CN108948761A - A kind of lignin/PVC fretting map composite material and preparation method thereof - Google Patents
A kind of lignin/PVC fretting map composite material and preparation method thereof Download PDFInfo
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- CN108948761A CN108948761A CN201710353064.3A CN201710353064A CN108948761A CN 108948761 A CN108948761 A CN 108948761A CN 201710353064 A CN201710353064 A CN 201710353064A CN 108948761 A CN108948761 A CN 108948761A
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Abstract
The invention discloses a kind of lignin/PVC fretting map composite materials, component including following parts by weight: 40-70 parts of PVC, 20-50 parts of lignin, 10-40 parts of inorganic mineral, 1-10 parts of impact modifier, 0.5-1.5 parts of balanced type foaming agent, 2-5 parts of calcium-zinc composite stabilizing agent, 0.2-1 parts of PE wax, 0.2-1 parts of stearic acid.Lignin of the present invention/PVC fretting map composite material, by lignin in papermaking wastewater, waste utilization reduces cost；Meanwhile using balanced type foaming agent, the Surface of profile being prepared is smooth, and cell size is uniform, and density is low, and mechanical property is preferable.
Description
Technical field
The present invention relates to a kind of PVC fretting map composite material more particularly to a kind of lignin/PVC fretting map composite materials
And preparation method thereof.
Background technique
PVC fretting map composite material is after adding various fillers and function additive by polyvinyl chloride resin, to mix by batch mixer
Afterwards, the product of high-temperature fusion extrusion molding.PVC fretting map composite material is mainly used in indoor building materials direction at present, such as indoor
Door and window, floor, skirting, door pocket etc..But PVC fretting map profile, there are still rough, foaming is uneven, than great,
The features such as intensity is low, poor toughness.
According to statistics, it is still used as the waste of industrial slurrying presently more than 95% lignin, is directly discharged into rivers with waste water
Or concentration after-burning burn-up, the discharge of pulp-making waste-water not only causes the waste of resource, while polluting environment again, carries out to it very well
Resource utilization there is the meaning of reality to the development and environmental protection of social economy.
Balanced type foaming agent is Process of absorption or liberation of heat balanced type foaming agent, inhale in decomposition reaction put, hot in a basic balance, process of getting angry
Induction period is short, decomposes without mutation, the product of extrusion has preferable foam structure, lower density and higher bending resistance strong
Degree.Cost, but also the foaming product good combination property produced can be not only reduced using the balanced type foaming agent.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of lignin/PVC foam composite materials, sufficiently benefit
With the lignin in papermaking wastewater, turn waste into wealth；In addition balanced type foaming agent is used, obtained lignin/PVC fretting map is compound
Uniform in foaming inside profile, specific gravity is small, and mechanical property is improved.
To achieve the above object, the invention adopts the following technical scheme:
The first aspect of the invention is to provide a kind of lignin/PVC fretting map composite material, including following parts by weight
Component: 40-70 parts of PVC, 20-50 parts of lignin, 10-40 parts of inorganic mineral, 1-10 parts of impact modifier, balanced type hair
0.5-1.5 parts of infusion, 2-5 parts of calcium-zinc composite stabilizing agent, 0.2-1 parts of PE wax, 0.2-1 parts of stearic acid.PVC type comprising the component
Material surface is smooth, and cell size is uniform, and density is low, and toughness, intensity are high, low in cost.
Further, in the lignin/PVC fretting map composite material, the component including following parts by weight:
50-60 parts of PVC, 30-40 parts of lignin, 20-30 parts of inorganic mineral, 3-8 parts of impact modifier, balanced type foaming agent 0.8-
1.2 parts, 3-4 parts of calcium-zinc composite stabilizing agent, 0.4-0.7 parts of PE wax, 0.4-0.7 parts of stearic acid.
It is further preferred that in the lignin/PVC fretting map composite material, the group including following parts by weight
Point: 40-70 parts of PVC, 20-50 parts of lignin, 10-40 parts of inorganic mineral, 1-10 parts of impact modifier, balanced type foaming agent
0.5-1.5 parts, 2-5 parts of calcium-zinc composite stabilizing agent, 0.2-1 parts of PE wax, 0.2-1 parts of stearic acid.
It is further preferred that the lignin is black from papermaking in the lignin/PVC fretting map composite material
The high-purity lignin extracted in liquid.
It is further preferred that the inorganic mineral is carbonic acid in the lignin/PVC fretting map composite material
One of calcium, calcium silicates, talcum powder, glass fiber powder or a variety of mixtures.
It is further preferred that the modified additive is poly- for chlorination in the lignin/PVC fretting map composite material
Ethylene (CPE), acrylic polymer (ACR), methyl methacrylate-butadiene-styrol copolymer (MBS), benzene
Ethylene-butadiene-styrene ternary block polymer (SBS), Acrylonitrile-butadiene-styrene Copolymer (ABS), second
One of alkene-acetate ethylene copolymer (EVA) or a variety of mixtures.
It is further preferred that in the lignin/PVC fretting map composite material, the balanced type foaming agent is
NH213。
The second aspect of the invention is to provide a kind of preparation method of the lignin/PVC fretting map composite material, tool
Body includes the following steps:
(1) by the lignin drying and crushing, sieving in black liquid, obtaining mesh number is 50 mesh~200 mesh lignin
Powder；
(2) PVC, calcium-zinc composite stabilizing agent are added in high mixer in proportion, mixed at high speed adds PE to 80-92 DEG C
Wax, stearic acid and impact-resistant modified auxiliary agent, are mixed into 95-105 DEG C, are eventually adding lignin powder, balanced type foaming agent, inorganic mineral
Matter, mixing to temperature is 110-130 DEG C, and material is put into cooling in cold mixing pot rapidly, is cooled to 30~50 DEG C or so, is obtained just
Mixed material；
(3) first mixed material is added in conical double screw extruder, an one-step extrusion molding obtains the micro- hair of lignin/PVC
Steep composite material.
Further, in the lignin/PVC fretting map composite material preparation method, the step (2) is in proportion
PVC, calcium-zinc composite stabilizing agent are added in high mixer, mixed at high speed is to 88-90 DEG C.
Further, in the lignin/PVC fretting map composite material preparation method, PE is added in the step (2)
Wax, stearic acid and impact-resistant modified auxiliary agent, are mixed into 98-102 DEG C.
Further, in the lignin/PVC fretting map composite material preparation method, wood is added in the step (2)
Quality powder, balanced type foaming agent, inorganic mineral, mixing to temperature is 115-125 DEG C, is rapidly put into material cold in cold mixing pot
But, 40~45 DEG C are cooled to.
The present invention by adopting the above technical scheme, compared with prior art, has the following technical effect that
Lignin prepared by the present invention/PVC fretting map composite material, by lignin in papermaking wastewater, waste utilization is reduced
Cost；Meanwhile the present invention uses balanced type foaming agent, the Surface of profile being prepared is smooth, and cell size is uniform, and density is low,
And mechanical property is preferable.
Specific embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
The preparation of 1 lignin of embodiment/PVC fretting map composite material
(1) be made of the raw material of following mass fraction: 70 parts of polyvinyl chloride resin, 10 parts of lignin, 40 parts of calcium carbonate, chlorination are poly-
5 parts of ethylene (CPE), 1 part of balanced type foaming agent (NH213), 2 parts of calcium-zinc composite stabilizing agent, 0.2 part of PE wax, 0.2 part of stearic acid.
Balanced type foaming agent described in the present embodiment is the balanced type foaming agent of Shanghai Jie Shangjie Chemical Co., Ltd. production and sales
NH213。
(2) the present embodiment lignin/PVC fretting map composite material preparation step includes:
(1) by the lignin drying and crushing, sieving in black liquid, the lignin powder that mesh number is 100 mesh is obtained；
(2) in proportion by PVC, calcium-zinc composite stabilizing agent be added high mixer in, mixed at high speed to 90 DEG C, add PE wax,
Stearic acid and impact-resistant modified auxiliary agent, are mixed into 100 DEG C, are eventually adding lignin, balanced type foaming agent, and mixing to temperature is 120
DEG C, material is put into cooling in cold mixing pot rapidly, is cooled to 40 DEG C or so, obtains just mixed material；
(3) first mixed material is added in conical double screw extruder, an one-step extrusion molding obtains the micro- hair of lignin/PVC
Steep composite material.
The preparation of 2 lignin of embodiment/PVC fretting map composite material
(1) be made of the raw material of following mass fraction: 70 parts of polyvinyl chloride resin, 15 parts of lignin, 40 parts of calcium carbonate, chlorination are poly-
5 parts of ethylene (CPE), 1 part of balanced type foaming agent (NH213), 2 parts of calcium-zinc composite stabilizing agent, 0.2 part of PE wax, 0.2 part of stearic acid.
Balanced type foaming agent described in the present embodiment is the balanced type foaming agent of Shanghai Jie Shangjie Chemical Co., Ltd. production and sales
NH213。
(2) the present embodiment lignin/PVC fretting map composite material preparation step includes:
(1) by the lignin drying and crushing, sieving in black liquid, the lignin powder that mesh number is 100 mesh is obtained；
(2) in proportion by PVC, calcium-zinc composite stabilizing agent be added high mixer in, mixed at high speed to 90 DEG C, add PE wax,
Stearic acid and impact-resistant modified auxiliary agent, are mixed into 100 DEG C, are eventually adding lignin, balanced type foaming agent, and mixing to temperature is 120
DEG C, material is put into cooling in cold mixing pot rapidly, is cooled to 40 DEG C or so, obtains just mixed material；
(3) first mixed material is added in conical double screw extruder, an one-step extrusion molding obtains the micro- hair of lignin/PVC
Steep composite material.
The preparation of 3 lignin of embodiment/PVC fretting map composite material
(1) be made of the raw material of following mass fraction: 70 parts of polyvinyl chloride resin, 20 parts of lignin, 40 parts of calcium carbonate, chlorination are poly-
5 parts of ethylene (CPE), 1 part of balanced type foaming agent (NH213), 2 parts of calcium-zinc composite stabilizing agent, 0.2 part of PE wax, 0.2 part of stearic acid.
Balanced type foaming agent described in the present embodiment is the balanced type foaming agent of Shanghai Jie Shangjie Chemical Co., Ltd. production and sales
NH213。
(2) the present embodiment lignin/PVC fretting map composite material preparation step includes:
(1) by the lignin drying and crushing, sieving in black liquid, the lignin powder that mesh number is 100 mesh is obtained；
(2) in proportion by PVC, calcium-zinc composite stabilizing agent be added high mixer in, mixed at high speed to 90 DEG C, add PE wax,
Stearic acid and impact-resistant modified auxiliary agent, are mixed into 100 DEG C, are eventually adding lignin, balanced type foaming agent, and mixing to temperature is 120
DEG C, material is put into cooling in cold mixing pot rapidly, is cooled to 40 DEG C or so, obtains just mixed material；
(3) first mixed material is added in conical double screw extruder, an one-step extrusion molding obtains the micro- hair of lignin/PVC
Steep composite material.
The preparation of 4 lignin of embodiment/PVC fretting map composite material
(1) be made of the raw material of following mass fraction: 70 parts of polyvinyl chloride resin, 25 parts of lignin, 40 parts of calcium carbonate, chlorination are poly-
5 parts of ethylene (CPE), 1 part of balanced type foaming agent (NH213), 2 parts of calcium-zinc composite stabilizing agent, 0.2 part of PE wax, 0.2 part of stearic acid.
Balanced type foaming agent described in the present embodiment is the balanced type foaming agent of Shanghai Jie Shangjie Chemical Co., Ltd. production and sales
NH213。
(2) the present embodiment lignin/PVC fretting map composite material preparation step includes:
(1) by the lignin drying and crushing, sieving in black liquid, the lignin powder that mesh number is 100 mesh is obtained；
(2) in proportion by PVC, calcium-zinc composite stabilizing agent be added high mixer in, mixed at high speed to 90 DEG C, add PE wax,
Stearic acid and impact-resistant modified auxiliary agent, are mixed into 100 DEG C, are eventually adding lignin, balanced type foaming agent, and mixing to temperature is 120
DEG C, material is put into cooling in cold mixing pot rapidly, is cooled to 40 DEG C or so, obtains just mixed material；
(3) first mixed material is added in conical double screw extruder, an one-step extrusion molding obtains the micro- hair of lignin/PVC
Steep composite material.
Comparative example is using commercially available PVC fretting map composite material as comparative example.
Performance test:
It is micro- with commercially available PVC using lignin made from the embodiment of the present invention 1~4/PVC fretting map composite material as test example
Foaming composite material is comparative example, carries out related mechanical properties test respectively, and specific test performance is as shown in Table 1:
One embodiment 1-4 of table and comparative example performance test data
As above-mentioned test data it is found that lignin made from 1-4 of the embodiment of the present invention/PVC fretting map composite material is opposite
Existing commercially available PVC fretting map composite material, averag density 1.026g/cm3, it is lower than existing commercially available PVC fretting map composite material
Density 1.267g/cm3；And the lignin of 1-4 of the embodiment of the present invention/PVC fretting map composite material tensile strength and nothing
Notch impact strength is all larger than existing commercially available PVC fretting map composite material, has preferable mechanical property.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and
Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and
Modification, all should be contained within the scope of the invention.
Claims (9)
1. a kind of lignin/PVC fretting map composite material, which is characterized in that the component including following parts by weight: PVC 40-
70 parts, 20-50 parts of lignin, 10-40 parts of inorganic mineral, 1-10 parts of impact modifier, 0.5-1.5 parts of balanced type foaming agent,
2-5 parts of calcium-zinc composite stabilizing agent, 0.2-1 parts of PE wax, 0.2-1 parts of stearic acid.
2. lignin according to claim 1/PVC fretting map composite material, which is characterized in that the lignin is from making
The high-purity lignin extracted in paper black liquor.
3. lignin according to claim 1/PVC fretting map composite material, which is characterized in that the inorganic mineral is
One of calcium carbonate, calcium silicates, talcum powder, glass fiber powder or a variety of mixtures.
4. lignin according to claim 1/PVC fretting map composite material, which is characterized in that the impact modifier is
Haloflex (CPE), acrylic polymer (ACR), methyl methacrylate-butadiene-styrol copolymer
(MBS), styrene-butadiene-styrene ternary block copolymer (SBS), Acrylonitrile-butadiene-styrene Copolymer
(ABS), one of ethylene-acetate ethylene copolymer (EVA) or a variety of mixtures.
5. lignin according to claim 1/PVC fretting map composite material, which is characterized in that the balanced type foaming agent
For NH213.
6. a kind of lignin/PVC fretting map composite material preparation method, feature as described in claim any one of 1-5 exists
In including the following steps:
(1) by the lignin drying and crushing, sieving in black liquid, obtaining mesh number is 50 mesh~200 mesh lignin powder；
(2) in proportion by PVC, calcium-zinc composite stabilizing agent be added high mixer in, mixed at high speed to 80-92 DEG C, add PE wax, firmly
Resin acid and impact-resistant modified auxiliary agent, are mixed into 95-105 DEG C, are eventually adding lignin powder, balanced type foaming agent, inorganic mineral, mix
Being bonded to temperature is 110-130 DEG C, and material is put into cooling in cold mixing pot rapidly, is cooled to 30~50 DEG C or so, obtains just mixed object
Material；
(3) first mixed material is added in conical double screw extruder, it is multiple that an one-step extrusion molding obtains lignin/PVC fretting map
Profile material.
7. lignin/PVC fretting map composite material preparation method according to claim 6, which is characterized in that the step
(2) PVC, calcium-zinc composite stabilizing agent are added in high mixer in proportion, mixed at high speed is to 88-90 DEG C.
8. lignin/PVC fretting map composite material preparation method according to claim 6, which is characterized in that the step
(2) PE wax, stearic acid and impact-resistant modified auxiliary agent is added, is mixed into 98-102 DEG C.
9. lignin/PVC fretting map composite material preparation method according to claim 6, which is characterized in that the step
(2) lignin powder, balanced type foaming agent, inorganic mineral is added, mixing to temperature is 115-125 DEG C, is rapidly put into material
It is cooling in cold mixing pot, it is cooled to 40~45 DEG C.
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Cited By (6)
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| CN109694531A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of PVC/ papermaking waste fretting map composite material and preparation method |
| CN109762227A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of papermaking waste/PE flame retardant composite material and preparation method thereof |
| CN109762309A (en) * | 2018-12-21 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of degradable chemical blowing master batch and preparation method thereof |
| CN109762267A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of papermaking waste/PVC composite material |
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| CN111269501A (en) * | 2020-02-12 | 2020-06-12 | 上海昶法新材料有限公司 | PVC micro-foaming section bar, raw material, preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109694531A (en) * | 2018-12-20 | 2019-04-30 | 上海昶法新材料有限公司 | A kind of PVC/ papermaking waste fretting map composite material and preparation method |
| CN109762227A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of papermaking waste/PE flame retardant composite material and preparation method thereof |
| CN109762267A (en) * | 2018-12-20 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of papermaking waste/PVC composite material |
| CN109762267B (en) * | 2018-12-20 | 2021-09-03 | 上海昶法新材料有限公司 | Papermaking waste/PVC composite material |
| CN109762309A (en) * | 2018-12-21 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of degradable chemical blowing master batch and preparation method thereof |
| CN109762268A (en) * | 2018-12-29 | 2019-05-17 | 上海昶法新材料有限公司 | A kind of papermaking by-product reinforced polyvinyl chloride material and preparation method thereof |
| CN111269501A (en) * | 2020-02-12 | 2020-06-12 | 上海昶法新材料有限公司 | PVC micro-foaming section bar, raw material, preparation method and application thereof |
| CN111269501B (en) * | 2020-02-12 | 2022-05-24 | 上海昶法新材料有限公司 | PVC micro-foaming section bar, raw material, preparation method and application thereof |
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Application publication date: 20181207 |