CN1089293C - Waterproof polyurethane laminated sheet - Google Patents
Waterproof polyurethane laminated sheet Download PDFInfo
- Publication number
- CN1089293C CN1089293C CN95118773A CN95118773A CN1089293C CN 1089293 C CN1089293 C CN 1089293C CN 95118773 A CN95118773 A CN 95118773A CN 95118773 A CN95118773 A CN 95118773A CN 1089293 C CN1089293 C CN 1089293C
- Authority
- CN
- China
- Prior art keywords
- polyurethane
- sheet
- water
- waterproof
- laminated sheet
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a waterproof polyurethane laminated sheet, wherein water-resistant adhesive phase is coated on the polyurethane laminated sheet secovered from deposed polyurethane foam and a stripping film is overlaid on it. The water-resistant adhesive phase comprises combination of about 60 wt% of blow asphalt, about 15wt% of SBS rubber, about 10wt% of aromatic nondrying oil, about 7.5% of rosin and about 7.5% of filler. In aid of durability of surface polyurethane layer and shock absorption of water-resistant adhesive phase, the waterproof polyurethane laminated sheet can be used as outer layer in bath floor, roof and the like and as buried layer in structure.
Description
The present invention relates to a kind of waterproof polyurethane laminated sheet from waste polyurethane regeneration, it has excellent water proofing property and cohesive.
Present most of waterproof sheet mainly is made up of polyethylene film and bitumen layer.The distinct disadvantage of this class waterproof sheet is that the situation of bitumen layer changes with humidity in time.More detailed speech it, pitch viscosity in time passing and variation, final curing.The bitumen layer of this curing expands repeatedly along with variations in temperature and shrinks, and causes the slit occurring between polyethylene layer and the bitumen layer.In addition, thin polyethylene film is smeared before the operation careless operation because of (for example) easily or is sneaked into sharp stone or foreign matter is damaged its surface when smearing operation, and this obviously can cause water proofing property decline, occurs the slit simultaneously.
After waterproof sheet is fixed, usually protection mortar is applied on the waterproof sheet.When waterproof sheet was positioned on the horizontal plane, when for example went up the bottom, the buttering operation was quite easy.Yet, at vertical plane, as wall on the time, the buttering operation is quite trouble because the smooth surface of polyethylene film becomes, and maybe must build flashing board because must put fragment of brick.
In addition, ECB sheet material, PVC sheet material and EPDM sheet material are also as waterproof sheet.Yet the cohesive of they and base matter is unsatisfactory, thereby does not reach sufficient waterproof effect.In addition, lay before the sheet material, need coat bonding agent on mattess, this can cause cohesive and poor operability.Because waterproof sheet can be not bonding fully with concrete surface.If leak, be difficult to find spots.
The also useful natural or synthetic rubber layer that plays the surfacecti proteon effect and as the coal tar of bonding and waterproof or the lamination waterproof sheet of bitumen layer.Yet rubber layer can not be given full play to the effect of its surfacecti proteon, because it dissolves in adhesive linkage.
Therefore, the objective of the invention is to overcome the problems referred to above that run in the prior art, a kind of waterproof polyurethane laminated sheet with excellent waterproof and adhesive property is provided.
Another object of the present invention provides the waterproof polyurethane laminated sheet of a kind of energy as the sheet material that exposes and cover.
A further object of the present invention is regenerating waste used polyurethane foam.
According to the present invention, top purpose can realize by a kind of waterproof polyurethane laminated sheet is provided, wherein the water-resistant adhesives layer is applied on the polyurethane sheet that reclaims from waste polyurethane foam and and covers it, the composition that described water-resistant adhesives layer is made up of the filler of the rosin of the aromatic series nondrying oil of the SBS rubber of the blown asphalt of about 60wt%, about 15wt%, about 10wt%, about 7.5wt% and about 7.5wt% with peeling paper.
A lot of polyurethane products are arranged, as polyurethane elastomer, polyurethane foam, polyurethane paint, polyurethane binder, artificial leather, polyurethane rubber etc.The different physical properties of polyurethane product is mainly determined by the hydroxy-containing compounds with isocyanate reaction, the derivative of these compounds such as polyester, PPG, the many alcohol of acryloyl group, castor oil etc.
Polyurethane foam is characterised in that the sphere that the gas that produces in dihydroxylic alcohols and the vulcabond polymerization process causes or the space network structure of polygon loose structure and formation.
According to the present invention, polyurethane sheet is made by waste polyurethane foam.For waste polyurethane foam is become polyurethane sheet, need to change the physical property of this material.In more detail, when polyurethane foam melted, its flowability increased sharply, and had limited the temperature range that is suitable for obtaining preparing the required viscosity of sheet material greatly.So it is extremely important to remove the moisture that exists in defoaming, because moisture can cause hydrolysis, the character to the sheet material that makes causes adverse effect like this.
What describe below is the preparation of this polyurethane sheet and the composition of this sheet material.
At first, will give up soft or medium-soft matter polyurethane foam crushing or be cut into about 2-4mm size.Under the about 115-120 of temperature ℃, this polyurethane chip is carried out vacuum drying, up to moisture content reduce to 2% or still less till.Add the additive system that comprises phenolic antioxidant, hydrolysis inhibitor, ultra-violet absorber, pigment and antiseptic then.The mixture that obtains is carried out blend have the extruder barrel that five temperature remain on the continuous section of 175 ℃, 170 ℃, 185 ℃, 176 ℃ and 185 ℃ respectively by one again, by a T die head, obtain polyurethane sheet through a roller at last then.
Because the primary raw material of polyurethane sheet is for to contain the useless soft of a large amount of moistures or medium-soft matter polyurethane foam in its abscess, although carried out drying, moisture still may keep or be absorbed in the waste polyurethane chip, causes hydrolysis.For anti-hydrolysis here, use the hydrolysis inhibitor.As the hydrolysis inhibitor, preferred about 0.5 to the 1.5 part of aromatic polycarbodi-imide that adds by 100 weight portion polyurethane chips.For example, if the aromatic polycarbodi-imide consumption is too little, prevent the DeGrain of hydrolysis.On the other hand, if the amount of polycarbodiimide has surpassed the upper limit, the physical property of sheet material can not further be improved.
Because primary raw material is from discarded object, if do not add antioxidant or ultra-violet absorber, polyurethane sheet in use its physical property will reduce rapidly.According to the present invention, polycarbodiimide can be used as antioxidant, and addition is counted about 0.5-1.5 part by 100 weight portion polyurethane chips.Benzophenone is a kind of good ultraviolet light absorbers, and addition is counted 0.2-0.5 part by 100 parts of polyurethane foam chips.
As everyone knows, the benzimidazolyl methyl carbamate is for preventing that bacterium and mould are effective.According to the present invention, the addition of benzimidazolyl methyl carbamate is counted about 0.1 to 0.3 part by 100 weight portion polyurethane chips.
For making polyurethane sheet painted, add the trace carbon ink, addition is counted about 0.1 to 0.3 part by 100 weight portion polyurethane foam chips.
The composition of polyurethane sheet is listed in the table 1 below.
Table 1
Group component (weight portion)
Polyurethane foam chip 100
Hydrolysis inhibitor 0.5-1.5
(polycarbodiimide)
Phenolic antioxidant 0.2-0.5
UV absorbent (benzophenone) 0.2-0.5
Benzimidazolyl methyl carbamate 0.1-0.3
Carbon ink 0.1-0.3
It is very important to keep each section of machine barrel to be in design temperature.For example, if when the polyurethane crumb mixture is higher than each section of machine barrel of design temperature by relevant temperature, the polyurethane chip is overheated, thereby is difficult to be molded as sheet material.Simultaneously, the aging and thermal decomposition of overheated acceleration molded sheet causes its physical property such as hot strength, tearing strength and percentage elongation significantly to reduce.On the other hand, if the polyurethane chip is lower than each section of machine barrel of design temperature by relevant temperature, unfused chip may be included in the sheet material, thereby causes goods inhomogeneous, and processing characteristics and physical property are poor.
The single shaft that the extruder that uses among the present invention has the SM screw rod shape of the mouth as one speaks extruder of giving vent to anger, wherein kneading portion is arranged on the end of initial compression part, make produce by the friction between cylindrical machine barrel and the material hot.This heat makes the fusing of polyurethane chip, processes so might be lower than under its glass transition point in temperature.If chip is fully not dry, when heating in extruder, remaining moisture can cause hydrolysis and in the foaming of T die head exit place, the physical property of extrudate piece be brought adverse effect.For preventing these problems.Moisture must be removed at the place, gas outlet.
According to the present invention, polyurethane sheet is superimposed on the water-resistant adhesives layer, and adhesive phase is by the bituminous composition preparation of rubber like.Require adhesive phase not dissolve or corrode polyurethane sheet, and keep long-time not temperature variant constant relatively viscosity and cohesive.
Be the preparation water-resistant adhesives, at first, blown asphalt added one jar in and dissolving fully, keeping temperature around here is 100 ℃.In another jar, put into SBS rubber, aromatics nondrying oil, rosin and filler and make it 120 ℃ of fusings.In this jar, the adding molten asphalt also mixed 6-8 hour, obtained viscosity water-resistant adhesives composition.Polyurethane laminated sheet of the present invention is by being applied to viscosity water-resistant adhesives composition on the polyurethane sheet and preparing with the overburden seal coat simultaneously.
According to the present invention, the water-resistant adhesives composition comprises the rosin of the aromatics nondrying oil of the SBS rubber of the blown asphalt of about 60wt%, about 15wt%, about 10wt%, about 7.5wt% and the filler of about 7.5wt%.
Following Table II has provided the component and the consumption thereof of water-resistant adhesives composition.
Table 2
Amounts of components
Weight portion wt%
Blown asphalt 120 60
Synthetic rubber (SBS) 30 15
Aromatics nondrying oil 20 10
Rosin 15 7.5
Filler 15 7.5
Blown asphalt also plays crucial effect for waterproof and bond properties except the effect of playing anticorrosive.Excessive blown asphalt raises because of ambient temperature, and mobile increasing can cause the shear of protection sheet material.In addition, the high fluidity of blown asphalt causes leaking in the coupling part.Like this, water proofing property and good bond variation.
Synthetic rubber provides cohesive and has washed away absorbability.If its consumption is too many, synthetic rubber is difficulties in dispersion in pitch.For avoiding uneven mixture, need high temperature and long incorporation time.
Rosin also helps cohesive.Excessive rosin can make the adhesive phase hardening.
Prevent the nondrying oil that hardens at low temperatures, play the constant effect of viscosity that keeps.
As described previously, be coated in the water-resistant adhesives layer on the polyurethane sheet, have extremely firm bonding force, the water proofing property of excellence and strong cohesive with polyurethane sheet.In addition, it can not corrode or the dissolve polyurethane superficial layer.
By means of the absorbability that washes away of the durability of surperficial layer of polyurethane and water-resistant adhesives layer, waterproof polyurethane laminated sheet of the present invention can be at the bottom of bathing pool or roof etc. locate as outer, and in structure as embedding layer.
For those of ordinary skills, after reading the foregoing disclosure content, other characteristics of the present invention, benefit and embodiment are conspicuous.In view of this consideration, because specific embodiments of the present invention describes in detail, thereby can change and replace and do not leave disclosed by the invention and claimed essence and scope these embodiments.
Claims (1)
1. waterproof polyurethane laminated sheet, wherein the water-resistant adhesives layer is applied on the polyurethane sheet that is reclaimed by waste polyurethane foam and covers a stripping film;
Described water-resistant adhesives layer comprises the composition that contains 60wt% blown asphalt, 15wt%SBS rubber, 10wt% aromatics nondrying oil, 7.5wt% rosin and 7.5wt% filler;
Described urethane film is the sheet material that is prepared by a method comprising the following steps: will give up soft or medium-soft matter polyurethane foam cutting or be crushed to the 2-4mm size; In temperature is the polyurethane chip that 115-120 ℃ of following vacuum drying obtains, until wherein moisture content drop to 2% or still less till; Mixture blend with polyurethane chip and phenol antioxidant, carbodiimides hydrolysis inhibitor, benzophenone, carbon black and the benzimidazole antiseptic of drying; And blend that will obtain is respectively the extruder barrel of five sections of 175 ℃, 170 ℃, 185 ℃, 176 ℃ and 185 ℃ by having temperature, then by a T die head and a roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR25451/95 | 1995-08-18 | ||
| KR1019950025451A KR100251269B1 (en) | 1995-08-18 | 1995-08-18 | Polyurethane sheet for waterproofing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1143570A CN1143570A (en) | 1997-02-26 |
| CN1089293C true CN1089293C (en) | 2002-08-21 |
Family
ID=19423745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95118773A Expired - Fee Related CN1089293C (en) | 1995-08-18 | 1995-11-06 | Waterproof polyurethane laminated sheet |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100251269B1 (en) |
| CN (1) | CN1089293C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100315917B1 (en) * | 1999-12-23 | 2001-12-24 | 차종수 | The method of preparing water-proofing layer sheet using hardning polyurethan resin of two liquid phase |
| KR100685412B1 (en) * | 2004-11-04 | 2007-02-22 | 삼성에스디아이 주식회사 | Printed Circuit Board and Flexible Printed Circuit Board having redundant wire or pad |
| KR100760473B1 (en) | 2006-08-25 | 2007-10-04 | 주식회사 우성에스피 | Polyurethane water proof sheet consist of double layers |
| CN102009510A (en) * | 2009-09-04 | 2011-04-13 | 安徽志诚机电零部件有限公司 | Production process of flexible foam polyurethane composite waterproof membrane |
| KR20200023776A (en) | 2018-08-27 | 2020-03-06 | (주)대한솔루션 | Telephone cord |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1753702A1 (en) * | 1968-01-08 | 1971-07-15 | Elastomer Ag | Process for recycling polyurethane-elastomer waste |
| JPS60161140A (en) * | 1984-02-01 | 1985-08-22 | 三井東圧化学株式会社 | Decorative sheet |
| JP3070785B2 (en) * | 1991-12-10 | 2000-07-31 | 株式会社デンソー | Electromagnetic contactor |
-
1995
- 1995-08-18 KR KR1019950025451A patent/KR100251269B1/en not_active IP Right Cessation
- 1995-11-06 CN CN95118773A patent/CN1089293C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1753702A1 (en) * | 1968-01-08 | 1971-07-15 | Elastomer Ag | Process for recycling polyurethane-elastomer waste |
| JPS60161140A (en) * | 1984-02-01 | 1985-08-22 | 三井東圧化学株式会社 | Decorative sheet |
| JP3070785B2 (en) * | 1991-12-10 | 2000-07-31 | 株式会社デンソー | Electromagnetic contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1143570A (en) | 1997-02-26 |
| KR100251269B1 (en) | 2000-04-15 |
| KR970010108A (en) | 1997-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020821 Termination date: 20121106 |