CN103254478B - High strength-high friction composite material for deep water pipelaying tensioner friction block and preparation method thereof - Google Patents
High strength-high friction composite material for deep water pipelaying tensioner friction block and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a high strength-high friction composite material for a deep water pipelaying tensioner friction block and a preparation method thereof. The high strength-high friction composite material is made of nitrile rubber, modified resin, mineral fillers and functional materials through modification and compounding and is prepared from the following raw materials in parts by weight: 35-43 parts of nitrile rubber, 20-40 parts of cashew oil modified resin, 5-15 parts of barite, 4-10 parts of chromite, 2-6 parts of zirconite, 5-10 parts of antimony sulfide, 5-15 parts of carbon fibers and 10-20 parts of glass fibers. The single friction block made from the composite material can achieve the tensioning force of 13.6 tons and the friction coefficient of 0.45 under 30-ton positive pressure applied by a tensioner, thereby meeting the requirement for usage under the condition of complex working condition. The high strength-high friction composite material disclosed by the invention has the advantages of simple preparation process, safety and nontoxicity in used materials without causing environment pollution and comprehensive property superior to that of domestic and overseas similar products, is especially suitable for making the deep water pipelaying tensioner friction block and has great social benefit and economic benefit.
Description
Technical field
The present invention relates to the high strength that a kind of deep water pipe laying tensioner frictional resistance piece is used
-high friction resistance composite material and preparation method thereof.
Background technology
Submerged pipeline is the important component part that deep water hydrocarbon field Development Engineering is built, and pipeline layer is unique heavy construction equipment that submarine pipeline is laid.Stretcher is one of topmost equipment on pipeline layer, is to clamp weld and through the pipeline of coating protection and control under it and put into extra large specific equipment, require it can realize permanent tension control.And frictional resistance piece (being commonly called as cushion block) just on stretcher directly and the parts of tube contacts; its effect is that the snap-in force on crawler belt is evenly distributed on pipe; produce larger friction resistance, to clamp pipe or to drag pipeline, and avoid tube surface protective layer physical abuse.Meanwhile, marine pipe laying barge is standing the effect of wind, wave, tide at any time, and it is upper and lower, the irregular concussion of left and right can cause the irregular, inhomogeneous stressed of pipeline and clamping device (frictional resistance piece), and this just requires frictional resistance piece to have very good serviceability.
Deep water pipe laying tensioner frictional resistance piece need meet the performance of following 4 aspects:
1) high strength
When stretcher is in running order, every frictional resistance piece approximately bears the operating pressure of 30 tons, and frictional resistance piece and pipeline be in relative movement state, and this just requires frictional resistance piece to have high resistance to compression and shear strength.
2) the high coefficient of friction resistance
Because marine pipe laying barge is standing the effect of wind, wave, tide at any time, it is upper and lower, the irregular concussion of left and right can cause the irregular, inhomogeneous stressed of pipeline and clamping device (frictional resistance piece).Therefore, frictional resistance piece and pipe surface have the key that high frictional resistance (friction) coefficient is the effective work of assurance stretcher and safe construction.If the coefficient of friction resistance is not enough or it is larger to change, once cause pipeline slippage and cause work safety accident, its financial loss is difficult to the appraisal.
3) suitable hardness
Because frictional resistance piece directly contacts with pipeline and both are in relative movement state.Frictional resistance piece hardness is excessive, can pipeline and protective layer generation thereof firmly be weighed wounded or be scratched, and even causes piping failure; Hardness is too small, and the abrasion loss of equipment frictional resistance piece in service will increase, thereby causes frictional resistance piece life cycle to shorten, and not only increases use cost, and frequently changing frictional resistance piece also can affect construction speed, reduces production efficiency.
4) suitable plastic deformation ability and elasticity
Suitable plastic deformation ability and elasticity are to prevent restorable basis after frictional resistance piece generation brittle rupture and viscous deformation.Plastic deformation ability is too poor, and frictional resistance piece is easy to, when suddenly stressed or stress distribution is inhomogeneous, brittle fracture occurs, and jeopardizes stretcher operating safety; Elasticity is too little, once frictional resistance piece generation stress deformation, it cannot recover its original state, thereby affects the goodness of fit that contacts of frictional resistance piece and pipeline, and then reduces the working efficiency of stretcher.Plastic deformation ability and elasticity are too strong, and stretcher is applied to frictional resistance piece upward pressure and is easy to lose or produce larger fluctuation by plastic deformation and changes, thereby reduce the enclasping force of frictional resistance piece to pipeline, easily cause pipeline slippage.
The stretcher frictional resistance piece that deep-sea pipeline layer uses at present mainly relies on import, and its material mainly contains rubber-based and elastic polyurethane base two classes.And the maximum coefficient of friction resistance under 30 tons of positive pressures that single frictional resistance piece applies at stretcher is about 0.12, and maximum tension power is about 3.7 tons.Calculate like this, be applicable to the tensile force that pipelines in deep sea lays and be the stretcher of 500 tons to the maximum, need to approximately 135 frictional resistance pieces being together in series and working simultaneously just can meet the demands.The length that these frictional resistance pieces are together in series is about 34m (calculating by 0.02 m gap between each frictional resistance block length 0.23m, every), make the volume of whole stretcher very huge, not only improved equipment manufacturing cost, also taken space on a large amount of ships, and on existing stretcher, be only provided with 54 frictional resistance piece installation sites, with domestic and international existing frictional resistance piece, cannot meet stretcher operating pressure is the condition of 500 tons at all.Therefore, improve single frictional resistance piece maximum tension power and become the key addressing the above problem.But due to the restriction of the clamping radial loading that can bear by tube wall, the positive pressure that stretcher applies frictional resistance piece can not improve again.Therefore the coefficient of friction resistance that, improves single frictional resistance piece becomes the unique channel that improves single frictional resistance piece tensile force.In recent years, external many enterprises (comprising the world-famous enterprises such as Italian Remacut company, U.S. Westech company, Dutch SAS Gouda company) and domestic lappingout Suo Deng unit have carried out correlative study for this problem, although have made some progress, effect is remarkable not.Therefore, research and develop a kind of novel high-strength-high friction resistance composite material and make frictional resistance piece, not only can effectively alleviate the urgent need of deep water pipeline layer stretcher to high frictional resistance (large tensile force) frictional resistance piece, can promote technological transformation and the upgrading of pipe laying tensioner simultaneously, for the development of domestic and international deep water pipeline layer stretcher industry etc., all there is promoter action.
Summary of the invention
Object of the present invention is exactly to solve the problems referred to above that existing deep water pipe laying tensioner frictional resistance piece exists, provide a kind of and take high molecular polymer as the agent of bonding agent-softening agent-tune bullet, the high strength that the mineral material of take is used as increasing the deep water pipe laying tensioner frictional resistance piece of resistance-enhancing-Hardening component
-high friction resistance composite material and preparation method thereof.
High strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece of the present invention is used, is to carry out modification and compounded by paracril, modified resin, mineral filler and functional materials, comprises the raw material of following weight parts:
The cashew nut oil modified resin 20~40 of paracril 35~43
Barite 5~15 chromites 4~10
Zircon 2~6 antimony sulfide 5~10
Carbon fiber 5~15 glass fibre 10~20.
Screening formulation weight part ratio range of the present invention is:
The cashew nut oil modified resin 31~40 of paracril 38~40
Barite 8~12 chromites 6~9
Zircon 4~6 antimony sulfide 6~8
Carbon fiber 8~12 glass fibre 13~17.
Most preferably formulation weight part proportioning of the present invention is:
The cashew nut oil modified resin 35 of paracril 38
Barite 10 chromites 8
Zircon 4 antimony sulfide 7
Carbon fiber 10 glass fibre 15.
Described paracril is with butyronitrile 40, wherein polyacrylonitrile content >=40%.
Resin free phenol≤3% in described cashew nut oil modified resin, moisture≤1%.
The preparation method of high strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece of the present invention is used, is characterized in that comprising the following steps:
1. plasticate the paracril pulling-on piece of plasticating, in the environment of relative humidity 80%~90%, place 20~26 hours;
2. mixingly add 0.5~1 weight part captax, 0.5~1 weight part anti-aging agent, 20~40 weight part carbon blacks mixing paracril after plasticating, mixing evenly after, then add the mixing rear tab of 3~6 weight part sulphur to smash to make I;
3. mineral filler modification adds in agitator kettle by barite, chromite, zircon, antimony sulfide, carbon fiber, glass fibre according to quantity, add 0.5~1.5 weight part properties-correcting agent, under the condition of 105 ℃~120 ℃, heated and stirred, after 5~15 minutes, is taken out and is made II;
4. by being crushed to 200 orders with carefully after cashew nut oil modified alkyd resin and 0.4~1 weight part Zinc Stearate mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 10~21 minutes, add in frictional resistance piece mould, at 140~190 ℃ of temperature, pressure 180kg/cm
2~220 kg/cm
2under condition, moulding 1.5~2.5h, obtains.
Properties-correcting agent used is titanic acid ester or Aluminate.
Paracril oil resistant, good heat resistance used in the present invention, wear resistance is high, and bonding force is strong.Modified resin used is cashew nut oil modified alkyd resin, good toughness, bonding force is strong, they play following effect in matrix material: 1) cohesive action and moulding function: one of high molecular polymer Main Function in matrix material is that the poor mineral filler of cohesiveness is bonded together, give the processability that composite granule is good, after solidifying, produce higher intensity; 2) plasticising and the effect of tune bullet: the plastic deformation ability of high molecular polymer and elasticity are totally better than mineral filler, and they are bearing plasticising and the major function of adjusting bullet in matrix material.
In the present invention, mineral filler used is barite, chromite, zircon, antimony sulfide.Barite used (comprising synthetic barium sulfate) wherein, composition is BaSO
4, hardness: 2.5~3.5, density: 4.3g/cm
3, fusing point: 1580 ℃; Stable friction factor, wears away little; At high temperature, can form stable frictional interface, can prevent surface of friction pair scratch, make surface of friction pair brighter and cleaner, friction noise is low.Chromite used has good low temperature and high temperature increases the effect of rubbing, Cr in chromite
2o
3content should be at 25%~40%, Cr
2o
3content is higher, increases the effect of rubbing better; Particle is thicker, and frictional coefficient is larger.Zircon composition used is ZrSiO
4, hardness: 7~8, density: 4.0~4.9 g/cm
3, fusing point: 2340 ℃; Belong to hard filler, a small amount of interpolation can produce the good increasing effect of rubbing, and the noise producing is low.Antimony sulfide used consists of Sb
2s
3, hardness: 2, density: 4.1~4.6g/cm
3, fusing point: 548 ℃; Belong to the metallic sulfide that fusing point is lower, after melting, play binding agent effect, can reduce organic binder bond consumption; Hardness is lower, can reduce the heat fading of noise and frictional coefficient.These mineral fillers add to play in matrix material and regulate frictional coefficient, gain in strength, regulate hardness, improve elasticity, regulate the effects such as plasticity.
In the present invention, functional materials carbon fiber used and glass fibre have that mechanical strength is high, thermal conductivity is low and the excellent properties such as high temperature resistant, acid and alkali-resistance, wear-resistant, corrosion-resistant, sound-absorbing, own wt be light.Wherein carbon fiber used is a kind of novel material of mechanical property excellence, and its proportion is less than 1/4 of steel, and carbon fiber resin composite material tensile strength all more than 3500Mpa, is generally 7~9 times of steel, and tensile modulus of elasticity is that 230~430Gpa is also higher than steel.Glass fibre density used is 2.4~2.7g/cm
3, fusing point is 680 ℃; Be a kind of ceramic of excellent performance, good insulating, thermotolerance is strong, erosion resistance good, and physical strength is high, and water-absorbent is little, and anticorrosion, moistureproof, heat insulation, sound insulation, damping performance are high, and its maximum feature is that tensile strength is large.Tensile strength is 6.3~6.9 g/d under standard state, moisture state 5.4~5.8 g/d.
In the present invention, require moisture≤1% of mineral filler and functional materials, 500 ℃ of fusing point >.
With the frictional resistance piece that high strength of the present invention-high friction resistance composite material is made, taking full advantage of the different characteristic of high molecular polymer carries out composite modified, be aided with and strengthen and the increasing material that rubs, indeformable under 30 tons of positive pressures, do not break, tensile force reaches 13.6 tons, and the coefficient of friction resistance reaches 0.45, can meet the service requirements under complex working conditions, the frictional resistance piece over-all properties making is better than the product using at present both at home and abroad.
The present invention's raw material used is all commercially available industrial raw material, is convenient to buying and tissue production, and various advantages of nontoxic raw materials, and the material without country's restriction or forbidding, can not cause environmental pollution; Preparation technology of the present invention is simple, and the equipment adopting is all standard equipment, can reduce investment outlay, and save energy; Product cost of the present invention remains basically stable compared with similar products, has great Social benefit and economic benefit.
Embodiment
Embodiment 1
1. plasticate and get 35kg butyronitrile 40 pulling-on piece of plasticating, in the environment of relative humidity 90%, place 20 hours;
2. mixingly add captax 1kg, anti-aging agent 0.5kg, carbon black 40kg mixing butyronitrile after plasticating 40, mixing evenly after, then add the mixing rear tab of sulphur 3kg to smash to make I;
3. barite 5kg, chromite 10kg, zircon 6kg, antimony sulfide 5kg are got in mineral filler modification, carbon fiber 15kg, glass fibre 10kg add in the agitator kettle with heating unit, add titanic acid ester 0.5kg, under the condition of 105 ℃, heated and stirred, after 10 minutes, is taken out and is made II;
4. by pulverizing after cashew nut oil modified alkyd resin 40kg and Zinc Stearate 0.4kg mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 21 minutes, add in frictional resistance piece mould, 170 ℃ of temperature, pressure 220 kg/cm
2, moulding 1.5h, makes deep water pipe laying tensioner frictional resistance piece.
Embodiment 2
1. plasticate and get 43kg butyronitrile 40 pulling-on piece of plasticating, in the environment of relative humidity 80%, place 26 hours;
2. mixingly add captax 0.5kg, anti-aging agent 1kg, carbon black 20kg mixing butyronitrile after plasticating 40, mixing evenly after, then add the mixing rear tab of sulphur 6kg to smash to make I;
3. barite 15kg, chromite 4kg, zircon 2kg, antimony sulfide 10kg are got in mineral filler modification, carbon fiber 5kg, glass fibre 20kg add in the agitator kettle with heating unit, add Aluminate 1.5kg, under the condition of 120 ℃, heated and stirred, after 15 minutes, is taken out and is made II;
4. by pulverizing after cashew nut oil modified alkyd resin 20kg and Zinc Stearate 0.7kg mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 10 minutes, add in frictional resistance piece mould, at 190 ℃ of temperature, pressure 180kg/cm
2, moulding 2.5h, makes deep water pipe laying tensioner frictional resistance piece.
Embodiment 3
1. plasticate and get 40kg butyronitrile 40 pulling-on piece of plasticating, in the environment of relative humidity 85%, place 23 hours;
2. mixingly add captax 0.75kg, anti-aging agent 0.75kg, carbon black 30kg mixing butyronitrile after plasticating 40, mixing evenly after, then add the mixing rear tab of sulphur 4kg to smash to make I;
3. barite 8kg, chromite 9kg, zircon 4kg, antimony sulfide 8kg are got in mineral filler modification, carbon fiber 12kg, glass fibre 13kg add in the agitator kettle with heating unit, add titanic acid ester 1kg, under the condition of 110 ℃, heated and stirred, after 10 minutes, is taken out and is made II;
4. by pulverizing after cashew nut oil modified alkyd resin 31kg and Zinc Stearate 1kg mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 15 minutes, add in frictional resistance piece mould, 140 ℃ of temperature, pressure 200 kg/cm
2, moulding 2h, makes deep water pipe laying tensioner frictional resistance piece.
Embodiment 4
1. plasticate and get 38kg butyronitrile 40 pulling-on piece of plasticating, in the environment of relative humidity 87%, place 25 hours;
2. mixingly add captax 0.5kg, anti-aging agent 0.5kg, carbon black 25kg mixing butyronitrile after plasticating 40, mixing evenly after, then add the mixing rear tab of sulphur 5kg to smash to make I;
3. barite 12kg, chromite 6kg, zircon 6kg, antimony sulfide 6kg are got in mineral filler modification, carbon fiber 8kg, glass fibre 17kg add in the agitator kettle with heating unit, add titanic acid ester 0.8kg, under the condition of 115 ℃, heated and stirred, after 12 minutes, is taken out and is made II;
4. by pulverizing after cashew nut oil modified alkyd resin 40kg and Zinc Stearate 0.8kg mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 18 minutes, add in frictional resistance piece mould, 180 ℃ of temperature, pressure 210 kg/cm
2, moulding 2.3h, makes deep water pipe laying tensioner frictional resistance piece.
Embodiment 5
1. plasticate and get 38kg butyronitrile 40 pulling-on piece of plasticating, in the environment of relative humidity 83%, place 22 hours;
2. mixingly add captax 1kg, anti-aging agent 1kg, carbon black 35kg mixing butyronitrile after plasticating 40, mixing evenly after, then add the mixing rear tab of sulphur 3kg to smash to make I;
3. barite 10kg, chromite 8kg, zircon 4kg, antimony sulfide 7kg are got in mineral filler modification, carbon fiber 10kg, glass fibre 15kg add in the agitator kettle with heating unit, add titanic acid ester 1.2kg, under the condition of 107 ℃, heated and stirred, after 8 minutes, is taken out and is made II;
4. by pulverizing after cashew nut oil modified alkyd resin 35kg and Zinc Stearate 0.5kg mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 17 minutes, add in frictional resistance piece mould, at 160 ℃ of temperature, pressure 190kg/cm
2, moulding 1.8h, makes deep water pipe laying tensioner frictional resistance piece.
The frictional resistance piece that the embodiment of the present invention 5 makes after testing Rockwell hardness is 40, under 30 tons of positive pressures, carries out tensile force test, and its tensile force is 13.6 tons, and the coefficient of friction resistance is 0.45.Illustrate that the frictional resistance piece that the embodiment of the present invention 5 makes is indeformable under high pressure (30 tons of operating pressure) environment, do not break, hardness is moderate, elasticity is suitable, the coefficient of friction resistance is high, bearing capacity is strong, its over-all properties, far away higher than domestic and international product of the same type, meets the working condition requirement of deep water pipe laying tensioner completely.
Through test, the frictional resistance piece making by the embodiment of the present invention 5, need 54 just can meet the stretcher (domestic and international product needed of the same type is 135 at present) that pipelines in deep sea laying tensile force is 500 tons to the maximum completely, saved greatly space on equipment manufacturing cost and ship.Product of the present invention not only can effectively be alleviated the demand of deep water pipeline layer stretcher to high frictional resistance (large tensile force) frictional resistance piece, can promote technological transformation and the upgrading of pipe laying tensioner, the development of domestic and international deep water pipeline layer stretcher industry is had to great promoter action simultaneously.
Claims (6)
1. high strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece is used, is to carry out modification and compounded by paracril, modified resin, mineral filler and functional materials, it is characterized in that comprising the raw material of following weight parts:
The cashew nut oil modified resin 20~40 of paracril 35~43
Barite 5~15 chromites 4~10
Zircon 2~6 antimony sulfide 5~10
Carbon fiber 5~15 glass fibre 10~20;
Its preparation method is:
1. plasticate the paracril pulling-on piece of plasticating, in the environment of relative humidity 80%~90%, place 20~26 hours;
2. mixingly add 0.5~1 weight part captax, 0.5~1 weight part anti-aging agent, 20~40 weight part carbon blacks mixing paracril after plasticating, mixing evenly after, then add the mixing rear tab of 3~6 weight part sulphur to smash to make I;
3. mineral filler modification adds in agitator kettle by barite, chromite, zircon, antimony sulfide, carbon fiber, glass fibre according to quantity, add 0.5~1.5 weight part properties-correcting agent, under the condition of 105 ℃~120 ℃, heated and stirred, after 5~15 minutes, is taken out and is made II;
4. by being crushed to 200 order fine powders after cashew nut oil modified alkyd resin and 0.4~1 weight part Zinic stearas mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 10~21 minutes, add in frictional resistance piece mould, at 140~190 ℃ of temperature, pressure 180kg/cm
2~220 kg/cm
2under condition, moulding 1.5~2.5h, obtains;
Properties-correcting agent used is titanic acid ester or Aluminate.
2. high strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece according to claim 1 is used, is characterized in that comprising the raw material of following weight parts:
The cashew nut oil modified resin 31~40 of paracril 38~40
Barite 8~12 chromites 6~9
Zircon 4~6 antimony sulfide 6~8
Carbon fiber 8~12 glass fibre 13~17.
3. high strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece according to claim 1 is used, is characterized in that comprising the raw material of following weight parts:
The cashew nut oil modified resin 35 of paracril 38
Barite 10 chromites 8
Zircon 4 antimony sulfide 7
Carbon fiber 10 glass fibre 15.
4. high strength-high the friction resistance composite material using according to the deep water pipe laying tensioner frictional resistance piece described in claim 1 or 2 or 3, is characterized in that: described paracril is with butyronitrile 40, wherein polyacrylonitrile content >=40%.
5. high strength-high the friction resistance composite material using according to the deep water pipe laying tensioner frictional resistance piece described in claim 1 or 2 or 3, is characterized in that: resin free phenol≤3% in described cashew nut oil modified resin, moisture≤1%.
6. the preparation method of high strength-high friction resistance composite material that deep water pipe laying tensioner frictional resistance piece claimed in claim 1 is used, is characterized in that comprising the following steps:
1. plasticate the paracril pulling-on piece of plasticating, in the environment of relative humidity 80%~90%, place 20~26 hours;
2. mixingly add 0.5~1 weight part captax, 0.5~1 weight part anti-aging agent, 20~40 weight part carbon blacks mixing paracril after plasticating, mixing evenly after, then add the mixing rear tab of 3~6 weight part sulphur to smash to make I;
3. mineral filler modification adds in agitator kettle by barite, chromite, zircon, antimony sulfide, carbon fiber, glass fibre according to quantity, add 0.5~1.5 weight part properties-correcting agent, under the condition of 105 ℃~120 ℃, heated and stirred, after 5~15 minutes, is taken out and is made II;
4. by being crushed to 200 order fine powders after cashew nut oil modified alkyd resin and 0.4~1 weight part Zinic stearas mix and blend, make III;
5. the I making in above-mentioned steps, II, III are mixed, stir after 10~21 minutes, add in frictional resistance piece mould, at 140~190 ℃ of temperature, pressure 180kg/cm
2~220 kg/cm
2under condition, moulding 1.5~2.5h, obtains;
Properties-correcting agent used is titanic acid ester or Aluminate.
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CN101153083A (en) * | 2006-09-25 | 2008-04-02 | 山西江淮重工有限责任公司 | Hexa-potassium tianate crystal whisker reinforced, non-zillerite, non- metal friction material for industry |
CN101555918A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件(仙桃)有限公司 | High-performance organic fibre brake pad |
CN102965078A (en) * | 2012-11-23 | 2013-03-13 | 山东金麒麟股份有限公司 | Friction material of disc brake pad, disc brake pad and preparation technology of disc brake pad |
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CN101153083A (en) * | 2006-09-25 | 2008-04-02 | 山西江淮重工有限责任公司 | Hexa-potassium tianate crystal whisker reinforced, non-zillerite, non- metal friction material for industry |
CN101555918A (en) * | 2009-01-25 | 2009-10-14 | 瑞阳汽车零部件(仙桃)有限公司 | High-performance organic fibre brake pad |
CN102965078A (en) * | 2012-11-23 | 2013-03-13 | 山东金麒麟股份有限公司 | Friction material of disc brake pad, disc brake pad and preparation technology of disc brake pad |
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