CN104987572A - High-abrasion-resistance silane crosslinked polyethylene insulation composite material and preparation method thereof - Google Patents
High-abrasion-resistance silane crosslinked polyethylene insulation composite material and preparation method thereof Download PDFInfo
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- CN104987572A CN104987572A CN201510354450.5A CN201510354450A CN104987572A CN 104987572 A CN104987572 A CN 104987572A CN 201510354450 A CN201510354450 A CN 201510354450A CN 104987572 A CN104987572 A CN 104987572A
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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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/04—Carbon
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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
- 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
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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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
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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
- C08K9/04—Ingredients treated with organic substances
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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
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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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- 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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Abstract
The invention discloses a high-abrasion-resistance silane crosslinked polyethylene insulation composite material. The high-abrasion-resistance silane crosslinked polyethylene insulation composite material is characterized by comprising, by weight, 120-150 parts of low-density polyethylene resin, 10-15 parts of quartz powder, 5-10 parts of graphite powder, 1-2 parts of sodium tripolyphosphate, 3-5 parts of emery powder, 3-5 parts of linear phenolic resin, 2-4 parts of polypropylene glycol, 1-2 parts of lauric acid, 0.5-1 part of phenyl methane diisocyanate, 1-2 parts of simethicone, 1-2 parts of erucyl amide and 3-6 parts of silane complex agents. The high-abrasion-resistance silane crosslinked polyethylene insulation composite material has good strength, tenacity and weather fastness, and is good in water resistance and corrosion resistance, superior in abrasion resistance, not prone to abrasion and good in use performance.
Description
Technical field
The present invention relates to field of compound material, be specifically related to a kind of high abrasion organosilane crosslinked 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 high abrasion organosilane crosslinked 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 high abrasion organosilane crosslinked polyethylene insulation matrix material, it is obtained by the raw material of following weight parts:
Ldpe resin 120-150, silica powder 10-15, Graphite Powder 99 5-10, tripoly phosphate sodium STPP 1-2, lapis amiridis 3-5, linear phenolic resin 3-5, polypropylene glycol 2-4, lauric acid 1-2, diphenylmethanediisocyanate 0.5-1, dimethyl silicone oil 1-2, erucicamide 1-2, silane recombiner 3-6;
Wherein silane recombiner is obtained by the raw material of following weight parts: silane coupling A-151 1-3, aluminate coupling agent DL-411-A 0.3-0.5, 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.
A preparation method for high abrasion organosilane crosslinked polyethylene insulation matrix material, comprises the following steps:
(1) co-ground 0.5-1h after silica powder, Graphite Powder 99 and lapis amiridis being mixed with tripoly phosphate sodium STPP, wash and after filtering by filter cake in 600-800 DEG C of calcination 0.5-1h, mistake 600-800 mesh sieve, obtains 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) linear phenolic resin is added after being mixed with the base polyurethane prepolymer for use as in (2) by the mixed fillers in (1), 1-2h is stirred prior to 800-1000r/min, add lauric acid and the common ball milling 2-4h of dimethyl silicone oil again, 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 high abrasion organosilane crosslinked 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; Composite simultaneously by all the other raw materials, makes the organosilane crosslinked polyethylene insulation matrix material obtained have good intensity, toughness, weathering resistance and water-fast, corrosion resistance nature good, have excellent wear resistance, not easy to wear, use properties is good simultaneously.
Embodiment
Non-limiting examples of the present invention is as follows:
A kind of high abrasion organosilane crosslinked polyethylene insulation matrix material, is prepared from by the component raw material of following weight (kg):
Ldpe resin 140, silica powder 12, Graphite Powder 99 8, tripoly phosphate sodium STPP 1.5, lapis amiridis 4, linear phenolic resin 4, polypropylene glycol 3, lauric acid 1.5, diphenylmethanediisocyanate 0.8, dimethyl silicone oil 1.5, erucicamide 1.5, silane recombiner 4;
Wherein silane recombiner is obtained by the component raw material of following weight (kg): silane coupling A-151 2, aluminate coupling agent DL-411-A 0.4, fluorocarbon surfactant FC-4430 0.3, 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-443 800r/min stirring 3min again after stirring 15min, to obtain final product.
The preparation method of high abrasion organosilane crosslinked polyethylene insulation matrix material comprises the following steps:
(1) co-ground 0.5-1h after silica powder, Graphite Powder 99 and lapis amiridis being mixed with tripoly phosphate sodium STPP, wash and after filtering by filter cake in 800 DEG C of calcination 0.5h, mistake 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 lauric acid and the common ball milling 2h of dimethyl silicone 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 high abrasion organosilane crosslinked 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) | 22.6MPa |
2 | Elongation at break (%) | 655 |
3 | Heat aging performance DEG C × h | 135×168 |
3.1 | Tensile strength velocity of variation (%) | +10 |
3.2 | Elongation at break velocity of variation (%) | -8 |
Claims (2)
1. a high abrasion organosilane crosslinked polyethylene insulation matrix material, is characterized in that, it is obtained by the raw material of following weight parts:
Ldpe resin 120-150, silica powder 10-15, Graphite Powder 99 5-10, tripoly phosphate sodium STPP 1-2, lapis amiridis 3-5, linear phenolic resin 3-5, polypropylene glycol 2-4, lauric acid 1-2, diphenylmethanediisocyanate 0.5-1, dimethyl silicone oil 1-2, erucicamide 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, aluminate coupling agent DL-411-A 0.3-0.5, 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 high abrasion organosilane crosslinked polyethylene insulation matrix material according to claim 1, is characterized in that, comprise the following steps:
(1) co-ground 0.5-1h after silica powder, Graphite Powder 99 and lapis amiridis being mixed with tripoly phosphate sodium STPP, wash and after filtering by filter cake in 600-800 DEG C of calcination 0.5-1h, mistake 600-800 mesh sieve, obtains 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 lauric acid and the common ball milling 2-4h of dimethyl silicone 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 high abrasion organosilane crosslinked polyethylene insulation matrix material.
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CN109749197A (en) * | 2018-12-25 | 2019-05-14 | 安徽辰源电气有限公司 | A kind of wear-resistant cable sheath and preparation method thereof |
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Cited By (1)
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Application publication date: 20151021 |