CN101121871A - Nontoxic environmental protection solvent type adhesive and manufacturing method thereof - Google Patents

Abstract

The invention discloses a non-toxic environment-friendly solvent adhesive and manufacturing method, and a waterproofing adhesive applied to road, bridge floor and tunnel pavement. The compositions and mass components include bitumen (100 portions), rubber (10-100 portions) and non-toxic solvent (100-200 portions). In terms of manufacturing method, the non-toxic solvent is injected into a jacket agitator reaction kettle, and rubber and resin are added during agitation, and heated to 30-100 DEG C, 1-5h; the temperature of bitument is kept at 70-100 DEG C and added into the jacket agitator reaction kettle, and mixed for salvation reaction under 30-100 DEG C for 0.5-2h; cooling water is put into the jacket agitator reaction kettle, and the materials are cooled to 30-40 DEG C and packaged after discharge. The adhesive has the advantages of (1) low viscosity, strong permeability, and being capable to penetrate into the cement concrete or compact waterproofing layer formed by or micropores of a steel plate. (2) The film coating has sound flexibility, strong adaptability to base-layer contraction, deformation and disintegration; (3) high strength of the coating film; (4) The adhesive is suitable to construction under normal temperature and the construction process is very simple.

Description

Nontoxic environmental protection solvent type adhesive and manufacture method thereof

Technical field

The present invention relates to road, bridge floor, tunnel pavement waterproof binding agent, a kind of nontoxic environmental protection solvent type adhesive and manufacture method thereof especially are provided.

Background technology

Bridge is subject to the etch of rainwater, and rainwater shows as alkali environment damage in the rain penetration initiation concrete to the corrosive nature of bridge, and calcareous loss will definitely cause the concrete corrosion, and reinforcing bar gets rusty; To the steel bridge face, rain penetration will cause steel plate corrosion, and bridge intensity is reduced, and finally cause the bridge reduction in work-ing life.

In the past, some bridge is water layer in the air on surface layer is mated formation, main rely on that draining is come on slope and weep pipe in length and breadth, though some bridge floor has also been done waterproof layer, but it can't meet the quality requirement, and causes that the bridge surface layer occurs that infiltration, the pull-up of mating formation fall, cement concrete alkali-aggregate reaction, steel bar corrosion, steel plate corrosion and cause that bridge damages.In order to protect the bridge structures to exempt from the infiltration etch, improve the weather resistance of bridge, increase the service life, when the designs of road and bridge and construction, must pay much attention to the waterproof problem of road and bridge.

Abroad, country such as U.S. clearly regulation city and highway bridge must be provided with waterproof layer.China begins to pay attention to the problem that bridge suffers the rainwater etch from the eighties in 20th century, and has carried out many monographic studies with regard to the bridge structure waterproof technique.Think the subject matter that the bridge waterproof exists by researching and analysing: the one, the Bridge Design problem showing that mainly unreasonable the and stressed weak link of the design place of mating formation do not do WATER REPELLENT and the unreasonable problem that causes of bridge structure waterproofing design; The 2nd, the water-proof material problem mainly is the water-proof material that lacks the bridge special use; The 3rd, on the construction link, the waterproof construction quality does not form unified working specification and standard for acceptance as yet, lacks the bridge construction waterproof construction troop of specialty.

Domestic in the bridge of newly-built or transformation, the way of waterproofing work is to add waterproof layer between the skeleton construction of bridge or steel construction and asphalt concrete pavement layer.Present domestic water-proof material mainly contains road and bridge special-purpose water-proof coiled material, waterproof paint, waterproof and sealing material etc. based on flexible waterproof material.Waterproof roll high thermal resistance, impermeability, ageing resistance, anti-ly press against brokenly, high temperature shearing resistance, anti-low-temperature cracking all be better than waterproof paint, but easily play drum during the coiled material construction and cause slip; Waterproof paint has characteristics such as easy construction, cost is low, the road pavement planeness is less demanding, cohesiveness is good, but tensile strength that most coating is filmed and unit elongation are lower, and relatively poor to the adaptability of bridge deformation, rigidity is filmed then poorer.

In addition, the solvent type adhesive in the market generally contains aromatic hydrocarbon solvent harmful, environmental pollution threatens and produces and workmen healthy.

Summary of the invention

The purpose of this invention is to provide a kind of prescription and manufacture method thereof, simple, its effect waterproof, caking agent and manufacture method thereof that adhesiveproperties is good, nontoxic.

Thinking of the present invention is: in the time of on cement concrete bridge deck after the lower nontoxic environmental protection solvent type adhesive of viscosity sprays to processing or the steel bridge face; caking agent effectively water leaking-in cement concrete or steel plate micropore forms fine and close waterproof layer, can effectively protect bridge structure.Caking agent contains pitch in forming, and is good with bituminous concrete consistency, the affinity of the layer of mating formation, and can form organic whole with hot-mix asphalt mixture, avoids producing interformational sliding.Caking agent contains reasonably combined macromolecule resin in forming, and produces high physics and chemical bonding effect with cement concrete or steel plate, has improved curing material and the bonding force that is glued storeroom.Caking agent contains high-low temperature resistant in forming, and has elasticity and flexible rubber-like material, has improved cured article coating strength and snappiness.Consider harmlessly simultaneously, environment amenable solvent, and this kind solvent or poor to bitumen compatibility, or poor to resin compatible, or poor to rubber compatibility are so selective solvent is a difficult point.

The technical scheme that purpose of the present invention adopted is, is made up of pitch, rubber, resin, innoxious solvent, and the mass component of its composition is:

100 parts of pitches,

Rubber 10-100 part,

Resin 10-100 part,

Innoxious solvent 100-200 part.

Pitch of the present invention is No. 70 or No. 90 or No. 110 heavy traffic paving asphalts.

Rubber of the present invention is natural rubber or synthetic rubber.

Resin of the present invention is petroleum resin, coumarone indene resin, Gum Rosin, modified rosin resin.

Innoxious solvent of the present invention is fatty acid ester, Fatty Alcohol(C12-C14 and C12-C18), fatty ethers organic compound.

The present invention, its manufacture method is finished by following step:

Step 1: by mass ratio 100-200 part innoxious solvent is put into chuck stirring reaction pot, stir adding 10-100 part rubber, 10-100 part resin down, heat up, maintain the temperature under 30-100 ℃ 1-5h;

Step 2: in 70-120 ℃ container, 100 parts of pitches pressing mass ratio 70-120 ℃ add in the chuck stirring reaction pot of step 1 with asphalt thermal insulation, at 30-100 ℃ of following stirring and dissolving reaction, 0.5-2h;

Step 3: chuck stirring reaction pot leads to water coolant, when material is cooled to 30-40 ℃, and the discharging packing.

Nontoxic environmental protection solvent type adhesive is as bridge surface waterproof layer, and water-repellancy and cementability are splendid, is a kind of novel bridge floor waterproofing paint.Have following characteristics: 1. viscosity is low, perviousness is strong, and effectively water leaking-in cement concrete or steel plate micropore form fine and close waterproof layer, can effectively protect bridge structure; 2. the snappiness of filming is good, and base-layer contraction and strain cracking are had stronger adaptability; 3. coating strength height, not only with the bonding strength height of cement concrete or steel plate, and the shear behavior and the adhesiveproperties of the unitized construction after the bituminous concrete of mating formation are good; 4. normal temperature construction, construction technology is easy.

Embodiment

The present invention is further described below by specific embodiment.

(1) takes by weighing raw material by following proportioning

No. 70 petroleum pitch 300Kg,

SBS 136Kg，

Natural rubber 20Kg,

Petroleum resin 44Kg,

Ester gum 100Kg,

Mix senior alcohol ether 600Kg.

(2) preparation technology

1, will mix senior alcohol ether 600Kg and join in the 2000L chuck stirring reaction pot, stir adding SBS136Kg, natural rubber 20Kg, petroleum resin 44Kg, ester gum 100Kg down; Be warming up to 60 ℃, keep temperature to be 60 ℃ and stir 5h down.

2, No. 70 petroleum pitch are stored in 100 ℃ of homothermic basins, and No. 70 petroleum pitch 300Kg are pumped in the chuck stirring reaction pot, and control reaction temperature is 90 ℃, stirring and dissolving reaction 2h.

3, the logical water coolant of chuck stirring reaction pot, when material is cooled to 40 ℃, discharging, packing, pail pack is the 20Kg Galvanized Iron Drum.

(3) result's test

The physical and mechanical property and the technical indicator of the nontoxic environmental protection solvent type adhesive of preparing thus see Table 1.

The physical and mechanical property of table 1 nontoxic environmental protection solvent type adhesive and technical indicator

Test item			Technical indicator
					The I type	The II type
			Color				Black or brown	Black or brown
Proportion, Kg/L						0.95			0.95
			Solid content, %				≥45	≥48
Flash-point, ℃						≥26			≥28
			Aromatic hydrocarbon content, %				≤1	≤1
Viscosity (being coated with 4 viscometers), s						≤15			≤15
			Refer to do time (20 ℃), h				≤30	≤30
Set time (20 ℃), h						≤30			≤40
			Sticking power, MPa	20℃			≥1.0	≥1.0
40℃		≥0.6				≥0.6
				Infiltration coefficient, ml			≤1.0×10 -8	≤1.0×10 -8
Snappiness			Be not more than 1 grade						Be not more than 1 grade
				Mat formation bonding strength behind the bituminous concrete, MPa		20℃	≥1.0	≥1.0
40℃	≥0.4	≥0.5
			Mat formation shearing resistance behind the bituminous concrete, MPa			20℃	≥0.8	≥0.8
40℃	≥0.4	≥0.5

* the sticking power of I type is meant and the sticking power of cement concrete, and the sticking power of II type is meant the sticking power with steel plate.

Claims (6)

1. a nontoxic environmental protection solvent type adhesive is made up of pitch, rubber, resin, innoxious solvent, it is characterized in that the mass component of forming is:

100 parts of pitches,

Rubber 10-100 part,

Resin 10-100 part,

Innoxious solvent 100-200 part.

2. a kind of nontoxic environmental protection solvent type adhesive according to claim 1 is characterized in that: described pitch is No. 70 or No. 90 or No. 110 heavy traffic paving asphalts.

3. a kind of nontoxic environmental protection solvent type adhesive according to claim 1 is characterized in that: described rubber is natural rubber or synthetic rubber.

4. a kind of nontoxic environmental protection solvent type adhesive according to claim 1 is characterized in that: described resin is petroleum resin, coumarone indene resin, Gum Rosin, modified rosin resin.

5. a kind of nontoxic environmental protection solvent type adhesive according to claim 1 is characterized in that: described innoxious solvent is fatty acid ester, aliphatic alcohols organic compound.

6. nontoxic environmental protection solvent type adhesive manufacture method is characterized in that being finished by following step:

Step 1: by mass ratio 100-200 part innoxious solvent is put in the chuck stirring reaction pot, stirred adding 10-100 part rubber, 10-100 part resin down, heat up, maintain the temperature under 30-100 ℃ 1-5h;

Step 2: in 70-120 ℃ container, 100 parts of pitches pressing mass ratio 70-120 ℃ add in the chuck stirring reaction pot of step 1 with asphalt thermal insulation, at 30-100 ℃ of following stirring and dissolving reaction, 0.5-2h;

Step 3: chuck stirring reaction pot leads to water coolant, when material is cooled to 30 ~ 40 ℃, and the discharging packing.