CN101456983B - Method for filling coal slack powder into polyolefin composite material - Google Patents
Method for filling coal slack powder into polyolefin composite material Download PDFInfo
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- CN101456983B CN101456983B CN200910058028XA CN200910058028A CN101456983B CN 101456983 B CN101456983 B CN 101456983B CN 200910058028X A CN200910058028X A CN 200910058028XA CN 200910058028 A CN200910058028 A CN 200910058028A CN 101456983 B CN101456983 B CN 101456983B
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Abstract
The invention discloses a preparation method for coal refuse powder padding polyolefine complex material. The method is that at first maleic anhydride graft polyolefine is dissolved by a hydrocarbon solvent to prepare a surface treatment agent and then the maleic anhydride graft polyolefine treatment agent is added into dried coal refuse powder according to weight ratio of 2 to 10:100, and then stirring and mixing with high speed are carried out, then plasticized polyolefine is added according to weight ratio of 10 to 80:100, then mixing under high temperature for 5 to 15 minutes is further carried out and then the temperature is reduced to room temperature and particle slicing is then carried out. Since maleic anhydride graft polyolefine surface treatment agent used by the invention is amphotericity giant molecules with responsivity, dispersed state of the coal refuse powder in the complex materials can be effectively improved and adjusted, thus improving interface combining ability, thus keeping relatively large adding amount of the coal refuse powder, meanwhile keeping fine processing performance and comprehensive pressure performance of the complex materials thereof. The preparation method for coal refuse powder padding polyolefine complex material has the advantages of simple technology, convenient operation and low energy consumption.
Description
Technical field
The invention belongs to the preparing technical field of colliery powder filled high polymer material formation matrix material, be specifically related to a kind of preparation method of filling coal slack powder into polyolefin matrix material.
Background technology
Filling is one of polyolefinic important modification means.Carry out compoundly by filling with polyolefine, can reduce cost greatly, significantly improve polyolefinic rigidity, thermotolerance and dimensional stability etc., give material new feature, enlarge its range of application.
Coal gangue is the rock with the coal association, is the solid waste that is separated in coal mining and dressing of coal by washing process, is present quantity discharged and the industrial solid castoff that causes the environmental pollution maximum, China to the utilization ratio of coal gangue less than 30%.Because coal gangue contains SiO
2, Al
2O
3With class carbon black material, and the surface has silicon hydroxyl (Si-OH), aluminium hydroxyl reactable groups such as (Al-OH), therefore provide favourable condition for it is used for chemical modification, coal gangue directly has been broken into the coal gangue powder as filler and is used for polymer composite broad application prospect and good social benefit are arranged.Though the source is abundant, cheap colliery powder is prepared into and fills the big polyolefin-based materials of consumption, have the moulding of being easy to, can process continuously, characteristics such as in light weight and cost is low, in petrochemical complex, coal mining, automobile and industry such as daily vast market is arranged, but a large amount of addings of colliery powder, as not adopting suitable means and measure it is handled, can cause it in material and goods, to reunite, the performance of grievous injury material and goods and quality.Therefore, be to solve filler interaction force between homodisperse and reinforcing filler and the matrix in matrix with the filling-modified polyolefinic technical problem underlying of colliery powder.
At present, the solution that adopts is earlier colliery powder to be calcined usually, with small molecules properties-correcting agent it is carried out surface modification then.In " applied research of silica-alumina carbon black (SAC) filled polypropylene " (" plastics science and technology " (2) P27-31 in 1991), just introduced the coupling agent modified method for preparing matrix material through incinerating colliery powder filled polypropylene of multiple small molecules of using as people such as Wang Jikui.Its effect is better than pearl filler, and the thermotolerance of matrix material and processing fluidity obviously improve, but intensity and toughness all reduce rapidly with the increase of filler.People such as He Suqin have introduced the employing melt-blending process and have prepared polymkeric substance/coal gangue matrix material in " coal gangue is filled the structure and the performance study of polyamide 6 composite material " (" Chinese plastics " (7) P35-39 in 2006), though adding on a small quantity without the incinerating coal gangue to make the intensity of material and modulus that to a certain degree increase is arranged, but the coal gangue addition increases to 25%, and tangible decline promptly appears in the intensity of material and modulus.People such as Li Ying have introduced the employing melt-blending process and have prepared polypropylene/colliery powder matrix material in " research of colliery powder filling modified polypropylene material " (" plastics " (5) P81-83 in 2007).This method be with the small molecules titanic acid ester to handling without the calcining coal gangue powder, more after a little while, the tensile strength and the shock strength of material have some improvement at consumption, but when the colliery powder consumption reaches 20%, tangible decline promptly appears in its tensile strength.And for example the patent No. is that " composite polyolefine material of filling with modified gangue powder and preparation method thereof " of ZL 200410081329.1 discloses with high-molecular weight polydiolefin rubber ring oxidation water-based emulsion and prepare composite polyolefine material as the surface treatment agent of coal gangue, this matrix material is with respect to the matrix material of the preparation of being untreated, its intensity, modulus and toughness improve to some extent, the processing fluidity of matrix material also increases simultaneously, and with respect to the matrix material through low molecular weight surfactant treatment agent Processing of Preparation, its over-all properties has clear improvement.But because this method use is the water-base emulsion treatment agent, thereby make the colliery powder water content after the processing big, and water more easily causes the structural changess such as bonding reunion of colliery powder intergranular, and then the performance of meeting remarkably influenced material, so need the colliery powder after handling is carried out strict drying to remove moisture, this makes operating process and complex process undoubtedly, and energy consumption increases.
Summary of the invention
The objective of the invention is deficiency at existing colliery powder processing mode and surface modification, provide a kind of raw material sources convenient, technology is simple, easy to operate, do not cause the high-molecular weight maleic anhydride graft polyolefine of environmental hazard to handle colliery powder, and with this colliery powder and the compound method for preparing matrix material of polyolefine.
The preparation method of filling coal slack powder into polyolefin matrix material provided by the invention, the processing step and the condition of this method are as follows:
(1) the maleic anhydride graft polyolefine being joined carbonatoms by weight 1: 1～2 is in 18～30 the varsol, and is heated to 100～130 ℃ and makes its dissolving make treatment agent;
(2) particle diameter 〉=300 purpose colliery powders are dried to water content≤0.1%;
(3) (1) step is prepared maleic anhydride graft polyolefine treatment agent adds in the hot coal spoil powder high-speed stirring mixing 7～10min while hot by weight 2～10: 100;
(4) earlier polyolefine was plastified 3～5 minutes for 160～240 ℃ in temperature, be 100: 10～80 to continue 160～240 ℃ of high-temperature mixings 5～15 minutes then by weight with polyolefine with the colliery powder handled, reducing to the room temperature pelletizing gets final product, polyolefine is preferably 100: 40 with the weight ratio of the colliery powder handled～and 60, or
(1) the maleic anhydride graft polyolefine being joined carbonatoms by weight 1: 1～2 is in 18～30 the varsol, and is heated to 100～130 ℃ and makes its dissolving make treatment agent;
(2) particle diameter 〉=300 purpose colliery powders are dried to water content≤0.1%;
(3) (1) step is prepared maleic anhydride graft polyolefine treatment agent adds in the hot coal spoil powder high-speed stirring mixing 7～10min while hot by weight 2～10: 100;
(4) earlier with polyolefine 160～240 ℃ of plasticizings of temperature 3～5 minutes, be 100: 80～100 to continue to reduce to the room temperature pelletizing and make masterbatch then by weight with polyolefine 160～240 ℃ of high-temperature mixings 5～15 minutes with the colliery powder of having handled;
(5) masterbatch and the polyolefine that makes mixed by weight 3～2:1 Xian ,, 160～240 ℃ of of of of of of of high-temperature of reduce to the room temperature pelletizing and get final product then at mixings.
The polyolefinic percentage of grafting of maleic anhydride graft used in the aforesaid method is 1～5%, and is preferred 1～3%, and number-average molecular weight is 1～30,000.
Used maleic anhydride graft polyolefine is maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene in the aforesaid method.
Used carbonatoms is that 18～30 varsol is whiteruss or industrial white oil in the aforesaid method.
The present invention has the following advantages:
1, because the maleic anhydride graft polyolefin surfaces treatment agent that the present invention adopts is reactive both sexes macromole, be the existing sucking action strong nonpolar segment similar to polyolefine, have with the hydroxyl isopolarity group interaction on colliery powder surface stronger again, even can react and reach the anhydride group of Chemical bond effect, thereby can effectively improve and regulate the dispersion state of colliery powder in composite polyolefine material, and improve the interface binding ability of colliery powder and matrix resin, thereby the processing characteristics and the comprehensive mechanical property of matrix material have been improved.
2, owing to the selected polyolefinic molecular weight of maleic anhydride graft of the present invention is big, and be industrialized product, also can conveniently make by oneself, thereby compare with the small molecules treatment agent, not only reduced loss, the toughness of matrix material has been strengthened to some extent, can avoid the phenomenon of material micromolecular migration and composite property deterioration of causing thus when life-time service composite material strength, and raw material is easy to get low price.
3, the maleic anhydride graft polyolefine of selecting for use owing to the present invention can be dissolved in the varsol preferably, thereby saved and used organic agent must remove the process of desolvating or using water base treatment agent dry to dewater, not only simplified technology, made things convenient for operation, reduced energy consumption, and little to environment and human influence.
4, because the colliery powder that the present invention handles with the maleic anhydride graft polyolefine can be without calcining, and all be directly to carry out next step operation while hot after the preparation of treatment agent, the surface treatment of colliery powder, thereby further reduced operation, and reduced energy consumption, production cost is reduced greatly.
5, because the maleic anhydride graft polyolefin surfaces treatment agent that the present invention uses has easy dispersion, consumption is few, the characteristics that mix, thereby the colliery powder of wherethrough reason can be dispersed in the polyolefin substrate preferably, and improve intensity, rigidity, toughness and the thermal characteristics of matrix material effectively.
6, because the existing sucking action strong nonpolar segment similar of maleic anhydride graft polyolefin surfaces treatment agent that the present invention uses to polyolefine; have with the hydroxyl isopolarity group interaction on colliery powder surface stronger again; can improve the interface binding ability of colliery powder and matrix resin; thereby when improving the colliery powder addition largely; influence to matrix material is little; this not only helps promoting the comprehensive utilization and the environment protection of coal gangue, also can reduce the cost of material by a relatively large margin.
7, the filling coal slack powder into polyolefin matrix material that after the maleic anhydride graft polyolefine is handled, makes for preparing by the inventive method, with respect to using be untreated colliery powder and the prepared matrix material of polyolefine, its tensile strength can improve 10～35%, elongation at break can improve 40～100%, impelling strength can improve more than 20%～80%, see accompanying drawing 1～3, the processing fluidity of matrix material also increases simultaneously.
Description of drawings
Fig. 1 is the matrix material of the embodiment of the invention 1,2,3,4,5 usefulness maleic anhydride graft polyolefine macromole modified gangue powder filled polyolefins preparation and the tensile strength and the colliery powder relation with contents graphic representation of the matrix material for preparing with the non-modified filling coal slack powder into polyolefin;
Fig. 2 is the matrix material of the embodiment of the invention 1,2,3,4,5 usefulness maleic anhydride graft polyolefine macromole modified gangue powder filled polyolefins preparation and the shock strength and the colliery powder relation with contents graphic representation of the matrix material for preparing with the non-modified filling coal slack powder into polyolefin;
Fig. 3 is the matrix material of the embodiment of the invention 1,2,3,4,5 usefulness maleic anhydride graft polyolefine macromole modified gangue powder filled polyolefins preparation and the elongation at break and the colliery powder relation with contents graphic representation of the matrix material for preparing with the non-modified filling coal slack powder into polyolefin.
Embodiment
Provide embodiment below so that the present invention will be described in more detail; it is important to point out that following examples can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field still belongs to protection scope of the present invention according to the invention described above content to some nonessential improvement and the adjustment that the present invention makes.
In addition, what deserves to be explained is, below tensile strength, elongation at break and the impelling strength of each embodiment gained matrix material be to record according to the method for GB/T 1040-1992, GB/T 1040-1992 and GB/T 1043-1993 defined respectively.
Embodiment 1
With percentage of grafting is 1%, and to be 30,000 maleic anhydride inoculated polypropylene join carbonatoms by weight 1: 1 ratio to number-average molecular weight is in 18～30 the whiteruss, and is heated to 100 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 2: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 7min with the maleic anhydride inoculated polypropylene treatment solution for preparing in maleic anhydride inoculated polypropylene dry and colliery powder weight ratio while hot subsequently.
Is 25 rev/mins with polypropylene granules at rotating speed, temperature is in 170 ℃ the rubber and plastic Banbury mixer, plastified 5 minutes, then the colliery powder that will handle by with polyacrylic weight ratio be that 10: 100 proportioning adds wherein, continuation is reduced to room temperature plastic breaker pelletizing at last 170 ℃ of following high-temperature mixings 7 minutes.The tensile strength of this matrix material is 24.2MPa, and impelling strength is 12.3MPa, and elongation at break is 190%.
With percentage of grafting is 1%, and to be 30,000 maleic anhydride grafted polyethylene join carbonatoms by weight 1: 1.2 ratio to number-average molecular weight is in 18～30 the industrial white oil, and is heated to 120 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 6: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 10min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
Is 30 rev/mins with polypropylene granules at rotating speed, temperature is in 180 ℃ the rubber and plastic Banbury mixer, plastified 3 minutes, then the colliery powder that will handle by with polyacrylic weight ratio be that 20: 100 proportioning adds wherein, continuation is reduced to room temperature plastic breaker pelletizing at last 180 ℃ of following high-temperature mixings 5 minutes.The tensile strength of this matrix material is 24.7MPa, and impelling strength is 10.6MPa, and elongation at break is 150%.
Embodiment 3
With percentage of grafting is 4%, and to be 1.1 ten thousand maleic anhydride grafted polyethylene join carbonatoms by weight 1: 1.5 ratio to number-average molecular weight is in 18～30 the whiteruss, and is heated to 110 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 10: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 10min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
Is 25 rev/mins with polypropylene granules at rotating speed, temperature is in 170 ℃ the rubber and plastic Banbury mixer, plastified 5 minutes, then the colliery powder that will handle by with polyacrylic weight ratio be that 80: 100 proportioning adds wherein, continuation is reduced to room temperature plastic breaker pelletizing at last 170 ℃ of following high-temperature mixings 15 minutes.The tensile strength of this matrix material is 23.5MPa, and impelling strength is 8.2MPa, and elongation at break is 40%.
Embodiment 4
With percentage of grafting is 3%, and to be 1.2 ten thousand maleic anhydride grafted polyethylene join carbonatoms by weight 1: 2 ratio to number-average molecular weight is in 18～30 the whiteruss, and is heated to 130 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 2: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 8min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
Is 30 rev/mins with polyethylene pellet at rotating speed, temperature is in two roller mills of 160 ℃ behind the plasticizing bag roller, with the colliery powder handled by with poly weight ratio be that 40: 100 proportioning adds wherein, continuation is reduced to room temperature plastic breaker pelletizing at last 160 ℃ of following high-temperature mixings 10 minutes.The tensile strength of this matrix material is 25.8MPa, and impelling strength is 9.4MPa, and elongation at break is 80%.
With percentage of grafting is 2%, and to be 1.8 ten thousand maleic anhydride grafted polyethylene join carbonatoms by weight 1: 1.6 ratio to number-average molecular weight is in 18～30 the industrial white oil, and is heated to 120 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 8: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 10min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
Is 35 rev/mins with polypropylene granules at rotating speed, temperature is in two roller mills of 170 ℃ behind the plasticizing bag roller, with the colliery powder handled by with polyacrylic weight ratio be that 60: 100 proportioning adds wherein, continuation is reduced to room temperature plastic breaker pelletizing at last 170 ℃ of following high-temperature mixings 10 minutes.The tensile strength of this matrix material is 25.5MPa, and impelling strength is 8.2MPa, and elongation at break is 60%.
With percentage of grafting is 5%, and to be 1.5 ten thousand maleic anhydride inoculated polypropylene join carbonatoms by weight 1: 1.8 ratio to number-average molecular weight is in 18～30 the industrial white oil, and is heated to 100 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 10: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 10min with the maleic anhydride inoculated polypropylene treatment solution for preparing in maleic anhydride inoculated polypropylene dry and colliery powder weight ratio while hot subsequently.
With polyethylene pellet and the colliery powder handled is that 100: 80 proportioning adds dual-screw-stem machine by weight, 70 rev/mins of rotating speeds, extrudes pelletizing under 160～240 ℃ of the temperature.The tensile strength of this matrix material is 23.1MPa, and impelling strength is 8.0MPa, and elongation at break is 45%.
Embodiment 7
With percentage of grafting is 3%, and to be 1.2 ten thousand maleic anhydride grafted polyethylene join carbonatoms by weight 1: 1.2 ratio to number-average molecular weight is in 18～30 the industrial white oil, and is heated to 110 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 6: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 9min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
With polypropylene granules and the colliery powder handled is that 100:80 proportioning adds dual-screw-stem machine by weight, 130 rev/mins of rotating speeds, 160～240 ℃ of of of of of of of the of extrudes under temperature, and pelletizing makes masterbatch; After this masterbatch and polypropylene mixed by weight 2.5:1 , add dual-screw-stem machine again, 160～240 ℃ of of of of of of of the of extrude pelletizing under temperature, 130 rev/mins of rotating speeds.The tensile strength of this matrix material is 25.8MPa, and impelling strength is 8.9MPa, and elongation at break is 72%.
With percentage of grafting is 2%, and to be 1.8 ten thousand maleic anhydride inoculated polypropylene join carbonatoms by weight 1: 2 ratio to number-average molecular weight is in 18～30 the whiteruss, and is heated to 130 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 10: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 10min with the maleic anhydride inoculated polypropylene treatment solution for preparing in maleic anhydride inoculated polypropylene dry and colliery powder weight ratio while hot subsequently.
Is 30 rev/mins with polyethylene pellet at rotating speed, 180 ℃ of of of of of of the rubber of temperature is in and plastic Banbury mixer, plastified 5 minutes, then the colliery powder that will handle by with polyacrylic weight ratio be that 100:100 proportioning adds wherein, 180 ℃ of of of of of of of following of continuation was high-temperature mixings, 8 minutes, reduce to room temperature plastic breaker pelletizing at last, pelletizing makes masterbatch; After this masterbatch and polyethylene mixed by weight 2:1 , add dual-screw-stem machine again, 160～240 ℃ of of of of of of of the of extrude pelletizing under temperature, 110 rev/mins of rotating speeds.The tensile strength of this matrix material is 25.6MPa, and impelling strength is 9.2MPa, and elongation at break is 78%.
Embodiment 9
With percentage of grafting is 5%, and to be 20,000 maleic anhydride grafted polyethylene join carbonatoms by weight 1: 2 ratio to number-average molecular weight is in 18～30 the industrial white oil, and is heated to 110 ℃ and makes its dissolving; Simultaneously particle diameter 〉=300 purpose colliery powders being stirred and are heated to 100 ℃ in homogenizer is dried to material moisture and is lower than 0.1%; Be that 10: 100 ratio adds in the colliery powder of high-speed stirring blending dispersion 7min with the maleic anhydride grafted polyethylene treatment solution for preparing in maleic anhydride grafted polyethylene dry and colliery powder weight ratio while hot subsequently.
With polyethylene pellet and the colliery powder handled is that 100:80 proportioning adds dual-screw-stem machine by weight, 100 rev/mins of rotating speeds, 160～240 ℃ of of of of of of of the of extrudes under temperature, and pelletizing makes masterbatch; After this masterbatch and polypropylene mixed by weight 3:1 , add dual-screw-stem machine again, 160～240 ℃ of of of of of of of the of extrude pelletizing under temperature, 100 rev/mins of rotating speeds.The tensile strength of this matrix material is 24.8MPa, and impelling strength is 8.1MPa, and elongation at break is 60%.
Claims (5)
1. the preparation method of a filling coal slack powder into polyolefin matrix material, the processing step and the condition of this method are as follows:
(1) the maleic anhydride graft polyolefine being joined carbonatoms by weight 1: 1～2 is in 18～30 the varsol, and is heated to 100～130 ℃ and makes its dissolving make treatment agent;
(2) particle diameter 〉=300 purpose colliery powders are dried to water content≤0.1%;
(3) (1) step is prepared maleic anhydride graft polyolefine treatment agent adds in the hot coal spoil powder high-speed stirring mixing 7～10min while hot by weight 2～10: 100;
(4) earlier with polyolefine 160～240 ℃ of plasticizings of temperature 3～5 minutes, be 100: 10～80 to continue to reduce to the room temperature pelletizing and get final product then by weight with polyolefine 160～240 ℃ of high-temperature mixings 5～15 minutes with the colliery powder of having handled, or
(1) the maleic anhydride graft polyolefine being joined carbonatoms by weight 1: 1～2 is in 18～30 the varsol, and is heated to 100～130 ℃ and makes its dissolving make treatment agent;
(2) particle diameter 〉=300 purpose colliery powders are dried to water content≤0.1%;
(3) (1) step is prepared maleic anhydride graft polyolefine treatment agent adds in the hot coal spoil powder high-speed stirring mixing 7～10min while hot by weight 2～10: 100;
(4) earlier with polyolefine 160～240 ℃ of plasticizings of temperature 3～5 minutes, be 100: 80～100 to continue to reduce to the room temperature pelletizing and make masterbatch then by weight with polyolefine 160～240 ℃ of high-temperature mixings 5～15 minutes with the colliery powder of having handled;
(5) be 3～2: 1 first premix by weight with masterbatch and the polyolefine that makes,, reduce to the room temperature pelletizing and get final product then at 160～240 ℃ of high-temperature mixings,
The polyolefinic percentage of grafting of wherein used maleic anhydride graft is 1～5%, and number-average molecular weight is 1～30,000; Used carbonatoms is that 18～30 varsol is whiteruss or industrial white oil.
2. the preparation method of filling coal slack powder into polyolefin matrix material according to claim 1, polyolefine is 100: 40～60 with the weight ratio of the colliery powder of having handled in (4) step of the preceding a kind of operation of this method.
3. the preparation method of filling coal slack powder into polyolefin matrix material according to claim 1 and 2, the polyolefinic percentage of grafting of maleic anhydride graft used in this method is 1～3%, number-average molecular weight is 1～30,000.
4. the preparation method of filling coal slack powder into polyolefin matrix material according to claim 1 and 2, used maleic anhydride graft polyolefine is maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene in this method.
5. the preparation method of filling coal slack powder into polyolefin matrix material according to claim 3, used maleic anhydride graft polyolefine is maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene in this method.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216479A1 (en) * | 1985-08-12 | 1987-04-01 | Ciba Specialty Chemicals Water Treatments Limited | Polymeric thickeners and their production |
| CN1074452A (en) * | 1992-01-15 | 1993-07-21 | 阎志平 | A kind of production method of plastics |
| CN1631956A (en) * | 2004-11-26 | 2005-06-29 | 四川大学 | Polyolefin composite material filled with modified gangue powder and method for preparing same |
-
2009
- 2009-01-05 CN CN200910058028XA patent/CN101456983B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216479A1 (en) * | 1985-08-12 | 1987-04-01 | Ciba Specialty Chemicals Water Treatments Limited | Polymeric thickeners and their production |
| CN1074452A (en) * | 1992-01-15 | 1993-07-21 | 阎志平 | A kind of production method of plastics |
| CN1631956A (en) * | 2004-11-26 | 2005-06-29 | 四川大学 | Polyolefin composite material filled with modified gangue powder and method for preparing same |
Non-Patent Citations (3)
| Title |
|---|
| Guan Gong et al.Mechanical properties and fracture behavior of injection and compression molded polypropylene/coal gangue powder composites with and without a polymeric coupling agent.《Composites: Part A: applied science and manufacturing》.2007,第38卷(第7期),第1684页2.1Materials. * |
| 刘颖.煤矸石填充热塑性聚合物复合材料的制备及断裂破坏行为研究.《中国优秀硕士学位论文全文数据库》.2008,(第5期),第57页4.2.3 PP-g-MA处理的煤矸石. * |
| 龚关.无机粒子填充聚丙烯复合材料的裂纹扩展和断裂行为研究.《中国优秀硕士学位论文全文数据库》.2006,(第1期),第47页3.1.3试样制备和第49页表3-4. * |
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