CN109294117A - A kind of plum tube and its production technology - Google Patents
A kind of plum tube and its production technology Download PDFInfo
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- CN109294117A CN109294117A CN201811142636.4A CN201811142636A CN109294117A CN 109294117 A CN109294117 A CN 109294117A CN 201811142636 A CN201811142636 A CN 201811142636A CN 109294117 A CN109294117 A CN 109294117A
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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
- 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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- 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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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- 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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of plum tube and its production technologies, it is related to polymeric material field, more particularly to, the shock resistance of plum tube in the prior art is solved the problems, such as with regard to poor, plum tube includes following component: 40~60wt% of polyvinyl chloride resin, 6~18wt% of anti-impact modifier, 2~6wt% of 1~7wt% of compound stabilizer, 25~35wt% of compounded mix and auxiliary agent；Anti-impact modifier include in ACR, MBS, CPE, ABS and EVA it is any two or more；Compound stabilizer includes one of calcium stearate, zinc stearate and epoxidized soybean oil or a variety of；Compounded mix includes any two kinds in calcium carbonate, titanium dioxide, diatomite and powdered rice hulls；Auxiliary agent includes lubricant, plasticiser, toughener and paraffin.Plum tube of the invention has impact, certain tensile strength, tensile strength, stability, and has good appearance and the transparency.
Description
Technical field
The present invention relates to polymeric material field more particularly to a kind of plum tube and its production technologies.
Background technique
Plum tube is a kind of plum blossom formed plus other formulas by unique mold using PVC particle as main material
The communication tubing of shape, also known as honeycomb duct have five holes, seven apertures in the human head and nine hole three types, and such pipe material inner wall is smooth, can directly wear light
Cable can save working hour, structurally reasonable, and use value is high, and the service life is long, it is mainly used for communication cable protecting pipe.
Pvc pipe good physical properties have good corrosion resistance, chemical stability and flame resistance etc., and cheap.
But PVC intermolecular force is very strong, and by material deformation after low-temperature impact power, molecular structure is more easily damaged, causes
Pvc pipe impact resistance is poor, and especially low temperature impact properties are particularly poor.The disadvantage of the shock resistance difference of PVC material is one
Determine to define in degree polyvinyl chloride resin in terms of application.In order to improve the shock resistance of polyvinyl chloride resin,
Conventional method is that toughener is added into PVC matrix, and toughener can reduce the intermolecular active force of PVC, therefore it is multiple to improve PVC
The impact strength of condensation material.
To solve the above problems, application No. is the Chinese patents of CN201610598731.X to disclose a kind of high impact-resistant
Pvc pipe is comprised the following components in parts by weight and is made: 100 parts of polyvinyl chloride resin, 5~10 parts of titanium dioxide, 0.1~0.3 part of CPE,
ACM0.1~0.3 part.But the raising of the shock resistance of CPE product is limited；High impact resistant ACR and ACM can keep product certain
Rigidity, improve the shock resistance of product, it is still, simple to add that CPE or ACM is still unable to satisfy PVC pipe and pipe fitting is high-strength
The requirement of degree, high-impact.
Summary of the invention
The purpose of the present invention one is to provide a kind of plum tube, the plum tube have impact resilience, tensile strength, stretch it is strong
Performances such as degree, stability, heat resistance and appearance is good, will not damage the advantage of the original transparency of PVC.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of plum tube, including following component: 40~60wt% of polyvinyl chloride resin, 6~18wt% of anti-impact modifier, stable composition
2~6wt% of 1~7wt% of agent, 25~35wt% of compounded mix and auxiliary agent；
The anti-impact modifier include in ACR, MBS, CPE, ABS and EVA it is any two or more；
The compound stabilizer includes one of calcium stearate, zinc stearate and epoxidized soybean oil or a variety of；
The compounded mix includes any two kinds in calcium carbonate, titanium dioxide, diatomite and powdered rice hulls；
The auxiliary agent includes lubricant, plasticiser, toughener and paraffin.
PVC (polyvinyl chloride) resin is a polarity amorphism high polymer, density: 1.380kg/cm3, Glass Transition temperature
Degree: it is 87 DEG C, therefore thermal stability is poor, not easy to be processed, cannot directly use, it is necessary to by modified mixture, addition related auxiliaries and
Filler just can be used.Anti-impact modifier is a kind of low temperature brittleness for improving high molecular material, assigns its higher toughness
Chemicals.There are many shock proof modifying agent of PVC, mainly have: CPE resin, CPVC resin, ABS resin, MBS resin, EVA tree
Rouge, NBR resin, ACR resin etc..In the present invention, the anti-impact modifier includes appointing in ACR, MBS, CPE, ABS and EVA
Anticipate two or more；It is preferred that the anti-impact modifier includes ACR, MBS and CPE, described ACR, MBS and CPE account for plum blossom respectively
1~5wt%, 2~6wt% and the 3~7wt% of pipe total weight；Further preferably, the ACR of 2~4wt%, 3~5wt%
The CPE of MBS and 4~6wt%.
ACR resin is to be exclusively used in the modified resin of PVC, is using methyl methacrylate as main monomer and a small amount of propylene
Acid esters (butyl acrylate, ethyl acrylate) and styrene are through binary made from emulsion polymerization or suspension polymerisation or multi-component copolymer
Object；ACR resin have excellent weatherability, high impact modified effect and good processing fluidity, colour stability and
Heat resistance is also very prominent, suitable for making PVC modifier.MBS resin both can keep PVC's while toughening to greatest extent
The transparency, while compared with other anti-impact modifiers, in same additional amount, it can also more greatly promote product
Toughness.CPE, haloflex is as high density polyethylene (HDPE) through high molecular material made from chlorination substitution reaction, nontoxic nothing
Taste, have excellent weatherability, resistance to ozone, chemical-resistant resistance and ageing-resistant performance, have good oil resistivity, anti-flammability and
Color performance has good compatibility with other high molecular materials, and decomposition temperature is higher.ABS be styrene (40%~50%),
Butadiene (25% -30%), acrylonitrile (25%~30%) terpolymer, are mainly used as engineering plastics, are also used as PVC punching
Clicking to change property, it is also fine to low-temperature impact modified effect.EVA is the copolymer of ethylene and vinyl acetate acid, and vinylacetate draws
Enter to change the crystallinity of polyethylene, and EVA is different from PVC index of refraction, therefore, often simultaneously by EVA and other impact resins
For improving the shock resistance of PVC.
In the present invention, the anti-impact modifier of ACR, MBS and CPE as PVC is selected, ABS and the efficient of MBS this kind resist
Impact modifying agent has synergistic effect to the improvement of PVC impact resistance.Therefore, a small amount of modifying agent is added in PVC to be obtained
To high impact resistance, and increase the flexibility of PVC, and insignificantly changes the mechanical performance of mixture.ACR is best PVC
Weatherability anti-impact modifier, PVC/ACR can keep long-term high impact, appearance and good heat resistance, tensile strength
And the performances such as drug-resistant, but the original transparency of PVC can be damaged, and molding product is blended in PVC/MBS, truly has higher resistance to
Impact, the outstanding transparency and appearance, for the shortcomings that both overcoming, the advantages of both performance, two kinds of modifying agent, which are combined, to be made
With learning from other's strong points to offset one's weaknesses, the transparency, the good PVC product of weatherability can be made.CPE has good with other high molecular materials
Compatibility improves the compatibility of ACR, MBS, CPE and PVC, so that the more efficient impact resistance to PVC is modified.With
ACR, MBS and CPE are modified PVC, can be while improving PVC shock resistance, so that PVC plum tube has centainly
The performances such as high impact, appearance, good heat resistance, tensile strength, drug-resistant, and it is original transparent to damage PVC
Property.
PVC compound stabilizer is using scientific " MOLECULE DESIGN " principle, advanced process for treating surface, special compound
Technique and the collection heat stabilizer of stringent Quality Monitoring Control System development and production, antioxidant, coupling agent, divide inside and outside lubricant agent
High efficiency that powder etc. is integrated, multi-functional new high-tech product.Compound stabilizer includes calcium stearate, tristearin in the present invention
One of sour zinc and epoxidized soybean oil are a variety of；It is preferred that compound stabilizer includes calcium stearate and zinc stearate, the tristearin
Sour calcium and zinc stearate account for the 0.5~4wt% and 0.5~3wt% of plum tube total weight respectively；Further preferably, 1.5~
The calcium stearate of 3wt% and the zinc stearate of 1~2.5wt%.
The compound stabilizer of calcium stearate and zinc stearate mixing, has good lubricity and preferable light, thermostabilization
Effect, helps to prevent " coking " in process.Calcium stearate and zinc stearate are sufficiently mixed, the easy supply of auxiliary material
And reserve improves working condition, is conducive to protect a possibility that being conducive to production, quality management, provide dustless production product
Retaining ring border；Calcium stearate and zinc stearate are sufficiently mixed, interaction, can be improved other each components and be mixed the equal of dispersion with resin
Even property；Calcium stearate, which has, inhales sour effect, will deviate from HCl when caning absorb the HCl and CPE heated that PVC thermal decomposition generates, and prevent
The catalytic degradation of HCl, so that PVC stability can be improved.
In the present invention, compounded mix includes any two kinds in calcium carbonate, titanium dioxide, diatomite and powdered rice hulls；It is preferred that institute
Stating compounded mix includes calcium carbonate and titanium dioxide, and the calcium carbonate and titanium dioxide account for 23~30wt% of plum tube total weight respectively
With 2~5wt%；Further preferably, the titanium dioxide is the titanium dioxide of rutile-type；Much further preferably from 25~28wt%
Calcium carbonate and 3~4wt% rutile-type titanium dioxide.
Compounded mix can make that rubber color light is gorgeous, elongation is big, tensile strength is high, wear-resisting property is good.Calcium carbonate, titanium white
Powder, diatomite and powdered rice hulls materials are easy, and renewable, itself is nontoxic, will not cause damages to environment and people, belong to green material
Material meets Green Development requirement.Calcium carbonate is commonly called as: lime stone, lime stone, mountain flour, marble etc., in the present invention, the carbonic acid that uses
Calcium be gel calcium carbonate (activated Calcium carbonate), activity it is bigger than ordinary calcium carbonate, have it is reinforcing, easily decompose among sizing material,
Filler material as PVC, can make that PVC color light is gorgeous, elongation is big, tensile strength is high, wear-resisting property is good.CPE can also make
For modified fillers therefor, there is certain fillibility, use activated Calcium carbonate that the impact resilience of PVC can be improved as the filling system of CPE
And stability.Titanium dioxide (titanium dioxide), chemical property are stablized, and especially rutile type titanium white is important white pigment,
There are superior whiteness, tinting strength, tinting power, covering power, weatherability, heat resistance and chemical stability compared with other white pigments, in PVC
Rutile type titanium white is added as compounded mix, low-consuming, nontoxicity can play a protective role to the stability of medium,
And the mechanical strength of energy Reinforced PVC, crackle is prevented, prevents ultraviolet light and moisture through plum tube, can extend to a certain extent
The service life of plum tube.
Diatomite and powdered rice hulls play the role of physical crosslinking point in compounded mix, and ACR can not only improve PVC's
Shock resistance, and processing aid can be played the role of, ACR can reduce the fusion time of PVC, may make in compounded mix
Diatomite and powdered rice hulls are sufficiently merged with polyvinyl chloride resin, and PVC molecule segment can be assisted to enter in the duct of diatomite, and anchor
On diatomaceous earth particle surface, make the effective space net structure of the formation such as diatomite, polyvinyl chloride resin, powdered rice hulls, makees in tensile stress
Under, diatomite increases stress concentration, can effectively improve the yield strength of basic polyvinyl chloride resin, reduces plastic deformation, thus can
Improve tensile strength.
Heretofore described auxiliary agent includes lubricant, plasticiser, toughener and paraffin.It is preferred that the plasticiser is synthesis
Vegetable esters；The auxiliary agent includes 0.5~1wt% of lubricant, synthesis 0.5~3wt% of vegetable esters, 0.5~1wt% of toughener and stone
0.5~1wt% of wax；Further preferably are as follows: 0.6~0.9wt% of lubricant, synthesis 1.5~2wt% of vegetable esters, toughener 0.6~
0.6~0.9wt% of 0.9wt% and paraffin.
When being modified to PVC, filler or other additives can have an impact to the mobility of the processing of PVC, certain journey
So that the processing fluidity of PVC declines on degree, and the addition of a certain amount of lubricant, the index of melt flows can be enhanced.
Paraffin has the advantages that latent heat of phase change is big as a kind of latent heat storage material, and the variation of solid-liquid phase-change process volume is small,
Thermal stability is good, no surfusion, and paraffin also have many advantages, such as it is nontoxic, it is environmentally friendly, cheap.It is preferably poly- in the present invention
Ethylene waxes, polyethylene wax refer to that molecular weight is the poly- second of low molecular weight of 1500~25000 low molecular weight polyethylene or partial oxidation
Alkene has excellent cold resistance, heat resistance, chemical resistance, wearability and mobility.When large power assembly works in plum tube
The a large amount of heat generated can only be when dissipation be fallen in limited heat dissipation area and very short time, and the phase-change material of low melting point is opposite
High-melting-point phase-change material can be rapidly achieved fusing point, and polyethylene wax is added in PVC, and latent heat can be made full use of to realize temperature control, so that
Thermal response time is relatively short；Gelation degree can be enhanced, improve the toughness and surface flatness of the plum tube of PVC, and with it is other
Exterior lubricant compare, polyethylene wax may make PVC plum tube have stronger internal lubrication effect.
Plasticiser, generally also referred to as plasticizer, are the high molecular material auxiliary agents being industrially widely used, in plastic processing
This substance is added, its flexibility can be made to enhance, be easily worked, in the present invention, selects synthesis vegetable esters as plasticiser, closes
There is very excellent intermiscibility at vegetable esters and PVC resin powder, can inhibit precipitation bleed, low temperature resistance is excellent, winter energy
Normal use.It cooperates with other components, the plastic products produced mechanical performance with higher, excellent gelling energy
Power, good resistance to saponifiability and good resistive performance, and have significant stability when low temperature.And synthesis vegetable esters one kind is novel
Environment-friendly plasticizer, environmental protection and public nuisance free, product price is cheap, has certain economic benefit and social benefit.
Toughener refers to and can increase the flexible substance of adhesive film layer.In the present invention, endurable active toughener or non-may be selected
Endurable active toughener, endurable active toughener refer to that it can form net containing the active group that can be reacted with matrix resin on its strand
Network structure increases a part of flexible chain, to improve the shock resistance of composite material；Nonactive toughener is then a kind of and base
Body resin mixes very well but is not involved in the toughener of chemical reaction.
The purpose of the present invention two is to provide a kind of production technology of plum tube, which has step simple, easily
In implement the advantages of.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of production technology of plum tube, the production technology include the following steps:
Step 1: polyvinyl chloride resin, anti-impact modifier, compound stabilizer, compounded mix and auxiliary agent are weighed by setting ratio；
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；By weighed carbonic acid
The titanium dioxide of calcium and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: polyvinyl chloride resin, ACR, MBS, CPE, compound stabilizer, compounded mix, lubricant, synthesis vegetable esters, toughener and
Paraffin is uniformly mixed, and obtains mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, the particle plastifying fusion made, in mold
Interior extrusion molding, cooling sizing, traction, coiling, obtain plum tube.
It is preferred that melting temperature is 150~190 DEG C when the made particle plastifying fusion.
Each component is weighed according to setting ratio, is then uniformly mixed each component, is granulated, then by particle plastifying fusion, is squeezed
Out, sizing is cooled and shaped, and traction is coiled, and obtains plum tube, the obtained plum tube by way of being first granulated in extrusion molding, and one
Determine the uniformity that mixing is improved in degree, so that obtained plum tube performance is more excellent, and the step of production technology is simple,
It is easy to operate, it is easy to implement.
In conclusion the present invention in contrast to the prior art have the beneficial effect that plum tube have impact resilience, tensile strength,
Performances such as tensile strength, stability, heat resistance and appearance is good, will not damage the advantage of the original transparency of PVC.And plum
The step of production technology of floral tube, is simple, easy to operate, easy to implement.
Specific embodiment
Invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of production technology of plum tube includes the following steps:
Step 1: weigh 40kgPVC resin, 2kgACR, 5kgMBS, 7kgCPE, 4kg calcium stearate, 2.5kg zinc stearate,
30kg calcium carbonate, the titanium dioxide of 5kg rutile-type, 1kg lubricant, 2kg synthesis vegetable esters, 1kg toughener and 0.5kg paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 150 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 2
A kind of production technology of plum tube includes the following steps:
Step 1: 43kgPVC resin, 4kgACR, 6kgMBS, 6kgCPE, 3kg calcium stearate, 2kg zinc stearate, 28kg are weighed
Calcium carbonate, the titanium dioxide of 2kg rutile-type, 1kg lubricant, 3kg synthesis vegetable esters, 1kg toughener and 1kg paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 160 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 3
A kind of production technology of plum tube includes the following steps:
Step 1: weigh 57kgPVC resin, 3kgACR, 4kgMBS, 3kgCPE, 0.7kg calcium stearate, 1kg zinc stearate,
25kg calcium carbonate, the titanium dioxide of 3kg rutile-type, 0.6kg lubricant, 1.5kg synthesis vegetable esters, 0.6kg toughener and 0.6kg
Paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 170 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 4
A kind of production technology of plum tube includes the following steps:
Step 1: weigh 60kgPVC resin, 4kgACR, 2kgMBS, 4kgCPE, 0.5kg calcium stearate, 0.5kg zinc stearate,
23kg calcium carbonate, the titanium dioxide of 3.2kg rutile-type, 0.9kg lubricant, 0.5kg synthesis vegetable esters, 0.5kg toughener and
0.9kg paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 180 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 5
A kind of production technology of plum tube includes the following steps:
Step 1: weigh 50kgPVC resin, 5kgACR, 3kgMBS, 4kgCPE, 2.2kg calcium stearate, 3kg zinc stearate,
26kg calcium carbonate, the titanium dioxide of 2.9kg rutile-type, 0.7kg lubricant, 1.7kg synthesis vegetable esters, 0.7kg toughener and
0.8kg paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 190 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 6
A kind of production technology of plum tube includes the following steps:
Step 1: 51.2kgPVC resin, 1kgACR, 4kgMBS, 5kgCPE, 2.5kg calcium stearate, 2.7kg stearic acid are weighed
Zinc, 27kg calcium carbonate, the titanium dioxide of 3.5kg rutile-type, 0.8kg lubricant, 1.8kg synthesis vegetable esters, 0.8kg toughener and
0.7kg paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle is plasticized molten at 165 DEG C
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Embodiment 7
A kind of production technology of plum tube includes the following steps:
Step 1: weigh 50kgPVC resin, 1kgACR, 5kgMBS, 3kgCPE, 1.5kg calcium stearate, 1.8kg zinc stearate,
28kg calcium carbonate, the titanium dioxide of 4kg rutile-type, 0.5kg lubricant, 2.5kg synthesis vegetable esters, 0.9kg toughener and 0.8kg
Paraffin.
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；It will be weighed
The titanium dioxide of calcium carbonate and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by load weighted polyvinyl chloride resin, ACR, MBS, CPE, lubricant, synthesis vegetable esters, toughener and paraffin and rapid two
In compound stabilizer and compounded mix be uniformly mixed, obtain mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, gained particle and is plasticized at 175 DEG C and is melted
Melt, extrusion molding, cooling sizing, traction, coiling in mold, obtains plum tube.
Using embodiment 2 as reference group
Comparative example 1
The difference of comparative example 1 and implementation 2 is in comparative example 1 that impact modifier is not added, other to keep one with embodiment 2
It causes.
Comparative example 2
The difference of comparative example 2 and implementation 2 is in comparative example 2 that ACR and MBS is not added, other to keep one with embodiment 2
It causes.
Comparative example 3
The difference of comparative example 3 and implementation 2 is in comparative example 3 that MBS and CPE is not added, other to keep one with embodiment 2
It causes.
As a result it tests:
1), observe plum tube sample obtained by Examples 1 to 7 and comparative example 1~3, specimen surface is smooth, bubble-free, without splitting
Line, without layering, without obvious impurity and the defects of machining damage.
2), according to the shock resistance of the standard detection of KGB/T16420~1996 Examples 1 to 7 and the obtained sample of comparative example 1~3
Performance is impacted with D90 set hammer 1kkg1m at 0 DEG C, counts and record rupture very, the results are shown in Table 1；3), basis
The bending property of the standard detection of KGB/T16419~1996 Examples 1 to 7 and the obtained sample of comparative example 1~3, testing result such as table
Shown in 1；According to the tensile property of the standard detection of KGB/T16421~1996 Examples 1 to 7 and the obtained sample of comparative example 1~3, inspection
The results are shown in Table 1 for survey；
1 testing result record sheet of table
Table 1 is observed it is found that the sample of each plum tube in Examples 1 to 7 is either in tensile yield strength, resistance to outer load
Can, longitudinal rate of recovery is quiet, friction factor or drop impact experiment, be significantly better than that it is known in comparative example 1~3 made from plum blossom
Pipe；And that ACR, MBS, CPE impact modifier is not added in comparative example 1, then the plum tube sample in comparative example is in drop impact
Be broken into 90% in experiment, illustrate it is very poor without plum tube shock resistance that impact modifier is added, in comparative example 2 and right
In ratio 3, two kinds are only used in ACR, MBS, CPE impact modifier, and the plum tube in comparative example 2 and comparative example 3 is in punching of dropping hammer
The rupture hit in experiment is up to 60%, it is seen then that only when ACR, MBS, CPE impact modifier cooperate, collective effect is made
The rupture rate of the plum tube obtained is 10%, and rupture rate is minimum, and impact resistance is better.
Claims (10)
1. a kind of plum tube, it is characterised in that including following component: 40~60wt% of polyvinyl chloride resin, anti-impact modifier 6~
18wt%, 2~6wt% of 1~7wt% of compound stabilizer, 25~35wt% of compounded mix and auxiliary agent；
The anti-impact modifier include in ACR, MBS, CPE, ABS and EVA it is any two or more；
The compound stabilizer includes one of calcium stearate, zinc stearate and epoxidized soybean oil or a variety of；
The compounded mix includes any two kinds in calcium carbonate, titanium dioxide, diatomite and powdered rice hulls；
The auxiliary agent includes lubricant, plasticiser, toughener and paraffin.
2. a kind of plum tube according to claim 1, it is characterised in that the anti-impact modifier include ACR, MBS and
CPE, described ACR, MBS and CPE account for the 1~5wt%, 2~6wt% and 3~7wt% of plum tube total weight respectively.
3. a kind of plum tube according to claim 1, it is characterised in that the compound stabilizer includes calcium stearate and hard
Resin acid zinc, the calcium stearate and zinc stearate account for the 0.5~4wt% and 0.5~3wt% of plum tube total weight respectively.
4. a kind of plum tube according to claim 1, it is characterised in that the compounded mix includes calcium carbonate and titanium dioxide,
The calcium carbonate and titanium dioxide account for the 23~30wt% and 2~5wt% of plum tube total weight respectively.
5. a kind of plum tube according to claim 4, it is characterised in that the titanium dioxide is the titanium dioxide of rutile-type.
6. a kind of plum tube according to claim 1, it is characterised in that the plasticiser is synthesis vegetable esters.
7. a kind of plum tube according to claim 6, it is characterised in that the auxiliary agent includes 0.5~1wt% of lubricant, conjunction
At 0.5~1wt% of 0.5~3wt% of vegetable esters, 0.5~1wt% of toughener and paraffin.
8. described in any item a kind of plum tubes according to claim 1~7, it is characterised in that including following component: polyvinyl chloride resin 43
2~4wt% of~57wt%, ACR, 4~6wt% of MBS 3~5wt% and CPE, 1.5~3wt% of calcium stearate, zinc stearate 1~
2.5wt%, 25~28wt% of calcium carbonate, 3~4wt% of titanium dioxide of rutile-type, 0.6~0.9wt% of lubricant, synthesis vegetable esters
0.6~0.9wt% of 1.5~2wt%, 0.6~0.9wt% of toughener and paraffin.
9. the production technology of described in any item a kind of plum tubes according to claim 1~8, it is characterised in that the production technology
Include the following steps:
Step 1: polyvinyl chloride resin, anti-impact modifier, compound stabilizer, compounded mix and auxiliary agent are weighed by setting ratio；
Step 2: weighed calcium stearate and zinc stearate are uniformly mixed, compound stabilizer is obtained；By weighed carbonic acid
The titanium dioxide of calcium and rutile-type is uniformly mixed and obtains compounded mix；
Step 3: by polyvinyl chloride resin, ACR, MBS, CPE, compound stabilizer, compounded mix, lubricant, synthesis vegetable esters, toughener
It is uniformly mixed with paraffin, obtains mixture；
Step 4: the mixture in step 3 is transported to extruding pelletization in extruder, the particle plastifying fusion made, in mold
Interior extrusion molding, cooling sizing, traction, coiling, obtain plum tube.
10. a kind of production technology of plum tube according to claim 9, it is characterised in that the made particle plasticizing is molten
When melting, melting temperature is 150~190 DEG C.
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