CN105062416B - A kind of modified pitch sealing compound and its production method - Google Patents
A kind of modified pitch sealing compound and its production method Download PDFInfo
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- CN105062416B CN105062416B CN201510416785.5A CN201510416785A CN105062416B CN 105062416 B CN105062416 B CN 105062416B CN 201510416785 A CN201510416785 A CN 201510416785A CN 105062416 B CN105062416 B CN 105062416B
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Abstract
The invention discloses a kind of modified pitch sealing compounds, it is made of No. 90 pitches, SBR, tackifying resin, asphalt rubber composite vulcanizing agent, activator, coupling agent, rubber oil, activation rubber, inorganic filler, SBS.Production method is to stir after melting No. 90 pitches, tackifying resin, rubber oil heating and continue to heat up and keep the temperature；SBR, SBS, activation rubber are sequentially added after heat preservation, are added activator, inorganic filler after heating stirring, are eventually adding coupling agent, asphalt rubber composite vulcanizing agent cools to 145 DEG C of blowings after mixing evenly, and is cooled to room temperature.Sealing compound of the invention has the advantages that adhesiveness is strong, durability is good, safety and environmental protection, watertightness and air-tightness are good, good with self-adhesive coiled material compatibility；The production method of such modified pitch sealing compound have it is easy to operate, convenient for production, be suitable for industrialization large-scale production.
Description
Technical field
The invention belongs to the field of building materials, and in particular to a kind of modified pitch sealing compound and its production method.
Background technique
Sealant refers to be deformed due to sealing surface shape, is not easy to trickle, there is the sealing material of certain caking property, be for
Filling configuration gap, the adhesive to play sealing function, have the effects that anti-leak, waterproof, vibration proof and sound insulation, heat-insulated.
Self-adhesive coiled material is that anti-market for water uses more universal product now, and product itself is had excellent performance, but its engineering
The case where project leakage of implementation, is commonplace, the main reason is that auxiliary material matched with its is relatively fewer, does not form one
It is more bad than more complete water-proof system, such as some conventional mating sealing compounds and self-adhesive coiled material compatibility, for example polyurethane is close
Seal cream, silicone seal cream, ointment etc..There are also some mating sealing compound its physical properties commonly used are poor, be not able to satisfy sealing performance,
Water resistance and intensity requirement, such as uncured rubber asphalt waterproof coating, modified rubber emulsified asphalt etc..In adhesive waterproof coil
Often entire waterproof guard system is caused to fail because sealing compound selection is improper in node processing, this is that construction of self viscous reel material is answered
With the key factor of rear leakage.Therefore, a kind of leakproofness and water-tolerant are studied, intensity is high, good with self-adhesive coiled material compatibility
Sealing compound is the emphasis of this field research.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of modified pitch sealing compound, sealing compound tool
Have the advantages that excellent watertightness and air-tightness, adhesiveness are strong, durability is good, safety and environmental protection, good with self-adhesive coiled material compatibility；
Another object of the present invention is to provide the production method of such modified pitch sealing compound, this method has operation letter
It is single, convenient for production, be suitable for industrialization large-scale production.
The purpose of the present invention is achieved through the following technical solutions: a kind of modified pitch sealing compound, it is by following weight parts
Raw material composition:
Further, the needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than
1.5%.
Further, sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
Further, the activator is ZnO.
Further, the coupling agent is 3- aminopropyl triethoxysilane.
Further, the activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 145~160 DEG C and are stirred to after melting
50~70min is mixed, reaction kettle is continuously heating to 195~205 DEG C and keeps the temperature 25~45min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and add activator stirring after 3~4h of heating stirring
1~2h, inorganic filler stir 1~2h, are eventually adding coupling agent, asphalt rubber composite vulcanizing agent cools to after being stirred until homogeneous
145 DEG C of blowings, and be cooled to room temperature, modified pitch sealing compound is made.
It joined vulcanizing agent in the present invention, sealing compound macromolecule internal double bond quantity can be effectively reduced, and make by vulcanization
Macromolecule distribution broadens inside sealing compound, guarantees sealing compound high/low temperature and weatherability performance, while molecular weight increase can be promoted
The anti-fatigue performance of sealing compound, it is ensured that sealing compound will not cause brokenly in position of joints because of material deformation and stress variation
It is bad.
Joined coupling agent in the present invention can guarantee the adhesive strength of itself and basal plane, no after material construction is on basal plane
The phenomenon that being caused sealing compound to separate with basal plane by basal plane water-cut variation.Coupling agent has chance water water-disintegrable simultaneously, especially exists
Under acid or alkaline condition, hydrolysis rate quickly, therefore has to be eventually adding in entire sealing compound production process, prevents close
Envelope cream internal steam causes coupling agent to hydrolyze.
Activating rubber powder is also added into the present invention, which is reclaimed rubber, is a kind of waste recovery recycling, can have
Effect reduces harm of the waste old to environment.The activating rubber powder that the present invention uses be by high temperature desulfurizing and hydrogenating reduction again
Raw natural rubber rubber powder.Modification power to pitch is 3 times of conventional regeneration rubber powder or more.
No. 90 matrix pitches being added in the present invention are that a kind of pair of wax content requirement is very stringent, wax content requirement
Lower than 1.5%, the black brittleness of modified pitch can be effectively reduced, realize low-temperature adhesion.
Charging sequence is followed successively by rubber oil, No. 90 pitches, tackifying resin, SBR, SBS, activation rubber in production technology of the present invention
Glue, activator, inorganic filler, coupling agent, asphalt rubber composite vulcanizing agent.
Sealing compound of the invention is used to solve the node encapsulation process of present construction of self viscous reel material, is also used for coiled material cut away section
The repairing of position, it is ensured that coiled material is an entirety in any node.The present invention is by sealing paste formulation tune to modified asphalt
It is whole, increase the adhesive strength of sealing compound and basal plane and sealing compound and coiled material, it is good to provide a kind of self-adhesive coiled material detailed treatment compatibility
Sealing compound.
The invention has the following advantages that sealing compound of the invention has excellent watertightness and air-tightness, adhesiveness strong, resistance to
Long property is good, safety and environmental protection, with the good advantage of self-adhesive coiled material compatibility；The production method of such modified pitch sealing compound has operation
Simply, convenient for production, be suitable for industrialization large-scale production.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, and protection scope of the present invention is not limited to following institute
It states:
Embodiment 1: a kind of modified pitch sealing compound, it is made of the raw material of following weight parts:
The needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%.
Sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
The activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 145 DEG C and are stirred to after melting
50min, reaction kettle are continuously heating to 195 DEG C and keep the temperature 25min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and ZnO stirring 1h, nothing are added after heating stirring 3h
Machine filler stirs 1h, is eventually adding 3- aminopropyl triethoxysilane, asphalt rubber composite vulcanizing agent cools down after being stirred until homogeneous
It to 145 DEG C of blowings, and is cooled to room temperature, modified pitch sealing compound is made.
Embodiment 2: a kind of modified pitch sealing compound, it is made of the raw material of following weight parts:
The needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%.
Sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
The activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 160 DEG C and are stirred to after melting
70min, reaction kettle are continuously heating to 205 DEG C and keep the temperature 45min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and ZnO stirring 2h, nothing are added after heating stirring 4h
Machine filler stirs 2h, is eventually adding 3- aminopropyl triethoxysilane, asphalt rubber composite vulcanizing agent cools down after being stirred until homogeneous
It to 145 DEG C of blowings, and is cooled to room temperature, modified pitch sealing compound is made.
Embodiment 3: a kind of modified pitch sealing compound, it is made of the raw material of following weight parts:
The needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%.
Sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
The activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 150 DEG C and are stirred to after melting
55min, reaction kettle are continuously heating to 198 DEG C and keep the temperature 30min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and add ZnO stirring after heating stirring 3.2h
1.4h, inorganic filler stir 1.2h, are eventually adding 3- aminopropyl triethoxysilane, asphalt rubber composite vulcanizing agent is stirred to equal
145 DEG C of blowings are cooled to after even, and are cooled to room temperature, and modified pitch sealing compound is made.
Embodiment 4: a kind of modified pitch sealing compound, it is made of the raw material of following weight parts:
The needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%.
Sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
The activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 156 DEG C and are stirred to after melting
62min, reaction kettle are continuously heating to 200 DEG C and keep the temperature 40min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and add ZnO stirring after heating stirring 3.6h
1.5h, inorganic filler stir 1.8h, are eventually adding 3- aminopropyl triethoxysilane, asphalt rubber composite vulcanizing agent is stirred to equal
145 DEG C of blowings are cooled to after even, and are cooled to room temperature, and modified pitch sealing compound is made.
Embodiment 5: a kind of modified pitch sealing compound, it is made of the raw material of following weight parts:
The needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%.
Sulfur content is 80% in the asphalt rubber composite vulcanizing agent, maleic anhydride content 20%.
The activation rubber is the regeneration natural rubber rubber powder using high temperature desulfurizing and hydrogenating reduction.
The production method of above-mentioned modified pitch sealing compound, it the following steps are included:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 160 DEG C and are stirred to after melting
50min, reaction kettle are continuously heating to 202 DEG C and keep the temperature 42min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, and ZnO stirring 1.5h is added after heating stirring 3h,
2h is stirred in inorganic filler, is eventually adding 3- aminopropyl triethoxysilane, asphalt rubber composite vulcanizing agent drops after being stirred until homogeneous
Temperature is cooled to room temperature to 145 DEG C of blowings, and modified pitch sealing compound is made.
Below by way of description of test beneficial effects of the present invention:
1. test object: the modified pitch sealing compound of embodiment 1-5 preparation；
2. test index: stretch modulus, elastic restoration ratio stretch that stretch cementability, moisture substrate after cementability, immersion surely viscous surely
Knotting strength, heat ageing mass loss rate；
3. test method: being measured using conventional method；
4. test result: as shown in table 1.
Table 1: the modified pitch sealing compound the performance test results of embodiment 1-5 preparation
Claims (4)
1. a kind of modified pitch sealing compound, which is characterized in that it is made of the raw material of following weight parts:
No. 90 pitches: 90~110；SBR:4~7；
Tackifying resin: 5~8；Asphalt rubber composite vulcanizing agent: 0.5~1；
Activator: 1~4；Coupling agent: 1~3；
Rubber oil: 13~18；Activation rubber: 10~15；
Inorganic filler: 10~15；SBS:8~13；
Wherein, the needle penetration of No. 90 pitch is 90~100, and softening point is 42~45 DEG C, and wax content is lower than 1.5%；It is described
Sulfur content is 80% in asphalt rubber composite vulcanizing agent, maleic anhydride content 20%；The activation rubber is using high temperature desulfurizing
And the regeneration natural rubber rubber powder of hydrogenating reduction.
2. a kind of modified pitch sealing compound according to claim 1, it is characterised in that: the activator is ZnO.
3. a kind of modified pitch sealing compound according to claim 1, it is characterised in that: the coupling agent is 3- aminopropyl three
Ethoxysilane.
4. a kind of production method of modified pitch sealing compound according to claim 1, which is characterized in that it includes following step
It is rapid:
S1. No. 90 pitches, tackifying resin, rubber oil are added in reaction kettle, are warming up to 145~160 DEG C and are stirred to after melting
50~70min, reaction kettle are continuously heating to 195~205 DEG C and keep the temperature 25~45min；
S2. SBR, SBS, activation rubber are sequentially added after keeping the temperature, add after 3~4h of heating stirring activator stirring 1~
2h, inorganic filler stir 1~2h, are eventually adding coupling agent, asphalt rubber composite vulcanizing agent cools to 145 DEG C after being stirred until homogeneous
Blowing, and be cooled to room temperature, modified pitch sealing compound is made.
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| CN201510416785.5A CN105062416B (en) | 2015-07-15 | 2015-07-15 | A kind of modified pitch sealing compound and its production method |
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| CN201510416785.5A CN105062416B (en) | 2015-07-15 | 2015-07-15 | A kind of modified pitch sealing compound and its production method |
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| CN105885151B (en) * | 2016-06-23 | 2018-04-24 | 四川国星高分子树脂有限公司 | Asphalt normal-temperature regeneration agent and preparation method thereof |
| CN106147257A (en) * | 2016-07-01 | 2016-11-23 | 山东高速物资储运有限公司 | A kind of environment-friendly type road-surface heating type sealant material and preparation method thereof and application |
| CN115558309A (en) * | 2022-12-06 | 2023-01-03 | 四川金兴邑都建筑材料有限公司 | Processing method of waterproof sealing paste with excellent water resistance and asphalt on back water surface |
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| CN1037449C (en) * | 1992-07-24 | 1998-02-18 | 中国石油化工总公司齐鲁石油化工公司 | rubber modified asphalt for waterproof coiled material and preparation method thereof |
| CN101560331B (en) * | 2009-05-21 | 2011-02-09 | 天津市橡胶工业研究所 | Method for preparing self-adhesive particle regenerated rubber modified asphalt for self-adhesive waterproof rolls |
| CN104530727A (en) * | 2014-12-22 | 2015-04-22 | 孙艳春 | Asphalt binder for producing pre-paved and wet-paved waterproof roll as well as preparation method and application of asphalt binder |
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Address after: Group 6, Juntian village, Qingliu Town, Xindu District, Chengdu, Sichuan 610000 Patentee after: Sichuan Weidun ingenuity Construction Co.,Ltd. Address before: Group 6, Juntian village, Qingliu Town, Xindu District, Chengdu, Sichuan 610000 Patentee before: SICHUAN HONGYUAN WATERPROOF PROJECT Co.,Ltd. |
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