CN102766302A - Formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride and pipe preparation method - Google Patents
Formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride and pipe preparation method Download PDFInfo
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- CN102766302A CN102766302A CN2012102860446A CN201210286044A CN102766302A CN 102766302 A CN102766302 A CN 102766302A CN 2012102860446 A CN2012102860446 A CN 2012102860446A CN 201210286044 A CN201210286044 A CN 201210286044A CN 102766302 A CN102766302 A CN 102766302A
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Abstract
The invention relates to a formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride (C-PVC) and a pipe preparation method. 58-68 parts of chlorinated polyvinyl chloride resin, 2-6 parts of compound stabilizer, 3-8 parts of filler, 1-2 parts of lubricant, 1 part of flame retardant, 4-6 parts of processing agent, 15-20 parts of modified heat-resisting ABS and 0.5-1 part of plasticizer are mixed at high speed, cooled and stirred at low speed and then granulated and extruded. The product has the advantages of being firm, high-temperature resisting, long in service life, non-toxic, free of corrosion caused by permeated oxygen, environment-friendly, hygienic and the like.
Description
Technical field:
The invention belongs to the compsn of macromolecular compound; Be specifically related to a kind of prescription and preparation of pipes method that is used for plastic pipe ABS modified chlorinated polyvinyl chloride (C-PVC), particularly relate to a kind of prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride (C-PVC).
Background technology:
The melt viscosity of C-PVC itself is lower; And ABS has excellent physical and mechanical properties, and fabulous low-temperature impact resistance, solidity to corrosion, dimensional stability, chemical resistant properties are arranged, and melt temperature and SP and C-PVC are approaching basically; Be easy to moulding and processing, and the heat-drawn wire of ABS is higher.For overcoming the shortcoming of C-PVC impact property difference, the present invention selects the anti-impact modifier of ABS as C-PVC for use, has improved the shock resistance of ABS modification C-PVC plastic pipe.
Summary of the invention:
The purpose of this invention is to provide a kind of prescription that is used for the improved hard chlorinated polyvinyl chloride of plastic pipe (C-PVC); The shock resistance of solution prior art products is poor, melt viscosity is low; Plasticizing difficulty in the course of processing, production cost is high, problems such as construction trouble.
Technical scheme of the present invention is following:
A kind of prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride (C-PVC) comprises: powder raw material, properties-correcting agent and softening agent; Powder raw material comprises auxiliary material, bond material chlorinated polyvinyl chloride resin and processing aid.
Auxiliary material comprises one package stabilizer, weighting agent, lubricant, fire retardant in the powder raw material of the present invention.
One package stabilizer comprises thermo-stabilizer and calcium zinc stabilizer in the auxiliary material of the present invention; Thermo-stabilizer preferably sulfuric acid antimony.
The preferred phosphorous acid ester of fire retardant in the auxiliary material of the present invention.
Lubricant of the present invention is paraffin and PE wax.
Weighting agent of the present invention is a fine particle calcium carbonate.
Processing aid of the present invention is PA-21.
Modified additive of the present invention is heat resistant type ABS.
The preferred epoxy soybean oil of softening agent of the present invention.
In described prescription, the weight of powder raw material chlorinated polyvinyl chloride (C-PVC) resin is 58-68 part, one package stabilizer 2-6 part; Weighting agent 3-8 part, lubricant 1-2 part, fire retardant is 1 part; Processing aid is 4-6 part, modified additive 15-20, softening agent 0.5-1 part.
One, the preparation method of ABS modified hard chlorinated polyvinyl chloride pipe material of the present invention:
Taking by weighing required starting material by prescription, through mixed at high speed and two processes of low speed cooling and stirring, is extruding pelletization then.The main technique flow process is following:
By prescription batching → mixed at high speed → low speed cooling and stirring → extruding pelletization → put in storage at X-ray inspection X → packing.
C-PVC resin and epoxy soybean oil with formula ratio adds in the high-speed mixer earlier; Mix separately; And then stir according to other auxiliary material thermo-stabilizer of formula ratio input, calcium zinc stabilizer, fire retardant, properties-correcting agent, processing aid, weighting agent, lubricant successively; Make its uniform mixing, send into tablets press again and carry out sending into extruder for shaping after the granulation.Usually the mixed at high speed temperature should be controlled at 115-125 ℃, can not be too high, otherwise mix out the material of jaundice easily, in extrusion, cause decomposition or the appearance of the material phenomenon of " crossing plasticizing ".The temperature of low speed cooling and stirring is controlled at 40-50 ℃, and is also unsuitable too high, otherwise the material that mixes out can be because of differing too big relation with room temperature, makes the airborne moisture of material hyperabsorption and influences the performance of goods.
In the prescription of above-mentioned hard chlorinated polyvinyl chloride (C-PVC) plastics tubing material, described powder is chlorinated polyvinyl chloride resin, thermo-stabilizer and calcium zinc stabilizer; Processing aid is PA-21; Described fire retardant is a phosphorous acid ester; Described properties-correcting agent is ABS resin.
Two, the preparation method of ABS modified hard chlorinated polyvinyl chloride pipe material of the present invention:
The main technique flow process is following:
Raw material is dropped into feeder → heat → plastify → extrusion moulding → cooling → deburring arrangement → put in storage in X-ray inspection X → packing.
Plasticization temperature: feeding section 185-195 ℃; Compression section 188-198 ℃; Homogenizing zone 190-200 ℃; Nozzle 190-195 ℃.
The expressing technique emphasis of C-PVC pipe resin is a technological temperature, and it will directly influence the plasticizing quality of tubing.The general technology temperature can be because of the difference of forcing machine plasticizing capacity, and very big difference is arranged, and can reach 20-30 ℃ sometimes.In theory, the processing temperature of C-PVC material is higher than PVC, but in fact; According to our processing experience for many years; The processing temperature of C-PVC material is lower 5-8 ℃ than PVC, and this is because the melt viscosity of C-PVC is bigger than PVC, will produce a large amount of heat of friction between the fused molecule; If at this time forcing machine offers its too much heat again, be easy to cause the decomposition of material.
In the setting of technological temperature, should keep the mild of curve as far as possible, this helps the plasticizing quality of C-PVC resin, the up and down plasticizing that is unfavorable for tubing of curve, general curve is relatively more suitable for " U " type.The control of whole technological temperature can be divided into three parts substantially: machine barrel, merging core and mould.Barrel zone temperature successively decreases since a district successively; The merging core temperature is more lower slightly than barrel zone temperature again; In the temperature of mould is set, it should be noted that the temperature of mouthful mould and the temperature of core, the temperature of mouthful mould should be hanged down about 10 ℃ than the heating zone temperature of machine barrel; Otherwise can influence vertical relaxation shrinkage of tubing; Tubing to vertical relaxation shrinkage no requirement (NR) is then not limited, and the core heating can promptly be broken off after tubing normally involves, and the heat of C-PVC melt and the heat that friction is produced to core can be kept the temperature of core rod fully.
The prescription of hard chlorinated polyvinyl chloride of the present invention (C-PVC) plastics tubing material is to the modification in addition of traditional chlorinated polyvinyl chloride plastic raw material; It is firm, high temperature resistant that its product is had, long service life, nontoxic, no oxygen flow corrosion; Advantages such as environmentally-friendly sanitary, specific as follows:
The beneficial effect of the invention:
ABS modified hard chlorinated polyvinyl chloride of the present invention (C-PVC) plastic pipe is to the modification in addition of traditional chlorinated polyvinyl chloride plastic raw material; It is firm, high temperature resistant that its product is had, long service life, nontoxic, no oxygen flow corrosion; Advantages such as environmentally-friendly sanitary, specific as follows:
1, firm, high temperature resistant, long service life.The present invention's C-PVC tubing of producing of filling a prescription is firmer than PP-R, PE-X tubing; Under same pressure; ABS modified hard C-PVC tubing can use littler caliber and reach and PP-R, discharge that PE-X tubing is identical, thereby can save Master Cost and settling time.Compare with other thermoplasticss, ABS modified hard C-PVC tubing has remarkable mechanical property under differing temps, is suitable for the occasion of pressurized, and use temperature can be up to 93 ° of C, and the life-span can reach 50 years.Thermal expansivity is lower than other plastics, and pipe expands during Nei Tongre very little, the serpentine bend when being difficult for causing high-temperature heating and produce potential safety hazard.
2, easy for installation, save cost.Fill a prescription method of attachment and the pvc pipe material of the ABS modified hard C-PVC tubing produced of the present invention is quite similar, and the most commonly used and the most simple method of attachment are solvent welding.Other is threaded in addition, the flange link is connected with welding rod.
3, nontoxic, no oxygen flow corrosion, environmentally-friendly sanitary.The ABS modification C-PVC tubing that the present invention fills a prescription and produces, no oxygen flow corrosion does not receive the influence of chlorine in the water, crackle and seepage can not occur, and inner-walls of duct is smooth, and bacterium is difficult for growing.
4, has excellent flame-retardant performance.The present invention's ABS modification C-PVC tubing of producing of filling a prescription has excellent flame-retardant performance, and limiting oxygen index(LOI) is 60, thereby in air, can not burn, and does not have flame spread, and low smog generates or the like characteristic.
5, the present invention fills a prescription and has significant synergistic effect between definite stabilising system.One package stabilizer S-501, epoxy soybean oil, fire retardant phosphorous acid ester TPP all have significant synergism to thermo-stabilizer antimony trisulfate ST-103.
6, the present invention fills a prescription and adopts nontoxicity stabiliser system and other processing aid, and its product price performance compares, wholesomeness is all better, can satisfy and produce and application requiring.
7, the present invention fills a prescription and has effectively improved the resistance to impact shock of C-PVC tubing, 0 ℃ of surging force that can stand 1kg weight/2m height down.
Product of the present invention can be widely used in developing geothermal energy resources, carries hot spring hot water and other domestic hot-water, also is applied to chemical industry, like chlorine industry, metallurgy industry, petroleum industry, paper industry etc.In the present invention, owing to used modifier A BS, thereby reduced the consumption of chlorinated polyvinyl chloride, raw materials cost is reduced greatly.Because adopt advanced technology to produce, water-saving and electricity-saving makes production cost significantly reduce, and is very beneficial for the promotion and application of C-PVC pipeline.
Embodiment:
To further explain of the present invention, but is not to further qualification of the present invention below in conjunction with embodiment.
The production technique of ABS modified hard polyethylene chloride plastic pipe of the present invention is, takes by weighing required starting material by prescription, through mixed at high speed and two processes of low speed cooling and stirring, is that granulation is extruded then.The main technique flow process is following:
Mix → low mixing → extruding pelletization → send into forcing machine → plasticizing → extrusion moulding → cooling → deburring to put in order → put in storage by prescription batching → height in X-ray inspection X → packing.
The technology of prescription of the present invention and manufacturing processed has following some specific embodiments:
Embodiment 1:
Earlier with in 68 parts of C-PVC resins and 1 part of adding high-speed mixer of epoxy soybean oil; Mix separately; And then drop into 2 parts of other auxiliary material thermo-stabilizers, 4 parts of calcium zinc stabilizers, 1 part of fire retardant, 15 parts of properties-correcting agent, 4 parts of processing aids, 3 parts of weighting agents, lubricant successively and stir for 2 parts; Make its uniform mixing, in tablets press, carry out dropping in the forcing machine after the granulation and extrude.Usually the mixed at high speed temperature should be controlled at 115-125 ° of C, can not be too high, otherwise mix out the material of jaundice easily, in extrusion, cause decomposition or the appearance of the material phenomenon of " crossing plasticizing ".The temperature of low speed cooling and stirring is controlled at 40-50 ℃, and is also unsuitable too high, otherwise the material that mixes out can be because of differing too big relation with room temperature, makes the airborne moisture of material hyperabsorption and influences the performance of goods.
Injection moulding plasticization temperature: feeding section 185-195 ℃; Compression section 188-198 ℃; Homogenizing zone 190-200 ℃; Nozzle 190-195 ℃.
Embodiment 2:
Earlier with in 63 parts of C-PVC resins and 0.5 part of adding high-speed mixer of epoxy soybean oil; Mix separately; And then drop into 2 parts of other auxiliary material thermo-stabilizers, 4 parts of calcium zinc stabilizers, 1 part of fire retardant, 18 parts of properties-correcting agent, 5 parts of processing aids, 5 parts of weighting agents, lubricant successively and stir for 1.5 parts; Make its uniform mixing, in tablets press, carry out dropping in the forcing machine after the granulation and extrude.Usually the mixed at high speed temperature should be controlled at 115-125 ℃, can not be too high, otherwise mix out the material of jaundice easily, in extrusion, cause decomposition or the appearance of the material phenomenon of " crossing plasticizing ".The temperature of low speed cooling and stirring is controlled at 40-50 ℃, and is also unsuitable too high, otherwise the material that mixes out can be because of differing too big relation with room temperature, makes the airborne moisture of material hyperabsorption and influences the performance of goods.
Injection moulding plasticization temperature: feeding section 185-198 ℃; Compression section 188-198 ℃; Homogenizing zone 190-200 ℃; Nozzle 190-195 ℃.
Embodiment 3:
Earlier with in 58 parts of C-PVC resins and 0.5 part of adding high-speed mixer of epoxy soybean oil; Mix separately; And then drop into 2 parts of other auxiliary material thermo-stabilizers, 3.5 parts of calcium zinc stabilizers, 1 part of fire retardant, 20 parts of properties-correcting agent, 6 parts of processing aids, 8 parts of weighting agents, lubricant successively and stir for 1 part; Make it that mixing all arranged, carry out in the tablets press dropping in the forcing machine after the granulation and extrude.Usually the mixed at high speed temperature should be controlled at 115-125 ℃, can not be too high, otherwise mix out the material of jaundice easily, in extrusion, cause decomposition or the appearance of the material phenomenon of " crossing plasticizing ".The temperature of low speed cooling and stirring is controlled at 40-50 ℃, and is also unsuitable too high, otherwise the material that mixes out can be because of differing too big relation with room temperature, makes the airborne moisture of material hyperabsorption and influences the performance of goods.
Injection moulding plasticization temperature: feeding section 185-198 ℃; Compression section 188-198 ℃; Homogenizing zone 190-200 ℃; Nozzle 190-195 ℃.
Claims (8)
1. a prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride comprises: powder raw material, properties-correcting agent heat resistant type ABS and softening agent; Powder raw material comprises auxiliary material, bond material chlorinated polyvinyl chloride resin and processing aid; Auxiliary material comprises one package stabilizer, weighting agent, lubricant, fire retardant in the powder raw material; It is characterized in that: by weight, chlorinated polyvinyl chloride resin is 58-68 part, one package stabilizer 2-6 part, and weighting agent 3-8 part, lubricant 1-2 part, fire retardant is 1 part, processing aid is 4-6 part, modified heat resistant type ABS15-20 part, softening agent 0.5-1 part.
2. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described one package stabilizer is thermo-stabilizer antimony trisulfate and calcium-zinc composite stabilizing agent.
3. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described fire retardant is a phosphorous acid ester.
4. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described processing aid is PA-21.
5. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described softening agent is an epoxy soybean oil.
6. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described weighting agent is a fine particle calcium carbonate.
7. according to the prescription that is used for plastic pipe ABS modified hard chlorinated polyvinyl chloride of claim 1, it is characterized in that described lubricant is paraffin and PE wax.
8. the preparation method of an ABS modified hard chlorinated polyvinyl chloride plastic tubing; Prescription according to the arbitrary claim of claim 1-7; C-PVC resin and epoxy soybean oil with formula ratio adds in the high-speed mixer earlier, and temperature is controlled at 115-125 ℃, mixes separately at a high speed; And then drop into other auxiliary material thermo-stabilizer, calcium zinc stabilizer, fire retardant, properties-correcting agent, processing aid, weighting agent, lubricant according to prescription successively; Temperature is controlled at 40-50 ℃ and carries out stirring at low speed; Make its uniform mixing; Drop into tablets press again and carry out granulation, send into the injection moulding machine injection moulding then, plasticization temperature: heating zone 185-195 ℃; Compression section 188-198 ℃; Homogenizing zone 190-200 ℃; Nozzle 190-195 ℃.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102911456A (en) * | 2012-09-24 | 2013-02-06 | 冠益实业股份有限公司 | PVC (polyvinyl chloride)/ASA (acrylonitrile styrene acrylate) pipe with high impact resistance and method for preparing same |
| CN102911453A (en) * | 2012-09-24 | 2013-02-06 | 冠益实业股份有限公司 | High-impact PVC (polyvinyl chloride)/ABS (poly(acrylonitrile butadiene styrene)) tubing and preparation method thereof |
| CN102911451A (en) * | 2012-09-24 | 2013-02-06 | 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 |
| CN102911455A (en) * | 2012-09-24 | 2013-02-06 | 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 |
| CN103275429A (en) * | 2013-06-21 | 2013-09-04 | 苏州新区特氟龙塑料制品厂 | Water supply pipe manufactured by polyvinyl-chlorid material |
| CN105153569A (en) * | 2015-07-09 | 2015-12-16 | 镇江荣诚管业有限公司 | Green environmental-protection type pipe and preparation method thereof |
| CN110951196A (en) * | 2019-11-28 | 2020-04-03 | 泉州兴源新材料科技有限公司 | Corrosion-resistant and high-temperature-resistant PVC-C pipe and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911456A (en) * | 2012-09-24 | 2013-02-06 | 冠益实业股份有限公司 | PVC (polyvinyl chloride)/ASA (acrylonitrile styrene acrylate) pipe with high impact resistance and method for preparing same |
| CN102911453A (en) * | 2012-09-24 | 2013-02-06 | 冠益实业股份有限公司 | High-impact PVC (polyvinyl chloride)/ABS (poly(acrylonitrile butadiene styrene)) tubing and preparation method thereof |
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| CN102911455A (en) * | 2012-09-24 | 2013-02-06 | 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 |
| CN103275429A (en) * | 2013-06-21 | 2013-09-04 | 苏州新区特氟龙塑料制品厂 | Water supply pipe manufactured by polyvinyl-chlorid material |
| CN105153569A (en) * | 2015-07-09 | 2015-12-16 | 镇江荣诚管业有限公司 | Green environmental-protection type pipe and preparation method thereof |
| CN110951196A (en) * | 2019-11-28 | 2020-04-03 | 泉州兴源新材料科技有限公司 | Corrosion-resistant and high-temperature-resistant PVC-C pipe and preparation method thereof |
| CN110951196B (en) * | 2019-11-28 | 2021-09-10 | 泉州兴源新材料科技有限公司 | Corrosion-resistant and high-temperature-resistant PVC-C pipe and preparation method thereof |
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Application publication date: 20121107 |