CN105950052A - Rare-earth-modified-montmorillonite-added modified PVC (polyvinyl chloride) microporous insulation binder - Google Patents
Rare-earth-modified-montmorillonite-added modified PVC (polyvinyl chloride) microporous insulation binder Download PDFInfo
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Abstract
The invention discloses a rare-earth-modified-montmorillonite-added modified PVC (polyvinyl chloride) microporous insulation binder which is prepared from the following raw materials in parts by weight: 1.5-1.6 parts of halloysite nanotube, 0.75-0.77 part of silane coupling agent kh570, a right amount of deionized water, a right amount of anhydrous ethanol, 1.2-1.4 parts of lauryl sodium sulfate, 1.4-1.5 parts of alkylphenol polyoxyethylene, 55-60 parts of butyl acrylate, 40-43 parts of 2-ethylhexyl acrylate, 40-44 parts of isotactic polypropylene, 53-55 parts of polyvinyl chloride, 3-4 parts of dibenzylidene sorbitol, a right amount of dioctyl phthalate, 3-4 parts of glass fiber, 12-13 parts of sodium-base montmorillonite, 7-8 parts of 0.4 mol/L lanthanum chloride solution, 1.5-1.6 parts of sodium monododecyl phosphate, 3-4 parts of poly-4-methyl-1-pentene and 2-3 parts of white wax oil. The product disclosed by the invention has excellent adhesiveness, insulativity and heat stability.
Description
Technical field
The present invention relates to technical field of electricity, particularly relate to a kind of modified PVC micropore adding rare earth modified montmorillonite exhausted
Edge binder.
Background technology
Insulating bag band is mainly used as looping electric wire, the joint of cable, interface, in addition to for the insulation of common electrical, also
Be widely used in engineering pipeline protection, in peep route protection and automotive wire bundle ties up the fields such as protection.The fabricbase of prior art is exhausted
Edge adhesive tape is made up of fabricbase and rubber, Colophonium, filler coatings glue, has preferable mechanical strength and an insulation effect, but cloth
Base adhesive tape is the most aging, water proofing property, poor sealing performance, and at high temperature under high pressure, the shielding properties of adhesive tape is greatly reduced, and causing cannot
For more field.Existing poly-nitrogen ethylene pressure-sensitive tape is a kind of universal electric sticking tape, and it is cheap, has
Excellent electric property and physical and mechanical property, electrical strength is up to 60kV/mm, and specific insulation is high, has soft and easy-to-draw
The feature such as stretch, also there is the features such as excellent acid and alkali-resistance, ageing-resistant, cold-resistant and moisture-proof, be widely used in the company of alternating current-direct current electric wire
Connect winding and being wrapped of insulation protection, the manufacture of electrical equipment, various wire harness and cable, its shortcoming be heatproof rank not
Height, heat dispersion is poor.
" be applicable to emulsion pressure-sensitive adhesive and the manufacture method thereof of flexible PVC electric adhesive tape " article, although
The advantages such as the adhesive tape softening point made is low, cohesive force strong, quick solidifying, but owing to the straight-chain molecular structure of polyacrylate determines
Its performance such as thermostability and mechanical strength is not enough, in addition development of Acrylate Emulsion Pressure-Sensitive Adhesive coating and rate of drying is slow, be dried
The shortcomings such as energy consumption is high and surface tension is higher make it apply to be restricted, for widening its range, improve its combination property,
There is a need to polrvinyl chloride base material and acrylate pressure-sensitive adhesive are modified.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of modification adding rare earth modified montmorillonite
PVC microporous insulation binder.
The present invention is achieved by the following technical solutions:
A kind of modified PVC microporous insulation binder adding rare earth modified montmorillonite, is made up of the raw material of following weight portion:
Halloysite nanotubes 1.5-1.6, silane coupler kh5700.75-0.77, deionized water is appropriate, dehydrated alcohol is appropriate, dodecane
Base sodium sulfate 1.2-1.4, alkylphenol polyoxyethylene 1.4-1.5, butyl acrylate 55-60, Isooctyl acrylate monomer 40-43, etc.
Isotactic polypropylene 40-44, polrvinyl chloride 53-55, dibenzylidene sorbitol 3-4, dioctyl phthalate are appropriate, glass fibre
3-4, sodium-based montmorillonite 12-13, concentration are the lanthanum chloride solution 7-8 of 0.4mol/L, mono phosphoric acid ester dodecyl ester sodium salt 1.5-
1.6, poly(4-methyl-1-pentene) 3-4, white beeswax oil 2-3.
Described a kind of modified PVC microporous insulation binder adding rare earth modified montmorillonite, is made up of step in detail below:
(1) ultrasonic disperse in the dehydrated alcohol of addition 30-35 times amount in galapectite is obtained suspension in 40-50 minute, then add
Enter the deionized water with dehydrated alcohol equivalent and silane coupler kh570, be heated to 70-75 DEG C, after stirring is reacted 24 hours
Mixture is centrifuged with the speed of 4000 revs/min, and washs to neutral, the product obtained in vacuum drying oven with 90-
100 DEG C of drying, obtain modified halloysite nanotubes;
(2) by modified halloysite nanotubes ultrasonic disperse in the deionized water of 80-85 times amount, be subsequently adding butyl acrylate,
Isooctyl acrylate monomer, sodium lauryl sulphate, stir on magnetic stirrer, then heats to 80-85 DEG C, adds half
The alkylphenol polyoxyethylene of amount, continuously adds remaining alkylphenol polyoxyethylene after being incubated 30-60 minute, is warming up to 90-
95 DEG C, it is cooled to room temperature after being incubated 60-90 minute, obtains modified acrylic acid emulsion;
(3) being put into by sodium-based montmorillonite in the deionized water of 30-35 times amount, adding concentration after mechanical agitation 1.5-2 hour is
The lanthanum chloride solution of 0.4mol/L, is heated to 60-65 DEG C, and stirring reaction added mono phosphoric acid ester dodecyl ester sodium after 90-120 minute
Salt, continues insulation reaction 90-120 minute, centrifugal, is washed with deionized, is finally vacuum dried, grinds, crosses 400 mesh sieves,
To rare earth modified montmorillonite;
(4) polrvinyl chloride, isotactic polypropylene mixing are put in reactor, be subsequently adding the O-phthalic of total amount 3.5-4 times amount
Dioctyl phthalate and remaining residual components, add step (3) after stirring 60-90 minute at 180 DEG C and obtain under nitrogen protective condition
The rare earth modified montmorillonite arrived, continues insulation and forms casting solution in 2-3 hour, by knifing machine, casting solution is made Flat Membrane, control
It is 180 DEG C that system scrapes film temperature, finally by Thermal inactive technology, immerses 25 DEG C of solidification water-baths through Flat Membrane and is separated,
Extract through dehydrated alcohol again, after drying, obtain polypropylene polrvinyl chloride composite micro porous film;
(5) modified acrylic acid emulsion coating device is uniformly coated on polypropylene polrvinyl chloride composite micro porous film surface, is put
Toast 3-4 minute at 75-80 DEG C of baking oven, be subsequently placed in 40 DEG C of constant temperature ageing ovens aging 24 hours, finally cut into banding, i.e.
?.
The invention have the advantage that Thermal inactive method is applied to pressure sensitive insulating wrapping band base film by the present invention
In preparation, the composite microporous thin film of polypropylene polrvinyl chloride made, the advantage having polypropylene and polrvinyl chloride concurrently, waterproof, heat-resisting
Property is good, resistance to chemical attack, and porosity is moderate simultaneously, is evenly distributed, and micropore communicates with air, can form air insulation structure,
Heat dispersion is excellent simultaneously;Polyacrylate dispersion is changed by the present invention also by the mode adding modified halloysite nanotubes
Property, the activeness and quietness of modified halloysite nanotubes and the strong interaction with polymeric substrate thereof, so that polymer molecule
Chain mobility is deteriorated so that the pressure sensitive adhesive cohesive strength made and creep-resistant property are remarkably reinforced, and the heat that improve pressure sensitive adhesive is steady
Qualitative and heat-resisting quantity, has good peel strength and initial bonding strength simultaneously.
The present invention is prepared for rare earth modified montmorillonite by a series of technique, adds in the preparation of microporous membrane, with
Polymer compatibility is good, thus improves the tensile strength of microporous membrane, further increases the heat stability of thin film simultaneously;This
The product that invention is made has excellent cohesiveness, insulating properties and heat stability, solves existing product poor heat stability
Problem.
Detailed description of the invention
A kind of modified PVC microporous insulation binder adding rare earth modified montmorillonite, former by following weight portion (kilogram)
Material preparation make: halloysite nanotubes 1.5, silane coupler kh5700.75, deionized water is appropriate, dehydrated alcohol is appropriate, 12
Alkyl sodium sulfate 1.2, alkylphenol polyoxyethylene 1.4, butyl acrylate 55, Isooctyl acrylate monomer 40, isotactic polypropylene 40, poly-
Vinyl chloride 53, dibenzylidene sorbitol 3, dioctyl phthalate are appropriate, glass fibre 3, sodium-based montmorillonite 12, concentration are
The lanthanum chloride solution 7 of 0.4mol/L, mono phosphoric acid ester dodecyl ester sodium salt 1.5, poly-4 methylpentenes 3, white beeswax oil 2.
Described a kind of modified PVC microporous insulation binder adding rare earth modified montmorillonite, is made up of step in detail below:
(1) within 40 minutes, obtain suspension by galapectite adds ultrasonic disperse in the dehydrated alcohol of 30 times amount, be subsequently adding and nothing
The deionized water of water-ethanol equivalent and silane coupler kh570, be heated to 70 DEG C, stirring reaction 24 hours after by mixture with
The speed of 4000 revs/min is centrifuged, and washs to neutral, and the product obtained with 90 DEG C of drying, obtains in vacuum drying oven
Modified halloysite nanotubes;
(2) by modified halloysite nanotubes ultrasonic disperse in the deionized water of 80 times amount, it is subsequently adding butyl acrylate, propylene
Acid different monooctyl ester, sodium lauryl sulphate, stir on magnetic stirrer, then heat to 80 DEG C, adds the alkane of half amount
Base phenol polyethenoxy ether, continuously adds remaining alkylphenol polyoxyethylene after being incubated 30 minutes, is warming up to 90 DEG C, is incubated 60 points
It is cooled to room temperature after clock, obtains modified acrylic acid emulsion;
(3) being put into by sodium-based montmorillonite in the deionized water of 30 times amount, mechanical agitation adds concentration after 1.5 hours be 0.4mol/L
Lanthanum chloride solution, be heated to 60 DEG C, stirring reaction 90 minutes after add mono phosphoric acid ester dodecyl ester sodium salt, continue insulation reaction
90 minutes, centrifugal, it is washed with deionized, is finally vacuum dried, grinds, crosses 400 mesh sieves, obtain rare earth modified montmorillonite;
(4) polrvinyl chloride, isotactic polypropylene mixing are put in reactor, be subsequently adding the phthalic acid of total amount 3.5 times amount
Dioctyl ester and remaining residual components, under nitrogen protective condition 180 DEG C stirring 60 minutes after add step (3) obtain dilute
Soil modified montmorillonoid, continues insulation and forms casting solution in 2 hours, by knifing machine, casting solution is made Flat Membrane, controls knifing temperature
Degree is 180 DEG C, finally by Thermal inactive technology, immerses 25 DEG C of solidification water-baths through Flat Membrane and is separated, then through anhydrous
Ethanol extracts, and obtains polypropylene polrvinyl chloride composite micro porous film after drying;
(5) modified acrylic acid emulsion coating device is uniformly coated on polypropylene polrvinyl chloride composite micro porous film surface, is put
Toast 3 minutes at 75 DEG C of baking ovens, be subsequently placed in 40 DEG C of constant temperature ageing ovens aging 24 hours, finally cut into banding, to obtain final product.
The insulating bag band that the present invention makes, by test, the hot strength of product more than 15 newton/centimetre, meet state
Family's standard;Take appropriate amount of sample when being pasted onto on sample board, with the speed rolling three times back and forth of 300 millis m/min, deposit 30 minutes,
180 ° of peel strengths are up to state standards.
Claims (2)
1. the modified PVC microporous insulation binder adding rare earth modified montmorillonite, it is characterised in that by following weight portion
Raw material is made: halloysite nanotubes 1.5-1.6, silane coupler kh5700.75-0.77, deionized water second appropriate, anhydrous
Alcohol is appropriate, sodium lauryl sulphate 1.2-1.4, alkylphenol polyoxyethylene 1.4-1.5, butyl acrylate 55-60, acrylic acid are different
Monooctyl ester 40-43, isotactic polypropylene 40-44, polrvinyl chloride 53-55, dibenzylidene sorbitol 3-4, dioctyl phthalate
In right amount, glass fibre 3-4, sodium-based montmorillonite 12-13, concentration are the lanthanum chloride solution 7-8 of 0.4mol/L, mono phosphoric acid ester dodecyl
Ester sodium salt 1.5-1.6, poly(4-methyl-1-pentene) 3-4, white beeswax oil 2-3.
A kind of modified PVC microporous insulation binder adding rare earth modified montmorillonite, its feature exists
In, it is made up of step in detail below:
(1) ultrasonic disperse in the dehydrated alcohol of addition 30-35 times amount in galapectite is obtained suspension in 40-50 minute, then add
Enter the deionized water with dehydrated alcohol equivalent and silane coupler kh570, be heated to 70-75 DEG C, after stirring is reacted 24 hours
Mixture is centrifuged with the speed of 4000 revs/min, and washs to neutral, the product obtained in vacuum drying oven with 90-
100 DEG C of drying, obtain modified halloysite nanotubes;
(2) by modified halloysite nanotubes ultrasonic disperse in the deionized water of 80-85 times amount, be subsequently adding butyl acrylate,
Isooctyl acrylate monomer, sodium lauryl sulphate, stir on magnetic stirrer, then heats to 80-85 DEG C, adds half
The alkylphenol polyoxyethylene of amount, continuously adds remaining alkylphenol polyoxyethylene after being incubated 30-60 minute, is warming up to 90-
95 DEG C, it is cooled to room temperature after being incubated 60-90 minute, obtains modified acrylic acid emulsion;
(3) being put into by sodium-based montmorillonite in the deionized water of 30-35 times amount, adding concentration after mechanical agitation 1.5-2 hour is
The lanthanum chloride solution of 0.4mol/L, is heated to 60-65 DEG C, and stirring reaction added mono phosphoric acid ester dodecyl ester sodium after 90-120 minute
Salt, continues insulation reaction 90-120 minute, centrifugal, is washed with deionized, is finally vacuum dried, grinds, crosses 400 mesh sieves,
To rare earth modified montmorillonite;
(4) polrvinyl chloride, isotactic polypropylene mixing are put in reactor, be subsequently adding the O-phthalic of total amount 3.5-4 times amount
Dioctyl phthalate and remaining residual components, add step (3) after stirring 60-90 minute at 180 DEG C and obtain under nitrogen protective condition
The rare earth modified montmorillonite arrived, continues insulation and forms casting solution in 2-3 hour, by knifing machine, casting solution is made Flat Membrane, control
It is 180 DEG C that system scrapes film temperature, finally by Thermal inactive technology, immerses 25 DEG C of solidification water-baths through Flat Membrane and is separated,
Extract through dehydrated alcohol again, after drying, obtain polypropylene polrvinyl chloride composite micro porous film;
(5) modified acrylic acid emulsion coating device is uniformly coated on polypropylene polrvinyl chloride composite micro porous film surface, is put
Toast 3-4 minute at 75-80 DEG C of baking oven, be subsequently placed in 40 DEG C of constant temperature ageing ovens aging 24 hours, finally cut into banding, i.e.
?.
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