CN104650440A - Preparation method of nucleating agent modified polyethylene tube - Google Patents
Preparation method of nucleating agent modified polyethylene tube Download PDFInfo
- Publication number
- CN104650440A CN104650440A CN201510062810.4A CN201510062810A CN104650440A CN 104650440 A CN104650440 A CN 104650440A CN 201510062810 A CN201510062810 A CN 201510062810A CN 104650440 A CN104650440 A CN 104650440A
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- Prior art keywords
- nucleator
- preparation
- piping materials
- modified polyvinyl
- nucleater
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- 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
- C08K9/00—Use of pretreated ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- Chemical & Material Sciences (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)
Abstract
The invention discloses a preparation method of a nucleating agent modified polyethylene tube. A nucleating agent is an organic pigment phthalocyanine blue. The preparation method comprises the following steps: firstly, grinding and moisturizing phthalocyanine blue, mixing with 10-30 parts by weight of polyethylene resin and dispersing with PE wax, extruding and pelletizing to obtain modified polyethylene master batch, then mixing 0.1-1 part by weight of modified polyethylene master batch with 100kg of polyethylene resin, and extruding and forming to obtain the nucleating agent modified polyethylene tube. Compared with polyethylene tube without the nucleating agent, the tensile strength is improved by more than 20%, and the elongation at break is improved by more than 40%; in addition, the modified raw material can also achieve the effects that the tube is more easily formed during processing, and the wall thickness is evener.
Description
Technical field
The present invention relates to plastic conduit field, specifically refer to a kind of preparation method with nucleater modified polyvinyl piping materials.
Background technology
Plastic conduit is due to the performance of its excellence, be widely used in each field as engineering plumbing, energy heating system, gas pipeline system etc., but along with the progress of society and the raising of national life level, the requirement of the performance of pipeline particularly over-all properties is improved day by day.In process of production, due to the crystallization velocity of polyethylene raw material, the problems such as crystal is uneven cause the defect such as tube wall thickness inequality and poor mechanical property in processing, how ensureing that polyethylene also keeps the original mechanical property of raw material after being processed into pipeline, is a difficult problem of pendulum in face of plastic working industry.
In pipeline raw materials, add nucleator, it is a solution that product mechanical property is got a promotion, and current nucleator is of a great variety, mainly comprises mineral-type nucleator and organic nucleator.
Application number be 200610118073.6 patent discloses a kind of beta crystal-type nucleater, its nucleating effect is good, obtain good effect, but its cost is higher.
Application number be 201310376134.9 and 201010164416.9 patent individually disclose add the quality that phthalocyanine blue can increase plastics in plastics, but it does not highlight phthalocyanine blue effect as nucleator.
Summary of the invention
The object of the invention is to the crystallization velocity due to polyethylene raw material in the production process of solution PE tubing, the problems such as crystal is uneven cause the defect such as tube wall thickness inequality and poor mechanical property in processing.
The present invention is as follows by following technical solution:
By a preparation method for nucleater modified polyvinyl piping materials, its step comprises:
(1) nucleator is carried out surface treatment: its technique nucleator is carried out grinding to sieve 1800 ~ 2000 orders, then carry out moistened surface 2 ~ 4 minutes;
(2) by the surface treated nucleator powder of the 10-30 parts by weight described in step (1), join in the polyvinyl resin of 100 parts by weight, mixing and after the dispersant of 0.05-0.5 parts by weight again extruding pelletization obtain the blended master batch of modified poly ethylene;
(3), after being stirred by the polyvinyl resin of same for the blended master batch of modified poly ethylene of the 0.1-1 parts by weight described in step (2) 100 parts by weight, extrusion moulding obtains with nucleater modified polyvinyl piping materials.
Described nucleator is divided into mineral-type nucleator and organic nucleator, and wherein mineral-type nucleator mainly contains talcum powder, calcium oxide, carbon black, calcium carbonate, mica, mineral dye, kaolin and catalyst residue etc.; Organic nucleator mainly contains carboxylic acid metal's salt, phosphate metal salt, sorbyl alcohol benzal derivative, high-melting-point polymer type nucleator, beta crystal-type nucleater; Preferably, described nucleator is pigment dyestuff phthalocyanine blue.
Described dispersion agent is paraffin, polyethylene wax or fatty acid dispersion agent; Preferably, described dispersion agent is polyethylene wax.
Mixing in described step (2) utilizes Z-shaped kneader, high-speed mixer, mill or Banbury mixer mixing 20 ~ 30min.
Extruding pelletization in described step (2) utilizes single screw extrusion machine, twin screw extruder or Planetary Screw Extruder to extrude, and extrusion temperature is at 170 ~ 210 DEG C.
In described step (3), polyethylene extrusion tubing adopts state of the art to extrude.
The invention has the beneficial effects as follows: the present invention makes full use of existing equipment in polyvinyl piping materials industry, only need the nucleator pellet of a small amount of modification be utilized can to accelerate tubing crystallization velocity in the course of processing on formula, make crystal fine uniform more in tubing, relative to the polyvinyl piping materials not adding nucleator, tensile strength improves more than 20%, and elongation at break improves more than 40%; This modified feedstock can also to solve in tubular object extruding process more easy-formation in addition, and wall thickness is more even.
Embodiment
By a preparation method for nucleater modified polyvinyl piping materials, wherein in this present invention, the measuring method of each embodiment is measured according to standard GB/T8804.3-2003.
Embodiment 1
The embodiment of the present invention provides a kind of preparation method with nucleater modified polyvinyl piping materials:
First, take phthalocyanine blue (BASF K7090) 1kg and grind, be ground to 1800 mesh sieves, then carry out immersion 2 minutes with water, drain for subsequent use.
Join in the polyvinyl resin of 10kg by above-mentioned surface treated phthalocyanine blue, be uniformly mixed, then toward wherein adding polyethylene of dispersing agent wax 0.005Kg, extruding pelletization again after mixing, obtains the blended master batch of modified poly ethylene.
To take in the blended master batch 0.1kg of above-mentioned modified poly ethylene and 100kgPN049 polyvinyl resin, abundant mix and blend 20min is carried out by high-speed mixer, single screw extrusion machine is adopted to extrude, the temperature in the district of four of Single screw extrusion is respectively: 180 ~ 190 DEG C, a district, two 180 ~ 190 DEG C, districts, 3rd district are 190 ~ 200, four districts is 180 ~ 190 DEG C, extrudes and obtains nucleater modified polyvinyl piping materials.
The tensile strength of embodiment of the present invention gained polyvinyl piping materials is 29.6MPa, and elongation at break is 691 %.
Embodiment 2
The embodiment of the present invention provides a kind of preparation method with nucleater modified polyvinyl piping materials:
First, take phthalocyanine blue (BASF K7090) 1.5kg and grind, be ground to 2000 mesh sieves, then carry out immersion 3 minutes with water, drain for subsequent use.
Join in the polyvinyl resin of 10kg by above-mentioned surface treated phthalocyanine blue, be uniformly mixed, then toward wherein adding polyethylene of dispersing agent wax 0.025Kg, extruding pelletization again after mixing, obtains the blended master batch of modified poly ethylene.
To take in the blended master batch 0.5kg of above-mentioned modified poly ethylene and 100kgPN049 polyvinyl resin, abundant mix and blend 25min is carried out by high-speed mixer, single screw extrusion machine is adopted to extrude, the temperature in the district of four of Single screw extrusion is respectively: 180 ~ 190 DEG C, a district, two 180 ~ 190 DEG C, districts, 3rd district are 190 ~ 200, four districts is 180 ~ 190 DEG C, extrudes and obtains nucleater modified polyvinyl piping materials.
The tensile strength of embodiment of the present invention gained polyvinyl piping materials is 31.2MPa, and elongation at break is 783%.
Embodiment 3
The embodiment of the present invention provides a kind of preparation method with nucleater modified polyvinyl piping materials:
First, take phthalocyanine blue (BASF K7090) 3kg and grind, be ground to 2000 mesh sieves, then carry out immersion 4 minutes with water, drain for subsequent use.
Join in the polyvinyl resin of 10kg by above-mentioned surface treated phthalocyanine blue, be uniformly mixed, then toward wherein adding polyethylene of dispersing agent wax 0.05Kg, extruding pelletization again after mixing, obtains the blended master batch of modified poly ethylene.
To take in above-mentioned modified poly ethylene blended master batch 1kg and 100kgPN049 polyvinyl resin and carry out abundant mix and blend 30min by high-speed mixer, single screw extrusion machine is adopted to extrude, the temperature in the district of four of Single screw extrusion is respectively: 180 ~ 190 DEG C, a district, two 180 ~ 190 DEG C, districts, 3rd district are 190 ~ 200,4th district are 180 ~ 190 DEG C, extrude and obtain nucleater modified polyvinyl piping materials.
The tensile strength of embodiment of the present invention gained polyvinyl piping materials is 30.1MPa, and elongation at break is 708 %.
Embodiment 4
Direct use PN049 polyethylene raw material adopts single screw extrusion machine to extrude, the temperature in the district of four of Single screw extrusion is respectively: 180 ~ 190 DEG C, a district, two 180 ~ 190 DEG C, districts, 3rd district are 190 ~ 200,4th district are 180 ~ 190 DEG C, extrude and are not added nucleater modified polyvinyl piping materials, as a control group, in the present embodiment, the tensile strength of gained polyvinyl piping materials is 24.5MPa, and elongation at break is 486%.
The foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalence transformation; or direct or indirect other association areas used beyond the present invention, all can be considered in scope of patent protection of the present invention.
Claims (8)
1. by a preparation method for nucleater modified polyvinyl piping materials, it is characterized in that: described technique comprises the steps:
(1) nucleator is carried out surface treatment: its technique nucleator is carried out grinding to sieve 1800 ~ 2000 orders, then carry out moistened surface 2 ~ 4min;
(2) by the surface treated nucleator powder of the 10-30 parts by weight described in step (1), join in the polyvinyl resin of 100 parts by weight, mixing and after the dispersant of 0.05-0.5 parts by weight again extruding pelletization obtain the blended master batch of modified poly ethylene;
After being stirred by the polyvinyl resin of same for the blended master batch of modified poly ethylene of the 0.1-1 parts by weight described in step (2) 100 parts by weight, extrusion moulding obtains with nucleater modified polyvinyl piping materials.
2. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1, it is characterized in that: described nucleator is divided into mineral-type nucleator and organic nucleator, and wherein mineral-type nucleator mainly contains talcum powder, calcium oxide, carbon black, calcium carbonate, mica, mineral dye, kaolin and catalyst residue etc.; Organic nucleator mainly contains carboxylic acid metal's salt, phosphate metal salt, sorbyl alcohol benzal derivative, high-melting-point polymer type nucleator, beta crystal-type nucleater.
3. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1 or 2, is characterized in that described nucleator is pigment dyestuff phthalocyanine blue.
4. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1, is characterized in that: described dispersion agent is paraffin, polyethylene wax or fatty acid dispersion agent.
5. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1 or 4: it is characterized in that: described dispersion agent is polyethylene wax.
6. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1, it is characterized in that: described nucleator directly can join in polyvinyl resin in proportion and mix after surface treatment, and after dispersant, extrusion moulding directly obtains nucleater modified polyvinyl piping materials.
7. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1, is characterized in that: the mixing in described step (2) utilizes Z-shaped kneader, high-speed mixer, mill or Banbury mixer mixing 20 ~ 30min.
8. a kind of preparation method with nucleater modified polyvinyl piping materials according to claim 1, is characterized in that: the extruding pelletization in described step (2) utilizes single screw extrusion machine, twin screw extruder or Planetary Screw Extruder to extrude at 170 ~ 210 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062810.4A CN104650440A (en) | 2015-02-06 | 2015-02-06 | Preparation method of nucleating agent modified polyethylene tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062810.4A CN104650440A (en) | 2015-02-06 | 2015-02-06 | Preparation method of nucleating agent modified polyethylene tube |
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| Publication Number | Publication Date |
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| CN104650440A true CN104650440A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510062810.4A Pending CN104650440A (en) | 2015-02-06 | 2015-02-06 | Preparation method of nucleating agent modified polyethylene tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762279A (en) * | 2018-12-10 | 2019-05-17 | 上海至正道化高分子材料股份有限公司 | A kind of cracking resistance low abrasion fluoroplastic cable material and preparation method thereof |
| CN115073835A (en) * | 2021-06-10 | 2022-09-20 | 中国石油工程建设有限公司 | High-temperature-resistant polyethylene pipeline and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004315715A (en) * | 2003-04-18 | 2004-11-11 | Toyo Ink Mfg Co Ltd | Colored resin composition resistant to chlorine-containing water and pipe for city water supply |
| CN102286173A (en) * | 2011-07-15 | 2011-12-21 | 浙江伟星新型建材股份有限公司 | High weatherproof polypropylene random copolymer (PPR) pipe and preparation method thereof |
-
2015
- 2015-02-06 CN CN201510062810.4A patent/CN104650440A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004315715A (en) * | 2003-04-18 | 2004-11-11 | Toyo Ink Mfg Co Ltd | Colored resin composition resistant to chlorine-containing water and pipe for city water supply |
| CN102286173A (en) * | 2011-07-15 | 2011-12-21 | 浙江伟星新型建材股份有限公司 | High weatherproof polypropylene random copolymer (PPR) pipe and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 丁浩 主编: "《塑料工业实用手册 上册》", 31 May 1995, 化学工业出版社 * |
| 徐佩弦 编著: "《塑料注射成型与模具设计指南》", 31 January 2014, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762279A (en) * | 2018-12-10 | 2019-05-17 | 上海至正道化高分子材料股份有限公司 | A kind of cracking resistance low abrasion fluoroplastic cable material and preparation method thereof |
| CN115073835A (en) * | 2021-06-10 | 2022-09-20 | 中国石油工程建设有限公司 | High-temperature-resistant polyethylene pipeline and preparation method thereof |
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Application publication date: 20150527 |
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