CN113789004B - Thermoplastic alloy material, application thereof in preparation of plastic mold and prepared hand mold - Google Patents
Thermoplastic alloy material, application thereof in preparation of plastic mold and prepared hand mold Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/04—Appliances for making gloves; Measuring devices for glove-making
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L25/00—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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
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- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
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Abstract
The invention discloses a thermoplastic alloy material, application of the thermoplastic alloy material in preparation of a plastic mold and a prepared hand mold, and belongs to the technical field of high polymer materials. The thermoplastic alloy material comprises the following components in parts by weight: 60-90 parts of a first polymer; 10-40 parts of a second polymer; 0-30 parts of glass fiber; 0-5 parts of hydrophilic modifier. The resin base material of the thermoplastic alloy material consists of the acid and alkali resistant first polymer and the hydrophilic second polymer, and the wettability and the acid and alkali resistance of the thermoplastic alloy material are effectively improved through the combined synergistic effect of the resin base material and the glass fiber, the hydrophilic modifier and the like, so that the requirement of repeated cleaning of the plastic hand mold in the use process can be well met. The surface tension of the plastic hand mold material prepared from the thermoplastic alloy material can reach more than 40, and the plastic hand mold material has good hydrophilicity, good acid and alkali resistance, easy cleaning and repeated cleaning for up to 4 years.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a thermoplastic alloy material and an application thereof in preparation of plastic molds and a prepared hand mold.
Background
The hand-shaped mould for producing the plastic glove by the dipping method is the hand mould. The production process of the rubber glove adopting the liquid latex as the raw material comprises the following steps: the ceramic hand mould is made by dipping plastic liquid material on the ceramic hand mould, drying and demoulding, and the hand mould used in the production should resist acid, alkali and chemical corrosion and have certain heat resistance. The existing hand mould body is generally made of ceramic, and the ceramic hand mould is convenient to manufacture and good in surface hydrophilicity, but is large in specific gravity (high in production energy consumption), fragile, not durable (the service period is generally less than 1 year), and cannot be recycled (poor in environmental protection). The thermoplastic alloy material is widely applied to the preparation of plastic products, and the development requirement of the plastic hand mould is greatly stimulated by a plurality of inconveniences of the existing ceramic hand mould, but the application of the existing thermoplastic alloy material in the preparation of the plastic hand mould can not well meet the requirement that the hand mould needs to be repeatedly cleaned, has no easy cleaning property, and the hydrophilicity of the hand mould material can not meet the related requirement.
Polypropylene is one of the most widely used general plastics because of its excellent comprehensive properties, good cost performance, light specific gravity, excellent acid and alkali resistance and wide processing and molding conditions, and can be considered to be applied to the preparation of plastic hand molds. However, polypropylene is a typical hydrophobic material, and the water contact angle is larger than 90 degrees, so that the surface hydrophilic performance requirement of the hand mould product cannot be met. CN104725837a discloses a plastic molding compound and its use, the thermoplastic molding compound comprising the following components: (A) 21-81.9wt% of a thermoplastic material comprising: (A1) 55 to 100wt% polyamide comprising at least 50wt% partially aromatic partially crystalline polyamide; (A2) 0-45 wt.% of a thermoplastic material based on a non-polyamide, the sum of (A1) and (A2) being 100 wt.% of component (A); (B) 10-70wt% glass fiber; (C) 0.1-10wt% of an LDS additive or a mixture of LDS additives; (D) 8-18wt% of a halogen-free flame retardant; (E) 0-40wt% of a particulate filler other than C; (F) 0-2wt% of other different additives; wherein the total amount of (A) - (F) is 100 wt.%. The plastic molding compounds disclosed in the above art comprise polyamide and glass fiber components, but the thermoplastic compounds provided by the above art are directed to improvements in mechanical properties, including tensile modulus of elasticity, tear resistance, elongation at break and impact resistance, and do not suggest themselves to those skilled in the art for improving the hydrophilicity and acid and base resistance of plastic molding compounds.
Disclosure of Invention
The invention aims to overcome the defects and deficiencies of poor hydrophilicity and acid and alkali resistance of the existing plastic molding compound, and provides a thermoplastic alloy material, which effectively improves the wettability and acid and alkali resistance of the thermoplastic alloy material through the synergistic effect of a first polymer with excellent acid and alkali resistance and a second polymer with excellent wettability, and can adapt to solvent washing with different acid and alkali resistances, so that the material has easy cleaning property and hydrophilicity.
Another object of the invention is to provide the use of a thermoplastic alloy material for the preparation of a plastic mould.
It is a further object of the present invention to provide a plastic hand form.
The above object of the present invention is achieved by the following technical scheme:
the thermoplastic alloy material comprises the following components in parts by weight:
wherein the first polymer is a non-polar polymer having a surface tension of <30 mN/m;
the second polymer is a nonpolar polymer with the surface tension more than or equal to 35 mN/m;
the retention length L of the glass fiber in the thermoplastic alloy material is 0.1-1 mm.
The following are to be described:
the thermoplastic alloy material can realize an easy-cleaning effect through the optimized synergistic effect of the resin base material, has good hydrophilicity and heat resistance, is favorable for cleaning the hand mould in the continuous use process, and greatly improves the yield of glove preparation.
The action mechanism of each component of the thermoplastic alloy material is as follows:
the first polymer is a nonpolar polymer with the surface tension less than 30mN/m, and has better acid and alkali resistance; the second polymer is a nonpolar polymer with the surface tension of more than or equal to 35mN/m, has better surface tension and hydrophilic performance, and two special resin matrixes act in a specific synergistic ratio, so that the better acid-base chemical stability of the hand mould can be ensured, the longer service life and the product stability can be obtained, the surface hydrophilicity and the wettability of the hand mould can be obviously improved, the hydrophilicity of the material can be improved under the condition of no additional hydrophilic modifier, and meanwhile, the hand mould has easy cleaning performance.
The glass fiber has the functions of improving the heat resistance and acid and alkali resistance of the material, the retention length of the glass fiber needs to be compatible with the strength requirement of the thermoplastic alloy as a plastic mold material and other components of the system, and the retention length L is in the range of 0.1-1 mm, so that the structural stability of the hand mold during operation can be better realized, the appearance stability of the product is ensured, and the sufficient repeated cleaning service life is ensured.
Preferably, the method comprises the steps of,
the composite material comprises the following components in parts by weight:
the ratio of the first polymer to the second polymer should be kept at a proper ratio, either too high or too low to be effective, when the ratio is kept at 7-8: 2 to 3, more preferably 7: and 3, ensuring that the hand mould has good hydrophilic adhesive property and acid and alkali resistance, ensuring repeated cleaning times by enough acid and alkali resistance, and prolonging the service life of the hand mould.
The hydrophilic modifier has the function of improving the surface hydrophilic performance of the material, which is less than 0.5 part, and the hydrophilic wetting effect of the hydrophilic modifier on the surface appears slower in the use process; when 3 parts or more are added, excessive migration tends to occur, resulting in a decrease in surface properties.
The content of the glass fiber is related to the heat resistance of the final material, the addition amount is less than 10 parts, and the heat resistance improvement effect of the glass fiber on the material is not obvious; when the amount exceeds 25 parts, the heat resistance is significantly improved, but the appearance and surface properties of the material are lowered.
Preferably, the first polymer is a nonpolar polymer with a surface tension of 26-27 mN/m; the second polymer is a nonpolar polymer with a surface tension of 38-43 mmN/m.
Preferably, the first polymer is a polyolefin, a polyphenylene oxide or a polyphenylene sulfide.
Preferably, the polyolefin is a polypropylene resin and/or a cycloolefin copolymer.
The polypropylene resin of the present invention may be homo-polypropylene and/or co-polypropylene.
The cycloolefin copolymer is selected from cycloolefin copolymers obtained by copolymerizing bicycloheptene (norbornene) and ethylene in the presence of a metallocene catalyst.
Preferably, the second polymer is a polyester or a polyamide.
Preferably, the melting point of the polyester ranges from 115 to 233 ℃.
Preferably, the polyester is one or more of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polylactic acid, polyhydroxyalkanoate, polyglycolic acid or polybutylene succinate.
Preferably, the polyamide is one or more of aliphatic or semi-aromatic polyamide with melting point less than or equal to 320 ℃.
For example, one or more of polycaprolactam, polyhexamethylene adipamide, polyhexamethylene sebacamide, polybutylene adipamide, polyhexamethylene sebacamide, polyhexamethylene terephthalamide, polydodecyl lactam or polymetaxylylene adipamide can be used.
The first polymer is polyolefin, polyphenyl ether or polyphenylene sulfide, the upper limit of the processing temperature is 320 ℃, the melting point of the second polymer is too high (more than 320 ℃), the second polymer cannot be processed under normal temperature conditions, and the prepared thermoplastic alloy material has very poor performance (hydrophilicity and acid and alkali resistance) and appearance, so that the melting point of the second polymer needs to be limited to be below 320 ℃.
Preferably, the first polymer is a cycloolefin copolymer and/or a polyphenylene ether;
preferably, the second polymer is one or more of polycaprolactam, polyhexamethylene terephthalamide or m-xylylene adipamide.
The following description is needed:
the polymer of the invention is the surface tension which is measured by using a GB/T14216-2008 standard method, and the unit of the surface tension is mN/m.
Preferably, the retention length L of the glass fibers in the thermoplastic alloy material is 0.2-0.4 mm.
Preferably, the hydrophilic modifier has a weight average molecular weight of 1000-20000 and contains C containing carboxyl, hydroxyl, ester bond and amide group 5 ～C 20 One or a combination of several alkyl oligomers.
The small molecular hydrophilic modifier with the weight average molecular weight of 1000-20000 can further synergistically improve the hydrophilicity of the alloy material of the invention,
preferably, the hydrophilic modifier is at least one of polyethylene glycol octyl phenyl ether, hydroxyl-terminated stearic acid amide, erucic acid amide or pentaerythritol stearate.
Preferably, the grafting compatilizer is 0-5 parts by weight.
The grafting compatilizer can be preferably a graft polymer of polar monomers and polypropylene, wherein the polar monomers are one or more of maleic anhydride, acrylic acid, glycidyl methacrylate and acrylic ester derivatives.
The grafting compatilizer can effectively improve the compatibility between the resin base material and the glass fiber and improve the appearance and mechanical properties of the material.
In practical application, additives such as an antioxidant, a lubricant and the like can be added according to the actual performance requirement.
Wherein, the lubricant also comprises 0 to 1 part of antioxidant and 0 to 0.5 part of lubricant by weight.
The antioxidant can be one or a mixture of several of hindered amine, hindered phenol or phosphite, calixarene and thioester.
The lubricant is one or a mixture of more of amides, metal soaps and low molecular esters.
The grafting compatilizer can improve the system compatibility of the thermoplastic alloy material, the antioxidant can improve the antioxidation effect of the thermoplastic alloy material, and the lubricant can improve the lubrication effect of the thermoplastic alloy material.
The thermoplastic alloy material of the invention can be prepared by adopting a common plastic material preparation method, and specifically comprises the following steps: and uniformly mixing the components, performing melt extrusion and granulation at 200-300 ℃ by a double-screw extruder, and drying to obtain the thermoplastic alloy material.
The thermoplastic alloy material prepared by the method has good wettability and acid and alkali resistance, can be widely applied to the preparation of plastic products, and particularly protects the application of the thermoplastic alloy material in the preparation of plastic molds.
The invention also specifically protects a plastic hand mould which is prepared from the thermoplastic alloy material.
The preparation mode of the plastic hand mould can be injection molding or blow molding.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a thermoplastic alloy material, wherein a resin base material of the thermoplastic alloy material consists of an acid-alkali-resistant first polymer and a hydrophilic second polymer, and the thermoplastic alloy material effectively improves the hydrophilicity and acid-alkali resistance by combining and synergism with glass fibers, a hydrophilic modifier and the like, so that the requirement of repeatedly cleaning a plastic hand mold in the use process can be well met.
The surface tension of the plastic hand mold material prepared by the thermoplastic alloy material can reach more than 40, and the plastic hand mold material has good hydrophilicity, good acid and alkali resistance, easy cleaning and repeated cleaning for up to 4 years.
Drawings
Fig. 1 shows the appearance of a hand mold that can be used normally and that can be tested for heat and acid and alkali resistance.
Figures 2-5 show the appearance of hand molds that fail normal use and do not pass heat and acid and alkali resistance tests.
Detailed Description
The invention will be further described with reference to the following specific embodiments, but the examples are not intended to limit the invention in any way. Raw materials reagents used in the examples of the present invention are conventionally purchased raw materials reagents unless otherwise specified.
Examples 1 to 23
The thermoplastic alloy material comprises the following components in parts by weight:
a first polymer; a second polymer; glass fibers and hydrophilic modifiers, the specific amounts of each component therein are shown in table 1 below.
Wherein the first polymer 1 is a homopolymerized polypropylene resin PP N-Z30S, and the surface tension is 26mN/m, which is a petrochemical group company in China;
the first polymer 2 was a cycloolefin copolymer 6015 having a surface tension of 27mN/m, TOPAS Co;
the first polymer 3 was polyphenylene ether PPE PX100F having a surface tension of 24mN/m, and Asahi Karaoke formation;
the first polymer 4 was polyphenylene sulfide PPS A400M with a surface tension of 25mN/M, torile, japan;
the first polymer 5 was polystyrene PS 350K with a surface tension of 34mN/m and a plateau group.
The second polymer 1 is polycaprolactam PA 6M 2800, the surface tension is 43mN/M, the melting point is 220 ℃, and the Neumeda is obtained;
the second polymer 2 is polybutylene terephthalate PBT GX112, the surface tension is 36mN/m, the melting point is 233 ℃, and chemical fiber is detected;
the second polymer 3 is polylactic acid PLA 4032D with a surface tension of 38mN/m and a melting point of 175 ℃, nature works in America;
the second polymer 4 is poly (hexamethylene terephthalamide) PA6T C645 with a melting point of 310 ℃ and a surface tension of 41mN/m, japan three well chemistry;
the second polymer 5 was poly (m-xylylenediamine-adipamide) MXD6 having a melting point of 265 ℃ and a surface tension of 39mN/m, mitsubishi chemical japan;
the second polymer 6 is polyhydroxyalkanoate with a melting point of 165 ℃ and a surface tension of 44mN/m, and is a gold hair technology;
the second polymer 7 is polyglycolic acid, the melting point is 230 ℃, the surface tension is 46mN/m, and the technology of gold hair is adopted;
the second polymer 8 is poly butylene succinate, the melting point is 115 ℃, the surface tension is 47mN/m, and the technology of gold hair is adopted;
the second polymer 9 is ABS resin ABS 8391 with a melting point of about 190 ℃ and a surface tension of 32mN/m, which is a company of China petrochemical industry;
glass fiber ECS10-03-508A, diameter 10 μm, original length 3mm, china boulder Co., ltd;
the hydrophilic modifier 1 is hydroxyl-terminated stearic acid amide, has a weight average molecular weight of 5000 and is a gold hair technology;
the hydrophilic modifier 2 is polyethylene glycol octyl phenyl ether, the weight average molecular weight is 20000, and the Dow chemical;
the hydrophilic modifier 3 is erucamide, the weight average molecular weight is 1000, and the chemical formula of Hedaxipu is shown in the specification;
the hydrophilic modifier 4 is pentaerythritol stearate with a weight average molecular weight of 5000 and Germany Corning;
grafting compatilizer: polypropylene grafted maleic anhydride, a good Yi Rong compatibilizer, jiangsu limited;
and (3) a lubricant: EBS, china Ming Tai chemical Co., ltd;
an antioxidant: thanox 1010; tianjin Li Anlong New Material stock Co.Ltd.
Table 1 thermoplastic alloy material compositions (in parts by weight) of the examples
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| First Polymer 1 | 70 | |||||||||||||
| First Polymer 2 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | |||
| First Polymer 3 | 70 | |||||||||||||
| First Polymer 4 | 70 | |||||||||||||
| Second Polymer 1 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | |||||||
| Second onePolymer 2 | 30 | |||||||||||||
| Second Polymer 3 | 30 | |||||||||||||
| Second Polymer 4 | 30 | |||||||||||||
| Second Polymer5 | 30 | |||||||||||||
| Second Polymer 6 | 30 | |||||||||||||
| Second Polymer 7 | 30 | |||||||||||||
| Second Polymer 8 | 30 | |||||||||||||
| Glass fiber 1 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Hydrophilic modifier 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||
| Hydrophilic modifier 2 | 1 | |||||||||||||
| Hydrophilic modifier 3 | 1 | |||||||||||||
| Hydrophilic modifier 4 | 1 | |||||||||||||
| Grafting compatibiliser | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Lubricant | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Antioxidant | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Continuing with table 1:
the preparation method of the thermoplastic alloy material specifically comprises the following steps:
and uniformly mixing the components, performing melt extrusion and granulation at 200-300 ℃ by a double-screw extruder, and drying to obtain the thermoplastic alloy material.
Comparative examples 1 to 7
The thermoplastic alloy material comprises the following components in parts by weight:
a first polymer; a second polymer; glass fibers and hydrophilic modifiers, the specific amounts of each component therein are shown in table 2 below.
Table 2 thermoplastic alloy material compositions (in parts by weight) of the respective comparative examples
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| First Polymer 2 | 50 | 0 | 100 | 70 | 70 | 70 | |
| First Polymer 5 | 70 | ||||||
| Second Polymer 1 | 50 | 100 | 0 | 30 | 30 | 30 | |
| Second Polymer 9 | 30 | ||||||
| Glass fiber 1 | 20 | 20 | 20 | 35 | 20 | 20 | 20 |
| Hydrophilic modifier | 1 | 1 | 1 | 1 | 6 | 1 | 1 |
| Grafting compatibiliser | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Lubricant | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Antioxidant | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
The preparation method of the thermoplastic alloy material specifically comprises the following steps:
and uniformly mixing the components, performing melt extrusion and granulation at 200-300 ℃ by a double-screw extruder, and drying to obtain the thermoplastic alloy material.
Result detection
The plastic hand mold is prepared from the thermoplastic alloy material by an injection molding method, and the steps are as follows:
n1. the thermoplastic alloy materials of the examples and the comparative examples are dried, and left and right single-side pieces are injection molded by an injection molding machine;
and N2, bonding the left and right single side pieces to obtain a complete plastic hand mold product.
The thermoplastic alloy materials of the above examples and comparative examples, or hand molds made of the above thermoplastic alloy materials, were each tested by the following performance test methods:
hydrophilicity of thermoplastic alloy material: according to the GB/T14216-2008 standard method, the hydrophilicity of the material is characterized by adopting the surface tension, and the higher the surface tension is, the better the hydrophilicity is.
Determination of glass fiber retention length L in thermoplastic alloy material: the glass fiber retention length (average) in the material was determined according to the ISO 22314-2006 standard method.
Hand mold performance:
cleaning-resistant life: the service life of the hand mould is evaluated by adopting a continuous operation method, the operation time of the hand mould is about 1h (720 times per month) according to the standard nitrile glove production process, the operation is 34560 times, the hand mould is cleaned 34560 times, the hand mould is observed every 720 times, whether the phenomena of embrittlement, pits, surface roughness and the like of the hand mould occur in the operation process are evaluated, meanwhile, whether the glove yield is obviously reduced (the use is judged when the yield is lower than 95 percent), and when obvious appearance defects appear on the hand mould or the glove yield is obviously reduced (as shown in figures 2-5), the hand mould is not continuously used, and the related cleaning times are recorded as the cleaning-resistant service life (times) of the hand mould.
Heat resistance: and (3) placing the hand mould in a baking oven at 120 ℃ for baking for 8 hours, evaluating the deformation or softening condition of the hand mould, wherein the hand mould is not passed when the hand mould is subjected to obvious deformation or softening phenomenon (shown in figures 2-5) after being baked, and is passed when the hand mould is not subjected to obvious deformation or softening phenomenon (shown in figure 1).
Acid and alkali resistance (acid and alkali resistance): the hand mould is firstly soaked in a nitric acid solution with the mass concentration of 5% at 70 ℃ for two weeks, then soaked in a sodium hydroxide solution with the mass concentration of 5% at 70 ℃ for two weeks, taken out and observed, and the hand mould is not passed through the phenomena of embrittlement, pits, surface roughness and the like (shown in figures 2-5) after being soaked in acid and alkali, and is not passed through the phenomena (shown in figure 1).
The solvents used for cleaning the hand mould materials in the field comprise oxalic acid (with the mass concentration of 10%) and potassium hydroxide (with the mass concentration of 5%) solutions, the hand moulds prepared by the hand mould materials and the comparative example materials are soaked in the solvents, the hand moulds are taken out and observed after two weeks, the hand moulds cannot be embrittled, pit, rough surface and the like after being soaked by acid and alkali, and the hand moulds cannot pass through the solvents.
Specific test results are shown in Table 3 below:
the plastic hand mold material prepared from the thermoplastic alloy material has good hydrophilicity, surface tension of more than 40, excellent acid and alkali resistance, repeated cleaning and use for more than 4 years and cleaning life of 34560 times.
The plastic hand mold material prepared from the thermoplastic alloy material can be suitable for washing with an acid-base solution of 5% nitric acid solution, 5% sodium hydroxide solution, 10% oxalic acid solution and 5% potassium hydroxide solution which are commonly used in the field, and further proves that the plastic hand mold material has good acid-base resistance, and the phenomena of embrittlement, pits, surface roughness and the like still do not occur after the hand mold is soaked for two weeks in acid-base.
The results of the measurement of the retained length L of glass fibers in a thermoplastic alloy material are shown in Table 4 below
TABLE 4 Table 4
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (4)
1. The thermoplastic alloy material is characterized by comprising the following raw material components in parts by weight:
wherein the first polymer is a nonpolar polymer with a surface tension of 24-27 mN/m; the first polymer is one or more of polyolefin, polyphenyl ether or polyphenylene sulfide; the polyolefin is polypropylene resin and/or cycloolefin copolymer;
the second polymer is polyester and/or polyamide; the melting point range of the polyester is 115-233 ℃; the polyester is one or more of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polylactic acid, polyhydroxyalkanoate, polyglycolic acid or polybutylene succinate; the polyamide is one or more of aliphatic or semi-aromatic polyamide with the melting point less than or equal to 320 ℃; the surface tension of the second polymer is 38-45 mN/m;
the retention length L of the glass fiber in the thermoplastic alloy material is 0.1-1 mm.
2. The thermoplastic alloy material of claim 1, wherein the glass fibers in the thermoplastic alloy material have a retained length L of 0.2 to 0.4mm.
3. Use of a thermoplastic alloy material according to any one of claims 1-2 for the preparation of a plastic mould.
4. A plastic hand mould, characterized in that it is produced from the thermoplastic alloy material according to any one of claims 1-2.
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| CN202110860168.XA CN113789004B (en) | 2021-07-28 | 2021-07-28 | Thermoplastic alloy material, application thereof in preparation of plastic mold and prepared hand mold |
| PCT/CN2022/107109 WO2023005801A1 (en) | 2021-07-28 | 2022-07-21 | Thermoplastic alloy material, use thereof in preparation of plastic mold, and hand mold prepared therefrom |
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| CN113789004B (en) * | 2021-07-28 | 2023-07-07 | 广东金发科技有限公司 | Thermoplastic alloy material, application thereof in preparation of plastic mold and prepared hand mold |
| CN114456598B (en) * | 2022-03-09 | 2023-09-12 | 金发科技股份有限公司 | Glass fiber reinforced polyphenylene sulfide composition and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5409763A (en) * | 1992-12-25 | 1995-04-25 | Polyplastics Co., Ltd. | Long-fiber-reinforced polyolefin resin structure and article molded therefrom |
| CN104350188A (en) * | 2012-05-04 | 2015-02-11 | 朗盛德国有限责任公司 | Thermoplastic fibres with reduced surface tension |
| CN104718247A (en) * | 2012-08-30 | 2015-06-17 | 昭和最佳手套公司 | Biodegradable compositions, methods and uses thereof |
| CN105111485A (en) * | 2015-09-09 | 2015-12-02 | 滁州迪蒙德模具制造有限公司 | Manufacturing method of mold |
| CN111480923A (en) * | 2020-05-26 | 2020-08-04 | 安徽攀望科技有限公司 | Degradable nitrile rubber glove forming preparation method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863191A3 (en) * | 1997-03-05 | 1999-01-27 | Nippon Paint Co., Ltd. | Raindrop fouling-resistant paint film, coating composition, film-forming method, and coated article |
| EP2857455B1 (en) * | 2013-10-03 | 2018-05-30 | Ems-Patent Ag | Polyamide moulding compositions containing cycloolefin copolymers |
| US9921526B2 (en) * | 2015-01-09 | 2018-03-20 | Ricoh Company, Ltd. | Semiconductive resin composition, member for electrophotography and image forming apparatus |
| CN107200928A (en) * | 2017-07-24 | 2017-09-26 | 江苏莘翔机电有限公司 | A kind of glass fiber reinforced polypropylene nylon composite materials and preparation method thereof |
| CN110256767A (en) * | 2019-07-26 | 2019-09-20 | 东莞市众一新材料科技有限公司 | A kind of high-strength septic tank plastics and preparation method thereof |
| CN113980410B (en) * | 2021-07-22 | 2022-10-04 | 广东金发科技有限公司 | Thermoplastic polyolefin material and preparation method and application thereof |
| CN113717460A (en) * | 2021-07-22 | 2021-11-30 | 广东金发科技有限公司 | High-surface-hydrophilicity polypropylene composite material and preparation method and application thereof |
| CN113789004B (en) * | 2021-07-28 | 2023-07-07 | 广东金发科技有限公司 | Thermoplastic alloy material, application thereof in preparation of plastic mold and prepared hand mold |
-
2021
- 2021-07-28 CN CN202110860168.XA patent/CN113789004B/en active Active
-
2022
- 2022-07-21 WO PCT/CN2022/107109 patent/WO2023005801A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5409763A (en) * | 1992-12-25 | 1995-04-25 | Polyplastics Co., Ltd. | Long-fiber-reinforced polyolefin resin structure and article molded therefrom |
| CN104350188A (en) * | 2012-05-04 | 2015-02-11 | 朗盛德国有限责任公司 | Thermoplastic fibres with reduced surface tension |
| CN104718247A (en) * | 2012-08-30 | 2015-06-17 | 昭和最佳手套公司 | Biodegradable compositions, methods and uses thereof |
| CN105111485A (en) * | 2015-09-09 | 2015-12-02 | 滁州迪蒙德模具制造有限公司 | Manufacturing method of mold |
| CN111480923A (en) * | 2020-05-26 | 2020-08-04 | 安徽攀望科技有限公司 | Degradable nitrile rubber glove forming preparation method |
Non-Patent Citations (2)
| Title |
|---|
| Dynamic Rheological Properties of Binary PPPA and Ternary PP/PA/GF Blends;D. BENDERLY et al;《POLYMER COMPOSITES》;第第19卷卷(第第2期期);第133-138页 * |
| 玻璃纤维增强聚丙烯/聚酰胺6合金的研究;刘乐文等;《塑料工业》;第第48卷卷(第第10期期);第65-69页 * |
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| CN113789004A (en) | 2021-12-14 |
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