CN109666217A - The method of modifying of polypropylene returns - Google Patents

The method of modifying of polypropylene returns Download PDF

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Publication number
CN109666217A
CN109666217A CN201811589065.9A CN201811589065A CN109666217A CN 109666217 A CN109666217 A CN 109666217A CN 201811589065 A CN201811589065 A CN 201811589065A CN 109666217 A CN109666217 A CN 109666217A
Authority
CN
China
Prior art keywords
polypropylene
filter
modifying
single screw
follows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811589065.9A
Other languages
Chinese (zh)
Inventor
马海燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong New Silk Monofilament Polytron Technologies Inc
Original Assignee
Nantong New Silk Monofilament Polytron Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong New Silk Monofilament Polytron Technologies Inc filed Critical Nantong New Silk Monofilament Polytron Technologies Inc
Priority to CN201811589065.9A priority Critical patent/CN109666217A/en
Publication of CN109666217A publication Critical patent/CN109666217A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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

Abstract

The invention discloses a kind of method of modifying of polypropylene returns, polypropylene waste plastics bag and/or useless fiber are crushed, again through single screw extrusion machine melting extrusion, double screw extruder melting extrusion is sent into after additive is added in the melting extrusion material of single screw extrusion machine, it is filtered further across filter, the raw material come out afterwards from filter end die head forms Cast Strip, and die head temperature is 285 DEG C；It is further cooled by water, pelletizing obtains particulate material.The present invention is easy to make, can effectively improve filament strength obtained, and filament strength reaches 6 ~ 7 cN/dtex.

Description

The method of modifying of polypropylene returns
Technical field
The present invention relates to a kind of method of modifying of polypropylene returns.
Background technique
Polypropylene waste plastics bag and/or useless fiber, when manufacturing monofilament, obtained filament strength is low, generally 3.5cN/ Dtex influences product quality.
Summary of the invention
The purpose of the present invention is to provide the modifications that one kind can effectively improve the polypropylene returns of filament strength obtained Method.
The technical solution of the invention is as follows:
A kind of method of modifying of polypropylene returns, it is characterized in that: including the following steps: polypropylene waste plastics bag and/or giving up Fiber crushes, then through single screw extrusion machine melting extrusion, is sent into after additive is added in the melting extrusion material of single screw extrusion machine Double screw extruder melting extrusion, further across filter filter, after from filter end die head come out raw material formed Cast Strip, Die head temperature is 285 DEG C；It is further cooled by water, pelletizing obtains particulate material；The filtering mesh number of filter are as follows:≤25 μm, mistake Filtering surface product are as follows: >=2.5 square metres；The additive comprises the following components in percentage by weight；
Maleic anhydride inoculated polypropylene 85 ~ 95%
Nanometer calcium carbonate 4 ~ 14%
Dispersing agent 0.3 ~ 0.5%
Coupling agent 0.2 ~ 0.5%；
The dosage of additive is the 5 ~ 10% of polypropylene waste plastics bag and/or useless fibre weight.
The screw diameter of the single screw extrusion machine is 90 ~ 150mm, and six area's temperature of single screw extrusion machine are respectively as follows: 265 ℃、270℃、275℃、275℃、280℃、285℃。
The screw diameter of the double screw extruder is 36 ~ 53mm, and the extruder temperature of double screw extruder is 265 DEG C.
The dispersing agent are as follows: polyethylene wax, odium stearate, calcium stearate compound, polyethylene wax in the compound: Odium stearate: calcium stearate compounds mass ratio=15 ~ 35:25 ~ 35:30 ~ 60；The coupling agent is KH570 silane coupling agent.
The present invention is easy to make, can effectively improve filament strength obtained, and filament strength reaches 6 ~ 7 cN/dtex or more.
Below with reference to embodiment, the invention will be further described.
Specific embodiment
Embodiment 1:
A kind of method of modifying of polypropylene returns, including the following steps: polypropylene waste plastics bag and/or useless fiber are crushed, Again through single screw extrusion machine melting extrusion, twin-screw extrusion is sent into after additive is added in the melting extrusion material of single screw extrusion machine Machine melting extrusion is filtered further across filter, after the raw material that is come out from filter end die head form Cast Strip, die head temperature is 285℃；It is further cooled by water, pelletizing obtains particulate material；The filtering mesh number of filter are as follows:≤25 μm, filter area are as follows: >= 2.5 square metre；The additive comprises the following components in percentage by weight；
Maleic anhydride inoculated polypropylene 90%
Nanometer calcium carbonate 9.3%
Dispersing agent 0.4%
Coupling agent 0.3%；
The dosage of additive is the 8% of polypropylene waste plastics bag and/or useless fibre weight.
The screw diameter of the single screw extrusion machine is 110mm(or 93mm, 115mm, 127mm, 146mm), single screw rod is squeezed Six area's temperature of Ji is respectively as follows: 265 DEG C, 270 DEG C, 275 DEG C, 275 DEG C, 280 DEG C, 285 DEG C out.
The screw diameter of the double screw extruder is 45mm(or 38 mm, 42 mm, 51 mm, 52mm), twin-screw extrusion The extruder temperature of machine is 265 DEG C.
The dispersing agent are as follows: polyethylene wax, odium stearate, calcium stearate compound, polyethylene wax in the compound: Odium stearate: calcium stearate compounds mass ratio=15:30:50；The coupling agent is KH570 silane coupling agent.
Further filament strength obtained reaches 6.0 cN/dtex or more.
Embodiment 2:
A kind of method of modifying of polypropylene returns, including the following steps: polypropylene waste plastics bag and/or useless fiber are crushed, Again through single screw extrusion machine melting extrusion, twin-screw extrusion is sent into after additive is added in the melting extrusion material of single screw extrusion machine Machine melting extrusion is filtered further across filter, after the raw material that is come out from filter end die head form Cast Strip, die head temperature is 285℃；It is further cooled by water, pelletizing obtains particulate material；The filtering mesh number of filter are as follows:≤25 μm, filter area are as follows: >= 2.5 square metre；The additive comprises the following components in percentage by weight；
Maleic anhydride inoculated polypropylene 87%
Nanometer calcium carbonate 12.3%
Dispersing agent 0.3%
Coupling agent 0. 4%；
The dosage of additive is the 10% of polypropylene waste plastics bag and/or useless fibre weight.
The screw diameter of the single screw extrusion machine is 130mm(or 92mm, 113mm, 129mm, 148mm), single screw rod is squeezed Six area's temperature of Ji is respectively as follows: 265 DEG C, 270 DEG C, 275 DEG C, 275 DEG C, 280 DEG C, 285 DEG C out.
The screw diameter of the double screw extruder is 45mm(or 36 mm, 44mm, 50mm, 52mm), double screw extruder Extruder temperature be 265 DEG C.
Polyethylene wax, odium stearate, calcium stearate compound, polyethylene wax in the compound: odium stearate: stearic Sour calcium compounds mass ratio=20:30:60；The coupling agent is KH570 silane coupling agent.
Further filament strength obtained reaches 6.5 cN/dtex or more.
Embodiment 3:
A kind of method of modifying of polypropylene returns, including the following steps: polypropylene waste plastics bag and/or useless fiber are crushed, Again through single screw extrusion machine melting extrusion, twin-screw extrusion is sent into after additive is added in the melting extrusion material of single screw extrusion machine Machine melting extrusion is filtered further across filter, after the raw material that is come out from filter end die head form Cast Strip, die head temperature is 285℃；It is further cooled by water, pelletizing obtains particulate material；The filtering mesh number of filter are as follows:≤25 μm, filter area are as follows: >= 2.5 square metre；The additive comprises the following components in percentage by weight；
Maleic anhydride inoculated polypropylene 92%
Nanometer calcium carbonate 7%
Dispersing agent 0.5%
Coupling agent 0.5%；
The dosage of additive is the 6% of polypropylene waste plastics bag and/or useless fibre weight.
The screw diameter of the single screw extrusion machine is 130mm(or 99mm, 119mm, 129mm, 149mm), single screw rod is squeezed Six area's temperature of Ji is respectively as follows: 265 DEG C, 270 DEG C, 275 DEG C, 275 DEG C, 280 DEG C, 285 DEG C out.
The screw diameter of the double screw extruder is 53mm(or 37 mm, 47 mm, 50mm, 52mm), twin-screw extrusion The extruder temperature of machine is 265 DEG C.
The dispersing agent are as follows: polyethylene wax, odium stearate, calcium stearate compound, polyethylene wax: odium stearate: hard Resin acid calcium compounds mass ratio=30:30:55；The coupling agent is KH570 silane coupling agent.
Further filament strength obtained reaches 7.0 cN/dtex or more.

Claims (4)

1. a kind of method of modifying of polypropylene returns, it is characterized in that: include the following steps: polypropylene waste plastics bag and/or Useless fiber crushes, then through single screw extrusion machine melting extrusion, send after additive is added in the melting extrusion material of single screw extrusion machine Enter double screw extruder melting extrusion, further across filter filter, after from filter end die head come out raw material formed casting Band, die head temperature are 285 DEG C；It is further cooled by water, pelletizing obtains particulate material；The filtering mesh number of filter are as follows:≤25 μm, Filter area are as follows: >=2.5 square metres；The additive comprises the following components in percentage by weight；
Maleic anhydride inoculated polypropylene 85 ~ 95%
Nanometer calcium carbonate 4 ~ 14%
Dispersing agent 0.3 ~ 0.5%
Coupling agent 0.2 ~ 0.5%；
The dosage of additive is the 5 ~ 10% of polypropylene waste plastics bag and/or useless fibre weight.
2. the method for modifying of polypropylene returns according to claim 1, it is characterized in that: the spiral shell of the single screw extrusion machine Shank diameter be 90 ~ 150mm, six area's temperature of single screw extrusion machine be respectively as follows: 265 DEG C, 270 DEG C, 275 DEG C, 275 DEG C, 280 DEG C, 285℃。
3. the method for modifying of polypropylene returns according to claim 1, it is characterized in that: the spiral shell of the double screw extruder Shank diameter is 36 ~ 53mm, and the extruder temperature of double screw extruder is 265 DEG C.
4. the method for modifying of polypropylene returns according to claim 1, it is characterized in that: the dispersing agent are as follows: polyethylene Wax, odium stearate, calcium stearate compound, polyethylene wax in the compound: odium stearate: calcium stearate compounds mass ratio Example=15 ~ 35:25 ~ 35:30 ~ 60；The coupling agent is KH570 silane coupling agent.
CN201811589065.9A 2018-12-25 2018-12-25 The method of modifying of polypropylene returns Pending CN109666217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811589065.9A CN109666217A (en) 2018-12-25 2018-12-25 The method of modifying of polypropylene returns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811589065.9A CN109666217A (en) 2018-12-25 2018-12-25 The method of modifying of polypropylene returns

Publications (1)

Publication Number Publication Date
CN109666217A true CN109666217A (en) 2019-04-23

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Country Status (1)

Country Link
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007068656A1 (en) * 2005-12-12 2007-06-21 Crownstone Limited A method of transforming a recycled polyolefin into a performance enhanced polymeric material
KR101383621B1 (en) * 2012-10-26 2014-04-10 (주)대웅 Recycled polypropylene polymer composite materal composition with improved tensile strength and flexural rigidity and manufacturing method thereof
CN105111585A (en) * 2015-09-10 2015-12-02 常州塑金高分子科技有限公司 Polypropylene washing machine powder filling granules for recovery and preparation method thereof
CN107501719A (en) * 2016-06-14 2017-12-22 合肥杰事杰新材料股份有限公司 One kind polymer-filled master batch and preparation method thereof made of polypropylene reclaimed material
CN108070148A (en) * 2016-11-18 2018-05-25 合肥杰事杰新材料股份有限公司 A kind of polypropylene filler parent granule and preparation method thereof
CN109021403A (en) * 2018-08-31 2018-12-18 芜湖亚太通用托盘包装有限公司 A kind of high-intensity wood plastic pallet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007068656A1 (en) * 2005-12-12 2007-06-21 Crownstone Limited A method of transforming a recycled polyolefin into a performance enhanced polymeric material
KR101383621B1 (en) * 2012-10-26 2014-04-10 (주)대웅 Recycled polypropylene polymer composite materal composition with improved tensile strength and flexural rigidity and manufacturing method thereof
CN105111585A (en) * 2015-09-10 2015-12-02 常州塑金高分子科技有限公司 Polypropylene washing machine powder filling granules for recovery and preparation method thereof
CN107501719A (en) * 2016-06-14 2017-12-22 合肥杰事杰新材料股份有限公司 One kind polymer-filled master batch and preparation method thereof made of polypropylene reclaimed material
CN108070148A (en) * 2016-11-18 2018-05-25 合肥杰事杰新材料股份有限公司 A kind of polypropylene filler parent granule and preparation method thereof
CN109021403A (en) * 2018-08-31 2018-12-18 芜湖亚太通用托盘包装有限公司 A kind of high-intensity wood plastic pallet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
洪定一 等: "《聚丙烯-原理、工艺与技术》", 30 September 2002, 中国石化出版社 *

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Application publication date: 20190423