CN104513437A - Flame retardant lubricant aging-resistant pipe - Google Patents
Flame retardant lubricant aging-resistant pipe Download PDFInfo
- Publication number
- CN104513437A CN104513437A CN201310450899.2A CN201310450899A CN104513437A CN 104513437 A CN104513437 A CN 104513437A CN 201310450899 A CN201310450899 A CN 201310450899A CN 104513437 A CN104513437 A CN 104513437A
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- Prior art keywords
- parts
- retardant
- fire
- lubrication
- ageing
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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
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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
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
Abstract
The invention discloses a flame retardant lubricant aging-resistant pipe, which is characterized by being obtained by blending the following components by weight: 30-40 parts of PVC resin; 15-20 parts of ABS pellet; 25-30 parts of a fluorine-containing polymer; 10-20 parts of active polyol stearate; 3-5 parts of an impact modifier MBS; 0.5-1 part of an antioxidant 101; and 2-3 parts of a flame retardant chlorinated paraffin. The pipe produced by the process does not contain carrier resin, is free of the problem of compatibility with resin, and has the characteristics of wide universality and high ''lubricating'' efficiency. Through optimization selection of the components and dosage needed by the PVC/ABS blend, the PVC/ABS pipe with the advantages of impact resilience, flame retardancy, aging resistance, excellent mechanical properties, cleanness and sanitation, convenient installation, and high cost performance can be obtained.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to the ageing-resistant tubing of a kind of fire-retardant lubrication.
Background technology
Polyvinyl chloride (PVC) has the advantages such as good electrical insulativity, good flame-retardance, difficult combustion, wear-resisting and resistance to chemical attack, and low price, its formula can be adjusted for different purposes and reach user's requirement, therefore use range is extensive, is one of current the most widely used general purpose material.But PVC also to there is shock strength low, poor processability, the problems such as thermotolerance is inadequate.
ABS is vinyl cyanide, divinyl and cinnamic terpolymer, and A represents vinyl cyanide, and B represents divinyl, and S represents vinylbenzene.ABS resin has excellent processing characteristics, and shock strength is high, but there is the shortcomings such as inflammable, loss of properties on aging, and most importantly ABS price is relatively costly, therefore ABS use do not have PVC extensive.
PVC/ABS blend is a kind of important modified plastics, due to ABS have that shock resistance is high, good heat resistance, dimensional stabilizing and be easy to the good characteristics that the PVC such as machine-shaping are short of, ABS is used for the blending and modifying of PVC, the processing characteristics of PVC can not only be improved, and the mechanical property of PVC can also be significantly improved, make the shock strength of PVC/ABS blend exceed pure ABS and PVC.
As everyone knows, utilize rotary screw that viscous polymer melt is forced through extruder barrel and enter die head, forming polymer is made to be the shape needed, then cool and be frozen into the product with general die shape, can by high molecular polymer, such as hydrocarbon polymer and polyamide melt are extruded as shaped structure.
In order to obtain lower production cost, wish with two-forty extruded polymer.Higher rate of extrusion can pass easily through raising extruder screw rotating speed and obtain.But because polymeric substrate has viscoelastic property, therefore this technology is restricted.Meanwhile, under very high rate of extrusion, unacceptable polymkeric substance thermolysis may be caused.Usually can obtain shaggy extrudate, this may cause forming undesirable pattern on the surface at extrudate, and these surface imperfection are also called melt fracture.Can avoid this problem although at high temperature extrude, can increase tooling cost, and the cooling of extrudate becomes problem, if polyene baby extrudes in the temperature close to its decomposition point, polymkeric substance will be degraded.
Therefore, those skilled in the art wish find high efficiency raising rate of extrusion and do not improve melt temperature, produce the method with the goods of smooth surface simultaneously.The change of forcing machine and die head structure can improve polymer melt flow, but these improve not always practicality or economically viable.Another kind of approach comprises and adds conventional wax-type processing aid, and it reduces bulk viscosity and improves processing characteristics in some cases, but its efficiency is limited.
In recent years, along with the expansion of polyolefine and engineering thermoplastic resin Application Areas, the research of polyolefine and engineering thermoplastic resin processing aid and product are increased increasingly.Fluoropolymer additive is improved by fluoropolymer elastomerics, and it has the ability of excellent improvement processing characteristics.Compared with conventional processing additives, as stearic acid, stearate etc., fluoropolymer additive surface energy is low, poor with resin compatible, in the resin melting course of processing, easily separate out from melt, one deck " lubrication " film is formed at the bath surface contacted with equipment, reduce clinging power and the frictional force of bath surface and equipment, reduce because reactive force is different and in causing, outer melt speed difference, thus can obviously improve " shark skin " that occur in the resin melting course of processing, melt fracture, mouth mould material deposition, the production defects such as gel, now be widely used in polyethylene, polypropylene, polyvinyl chloride, polystyrene, the tubing of the resins such as nylon, sheet material, section bar, during cables etc. are produced.
Fluoropolymer additive " lubrication " function is strong, consumption low (200 ~ 1000ppm), and fluoropolymer particle diameter is less, and it is better to disperse, and processing characteristics is also better.For giving full play to its efficient " lubrication " function, the particle diameter of processing aid fluoropolymer is generally micron order, even nano level.But find aborning, directly added to by this analog assistant when using in resin, its extremely low consumption is difficult to dispersed, and particularly when using with pellet is blended, this problem is particularly outstanding, and also there is dust pollution question in producing.
Although PVC/ABS blend is because having higher shock strength, preferably thermostability, flame retardant resistance, processing characteristics and comparatively ideal cost performance, be widely used in injecting, extrude, in the plastics molding process such as calendering, but existing PVC/ABS blend itself exists defects such as " flexural strength are not too high, heat-drawn wire is low, outward appearance is not ideal enough, processing fluidity poor ", therefore also limit its development and application.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide that one has carrier free, versatility is wide, anti-impact good, lubricity is good, fire-retardant, ageing resistance is good, can be used for the PVC/ABS blend producing tubing.The ageing-resistant tubing of this fire-retardant lubrication, is characterized in that, said composition is blended and obtain by each component of following parts by weight:
PVC resin 30-40 part;
ABS pellet 15-20 part;
Fluoropolymer 25-30 part;
Reactive polyol stearate 10-20 part;
Impact modifier MBS 3-5 part;
Oxidation inhibitor 101 0.5-1 part;
Fire retardant clorafin 2-3 part.
The ageing-resistant tubing of the fire-retardant lubrication of above-mentioned one, is characterized in that, described fluoropolymer is tetrafluoroethylene and hexafluoropropylene copolymer.
The ageing-resistant tubing of the fire-retardant lubrication of above-mentioned one, is characterized in that, described fluoropolymer particle diameter≤100 μm, vinylidene fluoride content >=50%, and weight-average molecular weight is 100,000 ~ 10,000,000.
The ageing-resistant tubing of the fire-retardant lubrication of above-mentioned one, is characterized in that, described reactive polyol stearate selects the two stearate of tetramethylolmethane and tetramethylolmethane tristearate.
The ageing-resistant tubing of the fire-retardant lubrication of above-mentioned one, is characterized in that, is solid sheet particle under described reactive polyol stearate normal temperature, fusing point 35 ~ 75 DEG C, heat decomposition temperature >250 DEG C.
Beneficial effect of the present invention is:
Containing vector resin, not there is not the compatibility problem between resin in the tubing produced by above-mentioned technique, has the advantages that versatility is wide, " lubrication " efficiency is high, and technological process is simple, and production unit is easy to get, and has stronger operability.By being in optimized selection component required in PVC/ABS blend and consumption, prepare that anti-impact is good, fire-retardant, ageing resistance is good, excellent in mechanical performance, clean hygiene, the easy for installation and PVC/ABS tubing that cost performance is high.
Embodiment
embodiment one
By the fluorine-containing processing aid PPA 2800 of commercially available 28 parts, its composition is tetrafluoroethylene and hexafluoropropylene copolymer, weight-average molecular weight 50 ~ 5,000,000, PVC resin 30 parts, the two stearate 15 parts of ABS pellet 20 parts of tetramethylolmethanes is put into homogenizer high speed and is stirred to 70 DEG C, stir about about 10 minutes, add impact modifier MBS 3 parts, 101 1 parts, oxidation inhibitor, fire retardant clorafin 3 parts of heat are mixed to 130 DEG C, react 5 minutes, the binding material mixed is added in two rod chilling press, coldly mix 45 DEG C, normal temperature is squeezed into cylinder shape tubing, vibration screening, the obtained ageing-resistant tubing of a kind of fire-retardant lubrication.
embodiment two
By the fluorine-containing processing aid PPA 2800 of commercially available 30 parts, its composition is tetrafluoroethylene and hexafluoropropylene copolymer, weight-average molecular weight 50 ~ 5,000,000, PVC resin 30 parts, the two stearate 11 parts of ABS pellet 20 parts of tetramethylolmethanes is put into homogenizer high speed and is stirred to 80 DEG C, stir about about 10 minutes, add impact modifier MBS 5 parts, 101 1 parts, oxidation inhibitor, fire retardant clorafin 3 parts of heat are mixed to 130 DEG C, react 5 minutes, the binding material mixed is added in two rod chilling press, coldly mix 45 DEG C, normal temperature is squeezed into cylinder shape tubing, vibration screening, the obtained ageing-resistant tubing of a kind of fire-retardant lubrication.
Carry out various salient features test to the tubing obtained, test result is as shown in table 1.
Table one
Can be found out by table 1, after adding the present embodiment polymkeric substance, the physical and mechanical properties of the ageing-resistant tubing of this fire-retardant lubrication is improved.And with adds merely compared with fluoropolymer, the ageing-resistant tubing of the fire-retardant lubrication of one of the present invention add to tubing produce in after, production efficiency raising is larger; Transmittance and fracture productivity improve larger, and mist degree declines more.
Find out from table 1, when the ratio of ABS strengthens, shock strength can improve, but the tensile strength of relative tubing and elongation at break can reduce, and by the ratio control of PVC and ABS under the proper conditions, number as phase solvent also controls under the proper conditions, can find out that the over-all properties of this tubing will be improved.
Gained PVC/ABS tubing anti-impact of the present invention is good, fire-retardant, ageing resistance is good, excellent in mechanical performance, health and easy for installation, overcomes PVC pipe and impacts the too low and not good enough shortcoming of ABS pipe flame retardant properties.
Claims (5)
1. the ageing-resistant tubing of fire-retardant lubrication, is characterized in that, said composition is blended and obtain by each component of following parts by weight:
PVC resin 30-40 part;
ABS pellet 15-20 part;
Fluoropolymer 25-30 part;
Reactive polyol stearate 10-20 part;
Impact modifier MBS 3-5 part;
Oxidation inhibitor 101 0.5-1 part;
Fire retardant clorafin 2-3 part.
2. the ageing-resistant tubing of the fire-retardant lubrication of one according to claim 1, is characterized in that, described fluoropolymer is tetrafluoroethylene and hexafluoropropylene copolymer.
3. the ageing-resistant tubing of the fire-retardant lubrication of one according to claim 1 and 2, is characterized in that, described fluoropolymer particle diameter≤100 μm, vinylidene fluoride content >=50%, and weight-average molecular weight is 100,000 ~ 10,000,000.
4. the ageing-resistant tubing of the fire-retardant lubrication of one according to claim 1, is characterized in that, described reactive polyol stearate selects the two stearate of tetramethylolmethane and tetramethylolmethane tristearate.
5. the ageing-resistant tubing of the fire-retardant lubrication of the one according to claim 1 or 4, is characterized in that, is solid sheet particle under described reactive polyol stearate normal temperature, fusing point 35 ~ 75 DEG C, heat decomposition temperature >250 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450899.2A CN104513437A (en) | 2013-09-29 | 2013-09-29 | Flame retardant lubricant aging-resistant pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450899.2A CN104513437A (en) | 2013-09-29 | 2013-09-29 | Flame retardant lubricant aging-resistant pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104513437A true CN104513437A (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450899.2A Pending CN104513437A (en) | 2013-09-29 | 2013-09-29 | Flame retardant lubricant aging-resistant pipe |
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| Country | Link |
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| CN (1) | CN104513437A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910580A (en) * | 2015-06-13 | 2015-09-16 | 陈新棠 | Plastic pipe |
| CN107325428A (en) * | 2016-04-28 | 2017-11-07 | 浙江光通塑业有限公司 | A kind of PVC and preparation method thereof |
-
2013
- 2013-09-29 CN CN201310450899.2A patent/CN104513437A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104910580A (en) * | 2015-06-13 | 2015-09-16 | 陈新棠 | Plastic pipe |
| CN107325428A (en) * | 2016-04-28 | 2017-11-07 | 浙江光通塑业有限公司 | A kind of PVC and preparation method thereof |
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Application publication date: 20150415 |