CN113463219A - Production process of anti-static plastic net - Google Patents

Production process of anti-static plastic net Download PDF

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Publication number
CN113463219A
CN113463219A CN202110746783.8A CN202110746783A CN113463219A CN 113463219 A CN113463219 A CN 113463219A CN 202110746783 A CN202110746783 A CN 202110746783A CN 113463219 A CN113463219 A CN 113463219A
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plastic net
blend
antistatic
reacting
producing
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王长彬
郭之全
李新新
李云飞
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Anhui Yixian New Material Technology Co ltd
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Anhui Yixian New Material Technology Co ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C269/02—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups from isocyanates with formation of carbamate groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/24—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran
    • C07C67/26—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran with an oxirane ring
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
    • D01F11/06—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent

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  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses a production process of an antistatic plastic net, which comprises the steps of mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a blend, putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the molten blend to flow through a die orifice hole to form two strands of molten material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network; the prepared macromolecular cross-linked structure can increase intermolecular conductivity, can effectively evacuate electrons, achieves the aim of static resistance, can generate linear polymerization with higher polymerization degree in the polyesterification reaction process of the ricinoleic acid with the branched chain, and can generate stable polyester long chain and chain segment in the plastification action, so that the flexibility and toughness of the prepared plastic net are enhanced, and the aim of enhancing the mechanical property of the plastic net is achieved.

Description

Production process of anti-static plastic net
Technical Field
The invention relates to the field of plastic nets, in particular to a production process of an anti-static plastic net.
Background
The plastic net is widely used for packaging various toys, food, vegetables, wine bottles and mechanical parts, is also an essential material for aquaculture, building engineering and road traffic construction, and can also be used for producing automobile backrests, Simmons mattresses, air-conditioning nets, flame-retardant nets, roadbed nets and the like;
the existing plastic net part generates static electricity due to friction, contact or induction in the using process, the static electricity enables the part to easily absorb dust and adsorb dirt, the use of the product is seriously influenced, electric shock and other phenomena are generated to people in processing and use, even serious accidents such as explosion and the like are caused by spark generated by static discharge, and the plastic net has lower strength, is easy to break, stretch and deform and influences the use;
therefore, the problem to be solved by the invention is how to improve the problem that the existing plastic net is easy to generate electrostatic action, so that the manufactured part is easy to absorb dust and dirt, and the plastic net has low strength and easy to break and stretch to deform.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a production process of an anti-static plastic net, which comprises the following steps:
(1) drying 1, 3-butanediol in a vacuum drying oven, adding L-lysine diisocyanate into a four-neck flask equipped with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding the dried 1, 3-butanediol, moving the flask into an oil bath pan, controlling the temperature to obtain an intermediate A, adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide to obtain an intermediate B, cooling the intermediate B, adding pentaerythritol triacrylate into the intermediate B to obtain an intermediate C, adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, adding triethylamine and deionized water into the flask, adding benzoin butyl ether as a photoinitiator thereto to obtain the antistatic agent, coating the antistatic agent on the surface of a plastic net, the problems that the plastic net workpiece generates static electricity due to friction, contact or induction in the using process, the static electricity enables the workpiece to easily absorb dust, the dirt is absorbed, the use of the product is seriously influenced, and electric shock is generated to people in processing and using processes are solved;
(2) ricinoleic acid is added into a three-neck flask with a thermometer and a stirring rod, dimethyl maleic anhydride and tetra-n-butyl titanate are added, a stirrer is started and heated to obtain an intermediate D, ricinoleic acid is added into the three-neck flask with the thermometer and the stirring rod, epichlorohydrin is added, the stirrer is started and heated to obtain an intermediate E, the intermediate D and the intermediate E are added into a reaction kettle, concentrated sulfuric acid is added as a catalyst to obtain the modified plasticizer, and the modified plasticizer is added into a plastic net, so that the problems that the strength of the plastic net is low, the plastic net is easy to break, stretch and deform, and the use is influenced are solved.
The purpose of the invention can be realized by the following technical scheme:
the production process of the anti-static plastic net comprises the following components in parts by weight:
60-70 parts of polyvinyl chloride, 20-30 parts of plant cellulose fiber, 15-20 parts of modified plasticizer, 1-2 parts of antioxidant and 1-2 parts of dispersant;
the anti-static plastic net is prepared by the following steps:
s1: mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a mixed material;
s2: putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the melted blend to flow through pores of a die opening to form two strands of melted material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network;
s3: and cooling the mixture forming the network to room temperature by cold air, uniformly coating the antistatic agent on the plastic net, and moving the plastic net into an ultraviolet curing machine for curing to obtain the antistatic plastic net.
As a further scheme of the invention: the preparation process of the antistatic agent is as follows:
s21: drying 1, 3-butanediol in a vacuum drying oven at 80-90 ℃ for 2 h;
s22: adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature at 80-90 ℃, controlling the rotating speed of a mechanical stirrer at 450r/min, and reacting for 2-3h to obtain an intermediate A;
the reaction principle is as follows:
Figure BDA0003143261120000031
s23: adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide, and reacting for 1-2h to obtain an intermediate B;
the reaction principle is as follows:
Figure BDA0003143261120000032
s24: cooling the intermediate B to 30-40 ℃, adding pentaerythritol triacrylate into the intermediate B, and reacting for 2-3h to obtain an intermediate C;
the reaction principle is as follows:
Figure BDA0003143261120000041
s25: adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, stirring for 2-3h, adding triethylamine and deionized water into the flask, increasing the rotating speed of a stirrer to 1000-1200r/min, stirring for 2-3h, adding benzoin butyl ether serving as a photoinitiator, and stirring for 1-2h to obtain the antistatic agent.
As a further scheme of the invention: the molar ratio of the L-lysine diisocyanate to the 1, 3-butanediol in step S22 is 1: 2.5-3.
As a further scheme of the invention: in the step S23, the dosage ratio of the N, N-dimethylacetamide to the dimethylolpropionic acid is 20 g: 1.3g, the molar ratio of dimethylolpropionic acid to intermediate A is 3-4: 1.
as a further scheme of the invention: in the step S24, the molar ratio of the pentaerythritol triacrylate to the intermediate B is 1; 2.5-2.7. In the step S25, the ratio of the intermediate C, diethylene glycol dimethacrylate and ethylene glycol dimethacrylate is 10: 3: 5, the dosage ratio of the triethylamine to the deionized water is 1 mL: 2 mL.
As a further scheme of the invention: the preparation process of the modified plasticizer is as follows:
s71: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding dimethyl maleic anhydride and tetra-n-butyl titanate, starting a stirrer, heating, controlling the temperature at 110-;
the reaction principle is as follows:
Figure BDA0003143261120000051
s72: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding epoxy chloropropane, starting a stirrer, heating, controlling the temperature at 110-120 ℃, reacting for 1-2h, and cooling to room temperature to obtain an intermediate E;
the reaction principle is as follows:
Figure BDA0003143261120000052
s73: and adding the intermediate D and the intermediate E into a reaction kettle, adding concentrated sulfuric acid serving as a catalyst, and reacting for 2-3 hours to obtain the modified plasticizer.
The reaction principle is as follows:
Figure BDA0003143261120000061
as a further scheme of the invention: in step S71, the molar ratio of ricinoleic acid, dimethylmaleic anhydride, and tetra-n-butyl titanate is 1: 1: 0.4, wherein the molar ratio of the ricinoleic acid to the epichlorohydrin in the step S72 is 1: 1.
as a further scheme of the invention: the molar ratio of the intermediate D to the intermediate E in the step S73 is 1: 1.3-1.5.
As a further scheme of the invention: the antioxidant comprises one or more of zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, alkyl phenothiazine, benzotriazole derivatives and mercaptobenzothiazole derivatives, and the dispersing agent is triethylhexyl phosphoric acid.
The invention has the beneficial effects that:
the invention mixes polyvinyl chloride, plant cellulose fiber, modified plasticizer, antioxidant and dispersant to obtain a blend, the blend is put into an extruder to be heated and melted, the blend is extruded by a screw and enters a rotary machine head, the melted blend flows through pores of a die opening to form two strands of melted material filaments, the machine head rotates, the two strands of material filaments are discontinuously converged to form a network, the temperature of the blend forming the network is reduced by cold air, the blend forming the network is cooled to room temperature, an antistatic agent is uniformly coated on a plastic network and is moved to an ultraviolet curing machine to be cured, thus obtaining the antistatic plastic network, ricinoleic acid has natural advantages of non-toxicity, regeneration and biodegradation, the aim of protecting the environment can be achieved by using ricinoleic acid, and L-lysine diisocyanate which has high curing speed and is selected as the antistatic agent prepared by the ultraviolet curing technology, The prepared macromolecular cross-linked structure can increase intermolecular conductivity, effectively evacuate electrons and achieve the aim of static resistance;
drying 1, 3-butanediol in a vacuum drying oven, adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding the dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature to obtain an intermediate A, adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide to obtain an intermediate B, cooling the intermediate B, adding pentaerythritol triacrylate into the intermediate B to obtain an intermediate C, adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, adding triethylamine and deionized water into the flask, adding benzoin butyl ether as a photoinitiator to obtain the antistatic agent, and introducing pentaerythritol into a polymerization system to obtain a tetrafunctional prepolymer, 1, 3-butanediol is introduced to increase the crosslinking property of a molecular structure, diethylene glycol dimethacrylate and ethylene glycol dimethacrylate are used for end capping, the addition of an end capping agent can effectively improve the mechanical strength, water resistance, heat resistance and solvent resistance of coating, the obtained molecules contain a large amount of C ═ C unsaturated bonds, and a photoinitiator is added to enable C ═ C molecules to be crosslinked, so that a macromolecular crosslinking structure is obtained, the conductivity among molecules is increased, electrons can be effectively evacuated, and the antistatic effect is achieved;
ricinoleic acid is added into a three-neck flask provided with a thermometer and a stirring rod, dimethyl maleic anhydride and tetra-n-butyl titanate are added, a stirrer is started and heated to obtain an intermediate D, ricinoleic acid is added into the three-neck flask provided with the thermometer and the stirring rod, epichlorohydrin is added, the stirrer is started and heated to obtain an intermediate E, the intermediate D and the intermediate E are added into a reaction kettle, concentrated sulfuric acid is added as a catalyst to obtain the modified plasticizer, the modified plasticizer is added into a plastic net, the ricinoleic acid with branched chains can generate linear polymerization with higher polymerization degree in the polyesterification reaction process and has crosslinking to a certain degree, the generated polyester contains branched chains and has high crosslinking degree, so that the modified plasticizer can be better inserted into the molecular structure of the plastic net, and the generated polyester long chains and chain segments are stable under the plasticization action, the flexibility and toughness of the prepared plastic net are enhanced, the distance between polymer macromolecules is increased by the isolation of the modified plasticizer, the van der Waals force between the molecules of the plastic net is weakened, and the purpose of enhancing the mechanical property of the plastic net is achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the embodiment is an anti-static plastic net, which comprises the following steps:
s1: mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a mixed material;
s2: putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the melted blend to flow through pores of a die opening to form two strands of melted material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network;
s3: and cooling the mixture forming the network to room temperature by cold air, uniformly coating the antistatic agent on the plastic net, and moving the plastic net into an ultraviolet curing machine for curing to obtain the antistatic plastic net.
The preparation process of the antistatic agent comprises the following steps:
s21: drying 1, 3-butanediol in a vacuum drying oven at 80 ℃ for 2 h;
s22: adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature at 80 ℃, controlling the rotating speed of a mechanical stirrer at 360r/min, and reacting for 2 hours to obtain an intermediate A;
s23: adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide, and reacting for 1h to obtain an intermediate B;
s24: cooling the intermediate B to 30 ℃, adding pentaerythritol triacrylate into the intermediate B, and reacting for 2h to obtain an intermediate C;
s25: adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, stirring for 2h, adding triethylamine and deionized water into a flask, increasing the rotating speed of a stirrer to 1000r/min, stirring for 2h, adding benzoin butyl ether serving as a photoinitiator, and stirring for 2h to obtain the antistatic agent.
The preparation process of the modified plasticizer is as follows:
s71: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding dimethyl maleic anhydride and tetra-n-butyl titanate, starting a stirrer, heating, controlling the temperature at 120 ℃, reacting for 1 hour, and cooling to room temperature to obtain an intermediate D;
s72: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding epoxy chloropropane, starting a stirrer, heating, controlling the temperature at 110 ℃, reacting for 1h, and cooling to room temperature to obtain an intermediate E;
s73: and adding the intermediate D and the intermediate E into a reaction kettle, adding concentrated sulfuric acid serving as a catalyst, and reacting for 2 hours to obtain the modified plasticizer.
Example 2:
the embodiment is an anti-static plastic net, which comprises the following steps:
s1: mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a mixed material;
s2: putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the melted blend to flow through pores of a die opening to form two strands of melted material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network;
s3: and cooling the mixture forming the network to room temperature by cold air, uniformly coating the antistatic agent on the plastic net, and moving the plastic net into an ultraviolet curing machine for curing to obtain the antistatic plastic net.
The preparation process of the antistatic agent comprises the following steps:
s21: drying 1, 3-butanediol in a vacuum drying oven at 90 ℃ for 2 hours;
s22: adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature at 90 ℃, controlling the rotating speed of a mechanical stirrer at 360r/min, and reacting for 3 hours to obtain an intermediate A;
s23: adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide, and reacting for 2 hours to obtain an intermediate B;
s24: cooling the intermediate B to 40 ℃, adding pentaerythritol triacrylate into the intermediate B, and reacting for 3h to obtain an intermediate C;
s25: adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, stirring for 3h, adding triethylamine and deionized water into a flask, increasing the rotating speed of a stirrer to 1000r/min, stirring for 3h, adding benzoin butyl ether serving as a photoinitiator, and stirring for 2h to obtain the antistatic agent.
The preparation process of the modified plasticizer is as follows:
s71: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding dimethyl maleic anhydride and tetra-n-butyl titanate, starting a stirrer, heating, controlling the temperature at 120 ℃, reacting for 2 hours, and cooling to room temperature to obtain an intermediate D;
s72: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding epoxy chloropropane, starting a stirrer, heating, controlling the temperature at 120 ℃, reacting for 2 hours, and cooling to room temperature to obtain an intermediate E;
s73: and adding the intermediate D and the intermediate E into a reaction kettle, adding concentrated sulfuric acid serving as a catalyst, and reacting for 3 hours to obtain the modified plasticizer.
Example 3:
the embodiment is an anti-static plastic net, which comprises the following steps:
s1: mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a mixed material;
s2: putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the melted blend to flow through pores of a die opening to form two strands of melted material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network;
s3: and cooling the mixture forming the network to room temperature by cold air, uniformly coating the antistatic agent on the plastic net, and moving the plastic net into an ultraviolet curing machine for curing to obtain the antistatic plastic net.
The preparation process of the antistatic agent comprises the following steps:
s21: drying 1, 3-butanediol in a vacuum drying oven at 90 ℃ for 2 hours;
s22: adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature at 80 ℃, controlling the rotating speed of a mechanical stirrer at 360r/min, and reacting for 3 hours to obtain an intermediate A;
s23: adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide, and reacting for 2 hours to obtain an intermediate B;
s24: cooling the intermediate B to 40 ℃, adding pentaerythritol triacrylate into the intermediate B, and reacting for 2h to obtain an intermediate C;
s25: adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, stirring for 3h, adding triethylamine and deionized water into a flask, increasing the rotating speed of a stirrer to 1000r/min, stirring for 3h, adding benzoin butyl ether serving as a photoinitiator, and stirring for 1h to obtain the antistatic agent.
The preparation process of the modified plasticizer is as follows:
s71: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding dimethyl maleic anhydride and tetra-n-butyl titanate, starting a stirrer, heating, controlling the temperature at 120 ℃, reacting for 1 hour, and cooling to room temperature to obtain an intermediate D;
s72: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding epoxy chloropropane, starting a stirrer, heating, controlling the temperature at 110 ℃, reacting for 2 hours, and cooling to room temperature to obtain an intermediate E;
s73: and adding the intermediate D and the intermediate E into a reaction kettle, adding concentrated sulfuric acid serving as a catalyst, and reacting for 2 hours to obtain the modified plasticizer.
Comparative example 1:
compared with the example 3, the comparative example does not add an antistatic agent, and the rest steps are the same;
comparative example 2:
compared with the example 3, the comparative example does not add the modified plasticizer, and the rest steps are the same;
comparative example 3:
compared with the example 3, the comparative example does not add the antistatic agent and the modifying plasticizer, and the rest steps are the same;
comparative example 4:
compared with the example 3, the antistatic auxiliary agent disclosed in the Chinese patent CN104292826A is used for replacing the antistatic agent, and the rest steps are the same;
the antistatic plastic nets of examples 1-3 and comparative examples 1-4 were tested using the test standards of GB/T1040.3-2006 "determination of tensile properties of plastics" and GB/T1410 "test methods for volume resistivity and surface resistivity of solid insulation", and the test results are shown in the following table:
Figure BDA0003143261120000121
Figure BDA0003143261120000131
as can be seen from the above table, the surface resistivity of the examples reached 8.7X 107-9×107Omega. m, comparative examples 1 and 3 without addition of antistatic agent had surface resistivities of 4X 106-4.5×106Omega. m, comparative example 4 using the antistatic auxiliary disclosed in Chinese patent CN104292826A in place of the antistatic agent had a surface resistivity of 1.7X 107Omega m, the data of the comparative example 4 is obviously superior to that of the comparative examples 1 and 3, the data of the experimental example is obviously superior to that of the comparative example 4, the tensile strength of the example reaches 28-30MPa, the tensile strength of the comparative examples 2 and 3 without the addition of the modified plasticizer is 18-19MPa, the elongation at break of the example is 299-158%, the elongation at break of the comparative examples 2 and 3 without the addition of the modified plasticizer is 156-158%, and the data of the experimental example is obviously superior to that of the comparative examples 2 and 3, which shows that the mechanical property and the antistatic effect of the plastic net can be effectively improved by the addition of the modified plasticizer and the coating of the antistatic agent.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims (10)

1. The production process of the anti-static plastic net is characterized by comprising the following components in parts by weight:
60-70 parts of polyvinyl chloride, 20-30 parts of plant cellulose fiber, 15-20 parts of modified plasticizer, 1-2 parts of antioxidant and 1-2 parts of dispersant;
the anti-static plastic net is prepared by the following steps:
s1: mixing polyvinyl chloride, plant cellulose fibers, a modified plasticizer, an antioxidant and a dispersing agent to obtain a mixed material;
s2: putting the blend into an extruder, heating and melting the blend, extruding the blend into a rotary machine head through a screw, enabling the melted blend to flow through pores of a die opening to form two strands of melted material yarns, rotating the machine head, and intermittently converging the two strands of material yarns at one point to form a network;
s3: and cooling the mixture forming the network to room temperature by cold air, uniformly coating the antistatic agent on the plastic net, and moving the plastic net into an ultraviolet curing machine for curing to obtain the antistatic plastic net.
2. The process for producing an antistatic plastic net according to claim 1, wherein the antistatic agent is prepared by the following steps:
s21: drying 1, 3-butanediol in a vacuum drying oven at 80-90 ℃ for 2 h;
s22: adding L-lysine diisocyanate into a four-neck flask provided with a mechanical stirring paddle, a nitrogen pipe, a condenser and a thermometer, adding dried 1, 3-butanediol, moving the flask into an oil bath pot, controlling the temperature at 80-90 ℃, controlling the rotating speed of a mechanical stirrer at 450r/min, and reacting for 2-3h to obtain an intermediate A;
s23: adding dimethylolpropionic acid into the intermediate A, adding a solvent N, N-dimethylacetamide, and reacting for 1-2h to obtain an intermediate B;
s24: cooling the intermediate B to 30-40 ℃, adding pentaerythritol triacrylate into the intermediate B, and reacting for 2-3h to obtain an intermediate C;
s25: adding diethylene glycol dimethacrylate and ethylene glycol dimethacrylate into the intermediate C, stirring for 2-3h, adding triethylamine and deionized water into the flask, increasing the rotating speed of a stirrer to 1000-1200r/min, stirring for 2-3h, adding benzoin butyl ether serving as a photoinitiator, and stirring for 1-2h to obtain the antistatic agent.
3. The process for producing an antistatic plastic net according to claim 2, wherein the molar ratio of the L-lysine diisocyanate to the 1, 3-butanediol in step S22 is 1: 2.5-3.
4. The process for producing an antistatic plastic net according to claim 2, wherein the dosage ratio of the N, N-dimethylacetamide to the dimethylolpropionic acid in the step S23 is 20 g: 1.3g, the molar ratio of dimethylolpropionic acid to intermediate A is 3-4: 1.
5. the process for producing an antistatic plastic net according to claim 2, wherein the molar ratio of pentaerythritol triacrylate to intermediate B in step S24 is 1; 2.5-2.7.
6. The process of claim 2, wherein the ratio of the intermediate C, diethylene glycol dimethacrylate and ethylene glycol dimethacrylate used in step S25 is 10: 3: 5, the dosage ratio of the triethylamine to the deionized water is 1 mL: 2 mL.
7. The process for producing an antistatic plastic net according to claim 1, wherein the modifying plasticizer is prepared by the following steps:
s71: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding dimethyl maleic anhydride and tetra-n-butyl titanate, starting a stirrer, heating, controlling the temperature at 110-;
s72: adding ricinoleic acid into a three-neck flask provided with a thermometer and a stirring rod, adding epoxy chloropropane, starting a stirrer, heating, controlling the temperature at 110-120 ℃, reacting for 1-2h, and cooling to room temperature to obtain an intermediate E;
s73: and adding the intermediate D and the intermediate E into a reaction kettle, adding concentrated sulfuric acid serving as a catalyst, and reacting for 2-3 hours to obtain the modified plasticizer.
8. The process for producing an antistatic plastic net according to claim 7, wherein the molar ratio of ricinoleic acid, dimethylmaleic anhydride and tetra-n-butyl titanate in step S71 is 1: 1: 0.4, wherein the molar ratio of the ricinoleic acid to the epichlorohydrin in the step S72 is 1: 1.
9. the process for producing an antistatic plastic net according to claim 7, wherein the molar ratio of the intermediate D to the intermediate E in the step S73 is 1: 1.3-1.5.
10. The process for producing an antistatic plastic net according to claim 1, wherein the antioxidant comprises one or more of zinc dialkyldithiophosphate, zinc dialkyldithiocarbamate, alkylphenothiazine, benzotriazole derivatives, mercaptobenzothiazole derivatives, and the dispersant is triethylhexylphosphoric acid.
CN202110746783.8A 2021-07-01 2021-07-01 Production process of anti-static plastic net Withdrawn CN113463219A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116442616A (en) * 2023-03-13 2023-07-18 广东宝佳利新材料股份有限公司 BOPET film for ultrathin packaging and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116442616A (en) * 2023-03-13 2023-07-18 广东宝佳利新材料股份有限公司 BOPET film for ultrathin packaging and preparation method thereof

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