CN113174100A - HDPE enhancement mode winding arrangement wall pipe B type pipe - Google Patents
HDPE enhancement mode winding arrangement wall pipe B type pipe Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- 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
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- 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
- C08K3/38—Boron-containing compounds
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- C08K2003/385—Binary compounds of nitrogen with boron
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention relates to a HDPE enhanced winding structure wall pipe B-shaped pipe which comprises the following materials in parts by weight: 80-90 parts of high-density polyethylene, 2-4 parts of black master batch, 15-20 parts of filling master batch, 0.5-1 part of coupling agent, 1-1.5 parts of solubilizer and 1.2-1.4 parts of antioxidant. The HDPE enhanced winding structure wall pipe B-shaped pipe uses high-density polyethylene as a raw material, so that the HDPE enhanced winding structure wall pipe B-shaped pipe has the characteristics of light weight, low manufacturing cost, convenience in construction and welding and the like; on the basis of meeting the national standard, the formula with the highest cost performance is finally obtained through multiple verification in the aspect of production and batching, and the formula can be produced in batch.
Description
Technical Field
The invention belongs to the technical field of pipes, and particularly relates to a HDPE enhanced winding structure wall pipe B-shaped pipe.
Background
Along with the continuous perfection of rural and urban infrastructures, the drainage pipe network and the centralized sewage treatment need to be improved urgently, the demand of drainage pipes is increased rapidly, energy conservation and emission reduction are realized, low-carbon economy becomes the mainstream trend of current development, the plastic drainage pipe gradually replaces the traditional drainage pipe and is compared with the traditional concrete drainage pipe, glass fiber reinforced plastic sand inclusion pipe, metal pipe and the like, and the plastic drainage pipe has the main defects of small pressure resistance and poor ageing resistance.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a HDPE enhanced winding structure wall pipe B-shaped pipe, namely an HDPE enhanced winding inner rib pipe, which has stronger ageing resistance, large pressure resistance and longer service life.
The technical scheme provided by the invention is as follows:
an HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
80-90 parts of high-density polyethylene, 2-4 parts of black master batch, 15-20 parts of filling master batch, 0.5-1 part of coupling agent, 1-1.5 parts of solubilizer and 1.2-1.4 parts of antioxidant.
The high-density polyethylene (HDPE) is a white powder or granular product, is nontoxic and tasteless, has the crystallinity of 80-90 percent, the softening point of 125-135 ℃, and the use temperature of 100 ℃; the hardness, tensile strength and creep property are better than those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are good; the chemical stability is good, and the paint is not dissolved in any organic solvent at room temperature, and is resistant to corrosion of acid, alkali and various salts; the film has small permeability to water vapor and air and low water absorption; the anti-aging performance is poor, the heat resistance, migration resistance and stability of the high-density polyethylene are improved by adding the black master batch, and the black master batch has the advantages of good dispersion, high gloss, strong tinting strength and good intermiscibility; the filling master batch has good dispersibility and stability, the wear resistance and strength of the high-density polyethylene are improved by adding the filling master batch, the compatibility among all components is improved by the solubilizer, and the antioxidant can delay or inhibit the oxidation process of the polymer, thereby preventing the aging of the polymer and prolonging the service life of the polymer.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: the filling master batch is one of talcum powder, calcium carbonate and wollastonite.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: the coupling agent is one or two of a rare earth coupling agent and a silane coupling agent.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: the solubilizer is an ethylene-octene copolymer.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: the antioxidant is tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester.
The thermal oxidation process of organic compounds is a series of free radical chain reactions, and under the action of heat, light or oxygen, chemical bonds of organic molecules are broken to generate active free radicals and hydroperoxides. The hydroperoxide undergoes decomposition reactions, which also generate hydroxyl radicals and hydroxyl radicals. The free radicals can initiate a series of free radical chain reaction, so that the structure and the property of the organic compound are radically changed, the antioxidant is used for eliminating the free radicals which are just generated or promoting the decomposition of the hydroperoxide to prevent the chain reaction, and the preferable antioxidant is pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: and the composite material also comprises 2-4 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer.
According to the scheme, an ethylene-methyl acrylate copolymer is modified, hexafluoropropylene molecules are introduced into the ethylene-methyl acrylate copolymer, so that the anti-aging capacity and the anti-compression capacity of the ethylene-methyl acrylate copolymer are improved on the premise that the thermal stability of the ethylene-methyl acrylate copolymer is not influenced, in addition, researches also find that the hexafluoropropylene-ethylene-methyl acrylate copolymer can be combined with high-density polyethylene for use, so that the anti-aging capacity of the hexafluoropropylene-ethylene-methyl acrylate copolymer is further improved, and meanwhile, the toughness of a B-type pipe can be obviously improved, so that the strength and the anti-aging performance of the B-type pipe under a severe environment for a long time are improved.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: the hexafluoropropylene-ethylene-methyl acrylate copolymer contains 2-4 wt% of hexafluoropropylene, 26-28 wt% of ethylene and the balance methyl acrylate copolymer.
The hexafluoropropylene-ethylene-methyl acrylate copolymer contains 2-4 wt% of hexafluoropropylene, 26-28 wt% of ethylene and the balance methyl acrylate copolymer. Research shows that when the proportion of hexafluoropropylene, ethylene and methyl acrylate copolymer in hexafluoropropylene-ethylene-methyl acrylate copolymer is limited, excellent ageing resistance and compression strength can be obtained, so that the proportion of hexafluoropropylene, ethylene and methyl acrylate copolymer is limited.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: and 0.4-0.6 part of boron nitride. After the boron nitride powder is combined with the hexafluoropropylene-ethylene-methyl acrylate copolymer, the stress in the system can be reduced, the toughness of the B-shaped pipe is improved, and the B-shaped pipe has higher compressive strength.
Preferably, the HDPE reinforced winding structure wall pipe B-type pipe, wherein: further comprises Ti3GeC20.1 to 0.5 portion. Ti3GeC2The boron nitride-based composite material has a synergistic effect, and after the boron nitride-based composite material is combined with boron nitride, the toughness of the B-shaped pipe can be synergistically improved, and the internal stress of a system is reduced, so that the B-shaped pipe has the highest compressive strength, and the compressive strength of the B-shaped pipe is almost unchanged after the boron nitride-based composite material is used for a long time.
The invention has the advantages that:
(1) the HDPE enhanced winding structure wall pipe B-shaped pipe has a reasonable structure, is beneficial to enlarging the contact surface with soil and filling backfill soil into the trough of the pipe to form the combined action of pipe and soil; due to the special arch-shaped production structure die, the B-shaped tube has a large outer surface area, and the tube and soil are co-pressed, so that the high pressure resistance is achieved; the unique structure of HDPE reinforced winding structure wall tube B-tube equipment molding results in a tensile strength 40% higher than that of hollow wall tubes making it extremely high in loop stiffness, stability, and seam stretch.
(2) The HDPE enhanced winding structure wall pipe B-shaped pipe uses high-density polyethylene as a raw material, so that the HDPE enhanced winding structure wall pipe B-shaped pipe has the characteristics of light weight, low manufacturing cost, convenience in construction and welding and the like; on the basis of meeting the national standard, the formula with the highest cost performance is finally obtained through multiple verification in the aspect of production and batching, and the formula can be produced in batch.
(3) According to the HDPE enhanced winding structure wall pipe B-shaped pipe, the mode that the high-density polyethylene is matched with the ethylene-octene copolymer is adopted, the B-shaped pipe can have better compression resistance and aging resistance, the aging resistance and the compression resistance of the B-shaped pipe are further improved by adding the hexafluoropropylene-ethylene-methyl acrylate copolymer, the stress in the system can be reduced after the boron nitride powder is combined with the hexafluoropropylene-ethylene-methyl acrylate copolymer, the toughness of the B-shaped pipe is improved, the B-shaped pipe has higher compression strength, and Ti are contained in the B-shaped pipe3GeC2After the boron nitride is combined with the boron nitride, the toughness of the B-shaped pipe can be synergistically improved, and the internal stress of a system is reduced, so that the B-shaped pipe has the highest compressive strength.
Drawings
FIG. 1 is a schematic structural view of a HDPE reinforced winding structured wall pipe B-type pipe of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
An HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
80 parts of high-density polyethylene, 2 parts of black master batch, 15 parts of talcum powder, 0.5 part of gamma-glycidoxypropyl trimethoxy, 1 part of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.2 parts of pentaerythritol ester, 2 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer, 2 wt% of hexafluoropropylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, 26 wt% of ethylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, and the balance of methyl acrylate copolymer, 0.4 part of boron nitride, and Ti3GeC20.1 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy and ethylene in parts by weight-octene copolymer, tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]Pentaerythritol ester, hexafluoropropylene-ethylene-methyl acrylate copolymer, boron nitride, Ti3GeC2(ii) a Mixing the above raw materials;
s2, adding the mixed raw materials into a screw extruder, melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum forming, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain the product.
Example 2
An HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
85 parts of high-density polyethylene, 3 parts of black master batch, 18 parts of calcium carbonate, 0.7 part of dimethyl diethoxy silane, 1.2 parts of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.3 parts of pentaerythritol ester, 3 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer, 3 wt% of hexafluoropropylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, 27 wt% of ethylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, and the balance of methyl acrylate copolymer, 0.5 part of boron nitride, and Ti3GeC20.3 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid in parts by weight]Pentaerythritol ester, hexafluoropropylene-ethylene-methyl acrylate copolymer, boron nitride, Ti3GeC2(ii) a Mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
Example 3
The utility model provides a HDPE enhancement mode winding arrangement wall pipe B type pipe, characterized by: the material comprises the following materials in parts by weight:
high density90 parts of polyethylene, 4 parts of black master batch, 20 parts of wollastonite, 1 part of rare earth coupling agent, 1.5 parts of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.4 parts of pentaerythritol ester, 4 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer, 4 wt% of hexafluoropropylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, 28 wt% of ethylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer, and the balance of methyl acrylate copolymer, 0.6 part of boron nitride, and Ti3GeC20.5 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid in parts by weight]Pentaerythritol ester, hexafluoropropylene-ethylene-methyl acrylate copolymer, boron nitride, Ti3GeC2(ii) a Mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
Comparative example 1
An HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
80 parts of high-density polyethylene, 2 parts of black master batch, 15 parts of talcum powder, 0.5 part of gamma-glycidoxypropyl trimethoxy, 1 part of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.2 parts of pentaerythritol ester, 2 parts of ethylene-methyl acrylate copolymer, 0.4 part of boron nitride and Ti3GeC20.1 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid in parts by weight]Pentaerythritol ester, ethylene-methyl acrylate copolymerBoron nitride, Ti3GeC2(ii) a Mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
Comparative example 2
An HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
80 parts of high-density polyethylene, 2 parts of black master batch, 15 parts of talcum powder, 0.5 part of gamma-glycidoxypropyl trimethoxy, 1 part of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.2 parts of pentaerythritol ester, 0.4 part of boron nitride and Ti3GeC20.1 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid in parts by weight]Pentaerythritol esters, boron nitride, Ti3GeC2(ii) a Mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
Comparative example 3
An HDPE reinforced winding structure wall pipe B-type pipe, wherein: the material comprises the following materials in parts by weight:
85 parts of high-density polyethylene, 3 parts of black master batch, 18 parts of calcium carbonate, 0.7 part of dimethyl diethoxy silane, 1.2 parts of ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid]1.3 parts of pentaerythritol ester, 3 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer, wherein the hexafluoropropylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer is 3 wt%, the ethylene content is 27 wt%, and the balance is propyleneAcid methyl ester copolymer, Ti3GeC20.3 part.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid in parts by weight]Pentaerythritol ester, hexafluoropropylene-ethylene-methyl acrylate copolymer, Ti3GeC2(ii) a Mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
Comparative example 4
The utility model provides a HDPE enhancement mode winding arrangement wall pipe B type pipe, characterized by: the material comprises the following materials in parts by weight:
90 parts of high-density polyethylene, 4 parts of black master batch, 20 parts of wollastonite, 1 part of rare earth coupling agent, 1.5 parts of ethylene-octene copolymer, 1.4 parts of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 4 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer, wherein the hexafluoropropylene content in the hexafluoropropylene-ethylene-methyl acrylate copolymer is 4 wt%, the ethylene content is 28 wt%, the balance is methyl acrylate copolymer, and 0.6 part of boron nitride.
A preparation method of an HDPE enhanced winding structure wall pipe B-shaped pipe comprises the following steps:
s1, weighing high-density polyethylene, black master batch, talcum powder, gamma-glycidyl ether oxypropyl trimethoxy, ethylene-octene copolymer, tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, hexafluoropropylene-ethylene-methyl acrylate copolymer and boron nitride in parts by weight; mixing the above raw materials;
and S2, adding the mixed raw materials into a screw extruder for melting, plasticizing and extruding to obtain a polyethylene pipe, and sequentially carrying out vacuum shaping, water tank cooling, strip traction, winding forming and fixed-length cutting on the polyethylene pipe to obtain a product.
The results of the performance tests of examples 1-3 and comparative examples 1-4 are set forth below:
the performance test method comprises the following steps:
1) the ring flexibility can be tested: and (3) performing a loop flexibility performance test on the B-shaped pipe prepared according to any one of the above embodiments or comparative examples, wherein the loop flexibility performance test is carried out according to GB/T19472.2-2017, if the B-shaped pipe is smooth, has no directional bending and no fracture phenomenon, the test result is judged to be qualified, and if not, the test result is judged to be unqualified.
2) And (3) impact performance test: the B-shaped pipe prepared according to any one of the examples or the comparative examples is subjected to an impact performance test, the impact performance test is in accordance with GB/T19472.2-2017, the impact performance TIR/% < 10 is qualified, otherwise, the impact performance is unqualified.
3) And (3) oven test: the B-type pipe prepared according to any one of the above examples or comparative examples is subjected to an oven test, and the oven test detection is in accordance with GB/T19472.2-2017, and the welded part is qualified if no delamination or cracking exists, otherwise, the welded part is unqualified.
TABLE 1
As can be seen from Table 1, the impact resistance and the aging resistance of the HDPE enhanced winding structure wall pipe B type pipe prepared in the embodiments 1-4 of the invention are superior to those of the comparative examples 1-4, the aging resistance and the compression resistance of the HDPE enhanced winding structure wall pipe B type pipe are improved by adding the hexafluoropropylene-ethylene-methyl acrylate copolymer, and Ti is added3GeC2And boron nitride can improve the toughness of the B-shaped pipe in a synergistic manner and reduce the internal stress of the system, so that the B-shaped pipe has the highest compressive strength.
The special arch of the surface of the HDPE enhanced winding structure wall pipe B type pipe enables the pipe to have a large external surface area, and pipe soil co-compression enables the pipe to have high compression resistance during construction; the special strengthening rib of section has also improved the compressive capacity of product to a great extent, and the effectual shortcoming that has solved traditional plastic tubing compressive capacity not enough, each component of B type pipe synergistic action each other not only makes the product obtain the promotion of quality in the aspect of the ageing resistance also beautiful unanimous satisfying market demand in the tubular product outward appearance.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a HDPE enhancement mode winding arrangement wall pipe B type pipe, characterized by: the material comprises the following materials in parts by weight: 80-90 parts of high-density polyethylene, 2-4 parts of black master batch, 15-20 parts of filling master batch, 0.5-1 part of coupling agent, 1-1.5 parts of solubilizer and 1.2-1.4 parts of antioxidant.
2. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: the filling master batch is one of talcum powder, calcium carbonate and wollastonite.
3. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: the coupling agent is one or two of a rare earth coupling agent and a silane coupling agent.
4. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: the solubilizer is an ethylene-octene copolymer.
5. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: the antioxidant is tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester.
6. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: and the composite material also comprises 2-4 parts of hexafluoropropylene-ethylene-methyl acrylate copolymer.
7. The HDPE reinforced enwound structured wall B-tube of claim 6 which is characterized by: the hexafluoropropylene-ethylene-methyl acrylate copolymer contains 2-4 wt% of hexafluoropropylene, 26-28 wt% of ethylene and the balance methyl acrylate copolymer.
8. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: and 0.4-0.6 part of boron nitride.
9. The HDPE reinforced enwound structured wall B-tube of claim 1 which is characterized by: further comprises Ti3GeC20.1 to 0.5 portion.
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| CN108929474A (en) * | 2018-08-07 | 2018-12-04 | 杭州毅而玛管业有限公司 | A kind of HDPE winding reinforcing pipe |
| CN109210283A (en) * | 2018-08-20 | 2019-01-15 | 江苏百通塑业发展有限公司 | High-strength PVC tubing |
| CN110591208A (en) * | 2019-10-30 | 2019-12-20 | 安徽国升塑业科技有限公司 | HDPE winding structure wall B-shaped pipe and preparation process thereof |
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