CN108386623A - A kind of anti-aging PPR composite plastic pipes and preparation method - Google Patents
A kind of anti-aging PPR composite plastic pipes and preparation method Download PDFInfo
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- CN108386623A CN108386623A CN201810121599.2A CN201810121599A CN108386623A CN 108386623 A CN108386623 A CN 108386623A CN 201810121599 A CN201810121599 A CN 201810121599A CN 108386623 A CN108386623 A CN 108386623A
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- ppr
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- plastic pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/043—Drying and spraying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- Chemical & Material Sciences (AREA)
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Abstract
The present invention relates to a kind of anti-aging PPR composite plastic pipes and preparation methods, belong to PPR composite plastic pipe technical fields.The material of a kind of anti-aging PPR composite plastic pipes of the present invention, including interior tube layer and external tube layer, sandwich establishment between said inner tube layer and the external tube layer, interior tube layer and external tube layer is atactic copolymerized polypropene, and the microcapsules of cladding aluminium powder are filled in interlayer.The anti-aging PPR composite plastic pipes of the present invention, ball aluminum powder particle is scattered in epoxidized soybean oil, then Freezing smashing, capsule material resin is deposited in its surface spray, the microcapsules of cladding aluminium powder are obtained, then microcapsules are filled to the interlayer among the double-deck PPR pipe and obtain anti-aging PPR multiple tubes.Without aluminium powder and PPR are squeezed out blending and modifying, without considering the problems of the two poor compatibility, the aluminium powder sustained release in capsule is deposited in interlayer, is formed one layer of fine and close oxidation film, is played a good protective effect to internal layer, improve the anti-aging property of PPR pipe.
Description
Technical field
The present invention relates to a kind of anti-aging PPR composite plastic pipes and preparation methods, belong to PPR composite plastic Manifold technologies neck
Domain.
Background technology
PPR pipe is the abbreviation of 3 third polyethylene pipes, is called polypropylene random copolymer pipe, by the way of thermal welding, has
Dedicated welding and cutting tool have higher plasticity.PPR pipe is moderate, performance is stablized, and heat insulation is corrosion-resistant, interior
The smooth non-scaling of wall, pipe-line system are safe and reliable and impermeable, and service life was up to 50 years.PPR pipe and traditional cast iron
The pipelines such as pipe, coating steel pipe, pipe of cement are compared, and there is energy-saving material-saving, environmental protection, high-strength light, corrosion-resistant, inner wall smooth not to tie
Dirt, the advantages that construction and repair are easy, service life is long, be widely used in building water supply and drainage, town and country plumbing, city gas,
Construction industries, municipal administration, industry and the agriculture field such as electric power and cable jacket, industrial fluids conveying, agricultural irrigation.Especially at home
Feedwater piping is commercially available universal, is the maximum Building Cooling water pipe of current dosage.
Containing a large amount of unstable tertiary carbon atoms in PPR molecular chain structures, light, oxygen, impurity are more easy to than PE（As copper, iron from
Son）Effect and aging.Therefore, PPR pipe is irradiated degradation easy to aging by ultraviolet light for a long time, while the hardness of PPR pipe is relatively low, 5 DEG C
Following black brittleness is apparent.To solve such defect, addition is mostly used in industry by antioxidant, ultraviolet absorber, light stabilizer
Improve ageing resistance with the composite assistant of metallic ion passivation agent synthesis, or impact modifier is added to improve the works such as black brittleness
Skill.
Application No. is 201410218173.0 patents of invention to disclose anti-aging, the antibiotic plastic particle of one kind and its bilayer
The preparation method of PPR pipe, by No. 10 0.1-5 parts of white oils, 2-8 parts of polyethylene wax, 0.1-5 parts of silane coupling agent, polyvinyl resin
20-40 parts, homogenizer mixing is added in 5-10 parts of the oyster shell whiting of 80-100 mesh, 3-6 parts of the load silver bamboo charcoal powder of 80-200 mesh,
Pass through double screw extruder extruding pelletization after mixing to obtain the final product.The invention, which also discloses, utilizes this natural anti-aging, antibacterial
The degerming of composite plastic particle preparation, uvioresistant, antistatic, the fire-retardant double-deck PPR pipe method.The invention is mainly to PPR pipe
The material of material is improved, and is added oyster shell whiting, is carried the various auxiliary agents such as silver-colored bamboo charcoal powder, is easy that there are auxiliary agent dispersion unevenness to cause
The unstable situation of pipe performance.
Application No. is PPR pipe and its preparations that 201110197675.6 patent of invention discloses a kind of high durable
Method, the PPR pipe of the high durable include the component of following parts by weight：PPR100 parts, 4 parts of Masterbatch, composite assistant 1.3
Part, the composite assistant includes that weight proportion is 8：2：2：1 is antioxidant, ultraviolet absorber, light stabilizer and metal ion
Passivator.The present invention is showed signs of anger carrier by the alternate copolymer of octadecyl vinyl ether and maleic anhydride, adds diffusing oil and silicon
Alkane coupling agent soaks surface of pigments, and obtained tubing inside and outside wall is smooth, and zero defect, product meets the phase in national standard
It closes and requires, compared with the tubing of regular convention formula production, mechanical property and ageing-resistant performance of tubing etc. are significantly improved,
The extension of tubing oxidation induction time, the raising of tubing impact strength, tubing hydraulic pressure strength and tubing ageing-resistant performance are carried
It is high.The invention also mainly the material of PPR pipe is improved, add various auxiliary agents, be easy there are auxiliary agent dispersion not
Equal situation.
Application No. is PPR pipe and its manufactures that 201310500794.3 patent of invention discloses a kind of high ageing resistance
Method chooses PPR raw materials, a certain amount of zinc powder is added and is sufficiently mixed uniformly；It is added in uniformly mixed PPR and zinc powder mixture
DOP liquid medicine；By the PPR that DOP liquid medicine is added with zinc powder mixture merging molding machine, it is heated to 200-230 DEG C, 1-3 points of heat preservation
Clock, until gluey raw material is made in mixture；Manufactured gluey raw material is put into squeeze out in double screw extruder and selects grain, is used later single
Screw rod pipe extruder carries out squeezing pipe molding.PPR pipe made of the invention can be inside tubing and table due to the addition of zinc powder
Face forms layer of ZnO layer, significantly improves the anti-aging property of tubing；The hardness and black brittleness of tubing can be promoted simultaneously.It should
Invention is to add zinc powder preparing raw material, is easy there is a situation where that zinc powder has dispersion unevenness, while having used DOP plasticising
Agent, leading to hot water for a long time may be such that plasticizer oozes out, unhealthful.
Invention content
For disadvantages described above, the object of the present invention is to provide a kind of anti-aging PPR composite plastic pipes and preparation methods.
First technical problem that the present invention solves is to provide a kind of anti-aging PPR composite plastic pipes.
The anti-aging PPR composite plastic pipes of the present invention, including a tube body, the tube body include interior tube layer 1 and external tube layer 2, institute
State sandwich establishment 3 between interior tube layer 1 and the external tube layer 2, the material of interior tube layer 1 and external tube layer 2 is atactic copolymerized polypropene
（That is PPR）, microcapsules are filled in interlayer 3, and the preparation method of the microcapsules is as follows：
I, the pretreatment of aluminium powder：Ball aluminum powder is scattered in epoxidized soybean oil, then Freezing smashing, its grain size is made to be less than
200nm；
II, sprayed deposit：Capsule material resin is dissolved in solvent, ensures a concentration of 20~40wt% of capsule material resin solution, is then added
Enter pretreated aluminium powder, it is 20~30wt% to make its solid content, and after stirring 30~60min, spray drying obtains package aluminium powder
Microcapsules.
The anti-aging PPR composite plastic pipes of the present invention, ball aluminum powder particle is scattered in epoxidized soybean oil, powder is then freezed
It is broken, capsule material resin is deposited in its surface spray, obtains the microcapsules of cladding aluminium powder, then microcapsules are filled into the double-deck PPR pipe
Between interlayer obtain anti-aging PPR multiple tubes.Without aluminium powder and PPR are squeezed out blending and modifying, without considering that the two is compatible
Property difference problem, the aluminium powder sustained release in capsule is deposited in interlayer, forms one layer of fine and close oxidation film, played to internal layer good
Protective effect improves the anti-aging property of PPR pipe.
Wherein, the thickness of interlayer 3 will influence the anti-aging property of PPR pipe.Thickness is too thin, anti-aging poor performance, and
Thickness is too thick, and the microcapsules of filling are excessive, it will causes the waste of material.Preferably, the thickness of the interlayer 3 is 1~5mm；
It is furthermore preferred that the thickness of the interlayer 3 is 3mm.
Microcapsules are an important factor for influencing anti-aging property.The microcapsules of the present invention are mainly coated using capsule material resin
Nano metal aluminium powder.Wherein, step I is the pretreatment of aluminium powder, primarily to obtaining the nanometer aluminium powder that grain size is less than 200nm.
Ball aluminum powder is scattered in epoxidized soybean oil first, it is preferred that the weight ratio of ball aluminum powder and epoxidized soybean oil
It is 1~5:1；It is furthermore preferred that ball aluminum powder and the weight ratio of epoxidized soybean oil are 3:1.
Its dispersed homogeneous degree will influence follow-up Freezing smashing, in order to preferably be disperseed, it is preferred to use ultrasonic wavelength-division
Scattered instrument is disperseed.Ultrasonic wave is a kind of sound wave of the frequency higher than 20000 hertz, its good directionality, penetration capacity is strong, easily
In obtaining the acoustic energy relatively concentrated, ultrasonic disperse refers to being acted on by " cavitation " of ultrasonic wave in a liquid using liquid as medium, will
Particle in liquid carries out the process of dispersion and de-agglomerated.Ultrasonic wave separating apparatus may be used in ultrasonic disperse.Common ultrasonic wave
Separating apparatus is suitable for the present invention.
Conventional method may be used in the Freezing smashing of the present invention, it is only necessary to ensure that the aluminium powder grain size after crushing is less than 200nm
It can.For example, being crushed using freezing crusher.
Step II is the committed step for preparing microcapsules.Capsule material resin is dissolved in solvent, ensures capsule material resin solution
Then pretreated aluminium powder is added in a concentration of 20~40wt%, it is 20~30wt% to make its solid content, after stirring 30~60min,
Spray drying obtains the microcapsules of package aluminium powder.
Wherein, the capsule material resin is Arabic gum, maltodextrin or gelatin.The molten of capsule material resin can commonly be dissolved
Agent is suitable for the present invention.In order to cost-effective, it is preferred that the solvent is water.
In order to which microcapsules are preferably prepared, it is preferred that in step II, be added before pretreated aluminium powder, also add
Enter emulsifier, the addition of emulsifier is the 1~5% of capsule material weight resin.Emulsifier is added, it is good can so that liquid has
Stability, be conducive to being smoothed out for spray-drying process.In addition, emulsifier is added, the wall material tree for being dissolved in water can also be made
Fat is gathered in very small core material（That is aluminium powder）Around, oil-in-water emulsion is formed, in spray-drying process, wall material moisture
It evaporates rapidly, wraps core material and form microcapsules.
Common emulsifier is suitable for the present invention, it is preferred that the emulsifier be Sodium Polyacrylate, polyacrylamide or
Lignosulfonates.
Spray drying is a kind of method that systematization technique is applied to dry materials.By solvent or diluent through atomization in hothouse
Afterwards, in the contact with hot-air, moisture rapid vaporization is to get to dry products.The method can directly make solution, emulsion drying
Powdering or particulate preparation can save the processes such as devaporation, crushing.The advantages of this method be mainly rate of drying height, the period,
Temperature of charge is low etc..Its basic principle be the effect by dry liquid by atomizer is sprayed into very subtle droplet, and
It is mixed with the uniform of droplet by dried medium such as hot-air, flue gas or inert gas etc., carries out heat exchange and mass transter, make
It obtains solvent gasification or makes fusant solidification.The microcapsules of package nanometer aluminium powder are made using spray drying by the present invention.
Preferably, in step II, then pretreated aluminium is added in a concentration of 30wt% of capsule material resin solution
Powder, it is 28wt% to make its solid content.
Second technical problem that the present invention solves is to provide a kind of preparation method of anti-aging PPR composite plastic pipes.
The preparation method of the anti-aging PPR composite plastic pipes of the present invention, includes the following steps：
A, the preparation of microcapsules：Microcapsules are prepared according to the preparation method of above-mentioned microcapsules；
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will be respectively
As interior tube layer 1 and external tube layer 2, combination obtains the compound PPR pipe with interlayer 3；
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
Wherein, a steps and b step can first carry out a steps, obtain microcapsules, then carry out b step, obtain without time sequencing
To compound PPR pipe, b step can also be first carried out, compound PPR pipe is obtained, then carry out a steps, obtains microcapsules；It can also be by a
Step and b step are carried out at the same time.
Atactic copolymerized polypropene, is polyacrylic one kind, and the basic structure of its macromolecular chain is different types of with adding
Monomer molecule is modified.Ethylene is most common monomer, it causes the change of polypropylene physical property.Compared with homopolymer,
Random copolymer improves optical property（It increases transparency and reduces preformed casse）, improved shock resistance, increases and scratches
Property, fusion temperature is reduced, to also reduce hot melt jointing temp；Simultaneously in chemical stability, water vapour isolation performance and device
Official's sensory property（Low aroma and flavor）Aspect is essentially identical with homopolymer.The PPR pipe of the present invention is exactly atactic copolymerized polypropene
Pipe, therefore, it is necessary to carry out extrusion preparation using atactic copolymerized polypropene for raw material.
Wherein, it squeezes out and conventional plastic pipe production device may be used to carry out, expressing technique can also use existing
Some technique.
In b step, the method that the tubing that two diameters differ is combined into multiple tube can also be used into routine, be
Ensure that the consistency of pipe performance, preferred combined method are as follows：The small pipe of diameter is put into the big pipe of diameter, and is ensured
Two round centers of circle of compound PPR pipe cross section are in same position.Ensure the center of circle of cross section in same position, it is ensured that production
The performance of product PPR pipe is consistent at each position of tubing.
Compared with prior art, the present invention has the advantages that：
The anti-aging PPR composite plastic pipes of the present invention, ball aluminum powder particle is scattered in epoxidized soybean oil, powder is then freezed
It is broken, capsule material resin is deposited in its surface spray, obtains the microcapsules of cladding aluminium powder, then microcapsules are filled into compound PPR pipe
Between interlayer obtain anti-aging PPR multiple tubes.It is not necessary that aluminium powder and PPR are squeezed out blending and modifying, without considering the two poor compatibility
The problem of, the aluminium powder sustained release in capsule is deposited in interlayer, forms one layer of fine and close oxidation film, good protection is played to internal layer
Effect, improves the anti-aging property of PPR pipe.In addition, the present invention is without using other auxiliary agents, it is healthy and safe.
Description of the drawings
Fig. 1 is the cross-sectional view of the anti-aging PPR composite plastic pipes of the present invention；
In figure, 1 is interior tube layer；2 be external tube layer；3 be interlayer.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 1:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 20wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 1% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
20wt%, after stirring 30min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is Arabic gum；The breast
Agent is Sodium Polyacrylate.
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will
Respectively as interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross
The center of circle in section obtains the compound PPR pipe with interlayer 3 in same position, combination.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 1mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Embodiment 2
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will be respectively
As interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross sections
The center of circle in same position, combination obtains the compound PPR pipe with interlayer 3.
B, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 5:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 40wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 5% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
30wt%, after stirring 60min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is maltodextrin；The breast
Agent is polyacrylamide.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 5mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Embodiment 3
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 2:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 25wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 2% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
25wt%, after stirring 40min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is gelatin；The emulsifier
For lignosulfonates.
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will
Respectively as interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross
The center of circle in section obtains the compound PPR pipe with interlayer 3 in same position, combination.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 3mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Embodiment 4
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 4:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 35wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 4% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
22wt%, after stirring 50min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is Arabic gum；The breast
Agent is Sodium Polyacrylate.
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will
Respectively as interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross
The center of circle in section obtains the compound PPR pipe with interlayer 3 in same position, combination.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 2mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Embodiment 5
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 3.5:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 28wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 3% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
24wt%, after stirring 40min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is Arabic gum；The breast
Agent is Sodium Polyacrylate.
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will
Respectively as interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross
The center of circle in section obtains the compound PPR pipe with interlayer 3 in same position, combination.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 4mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Embodiment 6
Anti-aging PPR composite plastic pipes are prepared with the following method：
A, the preparation of microcapsules：
, aluminium powder pretreatment：Ball aluminum powder is added in epoxidized soybean oil, ultrasonic disperse, then Freezing smashing, makes its grain size
Less than 200nm；Wherein, ball aluminum powder and the weight ratio of epoxidized soybean oil are 3:1.
, sprayed deposit：Capsule material resin is dissolved in aqueous solvent, ensures a concentration of 30wt% of capsule material resin solution, then
Emulsifier is added, the addition of emulsifier is the 3% of capsule material weight resin, adds pretreated aluminium powder, makes its solid content be
28wt%, after stirring 50min, spray drying obtains the microcapsules of package aluminium powder；The capsule material resin is Arabic gum；The breast
Agent is Sodium Polyacrylate.
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will
Respectively as interior tube layer 1 and external tube layer 2, the small PPR pipe of diameter is put into the big PPR pipe of diameter, and ensures two PPR pipe cross
The center of circle in section obtains the compound PPR pipe with interlayer 3 in same position, combination.
C, it fills：Microcapsules are filled into the interlayer 3 of compound PPR pipe, anti-aging PPR composite plastic pipes are obtained.
The cross section of the anti-aging PPR composite plastic pipes is as shown in Figure 1, include interior tube layer 1 and external tube layer 2, said inner tube
The material of sandwich establishment 3 between layer 1 and the external tube layer 2, interior tube layer 1 and external tube layer 2 is PPR, and micro- glue is filled in interlayer 3
Capsule, and the thickness of interlayer 3 is 3mm.
Ageing resistance experiment is carried out to the PPR pipe, it is bright and clean to be measured using hernia light irradiation accelerated ageing 5000 hours for its
Conservation rate is spent, the result is shown in tables 1.
Comparative example 1
PPR pipe is obtained using the method described in embodiment 1 in 201310500794.3, and ageing resistance examination is carried out to it
It tests, using hernia light irradiation accelerated ageing 5000 hours, measures its finish conservation rate, the result is shown in tables 1.
Comparative example 2
Ageing resistance experiment is carried out to common PPR pipe, its finish was measured using hernia light irradiation accelerated ageing 5000 hours
Conservation rate, the result is shown in tables 1.
Table 1
| Number | Finish（%） |
| Embodiment 1 | 99.1 |
| Embodiment 2 | 99.1 |
| Embodiment 3 | 99.5 |
| Embodiment 4 | 99.3 |
| Embodiment 5 | 99.6 |
| Embodiment 6 | 99.9 |
| Comparative example 1 | 98.7 |
| Comparative example 2 | 4 |
Note：Finish conservation rate is lower, and powder phenomenon-tion caused by illustrating material aging is more serious.
Claims (9)
1. a kind of anti-aging PPR composite plastic pipes, including tube body, it is characterised in that：The tube body includes interior tube layer（1）And outer tube
Layer（2）, said inner tube layer（1）With the external tube layer（2）Between sandwich establishment（3）, interior tube layer（1）And external tube layer（2）Material
It is PPR, interlayer（3）Middle filling microcapsules, the preparation method of the microcapsules are as follows：
, aluminium powder pretreatment：Ball aluminum powder is scattered in epoxidized soybean oil, then Freezing smashing, its grain size is made to be less than
200nm；
, sprayed deposit：Capsule material resin is dissolved in solvent, ensures a concentration of 20~40wt% of capsule material resin solution, is then added
Enter by stepPretreated aluminium powder, it is 20~30wt% to make its solid content, and after stirring 30~60min, spray drying obtains
Wrap up the microcapsules of aluminium powder.
2. anti-aging PPR composite plastic pipes according to claim 1, it is characterised in that：The interlayer（3）Thickness be 1
~5mm；It is preferred that the interlayer（3）Thickness be 3mm.
3. anti-aging PPR composite plastic pipes according to claim 1, it is characterised in that：StepIn, ball aluminum powder and ring
The weight ratio of oxygen soybean oil is 1~5:1.
4. anti-aging PPR composite plastic pipes according to claim 1, it is characterised in that：StepIn, the capsule material resin
For Arabic gum, maltodextrin or gelatin；The solvent is water.
5. anti-aging PPR composite plastic pipes according to claim 1, it is characterised in that：StepIn, after pretreatment is added
Aluminium powder before, be additionally added emulsifier, the addition of emulsifier is the 1~5% of capsule material weight resin.
6. anti-aging PPR composite plastic pipes according to claim 5, it is characterised in that：The emulsifier is polyacrylic acid
Sodium, polyacrylamide or lignosulfonates.
7. anti-aging PPR composite plastic pipes according to claim 1, it is characterised in that：StepIn, capsule material resin solution
A concentration of 30wt%, pretreated aluminium powder is then added, make its solid content be 28wt%.
8. the preparation method of the anti-aging PPR composite plastic pipes of claim 1~7 any one of them, which is characterized in that including such as
Lower step：
A, the preparation of microcapsules：Micro- glue is prepared according to the preparation method of claim 1~7 any one of them microcapsules
Capsule；
B, the preparation of compound PPR pipe：It squeezes out to obtain the PPR pipe of two different-diameters using atactic copolymerized polypropene, and will be respectively
As interior tube layer（1）And external tube layer（2）, combine and obtain with interlayer（3）Compound PPR pipe；
C, it fills：Microcapsules are filled into the interlayer of compound PPR pipe（3）In, obtain anti-aging PPR composite plastic pipes.
9. the preparation method of anti-aging PPR composite plastic pipes according to claim 8, it is characterised in that：In b step, institute
The specific method for stating combination is：The small PPR pipe of diameter is put into the big PPR pipe of diameter, and two PPR pipe cross sections of guarantee
The center of circle is in same position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121599.2A CN108386623A (en) | 2018-02-07 | 2018-02-07 | A kind of anti-aging PPR composite plastic pipes and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121599.2A CN108386623A (en) | 2018-02-07 | 2018-02-07 | A kind of anti-aging PPR composite plastic pipes and preparation method |
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Family
ID=63074337
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694136A (en) * | 2018-12-29 | 2019-04-30 | 苏州凯虹高分子科技有限公司 | A kind of scale inhibition pipe and its production technology |
-
2018
- 2018-02-07 CN CN201810121599.2A patent/CN108386623A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694136A (en) * | 2018-12-29 | 2019-04-30 | 苏州凯虹高分子科技有限公司 | A kind of scale inhibition pipe and its production technology |
| CN109694136B (en) * | 2018-12-29 | 2022-05-10 | 苏州凯虹高分子科技有限公司 | Scale inhibition pipe and production process thereof |
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Application publication date: 20180810 |