CN103642157A - New method for synchronously reinforcing and toughening PVC (polyvinyl chloride) pipe - Google Patents
New method for synchronously reinforcing and toughening PVC (polyvinyl chloride) pipe Download PDFInfo
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- CN103642157A CN103642157A CN201310678185.7A CN201310678185A CN103642157A CN 103642157 A CN103642157 A CN 103642157A CN 201310678185 A CN201310678185 A CN 201310678185A CN 103642157 A CN103642157 A CN 103642157A
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- parts
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- pvc
- polyvinyl chloride
- barrel
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Classifications
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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
Abstract
The invention relates to a new method for synchronously reinforcing and toughening a PVC (polyvinyl chloride) pipe. The method comprises the following steps: (1) weighing the following components in parts by weight: 100 parts of PVC resin, 8-10 parts of light calcium powder, 2-3 parts of calcium-zinc composite stabilizer, 0.5-1 part of dicumyl peroxide, 2-4 parts of methyl methacrylate-butadiene-styrene copolymer, 0.1-0.3 part of stearic acid, 0.1-0.3 part of PE wax, 0.08-0.1 part of carbon black, 10-15 parts of modified aluminum oxide and 2-4 parts of fluorine-containing polymer assistant PPA functional masterbatch; and (2) uniformly mixing the components, and extruding and forming in a PVC pipe extruder. The new method provided by the invention is simple to operate and can improve the strength and toughness at the same time.
Description
Technical field
The present invention relates to agriculture water delivery field, relate in particular to a kind of novel method of synchronous enhancing toughening PVC tubing.
Background technology
Polyvinyl chloride (PVC) is a kind of important thermoplastics, has the outstanding features such as abundant raw material, manufacturing process be ripe, cheap, of many uses, is that in current world market, output and demand are only second to poly second largest resins for universal use.PVC complete processing is simple, has larger advantage in performance and price, has very consequence in industrial production, is widely used in the industries such as industry, agricultural, building, communications and transportation, electric power, telecommunication and packing; Also the figure of PVC is seen everywhere in fields such as plastic pipe, pipe fitting, section bar and profiled material, soft liquid transport tube, film, cable sheath, plastic door-window, leatheroids.
In recent years, PVC pipe industry development is rapid, but due to PVC thermostability, poor heat resistance, plastification is unstable, volatile migration; While preparing boardy product, melt apparent viscosity is high, and processing fluidity is poor, and boardy product is fragility, and shock resistance is poor, has greatly limited its purposes.Therefore pvc pipe material, how to develop high-strength and high ductility seems particularly important.
Summary of the invention
Technical problem to be solved by this invention is to provide the novel method of the synchronous enhancing toughening PVC tubing that a kind of simple to operate, intensity and toughness increases simultaneously.
For addressing the above problem, the novel method of a kind of synchronous enhancing toughening PVC tubing of the present invention, comprises the following steps:
(1) by following weight parts, take each component:
100 parts of polyvinyl chloride resins, 8 ~ 10 parts of light calcium carbonate powders, 2 ~ 3 parts of calcium-zinc composite stabilizing agents, 0.5 ~ 1 part of dicumyl peroxide, 2 ~ 4 parts of MBSs, 0.1 ~ 0.3 part of stearic acid, 0.1 ~ 0.3 part, PE wax, 0.08 ~ 0.1 part of carbon black, 10 ~ 15 parts of modified aluminas, 2 ~ 4 parts of fluoropolymer auxiliary agent PPA functional master batchs;
(2) after each component being mixed, putting into pvc pipe material forcing machine, is that 168 ~ 175 ℃, barrel second segment temperature are that 170 ~ 180 ℃, the 3rd section of temperature of barrel are that 175 ~ 185 ℃, head first paragraph temperature are that 175 ~ 185 ℃, head second segment temperature are 170 ~ 175 ℃, to produce temperature of cooling water be that 10 ~ 15 ℃, production rate are extrusion moulding under the condition of 1.5 ~ 2 m/min in barrel first paragraph temperature.
The polyvinyl chloride resin of described step in is (1) SG-5 type.
The carbon black of described step in is (1) ZY-5 type.
The particle diameter of the modified aluminas of described step in is (1) 1000 orders.
The present invention compared with prior art has the following advantages:
1, the present invention has added MBS(MBS in PVC), dicumyl peroxide, the decomposition temperature of dicumyl peroxide is 120 ~ 125 ℃, and the temperature of pvc pipe material extrusion moulding is all on it, therefore in the process of tube extrusion moulding, dicumyl peroxide can decompose, and forms highly active free radical.The free chance attack of the high reactivity PVC molecule segment forming is captured its hydrogen atom and is formed PVC free radical; Meanwhile, the two keys of high mars free radical in also can attack MBS form MBS free radicals, thereby make formed PVC, MBS free radical inner, there is chemical reaction each other, single stage method can realize the enhancing of PVC and toughness reinforcing simultaneously, strengthen toughening effect obvious, further widened added value and the range of application thereof of pvc pipe material.
2, the present invention simple to operate, be easy to realize.
Embodiment
embodiment 1a novel method for synchronous enhancing toughening PVC tubing, comprises the following steps:
(1) by following weight parts (kg/kg), take each component:
100 parts of polyvinyl chloride resins, 8 parts of light calcium carbonate powders, 2 parts of calcium-zinc composite stabilizing agents, 0.5 part of dicumyl peroxide, 2 parts of MBSs, 0.1 part of stearic acid, 0.1 part, PE wax, 0.08 part of carbon black, 10 parts of modified aluminas, 2 parts of fluoropolymer auxiliary agent PPA functional master batchs;
(2) after each component being mixed, putting into pvc pipe material forcing machine, is that 168 ℃, barrel second segment temperature are that 170 ℃, the 3rd section of temperature of barrel are that 175 ℃, head first paragraph temperature are that 175 ℃, head second segment temperature are 170 ℃, to produce temperature of cooling water be that 10 ℃, production rate are extrusion moulding under the condition of 1.5 m/min in barrel first paragraph temperature.
embodiment 2a novel method for synchronous enhancing toughening PVC tubing, comprises the following steps:
(1) by following weight parts (kg/kg), take each component:
100 parts of polyvinyl chloride resins, 10 parts of light calcium carbonate powders, 3 parts of calcium-zinc composite stabilizing agents, 1 part of dicumyl peroxide, 4 parts of MBSs, 0.3 part of stearic acid, 0.3 part, PE wax, 0.1 part of carbon black, 15 parts of modified aluminas, 4 parts of fluoropolymer auxiliary agent PPA functional master batchs;
(2) after each component being mixed, putting into pvc pipe material forcing machine, is that 175 ℃, barrel second segment temperature are that 180 ℃, the 3rd section of temperature of barrel are that 185 ℃, head first paragraph temperature are that 185 ℃, head second segment temperature are 175 ℃, to produce temperature of cooling water be that 15 ℃, production rate are extrusion moulding under the condition of 2 m/min in barrel first paragraph temperature.
embodiment 3a novel method for synchronous enhancing toughening PVC tubing, comprises the following steps:
(1) by following weight parts (kg/kg), take each component:
100 parts of polyvinyl chloride resins, 9 parts of light calcium carbonate powders, 2.5 parts of calcium-zinc composite stabilizing agents, 0.8 part of dicumyl peroxide, 3 parts of MBSs, 0.2 part of stearic acid, 0.2 part, PE wax, 0.09 part of carbon black, 13 parts of modified aluminas, 3 parts of fluoropolymer auxiliary agent PPA functional master batchs;
(2) after each component being mixed, putting into pvc pipe material forcing machine, is that 170 ℃, barrel second segment temperature are that 175 ℃, the 3rd section of temperature of barrel are that 180 ℃, head first paragraph temperature are that 180 ℃, head second segment temperature are 172 ℃, to produce temperature of cooling water be that 12 ℃, production rate are extrusion moulding under the condition of 1.8 m/min in barrel first paragraph temperature.
Above-mentioned
embodiment 1 ~ 3in, polyvinyl chloride resin is SG-5 type; Carbon black is ZY-5 type; The particle diameter of modified aluminas is 1000 orders.
Claims (4)
1. synchronously strengthen a novel method for toughening PVC tubing, comprise the following steps:
(1) by following weight parts, take each component:
100 parts of polyvinyl chloride resins, 8 ~ 10 parts of light calcium carbonate powders, 2 ~ 3 parts of calcium-zinc composite stabilizing agents, 0.5 ~ 1 part of dicumyl peroxide, 2 ~ 4 parts of MBSs, 0.1 ~ 0.3 part of stearic acid, 0.1 ~ 0.3 part, PE wax, 0.08 ~ 0.1 part of carbon black, 10 ~ 15 parts of modified aluminas, 2 ~ 4 parts of fluoropolymer auxiliary agent PPA functional master batchs;
(2) after each component being mixed, putting into pvc pipe material forcing machine, is that 168 ~ 175 ℃, barrel second segment temperature are that 170 ~ 180 ℃, the 3rd section of temperature of barrel are that 175 ~ 185 ℃, head first paragraph temperature are that 175 ~ 185 ℃, head second segment temperature are 170 ~ 175 ℃, to produce temperature of cooling water be that 10 ~ 15 ℃, production rate are extrusion moulding under the condition of 1.5 ~ 2 m/min in barrel first paragraph temperature.
2. the novel method of a kind of synchronous enhancing toughening PVC tubing as claimed in claim 1, is characterized in that: the polyvinyl chloride resin of described step in is (1) SG-5 type.
3. the novel method of a kind of synchronous enhancing toughening PVC tubing as claimed in claim 1, is characterized in that: the carbon black of described step in is (1) ZY-5 type.
4. the novel method of a kind of synchronous enhancing toughening PVC tubing as claimed in claim 1, is characterized in that: the particle diameter of the modified aluminas of described step in is (1) 1000 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678185.7A CN103642157A (en) | 2013-12-13 | 2013-12-13 | New method for synchronously reinforcing and toughening PVC (polyvinyl chloride) pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678185.7A CN103642157A (en) | 2013-12-13 | 2013-12-13 | New method for synchronously reinforcing and toughening PVC (polyvinyl chloride) pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103642157A true CN103642157A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310678185.7A Pending CN103642157A (en) | 2013-12-13 | 2013-12-13 | New method for synchronously reinforcing and toughening PVC (polyvinyl chloride) pipe |
Country Status (1)
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| CN (1) | CN103642157A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304957A (en) * | 2000-10-26 | 2001-07-25 | 招远市海星塑料厂 | Foamed UPVC plastic pipe and its preparing process |
| CN102134360A (en) * | 2011-05-10 | 2011-07-27 | 上海远洲管业有限公司 | Preparation method of super-strong high temperature-resistant chlorinated polyvinyl chloride tubes |
-
2013
- 2013-12-13 CN CN201310678185.7A patent/CN103642157A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304957A (en) * | 2000-10-26 | 2001-07-25 | 招远市海星塑料厂 | Foamed UPVC plastic pipe and its preparing process |
| CN102134360A (en) * | 2011-05-10 | 2011-07-27 | 上海远洲管业有限公司 | Preparation method of super-strong high temperature-resistant chlorinated polyvinyl chloride tubes |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |