CN105254919B - A kind of method that environment-friendly, high-intensity power tyre reclaim is prepared using microwave - Google Patents

A kind of method that environment-friendly, high-intensity power tyre reclaim is prepared using microwave Download PDF

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Publication number
CN105254919B
CN105254919B CN201510759458.XA CN201510759458A CN105254919B CN 105254919 B CN105254919 B CN 105254919B CN 201510759458 A CN201510759458 A CN 201510759458A CN 105254919 B CN105254919 B CN 105254919B
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China
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agent
step
microwave
glue
micro wave
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CN201510759458.XA
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Chinese (zh)
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CN105254919A (en
Inventor
王艳秋
祝木伟
张芳儒
张恒中
徐云慧
翁国文
丛后罗
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徐州工业职业技术学院
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/70Recovery of polymers other than plastics or rubbers
    • Y02W30/702Recovery of polymers other than plastics or rubbers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • Y02W30/706Recovery of polymers other than plastics or rubbers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material

Abstract

The invention discloses a kind of methods that environment-friendly, high-intensity power tyre reclaim is prepared using microwave, its preparation method is as follows, using the MPa of tensile strength >=25, the waste product of elongation at break >=500% crushes the rubber powder of gained, with softening agent, composite regenerant, coupling agent, be kneaded and preliminary modified glue powder is made, be 2450 MHz in radiation frequency, microwave irradiation power is 800~1200W, microwave irradiation time is controlled in 1min 40s~2min 30s, micro wave regeneration glue is made and immediately enters cooling device, after being cooled down and refines, both obtains reclaimed rubber.Compared with traditional waste old high temperature regeneration method; the reclaimed rubber preparation method both protected molecular backbone not to be destroyed; cross-bond can be broken again; recovery time is short; regeneration temperature is low; production efficiency is 5 times of conventional method, remains the performance of recycling rubber, has prominent economic benefit and social benefit.

Description

A kind of method that environment-friendly, high-intensity power tyre reclaim is prepared using microwave

Technical field

The present invention relates to a kind of methods that environment-friendly, high-intensity power tyre reclaim is prepared using microwave, belong to reclaimed rubber and prepare neck Domain.

Background technology

The quantity of waste old material is only second to waste plastics, wherein automobile tire whole world year in spent high molecular material Learies are at 1,000,000,000 or more, and China is at 5000~60,000,000.The recycling of waste old is other based on waste tire Waste rubber shoe and inner tube of a tyre etc. are further included, the utilization of scrap rubber is conducive to environmental protection, realizes the recycling of resource, is conducive to society Economic sustainable development.

Conventional regeneration glue needed at present in regenerative process in regenerating tank carry out, it is necessary to heating stirring, cleaning, dehydration, The processes such as refining, equipment and process are more complicated, and investment is big.In regenerative process, larger amount of softening agent coal tar, pine are added Tar, oil extract etc., make reclaimed rubber have very niff, and larger pollution also makes containing much toxic The developed countries such as the carcinogenic chemical substance of people, current Europe have limited going out for the rubbers such as the tire containing these chemical substances Mouthful.The conventional regeneration glue current regeneration technology time, steam pressure was in 1MP mostly in 4h or soaLeft and right, the time is long, and efficiency is low.Often It is relatively low to advise the tensile strength of reclaimed rubber, generally in 5~8MPa.

The content of the invention

In order to overcome the shortcomings of above-mentioned traditional technology, environment-friendly, high-intensity is prepared using microwave new process the present invention provides a kind of The method of power tyre reclaim, each raw material and its mass fraction are:

Waste rubber powder 100.00

Softening agent 5.00~10.00

Multiplicity reactivation regenerative agent 420/M 0.40~0.70

Coupling agent KH570 1.00~2.50

The multiplicity reactivation regenerative agent 420/M is by activating and regenerating agent 420(Chemical name is:Two sulphur of polyalkylbenzene phenol Compound)With activating and regenerating agent M(Chemical name is:2- thiol benzothiazoles)It forms, in mass ratio regenerative agent 420:Again Raw agent M=1:1 is formulated.

Its preparation method carries out as follows:

Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre of the % of elongation at break >=500 and/or Engineering tyre prepares the waste rubber powder of 10~30 mesh through crushing.

Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent, composite regenerant 420/M, coupling agent KH570 carries out thin logical mixing 10min, and at 40 ± 5 DEG C, roll spacing is controlled after 0.8 ± 0.2mm, mixing for the temperature control of open mill Bottom sheet, the sizing material thickness control of bottom sheet is in 0.8-1.2mm, obtained preliminary modified glue powder.

Step 3)By preliminary modified adhesive at 40~60 DEG C, carry out microwave radiation, radiation frequency be 2450 MHz, microwave radiation Power is 800~1200W, and microwave irradiation time is controlled after 1min 40s~2min 30s, micro wave regeneration, and micro wave regeneration is made Glue.

Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control System is below 40 DEG C.

Step 5)Micro wave regeneration glue after cooling is refined, the film face after refining is bright and clean, homogeneous, both Reclaimed rubber.

Step 6)Performance detection.According to national standard《Reclaimed rubber》GB/T 13460-2008 reclaimed rubbers test formulations successively will Various compounding agents, which are added in reclaimed rubber, to be kneaded, and then vulcanizes rubber compound, and after parking for 24 hours, physical machine is carried out to sizing material The test of tool performance and process industrial art performance.

The softening agent be naphthenic oil, pine tar.

The performance test results show the tensile strength of environment-friendly, high-intensity power tyre reclaim up to 23.5 more than MPa, fracture Elongation reaches 450 more than %, and Wei Shi plasticitys are 0.35~0.45.Show regeneration of the product of the present invention to waste old rubber powder Achieve good effect.

The beneficial effects of the invention are as follows:The method that the microwave radiation that the present invention uses prepares reclaimed rubber, both protects molecule Main chain is not destroyed, and composite regenerated activator can make cross-bond chain rupture under high temperature and low temperature, double to polar bond and unsaturation Key has good effect.Compared with conventional regeneration glue, microwave radiation reclaimed rubber remains the technique and machinery of reclaimed rubber Performance, with environmental-friendly, saving energy drastically increases production efficiency, production efficiency is 5 times of conventional method.With prominent The economic benefit and social benefit gone out.

Specific embodiment

With reference to embodiment, the invention will be further described.

Embodiment 1

Each raw material and its mass fraction are:

Waste rubber powder 100.00

Softening agent naphthenic oil 10.00

Multiplicity reactivation regenerative agent 420/M 0.70

Coupling agent KH570 2.00

The multiplicity reactivation regenerative agent 420/M is made of activating and regenerating agent 420 and activating and regenerating agent M, is matched somebody with somebody by quality Than for regenerative agent 420:Regenerative agent M=1:1 is formulated.

Its preparation method carries out as follows:

Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre of the % of elongation at break >=500 and/or Engineering tyre prepares the waste rubber powder of 20 mesh or so through crushing;

Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent naphthenic oil, composite regenerant 420/ M, coupling agent KH570, carry out thin logical mixing 10min, the temperature control of open mill at 40 ± 5 DEG C, roll spacing control 0.8 ± 0.2mm, bottom sheet after mixing, the sizing material thickness control of bottom sheet is in 1.0mm or so, obtained preliminary modified glue powder;

Step 3)By preliminary modified adhesive at 50 DEG C or so, uniformly launched with 2cm thickness onto roller conveyor, on roller-way It is mounted with high-frequency microwave radiation appliance, the speed that roller-way conveys forward is 4.5m/min, microwave radiation roller-way length 7.5m, in roller It is conveyed forward on road, microwave radiation regeneration is carried out during conveying, radiation frequency is 2450 MHz, and microwave irradiation power is 1200W, microwave irradiation time are controlled after 2min 30s, micro wave regeneration, and micro wave regeneration glue is made;

Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control System is below 40 DEG C;

Step 5)Micro wave regeneration glue after cooling is refined, refines 20min, refining temperature is controlled at 45 DEG C, refining Film face afterwards is bright and clean, homogeneous, both obtains reclaimed rubber;

Step 6)Performance detection.According to national standard《Reclaimed rubber》GB/T 13460-2008 reclaimed rubbers test formulations successively will Various compounding agents, which are added in reclaimed rubber, to be kneaded, and then vulcanizes rubber compound, after parking for 24 hours, to above-mentioned reclaimed rubber, is carried out The test of physical mechanical property and process industrial art performance.

The performance test results show reclaimed rubber prepared by the embodiment, and tensile strength is up to 23.7 MPa, elongation at break It is 480%, Wei Shi plasticitys 0.44.It is good to show that the product of the invention obtained achieves the regeneration of waste old rubber powder Effect.

Embodiment 2

Each raw material and its mass fraction are:

Waste rubber powder 100.00

Softening agent pine tar 8.00

Multiplicity reactivation regenerative agent 420/M 0.50

Coupling agent KH570 2.50

The multiplicity reactivation regenerative agent 420/M is made of activating and regenerating agent 420 and activating and regenerating agent M, is matched somebody with somebody by quality Than for regenerative agent 420:Regenerative agent M=1:1 is formulated.

Its preparation method carries out as follows:

Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre of the % of elongation at break >=500 and/or Engineering tyre prepares the waste rubber powder of 30 mesh or so through crushing;

Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent pine tar, composite regenerant 420/M, Coupling agent KH570 carries out thin logical mixing 10min, and at 40 ± 5 DEG C, roll spacing is controlled in 0.8 ± 0.2mm for the temperature control of open mill, Bottom sheet after mixing, the sizing material thickness control of bottom sheet is in 1.0mm or so, obtained preliminary modified glue powder;

Step 3)By preliminary modified adhesive at 55 DEG C or so, uniformly launched with 2cm thickness onto roller conveyor, on roller-way It is mounted with high-frequency microwave radiation appliance, the speed that roller-way conveys forward is 4.5m/min, microwave radiation roller-way length 7.5m, in roller It is conveyed forward on road, microwave radiation regeneration is carried out during conveying, radiation frequency is 2450 MHz, and microwave irradiation power is 1200W, microwave irradiation time are controlled after 2min, micro wave regeneration, and micro wave regeneration glue is made;

Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control System is below 40 DEG C;

Step 5)Micro wave regeneration glue after cooling is refined, refines 15min, refining temperature is controlled at 40 DEG C, refining Film face afterwards is bright and clean, homogeneous, both obtains reclaimed rubber;

Step 6)Performance detection.According to national standard《Reclaimed rubber》GB/T 13460-2008 reclaimed rubbers test formulations successively will Various compounding agents, which are added in reclaimed rubber, to be kneaded, and then vulcanizes rubber compound, after parking for 24 hours, to above-mentioned reclaimed rubber, is carried out The test of physical mechanical property and process industrial art performance.

The performance test results show reclaimed rubber prepared by the embodiment, and tensile strength is up to 24.2 MPa, elongation at break It is 465%, Wei Shi plasticitys 0.42.It is good to show that the product of the invention obtained achieves the regeneration of waste old rubber powder Effect.

Embodiment 3

Each raw material and its mass fraction are:

Waste rubber powder 100.00

Softening agent pine tar 10.00

Multiplicity reactivation regenerative agent 420/M 0.60

Coupling agent KH570 1.50

The multiplicity reactivation regenerative agent 420/M is made of activating and regenerating agent 420 and activating and regenerating agent M, is matched somebody with somebody by quality Than for regenerative agent 510:Regenerative agent M=1:1 is formulated.

Its preparation method carries out as follows:

Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre of the % of elongation at break >=500 and/or Engineering tyre prepares the waste rubber powder of 30 mesh or so through crushing;

Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent pine tar, composite regenerant 420/M, Coupling agent KH570 carries out thin logical mixing 10min, and at 40 ± 5 DEG C, roll spacing is controlled in 0.8 ± 0.2mm for the temperature control of open mill, Bottom sheet after mixing, the sizing material thickness control of bottom sheet is in 1.0mm or so, obtained preliminary modified glue powder;

Step 3)By preliminary modified adhesive at 60 DEG C or so, uniformly launched with 2cm thickness onto roller conveyor, on roller-way It is mounted with high-frequency microwave radiation appliance, the speed that roller-way conveys forward is 4.5m/min, microwave radiation roller-way length 7.5m, in roller It is conveyed forward on road, microwave radiation regeneration is carried out during conveying, radiation frequency is 2450 MHz, and microwave irradiation power is 800W, microwave irradiation time are controlled after 2min, micro wave regeneration, and micro wave regeneration glue is made;

Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control System is below 40 DEG C;

Step 5)Micro wave regeneration glue after cooling is refined, refines 15min, refining temperature is controlled at 40 DEG C, refining Film face afterwards is bright and clean, homogeneous, both obtains reclaimed rubber;

Step 6)Performance detection.According to national standard《Reclaimed rubber》GB/T 13460-2008 reclaimed rubbers test formulations successively will Various compounding agents, which are added in reclaimed rubber, to be kneaded, and then vulcanizes rubber compound, after parking for 24 hours, to above-mentioned reclaimed rubber, is carried out The test of physical mechanical property and process industrial art performance.

The performance test results show reclaimed rubber prepared by the embodiment, and tensile strength is up to 24.6 MPa, elongation at break It is 460%, Wei Shi plasticitys 0.35.It is good to show that the product of the invention obtained achieves the regeneration of waste old rubber powder Effect.

Embodiment 4

Each raw material and its mass fraction are:

Waste rubber powder 100.00

Softening agent naphthenic oil 5.00

Multiplicity reactivation regenerative agent 420/M 0.70

Coupling agent KH570 1.00

The multiplicity reactivation regenerative agent 420/M is made of activating and regenerating agent 420 and activating and regenerating agent M, is matched somebody with somebody by quality Than for regenerative agent 420:Regenerative agent M=1:1 is formulated.

Its preparation method carries out as follows:

Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre of the % of elongation at break >=500 and/or Engineering tyre prepares the waste rubber powder of 20 mesh or so through crushing;

Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent naphthenic oil, composite regenerant 420/ M, coupling agent KH570, carry out thin logical mixing 10min, the temperature control of open mill at 40 ± 5 DEG C, roll spacing control 0.8 ± 0.2mm, bottom sheet after mixing, the sizing material thickness control of bottom sheet is in 1.0mm or so, obtained preliminary modified glue powder;

Step 3)By preliminary modified adhesive at 40 DEG C or so, uniformly launched with 2cm thickness onto roller conveyor, on roller-way It is mounted with high-frequency microwave radiation appliance, the speed that roller-way conveys forward is 4.5m/min, microwave radiation roller-way length 7.5m, in roller It is conveyed forward on road, microwave radiation regeneration is carried out during conveying, radiation frequency is 2450 MHz, and microwave irradiation power is 1000W, microwave irradiation time are controlled after 2min 30s, micro wave regeneration, and micro wave regeneration glue is made;

Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control System is below 40 DEG C;

Step 5)Micro wave regeneration glue after cooling is refined, refines 20min, refining temperature is controlled at 45 DEG C, refining Film face afterwards is bright and clean, homogeneous, both obtains reclaimed rubber;

Step 6)Performance detection.According to national standard《Reclaimed rubber》GB/T 13460-2008 reclaimed rubbers test formulations successively will Various compounding agents, which are added in reclaimed rubber, to be kneaded, and then vulcanizes rubber compound, after parking for 24 hours, to above-mentioned reclaimed rubber, is carried out The test of physical mechanical property and process industrial art performance.

The performance test results show reclaimed rubber prepared by the embodiment, and tensile strength is up to 25.6 MPa, elongation at break It is 450%, Wei Shi plasticitys 0.37.It is good to show that the product of the invention obtained achieves the regeneration of waste old rubber powder Effect.

Claims (1)

  1. A kind of 1. method that environment-friendly, high-intensity power tyre reclaim is prepared using microwave, it is characterised in that:Each raw material and its mass parts Number is:
    Waste rubber powder 100.00
    Softening agent naphthenic oil 5.00
    Multiplicity reactivation regenerative agent 420/M 0.70
    Coupling agent KH570 1.00
    The multiplicity reactivation regenerative agent 420/M is made of activating and regenerating agent 420 and activating and regenerating agent M, in mass ratio Regenerative agent 420:Regenerative agent M=1:1 is formulated;
    Its preparation method carries out as follows:
    Step 1)Screening:Using the MPa of tensile strength >=25, the waste and old high-capacity tyre and/or engineering of the % of elongation at break >=500 Tire prepares the waste rubber powder of 20 mesh through crushing;
    Step 2)Waste rubber powder is placed on a mill, sequentially adds softening agent naphthenic oil, composite regenerant 420/M is even Join agent KH570, carry out thin logical mixing 10min, at 40 ± 5 DEG C, roll spacing is controlled in 0.8 ± 0.2mm, is mixed for the temperature control of open mill Bottom sheet after refining, the sizing material thickness control of bottom sheet is in 1.0mm, obtained preliminary modified glue powder;
    Step 3)By preliminary modified adhesive at 40 DEG C, uniformly launched with 2cm thickness onto roller conveyor, height is mounted on roller-way Frequency microwave radiation device, the speed that roller-way conveys forward are 4.5m/min, microwave radiation roller-way length 7.5m, past on roller-way Preceding conveying, carries out microwave radiation regeneration during conveying, radiation frequency is 2450 MHz, microwave irradiation power 1000W, micro- Micro wave regeneration glue is made after 2min 30s, micro wave regeneration in wave radiation time control;
    Step 4)Micro wave regeneration glue is immediately entered into cooling device, is cooled down, micro wave regeneration glue after cooling, temperature control exists Less than 40 DEG C;
    Step 5)Micro wave regeneration glue after cooling is refined, refines 20min, refining temperature is controlled at 45 DEG C, after refining Film face is bright and clean, homogeneous, both obtains reclaimed rubber;
    Step 6)Performance detection.
CN201510759458.XA 2015-11-10 2015-11-10 A kind of method that environment-friendly, high-intensity power tyre reclaim is prepared using microwave CN105254919B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106146878A (en) * 2016-07-13 2016-11-23 四川省隆昌海燕橡胶有限公司 A kind of microwave technology produces the method for reclaimed rubber
CN107033421A (en) * 2016-11-23 2017-08-11 江西广安再生资源有限公司 Recovered rubber plastic particle
CN108373557A (en) * 2017-12-29 2018-08-07 天台坤荣橡胶有限公司 A kind of preparation method of high-performance reclaimed rubber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101045799A (en) * 2007-04-17 2007-10-03 福建省晋江市陈埭江头茂泰橡塑厂 Preparation method of reclaimed rubber using microwave desulfurization method
CN101831184A (en) * 2010-03-23 2010-09-15 江汉大学 Pitch modified from waste tire rubber powder and preparation method thereof
CN102634062A (en) * 2012-04-28 2012-08-15 徐州工业职业技术学院 Method for preparing high-tenacity reclaimed rubber by adding coupling agent
CN102634056A (en) * 2012-04-01 2012-08-15 徐州工业职业技术学院 Microwave radiation reclaiming method for environment-friendly high-strength reclaimed rubber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101045799A (en) * 2007-04-17 2007-10-03 福建省晋江市陈埭江头茂泰橡塑厂 Preparation method of reclaimed rubber using microwave desulfurization method
CN101831184A (en) * 2010-03-23 2010-09-15 江汉大学 Pitch modified from waste tire rubber powder and preparation method thereof
CN102634056A (en) * 2012-04-01 2012-08-15 徐州工业职业技术学院 Microwave radiation reclaiming method for environment-friendly high-strength reclaimed rubber
CN102634062A (en) * 2012-04-28 2012-08-15 徐州工业职业技术学院 Method for preparing high-tenacity reclaimed rubber by adding coupling agent

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