CN105733063A - Method for preparing pulp enhanced polyolefin composite material - Google Patents
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- CN105733063A CN105733063A CN201610252011.8A CN201610252011A CN105733063A CN 105733063 A CN105733063 A CN 105733063A CN 201610252011 A CN201610252011 A CN 201610252011A CN 105733063 A CN105733063 A CN 105733063A
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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
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- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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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
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The invention discloses a method for preparing a pulp enhanced polyolefin composite material to solve the problems that during pulp enhanced polyolefin composite material preparation in the prior art, fiber is hard to disperse, dry pulp fiber is hard to feed, and pulp and polyolefin resin bonding strength is poor.The method comprises the steps of weighing, mixing and pulping, hot-pressing and melt-mixing, and machine-shaping.The method is used for pulp enhanced polyolefin.
Description
Technical field
The present invention relates to the preparation method that a kind of paper pulp strengthens composite polyolefine material.
Background technology
Along with the exhaustion of energy crisis, petroleum resources, the resource of this kind of non-renewable and extremely difficult natural degradation of polyolefin how is efficiently utilized to become epoch important topic.At present, utilizing various fiber reinforcement polyolefin is a big research direction, common fortifying fibre has carbon fiber, aramid fiber, glass fibre, basalt fibre, natural fiber (such as cotton fiber, Folium Agaves Sisalanae, agricultural crop straw) etc., and wherein natural fiber has unique advantage because of its recyclability, biodegradability, biocompatibility and safety.
Research finds along with the reduction of fiber size, the increase of draw ratio, and fiber presents the performance being different from general fibre.Compared with common wood powder, paper pulp fiber has higher draw ratio, higher intensity, and chemical constituent and can adjust according to demand, can as excellent polyolefin reinforcing material.Paper pulp fiber/composite polyolefine material the production method reported at present makes it be unsuitable for industrialization owing to there are some problems, mostly still in experimental stage.Existing paper pulp strengthens composite polyolefine material and adopts melted dry pigmentation to have a disadvantage in that (1) is due to the existence of a large amount of polar hydroxyl groups of cellulose surface, pulp dryer process is very easily reunited, fiber after reunion mixes with vistanex, the composite prepared is formed isolated island formula effect, fails to embody the reinforced effects that paper pulp is real；(2) dry paper pulp accumulation density is little, there is density variation with interlaminar resin, not easily Homogeneous phase mixing, and is easy to put up a bridge in feeding process, causes feeding extremely difficult, is unfavorable for that what produce is smoothed out.Hygrometric state mixing there is also some shortcomings: (3) hygrometric state fiber is made directly twin screw mixing, is not easily thoroughly discharged by moisture；(4) after first making slab, dry employing is hot-forming, is not suitable for extruding continuous production.
Summary of the invention
The present invention is the problem strengthening fiber difficulty dispersion in composite polyolefine material preparation process, dry state paper pulp fiber feeding difficulty and paper pulp and vistanex poor bonding strength in order to solve existing paper pulp, and the preparation method that a kind of paper pulp enhancing composite polyolefine material is provided.
A kind of paper pulp of the present invention strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, the Tissuemat E of the paper pulp of 10～60 parts, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and 1～3 part is weighed by weight；Described polyolefin is vistanex pellet or polyolefine fiber；
The paper pulp of 10～60 parts two, step one weighed, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and the Tissuemat E of 1～3 part mix, then add water to leach after putting into the 30min～90min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 5mm～15mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, hot pressing 4min～10min when temperature is 80 DEG C～150 DEG C and pressure is 5MPa～10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is processed molding, obtains paper pulp and strengthens composite polyolefine material.
Beneficial effect: the present invention, with simple and convenient method Homogeneous phase mixing paper pulp fiber and polyolefin, eliminates island phenomenon, prepares high-performance composite materials；Solve dry state paper pulp fiber problem of feeding difficulty in conventional extruding pelletization process in a simple way.Reduce moisture simultaneously, improve the adhesion of paper pulp fiber and plastic matrix, improve the performance of composite.
Pulping process and composite are produced and combine by the present invention, by mixed for paper pulp fiber and polyolefin resin particles (or resin fibre) uniformly ginseng in the process of making beating, beating degree can be regulated as required to change the draw ratio of fiber to prepare the paper pulp fiber/polyolefin composite wood of different performance.
Detailed description of the invention
Detailed description of the invention one: present embodiment paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, the Tissuemat E of the paper pulp of 10～60 parts, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and 1～3 part is weighed by weight；Described polyolefin is vistanex pellet or polyolefine fiber；
The paper pulp of 10～60 parts two, step one weighed, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and the Tissuemat E of 1～3 part mix, then add water to leach after putting into the 30min～90min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 5mm～15mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, hot pressing 4min～10min when temperature is 80 DEG C～150 DEG C and pressure is 5MPa～10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is processed molding, obtains paper pulp and strengthens composite polyolefine material.
Paper pulp described in present embodiment includes broad-leaved slurry and needle slurry.The mixture shredded in present embodiment is after preliminary hot pressing, and the mixture density of lamellar is far longer than fiber bulk density, the problem solving dry state paper pulp fiber feeding, it is adaptable to conventional wood and plastic composite extrusion production equipment.
Present embodiment removes moisture before double-screw melt blending, improves the bond strength of paper pulp and vistanex.
Detailed description of the invention two: present embodiment and detailed description of the invention one the difference is that: step one weighs the Tissuemat E of the paper pulp of 50 parts, the polyolefin of 50 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part by weight.Other are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two the difference is that: step one weighs the Tissuemat E of the paper pulp of 40 parts, the polyolefin of 60 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part by weight.Other are identical with detailed description of the invention one or two.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three the difference is that: step one weighs the Tissuemat E of the paper pulp of 20 parts, the polyolefin of 80 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part by weight.Other are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four the difference is that: adding water in step 2 to leach after putting into the 60min that pulls an oar in beater obtains mixture.Other are identical with one of detailed description of the invention one to four.
Detailed description of the invention six: present embodiment and one of detailed description of the invention one to five the difference is that: mixture is shredded into the little group that diameter is 10mm by step 2.Other are identical with one of detailed description of the invention one to five.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six the difference is that: in step 3 when temperature is 80 DEG C and pressure is 10MPa hot pressing 5min.Other are identical with one of detailed description of the invention one to six.
Detailed description of the invention eight: one of present embodiment and detailed description of the invention one to seven the difference is that: in step 3 when temperature is 105 DEG C and pressure is 10MPa hot pressing 5min.Other are identical with one of detailed description of the invention one to seven.
Detailed description of the invention nine: one of present embodiment and detailed description of the invention one to eight the difference is that: machine-shaping described in step 4 is that pellet step 3 obtained is undertaken extruding or being embossed by moulding press by single screw extrusion machine.Other are identical with one of detailed description of the invention one to eight.
Detailed description of the invention ten: one of present embodiment and detailed description of the invention one to nine the difference is that: machine-shaping described in step 4 is that pellet step 3 obtained is placed again in double screw extruder to carry out second melting batch mixing, then pulverizes and carries out extruding or being embossed by moulding press again through single screw extrusion machine.Other are identical with one of detailed description of the invention one to nine.Present embodiment adopts the mode of secondary granulation, further increases paper pulp dispersion effect in vistanex.
Beneficial effects of the present invention is verified by following example:
Embodiment one: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, 500g broad-leaved slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and 10g Tissuemat E are weighed；
Two, 500g broad-leaved slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 110 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is extruded by single screw extrusion machine, obtains paper pulp and strengthens composite polyolefine material.
Hygrometric state paper fibre/high density polyethylene (HDPE) granulate mixture dries through preliminary hot pressing again, can reduce plastic grain coming off in dry run；Flaky mixture can carry out direct feeding, it is not necessary to forced feed.
Embodiment two: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, 500g needle slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and 10g Tissuemat E are weighed；
Two, 500g needle slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 110 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is extruded by single screw extrusion machine, obtains paper pulp and strengthens composite polyolefine material.
The needle slurry that the present embodiment adopts draw ratio higher can better form network structure and be fixed on wherein by plastic powders, and in dry run, less plastic grain comes off.
Embodiment three: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, 100～400g paper pulp, 600～800g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and 10g Tissuemat E are weighed；
Two, 100～400g paper pulp, 600～800g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 110 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is extruded by single screw extrusion machine, obtains paper pulp and strengthens composite polyolefine material.
The present embodiment is by changing paper pulp ratio, it is possible to the paper fibre/high density polyethylene (HDPE) composite wood of the different fiber content of preparation.
Embodiment four: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, 500g paper pulp, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid, 10g Tissuemat E and 5～15gKH550 silane coupler are weighed；
Two, 500g paper pulp, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 105 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, be then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%；Then 5～15gKH550 silane coupler is dissolved in the ethanol that volume fraction is 95% and makes the solution that mass fraction is 5%, then by spray solution that mass fraction is 5% on the tablet that dry thickness is 2mm～5mm after be dried to the moisture content of the tablet that dry thickness is 2mm～5mm when temperature is 103 DEG C lower than 3%；It is then placed in double screw extruder melting mixing, pelletize after cooling, obtain pellet；
Four, the pellet that step 3 is obtained is extruded by single screw extrusion machine, obtains paper pulp and strengthens composite polyolefine material.
The present embodiment adds Silane coupling agent KH550, is conducive to improving the interface cohesion of paper pulp fiber and interlaminar resin；Compared with embodiment one, the paper pulp fiber/high density polyethylene (HDPE) composite wood intensity prepared after adding Silane coupling agent KH550 improves 15～40%.
Embodiment five: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, the polypropylene fibre of the 3～6mm of 500g paper pulp, 500g, 30g maleic anhydride inoculated polypropylene, 10g stearic acid and 10g Tissuemat E are weighed；
Two, 500g paper pulp, the polypropylene fibre of 3～6mm of 500g, 30g maleic anhydride inoculated polypropylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 105 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, be then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%；It is then placed in double screw extruder melting mixing, pelletize after cooling, obtain pellet；
Four, the pellet that step 3 is obtained is extruded by single screw extrusion machine, obtains paper pulp and strengthens composite polyolefine material.
The present embodiment adopts resin fibre, its mode of appearance and bulk density and paper pulp close, is beneficial in pulping process Homogeneous phase mixing, and in dry run, resin fibre can well be fixed in paper pulp, will not depart from from paper pulp as plastic powders.
Embodiment six: a kind of paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, 500g broad-leaved slurry or needle slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and 10g Tissuemat E are weighed；
Two, 500g broad-leaved slurry, 500g powdered high-density polyethylene, 30g maleic anhydride grafted polyethylene, 10g stearic acid and the mixing of 10g Tissuemat E step one weighed, then add to leach after 20L water puts into the 60min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 10mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, the hot pressing 5min when temperature is 110 DEG C and pressure is 10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 obtains is placed again in double screw extruder to carry out second melting batch mixing, then pulverizes and carry out extruding or being embossed by moulding press again through single screw extrusion machine, obtain paper pulp and strengthen composite polyolefine material.
The present embodiment process by secondary granulation, improves fiber dispersion in the plastic.
Claims (10)
1. the preparation method that a paper pulp strengthens composite polyolefine material, it is characterised in that paper pulp strengthens the preparation method of composite polyolefine material and carries out according to the following steps:
One, the Tissuemat E of the paper pulp of 10～60 parts, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and 1～3 part is weighed by weight；Described polyolefin is vistanex pellet or polyolefine fiber；
The paper pulp of 10～60 parts two, step one weighed, the polyolefin of 40～90 parts, the maleic anhydride grafted polyethylene of 3～6 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1～3 part and the Tissuemat E of 1～3 part mix, then add water to leach after putting into the 30min～90min that pulls an oar in beater and obtain mixture, mixture is shredded into the little group that diameter is 5mm～15mm, obtains the mixture shredded；
Three, the mixture shredded step 2 obtained is placed in hot press, hot pressing 4min～10min when temperature is 80 DEG C～150 DEG C and pressure is 5MPa～10MPa, obtain the tablet that thickness is 2mm～5mm, it is then placed in the moisture content being dried to the tablet that thickness is 2mm～5mm in the baking oven that temperature is 80 DEG C lower than 3%, it is then placed in double screw extruder melting mixing, pelletize after cooling, obtains pellet；
Four, the pellet that step 3 is obtained is processed molding, obtains paper pulp and strengthens composite polyolefine material.
2. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that weigh the Tissuemat E of the paper pulp of 50 parts, the polyolefin of 50 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part in step one by weight.
3. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that weigh the Tissuemat E of the paper pulp of 40 parts, the polyolefin of 60 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part in step one by weight.
4. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that weigh the Tissuemat E of the paper pulp of 20 parts, the polyolefin of 80 parts, the maleic anhydride grafted polyethylene of 3 parts or maleic anhydride inoculated polypropylene, the stearic acid of 1 part and 1 part in step one by weight.
5. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that adding water in step 2 to leach after putting into the 60min that pulls an oar in beater obtains mixture.
6. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that in step 2, mixture is shredded into the little group that diameter is 10mm.
7. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that in step 3 when temperature is 80 DEG C and pressure is 10MPa hot pressing 5min.
8. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that in step 3 when temperature is 105 DEG C and pressure is 10MPa hot pressing 5min.
9. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterised in that machine-shaping described in step 4 is that pellet step 3 obtained is undertaken extruding or being embossed by moulding press by single screw extrusion machine.
10. the preparation method that a kind of paper pulp according to claim 1 strengthens composite polyolefine material, it is characterized in that machine-shaping described in step 4 is that pellet step 3 obtained is placed again in double screw extruder to carry out second melting batch mixing, then pulverize and carry out extruding or being embossed by moulding press again through single screw extrusion machine.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729169A (en) * | 2019-11-18 | 2022-07-08 | 赛佩荷兰服务有限公司 | Non-corrosive fiber reinforced polymer composition |
| CN116925454A (en) * | 2023-09-13 | 2023-10-24 | 山东科迈生物制浆有限公司 | Paper pulp/polyethylene composite material and preparation method thereof |
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| CN105733063B (en) | 2017-11-07 |
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