CN102977509A - Manufacturing method of PVC (polyvinyl chloride) composition - Google Patents
Manufacturing method of PVC (polyvinyl chloride) composition Download PDFInfo
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- CN102977509A CN102977509A CN 201210527016 CN201210527016A CN102977509A CN 102977509 A CN102977509 A CN 102977509A CN 201210527016 CN201210527016 CN 201210527016 CN 201210527016 A CN201210527016 A CN 201210527016A CN 102977509 A CN102977509 A CN 102977509A
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Abstract
The invention discloses a manufacturing method of a PVC (polyvinyl chloride) composition, which is characterized by comprising the following steps: (1) carrying out hot mixing on 50-80 parts by weight of PVC resin powder, 3-6 parts by weight of stabilizer, 5-15 parts by weight of light calcium carbonate, 5-10 parts by weight of anti-shock agent, 2-8 parts by weight of titanium white, 1-7 parts by weight of plasticizer, 3-7 parts by weight of paraffin, 4-9 parts by weight of stearic acid and 6-12 parts by weight of antioxidant for 6-10 minutes; and (2) carrying out cold mixing on the material subjected to hot mixing to 38 DEG C below. The manufacturing method disclosed by the invention has the advantages of excellent working properties, simple manufacturing process and high safety. In the working process of the PVC product, the PVC composition can promote plastication, and enhance the dispersity of the inorganic substances and the working flowability of the PVC melt; and the PVC composition enhances the low-temperature impact strength of the product, and can improve the tensile strength and elongation at break.
Description
Technical field
The present invention relates to the PVC technical field, be specifically related to a kind of manufacture method of PVC composition.
Background technology
PVC flexible pipe in the market is of a great variety, and most PVC flexible pipe all can contact with the external world in use, produce friction, so the skin of flexible pipe need to have high-wearing feature.And the flexible pipe internal layer generally is used for the guiding liquids circulation, less demanding to wear resistance.
Existing PVC composite soft tube, ectonexine generally all are to adopt identical formula materials to produce.Ectonexine adopts the flexible pipe of the PVC material produce of the common polymerization degree, and wear resistance is not strong, causes work-ing life not long; Ectonexine adopts the flexible pipe of the PVC material produce of high-polymerization degree, and wear resistance is enhanced, and work-ing life is longer, but cost is high, often can not be accepted by the user.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is that the manufacture method of the PVC composition that a kind of processing characteristics is excellent, manufacturing processed is simple, safe is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of manufacture method of PVC composition may further comprise the steps:
(1) presses following weight part with polyvinyl chloride resin powder 50-80 part, stablizer 3-6 part, light calcium carbonate 5-15 part, anti-impact agent 5-10 part, titanium dioxide 2-8 part, softening agent 1-7 part, paraffin 3-7 part, it is mixed that stearic acid 4-9 part, oxidation inhibitor 6-12 part are carried out heat, and the mixed time of heat is 6-10 minute;
(2) material after heat is mixed carries out cold mixed, and cold mixed temperature is below 38 ℃;
(3) step (2) being made material, to carry out low speed under mixing roll 90-110 ℃ mixing, and afterwards the material after mixing is delivered to twin screw extruder and under 130-1500 ℃, extrude, cooling and shaping, traction, sawing get the PVC section bar.
The manufacture method of above-mentioned PVC composition, the anti-impact agent of MBS class is adopted in described anti-impact agent.
The manufacture method advantage of PVC composition of the present invention is:
1, the manufacture method of PVC composition of the present invention, it can promote plasticizing in the course of processing of PVC goods, strengthens the dispersion of inorganics and the processing fluidity of PVC melt; Improved the goods low temperature impact strength.Can also promote tensile strength and elongation at break.
2, the manufacture method of PVC composition of the present invention, the advantage such as thermally-stabilised efficient is high, comprehensive cost is low, technological operation is convenient.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1, and a kind of manufacture method of PVC composition may further comprise the steps:
(1) by following weight part with 50 parts in polyvinyl chloride resin powder, 3 parts of stablizers, 5 parts of light calcium carbonates, 5 parts of anti-impact agent, 2 parts of titanium dioxides, 1 part in softening agent, it is mixed that 3 parts in paraffin, 4 parts of stearic acid, 6 parts in oxidation inhibitor carry out heat, the time that heat is mixed is 6 minutes;
(2) material after heat is mixed carries out cold mixed, and cold mixed temperature is below 38 ℃;
(3) step (2) being made material, to carry out low speed to 90 ℃ of the mixing rolls mixing, and afterwards the material after mixing is delivered to twin screw extruder and under 130 ℃, extrude, cooling and shaping, traction, sawing get the PVC section bar.
The anti-impact agent of MBS class is adopted in above-mentioned anti-impact agent.
Embodiment 2, and a kind of manufacture method of PVC composition may further comprise the steps:
(1) by following weight part with 65 parts in polyvinyl chloride resin powder, 5 parts of stablizers, 10 parts of light calcium carbonates, 7 parts of anti-impact agent, 5 parts of titanium dioxides, 5 parts in softening agent, it is mixed that 5 parts in paraffin, 6 parts of stearic acid, 9 parts in oxidation inhibitor carry out heat, the time that heat is mixed is 8 minutes;
(2) material after heat is mixed carries out cold mixed, and cold mixed temperature is below 38 ℃;
(3) step (2) being made material, to carry out low speed to 100 ℃ of the mixing rolls mixing, and afterwards the material after mixing is delivered to twin screw extruder and under 140 ℃, extrude, cooling and shaping, traction, sawing get the PVC section bar.
The anti-impact agent of MBS class is adopted in above-mentioned anti-impact agent.
Embodiment 3, and a kind of manufacture method of PVC composition may further comprise the steps:
(1) by following weight part with 80 parts in polyvinyl chloride resin powder, 6 parts of stablizers, 15 parts of light calcium carbonates, 10 parts of anti-impact agent, 8 parts of titanium dioxides, 7 parts in softening agent, it is mixed that 7 parts in paraffin, 9 parts of stearic acid, 12 parts in oxidation inhibitor carry out heat, the time that heat is mixed is 10 minutes;
(2) material after heat is mixed carries out cold mixed, and cold mixed temperature is below 38 ℃;
(3) step (2) being made material, to carry out low speed to 110 ℃ of the mixing rolls mixing, and afterwards the material after mixing is delivered to twin screw extruder and under 1500 ℃, extrude, cooling and shaping, traction, sawing get the PVC section bar.
The anti-impact agent of MBS class is adopted in above-mentioned anti-impact agent.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, change, interpolation or replacement all should belong to protection scope of the present invention.
Claims (2)
1. the manufacture method of a PVC composition is characterized in that: may further comprise the steps:
(1) presses following weight part with polyvinyl chloride resin powder 50-80 part, stablizer 3-6 part, light calcium carbonate 5-15 part, anti-impact agent 5-10 part, titanium dioxide 2-8 part, softening agent 1-7 part, paraffin 3-7 part, it is mixed that stearic acid 4-9 part, oxidation inhibitor 6-12 part are carried out heat, and the mixed time of heat is 6-10 minute;
(2) material after heat is mixed carries out cold mixed, and cold mixed temperature is below 38 ℃;
(3) step (2) being made material, to carry out low speed under mixing roll 90-110 ℃ mixing, and afterwards the material after mixing is delivered to twin screw extruder and under 130-150 ℃, extrude, cooling and shaping, traction, sawing get the PVC section bar.
2. the manufacture method of PVC composition according to claim 1 is characterized in that: the anti-impact agent of described anti-impact agent employing MBS class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210527016 CN102977509A (en) | 2012-12-10 | 2012-12-10 | Manufacturing method of PVC (polyvinyl chloride) composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210527016 CN102977509A (en) | 2012-12-10 | 2012-12-10 | Manufacturing method of PVC (polyvinyl chloride) composition |
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| Publication Number | Publication Date |
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| CN102977509A true CN102977509A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210527016 Pending CN102977509A (en) | 2012-12-10 | 2012-12-10 | Manufacturing method of PVC (polyvinyl chloride) composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694596A (en) * | 2013-12-05 | 2014-04-02 | 江苏金波新材料科技有限公司 | Formula of antifreezing PVC (polyvinyl chloride) tube |
| CN104387706A (en) * | 2014-12-18 | 2015-03-04 | 重庆鸽牌电工材料有限公司 | Manufacturing method of perforated pipes for irrigation |
| CN105980128A (en) * | 2014-02-13 | 2016-09-28 | Sika技术股份公司 | Method for producing ready-to-use soft PVC films or profiles |
| CN105980123A (en) * | 2014-02-13 | 2016-09-28 | Sika技术股份公司 | Method for producing semifinished plasticized PVC products |
-
2012
- 2012-12-10 CN CN 201210527016 patent/CN102977509A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694596A (en) * | 2013-12-05 | 2014-04-02 | 江苏金波新材料科技有限公司 | Formula of antifreezing PVC (polyvinyl chloride) tube |
| CN105980128A (en) * | 2014-02-13 | 2016-09-28 | Sika技术股份公司 | Method for producing ready-to-use soft PVC films or profiles |
| CN105980123A (en) * | 2014-02-13 | 2016-09-28 | Sika技术股份公司 | Method for producing semifinished plasticized PVC products |
| US10059814B2 (en) | 2014-02-13 | 2018-08-28 | Sika Technology Ag | Method for producing ready-to-use soft PVC films or profiles |
| CN105980128B (en) * | 2014-02-13 | 2019-04-12 | Sika技术股份公司 | The method for preparing instant soft pvc film or profile |
| CN105980123B (en) * | 2014-02-13 | 2019-05-07 | Sika技术股份公司 | Prepare soft pvc process of semi-finished |
| CN104387706A (en) * | 2014-12-18 | 2015-03-04 | 重庆鸽牌电工材料有限公司 | Manufacturing method of perforated pipes for irrigation |
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Application publication date: 20130320 |