CN102585685A

CN102585685A - Single-component polyurethane waterproof paint and preparation process thereof

Info

Publication number: CN102585685A
Application number: CN2011100075269A
Authority: CN
Inventors: 李爱兰; 周太峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-14
Filing date: 2011-01-14
Publication date: 2012-07-18

Abstract

The invention discloses a single-component polyurethane waterproof paint and a preparation process thereof. The paint is made from polyether polyol, isocyanate, a chain extender, a catalyst, a packing, a diluent, a storage stabilizer, a plasticizing agent, an antioxidant, an ultraviolet absorber, an antifoaming agent, a fire retardant, a coloring agent, a thickening agent, a flatting agent, a polymerization inhibitor and a waterproofing agent.

Description

A kind of mono-composition poyurethane water-proof paint and preparation technology

Technical field

The invention belongs to construction industry waterproof paint technical field, particularly a kind of mono-composition poyurethane water-proof paint and preparation technology thereof who does not contain materials such as tar, benzene, halohydrocarbon, HDI, MOCA, DBTDL, glycol ether and ester class thereof.

Background technology

Between waterproof paint mainly is used for roofing, underground contruction, surface structures, lavatory bathed, the waterproof at engineering position such as undrinkable water pond.One-pack type polyurethane water-proof paint construction is comparatively easy, need not mix stirring, tackify not before the brushing, and the moisture content in the ingress of air of brushing back solidify to form the integral seamless waterproof layer, has certain advantage.The monocomponent polyurethane waterproof paint is to be main raw material with isocyanic ester, polyethers, is equipped with the response type flexible waterproof coating that various auxiliary agents are processed.This product has good physicals, and cohesive force is strong, the normal temperature moisture curing.Have following characteristics: it is strong that product has HS, high-elongation, high solids content, cohesive force; The nature levelling, good-extensibility can overcome the seepage that base course crack brings; The normal temperature construction, easy and simple to handle, nontoxic, weather resisteant, ageing-resistant performance excellence; Easy construction has overcome the shortcoming that double-composition polyurethane waterproof paint need measure stirring, has guaranteed the waterproof effect of constant product quality and engineering.

With two component polyurethane waterproof paint mono-composition poyurethane water-proof paint following advantage is arranged: single-component waterproof coating material has saved the burden process before the construction, can not measure mistake, uses easy to operate; During use, (NCO) prepolymer of end group is through reacting further polymerization and film-forming with airborne moisture for the isocyano that contains in the coating.In addition, because the prepolymer modest viscosity, thereby need not organic solvent diluting; It can also be constructed under the condition of relative humidity 90%; Therefore the single-component moisture curing polyurethane waterproof paint is a kind of medium-to-high grade water-proof material of excellent property; Its easy construction, content of volatile organic compound is low, error in dipping is little; Existing excellent waterproof and mechanical property have good environmental-protecting performance again.

Summary of the invention

The prescription of the open mono-composition poyurethane water-proof paint of the present invention, the present invention discloses the preparation method of this mono-composition poyurethane water-proof paint on the other hand.

The prescription of the open mono-composition poyurethane water-proof paint of the present invention is specific as follows: polyether glycol, isocyanic ester, chainextender, catalyzer; Filler, thinner, shelf-stable agent, softening agent, inhibitor; UV light absorber, skimmer, fire retardant, tinting material; Thickening material, flow agent, stopper, and water-resisting agent.

Wherein the content of polyether glycol is 35%～55%; The content of isocyanic ester is 8%～15%; The content of chainextender is 5%～10%; The content of catalyzer is 0.1%～1.0%; The content of filler is 10.0%～20.0%; The content of thinner is 8.0%～15.0%; The content of shelf-stable agent is 1.0%～3.0%; The content of softening agent is 2%～5%; The content of inhibitor is 0.1%～1.0%; The content of UV light absorber is 0.1%～1.0%; The content of skimmer is 0.1%～1.0%; The content of fire retardant is 0%～1.0%; The content of tinting material is 0%～1.0%; The content of thickening material is 0%～1.0%; The content of flow agent is 0%～1.0%; The content of stopper is 0%～1.0%; The content of water-resisting agent is 0%～1.0%;

Wherein polyether glycol is meant a kind of or mixture among JH-2020, N-303, the Ng-220; Isocyanic ester is meant a kind of or mixture in HTDI, HMDI, the liquefied mdi (urethane-modified liquefied mdi, carbodiimide and uretonimine type modification liquefied mdi); Chainextender is meant 1, a kind of or mixture in 4-butyleneglycol, trolamine, the tri-isopropanolamine; Catalyzer is meant a kind of or mixture in stannous octoate, triethylamine, the triethylenediamine; Filler is meant a kind of or mixture in light calcium carbonate, wilkinite, talcum powder, baihuixiong, the kaolin; Thinner is meant a kind of or mixture in toluene, YLENE, vinyl acetic monomer, N, the acetone; The shelf-stable agent is meant a kind of or mixture in triphenylphosphate, phosphinylidyne isocyanic ester, the positive carbonic acid tetra-ethyl ester; Softening agent is meant DOP, Witcizer 300,2,2,4-trimethylammonium-1, a kind of or mixture in the 3-pentanediol diisobutyrate; Inhibitor is meant a kind of or mixture in four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) tetramethylolmethane (1010), three (3, the 5-di-tert-butyl-hydroxy phenyl) chlorinated isocyanurates (3114), the 2,6 di tert butyl 4 methyl phenol (264); UV light absorber is meant a kind of or mixture among 2-hydroxyl-4-methoxy benzophenone (UV-9), 2-(2-hydroxy-5-methyl base phenyl) benzotriazole (UV-P), the Tinuvin IIIFB B900; Skimmer is meant a kind of or mixture among quicklime, BYK-141, the Pernol E1; Fire retardant is meant a kind of or mixture in Antimony Trioxide: 99.5Min, white lake, the weisspiessglanz-silicon oxide mixture; Tinting material is meant a kind of or mixture in red iron oxide, yellow oxide of iron, the WHITE CARBON BLACK; Flow agent is meant a kind of or mixture among Triton B-1956, Bntvar B-761, the BYK-VP320; Stopper is meant a kind of or mixture in tartrate, Hydrocerol A, phosphoric acid, the hydrochloric acid; Thickening material is meant a kind of or mixture among Claytonc HT, BYK-P104, the Anti-Terra-204; Water-resisting agent is meant a kind of or mixture among AW-1, the AW-2.

On the other hand, the preparation technology of the open waterproof paint of the present invention, this technology are 105 ℃ of decompression dehydrations 1～3 hour with polyether glycol, thinner, catalyzer, softening agent; Be cooled to 40～50 ℃, drip isocyanic ester, stir; Be warming up to 70～85 ℃, insulation reaction 1.5～4 hours is cooled to 45～55 ℃; Add filler, chainextender, insulation reaction 30～60 minutes gets feed liquid A; Other subsidiary material 105 ℃ of decompression dehydrations 1～3 hour, are cooled to 45～55 ℃, feed liquid B; Feed liquid A and feed liquid B are mixed, stirred 20～40 minutes, packing.

Waterproof paint through concrete prescription of the present invention and prepared can be through following Quality Control: tensile strength>=3.5Mpa; Unit elongation>=650%; Low temperature flexibility≤-45 ℃, flawless; Watertightness 0.3MPa 30min is waterproof; Solids content>=85%; Surface drying time≤9h.

The waterproof paint of the present invention's preparation, on-the-spot plug and play, easy construction.Not harsh to the basal plane water content requirement, can on moist basal plane, construct, also can under the bigger condition of relative humidity, construct.The tensile strength of filming height, unit elongation is high, and good springiness, high-and low-temperature resistance performance are good, and be strong to the flexibility of base-layer contraction and craze and transfiguration.Once the brushing can reach 1-3mm thick, film closely knit, free of pinholes, no bubble.Cohesive force is strong, in satisfactory various basic units, does not need the brushing base treatment agent.Waterproof paint color tunable of the present invention can satisfy the hommization requirement of different clients to surface color and polish simultaneously.

The specific embodiment of the invention is following:

Embodiment 1:

Embodiment 2

Embodiment 3

Claims

1. a mono-composition poyurethane water-proof paint is characterized in that this coating by polyether glycol, isocyanic ester, chainextender, catalyzer;, filler, thinner, shelf-stable agent, softening agent; Inhibitor, UV light absorber, skimmer, fire retardant, tinting material; Thickening material, flow agent, stopper and water-resisting agent are processed according to following ratio:

The content of polyether glycol is 35%～55%; The content of isocyanic ester is 8%～15%; The content of chainextender is 5%～10%; The content of catalyzer is 0.1%～1.0%; The content of filler is 10.0%～20.0%; The content of thinner is 8.0%～15.0%; The content of shelf-stable agent is 1.0%～3.0%; The content of softening agent is 2%～5%; The content of inhibitor is 0.1%～1.0%; The content of UV light absorber is 0.1%～1.0%; The content of skimmer is 0.1%～1.0%; The content of fire retardant is 0%～1.0%; The content of tinting material is 0%～1.0%; The content of thickening material is 0%～1.0%; The content of flow agent is 0%～1.0%; The content of stopper is 0%～1.0%; The content of water-resisting agent is 0%～1.0%.

2. waterproof paint as claimed in claim 1, wherein polyether glycol is meant a kind of or mixture among JH-2020, N-303, the Ng-220; Isocyanic ester is meant a kind of or mixture in HTDI, HMDI, the liquefied mdi; Chainextender is meant 1, a kind of or mixture in 4-butyleneglycol, trolamine, the tri-isopropanolamine; Catalyzer is meant a kind of or mixture in stannous octoate, triethylamine, the triethylenediamine; Filler is meant a kind of or mixture in light calcium carbonate, wilkinite, talcum powder, baihuixiong, the kaolin; Thinner is meant a kind of or mixture in toluene, YLENE, vinyl acetic monomer, N, the acetone; The shelf-stable agent is meant a kind of or mixture in triphenylphosphate, phosphinylidyne isocyanic ester, the positive carbonic acid tetra-ethyl ester; Softening agent is meant DOP, Witcizer 300,2,2,4-trimethylammonium-1, a kind of or mixture in the 3-pentanediol diisobutyrate; Inhibitor is meant a kind of or mixture in four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) tetramethylolmethane (1010), three (3, the 5-di-tert-butyl-hydroxy phenyl) chlorinated isocyanurates (3114), the 2,6 di tert butyl 4 methyl phenol (264); UV light absorber is meant a kind of or mixture among 2-hydroxyl-4-methoxy benzophenone (UV-9), 2-(2-hydroxy-5-methyl base phenyl) benzotriazole (UV-P), the Tinuvin IIIFB B900; Skimmer is meant a kind of or mixture among quicklime, BYK-141, the Pernol E1; Fire retardant is meant a kind of or mixture in Antimony Trioxide: 99.5Min, white lake, the weisspiessglanz-silicon oxide mixture; Tinting material is meant a kind of or mixture in red iron oxide, yellow oxide of iron, the WHITE CARBON BLACK; Flow agent is meant a kind of or mixture among Triton B-1956, Bntvar B-761, the BYK-VP320; Stopper is meant a kind of or mixture in tartrate, Hydrocerol A, phosphoric acid, the hydrochloric acid; Thickening material is meant a kind of or mixture among Claytonc HT, BYK-P104, the Anti-Terra-204; Water-resisting agent is meant a kind of or mixture among AW-1, the AW-2.

3. according to claim 1 or claim 2 the preparation method of waterproof paint is characterized in that this method is:

Polyether glycol, thinner, catalyzer, softening agent 105 ℃ of decompression dehydrations 1～3 hour, are cooled to 40～50 ℃, drip isocyanic ester; Stir, be warming up to 70～85 ℃, insulation reaction 1.5～4 hours; Be cooled to 45～55 ℃; Add filler, chainextender, insulation reaction 30～60 minutes gets feed liquid A; Other subsidiary material 105 ℃ of decompression dehydrations 1～3 hour, are cooled to 45～55 ℃, feed liquid B; Feed liquid A and feed liquid B are mixed, stirred 20～40 minutes, packing.