CN106674757A - Rubber composition for cleaning molds and processing technique thereof - Google Patents
Rubber composition for cleaning molds and processing technique thereof Download PDFInfo
- Publication number
- CN106674757A CN106674757A CN201610925929.4A CN201610925929A CN106674757A CN 106674757 A CN106674757 A CN 106674757A CN 201610925929 A CN201610925929 A CN 201610925929A CN 106674757 A CN106674757 A CN 106674757A
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- China
- Prior art keywords
- rubber
- agent
- rubber composition
- weight portions
- mold cleaning
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a processing technique of a rubber composition for cleaning molds. The rubber composition comprises ethylene propylene diene monomer rubber, an activator, stearic acid, an anti-aging agent, a reinforcing agent, a whitener, a plasticizer, an internal molding lubricant, triethanolamine, coumarone, a rubber leveler, a vulcanizing agent and an accelerator. The processing technique comprises the following steps: primary rubber mixing, primary standing, secondary vulcanization, secondary standing and the like. The cleaning rubber has the advantages of high saturation level, favorable heat and chemical stability, and low tendency of excessive mixing and excessive vulcanization, can not easily cause aging, deterioration or self-vulcanization, and does not have secondary pollution on molds.
Description
Technical field
The present invention relates to a kind of rubber mold cleaning rubber composition and its processing technique, belong to rubber and chemical industry
Technical field.
Background technology
Mould is contaminated in process of production, often causes sticking to mould, and conventional mold clean substantially has following several ways：
1st, abrasive jet cleaning 2, liquid medicine immersion treatment (pickling, alkali cleaning) 3, ultrasound wave cleaning.Either at abrasive jet cleaning or liquid medicine immersion
Reason is required for dismantling mould and having mould damage, installation mold is also needed to after the completion of cleaning and makes mould be heated to setting temperature
Degree, just can produce.Such cleaning process wastes time and energy, and production efficiency is low.And long-time blasting treatment can damage mould
Tool sealing, affects die size.Whether at this moment everybody will think, if can be without dismantling mould, can be without stopping after cleaning
Produce heating mouldAnswer is affirmative, a kind of rubber mold cleaning rubber composition, such as normal production, sizing material injection mould
Chamber, after sulfuration depanning, the dirt that mold cleaning glue can be taken out of in die cavity.
The content of the invention
The technical problem to be solved in the present invention is：Because conventional mold cleaning mode wastes time and energy, cleaning rear mold needs
Heating, the inferior drawback of low production efficiency, now using a kind of mold cleaning rubber compositionss, can be directly produced 1-3 moulds, after sulfuration depanning
The effect that the dirt on mould reaches cleaning mould is fallen in absorption.
In order to solve above-mentioned technical problem, to the technical scheme is that and should have mobility and autohension according to mold cleaning glue
A kind of rubber mold cleaning rubber composition is provided well, it is characterised in that be made up of following raw material in parts by weight：
Preferably, the activating agent is Zinc Oxide.
Preferably, the rubber homogenizing agent is 40MSF.
Preferably, the brightening agent is titanium dioxide.
Preferably, the inner pattern releasing agent applicable is AT-95.
Preferably, the ethylene propylene diene rubber is Japan EPDM-4050.
Preferably, the age resistor is MB.
Preferably, described reinforcing agent is white carbon 822MP and precipitated calcium carbonate with weight ratio as 1: 1.05~1: 1.67
Ratio mixing mixture.
Preferably, the plasticizer is U.S. SUN paraffin oil 2280.
Preferably, the vulcanizing agent is that Cosan and the tasteless DCP of peroxide are mixed by 1: 8~1: 20 ratio of weight ratio
The mixture of conjunction.
Preferably, described accelerator is altax.
Present invention also offers the processing technique of above-mentioned rubber mold cleaning rubber composition, it is characterised in that include
The following four stage：
(1) one section of refining glue：
The first step, mill roll spacing is adjusted to 0.5-1.5mm, the ethylene propylene diene rubber of required usage amount is put into into mill thin
It is logical 2~3 times, powder is eaten during to knead；
Second step, by rubber and stearic acid, activating agent, age resistor, rubber homogenizing agent, triethanolamine, inner pattern releasing agent applicable, ancient horse
Grand input together in banbury carries out kneading 4-6min, and at 100-120 DEG C, chamber body of mixer adopts band to banburying chamber's temperature control
Heating function；
3rd step, the white carbon for having mixed is put into together with precipitated calcium carbonate and carry out in banbury kneading 2-3min,
, at 120-140 DEG C, chamber body of mixer is using band heating function for banburying chamber's temperature control；
4th step, load weighted plasticizer is added carries out kneading in banbury, the kneading time is 4-6min, and midway is lifted
Floating weight, compresses top bolt after being kept for 10 seconds, sizing material is transposed to mill and carries out thin logical three times, Bao Tong by mixing after terminating
When roll spacing control 0.5-1.5mm, then roll spacing is adjusted to into 2-3mm, each slice twice of left and right cutter；
(2) park for the first time：
By thermostatic chamber is put into through the elastomeric compound of one section of refining glue the storage period is carried out more than 8 hours；
(3) two-stage nitration adds sulfur：
Park one section of material is put in banbury and first carry out the softening of kneading in 20 seconds, then will a kind of cleaning mould of refining
All being poured in banbury with all dispensings needed for rubber composition carries out kneading, and kneading temperature is 70-90 DEG C, and mixing time is
3-4min, halfway stands up sizing material and be once transposed to afterwards mill, and roller temperature is less than 60 DEG C, and roll spacing is adjusted to most tightly, carries out thin
Logical 3 times, roll spacing is adjusted to 4-5mm, each slice twice of left and right cutter；
(4) park for the second time：
By the elastomeric compound for adding sulfur through two-stage nitration be put into thermostatic chamber carry out the storage period more than 12 hours detect, it is qualified after can make
With.
It is high using the cleaning glue degree of saturation obtained by the present invention, to heat and chemicals good stability, it was difficult refining, mistake
Sulfur, stores non-aging, rotten, bin cure, to mould non-secondary pollution.
The present invention was difficult refining, over cure to heat and chemicals good stability, non-aging, rotten, bin cure was stored, to mould
Tool non-secondary pollution, overcomes the problem that die life is shortened in pickling, alkali cleaning, sandblasting etc., cleans with mould, convenient to use,
Cleaning performance is good, does not corrode mould, and normal production improves production efficiency without waiting for mould heating.
Specific embodiment
To become apparent the present invention, hereby with preferred embodiment, it is described in detail below.
Embodiment 1
One kind cleaning mould rubber composition, is made up of following raw material in parts by weight：
Processing technique is as follows：
(1) one section of refining glue：
The first step, mill roll spacing is adjusted to 0.5mm, the ethylene propylene diene rubber of required usage amount is put into into mill thin by logical 2
~3 times, powder is eaten during to knead；
Second step, by rubber and stearic acid, activating agent, age resistor, rubber homogenizing agent, triethanolamine, inner pattern releasing agent applicable, ancient horse
Grand input together in banbury carries out kneading 4min, and, at 100 DEG C, chamber body of mixer is using band plus hot merit for banburying chamber's temperature control
Energy；
3rd step, the white carbon for having mixed is put into together with precipitated calcium carbonate and carry out in banbury kneading 2min, close
, at 120 DEG C, chamber body of mixer is using band heating function for the control of refining room temperature；
4th step, load weighted plasticizer is added carries out kneading in banbury, the kneading time is 4min, and midway lifts one
Secondary floating weight, compresses top bolt after being kept for 10 seconds, sizing material is transposed to mill and carries out thin logical three times, Bao Tongshi by mixing after terminating
Roll spacing controls 0.5mm, then roll spacing is adjusted to into 2mm, each slice twice of left and right cutter；
(2) park for the first time：
The elastomeric compound completed through above-mentioned steps is put into into thermostatic chamber carried out the storage period more than 8 hours；
(3) two-stage nitration adds sulfur：
Kneaded one section of material is put in banbury and first carry out the softening of kneading in 20 seconds, then will a kind of cleaning mould of refining
Tool is all poured in banbury with all dispensings needed for rubber composition and carries out kneading, and kneading temperature is 70 DEG C, and mixing time is
3min, halfway stands up sizing material and be once transposed to afterwards mill, and roller temperature is less than 60 DEG C, and roll spacing is adjusted to most tightly, carries out thin by logical 3
Secondary, roll spacing is adjusted to 4mm, each slice twice of left and right cutter；
(4) park for the second time：
By the elastomeric compound completed through above-mentioned steps be put into thermostatic chamber carry out the storage period more than 12 hours detect, it is qualified after
Can use.
Embodiment 2
One kind cleaning mould rubber composition, is made up of following raw material in parts by weight：
Processing technique is as follows：
(1) one section of refining glue：
The first step, mill roll spacing is adjusted to 1.5mm, the ethylene propylene diene rubber of required usage amount is put into into mill thin by logical 2
~3 times, powder is eaten during to knead；
Second step, by rubber and stearic acid, activating agent, age resistor, rubber homogenizing agent, triethanolamine, inner pattern releasing agent applicable, ancient horse
Grand input together in banbury carries out kneading 6min, and, at 120 DEG C, chamber body of mixer is using band plus hot merit for banburying chamber's temperature control
Energy；
3rd step, the white carbon for having mixed is put into together with precipitated calcium carbonate and carry out in banbury kneading 3min, close
, at 140 DEG C, chamber body of mixer is using band heating function for the control of refining room temperature；
4th step, load weighted plasticizer is added carries out kneading in banbury, the kneading time is 6min, and midway lifts one
Secondary floating weight, compresses top bolt after being kept for 10 seconds, sizing material is transposed to mill and carries out thin logical three times, Bao Tongshi by mixing after terminating
Roll spacing controls 1.5mm, then roll spacing is adjusted to into 3mm, each slice twice of left and right cutter；
(2) park for the first time：
The elastomeric compound completed through above-mentioned steps is put into into thermostatic chamber carried out the storage period more than 8 hours；
(3) two-stage nitration adds sulfur：
Kneaded one section of material is put in banbury and first carry out the softening of kneading in 20 seconds, then will a kind of cleaning mould of refining
Tool is all poured in banbury with all dispensings needed for rubber composition and carries out kneading, and kneading temperature is 90 DEG C, and mixing time is
4min, halfway stands up sizing material and be once transposed to afterwards mill, and roller temperature is less than 60 DEG C, and roll spacing is adjusted to most tightly, carries out thin by logical 3
Secondary, roll spacing is adjusted to 5mm, each slice twice of left and right cutter；
(4) park for the second time：
By the elastomeric compound completed through above-mentioned steps be put into thermostatic chamber carry out the storage period more than 12 hours detect, it is qualified after
Can use.
Embodiment 3
One kind cleaning mould rubber composition, is made up of following raw material in parts by weight：
Processing technique is as follows：
(1) one section of refining glue：
The first step, mill roll spacing is adjusted to 1mm, the ethylene propylene diene rubber of required usage amount is put into into mill thin logical 3 times,
Powder is eaten during to knead；
Second step, by rubber and stearic acid, activating agent, age resistor, rubber homogenizing agent, triethanolamine, inner pattern releasing agent applicable, ancient horse
Grand input together in banbury carries out kneading 5min, and, at 110 DEG C, chamber body of mixer is using band plus hot merit for banburying chamber's temperature control
Energy；
3rd step, the white carbon for having mixed is put into together with precipitated calcium carbonate and carry out in banbury kneading 2.5min,
, at 130 DEG C, chamber body of mixer is using band heating function for banburying chamber's temperature control；
4th step, load weighted plasticizer is added carries out kneading in banbury, the kneading time is 5min, and midway lifts one
Secondary floating weight, compresses top bolt after being kept for 10 seconds, sizing material is transposed to mill and carries out thin logical three times, Bao Tongshi by mixing after terminating
Roll spacing controls 1mm, then roll spacing is adjusted to into 3mm, each slice twice of left and right cutter；
(2) park for the first time：
The elastomeric compound completed through above-mentioned steps is put into into thermostatic chamber carried out the storage period more than 8 hours；
(3) two-stage nitration adds sulfur：
Kneaded one section of material is put in banbury and first carry out the softening of kneading in 20 seconds, then will a kind of cleaning mould of refining
Tool is all poured in banbury with all dispensings needed for rubber composition and carries out kneading, and kneading temperature is 80 DEG C, and mixing time is
3.5min, halfway stands up sizing material and be once transposed to afterwards mill, and roller temperature is less than 60 DEG C, and roll spacing is adjusted to most tightly, carries out thin
Logical 3 times, roll spacing is adjusted to 4.5mm, each slice twice of left and right cutter；
(4) park for the second time：
By the elastomeric compound completed through above-mentioned steps be put into thermostatic chamber carry out the storage period more than 12 hours detect, it is qualified after
Can use.
The performance test results of rubber composition obtained in embodiment 1-3 are as shown in table 1.
Table 1
Claims (12)
1. a kind of rubber mold cleaning rubber composition, it is characterised in that be made up of following raw material in parts by weight：
The weight portion of ethylene propylene diene rubber 100；
Activating agent 10-20 weight portions；
Stearic acid 0.5-2.5 weight portions；
Age resistor 1-2 weight portions；
Reinforcing agent 30-50 weight portions；
Brightening agent 6-16 weight portions；
Plasticizer 5-20 weight portions；
Inner pattern releasing agent applicable 1-4 weight portions；
Triethanolamine 10-20 weight portions；
Coumarone 3-8 weight portions；
Rubber homogenizing agent 5-12 weight portions；
Vulcanizing agent 3-7 weight portions；
Accelerator 0.5-2.0 weight portions.
2. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the activating agent is oxidation
Zinc.
3. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the rubber homogenizing agent is
40MSF。
4. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the brightening agent is titanium white
Powder.
5. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the inner pattern releasing agent applicable is AT-
95。
6. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the ethylene propylene diene rubber is
Japanese EPDM-4050.
7. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the age resistor is MB.
8. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that described reinforcing agent is Linesless charcoal
Black 822MP is with precipitated calcium carbonate with weight ratio as 1:1.05~1:The mixture of 1.67 ratio mixing.
9. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the plasticizer be the U.S. too
Positive board paraffin oil 2280.
10. rubber mold cleaning rubber composition as claimed in claim 1, it is characterised in that the vulcanizing agent is sulfur
Powder is with the tasteless DCP of peroxide with weight ratio as 1:8~1:The mixture of 20 ratio mixing.
11. rubber mold cleaning rubber compositions as claimed in claim 1, it is characterised in that described accelerator is rush
Enter agent DM.
The processing technique of the rubber mold cleaning rubber composition described in a kind of 12. claim 1-11 any one, it is special
Levy and be, including the following four stage：
（1）One section of refining glue：
The first step, mill roll spacing is adjusted to 0.5-1.5mm, by the ethylene propylene diene rubber of required usage amount be put into mill it is thin by logical 2 ~
3 times, powder is eaten during to knead；
Second step, by rubber and stearic acid, activating agent, age resistor, rubber homogenizing agent, triethanolamine, inner pattern releasing agent applicable, coumarone one
Rise and carry out in input banbury kneading 4-6min, at 100-120 DEG C, chamber body of mixer is using band heating for banburying chamber's temperature control
Function；
3rd step, the white carbon for having mixed is put into together with precipitated calcium carbonate and carry out in banbury kneading 2-3min, banburying
At 120-140 DEG C, chamber body of mixer is using band heating function for room temperature control；
4th step, load weighted plasticizer is added carries out kneading in banbury, the kneading time is 4-6min, and midway lift is once
Floating weight, compresses top bolt after being kept for 10 seconds, sizing material is transposed to mill and carries out thin logical three times, roller when thin logical by mixing after terminating
Away from control 0.5-1.5 mm, then roll spacing is adjusted to into 2-3 mm, each slice twice of left and right cutter；
（2）Park for the first time：
By thermostatic chamber is put into through the elastomeric compound of one section of refining glue the storage period is carried out more than 8 hours；
（3）Two-stage nitration adds sulfur：
Park one section of material is put in banbury and first carry out the softening of kneading in 20 seconds, then a kind of cleaning mould of refining is used into rubber
All dispensings needed for glue composition are all poured in banbury carries out kneading, and kneading temperature is 70-90 DEG C, and mixing time is 3-
4min, halfway stands up sizing material and be once transposed to afterwards mill, and roller temperature is less than 60 DEG C, and roll spacing is adjusted to most tightly, carries out thin by logical 3
Secondary, roll spacing is adjusted to 4-5mm, each slice twice of left and right cutter；
（4）Park for the second time：
By the elastomeric compound for adding sulfur through two-stage nitration be put into thermostatic chamber carry out the storage period more than 12 hours detect, it is qualified after can use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610925929.4A CN106674757A (en) | 2016-10-24 | 2016-10-24 | Rubber composition for cleaning molds and processing technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610925929.4A CN106674757A (en) | 2016-10-24 | 2016-10-24 | Rubber composition for cleaning molds and processing technique thereof |
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| Publication Number | Publication Date |
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| CN106674757A true CN106674757A (en) | 2017-05-17 |
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ID=58840116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610925929.4A Pending CN106674757A (en) | 2016-10-24 | 2016-10-24 | Rubber composition for cleaning molds and processing technique thereof |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148296A (en) * | 2018-01-24 | 2018-06-12 | 扬州华通橡塑有限公司 | A kind of ethylene propylene diene rubber non-porous rubber and preparation method thereof |
| CN108997628A (en) * | 2018-09-17 | 2018-12-14 | 蒋博 | A kind of rubber composition and preparation method thereof for clearing up die cavity |
| CN113524738A (en) * | 2021-07-16 | 2021-10-22 | 成都盛帮密封件股份有限公司 | Processing method of unvulcanized rubber plate for autoclave molding composite material |
| WO2022111004A1 (en) * | 2020-11-30 | 2022-06-02 | 黎明职业大学 | Preparation method for epoxy resin cleaning adhesive, and application thereof |
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|---|---|---|---|---|
| CN102719025A (en) * | 2012-07-05 | 2012-10-10 | 上海众力投资发展有限公司 | High temperature resistance odorless peroxide rubber composition and preparation method thereof |
| CN105037959A (en) * | 2015-06-29 | 2015-11-11 | 柳州日高橡胶制品有限责任公司 | Rubber and preparation method thereof |
| CN105440391A (en) * | 2015-12-24 | 2016-03-30 | 湖北华亿通橡胶有限公司 | Preparation method of granular regenerated rubber for waterproof coiled materials |
-
2016
- 2016-10-24 CN CN201610925929.4A patent/CN106674757A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719025A (en) * | 2012-07-05 | 2012-10-10 | 上海众力投资发展有限公司 | High temperature resistance odorless peroxide rubber composition and preparation method thereof |
| CN105037959A (en) * | 2015-06-29 | 2015-11-11 | 柳州日高橡胶制品有限责任公司 | Rubber and preparation method thereof |
| CN105440391A (en) * | 2015-12-24 | 2016-03-30 | 湖北华亿通橡胶有限公司 | Preparation method of granular regenerated rubber for waterproof coiled materials |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148296A (en) * | 2018-01-24 | 2018-06-12 | 扬州华通橡塑有限公司 | A kind of ethylene propylene diene rubber non-porous rubber and preparation method thereof |
| CN108997628A (en) * | 2018-09-17 | 2018-12-14 | 蒋博 | A kind of rubber composition and preparation method thereof for clearing up die cavity |
| WO2022111004A1 (en) * | 2020-11-30 | 2022-06-02 | 黎明职业大学 | Preparation method for epoxy resin cleaning adhesive, and application thereof |
| CN113524738A (en) * | 2021-07-16 | 2021-10-22 | 成都盛帮密封件股份有限公司 | Processing method of unvulcanized rubber plate for autoclave molding composite material |
| CN113524738B (en) * | 2021-07-16 | 2023-04-14 | 成都盛帮密封件股份有限公司 | Processing method of unvulcanized rubber plate for autoclave molding composite material |
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