CN105255042A - Production formula for improving flatness of inner wall of PVC (polyvinyl chloride) pipe - Google Patents
Production formula for improving flatness of inner wall of PVC (polyvinyl chloride) pipe Download PDFInfo
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- CN105255042A CN105255042A CN201510666372.2A CN201510666372A CN105255042A CN 105255042 A CN105255042 A CN 105255042A CN 201510666372 A CN201510666372 A CN 201510666372A CN 105255042 A CN105255042 A CN 105255042A
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Abstract
The invention discloses a production formula for improving the flatness of the inner wall of a PVC (polyvinyl chloride) pipe. The production formula comprises components in parts by mass as follows: 100 parts of PVC resin, 1-2 parts of a silicon modified processing aid, 4-5 parts of a stabilizer, 15-20 parts of activated calcium carbonate, 2-4 parts of titanium dioxide, 0.2-0.4 parts of an internal lubricant and 0.6-0.8 parts of an external lubricant. The production formula for improving the flatness of the inner wall of the PVC (polyvinyl chloride) pipe is safe, non-toxic and pollution-free and has higher environmental protection and safety, with adoption of the PVC-affinity organosilicon processing aid with high degree of polymerization, the physical properties are improved substantially, the melt viscosity can be reduced effectively, the surface glossiness of the pipe is improved, by means of matched use with the internal lubricant and the external lubricant, the friction coefficient of the surface is reduced to a great extent, the anti-abrasion performance of the pipe is improved, and the production quality of the PVC pipe is improved while the problems of low flatness of the inner wall of the pipe, low surface glossiness and high probability of dirt accumulation after long-time use in the prior art are solved.
Description
[technical field]
The present invention relates to PVC production technical field, particularly a kind of production formula improving PVC inwall planeness.
[background technology]
In the last few years, along with expanding economy, the raising of people's living standard, the maximum focus of building water supply and drainage is the widespread use of novel tube.People to building function and health conditions requiring more and more higher, especially the choose reasonable of tubing is for guaranteeing that buildings using function plays vital effect.At present, building water supply and drainage common pipe materials mainly contains plastics tubing, metal tube and multiple-unit tube three kinds.Market gets more and more to the demand of free of contamination novel plumbing tubing.
On building drainage pipeline, the normal plastics tubing used is hard polvinyl choride pipe, manage also known as UPVC, it has surface hardness and tensile strength is excellent, pipe safety coefficient is high, ageing resistance is good, long service life, the advantages such as thermotolerance, erosion resistance are strong, pollution-free, are applied in industry-by-industry more and more widely.
Existing market requires to improve to building water supply and drainage pipe material inner wall, to product inwall planeness also corresponding raising, and often there is unfairness phenomenon in the drainage pipe inwall of existing production, and after causing long-time use, dirt stagnates, cause the drainage performance of water shoot greatly to reduce, make troubles to user.For solving the unfairness phenomenon of pipe material inner wall, being necessary to carry out redesign adjustment to formula, proposing a kind of production formula improving PVC inwall planeness.
[summary of the invention]
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of production formula improving PVC inwall planeness is provided, it is intended to solve, and pipe material inner wall planeness in prior art is not high, and surface smoothness is low, the long-time technical problem using rear dirt easily to pile up.
For achieving the above object, the present invention proposes a kind of production formula improving PVC inwall planeness, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 ~ 2 part, stablizer: 4 ~ 5 parts, activated Calcium carbonate: 15 ~ 20 parts, titanium dioxide: 2 ~ 4 parts, internal lubricant: 0.2 ~ 0.4 part, external lubricant: 0.6 ~ 0.8 part.
As preferably, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 part, stablizer: 4 parts, activated Calcium carbonate: 15 parts, titanium dioxide: 2 parts, internal lubricant: 0.2 part, external lubricant: 0.6 part.
As preferably, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1.5 parts, stablizer: 4.5 parts, activated Calcium carbonate: 17.5 parts, titanium dioxide: 3 parts, internal lubricant: 0.3 part, external lubricant: 0.7 part.
As preferably, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 2 parts, stablizer: 5 parts, activated Calcium carbonate: 20 parts, titanium dioxide: 4 parts, internal lubricant: 0.4 part, external lubricant: 0.8 part.
As preferably, described polyvinyl chloride resin is SG5 type polyvinyl chloride resin.
As preferably, described Si modification processing aid is the organosilicon processing aid of high-polymerization degree parent PVC, by the organosilicon polymer of the ultra-high molar mass of high-content and the mixture of fine solid meal, and median size≤0.1 μm of fine solid meal.
As preferably, described stablizer adopts the rare earth PVC stabilizer efficient, nontoxic, synergetic property is good.
As preferably, described activated Calcium carbonate adopts the super fine calcium carbonate of low oil-absorption(number), calcium carbonate powder median size≤0.02 μm, and oil-absorption(number) DOP is 20 ~ 22.
As preferably, described titanium dioxide is Rutile type Titanium Dioxide.
As preferably, described internal lubricant is stearic acid, stearic acid butyl ester, glyceryl monostearate, one or more combination of stearyl alcohol, and described external lubricant is macromolecular solid paraffin body, metallic soap, stearic one or more combination.
Beneficial effect of the present invention: compared with prior art, a kind of production formula improving PVC inwall planeness provided by the invention, adopt the organosilicon processing aid of high-polymerization degree parent PVC, with polyvinyl chloride resin, there is stronger consistency, have and promote PVC plastic, significantly can improve the physicals of product, effectively can reduce melt viscosity again simultaneously, strengthening lubrication and increase brightness, reduce comprehensive effect that processing middle-end end effect is answered, reduce power consumption of polymer processing, substantially improve the surface gloss of tubing, simultaneously, coordinate internal lubricant, the use of external lubricant, reduce the frictional coefficient on surface to a great extent, improve the abrasion resistance of tubing, in addition, activated Calcium carbonate adopts the super fine calcium carbonate of low oil-absorption(number), good with resin affinity, be conducive to the tension improving tubing, resistance to compression, wear resisting property, after mixing, the fusion time shortens, balancing torque reduces, increase the surface gloss of tubing, and the equal safety non-toxic of each component in formula, solve pipe material inner wall planeness in prior art not high, surface smoothness is low, while after long-time use, dirt easily piles up problem, improve the feature of environmental protection and the security of tubing.
Feature of the present invention and advantage will be described in detail by embodiment.
[embodiment]
For making the object, technical solutions and advantages of the present invention clearly understand, below by embodiment, the present invention is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the present invention, is not limited to scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
The embodiment of the present invention provides a kind of production formula improving PVC inwall planeness, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 ~ 2 part, stablizer: 4 ~ 5 parts, activated Calcium carbonate: 15 ~ 20 parts, titanium dioxide: 2 ~ 4 parts, internal lubricant: 0.2 ~ 0.4 part, external lubricant: 0.6 ~ 0.8 part.
Wherein, described polyvinyl chloride resin is SG5 type polyvinyl chloride resin, described stablizer adopts the rare earth PVC stabilizer efficient, nontoxic, synergetic property is good, described titanium dioxide is Rutile type Titanium Dioxide, described internal lubricant is stearic acid, stearic acid butyl ester, glyceryl monostearate, one or more combination of stearyl alcohol, and described external lubricant is macromolecular solid paraffin body, metallic soap, stearic one or more combination.
Further, described Si modification processing aid is the organosilicon processing aid of high-polymerization degree parent PVC, by the organosilicon polymer of the ultra-high molar mass of high-content and the mixture of fine solid meal, median size≤0.1 μm of fine solid meal, improve flow characteristics, with polyvinyl chloride resin, there is stronger consistency, good uniformity, significantly can improve the physicals of product, substantially improve the surface gloss of tubing, coordinate inside and outside lubricant to use simultaneously, further increase smooth finish and the planeness of PVC surfaces externally and internally.
Further, described activated Calcium carbonate adopts the super fine calcium carbonate of low oil-absorption(number), calcium carbonate powder median size≤0.02 μm, oil-absorption(number) DOP is 20 ~ 22, there is the features such as whiteness is high, good fluidity, glossiness are good, be uniformly dispersed, loading level is large, and have fabulous oilness, mobility, dispersiveness and Organic, improve the wear resistance of tubing.
Embodiment one
Improve a production formula for PVC inwall planeness, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 part, stablizer: 4 parts, activated Calcium carbonate: 15 parts, titanium dioxide: 2 parts, internal lubricant: 0.2 part, external lubricant: 0.6 part.
Embodiment two
A kind of production formula improving PVC inwall planeness, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1.5 parts, stablizer: 4.5 parts, activated Calcium carbonate: 17.5 parts, titanium dioxide: 3 parts, internal lubricant: 0.3 part, external lubricant: 0.7 part.
Embodiment three
Improve a production formula for PVC inwall planeness, comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 2 parts, stablizer: 5 parts, activated Calcium carbonate: 20 parts, titanium dioxide: 4 parts, internal lubricant: 0.4 part, external lubricant: 0.8 part.
Test
By a kind of production formula and prior art formula improving PVC inwall planeness of embodiment one to three, take by each constituent mass ratio of requirement separately, and the PVC of same size is produced through identical PVC production technique, in each example and prior art formula produce tubing in, the tubing choosing some amount is one group, totally four groups, adopt the test of testing flatness instrument and record data, then these four groups of tubing are placed in same flowing water environment, containing certain density particulate matter in flowing water, take out after same time, ultrasonic thickness indicator is adopted to carry out pipeline wall thickness test along tubing circumference, and record.
By test data comparative analysis, the PVC that a kind of production formula improving PVC inwall planeness of embodiment one to three is produced before the test, the surfaces externally and internally of the PVC that the surfaces externally and internally planeness mean value of three groups of tubing is produced compared with prior art formula all wants high, test data comparative analysis after test finds, the PVC abrasion loss that the pipeline wall thickness abrasion loss of the PVC that a kind of production formula improving PVC inwall planeness of embodiment one to three is produced is produced compared with prior art formula is little, and pipeline wall thickness thickness is more even, and there is more serious spot corrosion in the PVC surface that prior art formula is produced, wear resistance, planeness is lower.A kind of production formula improving PVC inwall planeness provided by the invention, greatly improves the wear resistance of PVC, improves the planeness of tube surfaces, improve the quality of production of PVC, in addition, formula nontoxic pollution-free, improves environmental-protecting performance and the security of tubing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is improved the production formula of PVC inwall planeness, it is characterized in that: comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 ~ 2 part, stablizer: 4 ~ 5 parts, activated Calcium carbonate: 15 ~ 20 parts, titanium dioxide: 2 ~ 4 parts, internal lubricant: 0.2 ~ 0.4 part, external lubricant: 0.6 ~ 0.8 part.
2. a kind of production formula improving PVC inwall planeness as claimed in claim 1, it is characterized in that: comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1 part, stablizer: 4 parts, activated Calcium carbonate: 15 parts, titanium dioxide: 2 parts, internal lubricant: 0.2 part, external lubricant: 0.6 part.
3. a kind of production formula improving PVC inwall planeness as claimed in claim 1, it is characterized in that: comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 1.5 parts, stablizer: 4.5 parts, activated Calcium carbonate: 17.5 parts, titanium dioxide: 3 parts, internal lubricant: 0.3 part, external lubricant: 0.7 part.
4. a kind of production formula improving PVC inwall planeness as claimed in claim 1, it is characterized in that: comprise following component and the mass ratio of each component is: polyvinyl chloride resin: 100 parts, Si modification processing aid: 2 parts, stablizer: 5 parts, activated Calcium carbonate: 20 parts, titanium dioxide: 4 parts, internal lubricant: 0.4 part, external lubricant: 0.8 part.
5. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described polyvinyl chloride resin is SG5 type polyvinyl chloride resin.
6. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described Si modification processing aid is the organosilicon processing aid of high-polymerization degree parent PVC, by the organosilicon polymer of the ultra-high molar mass of high-content and the mixture of fine solid meal, median size≤0.1 μm of fine solid meal.
7. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described stablizer adopts the rare earth PVC stabilizer efficient, nontoxic, synergetic property is good.
8. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described activated Calcium carbonate adopts the super fine calcium carbonate of low oil-absorption(number), calcium carbonate powder median size≤0.02 μm, oil-absorption(number) DOP is 20 ~ 22.
9. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described titanium dioxide is Rutile type Titanium Dioxide.
10. as a kind of production formula improving PVC inwall planeness in Claims 1-4 as described in any one, it is characterized in that: described internal lubricant is stearic acid, stearic acid butyl ester, glyceryl monostearate, one or more combination of stearyl alcohol, and described external lubricant is macromolecular solid paraffin body, metallic soap, stearic one or more combination.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666372.2A CN105255042A (en) | 2015-10-15 | 2015-10-15 | Production formula for improving flatness of inner wall of PVC (polyvinyl chloride) pipe |
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| CN201510666372.2A CN105255042A (en) | 2015-10-15 | 2015-10-15 | Production formula for improving flatness of inner wall of PVC (polyvinyl chloride) pipe |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059465A (en) * | 2012-12-25 | 2013-04-24 | 东莞市祺龙电业有限公司 | High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof |
| CN103937120A (en) * | 2014-02-26 | 2014-07-23 | 昆山旌淳五金塑胶制品有限公司 | PVC edge sealing material and preparation method thereof |
| CN104109312A (en) * | 2014-07-09 | 2014-10-22 | 宁国市东兴实业有限公司 | PVC (polyvinyl chloride) double-wall corrugated pipe and preparation method thereof |
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2015
- 2015-10-15 CN CN201510666372.2A patent/CN105255042A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103059465A (en) * | 2012-12-25 | 2013-04-24 | 东莞市祺龙电业有限公司 | High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof |
| CN103937120A (en) * | 2014-02-26 | 2014-07-23 | 昆山旌淳五金塑胶制品有限公司 | PVC edge sealing material and preparation method thereof |
| CN104109312A (en) * | 2014-07-09 | 2014-10-22 | 宁国市东兴实业有限公司 | PVC (polyvinyl chloride) double-wall corrugated pipe and preparation method thereof |
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Application publication date: 20160120 |
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