CN102516619A - Preparation method of waste rubber powder/polyene resin thermoplastic elastomer - Google Patents
Preparation method of waste rubber powder/polyene resin thermoplastic elastomer Download PDFInfo
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- CN102516619A CN102516619A CN2011104321135A CN201110432113A CN102516619A CN 102516619 A CN102516619 A CN 102516619A CN 2011104321135 A CN2011104321135 A CN 2011104321135A CN 201110432113 A CN201110432113 A CN 201110432113A CN 102516619 A CN102516619 A CN 102516619A
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- weight part
- thermoplastic elastomer
- polyolefin resin
- preparation
- crumb rubber
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to a preparation method of a waste rubber powder/polyene resin thermoplastic elastomer. The preparation method is characterized by comprising the following steps of: firstly pouring 5-50 weight parts of a waste rubber powder, 2-10 weight parts of an interfacial modifier, 0-3 weight parts of an initiator and 1-2 weight parts of processing oil into a high-speed mixer and mixing for 5-10 min; pouring 100 weight parts of a polyene resin into the high-speed mixer and mixing for 2-5 min; pouring the mixture into an internal mixer or double screw extruder for mixing, mixing at 130-200 DEG C for 2-10 min; and granulating to obtain the waste rubber powder/polyene resin thermoplastic elastomer. The thermoplastic elastomer prepared in the invention can be repeatedly used for plastic processing. The production technology is simple, requires low cost and produces little pollution.
Description
Technical field
The present invention relates to a kind of preparation that repeats to plastify the thermoplastic elastomer of processing, especially a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer.Belong to waste and scrap reclaiming technical field.
Background technology
Flourishing under the pressure of present global macromolecular material industry height, it is very urgent that the recovery of spent high molecular material and utilization have become.China is a rubber consumption big country, becomes world's rubber above the U.S. from 2002 and consumes first big country.In the rubber use, Yin Qiyi is aging a large amount of waste rubbers to have occurred with the natural degradation difficulty, has formed comparatively serious " black pollution ".Waste rubber belongs to the hot solids polymer materials, and discarded back is difficult to degraded, and still all imputrescibility is rotten to decades in the occurring in nature more than ten years.
Waste rubber is mainly derived from waste rubber product, like damaged tire, sebific duct, adhesive tape etc.; Another part derives from the scrap stock and the waste product of rubber plant's production process; Junked tire is about more than 70% in the total amount of waste old source, secondly is that waste rubber goods accounts for more than 20%; Only the damaged tire whole world just can produce about 5,000,000 every day.According to rubber consumption measuring and calculating, to the year two thousand twenty, the generating capacity of China's waste old will be above 6,000,000 t, and the appearance of a large amount of waste rubbers is land occupation, contaminate environment, harm residents ' health not only, and very easily causes fire, thereby causes the huge waste of resource.
On the other hand, waste rubber is still valuable resource, and various countries fall over each other to study the recycling mode of waste rubber.In recent years, the mode that main employing energy recovery that waste rubber product is recycled and stopping composition reclaim, like thermolysis recovering liq fuel and chemical, burning utilization, shoddy utilization, shoddy utilization.The rubber powder of producing can be spiked in rubber, pitch, the concrete, processes rubber item, pavior and material of construction.
There are defectives such as the feature of environmental protection is poor, economic benefit is low in the recycling mode of rubber at present, thereby makes the recycling of waste rubber be in lower level.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of plastic working that repeats is provided, production technique is simple, and cost is low, pollutes little waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer.
The objective of the invention is to realize like this:
A kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer, said method comprises the steps:
1. shoddy, interface modifier, initiator, treated oil are dropped into high-speed mixer, mix 5 ~ 10min;
2. again polyolefin resin is dropped into high-speed mixer, mix 2 ~ 5min;
3. mixture is dropped into Banbury mixer or twin screw extruder is mixing, mixing 2 ~ 10min, 130 ~ 200 ℃ of melting temperatures;
4. granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
Polyolefine is 100 weight parts, shoddy 5 ~ 50 weight parts, interface modifier 2 ~ 10 weight parts, initiator 0 ~ 3 weight part, treated oil 1 ~ 2 weight part in the above-mentioned steps.
The present invention uses polyolefin resin to be new LDPE (film grade), high density polyethylene(HDPE), linear low density polyethylene, Vestolen PP 7052, ethylene-vinyl ester copolymer, and the various blends of above-mentioned resin, especially blown film reclaimed materials.
Its fusing point of the polyolefin resin that uses among the present invention is lower than 200 ℃.
The particle diameter of the waste Crumb rubber that uses among the present invention is the 30-200 order.
The interface modifier that uses among the present invention is maleic anhydride and ester class thereof.
The initiator that uses among the present invention is Di Cumyl Peroxide 99, BPO, ditertiary butyl peroxide.
The treated oil that uses among the present invention is white oil, silicone oil.
As preferred version of the present invention, at first 30 weight part shoddies, 3 weight part interface modifiers, 1.5 weight part initiators, 1 weight part treated oil are dropped into high-speed mixer, mix 5min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2-5min; It is mixing then mixture to be dropped into twin screw extruder, mixing 2min, and each section of forcing machine temperature is respectively 140 ℃, 165 ℃, 178 ℃, 180 ℃, 180 ℃, 182 ℃ and 182 ℃, and granulation makes.
The present invention is with the blend in high mixer of interface modifier, initiator, waste Crumb rubber, and interface modifier and initiator are adsorbed on the shoddy, adds polyolefin resin again and mixes, mixing plasticizing in Banbury mixer or twin screw extruder then, last granulation.Utilize high temperature and action of evocating to destroy the surface of waste rubber powder reticulated structure; Carry out grafting with interface modifier then; Simultaneously set up chemical bond linkage with molecular polyolefin; Improve the interface between waste Crumb rubber particle and polyolefine, improved the mechanical property of waste Crumb rubber/TPO.The thermoplastic elastomer that has prepared plasticity-processing.
A kind of waste Crumb rubber provided by the invention/polyolefin resin thermoplastic elastomer, processing characteristics is good, applicable to extrude, calendering, injection moulding processing, comprehensive mechanical property is improved significantly, and can be used for preparing pavement material, warehouse, bed course, drainage pipe etc.The present invention implements simply, and with low cost, environmental pollution is little, has broad application prospects.This method has improved the use range and the economic worth of waste Crumb rubber greatly.
Embodiment
Embodiment 1
At first 30 weight part shoddies, 3 weight part maleic anhydrides (MAH), 1.5 weight part Di Cumyl Peroxide 99s (DCP), 1 weight part white oil are dropped into high-speed mixer, mix 5min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2min; It is mixing then mixture to be dropped into twin screw extruder, and mixing 2min, extruder temperature are 140 ℃, 165 ℃, 178 ℃, 180 ℃, 180 ℃, 182 ℃, 182 ℃; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
Embodiment 2
At first 30 weight part shoddies, 2 weight part maleic anhydrides (MAH), 0.5 weight part initiator, 1.5 weight part white oils are dropped into high-speed mixer, mix 8min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2min; It is mixing then mixture to be dropped into twin screw extruder, and mixing 2min, extruder temperature are 140 ℃, 165 ℃, 178 ℃, 180 ℃, 180 ℃, 182 ℃, 182 ℃; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
Embodiment 3
At first 30 weight part shoddies, 5 weight part maleic anhydrides (MAH), 1 weight part initiator, 1 weight part treated oil are dropped into high-speed mixer, mix 10min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 3min; It is mixing then mixture to be dropped into twin screw extruder, and mixing 2min, extruder temperature are 145 ℃, 165 ℃, 178 ℃, 183 ℃, 185 ℃, 185 ℃, 185 ℃; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
Embodiment 4
At first 40 weight part shoddies, 5 weight part maleic anhydrides (MAH), 1.5 weight part initiators, 2 weight part treated oils are dropped into high-speed mixer, mix 8min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 3min; It is mixing then mixture to be dropped into twin screw extruder, and mixing 2min, extruder temperature are 145 ℃, 165 ℃, 178 ℃, 183 ℃, 185 ℃, 185 ℃, 185 ℃; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
Embodiment 5
At first 50 weight part shoddies, 5 weight part maleic anhydrides (MAH), 0.5 weight part initiator, 1 weight part treated oil are dropped into high-speed mixer, mix 5min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2min; Then mixture is dropped into Banbury mixer, mixing 15min, 180 ℃ of melting temperatures; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer.
With being injection molded into the standard batten after the above embodiment products obtained therefrom drying, by its performance of national standard test, the result is as shown in table 1.
Table 1 embodiment test result
In sum, through the modification of interface modifier, the waste Crumb rubber/polyolefin resin thermoplastic elastomer over-all properties of preparation is improved.The modification waste Crumb rubber/polyolefin resin thermoplastic elastomer moulding processability is good, the cost of material is low.Can have very high price advantage adaptable across application such as pavement material, material of construction.
Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the rights protection scope of the present invention.
Claims (7)
1. waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer; It is characterized in that: said method comprises the steps: at first 5-50 weight part shoddy, 2-10 weight part interface modifier, 0-3 weight part initiator, 1-2 weight part treated oil to be dropped into high-speed mixer, mixes 5-10min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2-5min; Then mixture is dropped in Banbury mixer or the twin screw extruder mixing, mixing 2-10min, melting temperature 130-200 ℃; Granulation obtains a kind of waste Crumb rubber/polyolefin resin thermoplastic elastomer;
Described interface modifier is maleic anhydride or its ester class;
Described initiator is Di Cumyl Peroxide 99, BPO or ditertiary butyl peroxide.
2. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 1; It is characterized in that at first 30 weight part shoddies, 3 weight part interface modifiers, 1.5 weight part initiators, 1 weight part treated oil being dropped into high-speed mixer, mix 5min; Again 100 weight part polyolefin resines are dropped into high-speed mixer, mix 2-5min; It is mixing then mixture to be dropped into twin screw extruder, mixing 2min, and each section of forcing machine temperature is respectively 140 ℃, 165 ℃, 178 ℃, 180 ℃, 180 ℃, 182 ℃ and 182 ℃, and granulation makes.
3. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 1 and 2, it is characterized in that used polyolefin resin is one or more blend in new LDPE (film grade), high density polyethylene(HDPE), linear low density polyethylene, Vestolen PP 7052, the ethylene-vinyl ester copolymer.
4. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 3, it is characterized in that said polyolefin resin is the blown film reclaimed materials.
5. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 3, it is characterized in that its fusing point of used polyolefin resin is lower than 200 ℃.
6. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 1 and 2, it is characterized in that used waste Crumb rubber particle diameter is the 30-200 order.
7. require described a kind of waste Crumb rubber/polyolefin resin process for preparation of thermoplastic elastomer according to right 1 and 2, it is characterized in that described treated oil is white oil or silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104321135A CN102516619A (en) | 2011-12-21 | 2011-12-21 | Preparation method of waste rubber powder/polyene resin thermoplastic elastomer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104321135A CN102516619A (en) | 2011-12-21 | 2011-12-21 | Preparation method of waste rubber powder/polyene resin thermoplastic elastomer |
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| CN102516619A true CN102516619A (en) | 2012-06-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739935A (en) * | 2013-11-25 | 2014-04-23 | 吴江市董鑫塑料包装厂 | Polypropylene plastic packing belt |
| CN104327342A (en) * | 2014-11-26 | 2015-02-04 | 重庆可益荧新材料有限公司 | Thermoplastic elastomer and preparation method thereof |
| GB2536641A (en) * | 2015-03-23 | 2016-09-28 | Crumb Rubber Ltd | Thermoplastic elastomer composition and a process for its production |
| CN106146955A (en) * | 2015-04-15 | 2016-11-23 | 佛山市高明区(中国科学院)新材料专业中心 | A kind of preparation method and application of reclaimed rubber latex |
| CN106633264A (en) * | 2016-12-27 | 2017-05-10 | 中国葛洲坝集团绿园科技有限公司 | Elastic alloy and preparation method therefor |
| CN107236188A (en) * | 2017-06-26 | 2017-10-10 | 湖北大学 | A kind of modified waste rubber powder and pp intermingling materials and preparation method thereof |
| CN109265103A (en) * | 2018-10-08 | 2019-01-25 | 广东白云学院 | Elastic water-proof bed course and preparation method thereof |
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| CN1528815A (en) * | 2003-09-29 | 2004-09-15 | 华南理工大学 | In situ modified waste rubber powder composite material and preparing method thereof |
| CN101029156A (en) * | 2007-03-02 | 2007-09-05 | 陆洪兴 | EVA elastic rubber brick and its production |
| CN102101931A (en) * | 2010-10-21 | 2011-06-22 | 曾广胜 | Ultrafine waste rubber powder thermoplastic elastomer material and preparation process thereof |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1528815A (en) * | 2003-09-29 | 2004-09-15 | 华南理工大学 | In situ modified waste rubber powder composite material and preparing method thereof |
| CN101029156A (en) * | 2007-03-02 | 2007-09-05 | 陆洪兴 | EVA elastic rubber brick and its production |
| CN102101931A (en) * | 2010-10-21 | 2011-06-22 | 曾广胜 | Ultrafine waste rubber powder thermoplastic elastomer material and preparation process thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739935A (en) * | 2013-11-25 | 2014-04-23 | 吴江市董鑫塑料包装厂 | Polypropylene plastic packing belt |
| CN104327342A (en) * | 2014-11-26 | 2015-02-04 | 重庆可益荧新材料有限公司 | Thermoplastic elastomer and preparation method thereof |
| CN104327342B (en) * | 2014-11-26 | 2016-05-18 | 中北大学 | A kind of thermoplastic elastomer (TPE) and preparation method thereof |
| GB2536641A (en) * | 2015-03-23 | 2016-09-28 | Crumb Rubber Ltd | Thermoplastic elastomer composition and a process for its production |
| GB2536641B (en) * | 2015-03-23 | 2020-01-01 | Crumb Rubber Ltd | Thermoplastic elastomer composition and a process for its production |
| CN106146955A (en) * | 2015-04-15 | 2016-11-23 | 佛山市高明区(中国科学院)新材料专业中心 | A kind of preparation method and application of reclaimed rubber latex |
| CN106633264A (en) * | 2016-12-27 | 2017-05-10 | 中国葛洲坝集团绿园科技有限公司 | Elastic alloy and preparation method therefor |
| WO2018120421A1 (en) * | 2016-12-27 | 2018-07-05 | 中国葛洲坝集团绿园科技有限公司 | Elastic alloy and preparation method therefor |
| CN107236188A (en) * | 2017-06-26 | 2017-10-10 | 湖北大学 | A kind of modified waste rubber powder and pp intermingling materials and preparation method thereof |
| CN109265103A (en) * | 2018-10-08 | 2019-01-25 | 广东白云学院 | Elastic water-proof bed course and preparation method thereof |
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Application publication date: 20120627 |