CN108794937A - A kind of technique for the PVC pipe formula that toughness is strong - Google Patents
A kind of technique for the PVC pipe formula that toughness is strong Download PDFInfo
- Publication number
- CN108794937A CN108794937A CN201810776380.6A CN201810776380A CN108794937A CN 108794937 A CN108794937 A CN 108794937A CN 201810776380 A CN201810776380 A CN 201810776380A CN 108794937 A CN108794937 A CN 108794937A
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- China
- Prior art keywords
- toughness
- pvc pipe
- strong
- formula
- pvc
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Classifications
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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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/02—Heterophasic composition
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of techniques for the PVC pipe formula that toughness is strong, belong to PVC technical fields.Step 1: weighing each component by formula metering requirement, it is added in high-speed mixer and is stirred, material is by temperature arrising caused by friction to 90~110 DEG C, stop stirring, it is cooled to 20~45 DEG C of discharging standby steps two, extrusion molding, cutting in tube forming equipment by step 1 resulting material, for the control of extruder barrel temperature at 130~200 DEG C, die temperature controls 135~200 DEG C.
Description
Technical field
The present invention relates to the fields PVC, specifically, being related to a kind of technique for the PVC pipe formula that toughness is strong.
Background technology
Polyvinyl chloride (PVC) is the high-molecular compound made of polymerization of vinyl choride monomer, is the larger general plastic of yield
One of item kind；Because its chemical stability, acid resistance and alkali resistance it is excellent due to there is excellent resistance to corrosion, industry, agriculture
It is widely used in terms of the fields such as industry, municipal works, building water supply and drainage.
Chlorine atom containing side group in polrvinyl chloride structure unit, thus molecule chain rigidity is larger, polyvinyl chloride toughness is low, resistance to punching
Hit poor performance so that during storage and transportation, installation and use non-plastic fracture easily occurs for polychloroethylene pipes.To improve polychlorostyrene second
The toughness of alkene material, generally all utilize styrene butadiene rubber sbr, haloflex as toughener, however these toughener due to
Polyvinyl chloride molecular-chain polarr difference it is larger, generally require it is relatively large can just play toughening effect, this may result in modified polychlorostyrene
Vinyl loss of tensile strength and heat-resistant deforming performance decline.Meanwhile in butadiene-styrene rubber strand containing it is double build, the knots such as phenyl ring
Structure, can also cause modified PVC resin weatherability to be deteriorated, and service life shortens.
Through retrieval, it is resistance to disclose a kind of high-impact by Chinese patent publication No. CN103739988B, publication date 2016.08.31
Hydraulic pressure irrigates PVC pipe, it is made of the raw material of following weight parts：100 parts of SG-5 types resin-oatmeal, 8~10 parts of precipitated calcium carbonate,
2.0~2.4 parts of calcium-zinc composite stabilizing agent, ACR-2013~5 part, CPE-135A5~7 part, 0.2~0.4 part of compounded lubricant, charcoal
Black 0.6~0.9 part, 13~17 parts of aluminium oxide.The viscosity number of SG-5 type resin-oatmeals is 110~116；The fineness of the precipitated calcium carbonate
For 400~600 mesh；The compounded lubricant refers to stearic acid and PE waxes by 1kg：The ratio of 0.7~0.8kg mixes；Institute
It is ZY-5 types to state carbon black；The grain size of the aluminium oxide is 1000~1200 mesh.The high-impact hydraulic pressure resistant of the invention irrigates PVC pipe
Aging speed is very fast, and quality drastically declines after aging.
Invention content
1. a kind of technique for the PVC pipe formula that toughness is strong.Step is：
Step 1: weighing each component by formula metering requirement, it is added in high-speed mixer and is stirred, material is risen by rubbing
Temperature stops stirring, it is spare to be cooled to 20~45 DEG C of dischargings to 90~110 DEG C
Step 2: extrusion molding, cutting in tube forming equipment, the control of extruder barrel temperature exist by step 1 resulting material
130~200 DEG C, die temperature controls 135~200 DEG C.
Compared with prior art, the present invention has following remarkable advantage：
(1) high impact PVC pipe formula of the invention, to improve the toughness and impact resistance of PVC, the present invention using MBS,
ACR is combined into composite toughing agent and is modified to PVC, has good compatibility with PVC；Wherein MBS resins are by methyl-prop
The nucleocapsid terpolymer that e pioic acid methyl ester, butadiene and styrene copolymerisation obtain, ACR resins are acrylic ester copolymers
Object.The stabilizer is calcium zinc stabilizer, a kind of or both compound in rare-earth stabilizer.Lightweight in formula
Activated Calcium carbonate is mainly used as filler, while also functioning to the effect for improving plastic hardness, stearic acid, polyethylene wax group in formula
Synthesize compounded lubricant；Titanium dioxide in formula is mainly used as colorant use；
(2) high impact PVC pipe formula of the invention carries out toughening modifying to PVC using MBS resins and ACR resin compoundeds, has
Effect improves the impact strength of PVC plastic, especially shows excellent impact property under cryogenic, effectively increases
The toughness of PVC pipe.The present invention uses stabilizer for low-toxicity stabilizer, effectively increases the environmental-protecting performance of PVC pipe.Together
When, PVC plastic material formula provided by the invention can be used for being molded impact-resistant plastic plate, and purposes is relatively broad；
(3) high impact PVC pipe formula of the invention, MBS resins, ACR resins are with polymethyl methacrylate (PMMA)
Shell structurre.Since PMMA polarity is stronger, glass transition temperature is higher, also preferable with Corvic compatibility.MBS resins,
ACR resins can in the form of dispersed phase with polyvinyl chloride continuous phase form so-called " sea-island " structure, with less amount of MBS,
ACR can make pvc material have higher impact strength, toughening effect ideal.It is advantageous using MBS resins, ACR resins
In promoting polyvinyl chloride plasticizing, modified material mobility is set to become since long-chain molecule tangles when can avoid rubber as toughener
The problem of difference.MBS resins, ACR resin weatherabilities are excellent, are also beneficial to improve the service life of pvc material；
(4) high impact PVC pipe formula of the invention, light active calcium carbonate made from vacuum freeze-drying technique, activity
Also there is extremely strong permeability on the basis of can closely be merged with other components much larger than general activated Calcium carbonate,
While improving tubing toughness, the impact of tubing is greatly improved.
Specific implementation mode
1. a kind of technique for the PVC pipe formula that toughness is strong.Step is：
Step 1: weighing each component by formula metering requirement, it is added in high-speed mixer and is stirred, material is risen by rubbing
Temperature stops stirring, it is spare to be cooled to 20~45 DEG C of dischargings to 90~110 DEG C
Step 2: extrusion molding, cutting in tube forming equipment, the control of extruder barrel temperature exist by step 1 resulting material
130~200 DEG C, die temperature controls 135~200 DEG C.
Schematically the present invention and embodiments thereof are described above, description is not limiting, in embodiment
Shown in be also one of embodiments of the present invention, actual structure is not limited to this.So if this field it is common
Technical staff is enlightened by it, without departing from the spirit of the invention, is not inventively designed and the technical side
The similar frame mode of case and embodiment, are within the scope of protection of the invention.
Claims (1)
1. a kind of technique for the PVC pipe formula that toughness is strong：Step is：
Step 1: weighing each component by formula metering requirement, it is added in high-speed mixer and is stirred, material is risen by rubbing
Temperature stops stirring, it is spare to be cooled to 20~45 DEG C of dischargings to 90~110 DEG C
Step 2: extrusion molding, cutting in tube forming equipment, the control of extruder barrel temperature exist by step 1 resulting material
130~200 DEG C, die temperature controls 135~200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776380.6A CN108794937A (en) | 2018-07-16 | 2018-07-16 | A kind of technique for the PVC pipe formula that toughness is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776380.6A CN108794937A (en) | 2018-07-16 | 2018-07-16 | A kind of technique for the PVC pipe formula that toughness is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108794937A true CN108794937A (en) | 2018-11-13 |
Family
ID=64076768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810776380.6A Withdrawn CN108794937A (en) | 2018-07-16 | 2018-07-16 | A kind of technique for the PVC pipe formula that toughness is strong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108794937A (en) |
-
2018
- 2018-07-16 CN CN201810776380.6A patent/CN108794937A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181113 |
|
| WW01 | Invention patent application withdrawn after publication |