CN103240827A - Manufacturing method of nanometer-based polyurethane glass fiber reinforced plastic composite tubes - Google Patents
Manufacturing method of nanometer-based polyurethane glass fiber reinforced plastic composite tubes Download PDFInfo
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- CN103240827A CN103240827A CN2013101445351A CN201310144535A CN103240827A CN 103240827 A CN103240827 A CN 103240827A CN 2013101445351 A CN2013101445351 A CN 2013101445351A CN 201310144535 A CN201310144535 A CN 201310144535A CN 103240827 A CN103240827 A CN 103240827A
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Abstract
The invention provides a manufacturing method of nanometer-based polyurethane glass fiber reinforced plastic composite tubes. The manufacturing method comprises the following steps of: firstly producing glass fiber reinforced plastic tubes according to the requirement, carrying out frosting treatment on the inner walls of the glass fiber reinforced plastic tubes, uniformly spreading an adhesive on the inner walls of the glass fiber reinforced plastic tubes, after air drying, uniformly compounding mixed nanometer-based polyurethane prepolymer on the inner walls of the glass fiber reinforced plastic tubes through a centrifugal machine, then entering a vulcanization bin to carry out vulcanization treatment, drying and sizing at about 100 DEG C to prepare the nanometer-based polyurethane glass fiber reinforced plastic composite tubes. The nanometer-based polyurethane glass fiber reinforced plastic composite tubes have a weight advantage; taking a steel tube with the diameter of 133, each meter of steel tube is 24.7kg in weight, and yet, each meter of glass fiber reinforced plastic tube with the same thickness and diameter is only 6.6kg in weight. Simultaneously, the nanometer-based polyurethane glass fiber reinforced plastic composite tubes have a quality advantage, as the expansion coefficient of the polyurethane is closer to the expansion coefficient of the glass fiber reinforced plastic tube than the expansion coefficient of the steel tube, the contraction ratio is correspondingly reduced, so that the phenomenon that wearing layers inside the products fracture is avoided under the condition of temperature changes; and due to addition of nanometer materials, the wear-resisting property of the polyurethane is improved.
Description
Technical field
The present invention relates to the preparation method that a kind of polyurethane glass steel pipe is produced, relate in particular to a kind of production method of nano based polyurethane glass steel pipe.
Background technology
The installation work condition environment at the tail-mineral pipeline scene in a lot of mines is relatively poor, in the early stage of construction, there is not the road, car also can't reach the scene, pipeline is much all with manually carrying on, resemble ceramic composite pipe, composite bimetal pipe, glass-ceramic tubre etc. because Unit Weight is too heavy, pipe can't be transported to the job site.Because the particularity of polyurethane material, pipeline in the mine power system has use more, traditional polyurethane composite pipe, all be adopt at the inwall composite polyurethane material of 20# steel pipe, when because the weight of steel pipe is heavier relatively, add the particularity of this product technology, must be that two ends are flanged (FLGD), so single length also is affected, increased the weight of the weight of pipeline to a certain extent, also influenced the comfort level of site operation.
Because former polyurethane composite pipe is that employing steel pipe and polyurethane material are compound, the coefficient of expansion of two kinds of materials differs bigger, and when temperature raise or reduces, the ratio of its contraction was difficult to synchronous, inner-wall material influence to pipeline is just bigger, has directly influenced the service life of product.
Summary of the invention
Purpose of the present inventionBe at the problem of above prior art existence and the needs in market, a kind of preparation method of nano based polyurethane glass steel pipe is provided.
Purpose of the present inventionBe achieved through the following technical solutions, the preparation method of nano based polyurethane glass steel pipe may further comprise the steps:
First, get internal diameter and the satisfactory glass reinforced plastic pipe of wall thickness ready according to design alternative, the concentricity of guaranteeing glass reinforced plastic pipe will meet standard, put the flange that equates with pipeline pressure at the glass reinforced plastic pipe two ends then, flange is carried out at the GRP pipe two ends, GRP pipe end behind the flange covers on the flange, and glass reinforced plastic pipe is concentric with flange;
The second, the glass reinforced plastic pipe inwall is carried out frosted and handle, the glass reinforced plastic pipe coated inner wall polyurethane adhesive after the processing, adhesive coating is even, carries out air-dry then;
Three, the batching of polyurethane material and mixing, earlier slowly pour into expoxy propane copolyether polyethers in the reactor, start agitator and begin heat temperature raising, the toluene diisocyanate component added an amount of nano based material again and add in the reactor, stir then and heat up, after stirring, add vulcanizing agent again, stir again and heat, make the nano based base polyurethane prepolymer for use as; The ratio of expoxy propane copolyether polyethers and toluene diisocyanate is 3:1;
Four, casting, with the glass reinforced plastic pipe of the carrying out coating centrifuge of packing into, the flange at glass reinforced plastic pipe two ends is fixed on the centrifuge, centrifuge begins to rotate and be heated to certain temperature, nano based base polyurethane prepolymer for use as with weighing and mixing injects glass reinforced plastic pipe rapidly from the two ends sprue, treats that the nano based base polyurethane prepolymer for use as is in inner-walls of duct after the natural level, the rotation of startup centrifuge is carried out compound, and temperature should remain on 95 ℃-110 ℃ in the pipeline therebetween.
Five, solidify, compound good pipeline is entered the sulfuration storehouse carry out vulcanizing treatment, under 95 ℃-110 ℃ temperature, carry out drying and shaping.
Selection science of the present invention, technology advanced person has adopted the lighter glass reinforced plastic pipe of proportion to manage as mother, having weight advantage, is example with diameter 133 steel pipes, and the weight that diameter 133 steel pipes of condition of equivalent thickness are every meter is 24.7Kg, and the weight of glass reinforced plastic pipe has only 6.6Kg, in light weight nearly 1/4th.Have quality-advantage simultaneously, because polyurethane is more more approaching than the coefficient of expansion of polyurethane and steel pipe with glass reinforced plastic pipe, shrinkage ratio is corresponding the minimizing just, makes this product under variation of temperature, can not produce the phenomenon of rupture of inner wearing layer.Add and added nano material, strengthened the anti-wear performance of polyurethane.
The concrete advantage that the present invention produces preparation nano based polyurethane glass steel pipe also has:
First, because polyurethane rubber is a kind of asynthetic rubber, its performance is between rubber and plastics, have high strength, high-mechanic load, high anti-tearing strength and under high rigidity, still have high resiliency, its anti-wear performance is 5 ~ 8 times of natural rubber, is 25.7 times of mild steel, but also has characteristics such as good corrosion-resistant, low temperature resistant, ageing-resistant, oil resistant organic solvent-resistant, after the organic combination of fiberglass, make the scope of its use more extensive.
The second, adopted the lighter glass reinforced plastic pipe of proportion to manage as mother, add the intensity of glass reinforced plastic pipe self very near steel pipe, solved pipeline heavier problem relatively.
The 3rd and since the coefficient of expansion of glass reinforced plastic pipe than the coefficient of expansion of steel pipe more near the coefficient of expansion of polyurethane, with respect to steel pipe, the advantage of glass reinforced plastic pipe is just more obvious.
The 4th, because its deadweight is lighter, as long as the production environment permission, its single length also can increase, thereby has reduced the quantity of flange, has reduced use cost.
The specific embodiment
At first glass reinforced plastic pipe is produced as requested, inwall at glass reinforced plastic pipe carries out the frosted processing, adhesive is coated in uniformly the inwall of glass reinforced plastic pipe, treat air-dry after, the nano based polyurethane that modulates is given aggressiveness, be compounded in uniformly by centrifuge on the inwall of glass reinforced plastic pipe, enter the sulfuration storehouse then and carry out vulcanizing treatment, under the temperature about 100 ℃, carry out drying and shaping, make nano based polyurethane glass steel pipe.
The preparation method of nano based polyurethane glass steel pipe, concrete steps are:
First, internal diameter and the wall thickness of the glass reinforced plastic pipe of selecting according to requirement of client, the concentricity of guaranteeing glass reinforced plastic pipe will meet standard, put the flange that equates with pipeline pressure then, GRP pipe is carried out flange, further check the concentricity of pipeline behind the flange, could guarantee that like this thickness of composite bed can be even.
The second, inwall carries out the frosted processing, begins the polyurethane coating adhesive after the cleaning, guarantee that adhesive coating is even, carries out air-dry then.
Three, the batching of polyurethane material and mixing, earlier slowly pour into expoxy propane copolyether polyethers in the reactor, start agitator and begin heat temperature raising, the toluene diisocyanate component added an amount of nano based material again and add in the reactor, stir then and heat up, after stirring, add vulcanizing agent again, stir again and heat, make the nano based base polyurethane prepolymer for use as; The ratio of expoxy propane copolyether polyethers and toluene diisocyanate is 3:1.
Four, casting, with the glass reinforced plastic pipe of the carrying out coating centrifuge of packing into, the flange at glass reinforced plastic pipe two ends is fixed on the centrifuge, centrifuge begins to rotate and be heated to certain temperature, the polyurethane of weighing and mix is given aggressiveness, inject glass reinforced plastic pipe rapidly from the two ends sprue, treat that it gives aggressiveness in inner-walls of duct after the natural level, the rotation of startup centrifuge is carried out compound, and temperature should remain on about 100 ℃ in the pipeline therebetween.
Five, solidify, compound good pipeline is entered the sulfuration storehouse carry out vulcanizing treatment, under the temperature about 100 ℃, carry out drying and shaping.
Claims (1)
1. the preparation method of nano based polyurethane glass steel pipe may further comprise the steps:
First, get internal diameter and the satisfactory glass reinforced plastic pipe of wall thickness ready according to design alternative, the concentricity of guaranteeing glass reinforced plastic pipe will meet standard, put the flange that equates with pipeline pressure at the glass reinforced plastic pipe two ends then, flange is carried out at the GRP pipe two ends, GRP pipe end behind the flange covers on the flange, and glass reinforced plastic pipe is concentric with flange;
The second, the glass reinforced plastic pipe inwall is carried out frosted and handle, the glass reinforced plastic pipe coated inner wall polyurethane adhesive after the processing, adhesive coating is even, carries out air-dry then;
Three, the batching of polyurethane material and mixing, earlier slowly pour into expoxy propane copolyether polyethers in the reactor, start agitator and begin heat temperature raising, the toluene diisocyanate component added an amount of nano based material again and add in the reactor, stir then and heat up, after stirring, add vulcanizing agent again, stir again and heat, make the nano based base polyurethane prepolymer for use as; The ratio of expoxy propane copolyether polyethers and toluene diisocyanate is 3:1;
Four, casting, with the glass reinforced plastic pipe of the carrying out coating centrifuge of packing into, the flange at glass reinforced plastic pipe two ends is fixed on the centrifuge, centrifuge begins to rotate and be heated to certain temperature, nano based base polyurethane prepolymer for use as with weighing and mixing injects glass reinforced plastic pipe rapidly from the two ends sprue, treats that the nano based base polyurethane prepolymer for use as is in inner-walls of duct after the natural level, the rotation of startup centrifuge is carried out compound, and temperature should remain on 95 ℃-110 ℃ in the pipeline therebetween;
Five, solidify, compound good pipeline is entered the sulfuration storehouse carry out vulcanizing treatment, under 95 ℃-110 ℃ temperature, carry out drying and shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101445351A CN103240827A (en) | 2013-04-24 | 2013-04-24 | Manufacturing method of nanometer-based polyurethane glass fiber reinforced plastic composite tubes |
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| CN2013101445351A CN103240827A (en) | 2013-04-24 | 2013-04-24 | Manufacturing method of nanometer-based polyurethane glass fiber reinforced plastic composite tubes |
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| CN103240827A true CN103240827A (en) | 2013-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044274A (en) * | 2014-05-16 | 2014-09-17 | 连云港中复连众复合材料集团有限公司 | Preparation method for wear-resistant corrosion-resistant composite conveying pipeline with high bonding strength |
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|---|---|---|---|---|
| CN1200324A (en) * | 1997-05-28 | 1998-12-02 | 王剑秋 | Process for mfg. composite tube or pipe |
| CN1280265A (en) * | 1999-07-09 | 2001-01-17 | 上海电力学院 | Polyurethane and glass fibre reinforced plastic composite pipe |
| EP1136238A2 (en) * | 2000-03-17 | 2001-09-26 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and apparatus for manufacturing a workpiece from fibre reinforced material |
| JP2005131931A (en) * | 2003-10-30 | 2005-05-26 | Dainippon Ink & Chem Inc | Fiber-reinforced plastic-recycled composite molding and manufacturing method therefor |
| CN102350758A (en) * | 2011-09-07 | 2012-02-15 | 江苏吉星管业科技有限公司 | Manufacturing method for nanometer modified polyurethane composite tee joint |
-
2013
- 2013-04-24 CN CN2013101445351A patent/CN103240827A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200324A (en) * | 1997-05-28 | 1998-12-02 | 王剑秋 | Process for mfg. composite tube or pipe |
| CN1280265A (en) * | 1999-07-09 | 2001-01-17 | 上海电力学院 | Polyurethane and glass fibre reinforced plastic composite pipe |
| EP1136238A2 (en) * | 2000-03-17 | 2001-09-26 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and apparatus for manufacturing a workpiece from fibre reinforced material |
| JP2005131931A (en) * | 2003-10-30 | 2005-05-26 | Dainippon Ink & Chem Inc | Fiber-reinforced plastic-recycled composite molding and manufacturing method therefor |
| CN102350758A (en) * | 2011-09-07 | 2012-02-15 | 江苏吉星管业科技有限公司 | Manufacturing method for nanometer modified polyurethane composite tee joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044274A (en) * | 2014-05-16 | 2014-09-17 | 连云港中复连众复合材料集团有限公司 | Preparation method for wear-resistant corrosion-resistant composite conveying pipeline with high bonding strength |
| CN104044274B (en) * | 2014-05-16 | 2017-01-04 | 连云港中复连众复合材料集团有限公司 | A kind of preparation method of the wear-and corrosion-resistant composite delivery pipeline of high bond strength |
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Application publication date: 20130814 |