CN106010333A - Microporous compound insulation binder with enhanced heat radiation performance - Google Patents

Abstract

The invention discloses a microporous compound insulation binder with enhanced heat radiation performance. The microporous compound insulation binder is prepared from, by weight, 1.5-1.6 parts of halloysite nanotubes, 0.75-0.77 part of silane coupling agent kh570, a proper amount of deionized water, a proper amount of absolute ethyl alcohol, 1.2-1.4 parts of lauryl sodium sulfate, 1.4-1.5 parts of alkylphenol ethoxylate, 55-60 parts of butyl acrylate, 40-43 parts of 2-ethylhexyl acrylate, 40-44 parts of isotatic polypropylene, 53-55 parts of polyvinyl chloride, 3-4 parts of dibenzylidene sorbitol, a proper amount of dioctyl phthalate, 6-7 parts of boron nitride, 2-3 parts of chlorinated paraffin, 5-6 parts of chlorinated polypropylene and 1-1.2 parts of dibutyltin dilaurate. The prepared microporous compound insulation binder is high in viscidity, excellent in heat conduction and heat radiation performance and capable of being used for binding up high-voltage cables and the like.

Description

A kind of pore type compound inslation binder strengthened that dispels the heat

Technical field

The present invention relates to technical field of electricity, particularly relate to a kind of pore type compound inslation binder dispelling the heat and strengthening.

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 pore type compound inslation strengthened that dispels the heat Binder.

The present invention is achieved by the following technical solutions:

A kind of pore type compound inslation binder strengthened that dispels the heat, is made up of the raw material of following weight portion: galapectite nanometer Pipe 1.5-1.6, silane coupler kh5700.75-0.77, deionized water is appropriate, dehydrated alcohol is appropriate, sodium lauryl sulphate 1.2-1.4, alkylphenol polyoxyethylene 1.4-1.5, butyl acrylate 55-60, Isooctyl acrylate monomer 40-43, isotactic polypropylene 40-44, polrvinyl chloride 53-55, dibenzylidene sorbitol 3-4, dioctyl phthalate are appropriate, boron nitride 6-7, chlorination stone Wax 2-3, chlorinated polypropylene 5-6, dibutyl tin laurate 1-1.2.

Described a kind of pore type compound inslation binder strengthened that dispels the heat, 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) chlorinated polyethylene is heated to melted stand-by, boron nitride is put in ball mill, add chlorinated paraffin, be heated to 60- 70 DEG C of ball millings mixed with melted chlorinated polypropylene after 30-40 minute, put into extruding pelletization in comminutor agent, were pulverized by granule, Cross 400 mesh sieves；

(4) isotactic polypropylene, polrvinyl chloride 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 powder arrived, continues insulation and forms casting solution in 2-3 hour, by knifing machine, casting solution is made Flat Membrane, control to scrape film temperature It is 180 DEG C, finally by Thermal inactive technology, immerses 25 DEG C of solidification water-baths through Flat Membrane and be separated, then through anhydrous second Alcohol 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 3-4 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.

Boron nitride is become with chlorinated polypropylene etc. while preparing composite microporous thin film by the present invention by specific technique Divide and add wherein, while improve the compatibility of polypropylene and polrvinyl chloride, further increase the heat conductivility of product, system The product viscosity become is big, and heat conduction and heat radiation excellent performance can serve as the wrapping etc. of high voltage cable.

Detailed description of the invention

A kind of pore type compound inslation binder strengthened that dispels the heat, is made up of the raw material of following weight portion (kilogram): Halloysite nanotubes 1.5, silane coupler kh5700.75, deionized water is appropriate, dehydrated alcohol is appropriate, sodium lauryl sulphate 1.2, alkylphenol polyoxyethylene 1.4, butyl acrylate 55, Isooctyl acrylate monomer 40, isotactic polypropylene 40, polrvinyl chloride 53, Dibenzylidene sorbitol 3, dioctyl phthalate are appropriate, boron nitride 6, chlorinated paraffin 2, chlorinated polypropylene 5, tin dilaurate Dibutyl tin 1.

Described a kind of pore type compound inslation binder strengthened that dispels the heat, 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) chlorinated polyethylene is heated to melted stand-by, boron nitride is put in ball mill, add chlorinated paraffin, be heated to 60 DEG C ball milling mix with melted chlorinated polypropylene after 30 minutes, put into extruding pelletization in comminutor agent, was pulverized by granule, mistake 400 Mesh sieve；

(4) isotactic polypropylene, polrvinyl chloride mixing are put in reactor, be subsequently adding the phthalic acid of total amount 3.5 times amount Dioctyl ester and remaining residual components, add, after stirring 60 minutes at 180 DEG C, the powder that step (3) obtains under nitrogen protective condition End, continues insulation and forms casting solution in 2 hours, by knifing machine, casting solution is made Flat Membrane, and controlling to scrape film temperature is 180 DEG C, Finally by Thermal inactive technology, immerse 25 DEG C of solidification water-baths through Flat Membrane and be separated, then extract through dehydrated alcohol, dry Polypropylene polrvinyl chloride composite micro porous film is obtained after Gan；

(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 pore type compound inslation binder strengthened that dispels the heat, it is characterised in that prepared system by the raw material of following weight portion Become: halloysite nanotubes 1.5-1.6, silane coupler kh5700.75-0.77, deionized water is appropriate, dehydrated alcohol is appropriate, ten Sodium dialkyl sulfate 1.2-1.4, alkylphenol polyoxyethylene 1.4-1.5, butyl acrylate 55-60, Isooctyl acrylate monomer 40- 43, isotactic polypropylene 40-44, polrvinyl chloride 53-55, dibenzylidene sorbitol 3-4, dioctyl phthalate be appropriate, nitrogen Change boron 6-7, chlorinated paraffin 2-3, chlorinated polypropylene 5-6, dibutyl tin laurate 1-1.2.

A kind of pore type compound inslation binder strengthened that dispels the heat, it is characterised in that by following tool Body step is made:

(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) chlorinated polyethylene is heated to melted stand-by, boron nitride is put in ball mill, add chlorinated paraffin, be heated to 60- 70 DEG C of ball millings mixed with melted chlorinated polypropylene after 30-40 minute, put into extruding pelletization in comminutor agent, were pulverized by granule, Cross 400 mesh sieves；

(4) isotactic polypropylene, polrvinyl chloride 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 powder arrived, continues insulation and forms casting solution in 2-3 hour, by knifing machine, casting solution is made Flat Membrane, control to scrape film temperature It is 180 DEG C, finally by Thermal inactive technology, immerses 25 DEG C of solidification water-baths through Flat Membrane and be separated, then through anhydrous second Alcohol 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 3-4 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. ?.