CN101693778B - PVC/ABS blend and pipe thereof - Google Patents

PVC/ABS blend and pipe thereof Download PDF

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Publication number
CN101693778B
CN101693778B CN2009101930238A CN200910193023A CN101693778B CN 101693778 B CN101693778 B CN 101693778B CN 2009101930238 A CN2009101930238 A CN 2009101930238A CN 200910193023 A CN200910193023 A CN 200910193023A CN 101693778 B CN101693778 B CN 101693778B
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parts
pvc
abs
mixed
heat
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CN101693778A (en
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张雪
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Hunan Liansu science and Technology Co Ltd
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Guangdong Liansu Technology Industrial Co Ltd
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Abstract

The invention discloses a PVC/ABS blend and a pipe thereof. The PVC/ABS blend consists of the following components in parts by weight: 100 parts of PVC resin, 20 to 80 parts of ABS granules, 1 to 3 parts of stability agent, 1 to 2 parts of lubricant, 0 to 5 parts of impact modifier, 0 to 10 parts of compatibility agent, 0 to 1 part of antioxidant, 0 to 1 part of ultraviolet absorber, 0 to 3 parts of flame retardant, and 1 to 3 parts of processing aid. Each component in the PVC/ABS blend is subjected to high-speed heating mixing and then cooled-mixed slowly, and finally the PVC/ABS pipe is obtained by granulation extrusion and forming. By optimizing and selecting the components and dosage required by the PVC/ABS blend, the PVC/ABS pipe which has the advantages of good impact resistance, good flame retardant and anti-aging property, and excellent mechanical property is prepared.

Description

A kind of PVC/ABS blend and tubing thereof
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of PVC/ABS blend and tubing thereof.
Background technology
SE (PVC) has advantages such as good electrical insulativity, good flame-retardance, difficult combustion, wear-resisting and resistance to chemical attack; And low price; Can be to the adjustment of different purposes its fill a prescription and reach customer requirements, so use range is extensive, is one of present the most widely used general purpose material.Yet PVC also exists shock strength low, poor processability, problem such as thermotolerance is not enough.
ABS is vinyl cyanide, divinyl and cinnamic terpolymer, and A represents vinyl cyanide, and B represents divinyl, and S represents vinylbenzene.ABS resin has good processing characteristics, and shock strength is high, but has shortcoming such as inflammable, loss of properties on aging, and most importantly the ABS price is relatively costly, so the use of ABS does not have PVC extensive.
The PVC/ABS blend is a kind of important modified plastics; Because ABS has shock resistance height, good heat resistance, dimensional stabilizing and is easy to the good characteristics that PVC was short of such as machine-shaping; The blending and modifying that ABS is used for PVC; Can not only improve the processing characteristics of PVC, and can also significantly improve the mechanical property of PVC, make the shock strength of PVC/ABS blend surpass pure ABS and PVC.
Though the PVC/ABS blend is because of having high impulse strength, thermostability, flame retardant resistance, processing characteristics and comparatively ideal cost performance preferably; Be widely used in injecting, extrude, in the plastics molding process such as calendering; But itself there is defectives such as " flexural strength are not too high, heat-drawn wire is low, outward appearance is not ideal enough, processing fluidity poor " in existing P VC/ABS blend; Therefore also limited its development and application, do not seen as yet at present that like the technology that adopts the PVC/ABS blend to produce tubing relevant report is arranged.
Summary of the invention
The objective of the invention is to the deficiency that exists in the prior art, provide that a kind of anti-impact is good, fire-retardant, stability to aging is good, mechanical property is excellent, can be used for producing the PVC/ABS blend of tubing.
Another object of the present invention is to provide by above-mentioned PVC/ABS blend and prepares gained tubing.
Above-mentioned purpose of the present invention is achieved through following scheme:
A kind of PVC/ABS blend, said composition is got by each component blend of following parts by weight:
100 parts of polyvinyl chloride resins;
20~80 parts of ABS pellets;
1~3 part of stablizer;
1~2 part of lubricant;
0~5 part of impact modifier;
0~10 part of compatilizer;
0~1 part in oxidation inhibitor;
0~1 part of UV light absorber;
0~3 part of fire retardant;
1~3 part of processing aid.
In the above-mentioned PVC/ABS blend, stablizer is selected non-toxic stabilizer for use, like organotin stabilizer or calcium zinc class stablizer; Said organotin stabilizer has efficiently, high transparent, excellent heat resistance, and the characteristics of anti-sulfide staining, and the present invention can select the organotin stabilizer used always, like the laurate class, and maleic acid ester class or thio-alcohol; Said calcium zinc class stablizer has good thermostability, light stability, the transparency and tinting strength, and the present invention can select any calcium zinc class stablizer commonly used.
In the above-mentioned PVC/ABS blend, the effect of lubricant be to reduce in the PVC course of processing between the molecule and and processing units between friction, thereby improve resin flow property, improve the transparency and the smooth finish of goods; Lubricant of the present invention is selected a kind of in polyethylene wax, OPE or the paraffin or more than one mixture.
In the above-mentioned PVC/ABS blend, impact modifier is selected any core-shell polymer, like ACR class (esters of acrylic acid), MBS class (TEB 3K, divinyl and cinnamic terpolymer) or CPE (chlorinatedpolyethylene).
In the above-mentioned PVC/ABS blend, the effect of compatilizer is by intermolecular linkage force, obtains stable blend, and compatilizer of the present invention is chlorinatedpolyethylene (CPE) or SAN etc., and said SAN is vinylbenzene (S)-vinyl cyanide (A) multipolymer, is called for short SAN.
In the above-mentioned PVC/ABS blend, oxidation inhibitor is antioxidant 1076, antioxidant 1010, anti-oxidant DLTP, oxidation inhibitor DSTP, oxidation inhibitor ODP or dihydroxyphenyl propane.
In the above-mentioned PVC/ABS blend, UV light absorber is UV531, UV328 or UV571 etc.
In the above-mentioned PVC/ABS blend, fire retardant is Antimony Trioxide: 99.5Min (Sb 2O 3) or clorafin.
In the above-mentioned PVC/ABS blend, processing aid can be selected acrylic ester compound, like processing aid PA20, processing aid PA41 or processing aid K400P etc. commonly used.
According to the prescription of above-mentioned PVC/ABS blend, adopt high-speed mixer (heat is mixed machine) to mix each component in the blend, enter cooling in the low speed mixer (cold mixer) then, last granulation extrusion moulding obtains PVC/ABS tubing of the present invention.
In the above-mentioned PVC/ABS preparation of pipes process, the conventional parameter when the mixed low speed refrigerative condition of heat can select those skilled in the art to carry out this operation at a high speed all can be realized the present invention; As can each component in the polyvinyl chloride transparent compound be mixed machine through heat earlier and carry out the mixed processing of high speed heat; Heat is mixed to 120~130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 40~45 ℃ of dischargings; In forcing machine, carry out granulation, the extrusion moulding again of gained pellet.
In the above-mentioned PVC/ABS preparation of pipes process, preferred heat was mixed to 130 ℃ during heat was mixed at a high speed, preferred cold mixing to 45 ℃ of dischargings in the low speed cooling.
Compared with prior art, the present invention has following beneficial effect:
The inventor is through being optimized selection to component required in the PVC/ABS blend and consumption, prepares that anti-impact is good, fire-retardant, stability to aging is good, mechanical property is excellent, clean hygiene, easy for installation and PVC/ABS tubing that cost performance is high.
Description of drawings
Fig. 1 is a PVC/ABS preparation of pipes process flow sheet.
Embodiment
Below in conjunction with specific embodiment the present invention is done further description, but specific embodiment is not done any qualification to the present invention.
Preparation PVC/ABS tubing of the present invention in the industry, its preparation technology is as shown in Figure 1: earlier polyvinyl chloride resin powder, ABS pellet and various auxiliary agent are added heat and mix in the machine, high temperature is mediated; Through cold mixer the material that mixes is carried out cold mixed cooling then, discharge material and feed extruding pelletization in the forcing machine, the extrusion moulding of gained pellet; After the sign cutting, obtain PVC/ABS tubing finished product; Finished product is carried out quality inspection, and specification product are the packing warehouse-in just, and underproof finished product is scrapped fragmentation.
Embodiment 1
The blend of the PVC/ABS of present embodiment, its each component and parts by weight thereof are as follows:
100 parts of polyvinyl chloride resins;
60 parts of ABS pellets;
3 parts of impact modifier MBSs;
1 part of organotin T-178A;
0.4 part of lubricant stearic acid calcium;
10 parts of compatilizer chlorinatedpolyethylenees;
0.5 part of antioxidant 1010;
0.3 part of UV light absorber UV531;
2 parts of fire retardant clorafins;
0.5 part of processing aid PA-40.
Each component in the above-mentioned polyvinyl chloride transparent compound is mixed machine through heat earlier carry out the mixed processing of high speed heat; Heat is mixed to 130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 45 ℃ of dischargings; In forcing machine, carry out granulation; The extrusion moulding again of gained pellet is carried out various salient features tests to the tubing that obtains, and test result is as shown in table 1.
Embodiment 2
The blend of the PVC/ABS of present embodiment, its each component and parts by weight thereof are as follows:
100 parts of polyvinyl chloride resins;
80 parts of ABS pellets;
3 parts of impact modifier ACR;
0.8 part of organotin T-178A;
0.3 part of lubricant stearic acid calcium;
10 parts of compatilizer SAN (styrene-acrylonitrile copolymer);
0.5 part of antioxidant 1010;
0.3 part of UV light absorber UV531;
2 parts of fire retardant clorafins;
0.5 part of processing aid K400P.
Each component in the above-mentioned polyvinyl chloride transparent compound is mixed machine through heat earlier carry out the mixed processing of high speed heat; Heat is mixed to 130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 45 ℃ of dischargings; In forcing machine, carry out granulation; The extrusion moulding again of gained pellet is carried out various salient features tests to the tubing that obtains, and test result is as shown in table 1.
Embodiment 3
100 parts of polyvinyl chloride resins;
40 parts of ABS pellets;
3 parts of impact modifier ACR;
1 part of organotin T-178A;
0.5 part of lubricant stearic acid calcium;
8 parts of compatilizer SAN (styrene-acrylonitrile copolymer);
0.5 part of antioxidant 1010;
0.3 part of UV light absorber UV531;
2 parts of fire retardant clorafins;
0.5 part of other processing aids K400P.
Each component in the above-mentioned polyvinyl chloride transparent compound is mixed machine through heat earlier carry out the mixed processing of high speed heat; Heat is mixed to 130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 45 ℃ of dischargings; In forcing machine, carry out granulation; The extrusion moulding again of gained pellet is carried out various salient features tests to the tubing that obtains, and test result is as shown in table 1.
Embodiment 4
100 parts of polyvinyl chloride resins;
50 parts of ABS pellets;
3 parts of impact modifier MBSs;
1 part of organotin T-178A;
0.3 part of lubricant stearic acid calcium;
10 parts of Compatibilizer C PE chlorinatedpolyethylenees;
0.5 part of antioxidant 1010;
0.3 part of UV light absorber UV571;
Fire retardant Antimony Trioxide: 99.5Min (Sb 2O 3) 2 parts;
0.5 part of other processing aids K400P.
The performance of table 1 PVC/ABS tubing
Test Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Vicat softening point 84.4 85.1 84.0 84.2
Tensile strength 34.7 32.6 36.2 35.1
Elongation at break 77 69.7 102 85
Shock strength 23.96 24.2 12.6 21.5
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 with the ratio control of PVC and ABS under the condition of being fit to; Umber as phase solvent also is controlled under the condition of being fit to, and 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, stability to aging is good, mechanical property is excellent, health and easy for installation, has overcome pvc pipe and has impacted low and the not good enough shortcoming of ABS pipe flame retardant properties.

Claims (1)

1. PVC/ABS tubing, said composition is got by each component blend of following parts by weight:
100 parts of polyvinyl chloride resins;
60 parts of ABS pellets;
3 parts of impact modifier MBSs;
1 part of organotin T-178A;
0.4 part of lubricant stearic acid calcium;
10 parts of compatilizer chlorinatedpolyethylenees;
0.5 part of antioxidant 1010;
0.3 part of UV light absorber UV531;
2 parts of fire retardant clorafins;
0.5 part of processing aid PA-40;
Each component in the above-mentioned polyvinyl chloride transparent compound is mixed machine through heat earlier carry out the mixed processing of high speed heat; Heat is mixed to 130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 45 ℃ of dischargings; In forcing machine, carry out granulation, the extrusion moulding again of gained pellet;
Or
100 parts of polyvinyl chloride resins;
80 parts of ABS pellets;
3 parts of impact modifier ACR;
0.8 part of organotin T-178A;
0.3 part of lubricant stearic acid calcium;
10 parts of compatilizer SAN styrene-acrylonitrile copolymers;
101 0.5 parts in oxidation inhibitor;
0.3 part of UV light absorber UV531;
2 parts of fire retardant clorafins;
0.5 part of processing aid K400P;
Each component in the above-mentioned polyvinyl chloride transparent compound is mixed machine through heat earlier carry out the mixed processing of high speed heat; Heat is mixed to 130 ℃, enters then in the cold mixer material that mixes is cooled off, cold mixing to 45 ℃ of dischargings; In forcing machine, carry out granulation, the extrusion moulding again of gained pellet.
CN2009101930238A 2009-10-13 2009-10-13 PVC/ABS blend and pipe thereof Active CN101693778B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN101693778A CN101693778A (en) 2010-04-14
CN101693778B true CN101693778B (en) 2012-02-08

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* Cited by examiner, † Cited by third party
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CN101857707B (en) * 2010-06-29 2011-11-23 上海大学 Environmental-protection type PVC/ABS plastic alloy material and preparation method thereof
CN102477206B (en) * 2010-11-29 2015-05-13 合肥杰事杰新材料股份有限公司 Flame retardant and antistatic ABS/PVC alloy material, and preparation method thereof
CN103387718A (en) * 2012-05-08 2013-11-13 合肥杰事杰新材料股份有限公司 PVC/ABS alloy and preparation method thereof
CN102911455B (en) * 2012-09-24 2015-04-15 冠益实业股份有限公司 PVC/MBS/ACR (Polyvinyl chloride/methyl methacrylate butadiene styrene copolymer/methyl methacrylate-acrylate copolymer) tubing with high impact resistance and preparation method thereof
CN102911451B (en) * 2012-09-24 2015-04-15 冠益实业股份有限公司 High-impact PVC (polyvinyl chloride)/ABS (poly(acrylonitrile butadiene styrene))/alpha-SAN(alpha-styrene acrylonitrile copolymer) tubing and preparation method thereof
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Patentee after: Hunan Liansu science and Technology Co Ltd

Address before: 528300 Lian Su industrial village, Longjiang section, Longzhou Road, Shunde District, Foshan, Guangdong

Patentee before: Liansu Science & Technology Industrial Co., Ltd., Guangdong Prov.

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Address before: 410100 Hunan Changsha Administration for Industry and Commerce Ningxiang economic and Technological Development Zone Branch

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