CN105504428A - Preparation method of reclaimed rubber powder-plastified synthetic rubber - Google Patents
Preparation method of reclaimed rubber powder-plastified synthetic rubber Download PDFInfo
- Publication number
- CN105504428A CN105504428A CN201610014733.XA CN201610014733A CN105504428A CN 105504428 A CN105504428 A CN 105504428A CN 201610014733 A CN201610014733 A CN 201610014733A CN 105504428 A CN105504428 A CN 105504428A
- Authority
- CN
- China
- Prior art keywords
- rubber powder
- rubber
- plastifies
- preparation
- regnerated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
- C08L2207/24—Recycled plastic recycling of old tyres and caoutchouc and addition of caoutchouc particles
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to the technical field of reclaimed rubber production, and particularly relates to a preparation method of reclaimed rubber powder-plastified synthetic rubber. The preparation method of the reclaimed rubber powder-plastified synthetic rubber comprises the following steps of 1 plastifying; 2 rubber piece rolling. According to the preparation method, no auxiliary needs to be added in the plastifying process, energy conservation and environment protection are achieved, and due to decreasing of the auxiliary adding amount and reducing of discharge in the production process, the energy consumption is reduced by 50% or above compared with a traditional technology; no wastewater or harmful gas is discharged, and compared with the traditional old technology that water needs to be added for temperature lowering and cooling, the novel technology has the advantages that the water does not need to be added, and therefore no wastewater is drained; closed and continuous automatic production is achieved, and no harmful gas emission brought by moisture evaporation exists.
Description
Technical field
The invention belongs to the technical field that reclaimed rubber is produced, be specifically related to a kind of regnerated rubber powder and plastify elastomeric preparation method.
Background technology
In conventional regeneration rubber preparation process, need to add various auxiliary agent in plasticizing operation, mainly comprise various promotor, oxidation inhibitor, stablizer, thermo-stabilizer, initiator, softening agent etc., wherein tenderizer and activator are requisite materials in conventional regeneration Rubber processing additive, although containing a large amount of objectionable impuritiess in two kinds of auxiliary agents, inflammable and explosive, pollutant atmosphere, be detrimental to health, danger coefficient is high, but in existing reclaimed rubber processing, still consumption is surprising, wherein in the waste old course of processing consumption up to 15 ~ 30%.
And China produces the waste and old regenerated rubber of several ten million tons every year, all use the words of conventional rubber additive, the harm produced is difficult to the imagination, that is waste old is processed, reduced rubber performance, the cost paid is more much higher than producing the profit brought, and this is also external a lot of developed countries waste rubber goods reduction process, even shelves one of reason do not processed.Along with popularizing of family saloon, the output of the annual waste tire of automobile of China increases day by day, does not process if shelved, and will certainly cause environmental pollution, and form potential safety hazard, for China, reduction process cost is high, and utilization ratio is low, and market is little.
Summary of the invention
The object of the invention is to the defect for above-mentioned existence and provide a kind of regnerated rubber powder to plastify elastomeric preparation method, this preparation method does not need to add any auxiliary agent in plasticizing operation, energy-conserving and environment-protective, the minimizing of additive dosage and the minimizing of discharge in production process, make observable index traditional technology save more than 50%; Discharge without waste water and obnoxious flavour, comparing tradition needs to add water the old technology of cooling down rubber powder, and this preparation method does not need to add water, thus does not have discharge of wastewater; Airtight, serialization is produced automatically, does not have the noxious gas emission that water evaporation brings.
Technical scheme of the present invention is: a kind of regnerated rubber powder plastifies elastomeric preparation method, comprises the following steps:
(1) plastify: will be crushed to 30 ~ 60 object waste rubber powders and be added in rubber powder desulfurization Plasticator, carrying out being heated to temperature is 230 ~ 320 DEG C, carries out desulfurization plastics processing in atmospheric conditions; After desulfurization plasticizing, the sulfurous gas of gained converts liquid to by water cooler and discharges collection;
(2) friction sheet: the plasticized rubber powder after plastics processing is carried out being cooled to 38 ~ 40 DEG C; Then in assistant feeding device, add regenerated rubber plasticizing compound agent, be delivered in friction machine after this regenerated rubber plasticizing compound agent mixes with plasticized rubber powder and carry out friction sheet; Wherein said regenerated rubber plasticizing compound agent comprises following raw material: peptizer, stearic acid, zinc oxide, rosin, silicon-dioxide, scorch retarder and terpine resin.
Electromagnetic heater is provided with in rubber powder desulfurization Plasticator in described step (1) plasticizing.
In described step (2) friction sheet, assistant feeding device is agitator type adding set.
In described step (2) friction sheet, assistant feeding device is arranged at the exit of rubber powder desulfurization Plasticator in described step (1).
In described step (2) friction sheet, regenerated rubber plasticizing compound agent comprises the raw material of following weight part: peptizer 0.5 ~ 1.2 part, stearic acid 3 ~ 6 parts, 6 ~ 9 parts, zinc oxide, rosin 2.5 ~ 5 parts, silicon-dioxide 30 ~ 60 parts, scorch retarder 0.8 ~ 1.6 part and terpine resin 5 ~ 8 parts.
In described regenerated rubber plasticizing compound agent, peptizer is at least one in SJ-103, peptizer R.
In described regenerated rubber plasticizing compound agent, scorch retarder is at least one in organic acid, nitroso compound class and sulfenamide.
In described regenerated rubber plasticizing compound agent, terpine resin is 138# ester gum or 145# Gum Rosin or black rosin resin.
In described step (2) friction sheet, the top of friction machine is provided with water spraying device.
Beneficial effect of the present invention is: it take waste rubber powder as raw material that regnerated rubber powder of the present invention plastifies elastomeric preparation method, any auxiliary agent is not added in plasticizing process, process under the high temperature of 230-320 DEG C through automatization normal pressure, rubber powder desulfurization Plasticator that is anhydrous, non-exhaust emission, rubber activity molecule is activated again, elasticity and the toughness of rubber are also recovered to some extent, and the regnerated rubber powder of acquisition has very strong plasticity-.Under the proper temperature condition of 230-320 DEG C, impel the molecular chain of rubber molecule-S-C-S key fully to open, isolate sulfur molecule, free radical-rubber chain in rubber molecule freely combines once again, the rubber molecule of final formation not sulfur-bearing, the original attribute of reduced rubber, improves the performance index of regenerated rubber.The present invention only adopts the mode of heat, just rubber molecule can be impelled to recover plasticity-, change plasticizing in the processing of conventional regeneration glue rubber powder and must add the feature of tenderizer and activator, both saved the energy, additionally reduce and add above auxiliary agent and react the environmental pollution brought.Simultaneously with the regnerated rubber powder that this type of explained hereafter goes out, making rubber item can be directly used in, use after also can carrying out banburying refining reprocessing.
In the plasticizing process of preparation method of the present invention, rubber powder is at Plasticator internal cooling, and the temperature when cooled rubber powder is discharged outside Plasticator is between 38 ~ 40 DEG C, and the rubber powder of discharge now directly can enter friction machine friction sheet; Compare in traditional technology and need the cooling down rubber powder that adds water, the present invention does not need to add water, and does not just have discharge of wastewater yet; Airtight, serialization is produced automatically, does not have aqueous vapor to evaporate the noxious gas emission brought.
Only add regenerated rubber plasticizing compound agent in process of production, do not use any other Rubber Softener, activator, reduce because tenderizer, activator use the pollution problem brought.Described regnerated rubber powder plastifies employing that regenerated rubber in novel plasticizing mode and friction sheet process plastifies compound agent by elastomeric preparation method and works in coordination with and be combined into complete organic whole, make to produce rubber powder quality to be greatly improved, non-odor generated rubber tensile strength can reach 16.5, extensibility can reach 500%, and mooney viscosity can be down to 50.Ask for an interview table 1 in detail.
Table 1
Regnerated rubber powder of the present invention plastifies elastomeric preparation method not to be needed to add any auxiliary agent, energy-conserving and environment-protective in plasticizing operation, the minimizing of additive dosage and the minimizing of discharge in production process, makes observable index traditional technology save more than 50%; Discharge without waste water and obnoxious flavour, comparing tradition needs to add water the old technology of cooling down rubber powder, and this preparation method does not need to add water, thus does not have discharge of wastewater; Airtight, serialization is produced automatically, does not have the noxious gas emission that water evaporation brings.
Embodiment
Below by embodiment, the present invention will be described in detail.
A kind of regnerated rubber powder plastifies elastomeric preparation method, comprises the following steps:
(1) plastify: will be crushed to 30 ~ 60 object waste rubber powders and be added in rubber powder desulfurization Plasticator, carrying out being heated to temperature is 230 ~ 320 DEG C, carries out desulfurization plastics processing in atmospheric conditions; After desulfurization plasticizing, the sulfurous gas of gained converts liquid to by water cooler and discharges collection; Wherein be provided with electromagnetic heater in rubber powder desulfurization Plasticator in plasticizing.
(2) friction sheet: the plasticized rubber powder after plastics processing is carried out being cooled to 38 ~ 40 DEG C; Then in the agitator type adding set being arranged at rubber powder desulfurization Plasticator exit, add regenerated rubber plasticizing compound agent, be delivered in friction machine after this regenerated rubber plasticizing compound agent mixes with plasticized rubber powder and carry out friction sheet; Wherein said regenerated rubber plasticizing compound agent comprises the raw material of following weight part: peptizer 0.5 ~ 1.2 part, stearic acid 3 ~ 6 parts, 6 ~ 9 parts, zinc oxide, rosin 2.5 ~ 5 parts, silicon-dioxide 30 ~ 60 parts, scorch retarder 0.8 ~ 1.6 part and terpine resin 5 ~ 8 parts.
In described regenerated rubber plasticizing compound agent, peptizer is at least one in SJ-103, peptizer R.
In described regenerated rubber plasticizing compound agent, scorch retarder is at least one in organic acid, nitroso compound class and sulfenamide.Organic acid scorch retarder can select phenylformic acid, Whitfield's ointment, M-nitro benzoic acid, adjacent acetic acid phenylformic acid, Tetra hydro Phthalic anhydride; Nitroso compound class scorch retarder can select N nitrosodiphenyl amine, N-nitroso-group-Phenyl beta naphthylamine, N-nitroso-group-2,2,4 trimethyl 1,2 dihydroquinoline polymer; Sulfonamide antiscorchiag agent is a series of compounds containing S-N bonding, and general formula of molecular structure is as follows: R1 (R2)-N-S-R3.
In described regenerated rubber plasticizing compound agent, terpine resin is 138# ester gum or 145# Gum Rosin or black rosin resin.
In described step (2) friction sheet, the top of friction machine is provided with water spraying device.
Claims (9)
1. regnerated rubber powder plastifies an elastomeric preparation method, comprises the following steps:
(1) plastify: will be crushed to 30 ~ 60 object waste rubber powders and be added in rubber powder desulfurization Plasticator, carrying out being heated to temperature is 230 ~ 320 DEG C, carries out desulfurization plastics processing in atmospheric conditions; After desulfurization plasticizing, the sulfurous gas of gained converts liquid to by water cooler and discharges collection;
(2) friction sheet: the plasticized rubber powder after plastics processing is carried out being cooled to 38 ~ 40 DEG C; Then in assistant feeding device, add regenerated rubber plasticizing compound agent, be delivered in friction machine after this regenerated rubber plasticizing compound agent mixes with plasticized rubber powder and carry out friction sheet; Wherein said regenerated rubber plasticizing compound agent comprises following raw material: peptizer, stearic acid, zinc oxide, rosin, silicon-dioxide, scorch retarder and terpine resin.
2. regnerated rubber powder plastifies elastomeric preparation method according to claim 1, it is characterized in that, is provided with electromagnetic heater in described step (1) plasticizing in rubber powder desulfurization Plasticator.
3. regnerated rubber powder plastifies elastomeric preparation method according to claim 1, it is characterized in that, in described step (2) friction sheet, assistant feeding device is agitator type adding set.
4. regnerated rubber powder plastifies elastomeric preparation method according to claim 3, it is characterized in that, in described step (2) friction sheet, assistant feeding device is arranged at the exit of rubber powder desulfurization Plasticator in described step (1).
5. regnerated rubber powder plastifies elastomeric preparation method according to claim 1, it is characterized in that, in described step (2) friction sheet, regenerated rubber plasticizing compound agent comprises the raw material of following weight part: peptizer 0.5 ~ 1.2 part, stearic acid 3 ~ 6 parts, 6 ~ 9 parts, zinc oxide, rosin 2.5 ~ 5 parts, silicon-dioxide 30 ~ 60 parts, scorch retarder 0.8 ~ 1.6 part and terpine resin 5 ~ 8 parts.
6. regnerated rubber powder plastifies elastomeric preparation method according to claim 5, it is characterized in that, in described regenerated rubber plasticizing compound agent, peptizer is at least one in SJ-103, peptizer R.
7. regnerated rubber powder plastifies elastomeric preparation method according to claim 5, it is characterized in that, in described regenerated rubber plasticizing compound agent, scorch retarder is at least one in organic acid, nitroso compound class and sulfenamide.
8. regnerated rubber powder plastifies elastomeric preparation method according to claim 5, it is characterized in that, in described regenerated rubber plasticizing compound agent, terpine resin is 138# ester gum or 145# Gum Rosin or black rosin resin.
9. regnerated rubber powder plastifies elastomeric preparation method according to claim 1, it is characterized in that, in described step (2) friction sheet, the top of friction machine is provided with water spraying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014733.XA CN105504428A (en) | 2016-01-08 | 2016-01-08 | Preparation method of reclaimed rubber powder-plastified synthetic rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610014733.XA CN105504428A (en) | 2016-01-08 | 2016-01-08 | Preparation method of reclaimed rubber powder-plastified synthetic rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105504428A true CN105504428A (en) | 2016-04-20 |
Family
ID=55712767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610014733.XA Pending CN105504428A (en) | 2016-01-08 | 2016-01-08 | Preparation method of reclaimed rubber powder-plastified synthetic rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105504428A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134121A1 (en) * | 2020-12-26 | 2022-06-30 | 王金明 | Environmentally friendly reclaimed rubber preparation method |
| CN114957825A (en) * | 2022-07-12 | 2022-08-30 | 四川省隆昌海燕橡胶有限公司 | Preparation process for producing engineering inner tube reclaimed rubber by using waste rubber |
| WO2023059179A1 (en) * | 2021-10-07 | 2023-04-13 | Top One Polymer Sdn. Bhd. | Process for preparing devulcanized rubber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434710A (en) * | 2008-12-18 | 2009-05-20 | 泰安市金山橡胶工业有限公司 | Automatic rubber powder plasticizing process and apparatus thereof |
| CN103435843A (en) * | 2013-08-29 | 2013-12-11 | 中胶橡胶资源再生（青岛）有限公司 | Reclaiming agent, reclaimed rubber prepared therefrom, and preparation method of reclaimed rubber |
| CN103937059A (en) * | 2014-04-10 | 2014-07-23 | 青岛通力橡胶科技有限公司 | Environment-friendly reclaimed rubber with high tenacity and stable Mooney viscosity and preparation method thereof |
-
2016
- 2016-01-08 CN CN201610014733.XA patent/CN105504428A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434710A (en) * | 2008-12-18 | 2009-05-20 | 泰安市金山橡胶工业有限公司 | Automatic rubber powder plasticizing process and apparatus thereof |
| CN103435843A (en) * | 2013-08-29 | 2013-12-11 | 中胶橡胶资源再生（青岛）有限公司 | Reclaiming agent, reclaimed rubber prepared therefrom, and preparation method of reclaimed rubber |
| CN103937059A (en) * | 2014-04-10 | 2014-07-23 | 青岛通力橡胶科技有限公司 | Environment-friendly reclaimed rubber with high tenacity and stable Mooney viscosity and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134121A1 (en) * | 2020-12-26 | 2022-06-30 | 王金明 | Environmentally friendly reclaimed rubber preparation method |
| WO2023059179A1 (en) * | 2021-10-07 | 2023-04-13 | Top One Polymer Sdn. Bhd. | Process for preparing devulcanized rubber |
| CN114957825A (en) * | 2022-07-12 | 2022-08-30 | 四川省隆昌海燕橡胶有限公司 | Preparation process for producing engineering inner tube reclaimed rubber by using waste rubber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105504428A (en) | Preparation method of reclaimed rubber powder-plastified synthetic rubber | |
| DE102009031653B4 (en) | tires | |
| CN103408850B (en) | DTDM (4,4'-dithiomorpholine) pre-dispersed master adhesive particles and preparation method thereof | |
| CN104312119A (en) | Straw 3D printing consumable and preparation method thereof | |
| DE102014100210A1 (en) | RUBBER COMPOSITION FOR FIBER CORD GUMMING AND AIR TIRES | |
| CN105670072A (en) | Production method of degradable plastic woven bag | |
| CN204123590U (en) | A kind of injection machine clout recycling system | |
| CN103146215A (en) | Recovery technique of waste plastic | |
| CN101108819A (en) | Production method of rubber vulcanization accelerator diisobutyl thiuram disulfide | |
| DE202011110368U1 (en) | rubber preparations | |
| WO2019161605A1 (en) | Waste rubber low-temperature high-efficiency composite regeneration activator ns/sa and preparation method therefor | |
| CN105754173A (en) | Low-cost and efficient method using devulcanized rubber powder to directly prepare rubber compound | |
| CN102617836A (en) | High polymer ester calcium and synthesis method thereof | |
| CN105647093A (en) | Biodegradable starch-based resin composition | |
| CN102924766A (en) | Mixed rubber for manufacturing rubber | |
| WO2021159885A1 (en) | Low-odor semi-steel carcass rubber composition | |
| CN115612189B (en) | Low-temperature vulcanized rubber material and preparation method thereof | |
| US2414145A (en) | Plasticizing of vulcanized rubber | |
| CN111073065A (en) | Tire wirecord fabric rubber material combination and preparation method thereof | |
| CN105461955A (en) | Novel plasticized synthetic agent special for waste regenerated rubber | |
| CN113527763B (en) | Composite regenerative activator for regenerating waste tire rubber powder at room temperature and preparation method and application thereof | |
| CN112778590B (en) | Rubber composition, preparation method and application thereof, rubber composition for tire treads and preparation method thereof | |
| CN109694506B (en) | Low-zinc high-wear-resistance rubber composition and application thereof | |
| CN113045880A (en) | Novel environment-friendly plastic and preparation method thereof | |
| CN110922703A (en) | PVA starch-based master batch composition, master batch and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |