CN115073895A - Polybutylene adipate-terephthalate-zeolite-phosphogypsum composite material and preparation method and application thereof - Google Patents
Polybutylene adipate-terephthalate-zeolite-phosphogypsum composite material and preparation method and application thereof Download PDFInfo
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- CN115073895A CN115073895A CN202210827429.2A CN202210827429A CN115073895A CN 115073895 A CN115073895 A CN 115073895A CN 202210827429 A CN202210827429 A CN 202210827429A CN 115073895 A CN115073895 A CN 115073895A
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08L2201/06—Biodegradable
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Abstract
The invention relates to a polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material as well as a preparation method and application thereof, belonging to the field of green degradable composite materials. The polybutylene adipate terephthalate composite material consists of, by weight, 90-60 parts of PBAT, 5-15 parts of zeolite molecular sieve, 5-15 parts of phosphogypsum, 1-5 parts of compatibilizer and 0.1-0.5 part of chain extender. The invention also discloses a preparation method and application of the polybutylene adipate terephthalate composite material. The polybutylene adipate terephthalate composite material can form double-base synergistic effect, and has good environment improvement and repair performance, excellent interface compatibility and excellent mechanical property.
Description
Technical Field
The invention belongs to the field of green biodegradable composite materials, and particularly relates to a polybutylene adipate-terephthalate composite material as well as a preparation method and application thereof.
Background
The polybutylene adipate terephthalate (PBAT) composite material is a milky white or light yellow crystalline polymer and is a biodegradable thermoplastic polyester resin. PBAT is a copolymer of aliphatic and aromatic, and combines the excellent degradability of aliphatic polyesters with the good mechanical properties of aromatic polyesters, thus having good ductility, elongation at break and impact properties, and being widely applied in the extrusion and injection molding fields of packaging, utensils, tableware, and the like. The tear strength of PBAT is 120% of polyethylene and the impact strength is 130% of polyethylene, which are necessary conditions for producing high performance films. PBAT is the main raw material of the current biodegradable plastic film.
Disclosure of Invention
One of the purposes of the invention is to provide a polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material. The polybutylene adipate terephthalate composite material disclosed by the invention has a double-base synergistic effect and a three-element synergistic effect, and has excellent flame retardant property, excellent interface compatibility and excellent mechanical property.
The technical scheme for solving the technical problems is as follows: a polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material comprises, by weight, 90-60 parts of PBAT, 5-15 parts of zeolite molecular sieves, 5-15 parts of phosphogypsum, 1-5 parts of a compatibilizer and 0.3 part of a chain extender.
And a soil conditioner zeolite molecular sieve and phosphogypsum are also added.
The compatibilizer is one or a mixture of glycidyl methacrylate grafted ethylene-octene copolymer, ethylene-butyl acrylate-glycidyl methacrylate terpolymer or styrene-acrylonitrile grafted glycidyl methacrylate.
The polybutylene adipate terephthalate composite material of claim 1, wherein: the chain extender is basf ADR 4400.
Use of a composite material according to claim 1 for the preparation of a film, wherein: the polybutylene adipate terephthalate is used as one of preparation raw materials.
The composite material is applied to preparing parts, and the polybutylene adipate terephthalate is used as one of preparation raw materials.
The preparation method of the polybutylene adipate terephthalate composite material comprises the following steps:
1) taking the components according to the parts by weight, and uniformly mixing all the components to obtain a mixture;
2) drying the mixture obtained in the step 1) at the temperature of 80 ℃ to constant weight to obtain a dried material;
3) adding the dried material obtained in the step 2) into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and granulating to obtain the polybutylene adipate-terephthalate composite material.
The polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material has the beneficial effects that:
(1) through the reaction of the phosphogypsum, the zeolite molecular sieve and the compatibilizer, a cross-linked network structure is generated, so that the mechanical property of the polybutylene adipate terephthalate composite material is effectively improved.
(2) The phosphogypsum is added, the calcium ions rich in the phosphogypsum are used for exchanging sodium ions in the saline-alkali soil to adjust the pH value of the soil, and the available nutrients such as sulfur, phosphorus, magnesium and the like contained in the phosphogypsum are used, so that the physical and chemical properties of the saline-alkali soil can be effectively improved, and the purposes of increasing the yield and the income of crops are achieved. The zeolite soil is added, and the zeolite soil remediation is characterized in that heavy metal pollutants such as cadmium, chromium, lead, arsenic, mercury and the like in the soil and radioactive elements such as strontium, cesium and the like are solidified and passivated in zeolite cavities through adsorption, ion exchange and other reactions of the zeolite and the heavy metal elements, so that the biological effectiveness and the mobility of the heavy metal pollutants in the soil are reduced, the risks of absorbing pollutants by crops and transferring the pollutants to food chains are reduced, and the poisoning threat caused by eating the polluted crops by people is avoided. The two soil remediation agents form synergistic remediation based on two remediation mechanisms, so that the soil remediation performance of the PBAT composite material is improved, and the remediation effect is obviously better than that of the PBAT composite material added with the remediation agents.
(3) The polybutylene adipate terephthalate composite material has the advantages of wide raw material source, easy acquisition, low cost and good use effect.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the phosphogypsum is eluted phosphogypsum.
The beneficial effect of adopting the further scheme is that: the phosphogypsum contains various harmful impurities and has strong acidity. The Na2EDTA solution leaches the phosphogypsum, so that heavy metals of Pb, Zn and Cu contained in the phosphogypsum can be removed, and the harm to the environment caused by the phosphogypsum is avoided.
The beneficial effect of adopting the further scheme is that: can improve the dispersibility and compatibility in polymers, and can also increase the adsorption capacity to heavy metals when the silane coupling agent contains organic functional groups capable of adsorbing heavy metals.
Further, the zeolite molecular sieve is subjected to inorganic modification, and the surface of the zeolite molecular sieve can be coated and modified by iron oxide, iron-manganese oxide and iron-aluminum oxide.
The beneficial effect of adopting the further scheme is that: the zeolite molecular sieve has magnetism, and the adsorption capacity to heavy metals is increased.
Further, the zeolite molecular sieve is organically modified, and the silane coupling agent is organically modified.
The beneficial effect of adopting the further scheme is that: can improve the dispersibility and compatibility in polymers, and can also increase the adsorption capacity to heavy metals when the silane coupling agent contains organic functional groups capable of adsorbing heavy metals.
Further, the compatibilizer is one or a mixture of more of glycidyl methacrylate grafted ethylene-octene copolymer, ethylene-butyl acrylate-glycidyl methacrylate terpolymer and styrene-acrylonitrile grafted glycidyl methacrylate.
The beneficial effect of adopting the further scheme is that: has epoxy active groups, and can be favorable for reacting with PBAT matrix resin to generate a cross-linked network structure.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
The embodiment provides a polybutylene adipate-terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate-terephthalate composite material comprises 90 parts by weight of polybutylene adipate-terephthalate, 5 parts by weight of phosphogypsum, 5 parts by weight of zeolite molecular sieve, 3 parts by weight of compatilizer and 0.3 part by weight of chain extender.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: drying PBAT90 parts, phosphogypsum 5 parts, zeolite molecular sieve 5 parts, compatilizer 3 parts and chain extender 0.3 parts at 70 ℃ to constant weight respectively to obtain dry PBAT, dry phosphogypsum, dry zeolite molecular sieve, dry compatilizer and dry chain extender respectively.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing tester for film blowing. And cutting the blown film into a corresponding shape for performance test.
Example 2
The embodiment provides a polybutylene adipate-terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate-terephthalate composite material comprises 90 parts by weight of polybutylene adipate-terephthalate, 2 parts by weight of phosphogypsum, 2 parts by weight of modified zeolite molecular sieve, 3 parts by weight of compatilizer and 0.3 part by weight of chain extender. The modified zeolite molecular sieve is subjected to surface coating modification by iron oxide.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: drying PBAT90 parts, phosphogypsum 2 parts, modified zeolite molecular sieve 2 parts, compatilizer 3 parts and chain extender 0.3 part to constant weight at 70 ℃ respectively to obtain dried PBAT, dried phosphogypsum, dried modified zeolite molecular sieve, dried compatilizer and dried chain extender respectively.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried modified zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing tester for film blowing. And cutting the blown film into a corresponding shape for performance test.
Example 3
The embodiment provides a polybutylene adipate-terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate-terephthalate composite material comprises 80 parts by weight of polybutylene adipate-terephthalate, 10 parts by weight of phosphogypsum, 10 parts by weight of modified zeolite molecular sieve, 5 parts by weight of compatilizer and 0.3 part by weight of chain extender. The zeolite molecular sieve is organically modified by a silane coupling agent.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: 80 parts of PBAT, 10 parts of phosphogypsum, 10 parts of modified zeolite molecular sieve, 5 parts of compatilizer and 0.5 part of chain extender, and respectively drying the components at 70 ℃ to constant weight to respectively obtain dried PBAT, dried phosphogypsum, dried modified zeolite molecular sieve, dried compatilizer and dried chain extender.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried modified zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing testing machine for film blowing. And (5) cutting the blown film into a corresponding shape for performance test.
Example 4
The embodiment provides a polybutylene adipate-terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate-terephthalate composite material comprises 95 parts by weight of polybutylene adipate-terephthalate, 2 parts by weight of phosphogypsum, 2 parts by weight of zeolite molecular sieve, 5 parts by weight of compatilizer and 0.3 part by weight of chain extender.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: 95 parts of PBAT, 2 parts of phosphogypsum, 2 parts of zeolite molecular sieve, 5 parts of compatilizer and 0.3 part of chain extender, and respectively drying at 70 ℃ to constant weight to respectively obtain dried PBAT, dried phosphogypsum, dried zeolite molecular sieve, dried compatilizer and dried chain extender.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing tester for film blowing. And cutting the blown film into a corresponding shape for performance test.
Comparative example 1
The embodiment provides a polybutylene adipate-terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate-terephthalate composite material comprises 90 parts by weight of polybutylene adipate-terephthalate, 10 parts by weight of phosphogypsum, 3 parts by weight of compatilizer and 0.3 part by weight of chain extender.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: drying PBAT90 parts, phosphogypsum 5 parts, a compatilizer 3 parts and a chain extender 0.3 part at 70 ℃ to constant weight respectively to obtain dry PBAT, dry phosphogypsum, dry zeolite molecular sieve, dry compatilizer and dry chain extender respectively.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing tester for film blowing. And cutting the blown film into a corresponding shape for performance test.
Comparative example 2
The embodiment provides a polybutylene adipate terephthalate composite material and a preparation method thereof, wherein the polybutylene adipate terephthalate composite material comprises 90 parts by weight of polybutylene adipate terephthalate, 10 parts by weight of zeolite molecular sieve, 3 parts by weight of compatilizer and 0.3 part by weight of chain extender.
The embodiment also provides the polybutylene adipate terephthalate composite material and the preparation method thereof, and the preparation method comprises the following steps:
s1, weighing the following raw materials in parts by weight: drying PBAT90 parts, zeolite molecular sieve 5 parts, compatilizer 3 parts and chain extender 0.3 part at 70 ℃ to constant weight respectively to obtain dry PBAT, dry phosphogypsum, dry zeolite molecular sieve, dry compatilizer and dry chain extender respectively.
S2, adding the dried PBAT obtained in the step S1 into the dried phosphogypsum obtained in the step S1, the dried zeolite molecular sieve, the dried compatilizer and the dried chain extender, and uniformly mixing to obtain the component A.
S3, adding the mixture obtained in the step S2 into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and pelletizing to obtain the polybutylene adipate-terephthalate composite particles.
S4, putting the mixture obtained in the step S3 into an oven to be dried for 12 hours at 70 ℃, and removing water.
S5, adding the dried composite material particles obtained in the step S4 into a film blowing tester for film blowing. And cutting the blown film into a corresponding shape for performance test.
From the data of table 1, the following conclusions can be drawn:
(1) in general, the mechanical properties of polymer-based composites decrease with increasing filler content. According to the test results in table 1, it can be seen that, compared with the conventional materials, the zeolite molecular sieve used in example 1 of the present invention is 5 parts, and the phosphogypsum used in example 5 parts, while the zeolite molecular sieve used in example 2 is 2 parts, and the phosphogypsum used in example 2 is 2 parts, and the rest of the experimental conditions are the same. It can be seen from the data of examples 1 and 2 that, with the zeolite molecular sieve and the phosphogypsum, the increase of the inorganic filler content not only does not reduce the mechanical properties of the PBAT composite material, but also increases the mechanical properties of the PBAT composite material, because the reaction hydroxyl group in the zeolite molecular sieve, the reaction hydroxyl group in the phosphogypsum, and the reaction hydroxyl group in the PBAT matrix resin can all react with the epoxy group in the ethylene-butyl acrylate-glycidyl methacrylate terpolymer compatibilizer, the interfacial bonding force between the zeolite molecule and the phosphogypsum is enhanced, the interfacial bonding force between the zeolite molecular sieve, the phosphogypsum and the PBAT matrix is increased, the interfacial strength between the zeolite molecular sieve, the phosphogypsum and the PBAT matrix is enhanced, the network cross-linking structure is formed for the PBAT composite material, and with the increase of the appropriate amount of the zeolite molecular sieve and the phosphogypsum, the better the mechanical property of the PBAT composite material is, therefore, the modified zeolite molecular sieve and the phosphogypsum have the environmental remediation capability and the interface compatibilization effect in the PBAT composite material; both PBAT composites in example 1 and example 2 have heavy metal adsorption capacity, except that the difference in the amount of zeolite molecular sieve and phosphogypsum results in a difference in the mechanical properties of the PBAT composites.
(2) Example 1 of the present invention is different from comparative examples 1 and 2 in that: the addition amounts of the zeolite molecular sieve and the phosphogypsum in the raw material formula in the comparative example 1 are respectively 5 parts, the sum of the two is 10 parts, only 10 parts of the zeolite molecular sieve is added in the raw material formula in the comparative example 1, only 10 parts of the phosphogypsum is added in the raw material formula in the comparative example 2, and the rest experimental raw materials and conditions are the same. As seen from table 1, the adsorption capacity of the PBAT composite materials in comparative example 1 and comparative example 2 is relatively low, while the adsorption capacity of the PBAT composite material in example 1 is significantly improved, which indicates that the adsorption capacity of the PBAT composite material with the addition of zeolite molecular sieve and phosphogypsum alone is poor, because the addition of zeolite molecular sieve or phosphogypsum in the PBAT composite material is mainly chemical adsorption or physical adsorption, while the addition of zeolite molecular sieve and phosphogypsum in example 1 has both physical and chemical double-base synergistic adsorption in the PBAT composite material, so that the PBAT composite material in example 1 obtains excellent adsorption performance.
In addition, example 2 differs from the PBAT composites of comparative examples 1 and 2 in that: the addition amount of the zeolite molecular sieve in example 2 is 2 parts, the addition amount of the phosphogypsum is 2 parts, the sum of the two is 4 parts, only 5 parts of the zeolite molecular sieve is added in the raw material formula in comparative example 1, only 5 parts of the phosphogypsum is added in the raw material formula in comparative example 2, and the rest experimental raw materials and conditions are the same. As seen from table 1, the adsorption capacity of the PBAT composite material in example 2 was 18.6mg/g, while the adsorption capacities of the PBAT composite materials in comparative example 1 and comparative example 2 were 15.2mg/g and 14.3mg/g, respectively, indicating that the zeolite molecular sieve and phosphogypsum have excellent double-base synergistic adsorption, so that the PBAT composite material with lower contents of the zeolite molecular sieve and phosphogypsum can obtain excellent adsorption effect.
(3) Compared with the comparative examples 1-2, the samples prepared by the technical scheme of the invention have excellent double-base synergistic adsorption effect by adding the zeolite molecular sieve and the phosphogypsum with lower contents, so that the PBAT composite material can obtain excellent adsorption performance which is obviously better than that of the PBAT composite material added with a single adsorbent.
According to the invention, both the zeolite molecular sieve adsorbent and the phosphogypsum are provided with hydroxyl reaction groups, the compatibilizer provided with epoxy active groups is added, the epoxy active groups can react with the zeolite molecular sieve adsorbent, the phosphogypsum and the PBAT matrix resin to generate a cross-linked network structure, and the interface structures between the zeolite molecular sieve adsorbent and the PBAT matrix resin, between the zeolite molecular sieve adsorbent and the phosphogypsum and between the phosphogypsum and the PBAT matrix resin are enhanced, so that the adsorption performance and the interface binding power of the zeolite molecular sieve adsorbent and the phosphogypsum on the PBAT matrix resin are enhanced, the mechanical performance is not reduced by adding the adsorbent, and the mechanical performance of the PBAT composite material is also increased.
More importantly, the zeolite molecular sieve adsorbent and the phosphogypsum generate double-base synergistic effect of physical adsorption and chemical adsorption in the PBAT matrix resin. Therefore, the adsorption effect of zeolite molecular sieve adsorbents is mainly physical adsorption. The phosphogypsum adsorbent is mainly used for chemical adsorption, and the zeolite molecular sieve adsorbent and the gypsum adsorbent are subjected to synergistic adsorption, so that the phosphogypsum adsorbent not only has the physical adsorption effect of the zeolite molecular sieve, but also enhances the chemical adsorption effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material is characterized in that: according to the weight portion, the composite material comprises PBAT90-60 portions, zeolite molecular sieve 5-15 portions, phosphogypsum 5-15 portions, compatibilizer 1-5 portions and chain extender 0.3 portion as raw materials.
2. The polybutylene adipate terephthalate/zeolite/phosphogypsum composite material according to claim 1, characterized in that: and a soil conditioner zeolite molecular sieve and phosphogypsum are also added.
3. The polybutylene adipate terephthalate/zeolite/phosphogypsum composite material according to claim 1, characterized in that: the compatibilizer is one or a mixture of glycidyl methacrylate grafted ethylene-octene copolymer, ethylene-butyl acrylate-glycidyl methacrylate terpolymer or styrene-acrylonitrile grafted glycidyl methacrylate.
4. The polybutylene adipate terephthalate/zeolite/phosphogypsum composite material according to claim 1, characterized in that: the chain extender is basf ADR 4400.
5. Use of a composite material according to claim 1 for the preparation of a film, wherein: the polybutylene adipate terephthalate is used as one of preparation raw materials.
6. Use of a composite material according to any one of claims 1 to 5 for the production of a component part, wherein: the polybutylene adipate terephthalate is used as one of preparation raw materials.
7. A process for the preparation of polybutylene adipate terephthalate composite material according to any one of claims 1 to 5, characterized by comprising the following steps:
1) taking the components according to the parts by weight, and uniformly mixing all the components to obtain a mixture;
2) drying the mixture obtained in the step 1) at the temperature of 80 ℃ to constant weight to obtain a dried material;
3) adding the dried material obtained in the step 2) into a double-screw extruder, blending and extruding at 130-170 ℃, and cooling, drawing and granulating to obtain the polybutylene adipate-terephthalate/zeolite/phosphogypsum composite material.
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| CN202210827429.2A CN115073895A (en) | 2022-07-13 | 2022-07-13 | Polybutylene adipate-terephthalate-zeolite-phosphogypsum composite material and preparation method and application thereof |
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| CN202210827429.2A CN115073895A (en) | 2022-07-13 | 2022-07-13 | Polybutylene adipate-terephthalate-zeolite-phosphogypsum composite material and preparation method and application thereof |
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| CN115073895A true CN115073895A (en) | 2022-09-20 |
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