CN109553906A - A kind of preparation method of regenerative engineering plastics - Google Patents
A kind of preparation method of regenerative engineering plastics Download PDFInfo
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- CN109553906A CN109553906A CN201811481765.6A CN201811481765A CN109553906A CN 109553906 A CN109553906 A CN 109553906A CN 201811481765 A CN201811481765 A CN 201811481765A CN 109553906 A CN109553906 A CN 109553906A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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Abstract
The invention discloses a kind of preparation methods of regenerative engineering plastics, using the plastic reclaimed fiber of recycling engineering, acrylic resin and chopped glass fiber, enhancing composite resin material is made as major ingredient, have the rigidity and intensity of traditional glass-fibre reinforced resin composite material, preferable toughness and resistance against compression energy are obtained again, and are reduced costs；The anti-aging materials such as fire proofings and wollastonite raphioid fiber such as graphene, titanium dioxide, halloysite nanotubes in modified aging-resistant flame-proof system, form compound synergistic effect, one kind is made with modified recycling engineering plastic blend melting to be dispersed in inside engineering plastics in the form of microfibril, forms the high ageing-resistant fire-retardant regenerated engineering of intensity；It is used by the collaboration of selected weather resisting agent and release agent, enhances the weather resistance of engineering plastics；The invention avoids resource waste and pollutions, and preparation process is simple, high production efficiency, the higher final products obtained therefrom excellent in mechanical performance of product quality, and low toxic and environment-friendly.
Description
Technical field
The present invention relates to engineering plastics technical field more particularly to a kind of preparation methods of regenerative engineering plastics.
Background technique
Engineering plastics have excellent comprehensive performance, and rigidity is big, and creep is small, high mechanical strength, heat-resist, electrical insulating property
It is good, it can be used for a long time in harsher chemistry, physical environment, alternative metal is used as structural timber.
Engineering plastics are " white caused by increasing severely plastic refuse while meeting people's life and social development
Society and environmental problem caused by color pollution " are also got worse, and " white pollution " of useless engineering plastics initiation starts to allow people's head
Bitterly, the Undec engineering plastics of without putrefaction can not be recycled effectively.The sharp increase of engineering plastics waste and thus caused society and ring
Border problem is put in face of people, is put in the place of whole world people life existence.
Regenerated engineering is the effective way for solving the pollution of engineering plastics bring, but regenerated engineering plastics exist
The disadvantages of intensity is low, immalleable, glossiness is low, thermo-oxidative stability is poor, further, since on the macromolecular chain of regenerated engineering
There is tertiary carbon atom, during storage, processing and routine use, can be heated, light and degradation with aging easily occur the effects of oxygen,
Weatherability is very poor, seriously affects the service life of product, so that the range and field that recycle to it have certain restriction effect.Even if
It is that current more advanced its impurity degree of sorting is above 5%, the presence of impurity influences to recycle compatibility when plastics, can drop
The mechanical property of low recycled plastic.
Fiberglass reinforced acrylic resin is the composite organic-inorganic material of a quasi-tradition.It is via acrylic resin and
Weather resisting agent is made after combination process and heat cure, and with light weight, specific strength is high, electrical insulating property is good, corrosion-resistant, heat resistance
The features such as excellent, is widely used to science and techniques of defence, space flight and aviation, shipbuilding, chemical industry, building, communications and transportation and intelligence electricity
The fields such as automation.Although glass has played outstanding reinforcing effect in acrylic resin, since glass itself belongs to
The extremely strong material of rigidity, shock resistance and the toughness that often will cause acrylic resin are insufficient, also will cause its compressive strength
Loss, particularly with the more contour structures the part with complicated structure of stress concentration point, this defect is especially prominent, to limit this
The application of class material.
Summary of the invention
The present invention provides a kind of preparation methods of regenerative engineering plastics, solve the above-mentioned of existing regenerated engineering
Deficiency, plastics mechanical property made from the regenerative engineering plastics that the present invention obtains is good, has excellent weather resistance.
In order to solve the above technical problems, the present invention provides a kind of preparation method of regenerative engineering plastics, including it is as follows
Step:
(1) the plastic reclaimed fiber of recycling engineering is prepared
Waste and old engineering plastics raw material is subjected to break process；It is washed using detergent, subsequent clear water rinsing；Using
Electric magnetic iron remover handle except iron；Then the plastic reclaimed fiber of recycling engineering is prepared in melt spinning；
The plastic reclaimed fiber of recycling engineering includes one of following components or a variety of: polypropylene (PP), high density
Polyethylene (HDPE), polyethylene terephthalate (PET), polyvinyl formal (PVA), polyimides, polyamide
(PA)；
(2) preparation enhancing composite resin material
Using the plastic reclaimed fiber of above-mentioned recycling engineering, acrylic resin and chopped glass fiber, enhancing compound resin material is made
Material, it is spare；
(3) according to following parts by weight ingredient:
Composite resin material 70-80 parts of enhancing
Modified 5-7 parts of aging-resistant flame-proof system
3-5 parts of weather resisting agent
1-3 parts of toughener
1-1.5 parts of release agent
0.5-1.5 parts of lubricant；
Kaolin, halloysite nanotubes, graphene, titanium dioxide are wherein included at least in the modified aging-resistant flame-proof system
With wollastonite raphioid fiber；
(4) ingredient is added in batch mixer, batch mixer mixes 10-20min with the speed of 500-700r/min；It is double
Screw Extrusion is kneaded plasticizing, homogenizing, the technological parameter of double screw extruder are as follows: screw slenderness ratio 40: 1, double screw extruder
One 195-205 DEG C of area's temperature, two 210-220 DEG C of area's temperature, three 230-235 DEG C of area's temperature, four area's temperature to nine area temperature 235-
245 DEG C, 235-245 DEG C of head temperature；
Plastic strip after extrusion is carried out cooling and shaping by water-cooling groove by water cooling bracing；
Air-cooled drying, the plastic strip after water cooling pass through air cooling equipment, will adhere to the drying of the moisture on plastic strip；
Pelletizing is drawn, granular by being cut into the plastic strip feeding blank after drying, the revolving speed of pelleter is 600-800r/
Min obtains regenerative engineering plastics.
Preferably, in the step (2), specifically comprise the following steps:
Recycled plastic regenerated fiber is sheared to the chopped strand of 2-5mm, then it is ground using star-like ball mill
50-80min is ground, however the fiber after grinding is subjected to cleaning 3-5 times with clear water, and is 12 hours dry in 80 DEG C of baking oven；
By above-mentioned ground, cleaning and it is dry after chopped regenerated fiber be added to according to the ratio be preheated to 60-75 DEG C third
In olefin(e) acid resin, after mechanical stirring, it is cooled to room temperature；Then 20- is stirred for by curing agent and curing accelerator is added again
30min obtains homogeneous suspended nitride；
Above-mentioned epoxy suspended nitride is combined with chopped glass fiber by preset proportion, and after heat cure, is obtained
Enhance composite resin material.
Preferably, in the enhancing composite resin material, the percent mass proportioning of each component is as follows: recycled plastic regeneration
Fiber 45-55%, chopped glass fiber 10-15%, curing agent 2-4%, curing accelerator 0.5-1.5%, surplus are acrylic resin.
Preferably, the curing agent is aliphatic, aromatic polyvalent amine or acid anhydride type curing agent, the curing accelerator
For 2-ethyl-4-methylimidazole, 2- ethyl imidazol(e), 2- phenylimidazole or 2 isopropyl imidazole.
Preferably, the modified aging-resistant flame-proof system is prepared by the following method:
1-3 parts of nano kaolines are taken by mass fraction, the potassium bicarbonate aqueous solution that 2-4 parts of mass fractions are 25-35%,
1.2-1.5 parts of characterization parameter diameters are 50-100nm, the halloysite nanotubes that length is 5-10 μm, 1.5-1.8 parts of graphenes,
0.5-0.8 parts of titanium dioxides, 0.5-0.7 parts of lauryl amine polyoxyethylene ether, the wollastonite that 1-1.2 parts of draw ratios are 10-13:1 are needle-shaped
Fiber is uniformly mixed, stirs in 170-190 DEG C of superheated steam reaction kettle, and decatize reacts 35-50min, true at 450-480 DEG C
Then empty microwave radiation 3-5h is dipped in the sulfamic acid solution vacuum moisture absorption that 90-110 parts of mass fractions are 35% and handles, inhales saturating
After be heated to 75-85 DEG C of ultrasonic wave dispersion 1-2.5h, be stirred for dispersion 3-5h, take suspended matter；
By mass fraction by 3-5 part suspended matter microwave plasma etching processing 25-30min of above-mentioned acquisition, with 50-80 parts
The deionized water of the potassium tripolyphosphate dispersion liquid of 3-5% containing mass fraction ultrasonication 15-30min at 65-75 DEG C, takes upper layer
Suspended matter is filtered through 100-150 mesh, distilled water washes clean, vacuum drying, obtains modified aging-resistant flame-proof system.
Preferably, the weather resisting agent includes light stabilizer and ultraviolet absorbing agent, the light stabilizer and ultraviolet radiation absorption
The mass ratio of agent is 1:(1-3).
Preferably, the ultraviolet absorbing agent is UVP-327 or ASK-215, and the light stabilizer is carbon black.
Preferably, the lubricant uses polyethylene glycol, and the plasticizer is selected from diethyl phthalate, adipic acid two
One or more of pungent rouge, sebacic acid dibutyl ester.
Preferably, the release agent is compounded by Hinered phenols release agent and phosphorous acid esters release agent, quality proportioning
For 1:1.
Preferably, the toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer.
One or more technical solution provided by the invention, has at least the following technical effects or advantages: (1) using recycling
Engineering plastics regenerated fiber, acrylic resin and chopped glass fiber are made enhancing composite resin material as major ingredient, that is, have biography
The rigidity and intensity of system glass-fibre reinforced resin composite material, and preferable toughness and resistance against compression energy are obtained, and reduce
Cost；(2) fire proofings such as graphene, titanium dioxide, halloysite nanotubes and wollastonite are needle-shaped in modified aging-resistant flame-proof system
The anti-aging materials such as fiber form compound synergistic effect, and one kind is made with micro- fibril with modified recycling engineering plastic blend melting
Dimension form is dispersed in inside engineering plastics, forms the high ageing-resistant fire-retardant regenerated engineering of intensity；(3) weather-proof by what is selected
Agent and the collaboration of release agent use, and enhance the weather resistance of engineering plastics；(4) resource waste and pollution is avoided, work is prepared
Skill is simple, high production efficiency, the higher final products obtained therefrom excellent in mechanical performance of product quality, and low toxic and environment-friendly.
Specific embodiment
Embodiment one
Waste and old engineering plastics raw material is subjected to break process；It is washed using detergent, subsequent clear water rinsing；Using
Electric magnetic iron remover handle except iron；Then the plastic reclaimed fiber of recycling engineering is prepared in melt spinning；The recycling engineering
Plastic reclaimed fiber includes polypropylene (PP), high density polyethylene (HDPE) (HDPE), polyamide (PA).
Recycled plastic regenerated fiber is sheared to the chopped strand of 2-5mm, then it is ground using star-like ball mill
50min is ground, however the fiber after grinding is subjected to cleaning 3 times with clear water, and is 12 hours dry in 80 DEG C of baking oven；It will be above-mentioned
Chopped regenerated fiber after ground, cleaning and drying is added to according to the ratio in the acrylic resin for being preheated to 60 DEG C, through machinery
After stirring, it is cooled to room temperature；Then it is stirred for 20min by curing agent and curing accelerator is added again, obtains homogeneous hang
Laitance material；Above-mentioned epoxy suspended nitride is combined with chopped glass fiber by preset proportion, and after heat cure, is increased
Strong composite resin material.In the enhancing composite resin material, the percent mass proportioning of each component is as follows: recycled plastic regeneration
Fiber 45%, chopped glass fiber 10%, curing agent 2%, curing accelerator 0.5%, surplus are acrylic resin.The curing agent is
Aliphatic firming agent, the curing accelerator are 2-ethyl-4-methylimidazole.
According to following parts by weight ingredient:
80 parts of composite resin material of enhancing
Modified 5 parts of aging-resistant flame-proof system
3 parts of weather resisting agent
1 part of toughener
1 part of release agent
0.5 part of lubricant；
Kaolin, halloysite nanotubes, graphene, titanium dioxide are wherein included at least in the modified aging-resistant flame-proof system
With wollastonite raphioid fiber.The modified aging-resistant flame-proof system is prepared by the following method:
1 part of nano kaoline, the potassium bicarbonate aqueous solution that 2 parts of mass fractions are 25%, 1.2 parts of characterizations are taken by mass fraction
The halloysite nanotubes that parameter diameter is 50-100nm, length is 5-10 μm, 1.5 parts of graphenes, 0.5 part of titanium dioxide, 0.5 part month
Osmanthus amine polyoxyethylene ether, the wollastonite raphioid fiber that 1 part of draw ratio is 10:1 are uniformly mixed, in 170 DEG C of superheated steam reaction kettles
Interior stirring, decatize react 35min, radiate 3h in 450 DEG C of vacuum microwaves, are then dipped in the amino sulphur that 90 parts of mass fractions are 35%
Acid solution vacuum moisture absorption processing is heated to 75 DEG C of ultrasonic wave dispersion 1h, is stirred for dispersion 3h, takes suspended matter after inhaling thoroughly；By quality
Number is by 3 parts of suspended matter microwave plasma etching processing 25min of above-mentioned acquisition, with 50 parts of 3% tripolyphosphates containing mass fraction
The deionized water of potassium dispersion liquid ultrasonication 15min at 65-75 DEG C, takes upper layer suspended matter to filter through 100 mesh, distillation washing
Clean, vacuum drying is washed, modified aging-resistant flame-proof system is obtained.
The weather resisting agent includes light stabilizer and ultraviolet absorbing agent, the quality of the light stabilizer and ultraviolet absorbing agent
Than for 1:1.The ultraviolet absorbing agent is UVP-327, and the light stabilizer is carbon black.The lubricant uses polyethylene glycol,
The plasticizer is diethyl phthalate.The release agent is compounded by Hinered phenols release agent and phosphorous acid esters release agent
It forms, quality proportioning 1:1.The toughener is ethylene-methyl acrylate-glyceryl methacrylate ternary polymerization
Object.
The ingredient is added in batch mixer, batch mixer mixes 10min with the speed of 500r/min；Twin-screw extrusion is mixed
Refining plasticizing, homogenizing, the technological parameter of double screw extruder are as follows: screw slenderness ratio 40: 1, one area's temperature 195 of double screw extruder
DEG C, two 210 DEG C of area's temperature, three 230 DEG C of area's temperature, four area's temperature to 235 DEG C of nine area's temperature, 235 DEG C of head temperature.
Plastic strip after extrusion is carried out cooling and shaping by water-cooling groove by water cooling bracing；Air-cooled drying, the plastics after water cooling
Item passes through air cooling equipment, will adhere to the moisture on plastic strip and dries up；Pelletizing is drawn, the plastic strip after drying is sent into blank and is cut
It granulates, the revolving speed of pelleter is 600r/min, obtains regenerative engineering plastics.
Embodiment two
Waste and old engineering plastics raw material is subjected to break process；It is washed using detergent, subsequent clear water rinsing；Using
Electric magnetic iron remover handle except iron；Then the plastic reclaimed fiber of recycling engineering is prepared in melt spinning；The recycling engineering
Plastic reclaimed fiber includes high density polyethylene (HDPE) (HDPE), polyethylene terephthalate (PET), polyvinyl formal
(PVA)。
Recycled plastic regenerated fiber is sheared to the chopped strand of 2-5mm, then it is ground using star-like ball mill
60min is ground, however the fiber after grinding is subjected to cleaning 4 times with clear water, and is 12 hours dry in 80 DEG C of baking oven；It will be above-mentioned
Chopped regenerated fiber after ground, cleaning and drying is added to according to the ratio in the acrylic resin for being preheated to 67 DEG C, through machinery
After stirring, it is cooled to room temperature；Then it is stirred for 25min by curing agent and curing accelerator is added again, obtains homogeneous hang
Laitance material；Above-mentioned epoxy suspended nitride is combined with chopped glass fiber by preset proportion, and after heat cure, is increased
Strong composite resin material.In the enhancing composite resin material, the percent mass proportioning of each component is as follows: recycled plastic regeneration
Fiber 48%, chopped glass fiber 13%, curing agent 3%, curing accelerator 1%, surplus are acrylic resin.The curing agent is virtue
The fragrant polynary amine curing agent of race, the curing accelerator are 2- ethyl imidazol(e).
According to following parts by weight ingredient:
70 parts of composite resin material of enhancing
Modified 6 parts of aging-resistant flame-proof system
4 parts of weather resisting agent
2 parts of toughener
1.2 parts of release agent
1 part of lubricant；
Kaolin, halloysite nanotubes, graphene, titanium dioxide are wherein included at least in the modified aging-resistant flame-proof system
With wollastonite raphioid fiber.The modified aging-resistant flame-proof system is prepared by the following method:
2 parts of nano kaolines, the potassium bicarbonate aqueous solution that 3 parts of mass fractions are 30%, 1.3 parts of characterizations are taken by mass fraction
The halloysite nanotubes that parameter diameter is 50-100nm, length is 5-10 μm, 1.6 parts of graphenes, 0.7 part of titanium dioxide, 0.6 part month
Osmanthus amine polyoxyethylene ether, the wollastonite raphioid fiber that 1.1 parts of draw ratios are 12:1 are uniformly mixed, and are reacted in 180 DEG C of superheated steams
Stirring in kettle, decatize react 40min, radiate 4h in 460 DEG C of vacuum microwaves, are then dipped in the amino that 98 parts of mass fractions are 35%
Sulfonic acid solutions vacuum moisture absorption processing is heated to 78 DEG C of ultrasonic wave dispersion 2h, is stirred for dispersion 4h, takes suspended matter after inhaling thoroughly；By matter
Number is measured by 4 parts of suspended matter microwave plasma etching processing 27min of above-mentioned acquisition, with 60 parts of 4% trimerization phosphorus containing mass fraction
The deionized water of sour potassium dispersion liquid ultrasonication 18min at 70 DEG C, takes upper layer suspended matter to filter through 120 mesh, distillation washing
Clean, vacuum drying is washed, modified aging-resistant flame-proof system is obtained.
The weather resisting agent includes light stabilizer and ultraviolet absorbing agent, the quality of the light stabilizer and ultraviolet absorbing agent
Than for 1:2.The ultraviolet absorbing agent is UVP-327, and the light stabilizer is carbon black.The lubricant uses polyethylene glycol,
The plasticizer is adipic acid dibutyl ester.The release agent by Hinered phenols release agent and phosphorous acid esters release agent compounding and
At quality proportioning 1:1.The toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer.
The ingredient is added in batch mixer, batch mixer mixes 15min with the speed of 600r/min；Twin-screw extrusion is mixed
Refining plasticizing, homogenizing, the technological parameter of double screw extruder are as follows: screw slenderness ratio 40: 1, one area's temperature 200 of double screw extruder
DEG C, two 215 DEG C of area's temperature, three 235 DEG C of area's temperature, four area's temperature to 240 DEG C of nine area's temperature, 240 DEG C of head temperature.
Plastic strip after extrusion is carried out cooling and shaping by water-cooling groove by water cooling bracing；Air-cooled drying, the plastics after water cooling
Item passes through air cooling equipment, will adhere to the moisture on plastic strip and dries up；Pelletizing is drawn, the plastic strip after drying is sent into blank and is cut
It granulates, the revolving speed of pelleter is 700r/min, obtains regenerative engineering plastics.
Embodiment three
Waste and old engineering plastics raw material is subjected to break process；It is washed using detergent, subsequent clear water rinsing；Using
Electric magnetic iron remover handle except iron；Then the plastic reclaimed fiber of recycling engineering is prepared in melt spinning；The recycling engineering
Plastic reclaimed fiber includes polyvinyl formal (PVA), polyimides, polyamide (PA).
Recycled plastic regenerated fiber is sheared to the chopped strand of 2-5mm, then it is ground using star-like ball mill
80min is ground, however the fiber after grinding is subjected to cleaning 5 times with clear water, and is 12 hours dry in 80 DEG C of baking oven；It will be above-mentioned
Chopped regenerated fiber after ground, cleaning and drying is added to according to the ratio in the acrylic resin for being preheated to 75 DEG C, through machinery
After stirring, it is cooled to room temperature；Then it is stirred for 30min by curing agent and curing accelerator is added again, obtains homogeneous hang
Laitance material；Above-mentioned epoxy suspended nitride is combined with chopped glass fiber by preset proportion, and after heat cure, is increased
Strong composite resin material.In the enhancing composite resin material, the percent mass proportioning of each component is as follows: recycled plastic regeneration
Fiber 55%, chopped glass fiber 15%, curing agent 4%, curing accelerator 1.5%, surplus are acrylic resin.The curing agent is
Acid anhydride type curing agent, the curing accelerator are 2 isopropyl imidazole.
According to following parts by weight ingredient:
76 parts of composite resin material of enhancing
Modified 7 parts of aging-resistant flame-proof system
5 parts of weather resisting agent
3 parts of toughener
1.5 parts of release agent
1.5 parts of lubricant；
Kaolin, halloysite nanotubes, graphene, titanium dioxide are wherein included at least in the modified aging-resistant flame-proof system
With wollastonite raphioid fiber.The modified aging-resistant flame-proof system is prepared by the following method:
3 parts of nano kaolines, the potassium bicarbonate aqueous solution that 4 parts of mass fractions are 35%, 1.5 parts of characterizations are taken by mass fraction
The halloysite nanotubes that parameter diameter is 50-100nm, length is 5-10 μm, 1.8 parts of graphenes, 0.8 part of titanium dioxide, 0.7 part month
Osmanthus amine polyoxyethylene ether, the wollastonite raphioid fiber that 1.2 parts of draw ratios are 13:1 are uniformly mixed, and are reacted in 190 DEG C of superheated steams
Stirring in kettle, decatize react 50min, radiate 5h in 480 DEG C of vacuum microwaves, are then dipped in the ammonia that 110 parts of mass fractions are 35%
Base sulfonic acid solutions vacuum moisture absorption processing is heated to 85 DEG C of ultrasonic wave dispersion 2.5h, is stirred for dispersion 5h, takes suspended matter after inhaling thoroughly；
By mass fraction by 5 parts of suspended matter microwave plasma etching processing 30min of above-mentioned acquisition, contain mass fraction 5% with 50-80 parts
The deionized water of potassium tripolyphosphate dispersion liquid ultrasonication 30min at 75 DEG C, takes upper layer suspended matter to filter through 150 mesh, steams
Distilled water washes clean, vacuum drying obtain modified aging-resistant flame-proof system.
The weather resisting agent includes light stabilizer and ultraviolet absorbing agent, the quality of the light stabilizer and ultraviolet absorbing agent
Than for 1:3.The ultraviolet absorbing agent is ASK-215, and the light stabilizer is carbon black.The lubricant uses polyethylene glycol,
The plasticizer is sebacic acid dibutyl ester.The release agent by Hinered phenols release agent and phosphorous acid esters release agent compounding and
At quality proportioning 1:1.The toughener is ethylene-methyl acrylate-glyceryl methacrylate terpolymer.
The ingredient is added in batch mixer, batch mixer mixes 20min with the speed of 700r/min；Twin-screw extrusion is mixed
Refining plasticizing, homogenizing, the technological parameter of double screw extruder are as follows: screw slenderness ratio 40: 1, one area's temperature 205 of double screw extruder
DEG C, two 220 DEG C of area's temperature, three 235 DEG C of area's temperature, four area's temperature to 245 DEG C of nine area's temperature, 245 DEG C of head temperature.
Plastic strip after extrusion is carried out cooling and shaping by water-cooling groove by water cooling bracing；Air-cooled drying, the plastics after water cooling
Item passes through air cooling equipment, will adhere to the moisture on plastic strip and dries up；Pelletizing is drawn, the plastic strip after drying is sent into blank and is cut
It granulates, the revolving speed of pelleter is 800r/min, obtains regenerative engineering plastics.
The specific embodiment of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application protection scope therefore cannot be interpreted as.It should be pointed out that the present invention is not limited to embodiment here,
Those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in this hairs
In bright protection scope.
Claims (8)
1. a kind of preparation method of regenerative engineering plastics, includes the following steps:
(1) the plastic reclaimed fiber of recycling engineering is prepared
Waste and old engineering plastics raw material is subjected to break process；It is washed using detergent, subsequent clear water rinsing；Using electromagnetism
Iron remover handle except iron；Then the plastic reclaimed fiber of recycling engineering is prepared in melt spinning；
The plastic reclaimed fiber of recycling engineering includes one of following components or a variety of: polypropylene (PP), high-density polyethylene
Alkene (HDPE), polyethylene terephthalate (PET), polyvinyl formal (PVA), polyimides, polyamide (PA)；
(2) preparation enhancing composite resin material
Using the plastic reclaimed fiber of above-mentioned recycling engineering, acrylic resin and chopped glass fiber, enhancing composite resin material is made, it is standby
With；
(3) according to following parts by weight ingredient:
Composite resin material 70-80 parts of enhancing
Modified 5-7 parts of aging-resistant flame-proof system
3-5 parts of weather resisting agent
1-3 parts of toughener
1-1.5 parts of release agent
0.5-1.5 parts of lubricant；
Kaolin, halloysite nanotubes, graphene, titanium dioxide and silicon are wherein included at least in the modified aging-resistant flame-proof system
Lime stone raphioid fiber；
(4) ingredient is added in batch mixer, batch mixer mixes 10-20min with the speed of 500-700r/min；Twin-screw
It squeezes out and is kneaded plasticizing, homogenizing, the technological parameter of double screw extruder are as follows: screw slenderness ratio 40: 1, one area of double screw extruder
195-205 DEG C of temperature, two 210-220 DEG C of area's temperature, three 230-235 DEG C of area's temperature, four area's temperature to nine area temperature 235-245
DEG C, 235-245 DEG C of head temperature；
Plastic strip after extrusion is carried out cooling and shaping by water-cooling groove by water cooling bracing；
Air-cooled drying, the plastic strip after water cooling pass through air cooling equipment, will adhere to the drying of the moisture on plastic strip；
Pelletizing is drawn, granular by being cut into the plastic strip feeding blank after drying, the revolving speed of pelleter is 600-800r/min, is obtained
To regenerative engineering plastics.
2. the method as described in claim 1, which is characterized in that in the step (2), specifically comprise the following steps:
Recycled plastic regenerated fiber is sheared to the chopped strand of 2-5mm, then it is ground using star-like ball mill
50-80min, however the fiber after grinding is subjected to cleaning 3-5 times with clear water, and 12 hours dry in 80 DEG C of baking oven；
By above-mentioned ground, cleaning and it is dry after chopped regenerated fiber be added to be preheated to 60-75 DEG C of acrylic acid according to the ratio
In resin, after mechanical stirring, it is cooled to room temperature；Then it is stirred for 20-30min by curing agent and curing accelerator is added again,
Obtain homogeneous suspended nitride；
Above-mentioned epoxy suspended nitride is combined with chopped glass fiber by preset proportion, and after heat cure, is enhanced
Composite resin material.
3. method according to claim 2, which is characterized in that in the enhancing composite resin material, the quality of each component
Per distribution ratio is as follows: recycled plastic regenerated fiber 45-55%, chopped glass fiber 10-15%, curing agent 2-4%, curing accelerator
0.5-1.5%, surplus are acrylic resin.
4. method as claimed in claim 3, which is characterized in that the curing agent is aliphatic, aromatic polyvalent amine or acid
Anhydride curing agent, the curing accelerator are 2-ethyl-4-methylimidazole, 2- ethyl imidazol(e), 2- phenylimidazole or 2- isopropyl
Imidazoles.
5. the method as described in claim 1-4 is any, which is characterized in that the modified aging-resistant flame-proof system is by the following method
It is prepared:
1-3 parts of nano kaolines, the potassium bicarbonate aqueous solution that 2-4 parts of mass fractions are 25-35%, 1.2- are taken by mass fraction
1.5 parts of characterization parameter diameters are 50-100nm, the halloysite nanotubes that length is 5-10 μm, 1.5-1.8 parts of graphenes, 0.5-
0.8 part of titanium dioxide, 0.5-0.7 parts of lauryl amine polyoxyethylene ether, the wollastonite raphioid fiber that 1-1.2 parts of draw ratios are 10-13:1,
It is uniformly mixed, is stirred in 170-190 DEG C of superheated steam reaction kettle, decatize reacts 35-50min, in 450-480 DEG C of vacuum microwave
3-5h is radiated, the sulfamic acid solution vacuum moisture absorption that 90-110 parts of mass fractions are 35% is then dipped in and handles, heating after inhaling thoroughly
Disperse 1-2.5h to 75-85 DEG C of ultrasonic wave, is stirred for dispersion 3-5h, takes suspended matter；
By mass fraction by 3-5 part suspended matter microwave plasma etching processing 25-30min of above-mentioned acquisition, contain matter with 50-80 parts
The deionized water of amount score 3-5% potassium tripolyphosphate dispersion liquid ultrasonication 15-30min at 65-75 DEG C, takes upper layer to suspend
Object is filtered through 100-150 mesh, distilled water washes clean, vacuum drying, obtains modified aging-resistant flame-proof system.
6. method as claimed in claim 5, which is characterized in that the weather resisting agent includes light stabilizer and ultraviolet absorbing agent,
The mass ratio of the light stabilizer and ultraviolet absorbing agent is 1:(1-3).
7. method as claimed in claim 6, which is characterized in that the ultraviolet absorbing agent is UVP-327 or ASK-215, institute
Stating light stabilizer is carbon black.
8. the method for claim 7, which is characterized in that the toughener is ethylene-methyl acrylate-methacrylic acid
Ethylene oxidic ester terpolymer.
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| CN112724689A (en) * | 2021-01-05 | 2021-04-30 | 浙江多力塑胶有限公司 | PVB (polyvinyl butyral) membrane with good weather resistance and preparation method thereof |
| CN112724689B (en) * | 2021-01-05 | 2021-09-21 | 浙江多力塑胶有限公司 | PVB (polyvinyl butyral) membrane with good weather resistance and preparation method thereof |
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