CN106220984A - A kind of high anti-tearing strength EVA waterproof sheet and preparation method thereof - Google Patents
A kind of high anti-tearing strength EVA waterproof sheet and preparation method thereof Download PDFInfo
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- CN106220984A CN106220984A CN201610664129.1A CN201610664129A CN106220984A CN 106220984 A CN106220984 A CN 106220984A CN 201610664129 A CN201610664129 A CN 201610664129A CN 106220984 A CN106220984 A CN 106220984A
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- waterproof sheet
- high anti
- tearing strength
- antioxidant
- eva
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of high anti-tearing strength EVA waterproof sheet and preparation method thereof.A kind of high anti-tearing strength EVA waterproof sheet, it is made up of the raw material of following mass percent: the EVA of 10 35%, the polyethylene of 55 85%, the tackifying resin of 5 10%, the oiliness peroxide initiator of 0.03 0.15%, the antioxidant of 0.1 0.5%, the UV absorbers of 0.2 0.5%, the rare earth oxide of surplus.The preparation method of a kind of high anti-tearing strength EVA waterproof sheet, step is: melt extrude, molding cools down.EVA waterproof sheet prepared by the present invention has tear resistance and the caking property of excellence.The preparation method of the present invention is simple, and the waterproof sheet of preparation has higher fracture tensile strength, elongation at break, tear fracture intensity, low-temperature bending, impermeability.
Description
Technical field
The present invention relates to a kind of high anti-tearing strength EVA waterproof sheet and preparation method thereof.
Background technology
EVA waterproof sheet is a kind of waterproof, seepage control type barrier material of raw material based on EVA, and dominant mechanism is with plastics
The impermeability of sheet material cuts off leak paths, and the tensile strength bigger with it and elongation percentage bear hydraulic pressure and adaptive deformation.At present,
EVA waterproof sheet most common method is that material carries out melt blending modification, the method letter at single screw extrusion machine through T-shaped die head
Single practical, it is not necessary to particularly expensive equipment, can produce continuously, the response time is shorter.Compared with polyethylene water-proof sheets, by
In its good pliability, caking property, resistance to impact and have preferable lower temperature resistance, environmental stress crack resistance, nontoxic etc.
Advantage, is widely used in the civil engineering industries such as highway, railway, civil buildings.
In China, EVA waterproof sheet is widely used due to its excellent pliability and application property, but traditional E VA is prevented
Water sheet material finds that EVA waterproof sheet product quality cannot ensure during actual production and use, is mainly reflected in product
Transverse and longitudinal mechanical property is uneven, the especially transverse and longitudinal tearing strength of sheet material, and poor with the caking property of base material.EVA flashing
Material is mainly affected by screw speed, extrusion temperature, rate of feeding etc. in extrusion, simultaneously in plasticizing process, and sheet material edge
The most machine-direction oriented degree of processing flow direction to improve, longitudinal strength improves, and causes sheet material cross direction tear strength, and hot strength drops
Low, combination property declines.In order to solve the problems referred to above that EVA exists, researcher is attempted changing heat stretching process, controlling inflation
Than, adjust membrana oralis gap, add the methods such as highly polar material and overcome the relatively low problem of existing thin film tearing toughness.
The Chinese patent of publication number CN203831866U, discloses a kind of EVA composite sheet double-sided self-adhesive waterproof coiled materials, institute
Stating waterproof roll surface layer with bottom is PE protecting film, and described waterproof roll intermediate layer is EVA composite sheet, and described EVA is combined
Sheet material both sides arrange modified pitch self-adhesive glue layer, five-layer structure one-shot forming；Described EVA composite sheet upper and lower surface is provided with
Latticed projection.This patent is started with from configuration aspects, it is intended that improve the intensity of waterproof sheet, especially EVA sheet；Arrange netted
Reinforcement, but, the waterproof roll of this kind of structure, preparation method is relative complex, and arranging of reinforcement must be that ratio is more uniform,
Otherwise, the stress weak spot of sheet material can be formed, easily cause the damage inactivation of whole sheet material；On the other hand, its water resistance takes
Certainly in waterproof ability and the physical property of core layer EVA, the waterproof ability of EVA easily becomes overall structure water resistance and physics
The bottleneck of performance.
Waterproof sheet product of the prior art, physical property and water resistance all need raising further badly.
Summary of the invention
It is an object of the invention to provide a kind of high anti-tearing strength EVA waterproof sheet and preparation method thereof.
The technical solution used in the present invention is:
A kind of high anti-tearing strength EVA waterproof sheet, it is made up of the raw material of following mass percent: 10-35%'s
The polyethylene of EVA, 55-85%, the tackifying resin of 5-10%, the oiliness peroxide initiator of 0.03-0.15%, 0.1-
The antioxidant of 0.5%, the UV absorbers of 0.2-0.5%, the rare earth oxide of surplus.
VA content in described EVA is 5-40%.
Described tackifying resin is at least one in polyolefin elastomer, polyolefin plastomers.
Described peroxide initiator be hydroperoxides, dialkyl peroxide, diacyl peroxide, peroxy esters,
At least one in peroxycarbonates, ketone peroxide.
Described antioxidant is Hinered phenols antioxidant, phosphite ester kind antioxidant, monothioester kind antioxidant, compound antioxygen
At least one in agent.
Described UV absorbers is salicylate type ultraviolet light absorber, benzophenone type ultraviolet light absorber, benzene
And triazole type UV absorbers, nickel salt and nickel chelate class UV absorbers, group-substituted acrylonitrile UV absorbers, three
At least one in piperazine class UV absorbers.
Described rare earth oxide is europium oxide, Gadolinia., ytterbium oxide, holmia, Erbia, Dithulium trioxide or ytterbium oxide
A kind of.
The preparation method of a kind of high anti-tearing strength EVA waterproof sheet, step is: melt extrude, molding cools down.
The invention has the beneficial effects as follows:
The preparation method of the present invention is simple, the waterproof sheet of preparation have higher fracture tensile strength, elongation at break,
Tear fracture intensity, low-temperature bending, impermeability.
Detailed description of the invention
A kind of high anti-tearing strength EVA waterproof sheet, it is made up of the raw material of following mass percent: 10-35%'s
The polyethylene of EVA, 55-85%, the tackifying resin of 5-10%, the oiliness peroxide initiator of 0.03-0.15%, 0.1-
The antioxidant of 0.5%, the UV absorbers of 0.2-0.5%, the rare earth oxide of surplus.
Preferably, a kind of high anti-tearing strength EVA waterproof sheet, it is made up of the raw material of following mass percent: 10-
The polyethylene of EVA, 60-80% of 30%, the tackifying resin of 5-10%, the oiliness peroxide initiator of 0.03-0.15%,
The antioxidant of 0.1-0.5%, the UV absorbers of 0.2-0.5%, the rare earth oxide of surplus.
It is further preferred that a kind of high anti-tearing strength EVA waterproof sheet, it is by the raw material system of following mass percent
Become: the polyethylene of EVA, 65-75% of 15-25%, the tackifying resin of 5-10%, the oiliness peroxide of 0.03-0.15% draw
Send out agent, the antioxidant of 0.1-0.5%, the UV absorbers of 0.2-0.5%, the rare earth oxide of surplus.
Preferably, the VA content in described EVA is 5-40%.
Preferably, described tackifying resin is at least in polyolefin elastomer (POE), polyolefin plastomers (POP)
Kind.
Preferably, described peroxide initiator be hydroperoxides, dialkyl peroxide, diacyl peroxide,
At least one in peroxy esters, peroxycarbonates, ketone peroxide；It is further preferred that be 2,5-dimethyl-2,5-bis-
In (t-butylperoxy) hexane (double-25), tert-butyl hydroperoxide, cumyl peroxide or benzoyl peroxide at least
A kind of.
Preferably, described antioxidant be Hinered phenols antioxidant, phosphite ester kind antioxidant, monothioester kind antioxidant,
At least one in composite antioxidant；It is further preferred that be 1010,168,1076,1098,245,6921, S9228,
DHT246, compound B215, compound B225, at least one in DLTP, DSTP, TNPP, TPP, CA, BHT；The most preferred
, for above-mentioned antioxidant mutually uses, there is synergistic compound, for example, Hinered phenols antioxidant and phosphite ester
The compound ligand of kind antioxidant, for example, antioxidant 1010, irgasfos 168 mass ratio are the compound of 1:1.
Preferably, described UV absorbers is salicylate type ultraviolet light absorber, the suction of benzophenone type ultraviolet light
Receive agent, benzotriazole UV absorbers, nickel salt and nickel chelate class UV absorbers, group-substituted acrylonitrile ultraviolet light is inhaled
Receive at least one in agent, triazines UV absorbers；It is further preferred that be UV-531, UV-326, UV-P, UV-329,
At least one in UV-328, UV-320, UV-770.
Preferably, described rare earth oxide be europium oxide, Gadolinia., ytterbium oxide, holmia, Erbia, Dithulium trioxide or
The one of ytterbium oxide.
The preparation method of a kind of high anti-tearing strength EVA waterproof sheet, step is: be placed in extruder by various raw materials molten
Melt blended, through T-shaped die head extrusion, cooling molding.
Below in conjunction with specific embodiment, the present invention is described further:
Embodiment 1:
Take EVA 500g, linear low density polyethylene LLDPE 1500g, antioxidant 1010 4g, light stabilizer UV-531
6g, peroxide initiator 2,5-2，5-dimethyl-2，5-di(t-butyl peroxy)2，5-hexane 0.8g, rare earth oxide Dithulium trioxide
(Tm2O3) 0.003mol mixes 10min on high-speed mixer, the material of above-mentioned mix homogeneously is put in single screw extrusion machine,
Setting single screw extrusion machine temperature as 180 DEG C, the T-shaped die head of the extruded machine of material, chill roll, carry-over pinch rolls, take-up roll obtain EVA and prevent
Water sheet material.The EVA waterproof sheet of gained is carried out quantitative measurement.
Embodiment 2:
Take EVA 500g, linear low density polyethylene LLDPE 1400g, tackifying resin polyolefin elastomer 100g,
Peroxide initiator 2,5-2，5-dimethyl-2，5-di(t-butyl peroxy)2，5-hexane 0.8g, antioxidant 1010 4g, ultraviolet light is inhaled
Receive agent UV-531 6g, rare earth oxide Dithulium trioxide (Tm2O3) 0.003mol mixes 10min on high-speed mixer, by above-mentioned mixed
Close uniform material to put in single screw extrusion machine, set single screw extrusion machine temperature as 180 DEG C, the T-shaped mould of the extruded machine of material
Head, chill roll, carry-over pinch rolls, take-up roll obtain EVA waterproof sheet.The EVA waterproof sheet of gained is carried out quantitative measurement.
Embodiment 3:
Take EVA 500g, linear low density polyethylene LLDPE 1400g, tackifying resin polyolefin elastomer 100g,
Peroxide initiator 2,5-2，5-dimethyl-2，5-di(t-butyl peroxy)2，5-hexane 1.4g, antioxidant 1010 4g, ultraviolet light is inhaled
Receive agent UV-531 6g, rare earth oxide Dithulium trioxide (Tm2O3) 0.006mol mixes 10min on high-speed mixer, by above-mentioned mixed
Close uniform material to put in single screw extrusion machine, set single screw extrusion machine temperature as 180 DEG C, the T-shaped mould of the extruded machine of material
Head, chill roll, carry-over pinch rolls, take-up roll obtain EVA waterproof sheet.The EVA waterproof sheet of gained is carried out quantitative measurement.
Embodiment 4:
Take EVA 700g, linear low density polyethylene LLDPE 1150g, tackifying resin polyolefin elastomer 150g,
Peroxide initiator 2,5-2，5-dimethyl-2，5-di(t-butyl peroxy)2，5-hexane 0.8g, antioxidant 1010 4g, ultraviolet light is inhaled
Receive agent UV-531 6g, rare earth oxide Dithulium trioxide (Tm2O3) 0.003mol mixes 10min on high-speed mixer, by above-mentioned mixed
Close uniform material to put in single screw extrusion machine, set single screw extrusion machine temperature as 180 DEG C, the T-shaped mould of the extruded machine of material
Head, chill roll, carry-over pinch rolls, take-up roll obtain EVA waterproof sheet.The EVA waterproof sheet of gained is carried out quantitative measurement.
Embodiment 5:
Take EVA 700g, linear low density polyethylene LLDPE 1150g, tackifying resin polyolefin elastomer 150g,
Peroxide initiator 2,5-2，5-dimethyl-2，5-di(t-butyl peroxy)2，5-hexane 1.4g, antioxidant 1010 4g, ultraviolet light is inhaled
Receive agent UV-531 6g, rare earth oxide Dithulium trioxide (Tm2O3) 0.006mol mixes 10min on high-speed mixer, by above-mentioned mixed
Close uniform material to put in single screw extrusion machine, set single screw extrusion machine temperature as 180 DEG C, the T-shaped mould of the extruded machine of material
Head, chill roll, carry-over pinch rolls, take-up roll obtain EVA waterproof sheet.The EVA waterproof sheet of gained is carried out quantitative measurement.
Table 1 is the key property of embodiment, including fracture tensile strength, percentage elongation, angle tear strength etc., by TB/T
3360.1-2014 standard testing.
Table 1
Claims (9)
1. a high anti-tearing strength EVA waterproof sheet, it is characterised in that: it is made up of the raw material of following mass percent:
The polyethylene of EVA, 55-85% of 10-35%, the tackifying resin of 5-10%, the oiliness peroxide initiator of 0.03-0.15%,
The antioxidant of 0.1-0.5%, the UV absorbers of 0.2-0.5%, the rare earth oxide of surplus.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 1, it is characterised in that: the VA in described EVA
Content is 5-40%.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 2, it is characterised in that: described polyethylene
For at least one in HDPE, LDPE, LLDPE, mPE.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 3, it is characterised in that: described thickening tree
Fat is at least one in polyolefin elastomer, polyolefin plastomers.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 4, it is characterised in that: described peroxide
Initiator is hydroperoxides, dialkyl peroxide, diacyl peroxide, peroxy esters, peroxycarbonates, ketone peroxidating
At least one in thing.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 5, it is characterised in that: described antioxidant
For at least one in Hinered phenols antioxidant, phosphite ester kind antioxidant, monothioester kind antioxidant, composite antioxidant.
A kind of high anti-tearing strength EVA waterproof sheet the most according to claim 6, it is characterised in that: described ultraviolet light
Absorbent be salicylate type ultraviolet light absorber, benzophenone type ultraviolet light absorber, benzotriazole UV absorbers,
In nickel salt and nickel chelate class UV absorbers, group-substituted acrylonitrile UV absorbers, triazines UV absorbers
At least one.
8. according to a kind of high anti-tearing strength EVA waterproof sheet described in any one in claim 1-7, it is characterised in that:
Described rare earth oxide is the one of europium oxide, Gadolinia., ytterbium oxide, holmia, Erbia, Dithulium trioxide or ytterbium oxide.
9. the preparation method of a kind of high anti-tearing strength EVA waterproof sheet described in claim 8, it is characterised in that: step is:
Melt extrude, molding cools down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610664129.1A CN106220984B (en) | 2016-08-12 | 2016-08-12 | A kind of high anti-tearing strength EVA waterproof sheets and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108467533A (en) * | 2018-04-19 | 2018-08-31 | 广东赛力克防水材料股份有限公司 | A kind of exposed conveying appliance resinae polymer membranes and preparation method thereof |
| CN108485047A (en) * | 2018-03-26 | 2018-09-04 | 铁科腾跃科技有限公司 | A kind of environment-friendly type EVA waterproof rolls and preparation method |
| CN109608751A (en) * | 2018-12-10 | 2019-04-12 | 福建中意铁科新型材料有限公司 | A kind of exposed conveying appliance polymer membranes and preparation method thereof |
| CN113696574A (en) * | 2021-11-01 | 2021-11-26 | 赛柯赛斯新能源科技(苏州)有限公司 | Flexible circuit board and processing technology thereof |
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| WO2000046279A1 (en) * | 1999-02-01 | 2000-08-10 | Mitsui Chemicals, Inc. | Water barrier sheet |
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2016
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| WO2000046279A1 (en) * | 1999-02-01 | 2000-08-10 | Mitsui Chemicals, Inc. | Water barrier sheet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108485047A (en) * | 2018-03-26 | 2018-09-04 | 铁科腾跃科技有限公司 | A kind of environment-friendly type EVA waterproof rolls and preparation method |
| CN108467533A (en) * | 2018-04-19 | 2018-08-31 | 广东赛力克防水材料股份有限公司 | A kind of exposed conveying appliance resinae polymer membranes and preparation method thereof |
| CN109608751A (en) * | 2018-12-10 | 2019-04-12 | 福建中意铁科新型材料有限公司 | A kind of exposed conveying appliance polymer membranes and preparation method thereof |
| CN113696574A (en) * | 2021-11-01 | 2021-11-26 | 赛柯赛斯新能源科技(苏州)有限公司 | Flexible circuit board and processing technology thereof |
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| CN106220984B (en) | 2018-07-27 |
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