CN107964195A - A kind of high pressure resistant pipe fitting and its preparation process - Google Patents
A kind of high pressure resistant pipe fitting and its preparation process Download PDFInfo
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- CN107964195A CN107964195A CN201711426333.0A CN201711426333A CN107964195A CN 107964195 A CN107964195 A CN 107964195A CN 201711426333 A CN201711426333 A CN 201711426333A CN 107964195 A CN107964195 A CN 107964195A
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2205/03—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 kind of high pressure resistant pipe fitting and its preparation process, which is made of the component of following parts by weight：100 parts of polyvinyl chloride resin；59 parts of heat stabilizer；10 15 parts of filler；6 11 parts of anti-impact auxiliary agent；0.25 0.9 parts of lubricant；0.1 0.5 parts of light stabilization aid；0.2 0.9 parts of colouring agent；Anti-impact auxiliary agent includes at least one of 561 anti-impact modifiers of KANE ACE B, KANE ACE PA101 processing aids；Lubricant includes at least one of ethylene bis stearamide, oxidized polyethylene wax, paraffin.High pressure resistant pipe fitting in the present invention has smooth surface, is less prone to the phenomenon of fouling, can also reduce the resistance to fluid；And with preferable high pressure resistant effect.
Description
Technical field
The present invention relates to plastic material technical field, more specifically, it relates to a kind of high pressure resistant pipe fitting and its preparation work
Skill.
Background technology
High-pressure pipe member refers to the higher pipe fitting of voltage endurance capability, in the chemical standard in China, high-pressure pipe member bear pressure >=
16MPa.High-pressure pipe member is used under specific environment, such as high steam equipment, chemical industry high-temperature and pressure pipeline etc..
Publication No. CN1436649A, publication date disclose a kind of laminated plastics in August, 2003 Chinese patent of 20 days
The preparation method of multiple tube, from internal layer to outer layer by corrosion-resistant anti-friction layer, adhesive linkage, fiberglass reinforcement layers and corrosion-resistant anti-
Totally four layers of composite material form shock ply, it is characterized in that the respective weight proportion of four layers of composite material is：Corrosion-resistant anti-friction modeling
Expect internal layer：100 parts of halogenation high polymer, 8 parts of stabilizer, 2 parts of lubricant, 11.5 parts of modifier, 11 parts of additive are antistatic
5 parts of agent；Resistance to stress adhesive linkage：100 parts of unsaturated-resin, 0.6 part of curing agent, 0.2 part of accelerating agent；Fiberglass reinforcement layers：No
30~50 parts of saturated resin, 50~70 parts of alkali-free glass fibre, 0.8 part of curing agent, 0.3 part of accelerating agent；Outside corrosion-resistant shock resistance
Layer：100 parts of high density polyethylene (HDPE), 2 parts of color masterbatch.
The prior art forms pipe fitting by MULTILAYER COMPOSITE, however, due to the bonding strength phase between the material in each layer
Difference is larger, compared with easily causing the imperfect problem of high-voltage resistance capability.Therefore, a kind of pipe fitting with preferable high pressure resistant effect with
Larger commercial value.
The content of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of high pressure resistant pipe fitting, have preferable
High voltage performance the advantages of.
To achieve the above object one, the present invention provides following technical solution：
A kind of high pressure resistant pipe fitting, is made of the component of following parts by weight：
100 parts of polyvinyl chloride resin；
5-9 parts of heat stabilizer；
10-15 parts of filler；
6-11 parts of anti-impact auxiliary agent；
0.25-0.9 parts of lubricant；
0.1-0.5 parts of light stabilization aid；
0.2-0.9 parts of colouring agent；
The anti-impact auxiliary agent includes at least one in KANEACE B-561 anti-impact modifiers, KANEACE PA101 processing aids
Kind；The lubricant includes at least one of ethylene bis stearamide, oxidized polyethylene wax, paraffin.
Through the above technical solutions, Corvic (polyvinyl chloride resin) belongs to synthetic material, have preferable anti-flammability,
Chemical proofing, mechanical strength and electrical insulating property, but its heat endurance is poor.Polyvinyl chloride resin glass transition temperature is 80-
90 DEG C, plasticization temperature is 130-150 DEG C, and processing and forming temperature is 160-200 DEG C.For temperature at 90-130 DEG C, polyvinyl chloride resin is by white
Turn yellow, discharge a small amount of HCl；At 140-150 DEG C, take off HCl reactions and accelerate, more than 160 DEG C, take off HCl and react very rapid,
Material color and luster is weighed out to blackening.
Heat stabilizer helps to make polyvinyl chloride resin have preferable heat endurance in whole preparation process, helps to improve
The heat endurance of polyvinyl chloride resin in process, and the high pressure resistant pipe fitting temperature range applicatory obtained is larger, in -5-65
DEG C environment in can apply.Filler and colouring agent are respectively provided with the effect of filling, increase the connection between above-mentioned kinds of ingredients
Close effect, so as to improve the anti-impact agent performance of the high pressure resistant pipe fitting of formation.And the pipe that colouring agent imparting prepares is different
Color, with suitable for different fields.
The addition of light stabilization aid, is not easy to make the high pressure resistant pipe fitting in the application to be subject to the influence of light and aging work occurs
With so as to help to extend the service life of high pressure resistant pipe fitting.
KANE ACE B-561 anti-impact modifiers originate from Japan, are white powder, and its average grain diameter is less than 3350 μ
M, the volatile quantity that 60min is heated at 105 DEG C are less than 0.9%.KANE ACE PA101 processing aids originate from Japan, for white powder
Last shape, and its average grain diameter is less than 1000 μm, the volatile quantity that 60min is heated at 105 DEG C is less than 1.5%.KANE ACE B-
561 anti-impact modifiers can increase the mechanical performance of polyvinyl chloride resin with KANE ACE PA101 processing aids, and improve obtain at the same time
The high pressure resistant impact property of the high pressure resistant pipe fitting obtained, is not easy to make high pressure resistant pipe fitting manage when being subject to higher hydraulic pressure to act on
Part deforms or the obvious phenomenon of change in size, and then is extended the service life of high pressure resistant pipe fitting.
Ethylene bis stearamide, oxidized polyethylene wax, paraffin are respectively provided with preferable lubricating action, contribute to reduce component it
Between friction coefficient, make component fully dispersed.Meanwhile cooperate with anti-impact auxiliary agent, help to make to be integrally formed more uniform
High pressure resistant impact property.
Found through studying (burst pressure tests), anti-impact auxiliary agent cooperates with lubricant, helps to make the resistance to height to be formed
Pressure pipe part has more uniform quality and appearance, and high voltage performance is excellent, for a long time pipe fitting can be kept not deform upon, and
The stabilization of size is kept, extends the service life of pipe fitting.
A kind of high pressure resistant pipe fitting according to claim 1, it is characterised in that the anti-impact auxiliary agent is by KANE ACE
B-561 anti-impact modifiers and KANE ACE PA101 processing aids composition, the KANE ACE B-561 anti-impact modifiers
Parts by weight be 5-8 part, the parts by weight of the KANE ACE B-561 anti-impact modifiers are 1-3 parts.
Through the above technical solutions, KANE ACE B-561 anti-impact modifiers and KANE ACE PA101 processing aid shapes
Into complex role, so as to further improve the high pressure resistant impact property of the high pressure resistant pipe fitting of acquisition.
More preferably：The high pressure resistant pipe fitting is made of the component of following parts by weight：
100 parts of polyvinyl chloride resin；
5-7 parts of heat stabilizer；
10-13 parts of filler；
6-8 parts of anti-impact auxiliary agent；
0.6-0.9 parts of lubricant；
0.3-0.5 parts of light stabilization aid；
0.2-0.5 parts of colouring agent；
In the anti-impact auxiliary agent, KANE ACE B-561 anti-impact modifiers, the parts by weight of KANE ACE PA101 processing aids
Number is than being 4: 1.
Through the above technical solutions, found through studying (burst pressure tests), the component tool in the range of above-mentioned parts by weight
There is more preferably high voltage performance.
More preferably：The heat stabilizer includes at least one of calcium zinc heat stabilizer, rare earth thermal stabilizer.
Through the above technical solutions, calcium zinc stabilizer is nontoxic, there is preferable heat endurance, photostability, and add
Work excellent performance, helps to improve the processability of steel-plastics composite pipe external wall material.But the greasy property of calcium zinc stabilizer and transparent
Poor-performing, and ethylene bis stearamide, oxidized polyethylene wax, paraffin in lubricant, have preferable lubricant effect, contribute to
The mixed effect for forming various components in high pressure resistant pipe fitting is improved, so that high pressure resistant pipe fitting is more uniformly distributed.
Rare-earth stabilizer has excellent heat endurance, photostability and the transparency and tinting strength, tinting power, and rare earth therein has
Catharsis, helps further to reduce due to the influence for the impurity that component is brought into, so that extent of polymerization is helped to improve, and
Increase molecular weight, produce the primary bond of polymer chain structure, additionally aid the structure more dense uniform for making high pressure resistant pipe fitting, and
Improve mechanical strength.
More preferably：The filler is nano-calcium carbonate.
Through the above technical solutions, the particle diameter of nano-calcium carbonate is thinner, the gap being easier between filling components, and contribute to
Mobile performance is improved, is more uniformly distributed the mixing of component.
More preferably：The smooth stabilization aid includes ultra-violet absorber UV531, optothermal stabilizer HPT, ultraviolet
At least one of absorbent RMB.
Through the above technical solutions, the main component in ultra-violet absorber UV531 is 2- hydroxyl -4- n-octyloxy hexichol
Ketone, has preferable compatibility, volatility is small, can effectively improve the ageing resistance of the high pressure resistant pipe fitting of acquisition with polyvinyl chloride resin
Can, extend its service life.Main component in optothermal stabilizer HPT is hexamethylphosphoramide, helps to improve acquisition
The weatherability and cold resistance of high pressure resistant pipe fitting.Main become in ultra-violet absorber RMB is single benzoic acid resorcinol, is had
There is preferable anti-aging effect.
More preferably：The colouring agent includes at least one of black titanium, titanium dioxide, chrome yellow.
Through the above technical solutions, not only having coloring effect, filling effect is also acted as, is helped to improve in the application
The compactness extent of the high pressure resistant pipe fitting obtained.
More preferably：The titanium dioxide is rutile type titanium white.
Through the above technical solutions, rutile type titanium white has preferable strengthening action, high pressure resistant pipe is helped to improve
The impact resistance of part.
The purpose of the present invention two is to provide a kind of preparation process of high pressure resistant pipe fitting.
To achieve the above object two, the present invention provides following technical solution：
A kind of preparation process of high pressure resistant pipe fitting, includes the following steps：
S1, by the polyvinyl chloride resin of corresponding parts by weight, heat stabilizer, filler, anti-impact auxiliary agent, lubricant, light stabilization aid,
Toner is uniformly mixed, and obtains the first mixture；
S2, the first mixture obtained in step S1 is granulated, and obtains high pressure resistant pipe fitting materials；
S3, the high pressure resistant pipe fitting materials extrusion molding that will be obtained in step S2, obtains high pressure resistant pipe fitting.
Through the above technical solutions, the high pressure resistant pipe fitting prepared has uniform and bright and clean appearance, and it is excellent
Corrosion resistance and resistance to ag(e)ing, and high pressure resistant excellent effect.
In conclusion the invention has the advantages that：
1. anti-impact auxiliary agent and lubricant cooperate, help to make the high pressure resistant pipe fitting to be formed have more uniform quality and
Appearance, and high voltage performance is excellent, safety coefficient is high；Also for a long time pipe fitting can be kept not deform upon, and keep the stabilization of size；
2. component is respectively provided with good acidproof, alkaline-resisting, the effect of electrochemical corrosion resistant, so that high pressure resistant used by the application
The chemical stability of pipe fitting is good；
3. the inner wall smooth of high pressure resistant pipe fitting, surfacing, fluid resistance is small, non-scaling.
Embodiment
With reference to embodiment, the present invention will be described in detail.
Embodiment 1：A kind of high pressure resistant pipe fitting, included component and its corresponding parts by weight are as shown in table 1, and pass through
Following steps prepare：
S1, polyvinyl chloride resin, heat stabilizer, filler, anti-impact auxiliary agent, lubricant, light stabilization aid, colouring agent are uniformly mixed, obtained
Obtain the first mixture；
S2, the first mixture obtained in step S1 is granulated, and obtains high pressure resistant pipe fitting materials；
S3, the high pressure resistant pipe fitting materials extrusion molding that will be obtained in step S2, obtains high pressure resistant pipe fitting.
Wherein, heat stabilizer is calcium zinc heat stabilizer；
Filler is nano-calcium carbonate；
Anti-impact auxiliary agent be ratio of weight and number be 4: 1 KANEACE B-561 anti-impact modifiers, KANEACE PA101 processing help
Agent；
Lubricant be ratio of weight and number be 1: 1: 1 ethylene bis stearamide, oxidized polyethylene wax, paraffin；
Light stabilization aid is ultra-violet absorber UV531；
Colouring aid is that the rutile type titanium white that ratio of weight and number is 1: 1 and titanium are black.
Embodiment 2-5：A kind of high pressure resistant pipe fitting, difference lies in included component and its corresponding weight with embodiment 1
It is as shown in table 1 to measure number.
Component and its corresponding parts by weight included by 1 embodiment 1-5 of table
Embodiment 6：A kind of high pressure resistant pipe fitting, difference lies in all KANE ACE B-561 of anti-impact auxiliary agent with implementing 1
Anti-impact modifier.
Embodiment 7：A kind of high pressure resistant pipe fitting, difference lies in all KANE ACE of anti-impact auxiliary agent with embodiment 1
PA101 processing aids.
Embodiment 8：A kind of high pressure resistant pipe fitting, difference lies in anti-impact auxiliary agent is that parts by weight are 5 parts with embodiment 1
KANE ACE B-561 anti-impact modifiers and the KANE ACE PA101 processing aids that parts by weight are 1 part.
Embodiment 9：A kind of high pressure resistant pipe fitting, difference lies in anti-impact auxiliary agent is that parts by weight are 8 parts with embodiment 1
KANE ACE B-561 anti-impact modifiers and the KANE ACE PA101 processing aids that parts by weight are 3 parts.
Embodiment 10：A kind of high pressure resistant pipe fitting, difference lies in lubricant is ethylene bis stearamide with embodiment 1.
Embodiment 11：A kind of high pressure resistant pipe fitting, difference lies in lubricant is that ratio of weight and number is 1: 1 with embodiment 1
Ethylene bis stearamide, oxidized polyethylene wax.
Embodiment 12：A kind of high pressure resistant pipe fitting, difference lies in heat stabilizer is rare earth thermal stabilizer with embodiment 1.
Embodiment 13：A kind of high pressure resistant pipe fitting, difference lies in heat stabilizer is that ratio of weight and number is 1: 1 with embodiment 1
Calcium zinc heat stabilizer and rare earth thermal stabilizer.
Embodiment 14：A kind of high pressure resistant pipe fitting, difference lies in light stabilizer is optothermal stabilizer HPT with embodiment 1.
Embodiment 15：A kind of high pressure resistant pipe fitting, difference lies in light stabilizer is that ratio of weight and number is 1 with embodiment 1:
1.2 ultra-violet absorber UV531 and ultra-violet absorber RMB.
Embodiment 16：A kind of high pressure resistant pipe fitting, difference lies in light stabilizer is that ratio of weight and number is 1: 1 with embodiment 1
: 1.2 ultra-violet absorber UV531, optothermal stabilizer HPT, ultra-violet absorber RMB.
Wherein, polyvinyl chloride resin is purchased from Group Co., Ltd of Xingjiang Tianye Co.；Stabilizer is purchased from plastic cement Co., Ltd of Linan Holley；
Nano-calcium carbonate is purchased from Jiangxi Huaming nano-calcium carbonate Co., Ltd；Ethylene bis stearamide, oxidized polyethylene wax, paraffin are purchased from
Shanghai Huayao Trade Co., Ltd.；Rutile type titanium white is purchased from Shanghai river Shanghai titanium white heavy chemicals Co., Ltd；Light stabilizer
Purchased from the grand chemical Science and Technology Ltd. of Nantong prestige.
Comparative example 1：A kind of pipe fitting, difference lies in not including anti-impact auxiliary agent and lubricant with embodiment 1.
Comparative example 2：A kind of pipe fitting, difference lies in not including anti-impact auxiliary agent with embodiment 1.
Comparative example 3：A kind of pipe fitting, difference lies in not including lubricant with embodiment 1.
Comparative example 4：A kind of pipe fitting, difference lies in anti-impact auxiliary agent is the KANE that parts by weight are 1 part with embodiment 1
ACE B-561 anti-impact modifiers.
Comparative example 5：A kind of pipe fitting, difference lies in anti-impact auxiliary agent is the KANE that parts by weight are 1 part with embodiment 1
ACE PA101 processing aids.
Comparative example 6：A kind of pipe fitting, difference lies in lubricant is the paraffin that parts by weight are 0.05 part with embodiment 1.
Comparative example 7：A kind of pipe fitting, difference lies in lubricant is that the oxidation that parts by weight are 0.05 part gathers with comparative example 1
Ethylene waxes.
Burst pressure tests
Test specimen：The high pressure resistant pipe fitting obtained in embodiment 1-16 is chosen as test sample 1-16, chooses in comparative example 1-7 and obtains
The pipe fitting obtained is as control sample 1-7.
Test method：
1. viewing test sample 1-16, the appearance of control sample 1-7, test sample 1-16, the outside diameter of control sample 1-7 and interior are measured respectively
Footpath, record；
2. in the environment of 20 DEG C, explosion is carried out to test sample 1-16, control sample 1-7 using plastics burst pressure tester respectively
The test of pressure.
Result of the test：Test sample 1-16, the appearance of control sample 1-7, internal diameter and outside diameter, burst pressure are as shown in table 2.
2 test sample 1-16 of table, the appearance of control sample 1-7, internal diameter and outside diameter, burst pressure
As shown in Table 2, the inner and outer surfaces of test sample 1-16 are smooth, are less prone to the phenomenon of fouling；And using process
In, the resistance to fluid can be reduced；In addition, when being subject to elevated pressures to act on, smooth surface is not easily susceptible to local stress work
With and produce crack, the burst pressure of binding tests sample 1-16, it can be seen that it has preferable high pressure resistant effect.And compare
In sample 1,3,6,7, inner and outer surfaces are not smooth enough, in use, can not only increase the resistance of fluid, also easily cause knot
Dirty phenomenon, and when fluid has corrosiveness, be more easy to make control sample 1,3,6,7 produce corrosion.And control sample 1-7 is being subject to height
During the effect of pressure, it is vulnerable to the effect of local stress, and produces crack, high pressure resistant effect is poor, and safety coefficient is relatively low.Above-mentioned difference
Explanation：Anti-impact auxiliary agent and lubricant cooperate, help to make the high pressure resistant pipe fitting to be formed have more uniform quality and
Appearance, inner wall smooth, surfacing, fluid resistance is small, non-scaling；And high voltage performance is excellent, for a long time pipe fitting can be kept not send out
Raw deformation, and the stabilization of size is kept, safety coefficient is high；It is and overall with good acidproof, alkaline-resisting, the effect of electrochemical corrosion resistant
Fruit, so that the chemical stability of high pressure resistant pipe fitting is good.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of high pressure resistant pipe fitting, it is characterised in that be made of the component of following parts by weight：
100 parts of polyvinyl chloride resin；
5-9 parts of heat stabilizer；
10-15 parts of filler；
6-11 parts of anti-impact auxiliary agent；
0.25-0.9 parts of lubricant；
0.1-0.5 parts of light stabilization aid；
0.2-0.9 parts of colouring agent；
The anti-impact auxiliary agent is included in KANE ACE B-561 anti-impact modifiers, KANE ACE PA101 processing aids at least
It is a kind of；The lubricant includes at least one of ethylene bis stearamide, oxidized polyethylene wax, paraffin.
2. a kind of high pressure resistant pipe fitting according to claim 1, it is characterised in that the anti-impact auxiliary agent is by KANE ACE B-
561 anti-impact modifiers and KANE ACE PA101 processing aids composition, the KANE ACE B-561 anti-impact modifiers
Parts by weight are 5-8 parts, and the parts by weight of the KANE ACE B-561 anti-impact modifiers are 1-3 parts.
3. a kind of high pressure resistant pipe fitting according to claim 1, it is characterised in that the high pressure resistant pipe fitting is by following parts by weight
Several component compositions：
100 parts of polyvinyl chloride resin；
5-7 parts of heat stabilizer；
10-13 parts of filler；
6-8 parts of anti-impact auxiliary agent；
0.6-0.9 parts of lubricant；
0.3-0.5 parts of light stabilization aid；
0.2-0.5 parts of colouring agent；
In the anti-impact auxiliary agent, KANE ACE B-561 anti-impact modifiers, the parts by weight of KANE ACE PA101 processing aids
Number is than being 4:1.
4. a kind of high pressure resistant pipe fitting according to claim 1 or 2 or 3, it is characterised in that the heat stabilizer includes calcium zinc
At least one of heat stabilizer, rare earth thermal stabilizer.
5. a kind of high pressure resistant pipe fitting according to claim 1 or 2 or 3, it is characterised in that the filler is nano-calcium carbonate
Calcium.
6. a kind of high pressure resistant pipe fitting according to claim 1 or 2 or 3, it is characterised in that the smooth stabilization aid includes purple
At least one of ultraviolet absorbers UV531, optothermal stabilizer HPT, ultra-violet absorber RMB.
A kind of 7. high pressure resistant pipe fitting according to claim 1 or 2 or 3, it is characterised in that the colouring agent include titanium it is black,
At least one of titanium dioxide, chrome yellow.
8. a kind of high pressure resistant pipe fitting according to claim 7, it is characterised in that the titanium dioxide is rutile titanium dioxide
Powder.
9. the preparation process of a kind of high pressure resistant pipe fitting as described in any one in claim 1-3, it is characterised in that including such as
Lower step：
S1, by the polyvinyl chloride resin of corresponding parts by weight, heat stabilizer, filler, anti-impact auxiliary agent, lubricant, light stabilization aid,
Toner is uniformly mixed, and obtains the first mixture；
S2, the first mixture obtained in step S1 is granulated, and obtains high pressure resistant pipe fitting materials；
S3, the high pressure resistant pipe fitting materials extrusion molding that will be obtained in step S2, obtains high pressure resistant pipe fitting.
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| CN108690299A (en) * | 2018-06-28 | 2018-10-23 | 江苏新泰隆管件有限公司 | A kind of high temperature resistant PVC pipe fitting and its preparation process |
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| CN108690299A (en) * | 2018-06-28 | 2018-10-23 | 江苏新泰隆管件有限公司 | A kind of high temperature resistant PVC pipe fitting and its preparation process |
| CN109810427A (en) * | 2018-12-10 | 2019-05-28 | 广州天市塑料原料有限公司 | A kind of pvc material and preparation method thereof of high pressure resistant environment |
| CN112724556A (en) * | 2020-12-29 | 2021-04-30 | 苏州奥凯高分子材料股份有限公司 | ACE (angiotensin converting enzyme) -modified impact-resistant toughened transparent hard PVC (polyvinyl chloride) sheet and preparation method thereof |
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