CN103709922A

CN103709922A - Preparation method of polyurethane waterproof coating

Info

Publication number: CN103709922A
Application number: CN201310669503.3A
Authority: CN
Inventors: 朱卫国
Original assignee: ZHANGJIAGANG MINYANG PLASTIC CEMENT CO Ltd
Current assignee: ZHANGJIAGANG MINYANG PLASTIC CEMENT CO Ltd
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-04-09

Abstract

The invention discloses a preparation method of an environmental-protection polyurethane waterproof coating. The preparation method comprises the following steps: 1) preparing a component A, namely a polyurethane prepolymer; 2) preparing a component B, namely a pigment filler; and 3) adding the pigment filler into 20-30 parts of the polyurethane prepolymer, adding a thickening agent, stirring for 1-2 h, and discharging to obtain the environmental-protection polyurethane waterproof coating. The new-generation double-component environmental-protection color polyurethane waterproof coating which contains no any solvent, has high solid content, has no pollution during a construction process, and has stable film coating performance, adjustable colors and excellent cost performance is prepared with a chlorinated paraffin liquid and industrial waste slag fly as a mixed filler.

Description

A kind of preparation method of polyurethane water-proof paint

Technical field

The preparation method who the present invention relates to a kind of polyurethane water-proof paint, belongs to technical field of coatings.

Background technology

Polyurethane water-proof paint is the leading product in domestic and international architectural waterproof material, tar polyurethane waterproofing paint is one of maximum, the most general polyurethane water-proof paint kind of current China various places usage quantity, but because of its contaminate environment, be detrimental to health, be limited to use.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of environment-friendly type, film performance to stablize, the preparation method of the polyurethane water-proof paint that color is adjustable.

For addressing the above problem, the technical solution used in the present invention is: a kind of preparation method of environment-friendly type polyurethane waterproofing paint, the steps include:

1) A component: the preparation of base polyurethane prepolymer for use as

According to the mass fraction, by 20～30 parts of polyether glycol N330(Nanjing Hong Xiang Chemical Co., Ltd.s), 8～12 parts of gloomy combination works in polyether glycol DL2000(Zibo are sold company limited), 3～6 parts of gloomy combination works in polyether glycol DLl000(Zibo are sold company limited) mix, and drop in vacuum distillation apparatus, under ℃ condition of 94kPa120～130, dehydration operation 2～3h then, close vacuum pump, under normal temperature, make material be cooled to 40 ℃, now start slowly to add 5～7 parts of tolylene diisocyanate TDI, after adding, under agitation react 1～2h, again material is slowly heated to 70～90 ℃, and hold temperature 2.0～4.0h, discharging,

2) B component: the preparation of color stuffing

According to the mass fraction, get 30～40 parts of water and add successively 2～3 parts of sterilant (Guangzhou Tuo Lite Chemical Co., Ltd.), 4～6 parts of frostproofers (Wuxi De Sheng energy-saving building materials company limited), 8～10 parts of wetting agents (Shanghai Tag Polymer Sciences Ltd.), 10～12 parts of dispersion agents (Shanghai Mo Tian Chemical Co., Ltd.) and 8～12 parts of defoamers (Shanghai Mo Tian Chemical Co., Ltd.), stir, add gradually again 14～20 parts of pigment, 40～50 component fluid chlorinated paraffins, 10～15 parts of antiagers (Shanghai Fei Tuo pigment company limited), 20～30 parts of superfined flyashs, 16～22 parts of barium sulfate, till colloidal mill is fully ground to without obvious particulate material,

The grain diameter of described superfined flyash is at 0.3～0.4 μ m;

Described pigment is single iron oxide yellow, red iron oxide, iron oxide black, iron oxide blue or two or more mixtures;

3) according to the mass fraction, 15～20 parts of color stuffings that prepare are joined in 20～30 parts of base polyurethane prepolymer for use as, add 4～6 parts of thickening materials (Tianjin timely snow auxiliary chemicals company limited), stir 1～2h, discharging.

The invention has the beneficial effects as follows: with liquid chlorinated paraffin and industrial residue flyash be mixed fillers prepare not containing any solvent, high solids content, construction process is pollution-free, and film performance is stable, color is adjustable, the bi-component environmental-protecting color waterproof polyurethane paint of new generation of cost performance excellence.

Embodiment

Embodiment 1

1) by 20Kg polyether glycol N330,9Kg polyether glycol DL2000,3Kg polyether glycol DLl000 mixes, and drops in vacuum distillation apparatus, and under ℃ condition of 94kPa120～130, dehydration operation 2h then, close vacuum pump, under normal temperature, make material be cooled to 40 ℃, now start slowly to add 6Kg tolylene diisocyanate TDI, after adding, under agitation react 1h, again material is slowly heated to 70～90 ℃, and hold warm 2.5h, discharging, makes base polyurethane prepolymer for use as.

2) get 30Kg water and add successively 2Kg sterilant, 4.5Kg frostproofer, 8Kg wetting agent, 10Kg dispersion agent and 8Kg defoamer, stir, add gradually again 15Kg iron oxide yellow, 42Kg fluid chlorinated paraffin, 12Kg antiager, 20Kg superfined flyash, 16Kg barium sulfate, till colloidal mill is fully ground to without obvious particulate material.

3) by the 16Kg2 preparing) join 25Kg1) in, add 4Kg thickening material, stir 1h, discharging.

Embodiment 2

1) by 25Kg polyether glycol N330,10Kg polyether glycol DL2000,5Kg polyether glycol DLl000 mixes, and drop in vacuum distillation apparatus, dehydration operation 2.5h under ℃ condition of 94kPa120～130, closes vacuum pump, under normal temperature, make material be cooled to 40 ℃, now start slowly to add 6Kg tolylene diisocyanate TDI, after adding, under agitation react 2h, then material is slowly heated to 70～90 ℃, and hold warm 4.0h, discharging.

2) get 40Kg water and add successively 3Kg sterilant, 5Kg frostproofer, 10Kg wetting agent, 11Kg dispersion agent and 10Kg defoamer, stir, add gradually again 18Kg iron oxide blue, 45Kg fluid chlorinated paraffin, 14Kg antiager, 30Kg superfined flyash, 20Kg barium sulfate, till colloidal mill is fully ground to without obvious particulate material.

3) by the 18Kg2 preparing) join 30Kg1) in, add 6Kg thickening material, stir 2h, discharging.

Claims

1. a preparation method for environment-friendly type polyurethane waterproofing paint, material according to the mass fraction, the steps include:

1) by 20～30 parts of polyether glycol N330,8～12 parts of polyether glycol DL2000,3～6 parts of polyether glycol DLl000 mix, drop in vacuum distillation apparatus, at 94kPa, 120～130 ℃ of dehydration operation 2～3h, close vacuum pump, under normal temperature, make material be cooled to 40 ℃, add again 5～7 parts of tolylene diisocyanate TDI, add rear stirring reaction 1～2h, then by heating material to 70～90 ℃, hold temperature 2.0～4.0h, discharging obtains A component;

2) get 30～40 parts of water and add successively 2～3 parts of sterilant, 4～6 parts of frostproofers, 8～10 parts of wetting agents, 10～12 parts of dispersion agents and 8～12 parts of defoamers, stir, add again 14～20 parts of pigment, 40～50 component fluid chlorinated paraffins, 10～15 parts of antiagers, 20～30 parts of superfined flyashs, 16～22 parts of barium sulfate, through being ground to without obvious particulate material, obtain B component;

3) 15～20 parts of B components are joined in 20～30 parts of A components, then add 4～6 parts of thickening materials, stir 1～2h, discharging obtains environment-friendly type polyurethane waterproofing paint.

2. a kind of environment-friendly type polyurethane waterproofing paint according to claim 1, it rises and is characterised in that: the grain diameter of described superfined flyash is at 0.3～0.4 μ m.

3. a kind of environment-friendly type polyurethane waterproofing paint according to claim 1, it rises and is characterised in that: described pigment is single iron oxide yellow, red iron oxide, iron oxide black, iron oxide blue or two or more mixtures.