CN106497458A - The special CPVC base adhesives of quick-dry type tubing - Google Patents
The special CPVC base adhesives of quick-dry type tubing Download PDFInfo
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- CN106497458A CN106497458A CN201610992781.6A CN201610992781A CN106497458A CN 106497458 A CN106497458 A CN 106497458A CN 201610992781 A CN201610992781 A CN 201610992781A CN 106497458 A CN106497458 A CN 106497458A
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- Prior art keywords
- cpvc
- resin
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- special
- dry type
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J127/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers
- C09J127/22—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers modified by chemical after-treatment
- C09J127/24—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers modified by chemical after-treatment halogenated
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of special CPVC base adhesives of quick-dry type tubing, including following parts by weight of component:15 25 parts of polyvinyl chloride resin, 70 80 parts of low poison solvent, described CPVC resins are made up of two kinds of mixed with resin of low-molecular-weight CPVC Resin A and high molecular CPVC resin B.The invention has the beneficial effects as follows:The solvent-based adhesive of resin based on CPVC, not only toxicity is low, and can be applied widely according to pipeline caliber size, job site regulating working conditions adhesive solidification speed degree.Additionally, the adhesive preparation method is simple to operation, adhesive property is excellent, and particularly heat resistance is projected, and has further expanded products application range.
Description
Technical field
The present invention relates to a kind of adhesive of the tubing for the engineering plastics material such as such as PVC, CPVC.
Background technology
Processing that hard plastics are widely used in the industries such as chemical industry, metallurgy, weaving, building is heat-resisting, corrosion resistant pipe
Road and equipment.Wherein, RPVC (PVC) tubing with its intensity big, corrosion-resistant, inexpensive, update convenient the features such as be subject to
User unanimously approves that global Year's consumption is huge.In recent years, the application of chliorinated polyvinyl chloride (CPVC) material has obtained deeply pushing away
Extensively.Chliorinated polyvinyl chloride (CPVC) is by the product after polrvinyl chloride (PVC) further chlorination, its structural formula and PVC very phases
Seemingly, but polarity is bigger, dissolubility, thermostability, corrosion resistance more preferably, are suitable for harsher working condition and require.Such as India, sand
Top grade Arab countries, due to tropical, high-temperature exposure and fluid media (medium) is of poor quality, common polychloroethylene pipes can not
Meet application request, the demand of chliorinated polyvinyl chloride (CPVC) tubing is increased year by year;This consumption drives also progressively band
A lot of developing country's consumption in this respect such as China's Mainland are moved.
Connecting mode of PVC, CPVC pipeline in post-forming process has flange, bolt, kink, welding and gluing
Deng, wherein gluing construction facilitate the most.The method has certain glue-joint strength and extensive adaptability, is a kind of worth recommendation
Method.The adhesive for being commonly used for PVC, CPVC pipeline gluing mostly is the resin-based solvent-based adhesives of CPVC.Root
According to " similar mix " principle of polymer substance structure, CPVC base adhesives in coating process, by contained in adhesive
Organic solvent corrosion softens PVC, CPVC pipeline needs the top layer of bonding portion, makes bonding plane bond company by certain external force is applied
Connect;At the same time, the CPVC resins in adhesive are filled into rapidly tack coat, and tack coat is not deposited substantially with because belonging to a kind of material
Strain cracking after hardening, ensure that the high-strength feature of PVC, CPVC pipeline material itself.
Related PVC, CPVC tubing solvent-based adhesive has necessarily been reported and has been studied.Such as Chu Heng, Chen Xuhuang etc. exist《Change
The development of property hard PVC adhesive》(Hubei Chemical, 1999, (4):One kind Chlorinated EthylenePropylene Rubber is described in 17-18)
(CEPDM), the hard plate material solvent-borne type glue of the common modification CPVC of chlorinated polyethylene (CPE), ethylene-vinyl acetate (EVA)
Stick, shear strength have been better than domestic like product up to 6.3Mpa.Xu Guoping exists《The development of Hard PVC Pipe adhesive and property
Energy》(Chinese adhesive, 1995, (1):A kind of solution maintaining equilibrium for bonding hard PVC pipe is developed in 39-41), is proposed
If can accelerate using the fast solvent cures speed of volatility, bonding can be improved according to appropriate coupling agent, thixotropic agent and filler strong
Degree, according to the pliability that flexible polymeric can increase adhesive under conditions of the intensity for not reducing glue.Xie Yuchun exists《Chlorine
The preparation of chlorinated polynvinyl chloride (CPVC) adhesive and Study on Performance》(polrvinyl chloride, 1984, (4):Describe domestic CPVC in 38-41)
Several CPVC adhesive that resin and tetrahydrofuran, Ketohexamethylene, butanone, ethyl acetate, organotin etc. make, make to adhesive
Glue surfaces, coating temperature, it is glued time, bondline thickness, the analysis of corrosion-resistant and heat resistant test, and instance analysis effectiveness.In
State's patent CN1844286A, CN102102474A individually discloses gluing for the solvent-borne type of hard PVC and CPVC pipeline materials
Agent.The adhesive that above research report is obtained can be used in the bonding of PVC, CPVC pipeline, but there is many can not be ignored
Defect, most prominent has at following 4 points:
1) based on polyvinyl chloride resin or modified PVC resin resin adhesive for CPVC pipelines bonding imitate
Fruit is not universal good, and fastness is poor, particularly poor heat resistance, easy to crack, quick-fried under the working condition of extremely hot environment or conveying hot water
Split;
2) in order to ensure some performances such as adhesive strength of adhesive, benzene class (such as toluene, dimethylbenzene) and chloro have been used
The toxicity such as hydro carbons (such as dichloroethanes, trichloro ethylene) are larger and volatile organic solvent, and VOC content is high, no matter in construction
Or use, all staff and surrounding are worked the mischief;
3) although some adhesive have used low poison solvent, solvent volatility to be short of for environmental requirement, it is unfavorable for existing
The quick-drying requirement of field low temperature;
4) excessive implant is added in adhesive, and such as coupling agent, inorganic filler increased preparation fussy degree, no
It is beneficial to mass production promotion.
Content of the invention
It is an object of the invention to provide a kind of special CPVC base adhesives of quick-dry type tubing, to overcome prior art to exist
Defect.
The special CPVC base adhesives of quick-dry type tubing of the present invention, including following parts by weight of component:
CPVC resin 15-25 parts
Low poison solvent 70-80 parts
Described CPVC resins, by low-molecular-weight CPVC Resin A and two kinds of mixed with resin structures of high molecular CPVC resin B
Into being easy to mate different viscosity, and embody different adhesive strengths;
Low-molecular-weight CPVC Resin A is 8: 2-5: 5 with the weight ratio of high molecular CPVC resin B, is preferred with 7: 3 especially;
The mean molecule quantity of the low-molecular-weight CPVC Resin A 35,000-55,000, especially with 45,000-50,000 is
Good;
The mean molecule quantity of the high molecular CPVC resin B 60,000-100,000, especially with 80,000-90,000 is
Good;
The low toxicity organic agent, is grouped into by the group of following percentage by weight:
Tetrahydrofuran 30~50%,
Ketone 25~50%,
Ester 0~25%.
Described ketones solvent in Ketohexamethylene, butanone, acetone or the methyl iso-butyl ketone (MIBK) more than one;
Described esters solvent is selected from one or more of methyl acetate, ethyl acetate or butyl acetate;
Preferably, the special CPVC base adhesives of described quick-dry type tubing, also include auxiliary agent;
Described auxiliary agent is selected from one or more of filler, dispersant or thixotropic agent etc.;
Described filler such as calcium carbonate superfine powder, superfine white carbon black, superfine titanium white;
Term " ultra-fine ", refers to that particle size is little, there is no a strict definition, and particle diameter is from several nanometers to tens microns
Granule all can be collectively referred to as " superfine powder ".In this specification, involved " ultra-fine " diameter of particle is the sub-micro of 0.1~45um
Rice flour body, micro-powder and fine powder body.
Described dispersant such as superfine titanium white, polyvinyl alcohol, cationic cellulose;
Described thixotropic agent such as superfine white carbon black, organobentonite;
Preferably, the special CPVC base adhesives of described quick-dry type tubing, including the component of following percentage by weight:
CPVC resin 15-25 parts
Low poison solvent 70-80 parts
Auxiliary agent 2-6 parts
The invention has the beneficial effects as follows:
The solvent-based adhesive of resin based on CPVC, not only toxicity is low, and can according to pipeline caliber size,
Job site regulating working conditions adhesive solidification speed degree, applied widely.Additionally, the adhesive preparation method is simply easily grasped
Make, adhesive property is excellent, particularly heat resistance is projected, and has further expanded products application range.
Specific embodiment
Embodiment 1
1 formula of table is pressed, the raw materials such as organic solvent, calcium carbonate superfine powder, CPVC Resin As and CPVC resin Bs is weighed successively and is added
Enter in closed mixing kettle, heat up stirring, and kettle temperature control is at 40 DEG C;Timing 2 hours, after resin and auxiliary agent are completely dissolved,
Cooling down closes stirring to room temperature;Pour into closed stand-by in iron sheet zinc pot.
Table 1
Table 2 is according to the basic product property of adhesive obtained in above-mentioned formula and method and using adhesive bonding CPVC
The physical property data that pipeline is measured.
Table 2
* hydrostatic adopt 1/2 ' CPVC pipe (DN20) with the elbow bonding, room temperature of processs standing 14d after test (reference
ASTM F493-10);
* tensile shear strengths are mutually bonded using 100mm × 25mm × 2mm specification CPVC sheet materials, stand 7d under room temperature after
Test (with reference to GB/T7124-2008).
Embodiment 2- embodiment 8
Such as preparation method and method of testing in embodiment 1, adhesive is obtained by 3 formula of table composition, each performance characteristic is such as
Shown in table 4.
Wherein:Kettle temperature control is at 50 DEG C;Timing 1 hour;
The molecular weight of CPVC Resin As is 90,000 for the molecular weight of 45,000, CPVC resin B;
Table 3
Table 4
Claims (9)
1. special CPVC base adhesives of quick-dry type tubing, it is characterised in that including following parts by weight of component:
CPVC resin 15-25 parts
Low poison solvent 70-80 parts
Described CPVC resins, are made up of two kinds of mixed with resin of low-molecular-weight CPVC Resin A and high molecular CPVC resin B.
2. special CPVC base adhesives of quick-dry type tubing according to claim 1, it is characterised in that low-molecular-weight CPVC
Resin A is 8: 2-5: 5 with the weight ratio of high molecular CPVC resin B.
3. special CPVC base adhesives of quick-dry type tubing according to claim 1, it is characterised in that the low-molecular-weight
The mean molecule quantity of CPVC Resin As is in 35,000-55,000;
The mean molecule quantity of the high molecular CPVC resin B is in 60,000-100,000.
4. special CPVC base adhesives of quick-dry type tubing according to claim 2, it is characterised in that the low-molecular-weight
The mean molecule quantity of CPVC Resin As is in 35,000-55,000;
The mean molecule quantity of the high molecular CPVC resin B is in 60,000-100,000.
5. the special CPVC base adhesives of quick-dry type tubing according to any one of Claims 1 to 4, it is characterised in that institute
Low toxicity organic agent is stated, is grouped into by the group of following percentage by weight:
Tetrahydrofuran 30~50%,
Ketone 25~50%,
Ester 0~25%.
6. special CPVC base adhesives of quick-dry type tubing according to claim 5, it is characterised in that described ketone is molten
Agent in Ketohexamethylene, butanone, acetone or the methyl iso-butyl ketone (MIBK) more than one;
Described esters solvent is selected from one or more of methyl acetate, ethyl acetate or butyl acetate.
7. special CPVC base adhesives of quick-dry type tubing according to claim 6, it is characterised in that also include auxiliary agent.
8. special CPVC base adhesives of quick-dry type tubing according to claim 7, it is characterised in that described auxiliary agent choosing
From one or more of filler, dispersant or thixotropic agent.
9. special CPVC base adhesives of quick-dry type tubing according to claim 8, it is characterised in that described filler
It is selected from calcium carbonate superfine powder, superfine white carbon black, superfine titanium white;
The dispersant is selected from superfine titanium white, polyvinyl alcohol or cationic cellulose;
Described thixotropic agent such as superfine white carbon black, organobentonite;
The special CPVC base adhesives of described quick-dry type tubing, including the component of following percentage by weight:
CPVC resin 15-25 parts
Low poison solvent 70-80 parts
Auxiliary agent 2-6 parts.
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CN201610992781.6A CN106497458A (en) | 2016-11-01 | 2016-11-01 | The special CPVC base adhesives of quick-dry type tubing |
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CN201610992781.6A CN106497458A (en) | 2016-11-01 | 2016-11-01 | The special CPVC base adhesives of quick-dry type tubing |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0643116A2 (en) * | 1993-09-15 | 1995-03-15 | Ips Corporation | Low voc (volatile organic compounds), solvent-based CPVC pipe adhesives which maintain joint adhesive performance |
CN104263251A (en) * | 2014-10-21 | 2015-01-07 | 芜湖中源赛特管业有限公司 | PVC (Polyvinyl Chloride) hard tube adhesive and preparation method thereof |
CN104342071A (en) * | 2014-10-21 | 2015-02-11 | 芜湖中源赛特管业有限公司 | Adhesive for PVC (Polyvinyl Chloride) pipes and preparation method thereof |
-
2016
- 2016-11-01 CN CN201610992781.6A patent/CN106497458A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0643116A2 (en) * | 1993-09-15 | 1995-03-15 | Ips Corporation | Low voc (volatile organic compounds), solvent-based CPVC pipe adhesives which maintain joint adhesive performance |
CN104263251A (en) * | 2014-10-21 | 2015-01-07 | 芜湖中源赛特管业有限公司 | PVC (Polyvinyl Chloride) hard tube adhesive and preparation method thereof |
CN104342071A (en) * | 2014-10-21 | 2015-02-11 | 芜湖中源赛特管业有限公司 | Adhesive for PVC (Polyvinyl Chloride) pipes and preparation method thereof |
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Application publication date: 20170315 |