CN115594925A - Polyvinyl chloride waterproof coiled material and preparation method and application thereof - Google Patents

Polyvinyl chloride waterproof coiled material and preparation method and application thereof Download PDF

Info

Publication number
CN115594925A
CN115594925A CN202211214278.XA CN202211214278A CN115594925A CN 115594925 A CN115594925 A CN 115594925A CN 202211214278 A CN202211214278 A CN 202211214278A CN 115594925 A CN115594925 A CN 115594925A
Authority
CN
China
Prior art keywords
polyvinyl chloride
hydroxyapatite
stabilizer
weight
composition
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.)
Granted
Application number
CN202211214278.XA
Other languages
Chinese (zh)
Other versions
CN115594925B (en
Inventor
李仪
胡全超
黄海亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Keshun New Material Co ltd
Original Assignee
Fujian Keshun New Material Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Keshun New Material Co ltd filed Critical Fujian Keshun New Material Co ltd
Priority to CN202211214278.XA priority Critical patent/CN115594925B/en
Publication of CN115594925A publication Critical patent/CN115594925A/en
Application granted granted Critical
Publication of CN115594925B publication Critical patent/CN115594925B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C08K3/32—Phosphorus-containing compounds
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/132—Phenols containing keto groups, e.g. benzophenones
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3472—Five-membered rings
    • C08K5/3475—Five-membered rings condensed with carbocyclic rings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/665—Sheets or foils impervious to water and water vapor
    • 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
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/325—Calcium, strontium or barium phosphate
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0045—Composites
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2450/00—Gaskets
    • E02D2450/10—Membranes
    • E02D2450/105—Membranes impermeable
    • E02D2450/106—Membranes impermeable for liquids

Abstract

The invention relates to the field of waterproof coiled materials, and discloses a polyvinyl chloride waterproof coiled material and a preparation method and application thereof. The composition contains the following components which are stored independently or in a mixed way: polyvinyl chloride resin powder, hydroxyapatite, a plasticizer, a stabilizer and an ultraviolet absorbent. The polyvinyl chloride waterproof coiled material provided by the invention can block heavy metals, has good mechanical properties, is simple in preparation process and low in cost, and has good economic benefits.

Description

Polyvinyl chloride waterproof coiled material and preparation method and application thereof
Technical Field
The invention relates to the field of waterproof coiled materials, in particular to a polyvinyl chloride waterproof coiled material and a preparation method and application thereof.
Background
With the development of heavy industries such as mining and the like, more and more wastewater containing heavy metal ions such as chromium, lead, zinc, nickel and the like with higher concentration is generated. If the waste water is not treated, the waste water can directly enter underground water, so that the content of heavy metals in the surrounding living environment is increased and exceeds the normal range, and the human health is seriously influenced.
Hydroxyapatite is a main component of bones and teeth of human bodies and animals, and comprises calcium carbonate, apatite and a small amount of acid insoluble substances due to the unique crystal structure. Calcium ions in the hydroxyapatite can perform ion exchange reaction with heavy metal ions in the wastewater, so that the effect of adsorbing the heavy metal ions is achieved.
CN113263805A discloses a heavy metal blocking fiber net/high polymer composite waterproof roll and a preparation method thereof, and the designed roll comprises a modified polymer layer and three-dimensional fiber net layers arranged on the upper side and the lower side. The composite waterproof roll material provided by the prior art is complex in structure and complex in preparation process.
CN101613135A discloses a method for removing heavy metal ions in sewage by using nano hydroxyapatite, which is characterized in that the nano hydroxyapatite is added into the sewage containing the heavy metal ions to remove the heavy metal ions, the treatment efficiency is high, and the treatment cost is low.
In the prior art, geotextile and the like are mainly paved at the bottom to achieve the waterproof and anti-seepage effects, the heavy metal ions cannot be separated, and the waterproof coiled material capable of separating the heavy metal disclosed by the prior art is complex in structure, complex in preparation process and high in production cost.
Therefore, a waterproof roll material which can block heavy metals, has good mechanical properties, and is simple in preparation process and low in cost is needed.
Disclosure of Invention
The invention aims to overcome the defects of complex structure, complicated preparation process and high production cost of the waterproof roll material capable of blocking heavy metals in the prior art, and provides the waterproof roll material which can block heavy metals, has good mechanical property, simple preparation process and low cost.
In order to achieve the above object, the present invention provides a composition for preparing a polyvinyl chloride waterproofing membrane, which comprises the following components stored independently or in a mixture of two or more of:
polyvinyl chloride resin powder, hydroxyapatite, a plasticizer, a stabilizer and an ultraviolet absorbent;
the average polymerization degree of the polyvinyl chloride resin powder is 1000-1400;
the average particle size of the hydroxyapatite is 20-80nm;
in the composition, based on 100 parts by weight of the polyvinyl chloride resin powder, the content of the hydroxyapatite is 20-40 parts by weight, the content of the plasticizer is 30-50 parts by weight, the content of the stabilizer is 3-5 parts by weight, and the content of the ultraviolet absorbent is 0.1-0.5 part by weight.
In a second aspect, the present invention provides a method for preparing a polyvinyl chloride waterproofing membrane, which is carried out by using the components of the composition of the first aspect, comprising: and mixing polyvinyl chloride resin powder, hydroxyapatite, a stabilizer, an ultraviolet absorbent and a plasticizer, and then extruding and molding to obtain the polyvinyl chloride waterproof roll.
In a third aspect of the present invention, there is provided a roll of polyvinyl chloride waterproofing material obtained by the method of the second aspect.
The invention provides the application of the polyvinyl chloride waterproof roll material in the third aspect in building waterproof.
The polyvinyl chloride waterproof coiled material provided by the invention can block heavy metal ions, and has good mechanical properties and strong environmental adaptability.
The method for preparing the polyvinyl chloride waterproof roll is simple to operate, low in cost and good in economic benefit.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and these ranges or values should be understood to encompass values close to these ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
It should be noted that, in various aspects of the present invention, with respect to the same components or terms in various aspects, in order to avoid redundancy, the present invention is described only once in one aspect without repeated description, and those skilled in the art should not be construed as limiting the present invention.
The average particle size in the present invention means an average diameter.
As described above, the first aspect of the present invention provides a composition for preparing a polyvinyl chloride waterproofing membrane, which comprises the following components stored independently or in a mixture of two or more of:
polyvinyl chloride resin powder, hydroxyapatite, a plasticizer, a stabilizer and an ultraviolet absorbent;
the average polymerization degree of the polyvinyl chloride resin powder is 1000-1400;
the average particle size of the hydroxyapatite is 20-80nm;
in the composition, based on 100 parts by weight of the polyvinyl chloride resin powder, the content of the hydroxyapatite is 20-40 parts by weight, the content of the plasticizer is 30-50 parts by weight, the content of the stabilizer is 3-5 parts by weight, and the content of the ultraviolet absorbent is 0.1-0.5 part by weight.
Preferably, the polyvinyl chloride resin powder has an average polymerization degree of 1250-1350, and the inventor of the present invention finds that, under the preferable condition, the heavy metal barrier property, the mechanical property and the chemical property of the polyvinyl chloride waterproof coiled material prepared by the composition provided by the present invention can be further improved.
The average degree of polymerization in the present invention means a number average degree of polymerization, and the number average degree of polymerization means a degree of polymerization of a polymer expressed by the number of structural units.
Preferably, the average particle size of the hydroxyapatite is 60 to 80nm. The inventor of the invention finds that under the preferable condition, the heavy metal barrier property, the mechanical property and the chemical property of the polyvinyl chloride waterproof coiled material prepared from the composition provided by the invention can be further improved.
Preferably, the plasticizer is at least one selected from the group consisting of dioctyl phthalate, dioctyl terephthalate, trioctyl trimellitate, and epoxidized soybean oil.
Preferably, the stabilizer is selected from at least one of calcium zinc stabilizer, barium zinc stabilizer.
More preferably, the stabilizer is a calcium zinc stabilizer.
Preferably, the ultraviolet absorber is a benzophenone and/or a benzotriazole.
More preferably, the ultraviolet absorber is at least one selected from the group consisting of 2-hydroxy-4-n-octoxybenzophenone (UV-531), 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, and 2'- (2' -hydroxy-3 '-tert-butyl-5' -methylphenyl) -5-chlorobenzotriazole (UV-326).
As mentioned above, the second aspect of the present invention provides a method for preparing a pvc waterproofing membrane by using the components of the composition of the first aspect, comprising: and mixing polyvinyl chloride resin powder, hydroxyapatite, a stabilizer, an ultraviolet absorbent and a plasticizer, and then extruding and molding to obtain the polyvinyl chloride waterproof roll.
According to a preferred embodiment, the mixing conditions are at least such that: the temperature is 100-120 ℃.
It should be noted that the present invention has no special requirement on the specific mode of mixing, and the components can be mixed uniformly, and those skilled in the art can operate by adopting the conventional technical means in the field, for example, the mixing is carried out by adopting the stirring form of a high speed stirrer, and the stirring is carried out for 10-15min under the condition of 300-400 rpm.
According to another preferred embodiment, the temperature of the extrusion is 150 to 170 ℃.
It should be noted that the present invention does not specifically limit the equipment or manner used for the extrusion molding, and those skilled in the art can operate the extrusion molding by using the conventional technical means in the field, and the present invention exemplarily provides a specific embodiment hereinafter, and exemplarily, the extrusion molding is performed by using a twin-screw extruder.
As mentioned above, the third aspect of the present invention provides a roll of polyvinyl chloride waterproofing material produced by the method of the second aspect.
As mentioned above, the fourth aspect of the present invention provides the use of the roll of polyvinyl chloride waterproofing material according to the third aspect in waterproofing buildings.
The present invention will be described in detail below by way of examples. In the following examples, the raw materials used are all common commercial products unless otherwise specified.
The source of the raw materials is shown in table 1:
TABLE 1
Figure BDA0003875674350000051
In the following examples, each "part" or each "part by weight" means 100g unless otherwise specified.
A high-speed stirrer: model number SHR-500, available from Wo Rui Si machinery, inc., suzhou;
a double-screw extruder: model number SY 6217-AS, available from precision instruments Inc. of Dongguan.
Example 1
Adding polyvinyl chloride resin powder, hydroxyapatite, a stabilizer, an ultraviolet absorbent and a plasticizer into a high-speed mixer for mixing, and performing extrusion molding by adopting a double-screw extruder to obtain the polyvinyl chloride waterproof roll named as J1.
The amounts of the respective components, the stirring speed, the stirring time, the stirring temperature, the extrusion molding temperature and the like are shown in Table 2.
Examples 2-5 were carried out using a similar procedure to example 1, except that: the formula and production process parameters of the adopted polyvinyl chloride waterproof roll are different, and the polyvinyl chloride waterproof roll is prepared, and the specific reference is made in table 2.
Example 6
This example was carried out using a similar procedure to example 1, except that: the PVC-I obtained in example 1 was replaced with an equal weight of PVC-II to prepare a polyvinyl chloride waterproof roll named J6.
Example 7
This example was carried out using a similar procedure to example 1, except that: the hydroxyapatite I in example 1 was replaced with an equal weight of hydroxyapatite II to prepare a polyvinyl chloride waterproof roll named J7.
Comparative example 1
This comparative example was carried out using a similar procedure to example 1, except that: the PVC-I in the example 1 is replaced by PVC-III with equal weight to prepare the polyvinyl chloride waterproof roll named DJ1.
Comparative example 2
This comparative example was carried out using a similar procedure to example 1, except that: the hydroxyapatite I in the example 1 is replaced by hydroxyapatite III with the same weight, and the polyvinyl chloride waterproof roll is prepared and named as DJ2.
Comparative example 3
This comparative example was carried out using a similar procedure to example 1, except that: the hydroxyapatite I in the example 1 is replaced by light calcium carbonate with equal weight to prepare the polyvinyl chloride waterproof roll named DJ3.
Comparative example 4
This comparative example was carried out using a similar procedure to example 1, except that: the hydroxyapatite I in example 1 was replaced with diatomaceous earth of the same weight to prepare a polyvinyl chloride waterproof roll named DJ4.
TABLE 2
Figure BDA0003875674350000071
Figure BDA0003875674350000081
TABLE 2
Figure BDA0003875674350000082
Test example
The tensile strength, elongation at break and acid and alkali resistance of the waterproof roll prepared in each example were measured according to the standard/method of GB 12952-2011 "waterproof roll of polyvinyl chloride (PVC)".
The method for measuring the heavy metal adsorption rate comprises the following steps: soaking the waterproof coiled material prepared in each example in a heavy metal solution with the concentration of heavy metal ions of 20mg/L, standing at room temperature for 12 hours, and measuring the concentration of the heavy metal ions in the heavy metal solution after the waterproof coiled material is soaked; the weight ratio of the waterproof coiled material to the heavy metal solution is 1:20; measuring the concentration of heavy metal ions in the heavy metal solution by adopting an inductively coupled plasma emission spectrometer (ICP);
heavy metal adsorption rate = (c 1-c 2)/c 1 × 100%.
c1: the concentration of heavy metal ions in the heavy metal solution before the waterproof coiled material is soaked is mg/L;
c2: and the concentration of heavy metal ions in the heavy metal solution after the waterproof coiled material is soaked is mg/L.
TABLE 3
Figure BDA0003875674350000091
As can be seen from the results in table 3, the polyvinyl chloride waterproof roll prepared by the technical scheme provided by the invention has higher tensile strength and elongation at break, good acid and alkali resistance and strong environmental adaptability, and can further improve the adsorption rate of the waterproof roll to heavy metal ions.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.

Claims (10)

1. The composition for preparing the polyvinyl chloride waterproof coiled material is characterized by comprising the following components which are stored independently or in a mixed manner:
polyvinyl chloride resin powder, hydroxyapatite, a plasticizer, a stabilizer and an ultraviolet absorbent;
the average polymerization degree of the polyvinyl chloride resin powder is 1000-1400;
the average particle size of the hydroxyapatite is 20-80nm;
in the composition, based on 100 parts by weight of the polyvinyl chloride resin powder, the content of the hydroxyapatite is 20-40 parts by weight, the content of the plasticizer is 30-50 parts by weight, the content of the stabilizer is 3-5 parts by weight, and the content of the ultraviolet absorbent is 0.1-0.5 part by weight.
2. The composition as claimed in claim 1, wherein the polyvinyl chloride resin powder has an average polymerization degree of 1250 to 1350.
3. The composition according to claim 1 or 2, wherein the hydroxyapatite has an average particle size of 60-80nm.
4. The composition of any of claims 1-3, wherein the plasticizer is selected from at least one of dioctyl phthalate, dioctyl terephthalate, trioctyl trimellitate, and epoxidized soybean oil.
5. The composition of any one of claims 1-4, wherein the stabilizer is selected from at least one of a calcium zinc stabilizer, a barium zinc stabilizer;
the ultraviolet absorbent is benzophenone and/or benzotriazole.
6. A process for the preparation of rolls of waterproof polyvinyl chloride material, characterized in that it is carried out using the components of the composition according to any one of claims 1 to 5, comprising: and mixing polyvinyl chloride resin powder, hydroxyapatite, a stabilizer, an ultraviolet absorbent and a plasticizer, and then extruding and molding to obtain the polyvinyl chloride waterproof roll.
7. The method of claim 6, wherein the mixing is conditioned to at least: the temperature is 100-120 ℃.
8. The method according to claim 6 or 7, wherein the temperature of the extrusion molding is 150-170 ℃.
9. A roll for waterproofing of polyvinyl chloride produced by the method of any one of claims 6 to 8.
10. Use of the roll for waterproofing of polyvinyl chloride according to claim 9 for waterproofing of buildings.
CN202211214278.XA 2022-09-30 2022-09-30 Polyvinyl chloride waterproof coiled material and preparation method and application thereof Active CN115594925B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211214278.XA CN115594925B (en) 2022-09-30 2022-09-30 Polyvinyl chloride waterproof coiled material and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211214278.XA CN115594925B (en) 2022-09-30 2022-09-30 Polyvinyl chloride waterproof coiled material and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN115594925A true CN115594925A (en) 2023-01-13
CN115594925B CN115594925B (en) 2024-01-26

Family

ID=84844185

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211214278.XA Active CN115594925B (en) 2022-09-30 2022-09-30 Polyvinyl chloride waterproof coiled material and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN115594925B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101613135A (en) * 2009-07-20 2009-12-30 中国农业科学院农业资源与农业区划研究所 A kind of method of utilizing nanometer hydroxyapatite to remove heavy metal ion in the sewage
JP2017113970A (en) * 2015-12-24 2017-06-29 平岡織染株式会社 Resin composition for tent structure film material
CN108359192A (en) * 2018-03-02 2018-08-03 付主枝 A kind of preparation method and applications of medical rubber-plastic composite material
CN108976664A (en) * 2018-07-20 2018-12-11 王晚秀 A kind of food fresh keeping preparation method for packing membrane material
CN112250909A (en) * 2020-10-30 2021-01-22 深圳市志海实业股份有限公司 Calcium-zinc stabilizer for improving transparency and strength of PVC (polyvinyl chloride) and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101613135A (en) * 2009-07-20 2009-12-30 中国农业科学院农业资源与农业区划研究所 A kind of method of utilizing nanometer hydroxyapatite to remove heavy metal ion in the sewage
JP2017113970A (en) * 2015-12-24 2017-06-29 平岡織染株式会社 Resin composition for tent structure film material
CN108359192A (en) * 2018-03-02 2018-08-03 付主枝 A kind of preparation method and applications of medical rubber-plastic composite material
CN108976664A (en) * 2018-07-20 2018-12-11 王晚秀 A kind of food fresh keeping preparation method for packing membrane material
CN112250909A (en) * 2020-10-30 2021-01-22 深圳市志海实业股份有限公司 Calcium-zinc stabilizer for improving transparency and strength of PVC (polyvinyl chloride) and preparation method thereof

Also Published As

Publication number Publication date
CN115594925B (en) 2024-01-26

Similar Documents

Publication Publication Date Title
CN105148833B (en) A kind of compound diatomite adsorbant of modification and preparation method for handling industrial wastewater
CN102151491B (en) Modified polyvinyl chloride alloy ultra-filtration membrane and preparation method of hollow fiber ultra-filtration membrane
CN101735533A (en) Environmentally-friendly antibacterial polyvinyl chloride composite material and preparation method thereof
JP2007530727A (en) Vinyl chloride resin composition and method for producing the same
EP1666131B1 (en) Pvc hollow filtration membrane and the preparation method thereof
WO2011113423A1 (en) Multi-phase bacterially-synthesized-nanocellulose biomaterials and method for producing same
CN101024325A (en) Technology for preparing high-separation, low solvent residue and low resolving-out matter PVC/PE/PVCD solid medicinal composite hard sheet
CN111234691A (en) Antibacterial and mildew-proof coating with good weather resistance
CN110813246B (en) Nano-pore starch-based adsorbent and preparation method thereof
CN115594925A (en) Polyvinyl chloride waterproof coiled material and preparation method and application thereof
DE60118340T2 (en) HALOGENIC POLYMER COMPOUNDS CONTAINING MODIFIED ZEOLITE STABILIZERS
DE2817344C2 (en)
EP3180112A1 (en) Method for producing antifouling coatings made of thin-layer composite membranes for reverse osmosis and nanofiltration, such thin-layer composite membranes, and the use thereof
CN107828158A (en) A kind of medical tube with flame-proof antibiotic function and preparation method thereof
KR101033830B1 (en) Method for manufacturing resin pipe improved weather proof property
CN108530655A (en) A kind of antibacterial plastic concentrate and preparation method for antibiotic plastic
CN102941720A (en) Novel antibacterial film
CN113930028A (en) Anti-sticking material, medical equipment containing the same and contacting blood and manufacturing method thereof
CA1046724A (en) Porous diaphragms
KR101033829B1 (en) Method for manufacturing resin pipe improved weather proof and tensile strength property
WO2021077290A1 (en) Nanopore starch-based adsorbent and preparation method therefor
CN110343321A (en) A kind of PVC calcium-zinc composite stabilizing agent and its technological process of production
KR101038648B1 (en) Method of manufacturing resin pipe improved heat resistant property, and resin pipe produced thereby
CN1204077C (en) Fire-resistant, water-proof, corrosion-resistant and anti-electrostatic glazed decoration board and preparation process thereof
CN1137209C (en) Plastic material without environmental pollution

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant