CN107383303A - A kind of track material for piling machine and preparation method thereof - Google Patents
A kind of track material for piling machine and preparation method thereof Download PDFInfo
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- CN107383303A CN107383303A CN201710648537.2A CN201710648537A CN107383303A CN 107383303 A CN107383303 A CN 107383303A CN 201710648537 A CN201710648537 A CN 201710648537A CN 107383303 A CN107383303 A CN 107383303A
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- piling machine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6662—Compounds of group C08G18/42 with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/372—Sulfides, e.g. R-(S)x-R'
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of track material for piling machine and preparation method thereof, the track material includes the raw material of following parts by weight：10~30 parts of isocyanate compound, 25~40 parts of PEPA, 3~8 parts of two mercaptan chain extender, 0.01~0.05 part of catalyst, 0.02~0.08 part of antioxidant, 100~150 parts of organic solvent.Its preparation method includes pre-polymerization, polymerization, moulding by casting.The track material of present invention material based on polyester elastomer, after simple preparation, with excellent pliability, wearability, corrosion resistance, weatherability, mechanical performance such as tearing toughness, compression strength, coiling-resistant excellent strength, be piling machine crawler belt ideal material.
Description
Technical field
The present invention relates to track material technical field, and in particular to a kind of track material and its preparation side for piling machine
Method.
Background technology
Crawler type piling machine uses endless track installation, planetary reducer and four-wheel one to hold in the palm sprocket wheel, Zhi Chong with driving wheel
Wheel, tensioning wheel, Combined type crawler board composition, securely and reliably, arbitrarily it can turn round and walk.The top working rig of crawler type piling machine
Structure uses three fulcrum structures, and mobile in place rapid, safety is stable, and efficiency of construction is high, and quality is good, has mobile side flexibly in place
Just, electrical equipment hydraulic pressure is easy to operate all using centralized Control in addition, reduces the labor intensity of worker.Crawler belt is as crawler type
One important main ground-engaging element of piling machine, the quality of its performance have vital influence on service life.And current state
The cold resistance of interior synthesized piling machine crawler belt, mechanical strength, hydrolytic resistance etc. are all poor, need to be improved.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of track material for piling machine and
Its preparation method, track material material based on polyester elastomer, it is simple prepare after, there is excellent pliability, wear-resisting
Property, corrosion resistance, weatherability, mechanical performance such as tearing toughness, compression strength, coiling-resistant excellent strength, are piling machine crawler belts
Ideal material.
The present invention solves technical problem and adopted the following technical scheme that：
A kind of track material for piling machine, include the raw material of following parts by weight：10~30 parts of isocyanate compound, polyester
25~40 parts of polyalcohol, 3~8 parts of two mercaptan chain extender, 0.01~0.05 part of catalyst, 0.02~0.08 part of antioxidant, have
100~150 parts of solvent.
Preferably, the track material includes the raw material of following parts by weight：20 parts of isocyanate compound, PEPA
32 parts, 5 parts of two mercaptan chain extender, catalyst 0.03,0.05 part of antioxidant, 135 parts of organic solvent.
Preferably, the isocyanates is one or more of mixing of diisocyanate of the molecular weight less than 300g/mol
Thing.
Preferably, the two mercaptan chain extender is one kind in dithioglycol, dimercaptopropane, succinimide mercaptans, ethanthiol
Or a variety of combination.
Preferably, the catalyst is that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/
Mol dihydric alcohol.
Preferably, the antioxidant is butylated hydroxy anisole, dibutyl hydroxy toluene, tert-butylhydroquinone, sulphur
For one or more combinations in dipropionic acid dilauryl.
Preferably, the organic solvent is in dimethylformamide, acetone, toluene, paraxylene, ethyl acetate, acetonitrile
One or more combinations.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 40~60 DEG C
Carry out prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 60~80 DEG C, constantly
Stirring to viscosity reaches 100~300Pas；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, in the true of 0.01~0.05MPa
Deaerate 5~10min under reciprocal of duty cycle, pours into the mould of preheating, film is closed after gel, in 60~80 DEG C of 20~30min of compression molding,
Obtain the track material.
Preferably, the mould is preheated to 60~100 DEG C.
Compared with prior art, the present invention has following beneficial effect：
（1）The track material for piling machine of the present invention, the material based on polyester elastomer, after simple preparation, have excellent
Different pliability, wearability, corrosion resistance, weatherability, mechanical performance such as tearing toughness, compression strength, coiling-resistant intensity are excellent
It is different, it is the ideal material of piling machine crawler belt, improves the operating efficiency of piling owner's running part position, improve crawler type piling machine
Service life.
（2）The composition of the track material for piling machine of the present invention, the casting type polyurethane elastomer being prepared are
Obtained by component reactions such as PEPA, isocyanate compound, catalyst, chain extenders, due in polyurethane elastomer
Two mercaptan chain extenders are introduced in synthesis and substitute traditional diol chain-extension agent, PEPA more preferable with wearability is copolymerized, greatly
The big weatherability for improving polyurethane elastomer, so as to greatly improve the cold-resistant and resistance to elevated temperatures of polyurethane elastomer.
（3）The preparation method of the track material of the present invention, including the step such as pre-polymerization, polymerization, moulding by casting, technique simply may be used
Control easily repeats, and is adapted to large-scale industrial production.
Embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 20kg, PEPA
32kg, two mercaptan chain extender succinimide mercaptans 5kg, catalyst 0.03, antioxidant tert-butylhydroquinone 0.05kg, organic solvent
Dimethylformamide 135kg.Wherein, isocyanates is the one or more of of diisocyanate of the molecular weight less than 300g/mol
Mixture；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 52 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 68 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.03MPa vacuum
Deaerate 8min, pours into and is preheated in 80 DEG C of mould, film is closed after gel, in 66 DEG C of compression molding 25min, obtains the crawler belt material
Material.
Embodiment 2
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 13kg, PEPA
28kg, two mercaptan chain extender dithioglycol 6kg, catalyst 0.02kg, antioxidant tert-butylhydroquinone 0.05kg, You Jirong
Agent toluene 120kg.Wherein, isocyanates is one or more of mixing of diisocyanate of the molecular weight less than 300g/mol
Thing；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 50 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 70 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.03MPa vacuum
Deaerate 7min, pours into and is preheated in 88 DEG C of mould, film is closed after gel, in 70 DEG C of compression molding 24min, obtains the crawler belt material
Material.
Embodiment 3
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 18kg, PEPA
35kg, two mercaptan chain extender dimercaptopropane 6kg, catalyst 0.03kg, antioxidant dilauryl thiodipropionate 0.05kg, have
Solvent paraxylene 126kg.Wherein, isocyanates is the one or more of diisocyanate of the molecular weight less than 300g/mol
Mixture；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 60 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 80 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.02MPa vacuum
Deaerate 10min, pours into and is preheated in 100 DEG C of mould, film is closed after gel, in 80 DEG C of compression molding 28min, obtains the crawler belt
Material.
Embodiment 4
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 25kg, PEPA
36kg, two mercaptan chain extender succinimide mercaptans 4kg, catalyst 0.05kg, antioxidant dibutyl hydroxy toluene 0.08kg, You Jirong
Agent ethyl acetate 140kg.Wherein, isocyanates is that the one or more of of diisocyanate of the molecular weight less than 300g/mol mix
Compound；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 60 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 76 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.05MPa vacuum
Deaerate 10min, pours into and is preheated in 100 DEG C of mould, film is closed after gel, in 80 DEG C of compression molding 30min, obtains the crawler belt
Material.
Embodiment 5
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 24kg, PEPA
40kg, two mercaptan chain extender ethanthiol 7kg, catalyst 0.03kg, antioxidant dilauryl thiodipropionate 0.07kg, have
Solvent paraxylene 135kg.Wherein, isocyanates is the one or more of diisocyanate of the molecular weight less than 300g/mol
Mixture；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 55 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 76 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.04MPa vacuum
Deaerate 7min, pours into and is preheated in 90 DEG C of mould, film is closed after gel, in 78 DEG C of compression molding 24min, obtains the crawler belt material
Material.
Embodiment 6
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 30kg, PEPA
36kg, two mercaptan chain extender dimercaptopropane 5kg, catalyst 0.03kg, antioxidant butylated hydroxy anisole 0.08kg, You Jirong
Agent acetonitrile 146kg.Wherein, isocyanates is one or more of mixing of diisocyanate of the molecular weight less than 300g/mol
Thing；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 60 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 80 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.05MPa vacuum
Deaerate 10min, pours into and is preheated in 95 DEG C of mould, film is closed after gel, in 70 DEG C of compression molding 28min, obtains the crawler belt
Material.
Embodiment 7
A kind of track material for piling machine, include the raw material of following weight：Isocyanate compound 25kg, PEPA
38kg, two mercaptan chain extender ethanthiol 7kg, catalyst 0.05kg, antioxidant dibutyl hydroxy toluene 0.08kg, You Jirong
Agent dimethylformamide 150kg.Wherein, isocyanates is the one or more of diisocyanate of the molecular weight less than 300g/mol
Mixture；Catalyst is the dihydric alcohol that single methanol, monoamine or molecular weight of the molecular weight less than 300g/mol are less than 300g/mol.
The preparation method of the above-mentioned track material for piling machine, comprises the following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 60 DEG C of progress
Prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 80 DEG C, be stirred continuously
Reach 100~300Pas to viscosity；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, under 0.05MPa vacuum
Deaerate 10min, pours into and is preheated in 95 DEG C of mould, film is closed after gel, in 70 DEG C of compression molding 28min, obtains the crawler belt
Material.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of track material for piling machine, it is characterised in that include the raw material of following parts by weight：Isocyanate compound
10~30 parts, 25~40 parts of PEPA, 3~8 parts of two mercaptan chain extender, 0.01~0.05 part of catalyst, antioxidant
0.02~0.08 part, 100~150 parts of organic solvent.
2. the track material according to claim 1 for piling machine, it is characterised in that the track material includes as follows
The raw material of parts by weight：It is 20 parts of isocyanate compound, 32 parts of PEPA, 5 parts of two mercaptan chain extender, catalyst 0.03, anti-
0.05 part of oxidant, 135 parts of organic solvent.
3. the track material according to claim 1 for piling machine, it is characterised in that the isocyanates is molecular weight
One or more of mixtures of diisocyanate less than 300g/mol.
4. the track material according to claim 1 for piling machine, it is characterised in that the two mercaptan chain extender is second
One or more combinations in two mercaptan, dimercaptopropane, succinimide mercaptans, ethanthiol.
5. the track material according to claim 1 for piling machine, it is characterised in that the catalyst is that molecular weight is small
It is less than 300g/mol dihydric alcohol in 300g/mol single methanol, monoamine or molecular weight.
6. the track material according to claim 1 for piling machine, it is characterised in that the antioxidant is butyl hydroxyl
One or more groups in base anisole, dibutyl hydroxy toluene, tert-butylhydroquinone, dilauryl thiodipropionate
Close.
7. the track material according to claim 1 for piling machine, it is characterised in that the organic solvent is dimethyl
One or more combinations in formamide, acetone, toluene, paraxylene, ethyl acetate, acetonitrile.
8. the preparation method of the track material for piling machine according to claim any one of 1-7, it is characterised in that bag
Include following steps：
（1）Pre-polymerization：PEPA is mixed with isocyanate compound, is slowly added to organic solvent, is warming up to 40~60 DEG C
Carry out prepolymerization reaction；
（2）Polymerization：To step（1）Reaction system in add catalyst, two mercaptan chain extenders, be warming up to 60~80 DEG C, constantly
Stirring to viscosity reaches 100~300Pas；
（3）Moulding by casting：To step（2）Reaction system in add antioxidant terminating reaction, in the true of 0.01~0.05MPa
Deaerate 5~10min under reciprocal of duty cycle, pours into the mould of preheating, film is closed after gel, in 60~80 DEG C of 20~30min of compression molding,
Obtain the track material.
9. the preparation method of the track material according to claim 8 for piling machine, it is characterised in that the mould is pre-
Heat is to 60~100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648537.2A CN107383303A (en) | 2017-08-01 | 2017-08-01 | A kind of track material for piling machine and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710648537.2A CN107383303A (en) | 2017-08-01 | 2017-08-01 | A kind of track material for piling machine and preparation method thereof |
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| CN107383303A true CN107383303A (en) | 2017-11-24 |
Family
ID=60343345
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| CN201710648537.2A Withdrawn CN107383303A (en) | 2017-08-01 | 2017-08-01 | A kind of track material for piling machine and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108312584A (en) * | 2018-02-28 | 2018-07-24 | 广州创耐工业皮带有限公司 | A kind of production method of casting type conveyer belt |
| CN109942773A (en) * | 2019-03-18 | 2019-06-28 | 四川大学 | A kind of selfreparing polyurethane and preparation method thereof of the key of thiourethane containing dynamic |
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| CN105131248A (en) * | 2015-09-08 | 2015-12-09 | 沈阳化工大学 | High-temperature-resistant robot crawler and preparation method thereof |
| CN105175680A (en) * | 2015-09-07 | 2015-12-23 | 沈阳化工大学 | High cold resistance robot caterpillar track and preparation method of polyurethane material of high cold resistance robot caterpillar track |
| CN105238011A (en) * | 2015-09-09 | 2016-01-13 | 沈阳化工大学 | Flame-retarding polyurethane elastomer robot track and preparation method of same |
| CN106589279A (en) * | 2017-01-16 | 2017-04-26 | 东莞市沙田鸿驿鞋材厂 | Production method of graphene polyurethane agricultural machinery caterpillar track |
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2017
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| CN105175680A (en) * | 2015-09-07 | 2015-12-23 | 沈阳化工大学 | High cold resistance robot caterpillar track and preparation method of polyurethane material of high cold resistance robot caterpillar track |
| CN105131248A (en) * | 2015-09-08 | 2015-12-09 | 沈阳化工大学 | High-temperature-resistant robot crawler and preparation method thereof |
| CN105238011A (en) * | 2015-09-09 | 2016-01-13 | 沈阳化工大学 | Flame-retarding polyurethane elastomer robot track and preparation method of same |
| CN106589279A (en) * | 2017-01-16 | 2017-04-26 | 东莞市沙田鸿驿鞋材厂 | Production method of graphene polyurethane agricultural machinery caterpillar track |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312584A (en) * | 2018-02-28 | 2018-07-24 | 广州创耐工业皮带有限公司 | A kind of production method of casting type conveyer belt |
| CN109942773A (en) * | 2019-03-18 | 2019-06-28 | 四川大学 | A kind of selfreparing polyurethane and preparation method thereof of the key of thiourethane containing dynamic |
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Application publication date: 20171124 |