CN103554628A - Special material for tubular product produced by recovering and modifying waste cross-linked PE (Poly Ethylene) cable material as well as preparation method of special material - Google Patents

Special material for tubular product produced by recovering and modifying waste cross-linked PE (Poly Ethylene) cable material as well as preparation method of special material Download PDF

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Publication number
CN103554628A
CN103554628A CN201310588088.9A CN201310588088A CN103554628A CN 103554628 A CN103554628 A CN 103554628A CN 201310588088 A CN201310588088 A CN 201310588088A CN 103554628 A CN103554628 A CN 103554628A
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China
Prior art keywords
special material
cable
crosslinked
sheet stock
waste
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CN201310588088.9A
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Chinese (zh)
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CN103554628B (en
Inventor
乔江浩
陈道明
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SICHUAN SUJIN TECHNOLOGY CO LTD
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SICHUAN SUJIN TECHNOLOGY CO LTD
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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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • 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
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • 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
    • C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
    • 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
    • C08L2207/066—LDPE (radical process)

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention discloses a special material for a tubular product produced by recovering and modifying a waste cross-linked PE (Poly Ethylene) cable material, and relates to regeneration of plastics. The special material is prepared from the following components in parts by weight: recovered cross-linked PE cable crushed sheet stocks, 30-50 parts of crushed sheet stocks of a PE hollow blow molding product, 5-20 parts of LDPE (Low-Density Polyethylene) blow molding feedback particles, 3-10 parts of POE (Polyolefin Elastomer), 0.1-0.3 part of calcium stearate and 0.2-1 part of PE wax. Compared with the prior art, the special material has the advantages that the mobility of the special material for the tubular product produced by recovering and modifying the waste cross-linked PE cable material, which is disclosed by the invention, is within a conventional HDPE (High-Density Polyethylene) tubular product material range, the tensile strength is greater than that of a novel material of the HDPE tubular product, and the breaking elongation further satisfies the demand. The general advantage of the special material disclosed by the invention is even superior to that of the new material.

Description

Waste and old crosslinked PE CABLE MATERIALS reclaims modification and produces special material for tube and preparation method thereof
Technical field
The present invention relates to a kind of waste and old crosslinked PE CABLE MATERIALS and reclaim modification production special material for tube and preparation method thereof.
Background technology
Twisted polyethylene cable is because crosslinked, regeneration processing is very difficult, and crosslinked polyethylene is multiplex now carrys out thermal degradation oil refining, but pollutes very serious, Hou Bei is banned by country oil refining enterprise, and crosslinked polyethylene has been recycled into the hang-up that Plastics in China is recycled.
Crosslinked PE, because corsslinking molecular knot forms tridimensional network, is difficult to fragmentation and melting, and reclaims broken crosslinked PE because mobility is lower, is difficult to forming process again.
Summary of the invention
One of object of the present invention is just to provide a kind of waste and old crosslinked PE CABLE MATERIALS to reclaim modification and produces special material for tube, this waste and old crosslinked PE CABLE MATERIALS reclaims modification and produces special material for tube mobility within conventional H DPE tube material scope, tensile strength is higher than HDPE tubing virgin material, elongation at break also meets the requirements, and overall advantage is even higher than virgin material.
Technical scheme is: a kind of waste and old crosslinked PE CABLE MATERIALS reclaims modification and produces special material for tube, and this waste and old crosslinked PE CABLE MATERIALS reclaims modification production special material for tube and made by following composition:
The broken sheet stock of crosslinked PE cable reclaiming
The broken sheet stock 30-50 of PE Blow Molded Articles weight part
LDPE blown film feed back particle 5-20 weight part
POE 3-10 weight part
Calcium stearate 0.1-0.3 weight part
And PE wax 0.2-1 weight part.
Two of object of the present invention is to provide a kind of above-mentioned waste and old crosslinked PE CABLE MATERIALS to reclaim the preparation method that special material for tube is produced in modification.
Technical scheme is: a kind of method of preparing above-mentioned waste and old crosslinked PE CABLE MATERIALS recovery modification production special material for tube, comprises the following steps:
Step 1: the broken sheet stock of the crosslinked PE cable reclaiming and the broken sheet stock cleaning and dewatering of PE Blow Molded Articles is dry;
Step 2: get all the other raw materials and put into high mixer mix together with the broken sheet stock of crosslinked PE cable in step 1, the broken sheet stock of PE Blow Molded Articles.
Step 3: double-screw extruding pelletizing.
Step 4: by particle drying.
As preferably, the broken sheet stock size of described crosslinked PE cable is 4-7mm, and PE Blow Molded Articles fragmentation sheet stock size is 4-7mm.
As preferably, in described step 2, the high-speed mixer and mixing time is 3-5 minute.
As preferably, in described step 3, twin screw extruder engine speed 30HZ, Screw Extrusion temperature is 165-200 ℃.
Inventive principle and beneficial effect:
Crosslinked PE cable waste or used plastics, because crosslinked, it is netted that molecular structure is, melt-processed is very difficult, it is low that a lot of large-scale PE requirements for pipes of existing market are melted finger, we are by the crosslinked PE of low flow and the better Blow Molded Articles PE material of mobility hybrid process, improved the mobility of crosslinked polyethylene, reduced the mobility of Blow Molded Articles PE, modified plastics mobility after this combination of two kinds meets large pipe PE processing fluidity just, consider consistency and over-all properties, we increase by two ingredient compatibilitys by adding part LDPE and POE, improve toughness, add PE improves in formula lubricated simultaneously, with calcium stearate, cover outer lubricated, it is the inside and outside lubricated best effect that reaches.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
The waste and old crosslinked PE CABLE MATERIALS of embodiment 1 reclaims the preparation that special material for tube is produced in modification
Step 1: raw material is prepared, broken sheet stock 40 weight parts of the crosslinked PE cable reclaiming (being broken into big or small 4-7mm left and right) and broken sheet stock 40 weight parts of PE Blow Molded Articles (being broken for big or small 4-7mm left and right) cleaning and dewatering are dry.
Step 2: get LDPE blown film feed back particle 15 weight parts, POE 5 weight parts, calcium stearate 0.15 weight part and PE wax 0.15 weight part and put into high mixer together with crosslinked PE cable broken material in step 1, the broken sheet stock of PE Blow Molded Articles, mix 3-5 minute.
Step 3: double-screw extruding pelletizing, engine speed 30HZ, Screw Extrusion temperature is 165-200 ℃.
Step 4: by particle drying, packing.
Embodiment 2
Regeneration pipe material PP Pipe Compound and other tube material that embodiment 1 is produced carry out respectively Performance Detection, contrast as following table one:
Table one
Sequence number Test item Crosslinked PE feed back HDPE tube material Embodiment 1 Detection method
1 MFR g/10min 5Kg —— 0.1-0.5 0.17 GB/T 3682
2 Tensile strength Mpa 28 20 24 GB/T 1040
3 Yield strength MPa 28 20 24 GB/T 1040
4 Elongation at break % 340 ≥200 287 GB/T 1040
As can be seen from Table I, although crosslinked feed back performance is fine, mobility is very poor, 5 ㎏, 190 ℃, can not squeeze material, the life-span is difficult to processing, according to invention, produces crosslinked PE regenerating and modifying special material for tube, mobility is within conventional H DPE tube material scope, tensile strength is higher than HDPE tubing virgin material, and elongation at break also meets the requirements, and overall advantage is even higher than virgin material.

Claims (5)

1. waste and old crosslinked PE CABLE MATERIALS reclaims modification and produces a special material for tube, and this waste and old crosslinked PE CABLE MATERIALS reclaims modification production special material for tube and made by following composition:
The broken sheet stock 30-50 of the crosslinked PE cable weight part reclaiming
The broken sheet stock 30-50 of PE Blow Molded Articles weight part
LDPE blown film feed back particle 5-20 weight part
POE 3-10 weight part
Calcium stearate 0.1-0.3 weight part
And PE wax 0.2-1 weight part.
2. prepare waste and old crosslinked PE CABLE MATERIALS claimed in claim 1 and reclaim the method that special material for tube is produced in modification, comprise the following steps:
Step 1: the broken sheet stock of the crosslinked PE cable reclaiming and the broken sheet stock cleaning and dewatering of PE Blow Molded Articles is dry;
Step 2: get all the other raw materials and put into high mixer mix together with the broken sheet stock of crosslinked PE cable in step 1, the broken sheet stock of PE Blow Molded Articles;
Step 3: double-screw extruding pelletizing;
Step 4: by particle drying.
3. waste and old crosslinked PE CABLE MATERIALS according to claim 2 reclaims the method that special material for tube is produced in modification, it is characterized in that: the broken sheet stock size of described crosslinked PE cable is 4-7mm, and the broken sheet stock size of PE Blow Molded Articles is 4-7mm.
4. waste and old crosslinked PE CABLE MATERIALS according to claim 2 reclaims the method that special material for tube is produced in modification, it is characterized in that: in described step 2, the high-speed mixer and mixing time is 3-5 minute.
5. waste and old crosslinked PE CABLE MATERIALS according to claim 2 reclaims the method that special material for tube is produced in modification, it is characterized in that: in described step 3, and twin screw extruder engine speed 30HZ, Screw Extrusion temperature is 165-200 ℃.
CN201310588088.9A 2013-11-21 2013-11-21 Waste and old crosslinked PE CABLE MATERIALS reclaims modification and produces special material for tube and preparation method thereof Active CN103554628B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105013759A (en) * 2015-08-19 2015-11-04 成都鑫成鹏线缆材料有限公司 Cleaning equipment of cable raw materials and cleaning process
CN108034104A (en) * 2017-11-17 2018-05-15 神华集团有限责任公司 Polyethylene injection composition and polyethylene injection moulded products and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033959A (en) * 1988-11-28 1989-07-19 张景洋 The method of recycling crosslinking polyethylene-insulated cable insulation skin
CN102417650A (en) * 2011-11-28 2012-04-18 浙江伟星新型建材股份有限公司 Wear-resistant crosslinked PE (Polyethylene) composite pipe and manufacturing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033959A (en) * 1988-11-28 1989-07-19 张景洋 The method of recycling crosslinking polyethylene-insulated cable insulation skin
CN102417650A (en) * 2011-11-28 2012-04-18 浙江伟星新型建材股份有限公司 Wear-resistant crosslinked PE (Polyethylene) composite pipe and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105013759A (en) * 2015-08-19 2015-11-04 成都鑫成鹏线缆材料有限公司 Cleaning equipment of cable raw materials and cleaning process
CN108034104A (en) * 2017-11-17 2018-05-15 神华集团有限责任公司 Polyethylene injection composition and polyethylene injection moulded products and preparation method thereof

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