CN116749616B - 一种路基用聚丙烯长丝增强复合土工织物 - Google Patents

一种路基用聚丙烯长丝增强复合土工织物 Download PDF

Info

Publication number
CN116749616B
CN116749616B CN202311058348.1A CN202311058348A CN116749616B CN 116749616 B CN116749616 B CN 116749616B CN 202311058348 A CN202311058348 A CN 202311058348A CN 116749616 B CN116749616 B CN 116749616B
Authority
CN
China
Prior art keywords
polypropylene
roadbed
transverse
polypropylene filaments
geotextile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202311058348.1A
Other languages
English (en)
Other versions
CN116749616A (zh
Inventor
镇垒
孙丰华
刘效林
盛春赋
王德攀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianding Fengju Propylene Material Technology Co ltd
Original Assignee
Tianding Fengju Propylene Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianding Fengju Propylene Material Technology Co ltd filed Critical Tianding Fengju Propylene Material Technology Co ltd
Priority to CN202311058348.1A priority Critical patent/CN116749616B/zh
Publication of CN116749616A publication Critical patent/CN116749616A/zh
Application granted granted Critical
Publication of CN116749616B publication Critical patent/CN116749616B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B32B5/073—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper characterised by the fibrous or filamentary layer being mechanically connected to another layer by sewing, stitching, hook-and-loop fastening or stitchbonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/04—Foundations produced by soil stabilisation
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B32B2038/168—Removing solvent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

本发明属于无纺布制造领域，公开了一种路基用聚丙烯长丝增强复合土工织物。所述复合土工织物包括上下叠放的多层纤维网；每两层纤维网之间横向均匀铺放有横向聚丙烯长丝；所述多层纤维网和所述横向聚丙烯长丝构成的土工织物上绗缝有纵向聚丙烯长丝。本发明的复合土工织物产品既能提高路基的导排水性能，也能增加土工织物与路基材料的摩擦阻力，提高路基的稳定性。

Description

一种路基用聚丙烯长丝增强复合土工织物
技术领域
本发明属于无纺布制造领域，更具体地，涉及一种路基用聚丙烯长丝增强复合土工织物。
背景技术
路基的强度和稳定性是保证道路质量的基本条件。路基中土壤水分含量大时如不能及时排水，将会发生路基沉降、变形等问题，增加维护成本，同时在道路使用过程中也存在一定的安全隐患。目前路基中使用的土工织物主要依靠纤维间的空隙排水，效果差，同时土工织物表面同路基材料的摩擦阻力小，限制土体侧向位移的能力弱，影响路基的稳定性。
因此，目前亟待提出一种路基用聚丙烯长丝增强复合土工织物及制备方法。
发明内容
本发明的目的是针对现有技术的不足，提出一种路基用聚丙烯长丝增强复合土工织物。本发明的复合土工织物产品既能提高路基的导排水性能，也能增加土工织物与路基材料的摩擦阻力，提高路基的稳定性。
为了实现上述目的，本发明提供了一种路基用聚丙烯长丝增强复合土工织物，所述复合土工织物包括上下叠放的多层纤维网；
每两层纤维网之间横向均匀铺放有横向聚丙烯长丝；
所述多层纤维网和所述横向聚丙烯长丝构成的土工织物上绗缝有纵向聚丙烯长丝。
根据本发明，优选地，以每层纤维网的原料总重量计，所述每层纤维网的原料包括含量为98.5-99.5%的聚丙烯树脂和含量为0.5-1.5%的抗UV母粒；
所述聚丙烯树脂的熔融指数为10-15g/10min，等规指数≥97.5%，拉伸屈服应力＞30MPa。
根据本发明，优选地，所述每层纤维网的原料依次经加热熔融、过滤除杂、计量纺丝、冷却牵伸和摆丝铺网，得到所述每层纤维网。
在本发明中，所述过滤除杂为滤掉杂质和胶粒。
在本发明中，所述计量纺丝为将经所述过滤除杂的熔体通过管道输送进入纺丝箱体，通过纺丝组件的喷丝孔挤出，形成熔体细流。
在本发明中，所述冷却牵伸为将所述熔体细流被侧吹风冷却的同时被气流牵伸，所述熔体细流内部分子结晶，继而形成具有一定强度的固体纤维丝。
根据本发明，优选地，所述摆丝铺网采用的装置包括成网帘、铺网装置和下吸风装置。
在本发明中，固体纤维丝经铺网装置和下吸风装置配合，均匀地在成网帘上形成纤维网。同样的铺网装置有两排，两排间距3-4米，用于铺设多层纤维网。
根据本发明，优选地，所述横向聚丙烯长丝通过片梭装置横向均匀铺放在每两层纤维网之间。
根据本发明，优选地，各个横向聚丙烯长丝之间的间隔为8-10cm。
根据本发明，优选地，所述横向聚丙烯长丝和纵向聚丙烯长丝各自独立地为线密度2500-3000dtex、纤维强度＞75N/tex的聚丙烯长丝。
根据本发明，优选地，各个纵向聚丙烯长丝之间的间隔为15-18cm。
根据本发明，优选地，所述多层纤维网和所述横向聚丙烯长丝经喷胶、烘干固结和烧毛处理构成的土工织物上绗缝有纵向聚丙烯长丝。
根据本发明，优选地，所述喷胶喷洒的胶液为丙烯酸乳液、聚醋酸乙烯酯和醋酸乙烯-丙烯酸酯共聚物中的至少一种。
根据本发明，优选地，所述喷胶采用的装置包括喷胶装置和下吸风装置；所述喷胶装置设置有喷嘴，所述下吸风装置设置于所述喷嘴下方。
在本发明中，所述喷胶采用的下吸风装置可以使胶液均匀的穿透纤维网，使胶液与纤维丝充分接触。
在本发明中，烘干固结处理使得相邻的纤维被胶液粘结；所述烧毛处理包括将经烘干固结处理的织物送入烧毛机，烧毛机将织物两面的纤维毛羽烧结成球状，增加了所得土工织物表面的摩擦阻力。
在本发明中，绗缝纵向聚丙烯长丝的作用包括：固定横向聚丙烯长丝，同时增加土工织物的纵向强度。
本发明的技术方案的有益效果如下：本发明的复合土工织物产品既能提高路基的导排水性能，有效排出路基中多余的水分，也能增加土工织物与路基材料的摩擦阻力，增加土体模量，提高路基的稳定性。
本发明的横向聚丙烯长丝的均匀铺放，增加了纤维网内部横向的空隙，提高了本发明的复合土工织物产品的导排水性能，同时也提高了横向断裂强度，能有效吸收、扩散土体应力。
本发明的复合土工织物使用聚丙烯材质，聚丙烯材质具有优良的耐酸碱性能和抗冻融性能，适合在任何环境下使用，且环保无污染。
本发明的其它特征和优点将在随后具体实施方式部分予以详细说明。
附图说明
通过结合附图对本发明示例性实施方式进行更详细的描述，本发明的上述以及其它目的、特征和优势将变得更加明显，其中，在本发明示例性实施方式中，相同的参考标号通常代表相同部件。
图1示出了本发明实施例1提供的一种路基用聚丙烯长丝增强复合土工织物的结构示意图。
附图标记说明如下：
1-横向聚丙烯长丝；2-纵向聚丙烯长丝；3-第一层纤维网；4-第二层纤维网。
具体实施方式
下面将更详细地描述本发明的优选实施方式。虽然以下描述了本发明的优选实施方式，然而应该理解，可以以各种形式实现本发明而不应被这里阐述的实施方式所限制。相反，提供这些实施方式是为了使本发明更加透彻和完整，并且能够将本发明的范围完整地传达给本领域的技术人员。
实施例1
本实施例提供一种路基用聚丙烯长丝增强复合土工织物，如图1所示，所述复合土工织物的单位面积质量为200（g/m2），包括上下叠放的两层纤维网；
两层纤维网之间横向均匀铺放有横向聚丙烯长丝1；
所述两层纤维网和所述横向聚丙烯长丝1构成的土工织物上绗缝有纵向聚丙烯长丝2。
具体地，上述的路基用聚丙烯长丝增强复合土工织物的制备方法包括：
S1：加热熔融：将每层纤维网的原料加入螺杆挤压机中加热熔融，形成流动的熔体；其中，以每层纤维网的原料总重量计，所述每层纤维网的原料包括含量为98.5%的聚丙烯树脂和含量为1.5%的抗UV母粒；所述聚丙烯树脂的熔融指数为10g/10min，等规指数98.5%，拉伸屈服应力32MPa。
S2：过滤除杂：熔体经熔体过滤器滤掉杂质和胶粒。
S3：计量纺丝：将经所述过滤除杂的熔体通过管道输送进入纺丝箱体，通过纺丝组件的喷丝孔挤出，形成熔体细流。
S4：冷却牵伸：将所述熔体细流被侧吹风冷却的同时被气流牵伸，所述熔体细流内部分子结晶，继而形成具有一定强度的固体纤维丝。
S5：摆丝铺网：固体纤维丝经铺网装置和下吸风装置配合，均匀地在成网帘上形成纤维网。同样的铺网装置有两排，两排间距3-4米，分别用于铺设两层纤维网。
S6：横向聚丙烯长丝铺放：选用线密度2500dtex、纤维强度77N/tex的横向聚丙烯长丝，使用片梭装置将各个横向聚丙烯长丝1间隔8cm，横向均匀的铺放在第一层纤维网上，成网机两侧有固定横向聚丙烯长丝的加紧装置，加紧装置夹持横向聚丙烯长丝随着成网帘上的第一层纤维网3一起向前运行，被第二层纤维网4覆盖。
S7：喷胶处理：覆盖第二层纤维网4后，利用喷胶装置均匀的喷洒丙烯酸乳液，喷嘴下方有下吸风，可以使胶液均匀的穿透两层纤维网，使胶液与纤维充分接触。喷胶后成网机两侧夹持横向聚丙烯长丝的装置打开，将横向聚丙烯长丝留在两层纤维网中。横向聚丙烯长丝的均匀铺放，增加了纤维网内部横向的空隙，提高复合土工织物产品的导排水性能，同时也提高了横向断裂强度。
S8：烘干固结处理：喷洒胶液后的两层纤维网（中间横向布置有横向聚丙烯长丝）进入烘干设备，相邻的纤维被胶液粘结，形成烘干的聚丙烯长丝土工织物。
S9：烧毛处理：将烘干的聚丙烯长丝土工织物送入烧毛机，烧毛机将织物两面的纤维毛羽烧结成球状，增加了所得土工织物表面的摩擦阻力。
S10：绗缝加固：烧毛后的土工织物被绗缝机纵向加固，选用线密度2500dtex、纤维强度77N/tex的纵向聚丙烯长丝，绗缝针头间隔15cm均匀布置，固定横向分布的横向聚丙烯长丝的同时增加土工织物的纵向强度。
S11：切边、卷绕，将两端过长的横向聚丙烯长丝去除，卷绕包装。
实施例2
本实施例提供一种路基用聚丙烯长丝增强复合土工织物，本实施例与实施例1的区别仅在于：
以每层纤维网的原料总重量计，所述每层纤维网的原料包括含量为99%的聚丙烯树脂和含量为1%的抗UV母粒；所述聚丙烯树脂的熔融指数为15g/10min，等规指数98.0%，拉伸屈服应力33MPa。
在步骤S6中，选用线密度3000dtex、纤维强度78N/tex的横向聚丙烯长丝，各个横向聚丙烯长丝之间的间隔为10cm。
在步骤S10中，选用线密度3000dtex、纤维强度78N/tex的纵向聚丙烯长丝，各个纵向聚丙烯长丝之间的间隔为18cm。
测试例
本测试例对实施例1和实施例2的路基用聚丙烯长丝增强复合土工织物按照GB/T15788和GB/T 17633方法进行测试，测试结果见表1（其中普通产品为聚酯纺粘针刺非织造布）。
表1
从表1可以看出，本发明的路基用聚丙烯长丝增强复合土工织物的产品抗拉强度和横向平面透水性能得到明显提升。
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。

Claims (7)

1.一种路基用聚丙烯长丝增强复合土工织物，其特征在于，所述复合土工织物包括上下叠放的多层纤维网；
每两层纤维网之间横向均匀铺放有横向聚丙烯长丝；
所述多层纤维网和所述横向聚丙烯长丝构成的土工织物上绗缝有纵向聚丙烯长丝；
各个横向聚丙烯长丝之间的间隔为8-10cm；
各个纵向聚丙烯长丝之间的间隔为15-18cm；
所述横向聚丙烯长丝和纵向聚丙烯长丝各自独立地为线密度2500-3000dtex、纤维强度＞75N/tex的聚丙烯长丝。
2.根据权利要求1所述的路基用聚丙烯长丝增强复合土工织物，其中，
以每层纤维网的原料总重量计，所述每层纤维网的原料包括含量为98.5-99.5%的聚丙烯树脂和含量为0.5-1.5%的抗UV母粒；
所述聚丙烯树脂的熔融指数为10-15g/10min，等规指数≥97.5%，拉伸屈服应力＞30MPa。
3.根据权利要求2所述的路基用聚丙烯长丝增强复合土工织物，其中，所述每层纤维网的原料依次经加热熔融、过滤除杂、计量纺丝、冷却牵伸和摆丝铺网，得到所述每层纤维网。
4.根据权利要求3所述的路基用聚丙烯长丝增强复合土工织物，其中，所述摆丝铺网采用的装置包括成网帘、铺网装置和下吸风装置。
5.根据权利要求1所述的路基用聚丙烯长丝增强复合土工织物，其中，所述横向聚丙烯长丝通过片梭装置横向均匀铺放在每两层纤维网之间。
6.根据权利要求1所述的路基用聚丙烯长丝增强复合土工织物，其中，所述多层纤维网和所述横向聚丙烯长丝经喷胶、烘干固结和烧毛处理构成的土工织物上绗缝有纵向聚丙烯长丝。
7.根据权利要求6所述的路基用聚丙烯长丝增强复合土工织物，其中，
所述喷胶喷洒的胶液为丙烯酸乳液、聚醋酸乙烯酯和醋酸乙烯-丙烯酸酯共聚物中的至少一种；
所述喷胶采用的装置包括喷胶装置和下吸风装置；所述喷胶装置设置有喷嘴，所述下吸风装置设置于所述喷嘴下方。
CN202311058348.1A 2023-08-22 2023-08-22 一种路基用聚丙烯长丝增强复合土工织物 Active CN116749616B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311058348.1A CN116749616B (zh) 2023-08-22 2023-08-22 一种路基用聚丙烯长丝增强复合土工织物

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311058348.1A CN116749616B (zh) 2023-08-22 2023-08-22 一种路基用聚丙烯长丝增强复合土工织物

Publications (2)

Publication Number Publication Date
CN116749616A CN116749616A (zh) 2023-09-15
CN116749616B true CN116749616B (zh) 2023-10-31

Family

ID=87953794

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311058348.1A Active CN116749616B (zh) 2023-08-22 2023-08-22 一种路基用聚丙烯长丝增强复合土工织物

Country Status (1)

Country Link
CN (1) CN116749616B (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008150257A1 (en) * 2007-06-04 2008-12-11 Tenax International B.V. High-friction geo-textiles for increasing the stability of landfill drainage layers and other high- friction angle installations, and related methods
KR101879347B1 (ko) * 2017-10-30 2018-07-17 주식회사 에코텍스 고흡수성 부직포를 포함한 아스팔트 도로 보강용 지오그리드 및 그 제조방법, 그리고 아스팔트 도로 보강용 지오그리드를 이용한 아스팔트 도로의 보수 보강공사 방법
CN115157799A (zh) * 2022-06-15 2022-10-11 安徽中路工程材料有限公司 自粘轨道板土工布复合土工膜及其应用于轨道的施工方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8039081B2 (en) * 2002-02-14 2011-10-18 Peter J. Ianniello Fuzzy woven layers, geocomposite laminates incorporating them, and related methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008150257A1 (en) * 2007-06-04 2008-12-11 Tenax International B.V. High-friction geo-textiles for increasing the stability of landfill drainage layers and other high- friction angle installations, and related methods
KR101879347B1 (ko) * 2017-10-30 2018-07-17 주식회사 에코텍스 고흡수성 부직포를 포함한 아스팔트 도로 보강용 지오그리드 및 그 제조방법, 그리고 아스팔트 도로 보강용 지오그리드를 이용한 아스팔트 도로의 보수 보강공사 방법
CN115157799A (zh) * 2022-06-15 2022-10-11 安徽中路工程材料有限公司 自粘轨道板土工布复合土工膜及其应用于轨道的施工方法

Also Published As

Publication number Publication date
CN116749616A (zh) 2023-09-15

Similar Documents

Publication Publication Date Title
CN101495693B (zh) 包含分散于粘结熔纺纤维中的微纤维的纤维幅材
CN107385683B (zh) 一种无纺过滤介质及其制备方法和用途
CN102277690B (zh) 一种亲水基布及其制造方法
US4411722A (en) Method for producing a non-woven fabric of cross-laminated warp and weft webs of elongated stocks
CN103638746B (zh) 高效低阻纺粘非织造滤料、及其生产设备和制造方法
CN101760903A (zh) 聚苯硫醚纺粘针刺无纺布的制备方法及其装置
CN1705558A (zh) 具有改进阻隔性能的无纺工业织物
CN101786293B (zh) 一种混凝土浇注用模板布及其制造方法
CN116749616B (zh) 一种路基用聚丙烯长丝增强复合土工织物
SE518035C2 (sv) Metod för framställning av ett nonwovenmaterial
CN104358030A (zh) 粗旦高强纺粘无纺布及其制备方法
CN210765597U (zh) 基于聚酯长丝的无纺布制造装置
DE102005054726A1 (de) Vliesstoffe und Verfahren zu deren Herstellung
CN113026213B (zh) 梯度纤维无纺布及其纺丝设备和制作方法
KR100650144B1 (ko) 밀도구배를 가지는 스펀본드 부직포의 제조방법
CN206644391U (zh) 复合土工布及其制造设备
CN106739196B (zh) 复合土工布及其制备方法和制造设备
CN202705667U (zh) 一种新型纺粘非织造布管式牵伸成网装置
CN215209903U (zh) 生产多层熔喷布的装置
CN105220364B (zh) 干湿两种成网方式相结合水刺固结的非织造材料
CN213866712U (zh) 一种含驻极纺粘层和熔喷层的非织造滤材
CN106835506A (zh) 一种高渗透高伸长率无纺布复合材料及其制备方法
CN112481820A (zh) 一种复合熔喷无纺布及其制备方法
JPH1119435A (ja) 極細複合繊維不織布からなる円筒状フィルター及びその製造方法
CN213313793U (zh) Pp长丝空气过滤布

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant