CN109251439A - A kind of preparation method of high-weatherability PVC buckle - Google Patents
A kind of preparation method of high-weatherability PVC buckle Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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Abstract
The invention discloses a kind of preparation methods of high-weatherability PVC buckle, are related to dalle technical field.The raw material of PVC buckle of the present invention includes: PVC5 type resin, calcium powder, calcium zinc stabilizer, stearic acid, PE wax, zinc borate, nano aluminium oxide, titanate coupling agent, modified montmorillonoid, modifying agent, wherein montmorillonite is modified with serine, modified montmorillonite is enabled to be obviously improved the weatherability of PVC buckle；Hydroxypropyl acrylate, maleic acid-acrylic acid copolymer can improve the hard crisp disadvantage of PVC buckle matter by the modifying agent that reaction generates, and improve its weatherability.
Description
Technical field:
The present invention relates to dalle technical fields, and in particular to a kind of preparation method of high-weatherability PVC buckle.
Background technique:
PVC is the white powder of amorphous structure, and the degree of branching is smaller, relative density 1.4 or so, glass transition temperature 77~90
DEG C, 170 DEG C or so start to decompose, and it is poor to the stability of light and heat, in 100 DEG C or more or through a long time exposure in sunshine, Jiu Huifen
It solves and generates hydrogen chloride, and further autocatalysis is decomposed, and causes to change colour, physical mechanical property also declines rapidly, is actually answering
Stabilizer be must be added in improve the stability to light and heat.
PVC board has many good characteristics, such as moisture-proof, mould proof, waterproof, wear-resisting etc., easy to aging using not allowing indoors
And deformation.PVC board can be made into PVC buckle and PVC wallboard, but the structural strength of PVC board and weather resistance be not significant, when by
When extraneous adverse circumstances such as cold and hot, burn into impact, PVC board itself is easy breakage, influences its service performance.
Summary of the invention:
Technical problem to be solved by the present invention lies in providing, a kind of self structure is stable, has to extraneous adverse circumstances relatively strong
The high-weatherability PVC buckle of repellence.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
A kind of preparation method of high-weatherability PVC buckle, comprising the following steps:
(1) the PVC buckle is made of following raw material: PVC5 type resin, calcium powder, calcium zinc stabilizer, stearic acid, PE wax,
Zinc borate, nano aluminium oxide, titanate coupling agent, modified montmorillonoid, modifying agent, mass ratio 100:200:5:1-6:1-2:
5-10:1-5:1-3:5-10:5-10；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, reinforcing fiber are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 500-800r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil enters the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine passes through the lower progress curing and drying of low-grade fever effect of the ultraviolet light and generation of mercury lamp in machine.
One area's temperature of double screw extruder is 70-100 DEG C, two area's temperature are 90-150 DEG C, three area's temperature are 130-
180 DEG C, screw speed 450-500r/min.
The solidification are as follows: mercury lamp is 9.5-10KW in summer curing, and mercury lamp is 345-350MM away from wallboard distance；Winter
Mercury lamp is 14.5-15KW in season curing, and mercury lamp is 390-400MM away from wallboard distance.
The modified montmorillonoid the preparation method comprises the following steps: montmorillonite is add to deionized water, 40 DEG C of stirring 10-20min,
Then the hydrochloric acid for being 5% with mass fraction, the pH for adjusting solution is 5-6, and serine is then added, is heated to reflux state, is protected
Temperature stirring 1-2h, adds tetraethyl titanate, continues return stirring 1-2h, filtering, and decontamination is washed with deionized water in filter cake, is sent into
In 100-110 DEG C of drying box, dry to constant weight to get modified montmorillonoid is arrived.
The montmorillonite, serine, tetraethyl titanate mass ratio be 10-15:20-25:1-5.
The modifying agent the preparation method comprises the following steps: by aqueous charcoal dispersion in deionized water, be heated to reflux state, heat preservation is stirred
10-20min is mixed, hydroxypropyl acrylate and metatitanic acid orthocarbonate is added, then maleic acid-propylene is added in return stirring 20-30min
Acid copolymer, return stirring 1-2h, is filtered while hot, and filter cake deionized water and dehydrated alcohol wash away impurity, is sent into 100-110 DEG C
It is dry to constant weight in drying box.
The aqueous charcoal, hydroxypropyl acrylate, metatitanic acid orthocarbonate, maleic acid-acrylic acid copolymer mass ratio be 10-
15:15-20:1-5:20-25.
The solid content of the maleic acid-acrylic acid copolymer is 55%-65%, molecular weight 1000-20000.
The crystal form of nano aluminium oxide is γ-Al2O3, partial size 20nm, even particle size distribution, purity is high, fabulous dispersion,
Specific surface area is high, can improve compactness, finish, cool-hot fatigue, the fracture toughness of PVC wallboard.
Reaction principle of the invention is as follows:
(1) montmorillonite is a kind of natural minerals of silicate, has very strong adsorption capacity and cation exchange capacity (CEC), quilt
Referred to as universal material.In acid condition, a proton in Serine molecule in carboxyl can be transferred in amino group, be formed
Ammonium ion, ammonium ion can cation exchange between montmorillonite layer, form the organo montmorillonite that organises of amino acid, then
Under the action of catalyst tetraethyl titanate, intermolecular esterification can occur for hydroxyl and carboxyl between Serine molecule, from
And modified montmorillonoid is made；
(2) aqueous charcoal is a kind of nano composite polymeric material, has active adsorptivity, easy sprayability and mobility, instead
Active height is answered, has good dispersibility to other materials, is commonly used for the air purifying preparation except formaldehyde.Acrylic acid hydroxypropyl in the application
Ester, maleic acid-acrylic acid copolymer generate modifying agent by esterification, polymerization reaction, wherein aqueous charcoal can adsorb synthesis
Modifying agent, the modified effect of reinforced modifier, while with the carrier function of aqueous charcoal, keep stock dispersion uniform, gives full play to each
The function and effect of component raw material.
The beneficial effects of the present invention are:
(1) present invention is modified processing to montmorillonite with Serine molecule, improves montmorillonite to organic and inorganic material
Compatibility, improve raw material between mixing efficiency；PVC buckle can be enhanced to soda acid, illumination, cold in modified montmorillonite simultaneously
The repellence of heat, self structure stabilization, good weatherability；
(2) hydroxypropyl acrylate, the modifying agent that maleic acid-acrylic acid copolymer is Material synthesis, can be obviously improved PVC
The addition of the disadvantage that resinite is hard and crisp, impact strength is low, the weatherability of Reinforced PVC resin, while modifying agent is so that PVC tree
Rouge has certain fungistatic effect；Aqueous charcoal acts in modifying agent, first is that the modified effect of modifying agent can be promoted, second is that right
The effect of raw material has good dispersion effect, can make each component raw material is not fully exerted；
(3) preparation method of the present invention is simple and environmentally-friendly, high production efficiency, is suitble to industrialized production.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modified montmorillonoid: 12g montmorillonite is add to deionized water, then 40 DEG C of stirring 10min use quality
The hydrochloric acid that score is 5%, the pH for adjusting solution is 5-6, and 24g serine is then added, is heated to reflux state, insulated and stirred
1h adds 2g tetraethyl titanate, continues return stirring 1h, filtering, and decontamination is washed with deionized water in filter cake, is sent into 100-110
In DEG C drying box, it is dry to constant weight to get arriving modified montmorillonoid.
The preparation of modifying agent: in deionized water by the aqueous charcoal dispersion of 12g, reflux state, insulated and stirred are heated to
10min, is added 15g hydroxypropyl acrylate and 2g metatitanic acid orthocarbonate, then 22g maleic acid-propylene is added in return stirring 20min
Acid copolymer, return stirring 2h, is filtered while hot, and filter cake deionized water and dehydrated alcohol wash away impurity, is sent into 100-110 DEG C of baking
It is dry to constant weight in dry case.
Embodiment 2
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modified montmorillonoid: 12g montmorillonite is add to deionized water, then 40 DEG C of stirring 10min use quality
The hydrochloric acid that score is 5%, the pH for adjusting solution is 5-6, and 24g serine is then added, is heated to reflux state, insulated and stirred
1h adds 2g tetraethyl titanate, continues return stirring 1h, filtering, and decontamination is washed with deionized water in filter cake, is sent into 100-110
In DEG C drying box, it is dry to constant weight to get arriving modified montmorillonoid.
The preparation of modifying agent: in deionized water by the aqueous charcoal dispersion of 12g, reflux state, insulated and stirred are heated to
10min, is added 15g hydroxypropyl acrylate and 2g metatitanic acid orthocarbonate, then 22g maleic acid-propylene is added in return stirring 20min
Acid copolymer, return stirring 2h, is filtered while hot, and filter cake deionized water and dehydrated alcohol wash away impurity, is sent into 100-110 DEG C of baking
It is dry to constant weight in dry case.
Reference examples 1
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modified montmorillonoid: 12g montmorillonite is add to deionized water, then 40 DEG C of stirring 10min use quality
The hydrochloric acid that score is 5%, the pH for adjusting solution is 5-6, and 24g serine is then added, is heated to reflux state, insulated and stirred
1h continues return stirring 1h, filtering, and decontamination is washed with deionized water in filter cake, is sent into 100-110 DEG C of drying box, dry to perseverance
It weighs to get modified montmorillonoid is arrived.
The preparation of modifying agent: in deionized water by the aqueous charcoal dispersion of 12g, reflux state, insulated and stirred are heated to
10min, is added 15g hydroxypropyl acrylate and 2g metatitanic acid orthocarbonate, then 22g maleic acid-propylene is added in return stirring 20min
Acid copolymer, return stirring 2h, is filtered while hot, and filter cake deionized water and dehydrated alcohol wash away impurity, is sent into 100-110 DEG C of baking
It is dry to constant weight in dry case.
Reference examples 2
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modifying agent: in deionized water by the aqueous charcoal dispersion of 12g, reflux state, insulated and stirred are heated to
10min, is added 15g hydroxypropyl acrylate and 2g metatitanic acid orthocarbonate, then 22g maleic acid-propylene is added in return stirring 20min
Acid copolymer, return stirring 2h, is filtered while hot, and filter cake deionized water and dehydrated alcohol wash away impurity, is sent into 100-110 DEG C of baking
It is dry to constant weight in dry case.
Reference examples 3
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modified montmorillonoid: 12g montmorillonite is add to deionized water, then 40 DEG C of stirring 10min use quality
The hydrochloric acid that score is 5%, the pH for adjusting solution is 5-6, and 24g serine is then added, is heated to reflux state, insulated and stirred
1h adds 2g tetraethyl titanate, continues return stirring 1h, filtering, and decontamination is washed with deionized water in filter cake, is sent into 100-110
In DEG C drying box, it is dry to constant weight to get arriving modified montmorillonoid.
The preparation of modifying agent: in deionized water by the aqueous charcoal dispersion of 12g, reflux state, insulated and stirred are heated to
10min, is added 15g hydroxypropyl acrylate and 2g metatitanic acid orthocarbonate, return stirring 20min, then return stirring 2h, while hot mistake
Filter, filter cake deionized water and dehydrated alcohol wash away impurity, are sent into 100-110 DEG C of drying box, dry to constant weight.
Reference examples 4
(1) the PVC buckle is made of following raw material: 100g PVC5 type resin, 200g calcium powder, 5g calcium zinc stabilizer, 4g
Stearic acid, 1.3gPE wax, 6g zinc borate, 4g nano aluminium oxide, 2g titanate coupling agent, 6g modified montmorillonoid, 8g modifying agent；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, glass fibre are mixed into grinding, then existed with stearic acid, PE wax
It is stirred under conditions of 800-000r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are mixed with powder in (2)
It is even, after double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized after preliminary sizing using stock mould, water cooling is determined
After type, traction is cut into semi-finished product PVC buckle；One area's temperature of double screw extruder is 80 DEG C, two area's temperature are 120 DEG C, 3rd area
Temperature is 150 DEG C, screw speed 450r/min；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil is sent into the levelling line that temperature is 40-50 DEG C, is delivered by levelling line
UV photo solidification machine carries out curing and drying by the ultraviolet light of mercury lamp in machine and the low-grade fever effect of generation.
Mercury lamp is 10KW in summer curing, and mercury lamp is 345MM away from wallboard distance；Mercury lamp is 15KW in winter curing,
Mercury lamp is 395M away from wallboard distance.
The preparation of modified montmorillonoid: 12g montmorillonite is add to deionized water, then 40 DEG C of stirring 10min use quality
The hydrochloric acid that score is 5%, the pH for adjusting solution is 5-6, and 24g serine is then added, is heated to reflux state, insulated and stirred
1h adds 2g tetraethyl titanate, continues return stirring 1h, filtering, and decontamination is washed with deionized water in filter cake, is sent into 100-110
In DEG C drying box, it is dry to constant weight to get arriving modified montmorillonoid.
Modifying agent: MBS anti-impact modifier.
Embodiment 3
Based on embodiment 1, the reference examples 1 of tetraethyl titanate, pair not being modified to montmorillonite are not added in setting
As usual 2, reference examples 3, the reference examples 4 using MBS anti-impact modifier for not adding maleic acid-acrylic acid copolymer.
Using embodiment 1-2, reference examples 1-4, PVC buckle is made, and PVC buckle is tested for the property, as a result such as table 1
It is shown.
The performance test of table 1PVC buckle
Atmospheric exposure test according to ASTMD2244-93 " color distinction of the color coordinate obtained for computing equipment measurement
Standard method of test " assesses encapsulating material row.Encapsulating material is placed in QUV ultraviolet light Ageing machine, it is ultraviolet using UVB
Light radiation, using Color Guide 45/0BYK Gardner unit measure it is every radiation 200 hours when each sample color characteristic (L*,
A* and b* parameter).The variation (Δ E) of color is calculated with ASTMD2244.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of preparation method of high-weatherability PVC buckle, which comprises the following steps:
(1) the PVC buckle is made of following raw material: PVC5 type resin, calcium powder, calcium zinc stabilizer, stearic acid, PE wax, boric acid
Zinc, nano aluminium oxide, titanate coupling agent, modified montmorillonoid, modifying agent, mass ratio 100:200:5:1-6:1-2:5-
10:1-5:1-3:5-10:5-10；
(2) above-mentioned calcium powder, calcium zinc stabilizer, silicon powder, reinforcing fiber are mixed into grinding, then with stearic acid, PE wax in 500-
It is stirred under conditions of 800r/min, obtains dispersion liquid, dispersion liquid drying crushes to obtain powder；
(3) above-mentioned PVC5 type resin, titanate coupling agent, modified montmorillonoid, modifying agent are uniformly mixed with powder in (2), are passed through
After double screw extruder squeezes out, mold extrusion is first passed through, is vacuumized using stock mould, after water cooling and shaping after preliminary sizing,
Traction is cut into semi-finished product PVC buckle；
(4) uv gloss oil is uniformly applied to this finished product PVC buckle surface by the polyammonium grease roller of rotation；
(5) the finished product PVC buckle for being coated with uv gloss oil enters the levelling line that temperature is 40-50 DEG C, delivers into UV light by levelling line
Curing passes through the lower progress curing and drying of low-grade fever effect of the ultraviolet light and generation of mercury lamp in machine.
2. the preparation method of high-weatherability PVC buckle according to claim 1, it is characterised in that: the twin-screw extrusion
One area's temperature of machine is 70-100 DEG C, two area's temperature are 90-150 DEG C, three area's temperature are 130-180 DEG C, screw speed 450-
500r/min。
3. the preparation method of high-weatherability PVC buckle according to claim 1, it is characterised in that: the solidification are as follows: summer
Mercury lamp is 9.5-10KW in season curing, and mercury lamp is 345-350MM away from wallboard distance；Mercury lamp is 14.5- in winter curing
15KW, mercury lamp are 390-400MM away from wallboard distance.
4. the preparation method of high-weatherability PVC buckle according to claim 1, it is characterised in that: the system of the modifying agent
Preparation Method are as follows: in deionized water by the dispersion of aqueous charcoal, be heated to reflux state, acrylic acid is added in insulated and stirred 10-20min
Then hydroxypropyl acrylate and metatitanic acid orthocarbonate, return stirring 20-30min are added maleic acid-acrylic acid copolymer, return stirring 1-2h,
It filters while hot, filter cake deionized water and dehydrated alcohol wash away impurity, are sent into 100-110 DEG C of drying box, drying to constant weight, i.e.,
It can.
5. the preparation method of high-weatherability PVC buckle according to claim 4, it is characterised in that: the aqueous charcoal, propylene
Sour hydroxypropyl acrylate, metatitanic acid orthocarbonate, maleic acid-acrylic acid copolymer mass ratio be 10-15:15-20:1-5:20-25.
6. the preparation method of high-weatherability PVC buckle according to claim 4, it is characterised in that: the maleic acid-propylene
The solid content of acid copolymer is 55%-65%, molecular weight 1000-20000.
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| CN115160673A (en) * | 2022-07-01 | 2022-10-11 | 山东元塑管业有限公司 | HDPE hexagonal corrugated pipe and production process thereof |
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