CN112142933A - Polyether-ether-ketone resin containing beta-diketone structure and application thereof in anti-aging PVC (polyvinyl chloride) plate - Google Patents
Polyether-ether-ketone resin containing beta-diketone structure and application thereof in anti-aging PVC (polyvinyl chloride) plate Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/02—Condensation polymers of aldehydes or ketones with phenols only of ketones
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention relates to a polyether-ether-ketone resin containing a beta-diketone structure, which comprises the following synthetic methods: adding dihydric phenol, 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, weak base, dipolar solvent and low-boiling point solvent into a reactor under the condition of introducing nitrogen, heating to 120-plus-140 ℃ under stirring, removing water, carrying out heat preservation reaction for 1-2h, then discharging the low-boiling point solvent, heating the reaction system to 185-plus-140 ℃, carrying out heat preservation polymerization for 3-5h, cooling to room temperature, adding methanol into the system, filtering and precipitating, repeatedly washing with deionized water and ethanol, finally drying at 50 ℃ for 24h, and grinding and crushing to obtain the product. The anti-aging PVC plate made of the polyether ether ketone resin containing the beta-diketone structure has better flexural strength, flame retardance, chemical corrosion resistance and high temperature resistance.
Description
Technical Field
The invention relates to a structure of a partition wall or an isolation wall of a common building, in particular to polyether ether ketone resin containing a beta-diketone structure and application thereof in an anti-aging PVC (polyvinyl chloride) plate, belonging to the field of building plates.
Background
PVC composite panels can be used for building forms and interior trim panels, for which the PVC composite panel typically includes a middle layer and a two-layer surface decorative layer. The middle layer is made of wood plastic, the structure of the decorative layer comprises a carrier plate layer and pattern stickers, and decorative patterns and patterns, such as wood grain imitation, marble grain imitation and the like, are changed by changing the stickers so as to increase the ornamental value of the decorative plate. In the existing process for manufacturing the PVC composite board, an extruder is used for molding an intermediate layer, then a decorative layer is attached to the surface of the intermediate layer, and the combination of the decorative layer and the intermediate layer can be realized through glue or hot printing. After the PVC composite board is used for a period of time, the decorative layer is easy to foam, and the combination of the decorative layer and the middle layer can crack, so that the ornamental value of the PVC composite board is seriously influenced. Therefore, it is desired to solve the above technical problems.
Chinese patent CN201510479359.6 discloses a PVC base material, a preparation method thereof and a PVC composite board, wherein the PVC base material comprises the following raw materials in parts by weight: PVC60-80 parts, heavy sodium carbonate, 3-10 parts of stabilizer, 0.5-2 parts of balanced lubricant, 0.5-2 parts of foaming agent and 5-10 parts of foaming regulator; wherein, the PVC comprises SG-5 type PVC and SG-8 type PVC, and the weight portion ratio of the PVC to the heavy sodium carbonate is 1: 1-1.3. The PVC composite board comprises a PVC base material and a semi-rigid PVC layer positioned on the surface of the base material. The PVC base material has the advantages of good continuous extrusion production capacity in production, continuous and stable properties of the obtained base material, very good tensile strength and impact strength of the base material and small size shrinkage rate. Compared with the existing products, the PVC composite board has higher mechanical strength and longer service life, but the PVC composite board has the defects of poor high-temperature resistance and poor acid-base corrosion resistance.
The polyether ether ketone is a high polymer formed by a repeating unit containing two ketone bonds and two ether bonds in a main chain structure, belongs to a special high polymer material, and has physical and chemical properties of high temperature resistance, high flame retardance, chemical corrosion resistance and the like. The invention aims to apply the modified polyether-ether-ketone with a special structure to the PVC plate to improve the flame retardance, the chemical corrosion resistance and the high temperature resistance of the PVC plate.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide an anti-aging PVC plate based on polyether ether ketone resin with a beta-diketone structure.
In order to overcome the defects of the prior art, the invention provides the following technical scheme: an anti-aging PVC plate based on polyether-ether-ketone resin with a beta-diketone structure is characterized by comprising the following components in parts by weight: 80-100 parts of PVC resin powder, 15-25 parts of polyether ether ketone resin containing a beta-diketone structure, 0.5-0.8 part of calcium-zinc macromolecular composite stabilizer, 2-5 parts of powdery titanate coupling agent and 20-40 parts of inorganic filler.
The calcium-zinc macromolecular composite stabilizer is at least one of calcium stearate, zinc stearate, calcium linoleate, calcium-zinc linoleate, calcium oleate and zinc oleate.
The main component of the PVC resin powder is polyvinyl chloride, which is a vinyl polymer and can be directly purchased from the market.
The powder type titanate coupling agent is divided into four types according to the structure: monoalkoxy type, monoalkoxy pyrophosphate type, integral type, and ligand type. Wherein, the structural formula of the monoalkoxy coupling agent is as follows: RO-Ti (OX-R-Y) 3. The powder titanate coupling agent is preferably triisostearoyl isopropyl titanate (TTS), and can be directly purchased from the market.
The filler is at least one of magnesium aluminum silicate, calcium silicate, barium sulfate and titanium dioxide.
The structural formula of the polyether ether ketone resin containing the beta-diketone structure is shown in the specification (wherein R is alkyl or aromatic group, and n is 80-200):
the synthesis method of the polyether ether ketone resin containing the beta-diketone structure comprises the following steps: according to the weight portion, under the condition of introducing nitrogen, adding dihydric phenol, 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, weak base, dipolar solvent and low boiling point solvent into a reactor, heating to 120-plus-140 ℃ under stirring, removing water, carrying out heat preservation reaction for 1-2h, then discharging the low boiling point solvent, heating the reaction system to 185-plus-one temperature of 195 ℃, carrying out heat preservation polymerization for 3-5h, cooling to room temperature, adding methanol into the system, filtering, precipitating, repeatedly washing with deionized water and ethanol, finally drying at 50 ℃ for 24h, grinding and crushing to obtain the product.
Furthermore, the synthesis method of the polyether ether ketone resin containing the beta-diketone structure comprises the following steps: under the condition of introducing nitrogen, adding 12-20 parts of dihydric phenol, 10-15 parts of 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, 6-8 parts of weak base, 60-65 parts of dipolar solvent and 30-35 parts of low boiling point solvent into a reactor provided with a water distribution device, a heating device and a stirring device, heating to 140 ℃ under stirring, continuously removing water generated in the reaction through the water distribution device, carrying out heat preservation reaction at 140 ℃ for 1-2h, then discharging the low boiling point solvent through a water separator, heating the reaction system to 185-195 ℃, carrying out heat preservation polymerization for 3-5h, carrying out precipitation in the polymerization process, cooling to room temperature, adding 40-50 parts of methanol into the system, carrying out a large amount of precipitation, filtering the precipitation, repeatedly washing with deionized water and ethanol for 5-8 times, and finally drying the mixture in a vacuum oven at 50 ℃ for 24h, and grinding and crushing the mixture to obtain the polyether ether ketone resin containing the beta-diketone structure.
The dihydric phenol is at least one of 6,6 '-bis (4-hydroxyphenyl) undecane, 1, 4-dihydric phenol and 4, 4' -dihydroxybiphenyl.
The weak base is at least one of sodium carbonate and potassium carbonate.
The dipolar solvent is at least one of sulfolane, dimethyl sulfoxide and 2, 4-dimethylsulfolane.
The low boiling point solvent is at least one of benzene, toluene, n-octane and dodecane.
The anti-aging PVC plate based on the polyether ether ketone resin with the beta-diketone structure is characterized in that: the preparation method comprises the following steps: a. mixing materials: weighing the components according to the formula, adding the components into a mixer, heating and stirring, controlling the temperature of the mixer at 145 +/-5 ℃, the stirring speed at 1400 +/-100 r/min and the stirring time at 20 +/-2 min, and cooling to 50 +/-5 ℃ after the mixing is finished to obtain a mixture; b. extruding: b, putting the mixture in the step a into a screw extruder, and performing melt extrusion to obtain a semi-finished product; c. shaping and flat pressing: shaping and flat pressing the semi-finished product; d. cutting to length: and cutting the shaped and flat-pressed plate according to the requirement.
Compared with the prior art, the invention has the following advantages:
1. polyether ether ketone resin containing a beta-diketone structure is synthesized for the first time, the beta-diketone structure absorbs and transfers free radicals, the decomposition of polyvinyl chloride under photo-thermal conditions can be reduced, and a calcium-zinc macromolecular composite stabilizer is added, so that the PVC plate disclosed by the invention is better in thermal stability and light stability; both are resin type stabilizers, and have the advantages of difficult dissociation and long stabilization and aging time.
2. The modified resin is polyether ether ketone resin, and the flexural strength, the flame retardance, the chemical corrosion resistance and the high temperature resistance of the PVC plate are improved.
3. The added powder titanate coupling agent is combined with the inorganic filler into a whole through chemical coupling between the polymer resin in the system and the inorganic filler in the process of arranging the plates, and the toughness of the PVC plate is better than that of the common PVC plate; as the inorganic fillers are flame-retardant, the flame-retardant coating has better flame-retardant property.
Detailed Description
The aging-resistant PVC sheet based on a polyether ether ketone resin with a beta-diketone structure according to the present invention will be further described with reference to the following examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention.
Example 1
A polyether ether ketone resin A containing a beta-diketone structure is prepared by the following synthetic method in parts by weight:
adding 20 parts of 1, 4-dihydroxyphenol, 15 parts of 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, 8 parts of potassium carbonate, 65 parts of 2, 4-dimethylsulfolane and 30 parts of toluene into a reactor provided with a water diversion device, a heating device and a stirring device under the condition of introducing nitrogen, heating to 140 ℃ under stirring, continuously removing water generated in the reaction through the water diversion device, keeping the temperature at 140 ℃ for reaction for 1h, and then discharging a low-boiling-point solvent through a water separator, heating the reaction system to 195 ℃, carrying out thermal polymerization for 3 hours, precipitating in the polymerization process, cooling to room temperature, adding 50 parts of methanol into the system, precipitating a large amount of precipitates, filtering the precipitates, repeatedly washing with deionized water and ethanol for 8 times, finally drying in a vacuum oven at 50 ℃ for 24 hours, and grinding and crushing to obtain the polyether ether ketone resin A containing the beta-diketone structure.
Example 2
A polyether ether ketone resin B containing a beta-diketone structure is synthesized by the following steps:
adding 12 parts of 6, 6' -bis (4-hydroxyphenyl) undecane, 10 parts of 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, 6 parts of potassium carbonate, 60 parts of dimethyl sulfoxide and 35 parts of benzene into a reactor provided with a water separating device, a heating device and a stirring device under the condition of introducing nitrogen, heating to 120 ℃ under stirring, continuously removing water generated in the reaction through the water separating device, keeping the temperature at 120 ℃ for reaction for 2 hours, and then discharging a low-boiling-point solvent through a water separator, heating the reaction system to 185 ℃, carrying out thermal polymerization for 5 hours, separating out a precipitate in the polymerization process, cooling to room temperature, adding 40 parts of methanol into the system, separating out a large amount of precipitate, filtering the precipitate, repeatedly washing the precipitate for 5 times by using deionized water and ethanol, finally drying the precipitate for 24 hours in a vacuum oven at 50 ℃, and grinding and crushing the precipitate to obtain the polyether-ether-ketone resin B containing the beta-diketone structure.
Example 3
A polyether ether ketone resin C containing a beta-diketone structure is synthesized by the following steps:
charging 15 parts of 4, 4' -dihydroxybiphenyl, 12 parts of 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, 7 parts of potassium carbonate, 61 parts of sulfolane and 32 parts of dodecane into a reactor equipped with a water-dividing device, a heating device and a stirring device under the condition of introducing nitrogen gas, heating to 130 ℃ under stirring, continuously removing water generated in the reaction by a water separator, keeping the temperature at 130 ℃ for reaction for 1.4h, and then discharging a low-boiling-point solvent through a water separator, heating the reaction system to 187 ℃, carrying out thermal polymerization for 4 hours, separating out a precipitate in the polymerization process, cooling to room temperature, adding 42 parts of methanol into the system, separating out a large amount of precipitate, filtering the precipitate, repeatedly washing with deionized water and ethanol for 6 times, finally drying in a vacuum oven at 50 ℃ for 24 hours, and grinding and crushing to obtain the polyether-ether-ketone resin C containing the beta-diketone structure.
Example 4
An anti-aging PVC plate based on polyether-ether-ketone resin with a beta-diketone structure is characterized by comprising the following components in parts by weight: 90 parts of PVC resin powder, 17 parts of polyether ether ketone resin A containing a beta-diketone structure, 0.6 part of calcium stearate, 3 parts of powder type titanate coupling agent and 26 parts of magnesium aluminum silicate.
Example 5
An anti-aging PVC plate based on polyether-ether-ketone resin with a beta-diketone structure is characterized by comprising the following components in parts by weight: 100 parts of PVC resin powder, 15 parts of polyether ether ketone resin B containing a beta-diketone structure, 0.8 part of zinc stearate, 2 parts of powder type titanate coupling agent and 40 parts of barium sulfate.
Example 6
An anti-aging PVC plate based on polyether-ether-ketone resin with a beta-diketone structure is characterized by comprising the following components in parts by weight: 80 parts of PVC resin powder, 25 parts of polyether ether ketone resin containing a beta-diketone structure, 0.5 part of zinc oleate, 5 parts of powder titanate coupling agent and 20 parts of calcium silicate.
The preparation method of the anti-aging PVC plate based on the polyether ether ketone resin with the beta-diketone structure in the embodiments 4 to 6 comprises the following steps:
a. mixing materials: weighing the components according to the formula, adding the components into a mixer, heating and stirring, controlling the temperature of the mixer at 145 +/-5 ℃, the stirring speed at 1400 +/-100 r/min and the stirring time at 20 +/-2 min, and cooling to 50 +/-5 ℃ after the mixing is finished to obtain a mixture; b. extruding: b, putting the mixture in the step a into a screw extruder, and performing melt extrusion to obtain a semi-finished product; c. shaping and flat pressing: shaping and flat pressing the semi-finished product; d. cutting to length: and cutting the shaped and flat-pressed plate according to the requirement.
The aging-resistant PVC sheets based on the polyetheretherketon resin with the beta-diketone structure prepared in examples 4-6 and the commercially available flame-retardant PVC sheets with a certain brand (comparative example) were subjected to performance tests under the same conditions, and the test data are shown in the following table 1:
table one: properties of PVC sheet
From the table above, it can be seen that under the condition of approximate flame retardant property, the aging resistance, bending strength, shore hardness and dimensional stability of the anti-aging PVC plate based on the polyether ether ketone resin with a beta-diketone structure are superior to those of the commercial flame retardant PVC plate.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes, modifications and variations can be made therein without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A polyether ether ketone resin containing a beta-diketone structure is characterized in that the synthesis method comprises the following steps: adding dihydric phenol, 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, weak base, dipolar solvent and low-boiling point solvent into a reactor under the condition of introducing nitrogen, heating to 120-plus-140 ℃ under stirring, removing water, carrying out heat preservation reaction for 1-2h, then discharging the low-boiling point solvent, heating the reaction system to 185-plus-140 ℃, carrying out heat preservation polymerization for 3-5h, cooling to room temperature, adding methanol into the system, filtering and precipitating, repeatedly washing with deionized water and ethanol, finally drying at 50 ℃ for 24h, and grinding and crushing to obtain the product.
2. The polyetheretherketone ketone resin containing a beta-diketone structure according to claim 1, wherein the synthesis method comprises the following steps in parts by weight: under the condition of introducing nitrogen, adding 12-20 parts of dihydric phenol, 10-15 parts of 1, 3-bis (4-fluorophenyl) -1, 3-propanedione, 6-8 parts of weak base, 60-65 parts of dipolar solvent and 30-35 parts of low boiling point solvent into a reactor provided with a water distribution device, a heating device and a stirring device, heating to 140 ℃ under stirring, continuously removing water generated in the reaction through the water distribution device, carrying out heat preservation reaction at 140 ℃ for 1-2h, then discharging the low boiling point solvent through a water separator, heating the reaction system to 185-195 ℃, carrying out heat preservation polymerization for 3-5h, carrying out precipitation in the polymerization process, cooling to room temperature, adding 40-50 parts of methanol into the system, carrying out a large amount of precipitation, filtering the precipitation, repeatedly washing with deionized water and ethanol for 5-8 times, and finally drying the mixture in a vacuum oven at 50 ℃ for 24h, and grinding and crushing the mixture to obtain the polyether ether ketone resin containing the beta-diketone structure.
3. The polyetheretherketon resin comprising a β -diketone structure according to claim 1, wherein the dihydric phenol is at least one of 6,6 '-bis (4-hydroxyphenyl) undecane and 4, 4' -dihydroxybiphenyl.
4. The polyetheretherketon resin comprising a β -diketone structure according to claim 1, wherein the weak base is at least one of sodium carbonate and potassium carbonate.
5. The polyetheretherketon resin comprising a β -diketone structure according to claim 1, wherein the dipolar solvent is at least one of sulfolane, dimethylsulfoxide, 2, 4-dimethylsulfolane; the low boiling point solvent is at least one of benzene, toluene, n-octane and dodecane.
6. Use of a polyetheretherketon resin comprising a beta-diketone structure according to claims 1 to 5 in an ageing-resistant PVC sheet.
7. The application of the polyetheretherketon resin containing a beta-diketone structure in an aging-resistant PVC sheet according to claim 6, wherein the aging-resistant PVC sheet comprises the following components in parts by weight: 80-100 parts of PVC resin powder, 15-25 parts of polyether ether ketone resin containing a beta-diketone structure, 0.5-0.8 part of calcium-zinc macromolecular composite stabilizer, 2-5 parts of powdery titanate coupling agent and 20-40 parts of inorganic filler;
the structural formula of the polyether ether ketone resin containing the beta-diketone structure is as follows:
wherein R is alkyl or aromatic group, and n is 80-200.
8. The application of the polyetheretherketon resin containing the beta-diketone structure in the aging-resistant PVC sheet according to claim 6, wherein the calcium-zinc macromolecular composite stabilizer is at least one of calcium stearate, zinc stearate, calcium linoleate, calcium zinc linoleate, calcium oleate and zinc oleate; the inorganic filler is at least one of magnesium aluminum silicate, calcium silicate, barium sulfate and titanium dioxide.
9. The application of the polyetheretherketon resin containing a beta-diketone structure in an aging-resistant PVC sheet according to claim 6, wherein the powder titanate coupling agent is a monoalkoxy coupling agent having a structural formula of RO-Ti (OX-R-Y) 3.
10. The application of the polyetheretherketon resin containing a beta-diketone structure in an aging-resistant PVC sheet according to claim 9, wherein the powdery titanate coupling agent is isopropyl triisostearoyl titanate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011141078.7A CN112142933A (en) | 2018-09-13 | 2018-09-13 | Polyether-ether-ketone resin containing beta-diketone structure and application thereof in anti-aging PVC (polyvinyl chloride) plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069378.1A CN109280293B (en) | 2018-09-13 | 2018-09-13 | Anti-aging PVC (polyvinyl chloride) plate of polyether-ether-ketone resin based on beta-diketone structure |
| CN202011141078.7A CN112142933A (en) | 2018-09-13 | 2018-09-13 | Polyether-ether-ketone resin containing beta-diketone structure and application thereof in anti-aging PVC (polyvinyl chloride) plate |
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| CN201811069378.1A Division CN109280293B (en) | 2018-09-13 | 2018-09-13 | Anti-aging PVC (polyvinyl chloride) plate of polyether-ether-ketone resin based on beta-diketone structure |
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| CN201811069378.1A Active CN109280293B (en) | 2018-09-13 | 2018-09-13 | Anti-aging PVC (polyvinyl chloride) plate of polyether-ether-ketone resin based on beta-diketone structure |
| CN202011141061.1A Withdrawn CN112143142A (en) | 2018-09-13 | 2018-09-13 | Preparation method of anti-aging PVC (polyvinyl chloride) plate based on polyether-ether-ketone resin with beta-diketone structure |
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| CN202011141061.1A Withdrawn CN112143142A (en) | 2018-09-13 | 2018-09-13 | Preparation method of anti-aging PVC (polyvinyl chloride) plate based on polyether-ether-ketone resin with beta-diketone structure |
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| CN101602863B (en) * | 2009-06-22 | 2011-09-14 | 温州天盛塑料助剂有限公司 | Environmental-friendly dust-free calcium-zinc composite heat stabilizer for PVC processing |
| CN104910565A (en) * | 2015-05-12 | 2015-09-16 | 蚌埠市耀得保温容器有限公司 | Impact resistant vacuum flask |
| CN104947915B (en) * | 2015-07-20 | 2017-08-08 | 江苏锐升新材料有限公司 | A kind of PVC composite floor boards and its production technology with heat-resistant fireproof structure |
| CN106609011B (en) * | 2015-10-21 | 2019-03-22 | 大电塑料（上海）有限公司 | A kind of foaming PVC material and its preparation method and application |
| CN105330798A (en) * | 2015-11-30 | 2016-02-17 | 江门市优巨新材料有限公司 | Industrialized synthesis method of end-capped polyether-ether-ketone resin |
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| CN109280293A (en) | 2019-01-29 |
| CN112143142A (en) | 2020-12-29 |
| CN109280293B (en) | 2021-08-27 |
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Application publication date: 20201229 |