CN1334306A - Multi-layer water-proof coiled composite material of polyethylene blend - Google Patents
Multi-layer water-proof coiled composite material of polyethylene blend Download PDFInfo
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- CN1334306A CN1334306A CN 00111227 CN00111227A CN1334306A CN 1334306 A CN1334306 A CN 1334306A CN 00111227 CN00111227 CN 00111227 CN 00111227 A CN00111227 A CN 00111227A CN 1334306 A CN1334306 A CN 1334306A
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Abstract
A multi-layer water-proof composite polyethylene blended coil is composed of primary water-proof layer and two surface layer which is non-woven polypropylene or terylene fabric. Said water-proof layer is a modified film prepared from linear low-density polyethylene, low-density polyethylene and modifier through blending. Its advantages are high productivity and high toughness.
Description
The application belongs to architectural waterproof material.
The technology close with the application is No. 89108466.5 patents " resin compound nonwoven cloth waterproof coiled material and production method thereof ".It is to do main water barrier with linear low density polyethylene, and each compound one deck polypropylene filament non-woven fabrics of two sides is made the enhancing rack, and its advantage mainly is that the surface has good roughness, can directly be bonded in curing in the basic unit with cement material, easily constructs etc.But, the feature of linear low density polyethylene is a narrow molecular weight distribution, when producing waterproof membrane with casting method production of linear new LDPE (film grade), following deficiency is arranged: 1, because there are the big characteristics of drawdown in it, effusive PE film transverse contraction is big to making, do not reach the fabric width requirement of design, only have 1.1 meters, do not reach the width of producing design as the fabric width of producing with 1.2 meters long die heads.2, linear low density polyethylene melt viscosity height, processibility is bad, and the waterproof membrane became uneven causes extruding hot square and increases, and energy consumption is big, and output descends, and 3, melt rheological property is special, it is unstable to flow, and easily produces fracture phenomena, causes waste product.4, the waterproof roll snappiness of producing is poor, and application property is not so good when doing waterproofing work.
With another close technology of the application ZL98222941.5 patent " double-side fibre thermal-insulation polyvinyl composite water-proof coiled material " that is the applicant it be on the polyethylene resin film two sides compound on layer of fibers and constituting; wherein polyethylene resin film is to extrude the film that forms by admixture trace assistant after linear low density polyethylene or new LDPE (film grade) or its mixing; compound terylene non-woven fabric or the end face terylene non-woven fabric bottom surface nonwoven polypropylene fabric of going up in two sides; its advantage is the heat-insulation and heat-preservation effect to be arranged when being used for roofing and remove the cement mortar protective layer from; reduce roofing load, save working procedure.But in application documents and unexposed mixing formula, its lamination layer structure is only disclosed.
The application's purpose, be to overcome above-mentioned deficiency, raw material to main water barrier further improves, proposing a kind of blending and modifying scheme and blend that changes processing performance of linear low density polyethylene specifically fills a prescription, and the waterproof roll of producing is being satisfied under the condition of tensile strength, flexible good, be convenient to construction.
The application's structure be in bottom surface, the waterproof membrane made after polymer blending top compound on nonwoven polypropylene fabric do strengthen non-skid finish or in the bottom surface, top compound on terylene non-woven fabric do and strengthen heat-barrier coating (bottom surface is done simultaneously and strengthened non-skid finish); or compound nonwoven polypropylene fabric, the compound terylene non-woven fabric of going up of end face gone up in bottom surface, wherein the application to the technical scheme of polymer blending is:
1, linear low density polyethylene and the blend of new LDPE (film grade) binary, its blend deal ratio is 100: 10～30; Or
2, linear low density polyethylene and the blend of multipolymer properties-correcting agent binary, its blend deal ratio is 100: 5～20; Or
3, linear low density polyethylene with new LDPE (film grade) and above-mentioned copolymer-modified dose of tertiary blending deal ratio is: 100: 10～20: 15～5:
Wherein above-mentioned copolymer-modified dose comprises following material, selects wherein a kind of:
Ethylene-vinyl acetate copolymer (english abbreviation EVA), styrene-butadiene-styrene multipolymer (english abbreviation SBS), styrene-isoprene multipolymer thermoplastic elastomers such as (english abbreviation SIS).
When implementing the application, blend method is that above-mentioned material is weighed by proportioning, in container hand mixing or in stirrer mechanical stirring just mix or mixing on mixing roll, granulation, then in producing the coiled material process in screw extrusion press melt blending, until film extrusion.This blend mainly is a physical blending, under the molten state between each polymer molecule the diffusion and convection current intensify, the shearing dissemination of screw extrusion press causes the grafting or the segmented copolymer of a part of polymer molecule degraded and formation some amount in addition, thereby promotes mixing between each component.
In above-mentioned copolymer-modified dose, can also be modifier in addition, as organosilicon polymer (PA with other low-molecular(weight)polymers
1); Fluoropolymer (PA
2); Low molecular weight polycaprolactone alkene (PA
3) etc.During blend since these polymer loadings in 100 parts of linear low density polyethylenes, add 2～5 parts and get final product, so can be earlier and the first blend of other auxiliary agents make modified master (colour batch) blend afterwards use.
The application's positively effect is:
Linear low density polyethylene and new LDPE (film grade) and copolymer blended after, improved the melt characteristic of linear low density polyethylene, melt viscosity reduces, melting index increases, thereby extrusion capacity is increased, and boosts productivity 20%.Mobile stable, reduced the melt fracture phenomenon.After making coiled material, both kept the tensile strength of original coiled material, and shrinkability is little in the horizontal, width increases by 2～4% than original, has satisfied manufacturing requirements.Also reduced the hardness of waterproof roll, particularly with thermoplastic elastomer blending after, improved snappiness, be easy to the construction.
Specific embodiment one:
Linear low density polyethylene (trade mark 7042) 100kg
New LDPE (film grade) (trade mark 1F7B) 30kg
Aid master batches 4kg
After above-mentioned substance mixed, suck in the forcing machine loading hopper melt blending in forcing machine with feeder in charging basket, through the die head casting film-forming, then through composite roll two sides vertical compression heat melt compound on non-woven fabrics, the cooling rolling forms water-proof coiled material product.
Other Example formulations such as table 1 have been enumerated 21 kinds of blend schemes in the table 1.
LLDPE is the linear low density polyethylene abbreviation in the table, and LDPE is the new LDPE (film grade) abbreviation.Contain oxidation inhibitor such as antioxidant 1010 in the aid master batches in the table, consumption be the main water barrier prescription total 0.2～0.5%, auxiliary antioxidant such as anti-oxidant DLTP consumption are 0.1～0.2% of main water barrier prescription total amount, with photostabilizer such as carbon black, white carbon black, consumption be 1.0% of main water barrier prescription total amount, and dispersion agent colorant etc.Above-mentioned material becomes aid master batches with the vector resin mixing post-treatment that accounts for masterbatch total amount 60～80%.
Table 1
Claims (4)
1, a kind of multi-layer water-proof coiled composite material of polyethylene blend; its structure is to do the enhancing non-skid finish in the compound nonwoven polypropylene fabric in main water barrier bottom surface, top; perhaps do not have anti-cloth and do surface enhancing heat-barrier coating at the compound terylene in bottom surface, top; the perhaps compound nonwoven polypropylene fabric that goes up in bottom surface; the compound terylene non-woven fabric of going up of end face; its feature also is; main water barrier is the water-proof film of making behind the polymer blending modification; mainly contain linear low density polyethylene and new LDPE (film grade) in the blend, the deal ratio is 100/10～30.
2, multi-layer water-proof coiled composite material as claimed in claim 1 is characterized in that the new LDPE (film grade) in the blend can substitute with copolymer-modified dose of 5～20 deals.
3, multi-layer water-proof coiled composite material as claimed in claim 1, the deal that it is characterized in that the new LDPE (film grade) in the blend is 10～20, also contains copolymer-modified dose of 15～5 deals.
4, it is characterized in that as claim 2 or 3 described multi-layer water-proof coiled composite materials described copolymer-modified dose comprises: ethene one acetate ethylene copolymer (EVA), styrene-butadiene one styrol copolymer (SBS), vinylbenzene one isoprene copolymer thermoplastic elastomers such as (SIS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001112279A CN1157458C (en) | 2000-07-19 | 2000-07-19 | Multi-layer water-proof coiled composite material of polyethylene blend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001112279A CN1157458C (en) | 2000-07-19 | 2000-07-19 | Multi-layer water-proof coiled composite material of polyethylene blend |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410029989 Division CN1572969A (en) | 2000-07-19 | 2000-07-19 | Low molecular polymer modification polythene composite water-proof coiled material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1334306A true CN1334306A (en) | 2002-02-06 |
| CN1157458C CN1157458C (en) | 2004-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001112279A Expired - Fee Related CN1157458C (en) | 2000-07-19 | 2000-07-19 | Multi-layer water-proof coiled composite material of polyethylene blend |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449088C (en) * | 2006-10-24 | 2009-01-07 | 甘国工 | Leak-proof slide-resisting tarpaulin on building top layer |
| CN101871248A (en) * | 2010-05-31 | 2010-10-27 | 广东科顺化工实业有限公司 | Reactive polymer waterproofing coiled material |
| CN103770418A (en) * | 2013-12-30 | 2014-05-07 | 佛山佛塑科技集团股份有限公司 | Composite material for building and preparation method thereof |
| CN104441859A (en) * | 2014-12-15 | 2015-03-25 | 宜宾市旺明广告有限责任公司 | Waterproof coiled material |
| CN104910478A (en) * | 2014-03-11 | 2015-09-16 | 淄博金豪塑料新材料有限公司 | Anti-aging waterproof mask for waterproof roll materials |
| CN104908394A (en) * | 2014-03-11 | 2015-09-16 | 淄博金豪塑料新材料有限公司 | High-strength anti-aging waterproof mask |
-
2000
- 2000-07-19 CN CNB001112279A patent/CN1157458C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449088C (en) * | 2006-10-24 | 2009-01-07 | 甘国工 | Leak-proof slide-resisting tarpaulin on building top layer |
| CN101871248A (en) * | 2010-05-31 | 2010-10-27 | 广东科顺化工实业有限公司 | Reactive polymer waterproofing coiled material |
| CN103770418A (en) * | 2013-12-30 | 2014-05-07 | 佛山佛塑科技集团股份有限公司 | Composite material for building and preparation method thereof |
| CN104910478A (en) * | 2014-03-11 | 2015-09-16 | 淄博金豪塑料新材料有限公司 | Anti-aging waterproof mask for waterproof roll materials |
| CN104908394A (en) * | 2014-03-11 | 2015-09-16 | 淄博金豪塑料新材料有限公司 | High-strength anti-aging waterproof mask |
| CN104441859A (en) * | 2014-12-15 | 2015-03-25 | 宜宾市旺明广告有限责任公司 | Waterproof coiled material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1157458C (en) | 2004-07-14 |
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