CN107118444A - A kind of shoddy and PP intermingling materials and preparation method thereof - Google Patents
A kind of shoddy and PP intermingling materials and preparation method thereof Download PDFInfo
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- CN107118444A CN107118444A CN201710491506.0A CN201710491506A CN107118444A CN 107118444 A CN107118444 A CN 107118444A CN 201710491506 A CN201710491506 A CN 201710491506A CN 107118444 A CN107118444 A CN 107118444A
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- 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
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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
- C08L2312/00—Crosslinking
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Abstract
The invention discloses a kind of shoddy and PP intermingling materials, including shoddy, PP and auxiliary agent, the mass percent of the shoddy is 10 50%.The preparation method of described shoddy and PP intermingling materials, comprises the following steps：(1) prepare；(2) high temperature banburying；(3) compression molding.Shoddy and PP are blended the present invention, so that a kind of technique is simple, lower-cost mode, obtain good mechanical properties, shoddy/PP intermingling materials that tool has significant practical applications, and expand the application of shoddy, and improve the utilization ratio of shoddy.The raw material that the present invention is used are shoddy and PP, shoddy wide material sources, and it is effective utilization to shoddy to prepare intermingling material using it.PP fluidity of molten is good, it is easy to process.Present invention process process is simple and safe, it is easy to accomplish, cost is relatively low, process clean environment firendly, and processing is needed the problems such as no waste mine, waste gas, waste water.
Description
Technical field
The present invention relates to the recycling field of waste old, specifically a kind of shoddy and PP intermingling materials and its preparation
Method.
Background technology
The rubber that class finds and used earliest is natural rubber, and it is that one kind is extracted and processed from natural production glue class plant
The rubber being made, the appearance of natural rubber provides the foundation source for the production of rubber product.Elastomeric material rubber performance is excellent,
The elastomeric material performance synthesized especially by new technology is more preferably, deep to be favored by people, current rubber be mainly used in automobile,
In terms of communication, medical treatment, finishing, building and daily necessities, it, which gives people to have lived, brings convenience., American in 1839
C.Goodyear has invented the vulcanization of rubber, becomes the important raw material of industry.1888, British J.B.Dunlop was invented
Pneumatic tire, promotes automobile tire industry to develop by leaps and bounds, thus rubber usage amount is sharply increased.Rubber Industry develop rapidly for
Human lives bring unlimited possibility, and extremely important effect is played in economic development, but waste old is but thrown aside but
Great pollution is brought to natural environment, high resistance is brought to economize on resources, life is given people and causes many puzzlements.These give up
Old rubber is referred to as " black pollution ", because its internal crosslinking degree is high, is difficult degraded under field conditions (factors), non-fusible also insoluble
Solution, has a strong impact on natural environment and and human survival.From the point of view of resource regeneration, economic circulation and environmental protection, reclaim
It is the key point for solving this problem using waste old.
The world today, resource is nervous, and in rubber-consumer amount, China ranks first place throughout the year, but the rubber sources of China
Very deficient, dependence on external supply degree reaches more than 70%, in the environment of natural resources is increasingly reduced, and how to solve waste old band
" black pollution " problem come is extremely urgent already.Topmost waste old is exactly junked tire, according to statistics, in the world
Nearly 1,500,000,000 waste tires are inside produced every year, and speed is constantly increasing.Damaged tire be a kind of difficulty melt, organic high score of difficult degradation
Elastic body, is embedded in underground centuries and does not change, polluted underground water.No matter these " black garbages ", which use, is stacked, fills or burn
The method processing of burning will all bring environmental pollution, land occupation resource, and easily grow mosquito, spread disease.
Processing mode to junked tire most begins by the modes such as stacking, burial and burning, but people just recognize quickly
The harmfulness of these methods is known, then new method is continually developed out by the mankind.The vulcanization rubber of American invention in 1846
Glue boils the processing method for carrying out desulfurization with lime chloride solution, rear to engender acid system, alkaline process again, and water oil occurs in nineteen forty-two
Method technique, nineteen twenty-seven, a company in the U.S. was made by the method using dry ice as refrigerant crushing rubber, pastel, stickies
Rubber powder, nineteen sixty, the U.S. proposed to cross hot vulcanization process realization using the device of liquid nitrogen frozen crushing rubber, anglist in 1907
Tyre rebuilding.Develop into today, the recoverying and utilizing method of waste old respectively has quality, be divided into using form and directly utilized and indirect
Utilize：
(1) directly utilize：
Old tire is renovated：Under conditions of use and maintenance is good, a tires can be renovated repeatedly, often be renovated once,
The service life equivalent to new tire 60%~90% can be regained.By being repeatedly remoulded, the entire life of tire can be made to extend l
~2 times.L5%~30% of its cost of old tire equivalent to one new tire of production is renovated, price is but only new tire
20%~50%；
Directly transform：Waste old such as tire can be used for cladding guardrail after transformation, serve as road sign and buoy etc.,
But this method consumption is less.
(2) indirect utilization：
Reclaimed rubber：The production method of reclaimed rubber is that rubber is milled into particle, then adds water and chemical substance etc.
Its elasticity is eliminated, plasticity is made it have, then under the conditions of certain temperature and pressure, it is returned to energy using mechanical presses
The state of enough revulcanizations, so as to directly utilize.The use of reclaimed rubber can reduce product cost, weak point be technique more
Complexity, and energy consumption is higher, easily pollutes environment.
Rubber powder：It is the current major way for reclaiming rubber that scrap rubber is processed into rubber powder, and preparation method has normal temperature crushing up,
Low-temperature grinding method and chemical pulverization.
Heat utilization：Heat utilization is to use scrap rubber directly as fuel, using its high heat, can reclaim the pairs such as carbon black
Product, but pollute very serious, it is unworthy advocating.
Thermal cracking：Waste old is placed in inert gas environment and thermally decomposed, recyclable carbon black, gas and oil product etc., this
The method of kind can give full play to the value of scrap rubber, better economic benefit, and clean environment firendly, but energy consumption is higher, no
It is adapted to large-scale production.
Low-temperature catalytic pyrolysis：Low-temperature catalytic pyrolysis are different from thermal cracking, and this method is under cryogenic, to utilize catalysis
Agent reaches the purpose of cracking waste old, and the rate of recovery of low-temperature catalytic pyrolysis is very high, and gas is few, oil quality and carbon black quality
It is higher.
Because the development of auto industry, the mankind to the research of rubber and using be it is unprecedented, also Just because of this, waste and old wheel
The increasingly accumulation of tire brings great puzzlement to the world.According to statistics, junked tire burden has reached 300,000,000 surprising in the world
Number, and its growth rate is up to 100,000,000/year.Junked tire reclaims profit as topmost role in waste old to it
With, be countries in the world realize economic development and resource circulation utilization concern where.
Because rubber sources is very short, the development experience of the recycling of waste old reclaimed rubber, rubber powder and useless
A series of stages such as old tire renovation.Up to the present, the U.S., Japan, Canada and some European countries utilize waste old
Mainly have four kinds of modes：One is used as fuel power generation function, and two be old tire renovation, and three be that chemical cracking reclaims fuel oil and charcoal
Black, four be production rubber powder.Wherein production rubber powder technology content is higher, and market potential is larger, and the value created every year is at 500,000,000 dollars
Left and right.
In developed country, their not only developing high-teches, and increasingly pay attention to the utilization and exploitation of junked tire.Than
Some countries of such as U.S., Canada and Finland, the recycling to junked tire, they not only formulate relevant law, establishment
Specialized agency, and implement to encourage in policy and subsidize, while junked tire recycling problem is solved, some countries
Even employment is also promoted well.
In China, the major way that junked tire is reclaimed has directly transformation, old tire renovation, thermal decomposition, production reclaimed rubber
With the production mode such as rubber powder.
Compared with developed countries, in the utilization of junked tire, there are many deficiencies in China, for example, recycle low, raw
Industry battalion small scale, enterprise's taxes height, deficiency in economic performance etc..But technically, China does not only exist in world lead level, and
And production equipment only has 1/3 of import equipment or so.There is related data to show, in the processing of junked tire, the U.S. in 1998
Junked tire as fuel has 67.6%, has 9.44% for burial.2002, in EU countries with both modes
The junked tire of reason is respectively 21% and 37%.Because the processing mode of both junked tires is both unfavorable for economizing on resources,
It is unfavorable for environmental protection, up to the present, U.S. major part state and EU countries have prohibited burial to junked tire, and
In China, junked tire is buried and the situation as fuel does not almost occur.
With industrial expansion, waste old produce " black pollution " is to plant growth, human lives and economizes on resources
In terms of bring great puzzlement, and the generation of rubber powder is not only effective processing to waste old, and can realize resource
Cycling and reutilization.Rubber powder low production cost, its particle size determines its purposes, therefore can be widely applied to production life
It is living.
Recycling on rubber research both domestic and external has a lot, and the remaining beautiful jade of South China Science ＆ Engineering University is by directly kneading
Method is prepared for rubber powder of good performance/TPV intermingling materials, and improves the comprehensive of intermingling material by adding bulking agent etc.
Energy.The method that Kaynak etc. coats shoddy surface using silane coupler improves the compatibility of epoxy resin and rubber powder, significantly
Improve fracture toughness.Lee etc. is modified with acrylamide to shoddy surface, under the conditions of ultraviolet light, is prepared for
WRP/PP blends, compared with unmodified system, its tensile property is greatly improved.Li Yan etc. is using oxygen plasma to scrap rubber material
Surface is modified, and effectively increases the mechanical property of PVC/ rubber powders.
Production rubber powder is one of Main Means that current waste old is recycled, and this mode can realize resource reclaim
Utilize, and can environmental protection.The existing research that elastomer and PP are blended is very deep, but with the development of society,
It is more and more to the requirement in terms of material property, these requirements are met, more gos deep into comprehensively or more novel experiment is ground
Study carefully needs to be put into practice.
Different rubber powders is blended with PP, and performance difference may be very big.It is compatible because shoddy and PP interface binding powers are weaker
Property is poor, therefore often needs to obtain valuable intermingling material by modification technology, but existing modification technology is easy to
The rising of processing cost is caused, this makes it be difficult to industrial applications.
The content of the invention
It is an object of the invention to provide a kind of shoddy and PP intermingling materials and preparation method thereof, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of shoddy and PP intermingling materials, including shoddy, PP and auxiliary agent, the mass percent of the shoddy is
10-50%.
It is used as further scheme of the invention：The mass percent of the shoddy is 10-20%.
It is used as further scheme of the invention：The auxiliary agent includes DOP, barium stearate and phenolic resin.
It is used as further scheme of the invention：The shoddy is that waste old is formed by crushing.
It is used as further scheme of the invention：The shoddy is 50-200 mesh.
It is used as further scheme of the invention：The preparation method of described shoddy and PP intermingling materials, including it is following
Step：
(1) prepare：The accurate shoddy and PP for weighing different quality ratio, shoddy accounting is 10-50%, and addition is helped
Agent, it is standby after being well mixed in being stirred under normal temperature；
(2) high temperature banburying：7min is blended in said mixture in banbury, banbury temperature is 180 DEG C, and rotating speed is
36r/min；Blend is taken out after the completion of blending, room temperature is cooled to, then graininess is ground into pulverizer, drying is then placed into
24h, 80 DEG C of drying temperature are dried in machine；
(3) compression molding：Dried mixture is fitted into mould, preheated in the full-automatic tablet press machines of ZG-50
10min, preheating pressure 0MPa, 210 DEG C of temperature；First it is vented 10 times, then pressurize 20min, dwell pressure 100MPa；It is rapid again to turn
Move to and sizing is cold-pressed on cold press, cold pressing pressure 10MPa is cooled to after room temperature and takes out finished product.
Rubber powder is a kind of high polymer material with cross-linked structure, remains the characteristics of rubber high resiliency and high energy storage,
Principal character with powder body material.The shoddy surface that crumb rubber is made after broken is inert, be one kind by rubber
The material containing cross-linked structure of glue, carbon black and other auxiliary agents composition.
The mode of production of rubber powder is mainly crushing, and the method for crushing includes normal temperature crushing up, low-temperature grinding method and chemical powder
Broken method.Normal temperature crushing up is the method crushed with pulverizer to waste old, and this method technique is simple, energy consumption and cost all compared with
It is low, therefore application is relatively broad.Low-temperature grinding method is that rubber is cooled to below glass transition temperature using media such as liquid nitrogen,
Again with the relatively low breaking method that power carries out mechanical crushing of crushing, this method saves power, and production efficiency is high, product quality
Also it is relatively good.The rubber powder fine size of chemical pulverization preparation, performance are good, but cost is higher, and technique is also more complicated, it is difficult to big rule
Mould is produced.
Rubber powder is according to the thick rubber powder that is divided into of granularity rubber powder, thin rubber powder, micro glue powder, ultra tiny rubber powder, its granularity difference hair
The function of waving is just different, and application is also different, classifys by particle size, the applicable cases such as table 1 of rubber powder：
The different-grain diameter rubber powder application of table 1
In spent high molecular material, scrap rubber substantial amounts occupy second, fully carry out the recycling to scrap rubber
It is the task of top priority.The recoverying and utilizing method of scrap rubber is varied, but from the point of view of the eye of sustainable development, scrap rubber manufacture glue
Powder should be predominant methods.One be shoddy size distribution extensively, which dictates that its application is also extremely extensive；Two be scrap rubber
Powder it is functional, with high resiliency and high tenacity, this exactly its important feature；Three be produce rubber powder technique it is simple, can be with
The resources such as solid residue are made full use of, production process does not produce the pollution environment such as waste gas, waste water；Four be that production equipment is ripe, can
Rapid, high volume is produced；Five be that rubber powder is widely used, is even more to coordinate well with other materials by modified rubber powder, production
Such as modified pitch material of good performance, this application for causing rubber powder and DEVELOPMENT PROSPECT are all very good.
Polypropylene has many good characteristics, such as mechanical property is good, resistant to chemical etching, good insulating, water absorption rate are low,
But its weak point is oxidizable degraded under high temperature.
Polypropylene has higher crystallinity, and its impact resistance is also poor, therefore is commonly used to be blended with other materials, warp
Product of good performance is made in the modified and addition class material of solubilizer one.
Compared with prior art, the beneficial effects of the invention are as follows：Shoddy and PP are blended the present invention, with a kind of letter of technique
Single, lower-cost mode, results in good mechanical properties, has the shoddy/PP intermingling materials having significant practical applications, expand
The application of big shoddy, and improve the utilization ratio of shoddy.The raw material that the present invention is used are shoddy and PP, are given up
Rubber powder wide material sources, it is effective utilization to shoddy to prepare intermingling material using it.PP fluidity of molten is good, it is easy to plus
Work.Present invention process process is simple and safe, it is easy to accomplish, cost is relatively low, process clean environment firendly, no waste mine, waste gas, waste water
The problems such as need processing.
Brief description of the drawings
Fig. 1 is shoddy and the flow chart of the preparation method of PP intermingling materials.
Fig. 2 is shoddy, PP and shoddy/PP intermingling materials in shoddy and PP intermingling materials and preparation method thereof
FT-IR comparison diagrams.
Fig. 3 is the elongation at break and tensile strength of shoddy and the material of PP intermingling materials.
Fig. 4 is the impact strength of shoddy and PP intermingling materials.
Fig. 5 is the SEM photograph a of shoddy and the section of PP intermingling materials.
Fig. 6 is the SEM photograph b of shoddy and the section of PP intermingling materials.
Fig. 7 is the SEM photograph c of shoddy and the section of PP intermingling materials.
Fig. 8 is the SEM photograph d of shoddy and the section of PP intermingling materials.
Fig. 9 is the SEM photograph e of shoddy and the section of PP intermingling materials.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1~9, the embodiment of the present invention, a kind of shoddy and PP intermingling materials, including shoddy, PP and help
Agent, the mass percent of the shoddy is 10-50%.
The preparation method of a kind of shoddy and PP intermingling materials, comprises the following steps：
(1) prepare：The accurate shoddy and PP for weighing different quality ratio, respectively 10%, 20%, 30%, 40%,
50%, auxiliary agent is added, it is standby after being well mixed in being stirred under normal temperature；
(2) high temperature banburying：7min is blended in said mixture in banbury, banbury temperature is 180 DEG C, and rotating speed is
36r/min；Blend is taken out after the completion of blending, room temperature is cooled to, then graininess is ground into pulverizer, drying is then placed into
24h, 80 DEG C of drying temperature are dried in machine；
(3) compression molding：Dried mixture is fitted into mould, preheated in the full-automatic tablet press machines of ZG-50
10min, preheating pressure 0MPa, 210 DEG C of temperature；First it is vented 10 times, then pressurize 20min, dwell pressure 100MPa；It is rapid again to turn
Move to and sizing is cold-pressed on cold press, cold pressing pressure 10MPa is cooled to after room temperature and takes out finished product.
Experiment
First, shoddy, PP and shoddy/PP are blended respectively using Nicolet iS50 FTISs
Material is tested, and gathers 4000-400cm-1Scope collection of illustrative plates, passes through FT-IR map analysis shoddy/PP intermingling material internal junctions
Structure.The shoddy that the present embodiment is used is the waste rubber powder that particle diameter is 0.125mm (120 mesh), and Fig. 2 is shoddy, PP and given up
The FT-IR comparison diagrams of rubber powder/PP intermingling materials, from figure 2 it can be seen that compared with simple shoddy and PP materials, scrap rubber
Without there is obvious new feature peak on the image of powder/PP intermingling materials, this explanation shoddy is not changed with PP blendings
Be cross-linked to form new chemical bond, and the two is simple physical blending.
2nd, shoddy/PP blend battens are produced into " V " type breach using breach sampling machine, gap width is 6.5mm,
Impact strength is tested with GT-7045-HML numerical digits shock machine, from the pendulum that specification is 3.5V-2.75J, test sample sample
Bar every group five, test result is averaged.
In table 2, it is shown that shoddy/PP blends elongation at break and the tensile strength data (bag that experiment is measured
Include blank assay), as can be seen from the table, compared with pure scrap rubber powder material and pure PP materials, shoddy/PP intermingling materials
Elongation at break decline to a great extent., may the two knot it is recognised that shoddy and PP are only physical blendings from the conclusion of table 2
Conjunction property is not very good.Because shoddy is very big with both PP surface property differences, scrap rubber powder particles have stable cross-linked network
Shape structure, surface is inert, and PP is relatively stable chain structure, in the case where not being modified to the two surface, scrap rubber
Powder phase and PP phase two-phase interface tension force are very big, it is difficult to adhere to, it is difficult to compatible, the two associativity is poor, so shoddy/PP blendings
The elongation at break of material will be very low.In addition, from the point of view of from table 2, the tensile strength of pure scrap rubber powder material only has 2.112MPa,
And the tensile strength of shoddy/PP intermingling materials has been up to 16.51MPa, has and be greatly improved very much.
The elongation at break and tensile strength of 2 shoddies of table/PP intermingling materials
What Fig. 3 was represented is the increase shoddy/PP intermingling materials elongation at break and tensile strength with scrap rubber powder content
Change, it can be seen that increasing with scrap rubber powder content, the elongation at break of shoddy/PP intermingling materials is maximum
20.436%, minimum 14.706%, amplitude of variation very little, within the scope of basic experimental bias.This explanation shoddy contains
Influence very little of the increase of amount to the elongation at break of shoddy/PP intermingling materials.It can also be seen that with scrap rubber powder content
Increase, the tensile strength of shoddy/PP intermingling materials is presented reduces trend by a small margin, is 10%~20% stretching in rubber powder consumption
Maximum intensity.Because material of the shoddy as vulcanization crosslinking, not remelted in process, in material internal
Tend to aggregation, so as to form isolated phase so that the continuity of material is deteriorated.
Table 3 is the impact strength (including blank assay) for shoddy/PP intermingling materials that experiment is measured, can from table
Go out, the impact strength of pure scrap rubber powder material only has extremely low 0.686MPa, and the impact strength of shoddy/PP intermingling materials is far high
In this value, up to 4.363MPa, impact strength substantially increases.
The impact strength of 3 rubber powders of table/PP intermingling materials
Fig. 4 is the change of increase shoddy/PP intermingling material impact strengths with scrap rubber powder content, can from figure
Go out, with the increase of scrap rubber powder content, the impact strength of shoddy/PP intermingling materials is reduced to 3.345kJ/ from 4.363kJ/m2
M2, reduces amplitude very little.The presence that the range of decrease of this very little is primarily due to rubber powder have impact on dividing for PP particles to a certain extent
Dissipate, decline the regularity of whole material, rubber powder content is more, it is this more to have this tendency.When rubber powder content is 10%, punching
Hit intensity is maximum.
3rd, shoddy/PP blend battens are placed in liquid nitrogen and cooled down, then by batten brittle failure.In 20 DEG C of room temperature conditions
Under, metal spraying processing is carried out to brittle failure sample section with vacuum evaporator, and cross-section morphology is observed with SEM.
The SEM photograph that shoddy/PP intermingling materials section amplifies 1000 times is shown in Fig. 5-9.In Fig. 5, brittle failure face ten
Light splitting is slided, and without defect and layering, is distinguished without obvious interface, two-phase is disperseed more uniform.In Fig. 6, brittle failure face does not have defect,
Without projection particle, there is less step in brittle failure face, and two-phase dispersiveness becomes weaker.In Fig. 7, crisp cross-sectional face does not have particle
, there is a small amount of pit-hole in thing, brittle failure face raised step thickness increase.In Fig. 8, there is a small amount of shoddy aggregate in crisp cross-sectional face
Grain, shoddy diminishes with PP interfaces decentralization.In Fig. 9, crisp cross-sectional face has the shoddy aggregate of more projection and lacked a little
Fall into, section is simultaneously rough, and continuity is not fine, and two-phase dispersiveness is very poor.On the whole, scrap rubber powder content is more, more unfavorable
It is uniform in two-phase mixtures.
It is known that from experimental section of the present invention：
(1) FT-IR results are shown, do not produce chemical crosslinking in shoddy/PP intermingling materials, form new chemistry
Key, the two is simple physical blending.SEM photograph shows that scrap rubber powder content is more in shoddy/PP intermingling materials, scrap rubber
Powder and PP dispersivenesses are poorer.
(2) tension test is found, although the elongation at break of pure scrap rubber powder material is not low, but its tensile strength is extremely low,
Shoddy and PP blendings can be significantly improved into its tensile strength.When rubber powder content is 10%~20%, tensile strength is maximum.
(3) Impulse Test Result is shown, the impact strength of pure scrap rubber powder material is extremely low, but after shoddy and PP blendings significantly
Improve its impact strength.When rubber powder content is 10%, impact strength is maximum.
It is comprehensive to understand, the extremely low shoddy of intensity and PP are subjected to simple physical blending, its intensity can be significantly improved,
Become so that the shoddy being used alone originally never has significant practical applications with actual application value.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (6)
1. a kind of shoddy and PP intermingling materials, it is characterised in that including shoddy, PP and auxiliary agent, the quality of the shoddy
Percentage is 10-50%.
2. shoddy according to claim 1 and PP intermingling materials, it is characterised in that the mass percent of the shoddy
For 10-20%.
3. shoddy according to claim 1 and PP intermingling materials, it is characterised in that the auxiliary agent includes DOP, stearic acid
Barium and phenolic resin.
4. shoddy according to claim 1 or 2 and PP intermingling materials, it is characterised in that the shoddy is waste and old rubber
Glue is formed by crushing.
5. shoddy according to claim 1 or 2 and PP intermingling materials, it is characterised in that the shoddy is 50-200
Mesh.
6. the preparation method of a kind of shoddy as described in claim 1-5 is any and PP intermingling materials, it is characterised in that including
Following steps：
(1) prepare：The accurate shoddy and PP for weighing different quality ratio, shoddy accounting is 10-50%, adds auxiliary agent, in
Stirred under normal temperature, it is standby after being well mixed；
(2) high temperature banburying：7min is blended in said mixture in banbury, banbury temperature is 180 DEG C, and rotating speed is 36r/
min；Blend is taken out after the completion of blending, room temperature is cooled to, then graininess is ground into pulverizer, is then placed into drying machine
Dry 24h, 80 DEG C of drying temperature；
(3) compression molding：Dried mixture is fitted into mould, 10min is preheated in the full-automatic tablet press machines of ZG-50, in advance
Thermal pressure 0MPa, 210 DEG C of temperature；First it is vented 10 times, then pressurize 20min, dwell pressure 100MPa；Cold pressing is transferred quickly to again
Sizing is cold-pressed on machine, cold pressing pressure 10MPa is cooled to after room temperature and takes out finished product.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357004A (en) * | 2018-02-22 | 2018-08-03 | 青岛科技大学 | A kind of preparation method and application of gutta-percha shape-memory material |
| CN110901124A (en) * | 2018-09-18 | 2020-03-24 | 北京斯科瑞新材料科技股份有限公司 | Preparation of environment-friendly rubber floor mat |
| CN112203818A (en) * | 2018-04-09 | 2021-01-08 | 芝浦机械株式会社 | Kneading method and kneaded product |
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| CN102634121A (en) * | 2012-04-25 | 2012-08-15 | 金陵科技学院 | Preparation technology of butyl reclaimed rubber thermoplastic elastomer |
| CN106065115A (en) * | 2016-05-31 | 2016-11-02 | 漳州仂元工业有限公司 | A kind of water saving osmos tube and manufacture method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102634121A (en) * | 2012-04-25 | 2012-08-15 | 金陵科技学院 | Preparation technology of butyl reclaimed rubber thermoplastic elastomer |
| CN106065115A (en) * | 2016-05-31 | 2016-11-02 | 漳州仂元工业有限公司 | A kind of water saving osmos tube and manufacture method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357004A (en) * | 2018-02-22 | 2018-08-03 | 青岛科技大学 | A kind of preparation method and application of gutta-percha shape-memory material |
| CN112203818A (en) * | 2018-04-09 | 2021-01-08 | 芝浦机械株式会社 | Kneading method and kneaded product |
| CN112203818B (en) * | 2018-04-09 | 2023-02-17 | 芝浦机械株式会社 | Kneading method and kneaded product |
| CN110901124A (en) * | 2018-09-18 | 2020-03-24 | 北京斯科瑞新材料科技股份有限公司 | Preparation of environment-friendly rubber floor mat |
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