CN105038036A - Impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply - Google Patents
Impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply Download PDFInfo
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- CN105038036A CN105038036A CN201510536535.5A CN201510536535A CN105038036A CN 105038036 A CN105038036 A CN 105038036A CN 201510536535 A CN201510536535 A CN 201510536535A CN 105038036 A CN105038036 A CN 105038036A
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- polyvinyl chloride
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- feedwater
- compression
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Abstract
The invention provides an impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply. The pipe is formed by virtue of mixing and extrusion molding of the following raw materials in parts by weight: 80-85 parts of polyvinyl chloride resin, 5-10 parts of a filling agent, 3-5 parts of an environment-friendly compound stabilizer, 0.5-3 parts of a processing aid, 0.5-8 parts of an impact modifier, 0.1-1.0 part of a lubricant and 3-5 parts of a weatherproof agent. The invention can provide a raw material formula of the impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply. Under the blending modification action of the raw materials including the processing aid, the impact modifier and the like and the polyvinyl chloride resin, the strength of a PVC-O pipe is improved, and the risk of hydraulic fracturing of the pipe is reduced.
Description
Technical field
The present invention relates to Production of Plastic Building Materials field, be specifically related to a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing.
Background technology
PVC belongs to the macromolecular material of non-crystalline type, because the polarity chlorine element in molecule exists, therefore PVC possesses higher rigidity, between second-order transition temperature and melt temperature, under external force, molecule segment changes from lack of alignment to ordered arrangement, and material is anisotropy by isotropic transition.Common PVC-U water-feeding pipes only carries out axial orientation under tractive force effect, therefore the minimum desired strength MRS of common PVC-U water-feeding pipes is 25MPa, and PVC-O tubing is owing to carrying out biaxial stretch-formed orientation, tubing axially all carries out oriented crystalline with radial direction, and therefore the MRS of PVC-O water-feeding pipes is the highest can be 50MPa.Common PVC-U water-feeding pipes 50 years safety coefficient are 2.0-2.5, and 50 of PVC-O tubing years desirable 1.4-1.6 of safety coefficient.Therefore, under 50 years safe handling conditions, the material that 30-50 part saved by PVC-U tubing is compared.
Simultaneously common PVC-U water-feeding pipes is in pressurized situation, easily produces some load and produces stress crack, causes tubing to break breakage, and PVC-O water-feeding pipes is due to double orientation, produce thin slice layered structure, reduce stress concentration, can effectively organize crackle to pass through in the material.Therefore PVC-O water-feeding pipes possesses better short-term and longterm strength, can be widely used in the fields such as feedwater piping, mine pipeline, non-excavation laying and reparation pipeline, gas ductwork.
Summary of the invention
For above problems of the prior art, the invention provides a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing.
The present invention is achieved by the following technical solutions:
A kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing, it mixes extrusion molding by following parts by weight of raw materials and forms:
Further, described raw material also comprises urea-formaldehyde resin 60-65 part of following weight part, polyvinyl alcohol 50-60 part, terephthaldehyde's ester butanediol ester 40-55 part.
Further, described polyvinyl chloride (PVC) RESINS is SG-5 type resin.
Further, described weighting agent is nano modification calcium carbonate or micron modified calcium carbonate.
Further, described environment-friendly type one package stabilizer is Ca-Zn one package stabilizer.
Further, described processing aid is processing aids acrylic resin.
Further, described impact modifier is acrylic ester impact-resisting modifier.
Further, described lubricant is one or more of stearic acid or its ester class, salt, metal soap, polyolefin oligomer class, Organo-modified polyoxy silane, titanic acid ester and aluminate coupling agent.
Further, described weather resisting agent is Rutile type Titanium Dioxide.
Wherein, polyvinyl chloride (PVC) RESINS belongs to the macromolecular material of non-crystalline type, because the polarity chlorine element in molecule exists, therefore PVC possesses higher rigidity, between second-order transition temperature and melt temperature, under external force, molecule segment changes from lack of alignment to ordered arrangement, material is anisotropy by isotropic transition, forms space three-dimensional reticulated structure.
It is low that urea-formaldehyde resin has cost, good to the tack of object plane, can improve the bonding force between material, and flexibility is better, and viscosity is large;
The water tolerance that polyvinyl alcohol has strong adherence, epithelium snappiness, smoothness, oil-proofness, solvent resistance, protective colloid, gas barrier performance, wear resistance and has through special processing;
Annular terephthaldehyde ester butanediol ester has rapid polymerization, and melt viscosity is lower, thermoformable, the performance of reactionless heat;
Weighting agent utilizes its structural state, size to be filled in resin tridimensional network, improves product strength.
The polarity node of the polar group in environment-friendly type one package stabilizer and polyvinyl chloride resin has avidity, form the binding substances that bond energy is stronger, thus weaken or eliminate the magnetism of each layer ionic linkage of PVC, the segment that PVC is wound around mutually is easy to diffusion, between molecular radical, boundary is easy to disappear, and promotes polyvinyl chloride resin plasticizing.Zinc soap and calcium soap are by substitution reaction and replacement(metathesis)reaction simultaneously, reduce PVC thermolysis, slow down the dispose procedure of HCL gas, play stabilising effect.
Processing aid, impact modifier adopt core-shell copolymerized thing, two phase structure is formed with PVC co-mixing system, wherein disperse phase is core-shell copolymerized thing, external phase is polyvinyl chloride resin, when being subject to External Force Acting, there is Voiding deformation in core-shell copolymerized thing, causes matrix resin generation shear yielding, thus improve melting efficiency and melt strength.
Powder surface activator, lubricant can reduce the molecular force between molten polymer, make molecular chain Relative sliding and rotation, reduce intermolecular internal friction, improve mobility.Form at polymer melt and equipment interface place the lubricant layer aligned simultaneously, play buffer action, reduce friction between the two, improve stripping result.
Weather resisting agent can shield or absorb ultraviolet energy, quenching singlet oxygen and hydroperoxide decomposition is become inactive substance, makes high molecular polymer under the radiation of light, can get rid of or slow down photochemical reaction possibility, stop or postpone the process of photoaging, thus improve weathering resistance.Reach the object extending high polymer product work-ing life.
Beneficial effect of the present invention is: the present invention you can provide a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing composition of raw materials.Under other above-mentioned raw materials such as processing aid, impact modifier and polyvinyl chloride (PVC) RESINS Modification Effects, improve the intensity of PVC-O tubing, reduce the risk that tubing hydraulic pressure breaks.The hydrostatic performance of tubing of the present invention 20 DEG C of 10h, 20 DEG C of 1000h crack-free ne-leakages, drop impact real impact rate (TIR) is less than or equal to 10 parts, and ring stiffness is more than or equal to corresponding grade, tensile strength is more than or equal to 50MPa, and longitudinal welds is less than or equal to 5 parts.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 81 parts, and nano modification calcium carbonate is 8 parts, and Ca-Zn one package stabilizer is 4 parts, and processing aids acrylic resin is 1 part, and acrylic ester impact-resisting modifier is 1 part, and stearic acid or its ester class are 1 part, and Rutile type Titanium Dioxide is 3 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.
Pipe performance:
Embodiment 2
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 82 parts, urea-formaldehyde resin 61 parts, polyvinyl alcohol 55 parts, terephthaldehyde's ester butanediol ester 45 parts, nano modification calcium carbonate is 9 parts, and Ca-Zn one package stabilizer is 3 parts, processing aids acrylic resin is 0.5 part, acrylic ester impact-resisting modifier is 0.5 part, and the mixture of stearic acid or its ester class, salt, metal soap, polyolefin oligomer class, Organo-modified polyoxy silane, titanic acid ester and aluminate coupling agent is 0.1 part, and Rutile type Titanium Dioxide is 3.9 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.
Pipe performance:
Embodiment 3
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 83 parts, urea-formaldehyde resin 62 parts, polyvinyl alcohol 53 parts, terephthaldehyde's ester butanediol ester 48 parts, micron modified calcium carbonate is 8 parts, and Ca-Zn one package stabilizer is 4 parts, processing aids acrylic resin is 0.5 part, acrylic ester impact-resisting modifier is 0.5 part, and the mixture of titanic acid ester and aluminate coupling agent is 0.5 part, and Rutile type Titanium Dioxide is 3.5 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.
Pipe performance:
Embodiment 4
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 84 parts, urea-formaldehyde resin 63 parts, polyvinyl alcohol 58 parts, terephthaldehyde's ester butanediol ester 52 parts, nano modification calcium carbonate is 5 parts, and Ca-Zn one package stabilizer is 4 parts, processing aids acrylic resin is 1 part, acrylic ester impact-resisting modifier is 0.5 part, and the mixture of metal soap and polyolefin oligomer class is 0.5 part, and Rutile type Titanium Dioxide is 5 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.Pipe performance:
Embodiment 5
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 85 parts, urea-formaldehyde resin 65 parts, polyvinyl alcohol 50 parts, terephthaldehyde's ester butanediol ester 55 parts, micron modified calcium carbonate is 5 parts, and Ca-Zn one package stabilizer is 5 parts, processing aids acrylic resin is 0.5 part, acrylic ester impact-resisting modifier is 0.5 part, and the mixture of metal soap and polyolefin oligomer class is 1 part, and Rutile type Titanium Dioxide is 3 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.
Pipe performance:
Embodiment 6
The parts by weight of raw materials of tubing is as follows:
SG-5 type resin is 80 parts, urea-formaldehyde resin 60 parts, polyvinyl alcohol 60 parts, terephthaldehyde's ester butanediol ester 40 parts, nano modification calcium carbonate is 10 parts, and Ca-Zn one package stabilizer is 4 parts, processing aids acrylic resin is 1 part, acrylic ester impact-resisting modifier is 1 part, and stearic acid or its ester class are 1 part, and Rutile type Titanium Dioxide is 3 parts.
And its preparation method is: divided by quality by above-mentioned raw materials and weigh, drops in high-speed mixer in certain sequence, carry out hot combination treatment, under heat and shearing action, each component fully mixes, coated, then enters in low speed mixer, cools.After mixing, material is transferred to extrusion moulding in forcing machine.
Pipe performance:
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 and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing, is characterized in that: it is extruded by following parts by weight of raw materials mixing and forms:
2. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described raw material also comprises urea-formaldehyde resin 60-65 part of following weight part, polyvinyl alcohol 50-60 part, terephthaldehyde's ester butanediol ester 40-55 part.
3. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described polyvinyl chloride (PVC) RESINS is SG-5 type resin.
4. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described weighting agent is nano modification calcium carbonate or micron modified calcium carbonate.
5. the anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing of the one feedwater according to claim 1 or 3, is characterized in that: described environment-friendly type one package stabilizer is Ca-Zn one package stabilizer.
6. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described processing aid is processing aids acrylic resin.
7. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described impact modifier is acrylic ester impact-resisting modifier.
8. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described lubricant is one or more of stearic acid or its ester class, salt, metal soap, polyolefin oligomer class, Organo-modified polyoxy silane, titanic acid ester and aluminate coupling agent.
9. a kind of feedwater anti-impact resistance to compression biaxially orienting polyvinyl chloride tubing according to claim 1, is characterized in that: described weather resisting agent is Rutile type Titanium Dioxide.
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| CN201510536535.5A CN105038036A (en) | 2015-08-26 | 2015-08-26 | Impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply |
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| CN201510536535.5A CN105038036A (en) | 2015-08-26 | 2015-08-26 | Impact-resistant and press-resistant biaxial orientation polyvinyl chloride pipe for water supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106280135A (en) * | 2016-08-31 | 2017-01-04 | 江苏建投宝塑科技有限公司 | A kind of double orientation PVC O tubing and preparation method |
| CN106867143A (en) * | 2017-03-01 | 2017-06-20 | 保定市力达塑业有限公司 | A kind of biaxially orienting polyvinyl chloride tubing and preparation method thereof |
| AU2017204061B1 (en) * | 2016-12-31 | 2018-06-14 | Yonggao Co., Ltd. | Composite material for high-impact polyvinyl chloride reinforced pipe |
| US10647843B2 (en) | 2016-04-20 | 2020-05-12 | Rohm And Haas Company | Polyvinyl chloride pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10647843B2 (en) | 2016-04-20 | 2020-05-12 | Rohm And Haas Company | Polyvinyl chloride pipe |
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Application publication date: 20151111 |