CN103012931B - Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch - Google Patents
Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch Download PDFInfo
- Publication number
- CN103012931B CN103012931B CN201210555668.3A CN201210555668A CN103012931B CN 103012931 B CN103012931 B CN 103012931B CN 201210555668 A CN201210555668 A CN 201210555668A CN 103012931 B CN103012931 B CN 103012931B
- Authority
- CN
- China
- Prior art keywords
- parts
- batch
- pipe
- polyethylene pipe
- silane cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
Abstract
The invention discloses functional master-batch for an organosilane crosslinked polyethylene pipe, and a preparation method and application of functional master-batch, which belong to the technical field of master-batch for engineering plastics. 100 parts of high density polyethylene, 25-35 parts of an adsorbing agent, 5-10 parts of a lubricating agent, 2-5 parts of an antioxidant, 2-5 parts of a light stabilizer and 3-6 parts of a crosslinking accelerant are stirred through a high stirring machine, subjected to twin-screw extrusion, pelleted and the like to obtain the functional master-batch; and the functional master-batch is used for extrusion molding of the large-caliber organosilane crosslinked polyethylene pipe. The preparation method of the functional master-batch is simple and suitable for industrial production; the method is applied to the extrusion molding of the large-caliber organosilane crosslinked polyethylene pipe; the pipe processing stability is good; the extension rate and the self-crosslinking speed of the obtained pipe are far better than those of a common pipe; and the functional master-batch facilitates a pipe manufacturer and can be added according to different devices and pipe specifications, and 2-5% of the master-batch can be added directly into a common silane crosslinking material, so that a pipe can be extruded after uniform stirring.
Description
Technical field
The invention belongs to engineering plastics master-batch techniques field, be specifically related to one and be applied to silane cross-linked polyethylene pipe, rate of crosslinking can be accelerated and improve silane cross-linked polyethylene pipe functional agglomerate extruding processing characteristics and its production and use.
Background technology
PEX material has good thermotolerance, creep resistance, and crosslinked with silicane material common on the market at present is mainly used for producing small-bore tubing (D20-25), the production of heavy caliber PEX tubing (D110-315), be applied in domestic or blank.Common two-step approach crosslinked with silicane AB expects to produce tubing, and in process of production, can there is the problem of gel and equipment buildup, therefore equipment needs regular cleaning, and the consecutive production cycle is shorter; On slave unit, improving cost is comparatively large and can not be general with common PE tube extruding equipment, therefore adds cost to manufacturer; Need poach after crosslinked with silicane tube extrusion common in addition, could complete crosslinked at short notice, this operation adds place and drops into and energy consumption.Especially be cross-linked in tubing process at extrusion heavy caliber, wall thickness, above-mentioned two problems is more outstanding, limits the application of PEX tubing in large diameter pipeline field and popularization.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of silane cross-linked polyethylene pipe functional agglomerate, improve rate of crosslinking and the processing characteristics of common crosslinked with silicane material, realize silane cross-linked polyethylene pipe functional agglomerate of heavy caliber PEX tubing and its production and use.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, it is characterized in that its component and parts by weight as follows:
High density polyethylene(HDPE) 100 parts of sorbent material 25-35 parts
Lubricant 5-10 part oxidation inhibitor 2-5 part
Photostabilizer 2-5 part crosslinking accelerator 3-6 part.
Its medium high density polyethylene selects PE80 tubing level, as master batch carrier, sorbent material for adsorbing lower-molecular substance, lubricant improve apparent, the oxidation inhibitor of common silane material processing characteristics and tubing in order to prevent polythene material oxidative degradation in the course of processing and use procedure, photostabilizer improves ageing resistance that tubing uses, crosslinking accelerator in the open for accelerating the rate of crosslinking of tubing.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, it is characterized in that its component and parts by weight as follows:
30 parts, high density polyethylene(HDPE) 100 parts of sorbent materials
4 parts, lubricant 8 parts of oxidation inhibitor
Photostabilizer 4 parts of crosslinking accelerators 5 parts.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, it is characterized in that described sorbent material is the aluminium silicate mineral of cell texture, its particle diameter is 1000-3000 order.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, is characterized in that described lubricant mass ratio is the mixture that the N of 1:1, N-have supportted bis-stearamides and high molecular polydimethylsiloxane.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, is characterized in that described high molecular polydimethylsiloxane molecular weight is 40-80 ten thousand.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, is characterized in that described oxidation inhibitor is any one or more than one the mixture in antioxidant 1010, irgasfos 168 or antioxidant 330.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, it is characterized in that described photostabilizer is 2-(3 ', 5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazoles, two (2,2,6,6-tetramethyl-piperidyl) sebate or mass ratio be the two mixture of 1:1.
Described a kind of silane cross-linked polyethylene pipe functional agglomerate, is characterized in that described crosslinking accelerator is p-tert-butyl benzoic acid.
The preparation method of described silane cross-linked polyethylene pipe functional agglomerate, is characterized in that: 25-35 part sorbent material under the condition of 80 DEG C, stirs 5 minute under being 700 revs/min in high mixer by rotating speed by (1), leaves standstill and is cooled to room temperature; (2) then adding in high mixer by 100 parts of high density polyethylene(HDPE)s, 3-8 part lubricant, 2-5 part oxidation inhibitor, 2-5 part photostabilizer and 3-6 part crosslinking accelerator, is stir 3 minutes under the technique of 400 revs/min at rotating speed; (3) material after being stirred, granulation is melt extruded again through twin screw, granulation process is temperature 180-200 DEG C, twin screw rotating speed 300-400 rev/min, after granulation is good, synchronously carry out drying, at 80 DEG C, drying 4 as a child final vacuum packaging, obtains finished product silane cross-linked polyethylene pipe functional agglomerate.
The application of described silane cross-linked polyethylene pipe functional agglomerate in the extrusion moulding of heavy caliber silane cross-linked polyethylene pipe.
By adopting above-mentioned technology, compared with prior art, beneficial effect of the present invention is as follows:
1) the present invention adds the aluminium silicate mineral of particle diameter 1000-3000 object cell texture as sorbent material, for adsorbing residual silane in tubular object extruding process, reduce gel, and the moisture continued after tube extrusion in absorbed air, moisture needed for crosslinked with silicane is provided, accelerate the crosslinked of tubing, tubing is without the need to poach, and this is particularly important to the production of heavy caliber wall thickness tubing;
2) the present invention is the N of 1:1 by adding mass ratio, N-supportted bis-stearamides and high molecular (40-80 ten thousand) polydimethylsiloxane as lubricant, not only can be cost-saving, and can synergy be produced, lubricant film is formed at plastics and intermetallic, improve the smooth finish of tubing surfaces externally and internally, alleviate the problem of the buildup of mouthful core, extend the stable period that tubing is produced;
3) functional agglomerate of the present invention can shorten the crosslinking time of finished product, and without the need to hot tub or vaporium operation, without the need to changing existing tube extruding equipment, and greatly can improve and be extruded into the apparent of QC and processing characteristics, to pipe production, producer brings great convenience;
4) functional agglomerate preparation method of the present invention simple, be suitable for suitability for industrialized production, and use it for the extrusion moulding of heavy caliber silane cross-linked polyethylene pipe, tubular object extruding good stability, the tubing elongation obtained and degree of crosslinking speed are all far superior to common silane cross-linking tube material, and impact be there is no on its tensile strength, and can add according to different equipment and tubing specification, directly can add this master batch of 2-5% in common crosslinked with silicane material, just can extruding pipe material after stirring.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention and effect are further described.But the concrete grammar used, formula and explanation are not limitation of the present invention.
Examples of implementation 1: by high density polyethylene(HDPE) (PE80) 100 parts, 25 parts, aluminium silicate mineral 1250 order of cell texture, mass ratio is the N of 1:1, N-has supportted 5 parts, the mixture of bis-stearamides and high molecular (500,000) polydimethylsiloxane, antioxidant 1010 and each 1 part of irgasfos 168, photostabilizer 2-(3 ', 5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazoles and two (2,2,6,6-tetramethyl-piperidyl) each 1 part of sebate, crosslinking accelerator p-tert-butyl benzoic acid 3 parts.
Its preparation method is as follows: by the aluminium silicate mineral of 25 part of 1250 order cell texture under the condition of 80 DEG C, stirs 5 minute under being 700 revs/min in high mixer by rotating speed, leaves standstill and is cooled to room temperature, then be the N of 1:1 by 100 parts of high density polyethylene(HDPE)s (PE80), 5 parts of mass ratioes, N-has supportted the mixture of bis-stearamides and high molecular (500,000) polydimethylsiloxane, the antioxidant 1010 of each 1 part and irgasfos 168, the 2-(3 ' of each 1 part, 5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazoles and two (2,2,6,6-tetramethyl-piperidyl) sebate each 1 part and 3 parts of p-tert-butyl benzoic acids add in above-mentioned high mixer, are stir 3 minutes under the technique of 400 revs/min at rotating speed, melt extrude with twin screw extruder again, granulation process is temperature 180 DEG C, twin screw rotating speed 400 revs/min, after granulation is good, synchronously carry out drying, drying 4 as a child final vacuum packaging at 80 DEG C, obtain finished product silane cross-linked polyethylene pipe functional agglomerate, and this master batch is used for the extrusion moulding of heavy caliber silane cross-linked polyethylene pipe, namely in common crosslinked with silicane grafted material, 3.5% this functional agglomerate is added, direct extruding pipe material after stirring, extruding bore is continuously 160mm, SDR17 tubing also observes inside and outside apparent mass, the record stably manufactured time, the results are shown in table 1.Extruding pipe material, under envrionment temperature 23 degree, relative humidity are the condition of 50%, are placed and is tested tubing degree of crosslinking and mechanical property afterwards in 30 days, the results are shown in table 2.
In above-described embodiment, sorbent material selects particle diameter to be that any particle diameter of 1000-3000 object replaces particle diameter to be select molecular weight 500,000 high molecular polydimethylsiloxane to substitute in the aluminium silicate mineral of the cell texture of 1250 objects, described lubricant; Any one or more than one mixture in oxidation inhibitor antioxidant 1010, irgasfos 168 or antioxidant 330 replaces mixture, the photostabilizer 2-(3 ' of antioxidant 1010 and irgasfos 168,5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazoles or two (2,2,6,6-tetramethyl-piperidyl) sebate replaces its mixture all can obtain same technique effect.
Embodiment 2: by high density polyethylene(HDPE) (PE80) 100 parts, 35 parts, aluminium silicate mineral 1000 order of cell texture, mass ratio is the N of 1:1, N-has supportted 10 parts, the mixture of bis-stearamides and high molecular (400,000) polydimethylsiloxane, antioxidant 330 5 parts, photostabilizer 2-(3 ', 5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazole 5 parts, crosslinking accelerator p-tert-butyl benzoic acid 6 parts.
Its preparation method and application are with embodiment 1, and wherein twin screw melt extrudes prilling temperature 200 DEG C, twin screw rotating speed 300 revs/min.
Embodiment 3: by high density polyethylene(HDPE) (PE80) 100 parts, 30 parts, aluminium silicate mineral 3000 order of cell texture, mass ratio is the N of 1:1, N-has supportted 8 parts, the mixture of bis-stearamides and high molecular (800,000) polydimethylsiloxane, antioxidant 1010 4 parts, photostabilizer two (2,2,6,6-tetramethyl-piperidyl) sebate 4 parts, crosslinking accelerator p-tert-butyl benzoic acid 5 parts.
Its preparation method and application are with embodiment 1, and wherein twin screw melt extrudes prilling temperature 190 DEG C, twin screw rotating speed 280 revs/min.
Embodiment 4: with embodiment 1, wherein the particle diameter of the aluminium silicate mineral of cell texture is 2000 orders, and consumption is 30 parts, and the pipe performance test result that application is extruded is in table 1,2.
Embodiment 5: with embodiment 1, wherein the aluminium silicate mineral particle diameter of cell texture is 2500 orders, and consumption is 35 parts, and the pipe performance test result that application is extruded is in table 1,2.
Embodiment 6: with embodiment 1, the addition that wherein N of lubricant 1:1, N-have supportted the mixture of bis-stearamides and high molecular (500,000) polydimethylsiloxane is respectively increased to 5 parts, applies the pipe performance test result extruded in table 1,2.
Embodiment 7: the adding proportion to 5% improving functional agglomerate in example 1, other techniques are identical, the results are shown in table 1,2:
Table 1 is the tubular object extruding stability of embodiment 1-7
As can be seen from the above table, after adding silane cross-linked polyethylene pipe functional agglomerate of the present invention, its continuous seepage time of the heavy caliber pipe obtained is longer than common crosslinked with silicane material a lot, and its good processing stability is described.
Table 2 is embodiment 1-7D160 pipe performance index
| Embodiment | Tensile strength/MPa | Elongation/% | Degree of crosslinking/% |
| Common crosslinked with silicane material | 20-22 | 300-450 | 30-35 |
| 1 | 21.8 | 480 | 67 |
| 2 | 22.5 | 490 | 68 |
| 3 | 23.0 | 530 | 70 |
| 4 | 21.5 | 370 | 68 |
| 5 | 20.5 | 310 | 65 |
| 6 | 22.8 | 450 | 68 |
| 7 | 21.3 | 520 | 63 |
As can be seen from the above table, after adding silane cross-linked polyethylene pipe functional agglomerate of the present invention, the elongation of the heavy caliber pipe obtained and degree of crosslinking are better than common crosslinked with silicane material far away, and tensile strength unaffected.Illustrated by embodiment, the rate of crosslinking adding this master batch tubing is accelerated greatly, and the more common crosslinked with silicane material of snappiness is improved.
Claims (5)
1. a silane cross-linked polyethylene pipe functional agglomerate, it is characterized in that its component and parts by weight as follows:
High density polyethylene(HDPE) 100 parts of sorbent material 25-35 parts
Lubricant 5-10 part oxidation inhibitor 2-5 part
Photostabilizer 2-5 part crosslinking accelerator 3-6 part,
Described sorbent material is the aluminium silicate mineral of cell texture, the aluminium silicate mineral particle diameter of described cell texture is 1000-3000 order, described lubricant mass ratio is the N of 1:1, N-has supportted the mixture of bis-stearamides and high molecular polydimethylsiloxane, described crosslinking accelerator is p-tert-butyl benzoic acid, described high molecular polydimethylsiloxane molecular weight is 40-80 ten thousand, the 2-(3 ' of described photostabilizer to be mass ratio be 1:1, 5 '-di-tert-butyl-2 '-hydroxy phenyl) 5 chlorobenzotriazoles and two (2, 2, 6, 6-tetramethyl-piperidyl) mixture of sebate.
2. a kind of silane cross-linked polyethylene pipe functional agglomerate according to claim 1, it is characterized in that its component and parts by weight as follows:
30 parts, high density polyethylene(HDPE) 100 parts of sorbent materials
4 parts, lubricant 8 parts of oxidation inhibitor
Photostabilizer 4 parts of crosslinking accelerators 5 parts.
3. a kind of silane cross-linked polyethylene pipe functional agglomerate according to claim 1, is characterized in that described oxidation inhibitor is any one or more than one the mixture in antioxidant 1010, irgasfos 168 or antioxidant 330.
4. the preparation method of a silane cross-linked polyethylene pipe functional agglomerate according to claim 1, it is characterized in that: (1) by 25-35 part sorbent material under the condition of 80 DEG C, stir 5 minutes be 700 revs/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature; (2) then adding in high mixer by 100 parts of high density polyethylene(HDPE)s, 5-10 part lubricant, 2-5 part oxidation inhibitor, 2-5 part photostabilizer and 3-6 part crosslinking accelerator, is stir 3 minutes under the technique of 400 revs/min at rotating speed; (3) material after being stirred, granulation is melt extruded again through twin screw, granulation process is temperature 180-200 DEG C, twin screw rotating speed 300-400 rev/min, after granulation is good, synchronously carry out drying, at 80 DEG C, drying 4 as a child final vacuum packaging, obtains finished product silane cross-linked polyethylene pipe functional agglomerate.
5. the application of silane cross-linked polyethylene pipe functional agglomerate according to claim 1 in the extrusion moulding of heavy caliber silane cross-linked polyethylene pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555668.3A CN103012931B (en) | 2012-12-20 | 2012-12-20 | Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555668.3A CN103012931B (en) | 2012-12-20 | 2012-12-20 | Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103012931A CN103012931A (en) | 2013-04-03 |
| CN103012931B true CN103012931B (en) | 2015-04-15 |
Family
ID=47962065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210555668.3A Active CN103012931B (en) | 2012-12-20 | 2012-12-20 | Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103012931B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092963A (en) * | 2018-01-31 | 2019-08-06 | 中国石油天然气股份有限公司 | Micro- cross-linked polyethylene pipe and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876706A (en) * | 2005-06-10 | 2006-12-13 | 上海高分子功能材料研究所 | Silane crosslinked polyethylene plastic for low shrinkage anti-crack tube and its preparation method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101904B (en) * | 2009-12-22 | 2012-07-04 | 上海新上化高分子材料有限公司 | Method for improving efficiency of producing organosilane cross-linked polyethylene by using solid phase one-step method |
| CN102443212B (en) * | 2011-09-16 | 2016-01-20 | 扬州罗兰新材料有限公司 | A kind of rapid silane cross-linked polyethylene special material and preparation method thereof |
-
2012
- 2012-12-20 CN CN201210555668.3A patent/CN103012931B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876706A (en) * | 2005-06-10 | 2006-12-13 | 上海高分子功能材料研究所 | Silane crosslinked polyethylene plastic for low shrinkage anti-crack tube and its preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103012931A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103360656B (en) | A kind of regenerated polythene composition and method of making the same | |
| CN102850650A (en) | Basalt fiber reinforced polypropylene composite material and preparation method thereof | |
| CN101851378B (en) | Extrusion grade ASA resin with easy processing and high apparent property and preparation method thereof | |
| CN104725717A (en) | Internal-pressure-resistant polypropylene pipe and preparation method thereof | |
| CN101875768B (en) | Antiaging glass fiber-reinforced polycarbonate composition and preparation method thereof | |
| CN101255247A (en) | Boiling-free silicane cross-linking polyolefin composition | |
| CN102030959B (en) | Silane cross-linked dynamically-vulcanized thermoplastic elastomer | |
| CN103772880A (en) | ABS/PET material for extrusion process and preparation method of ABS/PET material | |
| CN101979431A (en) | Organosilane crosslinked polyethylene film special material, preparation and application thereof | |
| CN107987273B (en) | Polyamide and preparation method and application thereof | |
| CN103772883A (en) | ABS/PBT material used by extrusion process and preparation method for ABS/PBT material | |
| CN103012931B (en) | Functional master-batch for organosilane crosslinked polyethylene pipe, and preparation method and application of functional master-batch | |
| CN105566898A (en) | Nano nylon 6 composite material | |
| CN105542449A (en) | Preparation method of nylon 6 nanocomposite material | |
| CN106479036A (en) | A kind of composite polyolefine material for melting lamination rapid shaping and preparation method thereof | |
| CN104530574A (en) | Polypropylene composition with stress cracking resistance and low temperature impact resistance and preparation method thereof | |
| CN103073797B (en) | High-performance nano crosslinked polypropylene composite material and preparation method thereof | |
| CN106589595A (en) | PP composite material and preparation method thereof | |
| CN107603031B (en) | TiO2/BaSO4Modified low-surface-energy self-lubricating polypropylene flat-wall reinforced IFB corrugated pipe and preparation method thereof | |
| CN107540935B (en) | Polypropylene reclaimed material composition and preparation method thereof | |
| CN111440398B (en) | Special material for ion-crosslinked polyvinyl chloride protection tube | |
| CN104910397A (en) | Method for preparing product by radiating grafted silane and crosslinking polypropylene | |
| CN104045899B (en) | There is superhigh molecular weight polyethylene material and its preparation method of processing fluidity | |
| CN1986589B (en) | Polypropylene resin with high melt strength and its preparing method | |
| CN104945766A (en) | Composite high polymer material for kitchen top plates and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200721 Address after: 317000 No. 6 Qianjiang South Road, Dayang Street, Linhai City, Taizhou City, Zhejiang Province Patentee after: Linhai Weixing New Building Materials Co.,Ltd. Address before: Boye Road Economic Development Zone coastal city Taizhou city Zhejiang province 317000 Patentee before: ZHEJIANG WEIXING NEW BUILDING MATERIALS Co.,Ltd. |