CN1213681A - Regenerated rubber asphalt water-emulsion waterproof paint and its prepn. method - Google Patents

Regenerated rubber asphalt water-emulsion waterproof paint and its prepn. method Download PDF

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Publication number
CN1213681A
CN1213681A CN 98113346 CN98113346A CN1213681A CN 1213681 A CN1213681 A CN 1213681A CN 98113346 CN98113346 CN 98113346 CN 98113346 A CN98113346 A CN 98113346A CN 1213681 A CN1213681 A CN 1213681A
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China
Prior art keywords
emulsion
waterproof paint
rubber asphalt
water
regenerated rubber
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CN 98113346
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CN1110526C (en
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刘伟区
黄月文
罗广建
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Guangzhou Institute of Chemistry of CAS
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Guangzhou Institute of Chemistry of CAS
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Publication of CN1110526C publication Critical patent/CN1110526C/en
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Abstract

A polymer modified aqueous emulsion type of water-proof paint is prepared from styrene-acrylate copolymer emulsion and regenerated rubber-asphalt emulsion through proportional mixing, and features high tensile stretch, adhesion and strength and wide adaptability.

Description

A kind of regenerated rubber asphalt water-emulsion waterproof paint and method for making
The present invention relates to water milk type polymer modified reclaimed rubber pitch waterproof coating and preparation method.Along with the development of construction industry, the development and the application of all kinds of waterproof paints are developed rapidly, and be more and more higher to the specification of quality of building water-proof paint.In the waterproof paint that has practical value both at home and abroad at present, be to occupy bigger ratio in the prepared waterproof paint of raw material with the regenerated rubber asphalt, reclaimed rubber asphalt waterproofing paint is divided into solvent-borne type and water-latex type two classes in actual applications.The water-latex type reclaimed rubber asphalt waterproofing paint is to be mixed by anionic regeneration latex and bitumen emulsion to constitute, and is the effect of the particulate of regenerated rubber and petroleum pitch by means of aniorfic surfactant, and stable dispersion is in water and a kind of milk sap that forms.The main film forming substance of this coating is regenerated rubber and petroleum pitch, compare with the solvent-borne type like product, for having replaced organic solvent with water, thereby have nontoxic, tasteless, non-combustible advantage, and safe and reliable, can cold at normal temperatures construction operation, free from environmental pollution, simple to operate, easy to maintenance and can be moist slightly and do not have the advantages such as surface construction of ponding, thereby such waterproof paint obtains to use more widely in China in recent years.Yet there are some technical vulnerabilities in actual applications in such material, as low with the basal plane bonding force, tensile strength is low, tensile yield is not enough etc.
The objective of the invention is to solve the problem in the application of water-latex type reclaimed rubber asphalt waterproofing paint, a kind of polymer modification water-latex type reclaimed rubber waterproofing paint is provided, this coating has higher bonding strength, tensile strength and tensile yield.
The polymer modification water-latex type reclaimed rubber asphalt waterproofing paint of indication of the present invention is to adopt interpolymer latex of polystyrene and acrylic ester (hereinafter to be referred as benzene emulsion) and regenerated rubber asphalt emulsion to be composited according to 1: 1~10 ratio.Reclaimed rubber is the synthetic rubber of natural rubber or counter structure, and reclaimed rubber mixes by arbitrary proportion with pitch.Regenerated rubber asphalt emulsion, solids content are 47%.Latex of copolymer in cinnamic acrylic ester is added and is contained in the deionized water solution of ammonium persulphate, anionic emulsifier, nonionogenic tenside by vinylbenzene, butyl acrylate, vinylformic acid, makes the emulsion of solid content 48% in 2 hours 80~90 ℃ of polymerizations.Wherein styrene content is no more than 50%, can mix by arbitrary proportion between butyl acrylate, the vinylformic acid.
The method for making of the polymer modified reclaimed rubber asphalt water-emulsion waterproof paint of indication of the present invention comprises following step:
One. the preparation of regenerated rubber asphalt emulsion:
1. shoddy is plasticated on rubber mixing machine to higher plasticity number behind desulphurization reaction, mixes a certain amount of oleic acid, potassium hydroxide, ammoniacal liquor and polyvinyl alcohol, makes regeneration latex.
2. petroleum pitch and OP emulsifying agent, water, sodium hydroxide, water glass and polyvinyl alcohol are mixed and made into bitumen emulsion by a certain percentage.
Above-mentioned 1) and 2) stir, become the regenerated rubber asphalt emulsion.
Two. the preparation of vinylbenzene-acrylate copolymer emulsion:
Vinylbenzene, acrylate, vinylformic acid are added in the deionized water solution that contains ammonium persulphate, anionic emulsifier, nonionogenic tenside, are to carry out polyreaction under 80~90 ℃ 2 hours in temperature, add the ammoniacal liquor neutralization at last and make stable emulsion.Above-mentioned petroleum pitch can be No. 10 pitches and No. 60 asphalt mixtures, and acrylate can be butyl acrylate.
Three. the preparation of the polymer modified reclaimed rubber asphalt water-emulsion waterproof paint of indication of the present invention:
Above-mentioned (one) and (two) is mixed, and mixed as requested can obtain the polymer modified reclaimed rubber asphalt water-emulsion waterproof paint of indication of the present invention.
The waterproof paint result of use of indication of the present invention sees Table 1.
Table 1: polymer modified reclaimed rubber asphalt water-emulsion waterproof paint technical feature
Regenerated rubber asphalt water-emulsion liquid (parts by weight) Benzene emulsion (parts by weight) Performance project
Solid content (%) Bonding strength MPa Tensile strength MPa Tensile yield (%) Watertightness Acid resistance Alkali resistance
100 ??0 ????47 <0.2 <0.1 ?220 Waterproof The surface no change The surface no change
500 ?100 ????47 ?0.71 ?0.14 ?650 Waterproof The surface no change The surface no change
300 ?100 ????47 ?0.98 ?0.29 ?995 Waterproof The surface no change The surface no change
100 ?100 ????47 ?1.47 ?0.71 ?1191 Waterproof The surface no change The surface no change
Tensile strength, elongation at break are pressed the standard method test shown in the JC500-92 in the table 1.Bonding strength: 8 type matrix methods test.Watertightness: moving hydraulic pressure, 0.1MPa, 0.5h.Alkali resistance: 20 ℃ at saturated Ca (OH) 2Soak 20d in the solution.Acid resistance: 1%H 2SO 4Soak 15d in the solution.
We can see from table 1, and polymer modified reclaimed rubber pitch water emulsion waterproof paint provided by the invention is compared with unmodified regenerated rubber asphalt water-emulsion liquid waterproof paint, and bonding strength, tensile yield etc. all is significantly improved.Obviously, polymer modified reclaimed rubber asphalt water-emulsion waterproof paint provided by the present invention is compared with existing waterproof paint and is had suitable obvious effects.
Embodiment 1: with 200 parts of regenerated rubber asphalt water-emulsion liquid and 100 parts of benzene emulsion mixing and stirring, each basic mechanical design feature index of this composite water-proof coating is: solid content 47%, tensile strength 0.39MPa, bonding strength 1.14MPa, tensile yield 1100%, moving hydraulic pressure 0.1MPa, 0.5 hour are waterproof, and acid-proof alkaline is good.
Embodiment 2: with 400 parts of regenerated rubber asphalt water-emulsion liquid and 100 parts of benzene emulsion mixing and stirring, each basic mechanical design feature index of this composite water-proof coating is: solid content 47%, bonding strength 0.90MPa, tensile strength 0.22MPa, tensile yield 673%, moving hydraulic pressure 0.1MPa, 0.5 hour are waterproof, and acid-proof alkaline is good.
Wherein regenerated rubber asphalt emulsion and cinnamic acrylic ester preparation as follows respectively:
1) preparation of regenerated rubber asphalt emulsion
100 parts of 40 order desulfurization shoddies, 20 parts in No. 60 petroleum pitch, 2 parts in 420 activators, 2 parts of rosin are thrown to the reactor that whipping appts is housed, and are to carry out desulphurization reaction 2 hours under about 220 ℃ in temperature.Above-mentioned 100 parts of desulfurization material mixtures are being plasticated on the rubber mixing machine to higher plasticity number, and 6 parts of oleic acid of admixture and 1.7 parts of potassium hydroxide add 1% polyvinyl alcohol in case of necessity again, admixture distilled water, the control solid content is about 47%, and high speed dispersor emulsification disperses, and prepares stable regeneration latex.
30 parts of No. 10 petroleum pitch, 70 parts of No. 60 petroleum pitch, 2 parts of OP emulsifying agents, 100 parts of water, 0.9 part of sodium hydroxide, 1.6 parts of water glass, the mixture of 4 parts of polyvinyl alcohol is emulsification in the homogenize machine, makes the bitumen emulsion of stable solid content about 47%.
To regenerate latex and emulsified bitumen is 1: 1 mixed by weight and stirs, and promptly is prepared into regenerated rubber asphalt water-emulsion liquid, solid content about 47%.
2) preparation of interpolymer latex of polystyrene and acrylic ester
44 parts of vinylbenzene, 53 parts of butyl acrylates, 3 parts of acrylic acid mixtures are dropped in the solution reaction system that contains 0.4 part of ammonium persulphate, 0.5 part of anionic emulsifier, 2.0 portions of nonionogenic tensides and 100 parts of deionized waters, in temperature is to carry out polyreaction under 80~90 ℃ 2 hours, reaction is neutralized to PH=7~9 with ammoniacal liquor before finishing, and is prepared into solid content and is about 48% stable emulsion.

Claims (7)

1. regenerated rubber asphalt water-emulsion waterproof paint, regenerated rubber asphalt water-emulsion liquid is mixed by reclaimed rubber emulsion and bitumen emulsion, it is characterized in that adopting interpolymer latex of polystyrene and acrylic ester and regenerated rubber asphalt emulsion to be composited with the ratio of weight ratio 1: 1~10.
2. according to the waterproof paint described in the claim 1, it is characterized in that the regenerated rubber asphalt emulsion in described, its reclaimed rubber is natural rubber or synthetic rubber, and reclaimed rubber mixes by arbitrary proportion with pitch, and emulsion solids content is 47%.
3. according to the waterproof paint described in the claim 1, it is characterized in that described cinnamic acrylic ester emulsion is made up of vinylbenzene, acrylate, vinylformic acid three, wherein styrene content is no more than 50%, and emulsion solids content is 48%.
4. method of making the waterproof paint described in the claim 1 is characterized in that comprising following process for preparation:
(1) preparation of regenerated rubber asphalt emulsion:
1). after the shoddy desulfurization, on rubber mixing machine, plasticate, mix oleic acid, potassium hydroxide, ammoniacal liquor and polyvinyl alcohol and make regeneration latex;
2). petroleum pitch and OP emulsifying agent, sodium hydroxide, water glass and polyvinyl alcohol are made bitumen emulsion; Above-mentioned 1) and 2) be mixed into the regenerated rubber asphalt emulsion;
(2) preparation of vinylbenzene-acrylate copolymer emulsion: vinylbenzene, acrylate, vinylformic acid are added in the deionized water solution that contains ammonium persulphate, anionic emulsifier, nonionogenic tenside, in temperature is to carry out polyreaction under 80~90 ℃ 2 hours, add the ammoniacal liquor neutralization, make vinylbenzene-acrylate copolymer emulsion;
Above-mentioned (one) and (two) component are mixed, make waterproof paint.
5. according to the waterproof paint method for making described in the claim 4, it is characterized in that described petroleum pitch can be No. 10 and No. 60 and mixes use.
6. according to the waterproof paint method for making described in the claim 4, it is characterized in that described acrylate is a butyl acrylate.
7. according to the waterproof paint method for making described in the claim 4, it is characterized in that to contain 1% polyvinyl alcohol in the latex in the described regeneration latex method for making.
CN98113346A 1998-09-14 1998-09-14 Regenerated rubber asphalt water-emulsion waterproof paint and its prepn. method Expired - Fee Related CN1110526C (en)

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Application Number Priority Date Filing Date Title
CN98113346A CN1110526C (en) 1998-09-14 1998-09-14 Regenerated rubber asphalt water-emulsion waterproof paint and its prepn. method

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Application Number Priority Date Filing Date Title
CN98113346A CN1110526C (en) 1998-09-14 1998-09-14 Regenerated rubber asphalt water-emulsion waterproof paint and its prepn. method

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CN1110526C CN1110526C (en) 2003-06-04

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104776B (en) * 2007-08-23 2010-05-26 李国树 Macromolecule emulsion waterproofing paint
CN102010603A (en) * 2010-10-27 2011-04-13 周乃承 Rubber powder modified emulsified asphalt and preparation method thereof
CN101619149B (en) * 2008-07-04 2011-08-17 天津市橡胶工业研究所 Method for preparing cation emulsified rubber asphalt
CN104087168A (en) * 2014-06-18 2014-10-08 蚌埠市光华金属制品有限公司 Preparation method for water-emulsion-type reclaimed-rubber-modified asphalt waterproof coating
CN104087171A (en) * 2014-06-18 2014-10-08 安徽先锋门业科技有限公司 Preparation method for water-emulsion-type acrylic-acid-modified asphalt waterproof coating
CN106398420A (en) * 2016-07-26 2017-02-15 苏州明轩地坪涂料有限公司 Waterproof paint
CN107459934A (en) * 2017-08-31 2017-12-12 苏州仲勉装饰有限公司 One kind improvement quick-drying waterproof architectural coating and preparation method thereof
CN109233379A (en) * 2018-10-12 2019-01-18 扬州中涂科技集团有限公司 A kind of high-elastic waterproof asphalt emulsion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035623C (en) * 1992-10-16 1997-08-13 重庆建筑工程学院昆明分院 Modified natural rubber and bitumen waterproof paint
CN1112591A (en) * 1994-03-24 1995-11-29 丁铁龙 Acrylic emulsified asphalt water-proof paint
CN1134445A (en) * 1995-11-28 1996-10-30 李光祖 Hot-molten liquid regenerated-rubber water-proofing material and its preparation method
CN1053687C (en) * 1996-02-12 2000-06-21 山东省胶州市第二化工厂 Styrene butadiene rubber bentone thick emulsified asphalt water-proof paint

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104776B (en) * 2007-08-23 2010-05-26 李国树 Macromolecule emulsion waterproofing paint
CN101619149B (en) * 2008-07-04 2011-08-17 天津市橡胶工业研究所 Method for preparing cation emulsified rubber asphalt
CN102010603A (en) * 2010-10-27 2011-04-13 周乃承 Rubber powder modified emulsified asphalt and preparation method thereof
CN102010603B (en) * 2010-10-27 2012-07-04 周乃承 Rubber powder modified emulsified asphalt and preparation method thereof
CN104087168A (en) * 2014-06-18 2014-10-08 蚌埠市光华金属制品有限公司 Preparation method for water-emulsion-type reclaimed-rubber-modified asphalt waterproof coating
CN104087171A (en) * 2014-06-18 2014-10-08 安徽先锋门业科技有限公司 Preparation method for water-emulsion-type acrylic-acid-modified asphalt waterproof coating
CN106398420A (en) * 2016-07-26 2017-02-15 苏州明轩地坪涂料有限公司 Waterproof paint
CN107459934A (en) * 2017-08-31 2017-12-12 苏州仲勉装饰有限公司 One kind improvement quick-drying waterproof architectural coating and preparation method thereof
CN109233379A (en) * 2018-10-12 2019-01-18 扬州中涂科技集团有限公司 A kind of high-elastic waterproof asphalt emulsion

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