CN102644158A - Polyolefin mesh fabric, preparation method and application thereof - Google Patents
Polyolefin mesh fabric, preparation method and application thereof Download PDFInfo
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- CN102644158A CN102644158A CN201210098161XA CN201210098161A CN102644158A CN 102644158 A CN102644158 A CN 102644158A CN 201210098161X A CN201210098161X A CN 201210098161XA CN 201210098161 A CN201210098161 A CN 201210098161A CN 102644158 A CN102644158 A CN 102644158A
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- polypropylene
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- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- -1 polypropylene Polymers 0.000 claims abstract description 97
- 239000004743 Polypropylene Substances 0.000 claims abstract description 93
- 229920001155 polypropylene Polymers 0.000 claims abstract description 92
- 239000002131 composite material Substances 0.000 claims abstract description 75
- 229920001577 copolymer Polymers 0.000 claims abstract description 35
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000004611 light stabiliser Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 229920000642 polymer Polymers 0.000 claims abstract description 11
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- 239000007921 spray Substances 0.000 claims description 16
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- 230000008569 process Effects 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 230000002708 enhancing effect Effects 0.000 claims description 8
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 8
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 8
- 229940114930 potassium stearate Drugs 0.000 claims description 8
- ANBFRLKBEIFNQU-UHFFFAOYSA-M potassium;octadecanoate Chemical group [K+].CCCCCCCCCCCCCCCCCC([O-])=O ANBFRLKBEIFNQU-UHFFFAOYSA-M 0.000 claims description 8
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 7
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 7
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- 239000002994 raw material Substances 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 5
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- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 35
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- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a polyolefin mesh fabric, a preparation method of the polyolefin mesh fabric and application in preparing enhanced polypropylene non-woven fabric and waterproof and humidity permeating composite material of the polyolefin mesh fabric. The polyolefin mesh fabric comprises the following components in parts by weight: 90-97 parts of polymers, 3-10 parts of elastomers, 1-3 parts of dispersants, 1-4 parts of lubricants, 1-3 parts of light stabilizers, and 1-3 parts of antioxidants, wherein the polymer is polypropylene or polyethylene, and the elastomer is ethylene-octene copolymer. The air permeable quantity of the composite material is up to 0.28-0.35 cm<3>/cm<2>*s; the water vapor permeability is up to 3100-3900 g/m<2>*24h; the waterproof performance is up to 0.020-0.024MPa; and the longitudinal tensile strength and transversal tensile strength are respectively up to 540-600N/5cm and 470-500N/5cm.
Description
Technical field
The present invention relates to a kind of grid cloth, particularly relate to a kind of polyolefin grid cloth that is used for strengthening nonwoven polypropylene fabric and preparation method thereof and the nonwoven polypropylene fabric that strengthens in preparation polyolefin grid cloth and the application of Waterproof Breathable composite.
Background technology
The multilayer materials that polymer-matrix waterproof humidity-permeant film and non-woven fabrics of synthetic fiber are composited can be used as the Waterproof Breathable bed course of roofing, the Waterproof Breathable laying that the exterior wall dried hanging formula is decorated and insulation material is inboard in building field.In above-mentioned composite; Non-woven fabrics of synthetic fiber is used for embodying the intensity of composite, performance such as anti-aging; Its polymer-matrix waterproof humidity-permeant film only allow the aqueous vapor molecule through and do not allow aqueous water to pass through, the Waterproof Breathable function of composite leans on it to realize fully.
Polymer-matrix waterproof humidity-permeant film microporous barrier is the polymer film that contains a large amount of a few micron order micropores, and it can make aqueous water pass through through allowing aqueous vapor molecule and other gas molecules.Microporous barrier mainly contains MIcroporous polyolefin film and microporous teflon membran.Water proof and moisture permeable material, tent and the amenities etc. that can be used for building field after MIcroporous polyolefin film and synthetic fiber are compound.The pore type poly tetrafluoroethylene is mainly used in special protecting clothing and architecture enclosing protective material, but costs an arm and a leg.
It is polyethene microporous membrane that CN1381624A discloses a kind of intermediate layer, the 3-layer composite material of ectonexine nonwoven polypropylene fabric.The preparation of microporous barrier is by fully drawing realization again through a line pressure roller during hardening by cooling as yet through casting films; In drilling, realize the compound of intermediate layer and ectonexine nonwoven fabric; Its pore method is mechanical pore method; The air-moisture-permeable amount of the composite of this method preparation is lower, and product is not suitable for building field, only is applicable to garment industry.Comparatively similarly patent has US 498372, US 3903234, EP-A-2702026, CN 1258305A, CN 1041167A etc. in addition.
Inventor's mandate patent of invention ZL 200610103804.X discloses a kind of preparation method with three layers of composite membrane of air-cleaning function and waterproof and breathable function.The used polymeric system of its intermediate layer microporous barrier is LLDPE/ethylene-octene copolymer, and the pore method is the stretching pore, uses the compound intermediate layer of processing of adhesive-free method to be microporous barrier, inside and outside two-layer be the 3-layer composite material of nonwoven polypropylene fabric.
Inventor's mandate patent of invention ZL 200910169053.5 discloses the preparation method and the purposes of the 3-layer composite material that a kind of polyolefin Waterproof Breathable microporous barrier and microporous barrier and two-layer up and down nonwoven polypropylene fabric be composited.The Waterproof Breathable composite of preparation can be used as the Waterproof Breathable bed course of roofing, also can be used as the inboard Waterproof Breathable bed course of skin dry-hang ornament materials.The used nonwoven polypropylene fabric of this composite is common spun-bond process nonwoven polypropylene fabric, though this composite has excellent waterproofing and moisture-penetration performances, its integral intensity performance has much room for improvement.
The inventor also discloses the polyurethane/terylene non-woven fabric with Waterproof Breathable function four layers of composite, its preparation method and purposes that a kind of glass fiber reticular cloth strengthens in patent of invention CN101775203A.When processing waterproof humidity-permeant film with the pouring film method, be that enhancement layer and terylene non-woven fabric are surface layer and bottom with the glass fiber reticular cloth, through the compound four layers of composite of high strength of processing of hot pressing with Waterproof Breathable function with polyurethane, inorganic filler and processing aid.The composite of this invention can be used as the Waterproof Breathable bed course of sloping formula roofing or as the skin dry-hang is decorated and insulation material is inboard Waterproof Breathable laying.The composite of this invention not only waterproofing and moisture-penetration performances is excellent but also have high strength, but costs an arm and a leg.
US5415924 discloses the Preparation method and use that a kind of three layers of composite water-proof pass through wet stock; Its intermediate layer is the polyurethane film of Waterproof Breathable; Inside and outside two-layer be polyurethane or polyester textile; The compound of three interlayers realizes that by PUR point is sticking product is mainly used in togs, like diving dress, anorak and ice-sports clothes etc.This composite does not belong to polyolefine material, is not used in building field yet.
The Waterproof Breathable composite that is used for building field except need have outstanding Waterproof Breathable, also need possess excellent strength character.The intensity of Waterproof Breathable composite is mainly embodied by non-woven fabrics of synthetic fiber such as nonwoven polypropylene fabric and terylene non-woven fabric.Although the intensity of terylene non-woven fabric obviously greater than the intensity of nonwoven polypropylene fabric, also is difficult to obtain high-intensity especially Waterproof Breathable composite, therefore, only depend on the compound high strength that can't realize the Waterproof Breathable composite of non-woven fabrics of synthetic fiber.The polyolefin grid cloth is one of important reinforcing material that is used in the polymer matrix composite field; Up to the present, Shang Weijian is with the nonwoven polypropylene fabric of polyolefin grid cloth enhancing and by the nonwoven polypropylene fabric of polyolefin grid cloth enhancing and the relevant report of the compounded high-strength waterproof moisture-penetrating composite material of polyolefin Waterproof Breathable microporous barrier.
Summary of the invention
The technical problem that the present invention will solve provides a kind of polyolefin grid cloth, and preparation method thereof and the nonwoven polypropylene fabric that strengthens in preparation polyolefin grid cloth and the application in the Waterproof Breathable composite.
For reaching above-mentioned purpose, polyolefin grid cloth of the present invention can be used for the enhancing of nonwoven polypropylene fabric under the adhesive-free condition; It comprises the component of following weight portion: polymer 90-97 part, elastomer 3-10 part, 1～3 part of dispersant; 1～4 part of lubricant, 1～3 part of light stabilizer, antioxidant 1-3 part; Wherein preferred polymers is 94 parts, 5 parts on elastomer, and 2 parts of dispersants, 1 part of lubricant, 2 parts of light stabilizers, 2 parts in antioxidant, said polymer are polypropylene or polyethylene, said elastomer is an ethylene-octene copolymer.
Polyolefin grid cloth of the present invention, wherein preferred said dispersant is an ethylene bis stearamide, said lubricant is a potassium stearate; Said light stabilizer is two (2,2,6; The 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters, said antioxidant are tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester.
The preparation method of polyolefin grid cloth of the present invention; May further comprise the steps: the above-mentioned raw materials component is prepared into joint stock wire or monofilament with plastic wire-drawing unit (this area common equipment); Above-mentioned joint stock wire or monofilament are made into grid cloth with the grid cloth braiding machine, and preferred grid cloth mesh is 2 * 2mm or 4 * 4mm.As, the raw material components of above-mentioned weight portion is extruded wire drawing with plastics circle silk wire drawing units (Tianfeng Plastic Machinery Factory, Zhejiang), process 140F (or 180F) joint stock wire of forming by 17 denier monofilaments, or the monofilament at 500 dawn (or 100 dawn).Said joint stock wire lump together by multi-filament one be called joint stock wire, be to lump together like the 140F joint stock wire by 140 rhizoids, commonly used in the industry have 72F, 140F, a 200F etc.It is 2 * 2mm or 4 * 4mm that above-mentioned plastics joint stock wire (or monofilament) is woven into mesh with grid cloth braiding machine (AET788 China Ai Erte machinery Co., Ltd), the plastic silk screen lattice cloth of fabric width 160mm.
The application of polyolefin grid cloth of the present invention; Use it for nonwoven polypropylene fabric for preparing the enhancing of polyolefin grid cloth or the composite that contains microporous barrier; Said microporous barrier can be commonly used MIcroporous polyolefin film or a microporous teflon membran of this area, and preferred Granted publication number is the disclosed water-proof air-moisture-permeable microporous barrier of patent of CN101659769B.
The nonwoven polypropylene fabric that polyolefin grid cloth of the present invention strengthens; Comprise nonwoven polypropylene silk layer and said polyolefin grid layer of cloth; Said polyolefin grid layer of cloth is between said nonwoven polypropylene layer, and promptly said nonwoven polypropylene silk layer (preferably two-layer) lays respectively at the upper and lower surface of polyolefin grid layer of cloth; Preferred said polypropylene fibre silk contains the component of following weight portion: polypropylene 90-97 part, elastomer 3-10 part, 1～3 part of dispersant, 1～4 part of lubricant; 1～3 part of light stabilizer, antioxidant 1-3 part, said elastomer is an ethylene-octene copolymer; Dispersant is an ethylene bis stearamide, and said lubricant is a potassium stearate, and said light stabilizer is two (2; 2,6, the 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters; Said antioxidant is tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester, and promptly the composition of polypropylene fibre silk can be identical with the composition of polyolefin grid cloth in the nonwoven polypropylene fabric.
The preparation method of the nonwoven polypropylene fabric that polyolefin grid cloth of the present invention strengthens; May further comprise the steps: when preparing nonwoven polypropylene fabric with bimodulus head spun-bond process; When the first spray silk die head spray silk lapping was accomplished, (film, nonwoven fabric and grid cloth preparation all were rolling when accomplishing, debatching during use with the debatching of said polyolefins grid cloth; This is this area operation commonly used) be tiled on the polypropylene fibre silk screen; And on the polyolefin grid cloth, carry out the spray silk lapping of the second spray silk die head, through hot pressing roller heat pressure adhesive, promptly get.As; The raw material of above-mentioned weight portion is gone up preparation spunbond polypropylene nonwoven fabric with bimodulus head spunbond polypropylene non-woven fabric production line (city of Kunshan three sheep Textile Machinery Co., Ltd), and (manufacturing of nonwoven polypropylene fabric has four kinds of different process; Be spun-bond process, meltblown, water acupuncture manipulation and needle point method; Spunbond process is simpler, and nonwoven fabric intensity is better; The meltblown complex process, but the intensity of the nonwoven fabric of other technology of nonwoven fabric strength ratio of preparation is high; The advantage of water acupuncture manipulation and needle point method nonwoven fabric mainly is a good hand touch).When preparation spunbond polypropylene nonwoven fabric; The spray silk lapping that debatching was tiled on the polypropylene fibre silk screen and gets into the second spray silk die head when polyolefin grid cloth that the front is obtained was accomplished in the first spray silk die head spray silk lapping; This moment, above-mentioned grid cloth was clipped among the two-layer nonwoven polypropylene silk screen equably; Utilize ethylene-octene copolymer to hang down melting range (70～90 ℃); Bonding through hot pressing roller hot pressing (hot pressing temperature 145-150 ℃), processing ectonexine is the nonwoven polypropylene silk, and the intermediate layer is the nonwoven polypropylene fabric of the fabric width (width) of polyolefin grid cloth for the polyolefin grid cloth enhancing of 160mm.
A kind of composite of the present invention comprises the nonwoven polypropylene fabric layer that microporous film layers and two-layer said polyolefins grid cloth strengthen, and said microporous film layers is between the nonwoven polypropylene fabric layer that said polyolefin grid cloth strengthens.Wherein preferred said microporous barrier is that the mixture that contains polypropylene, LLDPE and ethylene-octene copolymer prepares by this area conventional method; Can be the patent documentation of CN101659769B referring to notification number specifically, the weight proportion of wherein more preferably said polypropylene, LLDPE and ethylene-octene copolymer be (70-80): (10-15): (10-15).
The preparation method of composite of the present invention; May further comprise the steps: when the preparation microporous barrier; Microporous barrier directly gets into the composite structure of being made up of a line hot pressing roller and lining roller through chill roll, gap bridge roller and preheat roll without rolling; The nonwoven polypropylene fabric that the said polyolefins grid cloth strengthens after debatching, preheating (preheat temperature 70-75 ℃) from the said microporous barrier synchronous inlet point hot pressing in the both sides up and down composite structure of traffic direction forward; By between polypropylene fusing point and LLDPE and ethylene-octene copolymer fusing point than big-difference; Roll surface has the effect of hot pressing roller with the lining roller of the projection of being uniformly distributed with structure, realizes that the some hot pressing under the adhesive-free condition of above-mentioned trilaminate material is compound, thereby processes composite of the present invention.Wherein, the hot pressing combined temp is 115～140 ℃, is preferably 120～130 ℃.
Building field is used it in the application of composite of the present invention, as the Waterproof Breathable bed course of roofing, the Waterproof Breathable laying that the exterior wall dried hanging formula is decorated or insulation material is inboard.
The present invention will contain the polyolefin grid cloth of elastomer (ethylene-octene copolymer); Process the enhancement mode nonwoven polypropylene fabric with secondary lapping method; This enhancement mode nonwoven polypropylene fabric can be compound with the Waterproof Breathable microporous barrier, thereby prepare high-intensity waterproof and breathable (wetting) composite.Testing result shows that the Air permenbility of composite of the present invention can reach 0.28～0.35cm
3/ cm
2.s, vapor transfer rate is up to 3100～3900g/m
2.24h, water resistance is up to 0.020～0.024MPa, and longitudinal tensile strength and transverse tensile strength are respectively up to 540～600N/5cm and 470～500N/5cm.
The specific embodiment
Below in conjunction with embodiment and test data, do more detailed explanation with other technical characterictic and advantage to the present invention is above-mentioned.
Embodiment 1
With polypropylene (PP YARN, Maoming branch company of China Petrochemical Industry) 94Kg, ethylene-octene copolymer (6202; Exxon Mobil) 5Kg, ethylene bis stearamide 2Kg, potassium stearate 1Kg; Two (2,2,6; The 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters 2Kg and tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester 2Kg mixes in high-speed mixer and low speed mixer, is drawn into the 140F joint stock wire of being made up of 17 denier monofilaments with plastics circle silk wire drawing unit (Tianfeng Plastic Machinery Factory, Zhejiang) melt-out spinning.
Using the grid cloth braiding machine to be woven into mesh above-mentioned plastics joint stock wire is 2 * 2mm, the polyolefin grid cloth of fabric width 160mm.
With polypropylene (2040, Shanghai match section petrochemical industry) 95Kg, ethylene-octene copolymer (6202; Exxon Mobil) 5Kg, ethylene bis stearamide 2Kg, potassium stearate 1Kg; Two (2,2,6; The 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters 2Kg and tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester 2Kg mixes in high-speed mixer and low speed mixer.The above-mentioned raw material that mixes is prepared the spunbond polypropylene nonwoven fabric with bimodulus head spunbond polypropylene non-woven fabric production line (city of Kunshan three sheep Textile Machinery Co., Ltd).When preparation spunbond polypropylene nonwoven fabric; With the spray silk lapping that debatching is tiled on the polypropylene fibre silk screen and gets into the second spray silk die head when the first spray silk die head spray silk lapping of bimodulus head spunbond polypropylene non-woven fabric production line is accomplished of said polyolefins grid cloth; Bonding through hot pressing roller hot pressing (150 ℃); Processing ectonexine is the nonwoven polypropylene silk, and the intermediate layer is that the fabric width of plastic silk screen lattice cloth is the nonwoven polypropylene fabric of the plastic silk screen lattice cloth enhancing of 160mm.To number be that stretching pore type waterproof and breathable (wet) microporous barrier of polypropylene/LLDPE/ethylene-octene copolymer co-mixing system of the technology preparation of CN101659769B directly gets into by a line hot pressing roller and serves as a contrast the composite structure (Wuhan modern plastics machine die Co., Ltd) that roller is formed through chill roll (25 ℃), gap bridge roller (25 ℃) and preheat roll (75 ℃) without rolling by patent announcement; Inside and outside two-layer above-mentioned plastic silk screen lattice cloth enhancement mode nonwoven polypropylene fabric after debatching, preheating from the above-mentioned microporous barrier synchronous inlet point hot pressing in the both sides up and down composite structure of traffic direction forward; Through putting the compound intermediate layer that is prepared into of hot pressing is microporous barrier, and skin is the enhancement mode Waterproof Breathable composite of plastic silk screen lattice cloth enhancement mode nonwoven polypropylene fabric up and down.Wherein, hot combined temp is 125 ℃.Enhancement mode Waterproof Breathable performance of composites test result is seen table 2.
Embodiment 2-12
Prescription of the nonwoven polypropylene fabric that the polyolefin grid cloth strengthens and preparation method thereof, intermediate layer are microporous barrier, preparation process and the condition of outer composite for polyolefin grid cloth enhancement mode nonwoven polypropylene fabric be with embodiment 1 up and down.Difference is, polyolefin grid cloth component formula, polyolefin grid cloth mesh size etc. are as shown in table 1 below, representes the kind of polymer in the polyolefin grid cloth in the table 1 in the second hurdle bracket.For the process conditions among the preparation method of the present invention (like hot pressing roller hot pressing temperature, equipment etc.), be simply to adjust according to the amount or the practical operation situation of adding component, there is not influence basically for the performance of composites that obtains.
Among the comparative example 1-2, all do not contain elastomeric ethylene-octene copolymer in the component formula of polypropylene fibre silk in polyolefin grid cloth (seeing the listed prescription of comparative example 1,2 row in the table 1) and the nonwoven polypropylene fabric, other conditions are with embodiment 1.
In the comparative example 3; No polyolefin grid cloth in the composite; In the preparation nonwoven polypropylene fabric, the component of preparation polypropylene fibre silk does not contain elastomeric ethylene-octene copolymer (comparative example 3 delegation are for producing each component formula of polypropylene fibre silk in the table 1), and other conditions are with embodiment 1; Obtaining a kind of intermediate layer is microporous barrier, outer for not containing the composite of elastomeric nonwoven polypropylene fabric.
In the comparative example 4, contain elastomeric ethylene-octene copolymer (seeing table 1 comparative example 4 delegation) in the component of polyolefin grid cloth, not containing ethylene-octene copolymer in the nonwoven polypropylene fabric in the component of polypropylene fibre silk [is polypropylene 95Kg; Ethylene bis stearamide 2Kg, potassium stearate 1Kg, two (2; 2,6, the 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters 2Kg; Tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester 2Kg], other conditions are with embodiment 1.
In the comparative example 5, do not contain elastomeric ethylene-octene copolymer (seeing table 1 comparative example 5 delegation) in the component of polyolefin grid cloth, contain in the component of polypropylene fibre silk in the nonwoven polypropylene fabric ethylene-octene copolymer [be polypropylene 95Kg, ethylene-octene copolymer 5Kg; Ethylene bis stearamide 2Kg, potassium stearate 1Kg, two (2; 2,6, the 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters 2Kg; Tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester 2Kg], other conditions are with embodiment 1.
Above-mentioned performance of composites test result is seen table 2.
The prescription of table 1 embodiment 2-12, each component of comparative example 1-3 and grid cloth mesh size
Test Example 1
The Air permenbility of embodiment of the invention 1-12 prepared composite material, comparative example 1-5 prepared composite material, vapor transfer rate, water resistance, vertical tension and horizontal tensile property index are tested according to national standard: measure Air permenbility with homemade Y-561 type two-box type low pressure Air permenbility test instrument (test of GB/T 5453-1997 textile fabric Air permenbility); Vapor transfer rate is measured (GB/T 12704-91 textile fabric vapor transfer rate method of testing drier method) with the positive agar diffusion method of drier; Water resistance (resistance to hydrostatic pressure) is measured (GB/T 4744-1991, water permeability resistance is measured hydrostatic test) with YG-812 type hydraulic pressure appearance; Endwise tensile strength and transverse tensile strength are measured according to GB/T 4757-1997 (textile fabric test for tensile strength).Measure the result and see table 2.
Can know that by table 2 vertical tension of the Waterproof Breathable composite that is strengthened by the polyolefin grid cloth and transverse tensile strength are much larger than vertical tension and transverse tensile strength without the Waterproof Breathable composite (comparative example 3) of grid cloth enhancing.
Also can know by table 2; When not containing elastomer in the used polymer of polyolefin grid cloth and spunbond polypropylene nonwoven fabric (comparative example 1,2); Because bonding bad between polyolefin grid cloth and the spunbond polypropylene nonwoven fabric causes the endwise tensile strength and the transverse tensile strength of final Waterproof Breathable composite to decline to a great extent.
Also can know by table 2; In the polyolefin grid cloth, contain elastomer; When not containing elastomer in the nonwoven polypropylene fabric (comparative example 4); The endwise tensile strength of the composite that obtains and transverse tensile strength descend, and are lower than and in the polyolefin grid cloth, do not contain elastomer, the intensity of the composite that (comparative example 5) obtains when containing elastomer in the nonwoven polypropylene fabric.
Can know also that by table 2 reinforced effects (embodiment 1-6) of the grid cloth that is made into by the plastics joint stock wire is superior to the reinforced effects (embodiment 7-10) of the grid cloth that material list silk weaving to some extent becomes
Can know also that by table 2 mesh that the reinforced effects the during mesh of plastic silk screen lattice cloth less (embodiment 1-4) is superior to plastic silk screen lattice cloth is the reinforced effects when big (embodiment 5,6,8).
Composite each item physical property that table 2 the foregoing description and comparative example obtain
It can be this area other auxiliary agent types commonly used that the present invention produces used dispersant, lubricant, light stabilizer, the anti-oxidant of polypropylene fibre silk in polyolefin grid cloth and the nonwoven polypropylene fabric, is not limited to the used auxiliary agent of the foregoing description, and the inventor finds through long-time knowhow; Select ethylene bis stearamide for use when dispersant, lubricant is used potassium stearate, and light stabilizer is two (2; 2,6, the 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters; Antioxidant is tricresyl phosphite (2; The 4-di-tert-butyl-phenyl) during ester, can make filament keep better physical property in process of production, like glossiness, oxidative resistance etc.
Test Example 2 elastomeric additions are to the influence of composite Air permenbility, vapor transfer rate, water resistance, vertical tension and horizontal tensile property, and method of testing is with Test Example 1
The weight proportion of each component is that the inventor is through consulting the preferred range value that a large amount of data and test many times obtain in the polyolefin grid cloth of the present invention; Promptly work as polymer 90-97 part, elastomer 3-10 part, 1～3 part of dispersant; 1～4 part of lubricant; 1～3 part of light stabilizer during antioxidant 1-3 part, can make composite of the present invention have waterproof preferably, pass through on the basis of wet, permeability and also have good TENSILE STRENGTH.Can know that by the data in the table 2 Air permenbility of composite of the present invention can reach 0.28～0.35cm
3/ cm
2.s, vapor transfer rate is up to 3100～3900g/m
2.24h, water resistance is up to 0.020～0.024MPa, and longitudinal tensile strength and transverse tensile strength are respectively up to 540～600N/5cm and 470～500N/5cm.Only lift following Comparative Examples explanation.
Comparative Examples 1
The addition of ethylene-octene copolymer is 2.5kg in embodiment 1, and other conditions are constant, and with each item physical property of Test Example 1 described method of testing measurement composite, the result sees table 3.
Comparative Examples 2
The addition of ethylene-octene copolymer is 2.0kg in embodiment 1, and other conditions are constant, and with each item physical property of Test Example 1 described method of testing measurement composite, the result sees table 3.
Comparative Examples 3
The addition of ethylene-octene copolymer is 1.0kg in embodiment 1, and other conditions are constant, and with each item physical property of Test Example 1 described method of testing measurement composite, the result sees table 3.
Comparative Examples 4
The addition of ethylene-octene copolymer is 11kg in embodiment 1, and other conditions are constant, and with each item physical property of Test Example 1 described method of testing measurement composite, the result sees table 3.
Comparative Examples 5
The addition of ethylene-octene copolymer is 15kg in embodiment 1, and other conditions are constant, and with each item physical property of Test Example 1 described method of testing measurement composite, the result sees table 3.
The addition of table 3 ethylene-octene copolymer is to the influence of composite each item physical property
Can know that from the test result of table 3 consumption of elastomeric ethylene-octene copolymer has appreciable impact to the tensile strength of composite, and to the not influence of Air permenbility, vapor transfer rate and resistance to hydrostatic pressure performance.Reason is that with the minimizing of ethylene-octene copolymer consumption, bonding variation when the nonwoven fabric that the preparation grid cloth strengthens makes the reinforced effects variation of grid cloth to nonwoven fabric, thereby makes the composite material tensile strength variation; When the ethylene-octene copolymer consumption is too much; It is because the effect of ethylene-octene copolymer provides caking property with elasticity but the too late polypropylene of intensity that the tensile strength of composite descends; Although bonding improving when the nonwoven fabric that the preparation grid cloth strengthens; But because the too much existence of ethylene-octene copolymer, make grid cloth on the contrary, finally make the composite material tensile strength variation the reinforced effects variation of nonwoven fabric.The consumption of ethylene-octene copolymer does not have the reason of influence to be to Air permenbility, vapor transfer rate and resistance to hydrostatic pressure performance; The Air permenbility of composite, vapor transfer rate and resistance to hydrostatic pressure performance depend on the performance of waterproof ventilated membrane used in the composite, and the performance of the nonwoven fabric that strengthens with grid cloth is irrelevant.
Application examples
Waterproof and breathable of the present invention (wetting) composite compared with prior art has higher intensity, and longitudinal tensile strength and transverse tensile strength are respectively up to 540～600N/5cm and 470～500N/5cm.Can be used for building field, as the Waterproof Breathable bed course of roofing, the Waterproof Breathable laying that the exterior wall dried hanging formula is decorated or insulation material is inboard.Air permenbility can reach 0.28～0.35cm
3/ cm
2.s, vapor transfer rate is up to 3100～3900g/m
2.24h, water resistance is up to 0.020～0.024MPa.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. a polyolefin grid cloth is characterized in that, it comprises the component of following weight portion: polymer 90-97 part, elastomer 3-10 part, 1～3 part of dispersant, 1～4 part of lubricant, 1～3 part of light stabilizer, antioxidant 1-3 part; Wherein preferred polymers is 94 parts, 5 parts on elastomer, and 2 parts of dispersants, 1 part of lubricant, 2 parts of light stabilizers, 2 parts in antioxidant, said polymer are polypropylene or polyethylene, said elastomer is an ethylene-octene copolymer.
2. polyolefin grid cloth according to claim 1 is characterized in that: said dispersant is an ethylene bis stearamide, and said lubricant is a potassium stearate; Said light stabilizer is two (2; 2,6, the 6-tetramethyl-piperidyl) certain herbaceous plants with big flowers two acid esters; Said antioxidant is tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester.
3. method for preparing claim 1 or 2 said polyolefin grid cloth; It is characterized in that; May further comprise the steps: claim 1 or 2 described raw material components are prepared into joint stock wire or monofilament with the plastic wire-drawing unit; Preferred joint stock wire is made into grid cloth with above-mentioned joint stock wire or monofilament with the grid cloth braiding machine, and the mesh of preferred said grid cloth is 2 * 2mm or 4 * 4mm.
4. the application of claim 1 or 2 said polyolefin grid cloth is characterized in that: use it for nonwoven polypropylene fabric for preparing the enhancing of polyolefin grid cloth or the composite that contains microporous barrier.
5. the nonwoven polypropylene fabric that strengthens of a polyolefin grid cloth, it is characterized in that: comprise nonwoven polypropylene silk layer and claim 1 or 2 described polyolefin grid layer of cloths, said polyolefin grid layer of cloth is between said nonwoven polypropylene silk layer; Preferred said polypropylene fibre silk contains the component of following weight portion: polypropylene 90-97 part; Ethylene-octene copolymer 3-10 part, 1～3 part of dispersant, 1～4 part of lubricant; 1～3 part of light stabilizer, antioxidant 1-3 part.
6. the preparation method of the nonwoven polypropylene fabric that strengthens of the said polyolefin grid cloth of claim 5; It is characterized in that, may further comprise the steps: when preparing nonwoven polypropylene fabric, when the first spray silk die head spray silk lapping is accomplished with bimodulus head spun-bond process; Claim 1 or 2 described polyolefin grid cloth debatchings are tiled on the polypropylene fibre silk screen; And on the polyolefin grid cloth, carry out the spray silk lapping of the second spray silk die head, through hot pressing roller heat pressure adhesive, promptly get.
7. composite is characterized in that: comprise the nonwoven polypropylene fabric layer that the described polyolefin grid cloth of microporous film layers and claim 5 strengthens, said microporous film layers is between the nonwoven polypropylene fabric layer that said polyolefin grid cloth strengthens.
8. composite according to claim 7; It is characterized in that: said microporous barrier contains polypropylene, LLDPE and ethylene-octene copolymer, and the weight proportion of said polypropylene, LLDPE and ethylene-octene copolymer is (70-80): (10-15): (10-15).
9. the method for preparing claim 7 or 8 said composites; It is characterized in that; May further comprise the steps: when the preparation microporous barrier, microporous barrier directly gets into the composite structure of being made up of a line hot pressing roller and lining roller through chill roll, gap bridge roller and preheat roll without rolling, and the nonwoven polypropylene fabric that the said polyolefin grid cloth of claim 5 strengthens gets into composite structure in the both sides up and down of traffic direction forward from said microporous barrier synchronously after debatching, preheating; Hot pressing is compound, promptly gets.
10. the application of the described composite of claim 7 is characterized in that: use it for building field, as the Waterproof Breathable bed course of roofing, the Waterproof Breathable laying that the exterior wall dried hanging formula is decorated or insulation material is inboard.
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| CN103009759A (en) * | 2013-01-05 | 2013-04-03 | 南通康达复合材料有限公司 | Method for manufacturing anti-flaming waterproof ventilated cushion |
| CN106042535A (en) * | 2016-03-28 | 2016-10-26 | 山东俊富无纺布有限公司 | Heat-insulating composite for building walls and preparation method thereof |
| JP2018048432A (en) * | 2016-09-15 | 2018-03-29 | ユニチカ株式会社 | Method for producing mesh woven fabric for molding |
| CN108437487A (en) * | 2018-04-08 | 2018-08-24 | 武汉纺织大学 | A kind of polyphenyl thioether composite material and preparation method thereof of high content of glass fiber |
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| CN108437487A (en) * | 2018-04-08 | 2018-08-24 | 武汉纺织大学 | A kind of polyphenyl thioether composite material and preparation method thereof of high content of glass fiber |
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| CN111605279A (en) * | 2020-06-30 | 2020-09-01 | 韩克军 | Constant-temperature polyethylene composite material and production method thereof |
| CN111716855A (en) * | 2020-06-30 | 2020-09-29 | 韩克军 | Self-cleaning polyethylene composite material and production method thereof |
| CN115972727A (en) * | 2023-02-03 | 2023-04-18 | 广州市金浪星非织造布有限公司 | A kind of high-strength grid cloth composite polypropylene non-woven fabric and its preparation method |
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