CN103589340A

CN103589340A - Creep type non-cured rubber asphalt based waterproof coating and preparation method thereof

Info

Publication number: CN103589340A
Application number: CN201310525478.1A
Authority: CN
Inventors: 钱林弟; 李忠人; 李恒; 孙先坤
Original assignee: Jiangsu Canlon Building Materials Co Ltd
Current assignee: Jiangsu Canlon Building Materials Co Ltd
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-02-19

Abstract

The invention relates to a creep type non-cured rubber asphalt based waterproof coating and a preparation method thereof. According to a formula, the waterproof coating comprises, by weight: 10%-50% of asphalt, 20%-55% of solvent oil, 1%-20% of a polymer modifier, 5%-20% of tackifying resin, and 8%-30% of ordinary gelatine powder. The product involved in the invention can be used individually, and also can be used together with other waterproof coiled materials, and especially can effectively solve the water leakage problem caused by waterproof layer cracking resulted from base layer deformation.

Description

Uncured rubber asphalt base waterproof coating of a kind of creepage type and preparation method thereof

Technical field

The present invention relates to uncured rubber asphalt base waterproof coating of a kind of creepage type and preparation method thereof, belong to chemical building material field.

Background technology

At present, domestic construction waterproof field adopts the independent use of waterproof paint, waterproof roll or both jointly to use conventionally.Building water-proof paint is after solvent evaporates or chemically crosslinked, and paint solidification becomes to film and plays waterproof action; Waterproof roll is to be covered in basic unit to play waterproof action.According to investigation, domestic construction waterproof paint is curing substantially, though it has certain water resistance and bonding strength, but its resistance to tearing is poor, when crack appears in coated thing basic unit, films and also destroy thereupon, or only have small extension, and do not possess real anti-base course crack ability.Once coated basic unit's strain cracking, causes film cracking and loses water-proof function; And the construction one of waterproof roll is that seam lap is more, very easily causes rising of seam lap to rouse and cause going here and there water; The 2nd, though waterproof roll has certain extension property, the basic unit being constructed occurs that distortion appears in crack or building structure, and the only small extension of waterproof roll does not possess anti-base course crack ability yet and makes coiled material cracking and lose waterproof action.

And existing domestic modified waterproof asphalt material is mainly solvent-borne type and water-latex type, these waterproof paints are still not very good at aspects such as mechanical property, water resistance and weather resistance, often at high temperature there will be and under creep trickling, low temperature, occur embrittlement delamination, have a strong impact on the water resistance of buildings.Because containing volatile solvent or moisture in this coating, in construction process, particularly in the kitchen and toilet of improper ventilation and buildings, use, the one, extend cycle of construction operation, the 2nd, operating personnel is caused to healthy effect.

In order to change above situation, research and development solid content is high, high thermal resistance good, low temperature flexibility is excellent, and it is imperative to have the uncured rubber asphalt waterproof coating of good creep properties.

Uncured rubber asphalt waterproof coating can be used as film waterproof material separately, also can with superpolymer (SBS or APP) modified asphalt waterproof coiled material compound use, form two road waterproof layers and set up defences, one film layer with together with coiled material layer, at the tackiness agent that this dope layer doubles as coiled material, use simultaneously.

The key distinction of uncured rubber asphalt waterproof coating and general modified waterproof asphalt material is that its good creep properties gives compound system self-healing capability and reply base course crack ability, has greatly reduced engineering maintenance cost.Uncured rubber asphalt waterproof coating both can be used for newly-built waterproof layer, also can be used for repairing impaired waterproof layer; Both the waterproof that can be used for conventional region, also can be used for the waterproof of the Special Areass such as movement joint, and with respect to other water-proof material, it has unique advantage to the waterproof of Special Areas.

Summary of the invention

The invention provides the uncured rubber asphalt base waterproof coating of a kind of creepage type, select the material and the subsidiary material that meet environmental requirement, regeneration, make this waterproof paint solvent-free (VOC) volatilization, forever uncured (wriggling), can automatically repair basic unit crack, reach the effect of permanent waterproof.Coating of the present invention can be used separately, also can be used in conjunction with other waterproof rolls.

The present invention realizes with following technical scheme:

A uncured rubber asphalt base waterproof coating, forms with the raw material mixed preparing of following (weight part):

Pitch: 10%～50%, preferably 20%～30%;

Softening agent: 20%～55%, preferably 20%～30%;

Polymer modifiers: 1%～20%, preferably 5%～18%;

Rubber powder: 8%～30%, preferably 15%～25%;

Tackifying resin: 5%～20%, preferably 8%～18%;

Filler: 0～30%, preferably 10%～20%;

According to the present invention, pitch is selected from rock asphalt, petroleum pitch or coal-tar pitch, preferred 70# petroleum pitch, solvent oil can be selected from one or more the combination in naphthenic oil, rubber oil, used oil, polymer modifiers is selected from one or more mixture of SBS, POE, divinyl rubber, chloroprene rubber, isoprene-isobutylene rubber kind, rubber powder is selected from as common rubber powder, the preferred common rubber powder of 50-200 order, tackifying resin is selected from petroleum resin, terpine resin, preferred C 5 hydrogenated resin, filler is selected from coarse whiting, stone flour, talcum powder, preferably coarse whiting.

The present invention also provides the preparation method of the uncured asphaltic base waterproof paint of the described creepage type of preparation, comprises the steps:

1, polymer modifiers is added together with softening agent in reactor, temperature rises to 160 ℃～200 ℃ and stirs 1～8 hour, and polymer modifiers is dissolved completely;

2, by asphalt heating to 130 ℃～160 ℃, pour reactor after metering into, temperature is controlled at 160 ℃～200 ℃, continues to stir 2～3 hours;

3, take quantitative rubber powder and pour in reactor, temperature is still controlled at 160 ℃～200 ℃, continues to stir 0.5～2 hour;

4, take quantitative tackifying resin again and pour reactor into, temperature is controlled at 160 ℃～200 ℃, continues to stir 0.5～2 hour;

5, take quantitative filler again and pour reactor into, temperature is controlled at 160 ℃～200 ℃, continues reaction 0.5～2 hour;

6, after modification finishes, stop stirring, cool the temperature to 60 ℃ of dischargings, obtain product.

Embodiment

Below by the non-limiting example the present invention that further explains, allly belong to following scope, all belong to protection scope of the present invention.

Embodiment 1

Uncured pitch is carried out to proportioning by following (table 1):

The uncured asphalt waterproofing paint formula table of table 1:

70# pitch	Rubber oil	POE	80 order rubber powders	Coarse whiting
					50%	20%	6%	9%	15%

Embodiment 2

Uncured asphalt waterproofing paint is carried out to proportioning by following (table 2):

The uncured asphalt waterproofing paint formula table of table 2:

90# pitch	Rubber oil	POE	50 order rubber powders	Coarse whiting
					50%	18%	6%	11%	15%

Embodiment 3

Uncured asphalt waterproofing paint is carried out to proportioning by following (table 3):

The uncured asphalt waterproofing paint formula table of table 3:

70# pitch	Used oil	Divinyl rubber	50 order rubber powders	Coarse whiting
					50%	20%	6%	11%	15%

Claims

1. the uncured asphaltic base waterproof paint of creepage type, by weight percentage, comprises following component:

Pitch: 10%～50%;

Solvent oil: 20%～55%;

Polymer modifiers: 1%～20%;

Common rubber powder: 8%～30%;

Tackifying resin: 5%～20%;

Filler: 0～30%.

2. the uncured asphaltic base waterproof paint of creepage type according to claim 1, is characterized in that: described pitch is from rock asphalt, petroleum pitch, coal-tar pitch and composition thereof.

3. the uncured asphaltic base waterproof paint of creepage type according to claim 1, is characterized in that: described solvent oil is rubber oil, naphthenic oil, used oil and composition thereof.

4. the uncured asphaltic base waterproof paint of creepage type according to claim 1, is characterized in that: described polymer modifiers is SBS, POE, divinyl rubber, chloroprene rubber, isoprene-isobutylene rubber and composition thereof.

5. the uncured asphaltic base waterproof paint of creepage type according to claim 1, is characterized in that: described tackifying resin is terpine resin, petroleum resin and composition thereof.

6. the uncured asphaltic base waterproof paint of creepage type according to claim 1, is characterized in that: described filler is stone flour, talcum powder, coarse whiting and composition thereof.

7. one kind as the preparation method of right 1～6 uncured asphaltic base waterproof paint of creepage type as described in requiring, it is characterized in that: polymer modifiers is added in reactor, then add solvent oil to be warming up to 160 ℃～180 ℃, stir 1～8 hour, after dissolving completely, polymer modifiers add pitch to continue to stir 2～3 hours, then add rubber powder to continue to stir 0.5～2 hour, then add and reenter tackifying resin stirring 0.5～2 hour, finally add filler to continue to stir 0.5～2 hour, cool the temperature to 60 ℃ of dischargings, obtain the described uncured asphaltic base waterproof paint of creepage type.

8. preparation method according to claim 7, the described triple mixing time is 0.5～2 hour independently, mixing speed is 50～300r.p.m.