CN107365499A - Low brittle automobile engine hollow tube and preparation method thereof - Google Patents
Low brittle automobile engine hollow tube and preparation method thereof Download PDFInfo
- Publication number
- CN107365499A CN107365499A CN201710770879.1A CN201710770879A CN107365499A CN 107365499 A CN107365499 A CN 107365499A CN 201710770879 A CN201710770879 A CN 201710770879A CN 107365499 A CN107365499 A CN 107365499A
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- preparation
- melting
- automobile engine
- pressure
- hollow tube
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tires In General (AREA)
- Moulding By Coating Moulds (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of low brittle automobile engine hollow tube and preparation method thereof, the preparation method includes：1）Isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2 benzothiazolyl mercaptans, strontium peroxide are subjected to vulcanizing treatment so that modified isoprene rubber is made in enclosed environment；2）Silicon rubber, fluorubber, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3 aminopropyl triethoxysilanes, carbon fiber are mixed, then carry out the first melting；Then modified isoprene rubber is melted so that molten product is made added to progress second in the system of the first melting；3）Molten product is subjected to forming processes so that low brittle automobile engine hollow tube is made；Wherein, in step 1）In, the pressure in vulcanizing treatment is made up of continuous alternate High Voltage section with low pressure section, and the pressure of High Voltage section is 2 4MPa, and the pressure of low pressure section is 0.1 0.5MPa.The low brittle automobile engine hollow tube has excellent cold resistance.
Description
Technical field
The present invention relates to automobile component, in particular it relates to a kind of low brittle automobile engine hollow tube and preparation method thereof.
Background technology
Automobile engine hollow tube is pipe element important in automobile engine, due to the working strength of automobile engine
Greatly, internal temperature is high and hollow tube needs to convey fuel oil, so automobile engine hollow tube is not only required excellent
Mechanical strength, while also need to that there is excellent cold resistant property.Because in northern area, the temperature as little as subzero tens in winter
Degree, easily cause hollow tube brittle in this case and then cause automobile engine normally to start.
The content of the invention
It is an object of the invention to provide a kind of low brittle automobile engine hollow tube and preparation method thereof, the low brittle automobile
Engine hollow tube has excellent cold resistance, while the preparation method has process simple and the advantages of raw material is easy to get.
To achieve these goals, should the invention provides a kind of preparation method of low brittle automobile engine hollow tube
Preparation method includes：
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide in enclosed environment
Middle progress vulcanizing treatment is modified isoprene rubber to be made；
2）By silicon rubber, fluorubber（Makrolon）, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- ammonia third
Ethyl triethoxy silicane alkane, carbon fiber mixing, then carry out the first melting；Then modified isoprene rubber is melted added to first
The second melting is carried out in system so that molten product is made；
3）Molten product is subjected to forming processes so that low brittle automobile engine hollow tube is made；
Wherein, in step 1）In, the pressure in vulcanizing treatment is made up of continuous alternate High Voltage section with low pressure section, High Voltage
The pressure of section is 2-4MPa, and the pressure of low pressure section is 0.1-0.5MPa, and first melting process is forged and hammered into shape simultaneously
The pressure of refining is 6-7Mpa, and the pressure that second melting process is forged and forged simultaneously is 3-5Mpa.
Present invention also offers a kind of preparation method of low brittle automobile engine hollow tube, the low brittle automobile engine
Hollow tube is prepared by above-mentioned preparation method.
In the above-mentioned technical solutions, the present invention is entered by the alternate mode of high pressure to isoprene rubber progress vulcanizing treatment first
And obtain being modified isoprene rubber, then using the modification isoprene rubber as modifying agent to improve obtained low brittle automobile engine
The cold resistant property of hollow tube；The preparation method has process simple and the advantages of raw material is easy to get simultaneously.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of preparation method of low brittle automobile engine hollow tube, the preparation method includes：
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide in enclosed environment
Middle progress vulcanizing treatment is modified isoprene rubber to be made；
2）By silicon rubber, fluorubber（Makrolon）, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- ammonia third
Ethyl triethoxy silicane alkane, carbon fiber mixing, then carry out the first melting；Then modified isoprene rubber is melted added to first
The second melting is carried out in system so that molten product is made；
3）Molten product is subjected to forming processes so that low brittle automobile engine hollow tube is made；
Wherein, in step 1）In, the pressure in vulcanizing treatment is made up of continuous alternate High Voltage section with low pressure section, High Voltage
The pressure of section is 2-4MPa, and the pressure of low pressure section is 0.1-0.5MPa, and first melting process is forged and hammered into shape simultaneously
The pressure of refining is 6-7Mpa, and the pressure that second melting process is forged and forged simultaneously is 3-5Mpa.
Step 1 in the present invention）In, the dosage of each material can select in wide scope, but in order that be made
Automobile engine hollow tube there is more excellent cold resistant property, it is preferable that in step 1）In, isoprene rubber, curing diformazan
Base diphenyl thiuram, 2- benzothiazolyl mercaptans, the weight ratio of strontium peroxide are 1：0.15-0.30：0.01-0.03：0.01-
0.03。
Step 1 in the present invention）In, the condition of vulcanizing treatment can select in wide scope, but in order that system
The automobile engine hollow tube obtained has more excellent cold resistant property, it is preferable that in step 1）In, vulcanizing treatment meets following bar
Part：Curing temperature asks 80-120 DEG C, cure time 5-8h.
Step 1 in the present invention）In, the time of High Voltage section and low pressure section than can be selected in wide scope,
But in order that obtained automobile engine hollow tube has more excellent cold resistant property, it is preferable that in step 1）In, High Voltage
The time ratio of section and low pressure section is 1：2-3.
Step 2 in the present invention）In, the dosage of each material can select in wide scope, but in order that be made
Automobile engine hollow tube there is more excellent cold resistant property, it is preferable that in step 2）In, silicon rubber, fluorubber, nanometer are swollen
Moisten soil, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl triethoxysilanes, carbon fiber, the weight of modified isoprene rubber
Amount is than being 1：0.5-0.9：0.01-0.04：0.02-0.06：0.5-0.7：0.08-0.13：0.1-0.18：0.06-0.10：0.3-
0.7。
Step 2 in the present invention）In, the condition of the first melting can select in wide scope, but in order that system
The automobile engine hollow tube obtained has more excellent cold resistant property, it is preferable that in step 2）In, first melting at least meet with
Lower condition：Melting temperature is 245-255 DEG C, melting time 4-6h.
Step 2 in the present invention）In, the condition of the second melting can select in wide scope, but in order that system
The automobile engine hollow tube obtained has more excellent cold resistant property, it is preferable that in step 2）In, second melting at least meet with
Lower condition：Melting temperature is 225-240 DEG C, melting time 40-60min.
Step 2 in the present invention）In, the mode of forming processes can select in wide scope, but in order that system
The automobile engine hollow tube obtained has more excellent cold resistant property, it is preferable that in step 3）In, forming processes are using injection
Mode is carried out, also, the temperature of injection moulding mould head is 190-210 DEG C.
Present invention also offers a kind of preparation method of low brittle automobile engine hollow tube, the low brittle automobile engine
Hollow tube is prepared by above-mentioned preparation method.
The present invention will be described in detail by way of examples below.
Embodiment 1
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide according to 1：0.2：
0.02：0.02 weight ratio carries out vulcanizing treatment in enclosed environment（Curing temperature asks 100 DEG C, cure time 6h；Pressure by
Continuous alternate High Voltage section forms with low pressure section, and the pressure of High Voltage section is 3MPa, and the pressure of low pressure section is 0.3MPa；
The time ratio of High Voltage section and low pressure section is 1：2.5）So that modified isoprene rubber is made；
2）By silicon rubber, fluorubber, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl-triethoxies
Silane, carbon fiber mixing, then carry out the first melting（Melting temperature is 250 DEG C, melting time 5h, and the pressure forged is
6.5Mpa）；Then modified isoprene rubber is melted added to progress second in the system of the first melting（Melting temperature is 230 DEG C,
Melting time is 50min, and the pressure forged is 4Mpa）So that molten product is made（Silicon rubber, fluorubber, nano-bentonite, hydroxyl first
Base cellulose, paraffin, zinc stearate, 3- aminopropyl triethoxysilanes, carbon fiber, the weight ratio of modified isoprene rubber are 1：
0.7：0.03：0.04：0.6：0.10：0.15：0.08：0.5）；
3）Molten product is molded（The temperature of injection moulding mould head is 200 DEG C）So that low brittle automobile engine hollow tube is made
A1。
Embodiment 2
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide according to 1：
0.15：0.01：0.01 weight ratio carries out vulcanizing treatment in enclosed environment（Curing temperature asks 80 DEG C, cure time 5h；Pressure
It is made up of continuous alternate High Voltage section with low pressure section by force, the pressure of High Voltage section is 2MPa, and the pressure of low pressure section is
0.1MPa；The time ratio of High Voltage section and low pressure section is 1：2）So that modified isoprene rubber is made；
2）By silicon rubber, fluorubber, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl-triethoxies
Silane, carbon fiber mixing, then carry out the first melting（Melting temperature is 245 DEG C, melting time 4h, and the pressure forged is
6Mpa）；Then modified isoprene rubber is melted added to progress second in the system of the first melting（Melting temperature is 225 DEG C, is melted
It is 40min to melt the time, and the pressure forged is 3Mpa）So that molten product is made（Silicon rubber, fluorubber, nano-bentonite, methylol
Cellulose, paraffin, zinc stearate, 3- aminopropyl triethoxysilanes, carbon fiber, the weight ratio of modified isoprene rubber are 1：0.5：
0.01：0.02：0.5：0.08：0.1：0.06：0.3）；
3）Molten product is molded（The temperature of injection moulding mould head is 190 DEG C）So that low brittle automobile engine hollow tube is made
A2。
Embodiment 3
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide according to 1：
0.30：0.03：0.03 weight ratio carries out vulcanizing treatment in enclosed environment（Curing temperature asks 120 DEG C, cure time 8h；
Pressure is made up of continuous alternate High Voltage section with low pressure section, and the pressure of High Voltage section is 4MPa, and the pressure of low pressure section is
0.5MPa；The time ratio of High Voltage section and low pressure section is 1：3）So that modified isoprene rubber is made；
2）By silicon rubber, fluorubber, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl-triethoxies
Silane, carbon fiber mixing, then carry out the first melting（Melting temperature is 255 DEG C, melting time 6h, and the pressure forged is
7Mpa）；Then modified isoprene rubber is melted added to progress second in the system of the first melting（Melting temperature is 240 DEG C, is melted
It is 60min to melt the time, and the pressure forged is 5Mpa）So that molten product is made（Silicon rubber, fluorubber, nano-bentonite, methylol
Cellulose, paraffin, zinc stearate, 3- aminopropyl triethoxysilanes, carbon fiber, the weight ratio of modified isoprene rubber are 1：0.9：
0.04：0.06：0.7：0.13：0.18：0.10：0.7）；
3）Molten product is molded（The temperature of injection moulding mould head is 210 DEG C）So that low brittle automobile engine hollow tube is made
A3。
Comparative example 1
Automobile engine hollow tube B1 is prepared Following the procedure of Example 1, unlike, step 1）In pressure be High Voltage
Section.
Comparative example 2
Automobile engine hollow tube B2 is prepared Following the procedure of Example 1, unlike, step 1）In pressure be low pressure
Section.
Comparative example 3
Automobile engine hollow tube B3 is prepared Following the procedure of Example 1, unlike, step 2）In first melting do not carry out
Forge.
Comparative example 4
Automobile engine hollow tube B4 is prepared Following the procedure of Example 1, unlike, step 2）In second melting do not carry out
Forge.
Detect example 1
The brittle temperature of above-mentioned automobile engine hollow tube is detected according to GB/T 5470-2008, concrete outcome is shown in Table 1.
Table 1
Wherein, brittle temperature it is lower show automobile engine hollow tube winter resistance it is more excellent.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (9)
1. a kind of preparation method of low brittle automobile engine hollow tube, it is characterised in that the preparation method includes：
1）By isoprene rubber, DMDPTD dimethyl diphenylthiuram disulfide, 2- benzothiazolyl mercaptans, strontium peroxide in enclosed environment
Middle progress vulcanizing treatment is modified isoprene rubber to be made；
2）By silicon rubber, fluorubber, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl-triethoxies
Silane, carbon fiber mixing, then carry out the first melting；Then the modified isoprene rubber is added to the body of the described first melting
The second melting is carried out in system so that molten product is made；
3）The molten product is subjected to forming processes so that the low brittle automobile engine hollow tube is made；
Wherein, in step 1）In, the pressure in the vulcanizing treatment is made up of continuous alternate High Voltage section with low pressure section, institute
The pressure for stating High Voltage section is 2-4MPa, and the pressure of the low pressure section is 0.1-0.5MPa, and first melting process is simultaneously
The pressure forged and forged is 6-7Mpa, and the pressure that second melting process is forged and forged simultaneously is 3-
5Mpa。
2. preparation method according to claim 1, wherein, in step 1）In, the isoprene rubber, dimethyl disulfide two
Phenyl thiuram, 2- benzothiazolyl mercaptans, the weight ratio of strontium peroxide are 1：0.15-0.30：0.01-0.03：0.01-
0.03。
3. preparation method according to claim 1, wherein, in step 1）In, the vulcanizing treatment meets following condition：Sulphur
Change temperature and ask 80-120 DEG C, cure time 5-8h.
4. preparation method according to claim 1, wherein, in step 1）In, the High Voltage section and low pressure section when
Between compare be 1：2-3.
5. according to the preparation method described in any one in claim 1-4, wherein, in step 2）In, the silicon rubber, fluorine rubber
Glue, nano-bentonite, hydroxymethyl cellulose, paraffin, zinc stearate, 3- aminopropyl triethoxysilanes, carbon fiber, modified isoamyl
The weight ratio of rubber is 1：0.5-0.9：0.01-0.04：0.02-0.06：0.5-0.7：0.08-0.13：0.1-0.18：0.06-
0.10：0.3-0.7.
6. preparation method according to claim 5, wherein, in step 2）In, first melting at least meets following bar
Part：Melting temperature is 245-255 DEG C, melting time 4-6h.
7. preparation method according to claim 5, wherein, in step 2）In, second melting at least meets following bar
Part：Melting temperature is 225-240 DEG C, melting time 40-60min.
8. the preparation method according to claim 6 or 7, wherein, in step 3）In, the forming processes are using the side being molded
Formula is carried out, also, the temperature of injection moulding mould head is 190-210 DEG C.
9. a kind of preparation method of low brittle automobile engine hollow tube, it is characterised in that in the low brittle automobile engine
Blank pipe is prepared by the preparation method described in any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710770879.1A CN107365499A (en) | 2017-08-31 | 2017-08-31 | Low brittle automobile engine hollow tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710770879.1A CN107365499A (en) | 2017-08-31 | 2017-08-31 | Low brittle automobile engine hollow tube and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107365499A true CN107365499A (en) | 2017-11-21 |
Family
ID=60311941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710770879.1A Withdrawn CN107365499A (en) | 2017-08-31 | 2017-08-31 | Low brittle automobile engine hollow tube and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107365499A (en) |
-
2017
- 2017-08-31 CN CN201710770879.1A patent/CN107365499A/en not_active Withdrawn
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Application publication date: 20171121 |
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