) of the polymer based on propylene is measured under 230 DEG C and 2.16kg MFR₂, and with the report of the grams of elution in every 10 minutes.According to ASTM D1238, measurement is based on propylene under 230 DEG C and 10kg Polymer melt flow rate (MFR) or MFRio, and with every 10 minutes elution grams report.

Differential scanning calorimetry (DSC)

The baseline calibration of TA instrument DSC Q1000 is executed by using the calibration guide in software.Firstly, by by unit It is heated to 300 DEG C from -90 DEG C and obtains baseline, without any sample in aluminium DSC disk.After that, it is used according to the instruction in guide Sapphire reference substance.Then be balanced by the way that sample is heated to 100 DEG C and analyze about 3 to the fresh indium sample of 4mg, then with Sample is heated to 180 DEG C from 100 DEG C by 10 DEG C/min of the rate of heat addition.The fusing heat and melting for determining indium sample start, and core Melting is started as in 1.3 DEG C of 156.6 DEG C, and is melted in the 0.8J/g that heat is 28.71J/g.

160 DEG C at a temperature of polymer samples are pressed into film.About 5 are weighed to 8mg sample, and is placed on DSC In disk.Lid is screwed on disk to ensure closed atmosphere.Sample disc is put into DSC unit, and then with 10 DEG C/minute The high-speed of clock is heated to 230 DEG C.Sample is kept about 3 minutes at this temperature.Then sample is cold with 10 DEG C/min of rate But -40 DEG C are arrived, and isothermal is kept for 3 minutes at a temperature of that.Then sample is heated with 10 DEG C/min of rate, until complete Melting or 230 DEG C.Analyze the DSC fusing point and fusing heat of the gained enthalpy curve from second of scanning.As follows calculate is based on The DSC% crystallinity of the polymer of propylene:

WhereinIt is the fusing heat observed obtained from " the second fusion curve ".

Fourier transform infrared spectroscopy (FTIR)

Grafting amount is determined by Fourier Transform Infrared Spectroscopy (FTIR).Particularly, 2g graft polymers is dissolved in In 150mL toluene.Mixture is heated and stir until all graft polymers all in the solution.Solution is 10 minutes cooling, And the cold methane of 100mL is added, to form sediment.By #2 qualitative filter paper drawing solution to collect sediment.By sediment It is 1 hour dry at 100 DEG C in forced ventilation baking oven, then it is pressed into film.Then FTIR spectrum instrument film processed is used.

Basis weight

The basis weight of long filament is usually reported by dtex in the industry.The dtex of monofilament is equal to 10km monofilament gram to be The weight of unit.

Tensile strength

The tensile strength of long filament is measured according to ISO 527.

Elongation

Elongation is measured according to ISO 527.

Shrinking percentage

(it is mono- to be expressed as 1m to measure the shrinking percentage of monofilament within 20 seconds by immersing monofilament in the silicone oil bath maintained at 90 DEG C The percentage of the length of silk sample is reduced).Then, shrinking percentage calculates are as follows: the length of (length of length-before later)/before Degree * 100%.

Toughness

Toughness is determined using Zwick stretching testing machine, is operated on the monofilament of 260mm length, and is used 250mm/ minutes Tensile speed until filament breakage.Toughness (unit cN/dtex) is the tensile stress (unit cN) of breaking part divided by line Property weight (unit dtex).The linear weight (unit dtex) of monofilament is equal to the weight that monofilament weighs 50 meters.

Adhesiveness

Polyurethane (PU) reaction mixture is coated to the thickness of 0.76mm by using wet film applicator and is gathered to benzene two Sample is prepared on formic acid glycol ester (PET) film.One root long silk carefully in conjunction with coating, makes great efforts the packet for reducing air pocket Contain.PET/PU/ filament samples are placed between the glass pane of two pieces of preheatings to maintain sample flatness, are subsequently placed in 85 DEG C Baking oven in five (5) minutes to solidify PU.Sample is improved into seven (7) days so that PU is fully cured.For every kind of filament compositions, Duplicate measurements six (6) is secondary.Cause the layering of long filament and PU with hand and continues on Instron stretching testing machine.Record adhesion strength.

Example

The example carried out below illustrates one or more of feature of elongate filaments of the disclosure.Prepare functionalized poly It closes object and is used to prepare the blend comprising functionalized polymeric and non-functionalized.Blend is also used for preparation and stretches length Silk.It is tested in elongate filaments.

Functionalized polymeric preparation

The elastomer or plastic body resin of the propylene based on imidizate are prepared by two step process.Firstly, using maleic acid Acid anhydride (MAH) is grafted elastomer or plastic body based on propylene.Then make MAH be grafted polymer further with diamine reactant.Make It is as follows with the reaction schematic diagram of n-ethylethylenediamine:

Grafting experiment is completed on Coperion 25mm twin-screw reactive extrursion production line.Reactive extrursion production line has 12 bucket sections and 9 humidity provinces.Maleic anhydride is dissolved in methyl ethyl ketone (MEK) solvent by the weight based on solution, The maleic anhydride of 50wt.%.It is stirred overnight the MEK in maleic anhydride addition flask and with magnetic stirring bar.By MEK solvent, In the bucket #4 (humidity province 3) of maleic anhydride and peroxide injection extruder.Liquid pumping system is ISCO D1000 positive-displacement pump, It can be used as Alltech HPLC and pump commercially available, model 627.

It will be obtained from Dow Chemical (Midland, MI) using K-Tron type KCLKT20 twin-screw loss in weight feeder VERSIFY^TM3000 propylene-ethylene copolymers are added in extruder.Under fixed 200rpm screw speed, feed rate It is 15lb/ hours.

Once MAH grafting process is completed, imidizate step is carried out using n-ethylethylenediamine (DEDA, CAS 110-72-5) Suddenly.Reaction carries out under conditions of more than DEDA, so that crosslinking risk minimization and driving a reaction conversion completion.Use 2.5:1 The primary amine and MAH content of molar ratio prepare sample.

According to the above method, grafting amount is determined by Fourier transform infrared spectroscopy (FTIR).

Table 1 provides the selected properties of plastic body or elastomer based on functionalized propylene.

Table 1

Blend polymer

As shown in table 2, preparation includes the blend of functionalized polymeric and non-functionalized.Various examples and comparison Example (example 1 and 2 and comparison example 1 and 2) includes the DOWLEX obtained from Dow Chemical (Midland, MI)^TM SC 2107G is as non-functionalized.DOWLEX^TMSC 2107G is linear low density polyethylene (LLDPE) resin, has root The density 0.917g/cc, the melt index (MI) I measured at 190 DEG C, 2.16kg according to ASTM D1238 measured according to ASTM D792₂ The 2.3g/10min and melt flow ratio I measured according to ASTM D1238 (190 DEG C and 10kg)₁₀/I₂6 to 14.Third is real Example (example 3) include can from Braskem (St. Paul,Brazil) obtain Braskem D105.02 as non-functionalized. Braskem D105.02 is nonfunctionalized polypropylene homopolymer, has and is measured at 230 DEG C, 2.16kg according to ASTM D1238 3g/10min MFR₂。

Particularly, by by DOWLEX^TMSC 2107G respectively in table 1 5% plastic body based on functionalized propylene or 10% based on the plastic body of functionalized propylene or elastomer mixing prepares two examples (1 He of example in elastomer and table 1 2).By mixing based on the plastic body of functionalized propylene or elastomer and to prepare Braskem D105.02 in table 1 10% Third example (example 3).

Extraly it is prepared for two comparison examples.One comparison example (comparison example 1) only includes DOWLEX^TM SC 2107G.Second comparison example (comparison example 2) includes the DOWLEX in table 1^TMSC 2107G and 5% functional polyethylene. Table 2 provides the content of various examples with wt.%.

Elongate filaments

Elongate filaments are prepared by example.Long filament preparation is rendered as the wt.% of total long filament preparation in following table 2.It is squeezing Before out by additive, color (colour masterbatch BASF Sicolen 85125345) and processing aid (Argus ARX-741) and Polymer composition is blended.As described herein, it is prepared on Collins fiber spinning line (referring to Figure 1B) every in long filament One.

Table 2

Table 3 provides the actual conditions for being used to prepare the equipment of long filament.

Table 3

Long filament-example 1, example 2 shown in table 4, example 3, comparison example 1 and comparison example 2- are raw with draw ratio 5 It produces.In this case, the speed of the first godet is 28m/ minutes (speed/5 of final godet).It is long shown in table 5 Silk -- example 1 and comparison example 2-- are with the production of draw ratio 3.66.In this case, the speed of the first godet is 38.25m/ Minute (speed/3.66 of final godet).Test shrinking percentage, toughness, elongation and the bonding to polyurethane of elongate filaments Property, and result is shown in table 4 and 5.With 250mm/ minutes Drawing rate measurement 250mm's on Zwick tension tester The toughness and elongation of filament length are until filament breakage.The pulling force that toughness is defined as breaking part (divides divided by linear weight It is special).Elongation is the strain of breaking part.According to method provided above measurement to the adhesiveness of polyurethane.Record adhesion strength simultaneously It is reported in table 4 and 5.

The long filament result that table 4- draw ratio is 5

The long filament result that table 5- draw ratio is 3.66

	Example 1	Comparison example 2
			Shrinking percentage (%)	8.0	10.5
Toughness (cN/dtex)	0.73	0.64
			Elongation (%)	83.8	73.7
To the adhesiveness (N) of PU	0.26	0.15

As shown in table 4, with the addition of functionalized polymeric, toughness, elongation and the adhesiveness increase to polyurethane.Volume Other places, as shown in table 4 and 5, the long filament comprising plastic body or elastomer based on functionalized propylene is shown better than comprising function Change the improvement of polyethylene, the long filament (comparison example 2) being broken during drawing process.

It is without being bound by theory, it is believed that during the functionalization of plastic body or elastomer based on propylene, polymer chain is cut It cuts, so that Splitting Chain more readily migrates into filament surface and improves the adhesiveness to polyurethane.However, it is believed that the function of polyethylene Change and generate longer branch, so as to cause reverse effect.It is further believed that the longer branch occurred in polyethylene functionalization The direction that long filament is negatively affected with crosslinking prevents toughness of the filament draw to draw ratio 5 and needed for realizing.

Dimensions and values disclosed herein is not understood as being strictly limited to described exact value.On the contrary, unless Otherwise indicated, otherwise each this size, which is intended to, refers to institute's recited values and the functionally equivalent range around that value.For example, The size for being disclosed as " 40mm " is intended to refer to " about 40mm ".

Unless expressly excluded or otherwise limited, if, it is comprising any cross reference or Any patent application of its priority or equity required by relevant patent or application and the application or patent it is cited herein Every a document pass through reference hereby and be hereby incorporated by reference in its entirety.The reference of any document does not recognize that it is about this paper institute The prior art of open or required any feature or its individually or in the form of with any other reference or reference portfolios Teach, show or disclose any this invention.Further, the term in the literature in all senses or definition with pass through reference In all senses or in the conflicting situation of definition of the same term in document being incorporated to, should be with art assigned in the literature Subject to the meaning or definition of language.

Although having been described above and describing the specific embodiment of the disclosure, those skilled in the art should be shown and easy Know, various other changes and modification can be made without departing from the spirit and scope of the disclosure.Accordingly, it is intended to institute All this changes and modification within the scope of this disclosure is covered in attached claims.

Claims

1. a kind of elongate filaments formed by blend comprising:

At least one functionalized polymeric, wherein the functionalized polymeric be plastic body or elastomer based on propylene, it is described Plastic body or elastomer have the one or more functional groups being grafted on the plastic body or elastomer based on propylene, wherein The group that one or more of functional groups select free amino and imide to form, wherein at least one functionalized polymeric With 100 DEG C to 130 DEG C of differential scanning calorimetries (differential scanning calorimetry；DSC) fusing point； And

Non-functionalized；

Wherein when the elongate filaments are stretched to draw ratio 5, the elongate filaments have the toughness greater than 0.90cN/dtex.

2. elongate filaments according to claim 1, wherein the non-functionalized includes arriving with 0.900g/cc 0.950g/cc density (according to ASTM D792 measure) and according to ASTM D 1238 (190 DEG C and 2.16kg) measurement The melt index (MI) I of 0.1g/10min to 10g/10min₂Polyethylene.

3. elongate filaments according to claim 1, wherein the non-functionalized includes arriving with 0.915g/cc 0.940g/cc density (according to ASTM D792 measure) and according to ASTM D 1238 (190 DEG C and 2.16kg) measurement The melt index (MI) I of 0.7g/10min to 5g/10min₂Polyethylene.

4. elongate filaments according to claim 2 or 3, wherein the polyethylene has 5 to 14 melt flow ratio I10/ I2, wherein measuring I10 according to ASTM D1238 (190 DEG C and 10kg).

5. elongate filaments according to any preceding claims, wherein the non-functionalized includes polypropylene homo Object.

6. elongate filaments according to claim 5 the, wherein melt flow rate (MFR) (MFR of the non-functionalized₂) be 0.5g/10min to 25g/10min.

7. elongate filaments according to claim 5, wherein the MFR of the polypropylene homopolymer₂For 0.5g/10min to 10g/ 10min。

8. according to claim 1 to elongate filaments described in 7, wherein the graft levels of the functionalized polymeric are 0.1wt.% To 3.0wt.%.

9. according to claim 1 to elongate filaments described in 8, wherein the plastic body or elastomer based on propylene be propylene/ Ethylene copolymer or propylene/α-olefin copolymer, wherein the alpha-olefin is C₄-C₂O alpha-olefin.

10. elongate filaments according to claim 1, wherein at least one functionalized polymeric has according to ASTM D Melt flow rate (MFR) (the MFR of 1g/10min to the 20g/10min of 1238 (230 DEG C and 2.16kg) measurement₂)。

11. a kind of artificial grass turf system comprising:

Main backing；

Auxiliary backing；And

Elongate filaments according to claim 1.