CN104497424A - Coloring masterbatch for PPR tube and preparation method of coloring masterbatch - Google Patents
Coloring masterbatch for PPR tube and preparation method of coloring masterbatch Download PDFInfo
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- CN104497424A CN104497424A CN201410733704.XA CN201410733704A CN104497424A CN 104497424 A CN104497424 A CN 104497424A CN 201410733704 A CN201410733704 A CN 201410733704A CN 104497424 A CN104497424 A CN 104497424A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K2201/003—Additives being defined by their diameter
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
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Abstract
The invention relates to a coloring masterbatch for a PPR tube. The masterbatch is prepared from the following raw materials in percentage by mass: 50-65 percent of rutile titanium dioxide, 28-40 percent of PPR resin, 3.9-9 percent of iron oxide red, 1.0-1.5 percent of titanium yellow, 0.1-0.5 percent of carbon black and 0.5-1.5 percent of polysiloxane, wherein the rutile titanium dioxide has an average grain size of 0.2-0.25 mu m and a refractive index of 2.7, has strong covering power and strong ultraviolet absorbability, and can be used for resisting temperature of 300 DEG C; and the carbon black is produced by a channel process and has an average grain size of 10-27nm. The invention further discloses a preparation method of the coloring masterbatch. The method comprises the steps of selecting raw materials, metering, mixing raw materials, cooling, granulating, packaging and the like. The coloring masterbatch has the advantages of high content of titanium dioxide, good dispersion, good light covering performance and discoloration prevention.
Description
Technical field
The present invention relates to a kind of color concentrate and preparation method thereof, particularly relate to a kind of PPR pipe color concentrate and preparation method thereof.
Background technology
PPR pipe is compared with the pipelines such as traditional cast iron pipe, galvanized steel pipe, cement pipe, there is advantages such as saving material, environmental protection, high-strength light, corrosion-resistant, inner wall smooth non-scaling, construction and maintenance is easy, long service life, be widely used in construction industry, municipal administration, industry and the agriculture fields such as building water supply and drainage, town and country plumbing, gas, electric power and cable jacket, industrial fluids conveying, agricultural irrigation.In recent years, along with construction industry, public works, hydro project, the continuing to increase of agricultural and the industry market demand such as industrial, Chinese PPR pipe industry presented high speed development situation.Within 2012, plastic conduit turnout is 1,100 ten thousand tons, and wherein PPR pipe accounts for about 10%, is 1,100,000 tons.China's plastic conduit is while output increases, and human consumer is also continuous in raising to the quality requirements of product environmental protection, health, the aspect such as durable.Following problem is mainly run into: it is improper that (1) producer is selected the colour batch of PPR pipe, and the shading rate of product does not reach requirement, can not stop growing of bacterium algae in PPR pipe extension process, and heavy metal severe overweight, the safe drinking water of serious harm people; Within 2002, PPR plastics tubing starts when running water pipe is made in Chinese family popularization, the a undocumented survey report display of Beijing Disease Prevention and Control Centre: the total plate count that family expenses PPR running water pipe flows out water quality is countless, and detect legionella pneumophilia 1 type, 5 types, startling more than quantity, exceed the galvanized pipe prohibitted the use.The result of laboratory test of relevant department to water quality is: nearly 28 kinds of bacteriums and 16 kinds of metallic elements, wherein the harmful heavy metal severe overweight such as cadmium, chromium, lead, mercury, does not meet GB/T17219 " safety evaluation of Drinking Water transmission & distribution wetting system and protective material " standard; (2) PPR pipe road inwall, especially joint unfairness, smooth, shelter evil people and countenance evil practices, cause above the average age for marriage bacterium carefully constantly to breed.Plumbing installations is inner to the internal dirt sampling in use for some time of PPR running water pipe, detected result is: a kind of yellow rust knurl, include bacillus, coccus, the microorganisms such as thin shape bacterium, a large amount of iron bacterias, Ai Xier intestinal bacteria, intestinal bacteria, perch bacterium, acinetobacter, Aeromonas, genus arthrobacter, bacillus etc. are 31 kinds and Pseudomonas putida Pseudomonas at least 14 kinds of biotypes nearly, what even find chlorine-resistant microorganism grows as straight chain Pseudomonas, crisp Bacillaceae, beautiful pipe spiral shell genus and Chlorella etc., heterotrophic bacterium in inside pipe wall dirt, intestinal bacteria, actinomyces and fungi concentration high.(3) easily there is slow seepage in PPR pipe, and then occur broken pipe.Due to producer figure low price, pigment is selected in masterbatch, to disperse bad color concentrate, in the course of processing, pigment still exists with macrobead, and cause pipeline being formed brilliant point, brilliant some place tubing is easily subject to the impact of stress concentration, thus cause seepage, even break; (4) PPR pipe is connected for thermo-welding with pipe fitting, and temperatures as high 300 DEG C during welding is easy to change during welding, there is aberration, makes human consumer there is doubt to product quality, affect the sale of PPR pipe with other positions of pipe fitting.
It is CN104059299A that State Intellectual Property Office discloses a publication number on September 24th, 2014, name is called the patent of invention of " a kind of PPR hot-water line color concentrate and preparation method thereof ", a kind of PPR hot-water line color concentrate of this disclosure of the invention, be made up of the starting material of following weight part: vector resin 40 ~ 60 parts, pigment 35 ~ 55 parts, dispersion agent 0.5 ~ 5 part, 0.1 ~ 3 part, oxidation inhibitor, antiseptic-germicide 0.1 ~ 3 part, described pigment is the mixture of white, black and yellow ultramarine, and its ratio is 5:2:1; Preparation process comprises batch mixing, extrudes, cooling, dry and granulation.This preferred pigment of invention institute is titanium dioxide, carbon black and permanent yellow, although the tinting strength of permanent yellow is strong, high temperature resistant bad, easily produces look and becomes, affect the normal color of tubing in the course of processing; In addition, the dispersion agent added in this invention is preferably Macrogol 200, poly(oxyethylene glycol) 400, under general condition, polyoxyethylene glycol is very stable, but it can be had an effect with the oxygen in air under 120 DEG C or higher temperature, thus cause it to lose the effect of dispersion, thus the color concentrate of this invention still can not solve existing issue as: opacifying property is bad, dispersiveness is bad, easy look becomes and internal surface is uneven and the technical problem of sheltering evil people and countenance evil practices.
Summary of the invention
The present invention is intended to solve in prior art, the technical problem that PPR pipe opacifying property is bad, bad, the easy look of dispersiveness becomes and internal surface is uneven and shelter evil people and countenance evil practices, proposes a kind of titanium dioxide content high, good dispersity, opacifying property is good, and the PPR pipe color concentrate that look becomes not easily occurs pigment used.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of PPR pipe color concentrate, is characterized in that: comprise following starting material by mass percentage: rutile titanium white powder 50 ~ 65%, PPR resin 28 ~ 40%, iron oxide red 3.9 ~ 9%, titan yellow 1.0 ~ 1.5%, carbon black 0.1 ~ 0.5%, organopolysiloxane 0.5 ~ 1.5%; Between the median size 0.2 ~ 0.25 μm of described rutile titanium white powder, specific refractory power is the rutile titanium white powder of 2.7, its strong covering power, and ultraviolet absorption ability is strong, can the temperature of resistance to 300 DEG C; Described carbon black is the median size that channel process is produced is 10 ~ 27nm, the colour carbon black produced by channel process.
Described PPR resin is preferably the PPR4220 of chemical plant, Yanshan Mountain production or the PPR-RP2400 of Korea S's production, and its advantage is melt temperature low (below 146 DEG C), and anti-isostatic pressing strength is high, and has good consistency with the PPR resin of pipe production.
The iron oxide red of preferred small organic molecule volatile quantity≤0.15% of described iron oxide red, titan yellow and carbon black, titan yellow and charcoal blacks.
The organopolysiloxane of preferred small molecules volatile quantity≤1.5% of described organopolysiloxane.
A preparation method for described PPR pipe color concentrate, comprises the following steps:
A. starting material are selected
1) titanium dioxide is selected: adopt particle diameter tester and refractometer to select between median size 0.2 ~ 0.25 μm, specific refractory power is the rutile titanium white powder of 2.7;
2) PPR resin is selected: adopt the PPR resin that GB/T617 melting range mensuration universal method selects melt temperature to be less than 146 DEG C;
3) selection of carbon black: adopt particle diameter tester median size to be the carbon black of 10 ~ 27nm;
The organopolysiloxane of the small molecules volatile quantity adopting following method choice to allow, iron oxide red, titan yellow and carbon black: on electronic balance, 1. weigh the drying basin being dried to constant weight, quality is m
0;
2. add in drying basin and take 3 ~ 5g determinand, weigh together with drying basin, write down quality m
1, the drying basin being loaded with determinand is placed in loft drier, at 100 ± 5 DEG C, carries out pre-treatment, get rid of moisture interference, process to constant weight, weigh and write down m
2;
3. again the drying basin being loaded with determinand is placed in baking oven, dries after 1 hour at 220 ± 5 DEG C, take out and weigh after being cooled to room temperature, writing down m
3.
According to formula: X=[(m
2-m
3)/(m
1-m
0)] * 100% to calculate;
B. metering, batch mixing
Each raw material is taken by formula, by first how each raw material drops in compounding jar by rear few order, batch mixing 10 ~ 20min under normal temperature;
C. extrude
Be transferred in forcing machine by fully mixed, melt extrude, each district temperature of forcing machine is set to: 90 ± 2 DEG C, 105 ± 2 DEG C, 110 ± 2 DEG C, 130 ± 2 DEG C, 138 ± 2 DEG C, 115 ± 2 DEG C, and die head temperature is 125 DEG C;
D. cooling, pelletizing
After being cooled by the strand of moving out from extruder die head, carry out granulation with tablets press, the even particle size after granulation, do not allow the company's grain more than 2,2 connect grain number≤0.2%;
E. pack
Paper plastic combined package bag is adopted to carry out packing, sealing.
In above-mentioned steps C, the screw speed of forcing machine is 250 ~ 300r/min, and motor speed is 20 ~ 30r/min.
Moisture content≤0.05% of described PPR pipe color concentrate.
Described PPR pipe color concentrate coefficient optimum proportion is in use 1.5 ~ 2.5%.
The color concentrate prepared by the present invention has following technical indicator:
1) temperature tolerance: keep 5min at 300 DEG C, aberration dE≤1.0, detect with standard compliant color difference meter;
2) transmittance≤0.2%, by GB/T 21300 " mensuration of plastic pipe and pipe fitting opaqueness measures ";
3) weathering resistance: oxidation induction period >=60min, detects by GB 17391 " polyvinyl piping materials and pipe fitting thermal stability test method ";
4) dispersed≤1 grade, detect by GB/T 18251 measuring method of pigment or carbon black dispersion " in polyolefin pipe, pipe fitting and the mixed ingredients ";
5) masterbatch moisture content≤0.05%, detects by QB 1648 " polyethylene color masterbatch ";
6) leaching ability of heavy metal increasing amount, meets " Drinking Water transmission & distribution wetting system Hygienic safety evaluation specification ";
7) safety and sanitation index: fluidizer, softening agent must not detect, detects by GB/T 21928 " in food plastic wrapping material phthalic ester ".
Beneficial effect of the present invention:
1. the present invention is bad in order to solve opacifying property in prior art, causes the problem of growing of bacterium algae, improves the content of titanium dioxide in formula, and high titanium dioxide content can cause titanium dioxide in the bad problem of the dispersion of goods.The present invention does wetting, dispersion agent by selecting organopolysiloxane, and compared with doing dispersion agent with the material such as the polyethylene wax adopted in prior art, organopolysiloxane has following characteristics: (1) whipability is low, and anti-bubble is strong, non-foaming in using; (2) excellent thermostability, decomposition temperature is greater than 300 DEG C, and under room temperature, middle low temperature, volatile quantity is minimum, such as: at 150 DEG C, the volatilization loss amount of 30 days is only 2%, oxidation test viscosity and acidity change minimum, the control that small organic molecule volatile quantity reaches fabulous can be kept; (3) in extent of alternating temperature, temperature raises and reduces little to viscosity B coefficent, good processing stability; (4) to pigment, there is dual-use function that is wetting and dispersion.Thus solve low small organic molecule volatile quantity, the high and problem of good dispersity of titanium dioxide content.
2. the present invention is by the selection to pigment, overcomes pigment colour in prior art and becomes the problem exceeded standard as drinking-water pipe heavy metal content using PPR pipe.The pigment that the present invention selects is iron oxide red, titan yellow and carbon black, its temperature tolerance all more than 1000 DEG C, therefore no matter in the course of processing or in welding process, all can not there is look to become, and the security of these three kinds of pigment is high, not containing heavy metal, be applicable to the painted of drinking-water pipe.
3, in the present invention by having carried out strict control to the pigment in starting material, organopolysiloxane small molecules thing, avoid producing " molten lip " phenomenon in tubulation process, " molten lip " phenomenon refers to the phenomenon occurring piling up small organic molecule at PPR pipe forcing machine die orifice.The accumulation of these small organic molecules can have a strong impact on the visual appearance of PPR pipe, causes pipeline, pipe fitting inner wall cut rough, affects that inner surface of pipeline is smooth, slickness, spot is caused to be piled up, pile up many, have a strong impact on the flowing of water in pipeline, pipe time serious, can be caused brokenly.
4, selected in the present invention carbon black median size is 10 ~ 27nm, with the colour carbon black that channel process is produced, its median size is minimum, because blackness is directly relevant to particle diameter, particle diameter is less, and the blackness of colour carbon black is higher, and its preventing ultraviolet effect is strong, thus improve the shading rate of PPR pipe, effectively can prevent mushroom, the growing of algae.
5, the PPR4200 of the present invention preferred Yanshan Mountain Chemical Manufacture or the PPR-RP2400 of Korea S is as vector resin, and this resin melt temperature is low, below 146 DEG C, anti-isostatic pressing strength is high, and have good consistency with the PPR resin of pipe production, and the anti-static pressure performance of PPR pipe can be improved, prevent brokenly pipe.
6, color concentrate moisture content of the present invention is low, can ensure the quality stability that later stage tubing, pipe fitting are processed, and can effectively avoid small bubbles to affect the problem of tubing, pipe fitting product strength.
7, the present invention adopts paper and plastics compound bag to pack, and effectively can avoid the moisture absorption problem in storage and transportation, thus when ensureing that downstream client uses, the moisture content of product is low, is easy to processing.
Embodiment
Embodiment 1
A kind of PPR pipe color concentrate, comprises the starting material of following weight: rutile titanium white powder 50kg, PPR resin 40 kg, iron oxide red 8 kg, titan yellow 1kg, carbon black 0.5 kg, organopolysiloxane 0.5kg; Wherein rutile titanium white powder selects median size to be 0.2 μm, and specific refractory power is the titanium dioxide of 2.7, its strong covering power, and ultraviolet absorption ability is strong, can the temperature of resistance to 300 DEG C; Selected carbon black is the colour carbon black that channel process is produced, and its median size is 10nm.
The equipment selecting rutile titanium white powder used is JL-1177 type laser particle distribution instrument and refractometer, selects satisfactory rutile titanium white powder.
The moisture content of the color concentrate made by the present embodiment is 0.04%.
Embodiment 2
A kind of PPR pipe color concentrate, comprises the starting material of following weight: rutile titanium white powder 65kg, PPR resin 38 kg, iron oxide red 3.9kg, titan yellow 1.5kg, carbon black 0.1 kg, organopolysiloxane 1.5 kg; Wherein rutile titanium white powder selects median size to be 0.25 μm, and specific refractory power is the titanium dioxide of 2.7, its strong covering power, and ultraviolet absorption ability is strong, can the temperature of resistance to 300 DEG C; Selected carbon black is the colour carbon black that channel process is produced, and its median size is 27nm.
The equipment selecting rutile titanium white powder used is JL-1177 type laser particle distribution instrument and refractometer, selects satisfactory rutile titanium white powder.
In the present embodiment, PPR resin is the PPR4220 that chemical plant, the Yanshan Mountain produces, and melt temperature is low, and below 146 DEG C, anti-isostatic pressing strength is high, and has good consistency with the PPR resin of pipe production; Carbon black is the colour carbon black produced by channel process, the colour carbon black that channel process is produced, its median size is minimum, because blackness is directly relevant to particle diameter, particle diameter is less, and the blackness of colour carbon black is higher, and its preventing ultraviolet effect is strong, thus improve the shading rate of PPR pipe, effectively can prevent mushroom, the growing of algae.
In the present embodiment, the small molecules thing volatile quantity of iron oxide red, titan yellow and carbon black is respectively 0.03%, 0.04%, 0.09%, and the small molecules volatile quantity of organopolysiloxane is 0.08%.
The detection method of the small molecules thing volatile quantity of above-mentioned iron oxide red, titan yellow, carbon black and organopolysiloxane is as follows:
1. on electronic balance, weigh the drying basin being dried to constant weight, quality is m
0;
2. add in drying basin and take 3 ~ 5g determinand, weigh together with drying basin, write down quality m
1, the drying basin being loaded with determinand is placed in loft drier, at 100 ± 5 DEG C, dries 1h carry out pre-treatment, get rid of moisture interference, process to constant weight, weigh and write down m
2;
3. again the drying basin being loaded with determinand is placed in baking oven, dries after 1 hour at 220 ± 5 DEG C, take out and weigh after being cooled to room temperature, writing down m
3.
According to formula: X=[(m
2-m
3)/(m
1-m
0)] * 100% to calculate.
The moisture content of the color concentrate made by the present embodiment is 0.03%.
Embodiment 3
A kind of PPR pipe color concentrate, comprises the starting material of following weight: rutile titanium white powder 55kg, PPR resin 33 kg, iron oxide red 9kg, titan yellow 1.2kg, carbon black 0.8 kg, organopolysiloxane 1kg; Wherein rutile titanium white powder selects median size to be 0.22 μm, and specific refractory power is the titanium dioxide of 2.7, its strong covering power, and ultraviolet absorption ability is strong, can the temperature of resistance to 300 DEG C; Selected carbon black is the colour carbon black that channel process is produced, and its median size is 20nm.
The equipment selecting rutile titanium white powder used is JL-1177 type laser particle distribution instrument and refractometer, selects satisfactory rutile titanium white powder.
In the present embodiment, PPR resin is the PPR4220 that chemical plant, the Yanshan Mountain produces.
In the present embodiment, the small molecules thing volatile quantity of iron oxide red, titan yellow and carbon black is respectively 0.02%, 0.06%, 0.08%, and the small molecules volatile quantity of organopolysiloxane is 0.07%; Wherein, the detection method of the small molecules thing volatile quantity of iron oxide red, titan yellow, carbon black and organopolysiloxane is with embodiment 2.
The preparation method of the present embodiment color concentrate comprises the following steps:
Comprise the following steps:
A. starting material are selected
1) titanium dioxide is selected: adopt JL-1177 type particle diameter tester and refractometer to select between median size 0.22 μm, specific refractory power is the rutile titanium white powder of 2.7;
2) PPR resin is selected: adopt GB/T 617 melting range to measure universal method and select satisfactory PPR resin;
3) selection of carbon black: adopt JL-1177 type particle diameter tester median size to be the carbon black of 20nm;
4) select small molecules thing volatile quantity to be respectively 0.02%, 0.06%, the iron oxide red of 0.08%, titan yellow and carbon black small molecules volatile quantity are the organopolysiloxane of 0.07%;
B. metering, batch mixing
Take each raw material by formula, in compounding jar, add rutile titanium white powder, PPR resin, iron oxide red, organopolysiloxane, titan yellow, carbon black successively, batch mixing 10min under normal temperature;
C. extrude
Be transferred in forcing machine by fully mixed, melt extrude, each district temperature of forcing machine is set to: 90 ± 2 DEG C, 105 ± 2 DEG C, 110 ± 2 DEG C, 130 ± 2 DEG C, 138 ± 2 DEG C, 115 ± 2 DEG C, and die head temperature is 125 DEG C;
D. cooling, pelletizing
After being cooled by the strand of moving out from extruder die head, carry out granulation with tablets press, the even particle size after granulation, do not allow the company's grain more than 2,2 connect grain number≤0.2%;
E. pack
Adopt paper plastic combined package bag to pack, every bag of 25 ± 0.1kg, seals.
In above-mentioned steps C, the screw speed of forcing machine is 300r/min, and motor speed is 30r/min.
The moisture content of the color concentrate made by the present embodiment is 0.03%; The masterbatch coefficient optimum proportion of the present embodiment is 1.5%.
Embodiment 4
A kind of PPR pipe color concentrate, comprise following weight starting material: rutile titanium white powder 60kg, PPR resin 31kg, iron oxide red 6.5kg, titan yellow 1.5kg, carbon black 0.2kg, organopolysiloxane 0.8kg; Wherein rutile titanium white powder selects median size to be 0.24 μm, and specific refractory power is the titanium dioxide of 2.7, its strong covering power, and ultraviolet absorption ability is strong, can the temperature of resistance to 300 DEG C; Selected carbon black is the colour carbon black that channel process is produced, and its median size is 25nm.
The equipment selecting rutile titanium white powder used is JL-1177 type laser particle distribution instrument and refractometer, selects satisfactory rutile titanium white powder.
In the present embodiment, PPR resin is the PPR-RP2400 that Korea S produces; The small molecules thing volatile quantity of iron oxide red, titan yellow and carbon black is respectively 0.04%, 0.035%, 0.11%, and the small molecules volatile quantity of organopolysiloxane is 0.06%; Wherein, the detection method of the small molecules thing volatile quantity of iron oxide red, titan yellow, carbon black and organopolysiloxane is with embodiment 2.
A. starting material are selected
1) titanium dioxide is selected: adopt particle diameter tester and refractometer to select between median size 0.22 μm, specific refractory power is the rutile titanium white powder of 2.7;
2) PPR resin is selected: adopt GB/T617 melting range to measure universal method and select satisfactory PPR resin;
3) selection of carbon black: adopt particle diameter tester median size to be the carbon black of 25nm;
4) select small molecules thing volatile quantity to be respectively 0.04%, 0.035%, the iron oxide red of 0.11%, titan yellow and carbon black small molecules volatile quantity are the organopolysiloxane of 0.06%;
B. metering, batch mixing
Take each raw material by formula, in compounding jar, add rutile titanium white powder, PPR resin, iron oxide red, organopolysiloxane, titan yellow, carbon black successively, batch mixing 20min under normal temperature;
C. extrude
Be transferred in forcing machine by fully mixed, melt extrude, each district temperature of forcing machine is set to: 90 ± 2 DEG C, 105 ± 2 DEG C, 110 ± 2 DEG C, 130 ± 2 DEG C, 138 ± 2 DEG C, 115 ± 2 DEG C, and die head temperature is 125 DEG C;
D. cooling, pelletizing
After being cooled by the strand of moving out from extruder die head, carry out granulation with tablets press, the even particle size after granulation, do not allow the company's grain more than 2,2 connect grain number≤0.2%;
E. pack
Adopt paper plastic combined package bag to pack, every bag of 25 ± 0.1kg, seals.
In above-mentioned steps C, the screw speed of forcing machine is 250r/min, and motor speed is 20r/min.
The moisture content of the color concentrate made by the present embodiment is 0.01%, and coefficient optimum proportion is 2%.
The index synopsis of embodiment 1 ~ embodiment 4 and convention water hose color concentrate is as table 1:
Table 1:
In prior art, the formula of convention water hose color concentrate is as table 2:
Table 2:
As can be seen from Table 1, the temperature tolerance of colour batch of the present invention is far away higher than convention water hose color concentrate, and in the course of processing and the thermal welding process in later stage, the present invention has good temperature tolerance, thus ensure that intensity and the aesthetic property of water pipe; The transmittance of colour batch of the present invention is low, can stop most light, thus avoids and be exposed in outdoor water pipe, growing of algae; The good weatherability of colour batch of the present invention, long service life, and meet completely " Drinking Water transmission & distribution wetting system Hygienic safety evaluation specification ", and without softening agent and fluidizer, as drinking-water pipe, safer.
Claims (8)
1. a PPR pipe color concentrate, is characterized in that: comprise following starting material by mass percentage: rutile titanium white powder 50 ~ 65%, PPR resin 28 ~ 40%, iron oxide red 3.9 ~ 9%, titan yellow 1.0 ~ 1.5%, carbon black 0.1 ~ 0.5%, organopolysiloxane 0.5 ~ 1.5%; Between the median size 0.2 ~ 0.25 μm of described rutile titanium white powder, specific refractory power is the rutile titanium white powder of 2.7; Described carbon black be with channel process produce median size be the colour carbon black of 10 ~ 27nm.
2. PPR pipe color concentrate as claimed in claim 1, is characterized in that: described PPR resin is the one in the PPR4220 of chemical plant, Yanshan Mountain production or the PPR-RP2400 of Korea S's production.
3. PPR pipe color concentrate as claimed in claim 1 or 2, is characterized in that: small organic molecule volatile quantity≤0.15% of described iron oxide red, titan yellow and carbon black.
4. PPR pipe color concentrate as claimed in claim 1, is characterized in that: small organic molecule volatile quantity≤1.5% of described organopolysiloxane.
5. prepare a method for the PPR pipe color concentrate as described in claim 1,2 or 4, it is characterized in that: comprise the following steps:
A. starting material are selected
Titanium dioxide is selected: adopt particle diameter tester and refractometer to select median size to be 0.2 ~ 0.25 μm, specific refractory power is the rutile titanium white powder of 2.7;
PPR resin is selected: adopt GB/T617 melting range to measure universal method and select the PPR resin of melt temperature below 146 DEG C;
The selection of carbon black: adopt particle diameter tester median size to be the carbon black of 10 ~ 27nm;
The organopolysiloxane of the small organic molecule volatile quantity adopting following method choice to allow, iron oxide red, titan yellow and carbon black: on electronic balance, 1. weigh the drying basin being dried to constant weight, quality is m
0;
2. take 3 ~ 5g determinand and add drying basin, weigh together with drying basin, write down quality m
1, the drying basin being loaded with determinand is placed in loft drier, pre-treatment at 100 ± 5 DEG C, gets rid of moisture interference, process to constant weight, weigh and write down m
2;
3. again the drying basin being loaded with determinand is placed in baking oven, dries after 1 hour at 220 ± 5 DEG C, take out and weigh after being cooled to room temperature, writing down m
3;
According to formula: X=[(m
2-m
3)/(m
1-m
0)] * 100% to calculate;
B. metering, batch mixing
Each raw material is taken by formula, by first how each raw material drops in compounding jar by rear few order, batch mixing 10 ~ 20min under normal temperature;
C. extrude
Be transferred in forcing machine by fully mixed, melt extrude, each district temperature of forcing machine is set to: 90 ± 2 DEG C, 105 ± 2 DEG C, 110 ± 2 DEG C, 130 ± 2 DEG C, 138 ± 2 DEG C, 115 ± 2 DEG C, and die head temperature is 125 DEG C;
D. cooling, pelletizing
After being cooled by the strand of moving out from extruder die head, carry out granulation with tablets press, the even particle size after granulation, do not allow the company's grain more than 2,2 connect grain number≤0.2%;
E. pack
Paper plastic combined package bag is adopted to carry out packing, sealing.
6. prepare the method for PPR pipe color concentrate as claimed in claim 6, it is characterized in that: in step C, the screw speed of described forcing machine is 250 ~ 300r/min, and motor speed is 20 ~ 30r/min.
7. PPR pipe color concentrate as claimed in claim 1, is characterized in that: described PPR pipe color concentrate adding proportion is in use 1.5 ~ 2.5%.
8. PPR pipe color concentrate as claimed in claim 1, is characterized in that: described PPR pipe color concentrate has following technical indicator:
(1) temperature tolerance: keep 5min at 300 DEG C, aberration dE≤1.0;
(2) transmittance≤0.2%;
(3) weathering resistance: oxidation induction period >=60min;
(4) dispersiveness≤1 grade;
(5) masterbatch moisture content≤0.05%;
(6) leaching ability of heavy metal increasing amount, meets " Drinking Water transmission & distribution wetting system Hygienic safety evaluation specification ";
(7) safety and sanitation index: fluidizer, softening agent must not detect.
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|---|---|---|---|
| CN201410733704.XA CN104497424A (en) | 2014-12-05 | 2014-12-05 | Coloring masterbatch for PPR tube and preparation method of coloring masterbatch |
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|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960107A (en) * | 2015-07-06 | 2015-10-07 | 蓝星（成都）新材料有限公司 | Preparation method for polypropylene coloring masterbatches |
| CN105001585A (en) * | 2015-07-06 | 2015-10-28 | 蓝星（成都）新材料有限公司 | High temperature resistant colouring masterbatch and preparation method thereof |
| CN105153548A (en) * | 2015-07-06 | 2015-12-16 | 蓝星（成都）新材料有限公司 | High temperature resistant color masterbatch and preparation method thereof |
| CN106751931A (en) * | 2016-12-16 | 2017-05-31 | 佛山市顺德区宝斯特颜料有限公司 | A kind of tertiary colour cake and preparation method thereof |
| CN113321870A (en) * | 2021-06-15 | 2021-08-31 | 广东联塑科技实业有限公司 | Green color master batch for PPR pipe fittings and preparation method and application thereof |
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| CN104059299A (en) * | 2014-06-11 | 2014-09-24 | 蓝星（成都）新材料有限公司 | Coloring master batch for RRP (polypropylene random) hot-water pipes and preparation method thereof |
| JP2014210828A (en) * | 2013-04-17 | 2014-11-13 | 大日精化工業株式会社 | Master batch for coloring resin and colored resin molded product |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014210828A (en) * | 2013-04-17 | 2014-11-13 | 大日精化工業株式会社 | Master batch for coloring resin and colored resin molded product |
| CN104059299A (en) * | 2014-06-11 | 2014-09-24 | 蓝星（成都）新材料有限公司 | Coloring master batch for RRP (polypropylene random) hot-water pipes and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960107A (en) * | 2015-07-06 | 2015-10-07 | 蓝星（成都）新材料有限公司 | Preparation method for polypropylene coloring masterbatches |
| CN105001585A (en) * | 2015-07-06 | 2015-10-28 | 蓝星（成都）新材料有限公司 | High temperature resistant colouring masterbatch and preparation method thereof |
| CN105153548A (en) * | 2015-07-06 | 2015-12-16 | 蓝星（成都）新材料有限公司 | High temperature resistant color masterbatch and preparation method thereof |
| CN106751931A (en) * | 2016-12-16 | 2017-05-31 | 佛山市顺德区宝斯特颜料有限公司 | A kind of tertiary colour cake and preparation method thereof |
| CN106751931B (en) * | 2016-12-16 | 2017-12-01 | 佛山市顺德区宝斯特颜料有限公司 | A kind of tertiary colour cake and preparation method thereof |
| CN113321870A (en) * | 2021-06-15 | 2021-08-31 | 广东联塑科技实业有限公司 | Green color master batch for PPR pipe fittings and preparation method and application thereof |
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