CN109294073A - A kind of ageing-resistant PPR pipe and preparation method thereof - Google Patents
A kind of ageing-resistant PPR pipe and preparation method thereof Download PDFInfo
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- CN109294073A CN109294073A CN201811057201.XA CN201811057201A CN109294073A CN 109294073 A CN109294073 A CN 109294073A CN 201811057201 A CN201811057201 A CN 201811057201A CN 109294073 A CN109294073 A CN 109294073A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
Abstract
The invention discloses a kind of ageing-resistant PPR pipes and preparation method thereof.PPR pipe described in the PPR pipe is prepared by the component of following mass fraction: 80 ~ 100 parts of PPR raw material, 5 ~ 8 parts of toner, 5 ~ 20 parts of lignin.By the way that lignin is added in PPR raw material, the phenylpropyl alcohol alkyl structure of lignin itself and alkylated processing method can guarantee the favorable compatibility of itself and PPR material, and unique hindered phenol structure then can effectively capture the generated free radical in photooxidation resistance and thermo-oxidative ageing, and then improve the photostability and thermal stability in PPR pipe road, the comprehensive performance that can be achieved with and guarantee tubing in preparation process by the adjustment to existing mold and technological parameter, has greatly widened the application range of PPR pipe.
Description
Technical field
The present invention relates to plastic conduit technical fields, more particularly, to a kind of ageing-resistant PPR pipe and its preparation side
Method.
Background technique
PPR is the english abbreviation of atactic copolymerized polypropene (polypropylene random), products characteristics toughness
Good, intensity is high, and processing performance is excellent, and creep-resistant property is good under higher temperature, and has atactic copolymerized polypropene distinctive high saturating
Bright property feature.PPR pipe has energy-saving material-saving, environmental protection, light compared with the products such as traditional cast iron pipe, coating steel pipe, pipe of cement
The many merits such as matter is high-strength, corrosion-resistant, inner wall smooth non-scaling, construction and maintenance simplicity, long service life, are widely used in building
The building such as plumbing, town and country plumbing, gas, electric power and cable jacket, industrial fluids conveying, agricultural irrigation, municipal administration, work
The multiple fields such as industry and agricultural.But since there are a large amount of tertiary carbon structures in PPR material molecular chain structure itself, if ultraviolet
It is easy to happen light degradation reaction (namely ageing of plastics phenomenon) under the action of light, and then causes tube performance to decline, therefore mesh
Preceding PPR pipe road overwhelming majority when installation takes the form of concealed installation, significantly limits the application of PPR pipe.It is at present
The photostability of PPR is improved, common method has addition photomask agent, ZnO, TiO2And the light stabilizers such as carbon black are changed
Property, its anti-light aging is improved, is also had by increasing special anti-aging layer in pipeline outer-layer, to enhance the uvioresistant of pipeline
Ability not only increases the production cost of PPR pipe, and anti-aging property improvement is limited.
Therefore it provides one kind can improve photostability, the PPR pipe of its ageing-resistant performance is promoted for expanding PPR pipe
The application of material has very important significance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the defects and deficiency of existing PPR pipe ageing-resistant performance, provide one
The ageing-resistant PPR pipe of kind, by selecting the biggish renewable resource lignin of nature storage that traditional additive is replaced to make
For PPR light stabilizer, granulation and extrusion molding are blended with PPR raw material and toner, so that novel ageing-resistant PPR pipe be made
Material.
The object of the present invention is to provide a kind of preparation methods of above-mentioned PPR pipe.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of ageing-resistant PPR pipe, the PPR pipe are prepared by the component of following mass fraction:
80~100 parts of PPR raw material；5~8 parts of toner；5~20 parts of lignin.
The lignin that the present invention uses, due to containing a large amount of active phenolic hydroxyl group (its phenols functional group in molecular structure
Account for the 10~15% of functional group's total amount), and there is unique " hindered phenol " structure, have stronger capture hydroperoxides free
The ability of base, so lignin can improve the age inhibiting ability of pipeline antioxygen.On the other hand, lignin itself is also containing a large amount of
Glycerol-β-guaiaci lignum acid esters, the structure are readily formed phenols free radical, have one to be set for capture hydroperoxides free radical
With introducing lignin in a polymer matrix by the method for being blended or filling, not being only the possibility to keeping original performance
Cost is reduced simultaneously, is also possible to realize the further promotion of properties of product after optimization.PPR pipe of the invention has fine
Anti-aging property, and then extend PPR pipe road in the service life of outdoor application, expand its application range.
Preferably, 100 parts of the PPR raw material；8 parts of toner；10 parts of lignin.
Preferably, the lignin is alkylation lignin.Although phenolic hydroxyl group is more in lignin, free radical ability is captured
It is stronger, but decline therewith with the compatibility of polymeric matrix, the present invention is by alkylated method in lignin molecule structure
Long carbon chain is introduced, to improve the compatibility between lignin and polymeric matrix, and then lignin is promoted and PPR matrix is changed
Property effect.
Preferably, the lignin includes alkali lignin, sulfate-reducing conditions, ox-hide lignin, acetic acid lignin or enzyme
Solve the one or more of lignin.Lignin form is powder, easy to operate in alkylation process, in tubing production process
Also it is easy to be blended with other materials.
Preferably, it is described alkylation lignin the preparation method comprises the following steps: configuration lignin dispersion solution, adjust pH value of solution to
10~12, chloralkane or brominated alkanes are added with being alkylated react and are alkylated lignin to get arriving, wherein chloralkane
Or the additional amount of brominated alkanes is the 25~40% of lignin quality.
Preferably, the chloralkane or brominated alkanes are 1- bromo hexane or dodecyl bromo alkane.
Preferably, 120~140 DEG C of the alkylated reaction temperature, 2~4h of reaction time.
It is highly preferred that the alkylated reaction temperature is 125~130 DEG C, reaction time 3h.
Preferably, the additional amount of the chloralkane or brominated alkanes is the 30~40% of lignin quality.
Preferably, the dispersion solution of the lignin is that lignin is dispersed in the aqueous solvent of isopropanol to be prepared.
Preferably, the volume ratio of isopropanol and water is 1~1:3~1 in the aqueous solvent of the isopropanol.
Preferably, the alkylation lignin passes through purification process, the purification process are as follows: by alkylation lignin in pH
It precipitates, washs in the solution that value is 5~6, in methylene chloride by precipitating dissolution, suction filtration obtains filtrate, by filtrate and petroleum ether
Mixing, precipitating obtain purification of alkyl lignin.Wherein alkylation lignin precipitates in the solution that pH value is 5~6, and washing is
In order to preferably remove the complete lignin of unreacted.
Methylene chloride can dissolve alkylation lignin, also contain unreacted long-chain in the filtrate of methylene chloride dissolution
Bromoalkane, by with petroleum ether hybrid extraction, stand a period of time Hou Qu lower layer, the alkyl that can be purified after drying
Change lignin.
A kind of preparation method of above-mentioned PPR pipe, includes the following steps: for PPR pipe component to be uniformly mixed, extrusion is made
Beads fuse is blended and forms by grain, and cooling and shaping obtains PPR pipe, and wherein extruding pelletization temperature is 170~220 DEG C.
Compared with existing PPR feed pipe, the present invention has excellent light stability and intensity, uses in outdoor mounted
Service life than traditional PPR water supply pipe range, safety and environmental protection, cost performance is high.In addition to this, of the invention due to the addition of lignin
Thermal stability also has certain promotion, and it is one that compared with traditional PPR pipe, use scope of the invention is wider, and purposes is more extensive
Kind has the water-feeding pipes of market prospects.
Compared with prior art, the beneficial effects of the present invention are:
It is wooden by being added in PPR raw material the present invention provides a kind of ageing-resistant PPR pipe and preparation method thereof
Element, the phenylpropyl alcohol alkyl structure of lignin itself and alkylated processing method can guarantee that it is good compatible with PPR matrix
Property, and unique hindered phenol structure then can effectively capture generated free radical during photooxidation resistance and thermo-oxidative ageing,
And then the anti-aging property in PPR pipe road is improved, it can be real by the adjustment to existing mold and technological parameter in preparation process
Now and guarantee the comprehensive performance of tubing, greatly widens the application range of PPR pipe.
Specific embodiment
The present invention is further illustrated With reference to embodiment, but embodiment the present invention is not done it is any
The restriction of form.Unless otherwise indicated, source chemicals used in the embodiment of the present invention are the source chemicals routinely bought.
Examples 1 to 3
A kind of ageing-resistant PPR pipe, the component of the mass fraction described in table 1 are prepared.
Table 1
| Serial number | PPR raw material | Toner | Lignin |
| Embodiment 1 | 80 | 5 | 5 |
| Embodiment 2 | 100 | 8 | 10 |
| Embodiment 3 | 80 | 5 | 20 |
Embodiment 4
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 10.5, and be added and be equivalent to wood
The dodecyl bromo alkane of quality quality 30%, is stirred to react 3h within the temperature range of 125 DEG C, product pH value be 5 it is molten
It precipitates and washs in liquid, sediment is dissolved in methylene chloride and by filtering the reactant for removing and participating in, filtrate and petroleum ether
Mixing makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor,
Alkylated lignin can be obtained after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
Mixing is added in 80 parts of atactic copolymerized polypropenes (PPR), 5 parts of toner, 5 parts of alkylation alkali lignin together
It is strong that ageing-resistant low-temperature flexibility can be obtained then by double screw extruder in 180 DEG C of extruding pelletizations in machine high-speed stirred 8min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding, using obtaining after cooling and shaping by PPR pellet
The strong PPR pipe of ageing-resistant low-temperature flexibility.
Embodiment 5
A kind of ageing-resistant PPR pipe, each component is same as Example 2, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 11, and be added be equivalent to it is wooden
The dodecyl bromo alkane of quality amount 35% is stirred to react 3h, the solution that product is 6 in pH value within the temperature range of 130 DEG C
Middle precipitating and washing, the reactant that sediment is dissolved in methylene chloride and is participated in by filtering removal, filtrate and petroleum ether are mixed
Conjunction makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor, warp
Alkylated lignin can be obtained by crossing after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
100 parts of atactic copolymerized polypropenes (PPR), 8 parts of toner are added together with 10 parts of alkylation alkali lignin
Then ageing-resistant PPR grain can be obtained in 190 DEG C of extruding pelletizations by double screw extruder in batch mixer high-speed stirred 10min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding by material, ageing-resistant using obtaining after cooling and shaping
PPR pipe.
Embodiment 6
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 12, and be added be equivalent to it is wooden
The dodecyl bromo alkane of quality amount 30% is stirred to react 3h, the solution that product is 5 in pH value within the temperature range of 125 DEG C
Middle precipitating and washing, the reactant that sediment is dissolved in methylene chloride and is participated in by filtering removal, filtrate and petroleum ether are mixed
Conjunction makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor, warp
Alkylated lignin can be obtained by crossing after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
Mixing is added in 80 parts of atactic copolymerized polypropenes (PPR), 5 parts of toner, 5 parts of alkylation alkali lignin together
It is strong that ageing-resistant low-temperature flexibility can be obtained then by double screw extruder in 180 DEG C of extruding pelletizations in machine high-speed stirred 8min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding, using obtaining after cooling and shaping by PPR pellet
The strong PPR pipe of ageing-resistant low-temperature flexibility.
Embodiment 7
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 10.5, and be added and be equivalent to wood
The dodecyl bromo alkane of quality quality 40%, is stirred to react 3h within the temperature range of 125 DEG C, product pH value be 5 it is molten
It precipitates and washs in liquid, sediment is dissolved in methylene chloride and by filtering the reactant for removing and participating in, filtrate and petroleum ether
Mixing makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor,
Alkylated lignin can be obtained after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
Mixing is added in 80 parts of atactic copolymerized polypropenes (PPR), 5 parts of toner, 5 parts of alkylation alkali lignin together
It is strong that ageing-resistant low-temperature flexibility can be obtained then by double screw extruder in 180 DEG C of extruding pelletizations in machine high-speed stirred 8min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding, using obtaining after cooling and shaping by PPR pellet
The strong PPR pipe of ageing-resistant low-temperature flexibility.
Embodiment 8
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 10.5, and be added and be equivalent to wood
The dodecyl bromo alkane of quality quality 30%, is stirred to react 3h within the temperature range of 140 DEG C, product pH value be 5 it is molten
It precipitates and washs in liquid, sediment is dissolved in methylene chloride and by filtering the reactant for removing and participating in, filtrate and petroleum ether
Mixing makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor,
Alkylated lignin can be obtained after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
Mixing is added in 80 parts of atactic copolymerized polypropenes (PPR), 5 parts of toner, 5 parts of alkylation alkali lignin together
It is strong that ageing-resistant low-temperature flexibility can be obtained then by double screw extruder in 180 DEG C of extruding pelletizations in machine high-speed stirred 8min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding, using obtaining after cooling and shaping by PPR pellet
The strong PPR pipe of ageing-resistant low-temperature flexibility.
Embodiment 9
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and wherein lignin is alkylation lignin, preparation
Method is as follows:
Lignin is dispersed in the in the mixed solvent of isopropanol and water, and pH value is adjusted to 10.5, and be added and be equivalent to wood
The dodecyl bromo alkane of quality quality 30%, is stirred to react 3h within the temperature range of 130 DEG C, product pH value be 5 it is molten
It precipitates and washs in liquid, sediment is dissolved in methylene chloride and by filtering the reactant for removing and participating in, filtrate and petroleum ether
Mixing makes unreacted long-chain bromoalkane be dissolved in petroleum ether, and aforesaid liquid is stood a period of time Hou Qu lower layer in extractor,
Alkylated lignin can be obtained after drying.
Ageing-resistant PPR pipe the preparation method is as follows:
Mixing is added in 80 parts of atactic copolymerized polypropenes (PPR), 5 parts of toner, 5 parts of alkylation alkali lignin together
It is strong that ageing-resistant low-temperature flexibility can be obtained then by double screw extruder in 220 DEG C of extruding pelletizations in machine high-speed stirred 8min
Gained PPR pellet is then passed through single screw extrusion machine melt blending and molding, using obtaining after cooling and shaping by PPR pellet
The strong PPR pipe of ageing-resistant low-temperature flexibility.
Comparative example 1~4
A kind of ageing-resistant PPR pipe, the component of the mass fraction described in table 1 are prepared.
Table 1
| Serial number | PPR raw material | Toner | Lignin |
| Comparative example 1 | 80 | 5 | 3 |
| Comparative example 2 | 80 | 5 | 25 |
| Comparative example 3 | 80 | 3 | 5 |
| Comparative example 4 | 80 | 10 | 5 |
Comparative example 5
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and preparation method includes the following steps: PPR
Tubing component is uniformly mixed, extruding pelletization, and beads fuse is blended and is formed, and cooling and shaping obtains PPR pipe, wherein extruding pelletization
Temperature is 160 DEG C.
Comparative example 6
A kind of ageing-resistant PPR pipe, each component is same as Example 1, and preparation method includes the following steps: PPR
Tubing component is uniformly mixed, extruding pelletization, and beads fuse is blended and is formed, and cooling and shaping obtains PPR pipe, wherein extruding pelletization
Temperature is 250 DEG C.
As a result it detects
Photooxidation resistance test is carried out by fluorescent ultraviolet weather resistance test case, time 4000h.Thermo-oxidative ageing processing passes through heat
Ageing oven carries out, and the processing time is 28 days.Sample is tested respectively after passing through photooxidation resistance and thermo-oxidative ageing processing respectively
Bending strength and impact strength, to indicate its anti-aging property.
Notch impact strength is tested by balance weight impact testing machine according to GB/T 1043.1-2008, is surveyed at 23 DEG C
Examination.Every group of sample quantities is no less than 10 samples, smooth surface, no blind crack.The impact of material is obtained by test
Intensity indicates test result with the arithmetic mean of instantaneous value of 10 effective experimental datas.
Bending strength test is tested by universal testing machine according to GB/T 9341-2008, loading velocity 10mm/min.
Sample quantities are no less than 5, smooth surface, micro-crack.The bending strength of material is obtained by test, effectively with 5
The arithmetic mean of instantaneous value of test data indicates experimental result.
(1) photooxidative aging performance detects
(2) thermal-oxidative aging property detects
| Embodiment | Bending strength (MPa) | Impact strength (KJ/m2) |
| 1 | 7.7 | 17.6 |
| 2 | 7.8 | 18.2 |
| 3 | 7.4 | 17 |
| 4 | 11.5 | 26.8 |
| 5 | 15.2 | 34.5 |
| 6 | 13.9 | 32.4 |
| 7 | 14.1 | 32.9 |
| 8 | 10 | 23.3 |
| 9 | 9.4 | 21.9 |
| Comparative example | Bending strength (MPa) | Impact strength (KJ/m2) |
| 1 | 6.2 | 14.5 |
| 2 | 4.2 | 9.8 |
| 3 | 6.6 | 15.4 |
| 4 | 6.4 | 14.9 |
| 5 | 7.3 | 15.6 |
| 6 | 5.4 | 12.6 |
From such results, it can be seen that being added in PPR pipe either during photooxidation resistance or thermo-oxidative ageing
Lignin can improve anti-aging properties of pipe really, and in additive amount when 10wt% or so, reinforcing effect is best.With
Additive amount improves, and performance declines therewith, this is because lignin is polar substances, PPR matrix is apolar substance, and the two is compatible
Property it is too poor, can reunite if the additive amount of lignin is too many, so formed defect point, to reduce the performance of material.Make
To be preferred, lignin is more preferable with the compatibility of PPR matrix after being handled by alkylation, and reinforcing effect further increases.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of ageing-resistant PPR pipe, which is characterized in that the PPR pipe is prepared by the component of following mass fraction:
80 ~ 100 parts of PPR raw material
5 ~ 8 parts of toner
5 ~ 20 parts of lignin.
2. PPR pipe as described in claim 1, which is characterized in that the lignin is alkylation lignin.
3. PPR pipe as described in claim 1, which is characterized in that the lignin include alkali lignin, sulfate-reducing conditions,
The one or more of ox-hide lignin, acetic acid lignin or enzymolysis xylogen.
4. PPR pipe as claimed in claim 2, which is characterized in that it is described alkylation lignin the preparation method comprises the following steps: configuration it is wooden
The dispersion solution of element adjusts pH value of solution to 10 ~ 12, and chloralkane or brominated alkanes are added and react to get arriving with being alkylated
It is alkylated lignin, wherein the additional amount of chloralkane or brominated alkanes is the 25 ~ 40% of lignin quality.
5. PPR pipe as claimed in claim 4, which is characterized in that the alkylation answers 120 ~ 140 DEG C of temperature, the reaction time 2 ~ 4
h。
6. PPR pipe as claimed in claim 4, which is characterized in that the alkylated reaction temperature is 125 ~ 130 DEG C, when reaction
Between 3 h.
7. PPR pipe as claimed in claim 4, which is characterized in that the dispersion solution of the lignin is to be dispersed in lignin
It is prepared in the aqueous solvent of isopropanol.
8. PPR pipe as claimed in claim 7, which is characterized in that the volume of isopropanol and water in the aqueous solvent of the isopropanol
Than for 1 ~ 1:3 ~ 1.
9. PPR pipe as claimed in claim 4, which is characterized in that the alkylation lignin passes through purification process, the purifying
Processing are as follows: lignin will be alkylated and precipitated in the aqueous solution that pH value is 5 ~ 6, washed, in methylene chloride by precipitating dissolution, taken out
Filter obtains filtrate, and filtrate is mixed with petroleum ether, and precipitating obtains purification of alkyl lignin.
10. a kind of preparation method of any one of claim 1 ~ 9 PPR pipe, which comprises the steps of: will
PPR pipe component is uniformly mixed, extruding pelletization, and beads fuse is blended and is formed, cooling and shaping obtains PPR pipe, wherein squeezing out
Prilling temperature is 170 ~ 220 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187471A (en) * | 2020-02-25 | 2020-05-22 | 爱康企业集团(上海)有限公司 | Anti-aging fresh air pipe and preparation method thereof |
| CN113214568A (en) * | 2021-04-30 | 2021-08-06 | 慈溪宇久电器有限公司 | Modified plastic for extension socket and preparation method thereof |
| CN113861569A (en) * | 2021-10-20 | 2021-12-31 | 联塑市政管道（河北）有限公司 | PPR pipe with low shrinkage and high stability and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756155A (en) * | 2014-01-27 | 2014-04-30 | 河南联塑实业有限公司 | Antibacterial PPR pipe |
| CN103788485A (en) * | 2014-01-13 | 2014-05-14 | 东华大学 | Method for improving heat stability of polypropylene plastic |
| CN104403209A (en) * | 2014-12-14 | 2015-03-11 | 孟红琳 | Anti-aging PPR (Polypropylene Random) pipe and preparation method thereof |
| CN105778267A (en) * | 2015-12-30 | 2016-07-20 | 上海普利特复合材料股份有限公司 | Novel environmental-aging-resistant PP material and preparation method thereof |
-
2018
- 2018-09-11 CN CN201811057201.XA patent/CN109294073A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103788485A (en) * | 2014-01-13 | 2014-05-14 | 东华大学 | Method for improving heat stability of polypropylene plastic |
| CN103756155A (en) * | 2014-01-27 | 2014-04-30 | 河南联塑实业有限公司 | Antibacterial PPR pipe |
| CN104403209A (en) * | 2014-12-14 | 2015-03-11 | 孟红琳 | Anti-aging PPR (Polypropylene Random) pipe and preparation method thereof |
| CN105778267A (en) * | 2015-12-30 | 2016-07-20 | 上海普利特复合材料股份有限公司 | Novel environmental-aging-resistant PP material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 董晓莉 等: "聚丙烯/木质素复合材料制备及性能", 《新型建筑材料》 * |
| 逢鲁峰 等: "《土工工程材料》", 31 August 2012, 中国电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187471A (en) * | 2020-02-25 | 2020-05-22 | 爱康企业集团(上海)有限公司 | Anti-aging fresh air pipe and preparation method thereof |
| CN113214568A (en) * | 2021-04-30 | 2021-08-06 | 慈溪宇久电器有限公司 | Modified plastic for extension socket and preparation method thereof |
| CN113861569A (en) * | 2021-10-20 | 2021-12-31 | 联塑市政管道（河北）有限公司 | PPR pipe with low shrinkage and high stability and preparation method thereof |
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Application publication date: 20190201 |