CN104072862A - Nylon corrugated pipe - Google Patents

Nylon corrugated pipe Download PDF

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Publication number
CN104072862A
CN104072862A CN201410233811.6A CN201410233811A CN104072862A CN 104072862 A CN104072862 A CN 104072862A CN 201410233811 A CN201410233811 A CN 201410233811A CN 104072862 A CN104072862 A CN 104072862A
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CN
China
Prior art keywords
parts
raw material
polypropylene
minute
corrugated pipe
Prior art date
Application number
CN201410233811.6A
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Chinese (zh)
Inventor
强健娜
Original Assignee
安徽海纳川塑业科技有限公司
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Application filed by 安徽海纳川塑业科技有限公司 filed Critical 安徽海纳川塑业科技有限公司
Priority to CN201410233811.6A priority Critical patent/CN104072862A/en
Publication of CN104072862A publication Critical patent/CN104072862A/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/18Applications used for pipes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses a nylon corrugated pipe, comprising the following raw materials in parts by weight: 1-2 parts of phosphite ester, 1-2 parts of hexabromocyclododecane, 10-14 parts of nylon 610, 0.4-1 part of di-methylol di-hydroxy ethylene urea, 1-2 parts of chromic carbonate, 1-2 parts of 2,2-dithienyl methyl glycolate, 2-4 parts of epoxy ethylhexyl stearate, 2-4 parts of hexagonal boron nitride, 6-8 parts of montmorillonite powder, 2-3 parts of polyvinylidene fluoride, 2-3 parts of dipropylene glycol, 1-2 parts of ammonium dihydrogen phosphate, 90-96 parts of polypropylene and 5-7 parts of compound additive. The corrugated pipe disclosed by the invention has good high temperature resistance, good acid and alkali corrosion resistance, strong shock resistance, excellent physical property, good tenacity, high surface hardness, and long service life, and is especially applicable to being used as a dry corrugated pipe material under a high-temperature condition.

Description

A kind of nylon corrugated tube

Technical field

The present invention relates generally to tubing field, relates in particular to a kind of nylon corrugated tube and preparation method thereof.

Background technology

Polyacrylic degree of crystallinity is high, compound with regular structure, thereby there is good mechanical property.The absolute value of Mechanical Properties of PP is higher than polyethylene, but in plastic material, still belongs to kind on the low side, and its tensile strength only can reach 30 MPa or slightly high level.The polypropylene that isotactic index is larger has higher tensile strength, but with the raising of isotactic index, the shock strength of material declines to some extent, but no longer changes after dropping to a certain numerical value.

Temperature and loading rate are very large to polyacrylic Toughness.When temperature is during higher than second-order transition temperature, impact fracture is ductile rupture, lower than second-order transition temperature, is brittle rupture, and impact value significantly declines.Improve loading rate, can make the temperature that ductile rupture changes to brittle rupture increase.Polypropylene has excellent counter-bending fatigability, its goods bent 106 times and do not damage at normal temperatures;

Polyacrylic chemical stability is fine, outside decapacitation is corroded by the vitriol oil, concentrated nitric acid, all more stable to other various chemical reagent, but low-molecular-weight aliphatic hydrocarbon, aromatic hydrocarbon and chlorinated hydrocarbon etc. can make polypropylene soften and swelling, its chemical stability also increases with the increase of degree of crystallinity simultaneously, so polypropylene is applicable to making various chemical pipelines and accessory, anticorrosion ability is good; Preparing aspect corrugated tube, polypropylene has higher Young's modulus and the lower features such as density, can meet the performance requriements of corrugated tube completely.

Summary of the invention

The object of the invention is just to provide a kind of nylon corrugated tube and preparation method thereof.

The present invention is achieved by the following technical solutions:

A nylon corrugated tube, is characterized in that what it was comprised of the raw material of following weight parts:

Phosphorous acid ester 1-2, hexabromocyclododecane 1-2, NYLON610 10-14, hydroxymethyl-2 dihydroxy-ethylene urea 0.4-1, chromium carbonate 1-2,2,2-dithienyl methyl glycolate 1-2, octyl epoxy stearate 2-4, hexagonal boron nitride 2-4, montmorillonite powder 6-8, polyvinylidene difluoride (PVDF) 2-3, dipropylene glycol 2-3, phosphoric acid dihydro amine 1-2, polypropylene 90-96, composite assistant 5-7;

Described composite assistant is comprised of the raw material of following weight parts:

Polypropylene 20-30, poly(vinylidene fluoride) 10-20, titanium nitride 1-2, silica gel silicon oil 1-2, sepiolite powder 20-30, dithiocyano-methane 0.1-0.2, the different monooctyl ester 2-3 of polyacrylic acid, ammonium octamolybdate 0.5-1,2,6 ditertiary butyl p cresol 0.4-1;

Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 100-120 ℃, Heat preservation 20-30 minute, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 200-300 rev/min of dispersed with stirring 3-5 minute, must expect a;

Sepiolite powder is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, add ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 50-60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.

A preparation method for nylon corrugated tube, comprises the following steps:

(1) above-mentioned montmorillonite powder is mixed with polyvinylidene difluoride (PVDF), add octyl epoxy stearate, 200-300 rev/min of dispersed with stirring 15-20 minute, adds hexagonal boron nitride, 2,2-dithienyl methyl glycolate, 100-200 rev/min of dispersed with stirring 20-30 minute;

(2) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.

Advantage of the present invention is:

Corrugated tube of the present invention has good resistance to elevated temperatures, is particularly suitable for doing corrugated tube material dry under hot conditions, and acid-alkali-corrosive-resisting is good, and shock-resistance is strong, and physicals is superior, good toughness, and surface hardness is high, long service life.

Embodiment

Embodiment 1

A nylon corrugated tube, it is comprised of the raw material of following weight parts:

Phosphorous acid ester 1, hexabromocyclododecane 1, NYLON610 14, hydroxymethyl-2 dihydroxy-ethylene urea 0.4, chromium carbonate 1,2,2-dithienyl methyl glycolate 2, octyl epoxy stearate 4, hexagonal boron nitride 4, montmorillonite powder 8, polyvinylidene difluoride (PVDF) 3, dipropylene glycol 3, phosphoric acid dihydro amine 2, polypropylene 96, composite assistant 5;

Described composite assistant is comprised of the raw material of following weight parts:

Polypropylene 30, poly(vinylidene fluoride) 20, titanium nitride 1, silica gel silicon oil 2, sepiolite powder 20, dithiocyano-methane 0.2, the different monooctyl ester 3 of polyacrylic acid, ammonium octamolybdate 0.5,2,6 ditertiary butyl p cresol 0.4;

Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 120 ℃, Heat preservation is 30 minutes, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 300 revs/min of dispersed with stirring 3-5 minute, must expect a;

Sepiolite powder is calcined 2 hours at 700 ℃, after discharging is cooling, added ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.

A preparation method for nylon corrugated tube, comprises the following steps:

(1) above-mentioned montmorillonite powder is mixed with polyvinylidene difluoride (PVDF), add octyl epoxy stearate, 300 revs/min of dispersed with stirring 20 minutes, add hexagonal boron nitride, 2,2-dithienyl methyl glycolate, 200 revs/min of dispersed with stirring 20 minutes;

(2) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.

Performance test:

Ring stiffness (KN/m 2): 10.5;

Dimension card heat-resisting (10N, 50 ℃/h): 160;

Drop impact (0 ℃): qualified;

Degree of corrosion (60% hydrochloric acid, 60 ℃, 165h): without layering, without cracked;

Degree of corrosion (40% sodium hydroxide, 60 ℃, 165h): without layering, without cracked;

Ring is flexible: sample is round and smooth, without reverse bending, and crack-free.

Claims (2)

1. a nylon corrugated tube, is characterized in that what it was comprised of the raw material of following weight parts:
Phosphorous acid ester 1-2, hexabromocyclododecane 1-2, NYLON610 10-14, hydroxymethyl-2 dihydroxy-ethylene urea 0.4-1, chromium carbonate 1-2,2,2-dithienyl methyl glycolate 1-2, octyl epoxy stearate 2-4, hexagonal boron nitride 2-4, montmorillonite powder 6-8, polyvinylidene difluoride (PVDF) 2-3, dipropylene glycol 2-3, phosphoric acid dihydro amine 1-2, polypropylene 90-96, composite assistant 5-7;
Described composite assistant is comprised of the raw material of following weight parts:
Polypropylene 20-30, poly(vinylidene fluoride) 10-20, titanium nitride 1-2, silica gel silicon oil 1-2, sepiolite powder 20-30, dithiocyano-methane 0.1-0.2, the different monooctyl ester 2-3 of polyacrylic acid, ammonium octamolybdate 0.5-1,2,6 ditertiary butyl p cresol 0.4-1;
Above-mentioned polypropylene is mixed with poly(vinylidene fluoride), and at 100-120 ℃, Heat preservation 20-30 minute, adds titanium nitride, grinds evenly, adds dithiocyano-methane, and 200-300 rev/min of dispersed with stirring 3-5 minute, must expect a;
Sepiolite powder is calcined to 2-3 hour at 600-700 ℃, after discharging is cooling, add ammonium octamolybdate, add after the different monooctyl ester of polyacrylic acid is heated to 50-60 ℃, under agitation condition, drip silica gel silicon oil, after dropwising, mix with material a and each raw material of residue, fully ball milling, obtains described composite assistant.
2. a preparation method for nylon corrugated tube as claimed in claim 1, is characterized in that comprising the following steps:
(1) above-mentioned montmorillonite powder is mixed with polyvinylidene difluoride (PVDF), add octyl epoxy stearate, 200-300 rev/min of dispersed with stirring 15-20 minute, adds hexagonal boron nitride, 2,2-dithienyl methyl glycolate, 100-200 rev/min of dispersed with stirring 20-30 minute;
(2) each raw material after above-mentioned processing is mixed with each raw material of residue, adopt twin screw granulation, by pellet extruding pipe material on twin screw extruder, tubing is pipe finished through cooling, cutting, hole enlargement, packing etc.
CN201410233811.6A 2014-05-29 2014-05-29 Nylon corrugated pipe CN104072862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410233811.6A CN104072862A (en) 2014-05-29 2014-05-29 Nylon corrugated pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410233811.6A CN104072862A (en) 2014-05-29 2014-05-29 Nylon corrugated pipe

Publications (1)

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CN104072862A true CN104072862A (en) 2014-10-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104312003A (en) * 2014-11-07 2015-01-28 合肥大安印刷有限责任公司 High-resistance polypropylene sheet
CN104774378A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Stable polypropylene composite material for household electric appliances
CN104774385A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Fiber reinforced polypropylene composite material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108590A (en) * 1993-10-08 1995-04-25 Nippondenso Co Ltd Plastic blow molded product for automobile
KR20110040489A (en) * 2009-10-14 2011-04-20 주식회사 엘지화학 Composites high electrical conductivity for inner layer of the automotive fuel tube
CN102050993A (en) * 2010-12-10 2011-05-11 上海金发科技发展有限公司 Flame-retardant PP/nylon corrugated tube composite material and preparation method thereof
CN102558681A (en) * 2011-12-30 2012-07-11 福建晟扬管道科技有限公司 Trenchless corrugated pipe special for electric power and preparation method thereof
CN103554664A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Nylon corrugated pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07108590A (en) * 1993-10-08 1995-04-25 Nippondenso Co Ltd Plastic blow molded product for automobile
KR20110040489A (en) * 2009-10-14 2011-04-20 주식회사 엘지화학 Composites high electrical conductivity for inner layer of the automotive fuel tube
CN102050993A (en) * 2010-12-10 2011-05-11 上海金发科技发展有限公司 Flame-retardant PP/nylon corrugated tube composite material and preparation method thereof
CN102558681A (en) * 2011-12-30 2012-07-11 福建晟扬管道科技有限公司 Trenchless corrugated pipe special for electric power and preparation method thereof
CN103554664A (en) * 2013-10-30 2014-02-05 安徽国通高新管业股份有限公司 Nylon corrugated pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104312003A (en) * 2014-11-07 2015-01-28 合肥大安印刷有限责任公司 High-resistance polypropylene sheet
CN104774378A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Stable polypropylene composite material for household electric appliances
CN104774385A (en) * 2015-03-26 2015-07-15 安徽海纳川塑业科技有限公司 Fiber reinforced polypropylene composite material

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