CN105017606A - Corrosion-resistant silane crosslinked polyethylene insulation composite material and preparation method thereof - Google Patents

Corrosion-resistant silane crosslinked polyethylene insulation composite material and preparation method thereof Download PDF

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CN105017606A
CN105017606A CN201510354396.4A CN201510354396A CN105017606A CN 105017606 A CN105017606 A CN 105017606A CN 201510354396 A CN201510354396 A CN 201510354396A CN 105017606 A CN105017606 A CN 105017606A
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weight
parts
polyethylene insulation
corrosion
resistant silane
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吴春云
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Hefei Lanke New Materials Co Ltd
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Hefei Lanke New Materials Co Ltd
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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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • 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
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • 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
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • 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
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • 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)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking
    • C08L2312/08—Crosslinking by silane

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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)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a corrosion-resistant silane crosslinked polyethylene insulation composite material. The corrosion-resistant silane crosslinked polyethylene insulation composite material is prepared from 120-150 parts by weight of low density polyethylene resin, 3-5 parts by weight of phenolic novolac resin, 5-10 parts by weight of glass fibers, 10-15 parts by weight of barite powder, 1-2 parts by weight of titanium dioxide, 2-3 parts by weight of polypropylene glycol, 0.3-0.5 parts by weight of diphenyl-methane-diisocyanate, 1-2 parts by weight of hydrogenated castor oil, 1-2 parts by weight of N,N'-ethylenebis(stearamide) and 3-6 parts by weight of a silane complexing agent. The corrosion-resistant silane crosslinked polyethylene insulation composite material has the advantages of good strength, good toughness, weatherability, water resistance, excellent corrosion resistance, high safety and wide application range.

Description

A kind of corrosion resistant silane cross-linked polyethylene insulation matrix material and preparation method thereof
Technical field
The present invention relates to field of compound material, be specifically related to a kind of corrosion resistant silane cross-linked polyethylene insulation matrix material and preparation method thereof.
Background technology
Polyethylene production is large, abundance, cheap, be a kind of broad-spectrum resin.But poly consistency is low, weathering resistance and mechanical property Shortcomings, over-all properties is poor, needs improving SNR.Wherein, carrying out cross-linking modified to polyethylene is one of important means improving polyethylene performance, can improve the mechanical property of polyethylene products, chemical resistance and resistance to cracking energy etc., widen poly range of application.
Polyethylene crosslinking technology comprises radiation crosslinking, peroxide crosslinking, crosslinked with silicane etc., and wherein organosilane crosslinked polyethylene has that processing unit is simple, the feature of flexible and convenient operation, good economy performance, is paid close attention to widely and payes attention to.Organosilane crosslinked polyethylene has good insulating property, in being mainly used in, the production of low tension wire, cable, has good market outlook and high economic benefit.Along with further developing of the market requirement, silane crosslinked polyethylene also needs the defect improving the aspect such as mechanical property, weathering resistance further, and develop skill index, thus meets the particular requirement of every field.
Summary of the invention
The object of this invention is to provide a kind of corrosion resistant silane cross-linked polyethylene insulation matrix material, mechanical property, weathering resistance are good, and use properties is good.
The present invention is achieved by the following technical solutions:
A kind of corrosion resistant silane cross-linked polyethylene insulation matrix material, it is obtained by the raw material of following weight parts:
Ldpe resin 120-150, linear phenolic resin 3-5, glass fibre 5-10, ground barium sulfate 10-15, titanium dioxide 1-2, polypropylene glycol 2-3, diphenylmethanediisocyanate 0.3-0.5, hydrogenated castor oil 1-2, ethylene bis stearamide 1-2, silane recombiner 3-6;
Wherein silane recombiner is obtained by the raw material of following weight parts: silane coupling A-1511-3, fluorocarbon surfactant FC-44300.2-0.4, dicumyl peroxide 0.05-0.1, dibutyl tin laurate 0.1-0.2, antioxidant 1010 0.2-0.5; Preparation method is by the mixing of silane coupling A-151, dicumyl peroxide, dibutyl tin laurate and antioxidant 1010 and 200-400r/min adds fluorocarbon surfactant FC-443600-800r/min stirring 3-5min again after stirring 10-15min, to obtain final product.
A preparation method for corrosion resistant silane cross-linked polyethylene insulation matrix material, comprises the following steps:
(1) by 800-900 DEG C of calcining 1-2h after the mixing of glass fibre, ground barium sulfate and titanium dioxide, after cooling, grinding evenly, crosses 600-800 mesh sieve, obtain mixed fillers;
(2) polypropylene glycol is added vacuum-drying 0.5-1h in reactor, then temperature is adjusted to 70-80 DEG C, and add diphenylmethanediisocyanate 200-400r/min stirring reaction 2-4h under vacuum condition, obtain base polyurethane prepolymer for use as;
(3) add linear phenolic resin after being mixed with the base polyurethane prepolymer for use as in (2) by the mixed fillers in (1), stir 1-2h prior to 800-1000r/min, then add the common ball milling 2-4h of hydrogenated castor oil, obtain modified filler;
(4) first the modified filler in (3) is mixed with ldpe resin, add all the other raw materials again and mix 5-10min under 80-90 DEG C of condition in high-speed mixer, melt extrude finally by twin screw extruder 165-195 DEG C, granulation, packaging, obtain corrosion resistant silane cross-linked polyethylene insulation matrix material.
Advantage of the present invention is:
The present invention is cross-linked polyvinyl resin by fluorocarbon surfactant and the composite silane recombiner of silane coupling agent, improve the weathering resistance of matrix material, water tolerance, by base polyurethane prepolymer for use as and resol, composite modified process is carried out to filler simultaneously, both the toughness of filler had been improved, be conducive to the tensile property improving matrix material, turn improve the consistency between filler and matrix, filler is uniformly dispersed in resin, play the effect of reinforcement increase-volume, improve the physical strength of matrix material; Pass through the composite of all the other raw materials simultaneously, make the organosilane crosslinked polyethylene insulation matrix material obtained have good intensity, toughness, weathering resistance and water resistance well, have excellent corrosion resistance nature simultaneously, safe to use, have wide range of applications.
Embodiment
Non-limiting examples of the present invention is as follows:
A kind of corrosion resistant silane cross-linked polyethylene insulation matrix material, is prepared from by the component raw material of following weight (kg):
Ldpe resin 140, linear phenolic resin 4, glass fibre 8, ground barium sulfate 12, titanium dioxide 1.5, polypropylene glycol 2.5, diphenylmethanediisocyanate 0.4, hydrogenated castor oil 1.5, ethylene bis stearamide 1.5, silane recombiner 5;
Wherein silane recombiner is obtained by the component raw material of following weight (kg): silane coupling A-1512, fluorocarbon surfactant FC-44300.3, dicumyl peroxide 0.08, dibutyl tin laurate 0.15, antioxidant 1010 0.4; Preparation method is by the mixing of silane coupling A-151, dicumyl peroxide, dibutyl tin laurate and antioxidant 1010 and 200r/min adds fluorocarbon surfactant FC-443800r/min stirring 3min again after stirring 15min, to obtain final product.
The preparation method of corrosion resistant silane cross-linked polyethylene insulation matrix material comprises the following steps:
(1) by rear for the mixing of glass fibre, ground barium sulfate and titanium dioxide 900 DEG C of calcining 1h, after cooling, grinding evenly, crosses 800 mesh sieves, obtain mixed fillers;
(2) polypropylene glycol is added vacuum-drying 0.5h in reactor, then temperature is adjusted to 80 DEG C, and add diphenylmethanediisocyanate 400r/min stirring reaction 2h under vacuum condition, obtain base polyurethane prepolymer for use as;
(3) add linear phenolic resin after being mixed with the base polyurethane prepolymer for use as in (2) by the mixed fillers in (1), stir 1h prior to 1000r/min, then add the common ball milling 2h of hydrogenated castor oil, obtain modified filler;
(4) first the modified filler in (3) is mixed with ldpe resin, add all the other raw materials again and mix 5min under 90 DEG C of conditions in high-speed mixer, melt extrude finally by twin screw extruder 165-195 DEG C, granulation, packaging, obtain corrosion resistant silane cross-linked polyethylene insulation matrix material.
Carry out performance test to above-mentioned obtained matrix material, result is as shown in table 1:
Table 1 organosilane crosslinked polyethylene insulation composite property test result
Numbering Project
1 Tensile strength (MPa) 26.5MPa
2 Elongation at break (%) 673
3 Heat aging performance DEG C × h 135×168
3.1 Tensile strength velocity of variation (%) +9
3.2 Elongation at break velocity of variation (%) -9

Claims (2)

1. a corrosion resistant silane cross-linked polyethylene insulation matrix material, is characterized in that, it is obtained by the raw material of following weight parts:
Ldpe resin 120-150, linear phenolic resin 3-5, glass fibre 5-10, ground barium sulfate 10-15, titanium dioxide 1-2, polypropylene glycol 2-3, diphenylmethanediisocyanate 0.3-0.5, hydrogenated castor oil 1-2, ethylene bis stearamide 1-2, silane recombiner 3-6;
Described silane recombiner is obtained by the raw material of following weight parts: silane coupling A-151 1-3, fluorocarbon surfactant FC-4430 0.2-0.4, dicumyl peroxide 0.05-0.1, dibutyl tin laurate 0.1-0.2, antioxidant 1010 0.2-0.5; Preparation method is by the mixing of silane coupling A-151, dicumyl peroxide, dibutyl tin laurate and antioxidant 1010 and 200-400r/min adds fluorocarbon surfactant FC-443 600-800r/min stirring 3-5min again after stirring 10-15min, to obtain final product.
2. the preparation method of a kind of corrosion resistant silane cross-linked polyethylene insulation matrix material according to claim 1, is characterized in that, comprise the following steps:
(1) by 800-900 DEG C of calcining 1-2h after the mixing of glass fibre, ground barium sulfate and titanium dioxide, after cooling, grinding evenly, crosses 600-800 mesh sieve, obtain mixed fillers;
(2) polypropylene glycol is added vacuum-drying 0.5-1h in reactor, then temperature is adjusted to 70-80 DEG C, and add diphenylmethanediisocyanate 200-400r/min stirring reaction 2-4h under vacuum condition, obtain base polyurethane prepolymer for use as;
(3) add linear phenolic resin after being mixed with the base polyurethane prepolymer for use as in (2) by the mixed fillers in (1), stir 1-2h prior to 800-1000r/min, then add the common ball milling 2-4h of hydrogenated castor oil, obtain modified filler;
(4) first the modified filler in (3) is mixed with ldpe resin, add all the other raw materials again and mix 5-10min under 80-90 DEG C of condition in high-speed mixer, melt extrude finally by twin screw extruder 165-195 DEG C, granulation, packaging, obtain corrosion resistant silane cross-linked polyethylene insulation matrix material.
CN201510354396.4A 2015-06-25 2015-06-25 Corrosion-resistant silane crosslinked polyethylene insulation composite material and preparation method thereof Pending CN105017606A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105906901A (en) * 2016-04-27 2016-08-31 郭良来 Plastic inspection well and method for preparing same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102002181A (en) * 2010-12-23 2011-04-06 南京聚隆科技股份有限公司 High-toughness and high-strength polyethylene composite material and preparation method thereof
CN102443211A (en) * 2010-11-03 2012-05-09 如皋市中如化工有限公司 Organosilane crosslinked polyethylene cable material and preparation process thereof
CN102942761A (en) * 2012-10-24 2013-02-27 常州大学 Low smoke halogen-free environment-protection fire-retardation type sheet molding compound and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102443211A (en) * 2010-11-03 2012-05-09 如皋市中如化工有限公司 Organosilane crosslinked polyethylene cable material and preparation process thereof
CN102002181A (en) * 2010-12-23 2011-04-06 南京聚隆科技股份有限公司 High-toughness and high-strength polyethylene composite material and preparation method thereof
CN102942761A (en) * 2012-10-24 2013-02-27 常州大学 Low smoke halogen-free environment-protection fire-retardation type sheet molding compound and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105906901A (en) * 2016-04-27 2016-08-31 郭良来 Plastic inspection well and method for preparing same

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