CN111574786A

CN111574786A - Preparation method and use method of low-temperature plasticized orthopedic gloves

Info

Publication number: CN111574786A
Application number: CN202010453769.4A
Authority: CN
Inventors: 田雪伟
Original assignee: Anhui Panwang Technology Co ltd
Current assignee: Anhui Panwang Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-08-25

Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a preparation method and a use method of low-temperature plasticizing orthopedic gloves, wherein all indexes disclosed by the invention reach international and domestic standards, the low-temperature plasticizing orthopedic gloves have good plasticizing performance at 65 ℃, can be directly molded on hands, have high compliance, protect palms, fingers and other smaller joint cases, can mold the shape of a hand bow, are suitable for patients losing holding functions, can help to recover the functions of holding pens, spoons and other articles, have a gripping orthopedic function, are suitable for protecting and orthopedic injuries of hand fracture and injury, are convenient to use, can be cut for use according to the actual application condition of palms, have good memory capacity, can be repeatedly subjected to thermoplastic molding, so that medicine application and treatment at affected parts are facilitated, and have no viscosity, ventilation and sweat releasing properties, are transparent to wear, and are comfortable to fit.

Description

Preparation method and use method of low-temperature plasticized orthopedic gloves

Technical Field

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method and a use method of low-temperature plasticized orthopedic gloves.

Background

Orthosis applications relate to the treatment of many diseases in rehabilitation medicine, such as osteoarticular diseases, central diseases, neuromuscular diseases, sexual diseases, burns, tumors, etc. While the types of orthoses used for these ailments vary, the therapeutic principles are essentially the same, i.e., providing braking, alignment, and assistance or restriction to limb function. In the case of orthotics, there are protective, fixing, corrective, auxiliary and compensatory effects. Some orthoses only have single treatment effect, and some orthoses simultaneously have multiple treatment effects. The high polymer materials are divided into two categories, namely thermoplastic and thermosetting, and the thermoplastic is widely applied to manufacturing orthotics. The low-temperature thermoplastic sheet has good plasticity and can be directly molded on limbs. The manufacturing process is simple and quick, and the processing and the modification are easy. Particularly, when limb protection or auxiliary treatment needs to be provided quickly, the maneuverability, flexibility and convenience of the device are displayed more fully, and the device is one of the common treatment techniques of orthotics, operation therapists and physical therapists. The low-temperature thermoplastic plate has lower strength compared with the high-temperature thermoplastic plate, so the low-temperature thermoplastic plate is mainly used for manufacturing and configuring an upper limb orthosis, and part of the low-temperature thermoplastic plate is used for stabilizing the trunk and the lower limbs or maintaining the normal body position, and is not suitable for the parts with heavy load or over-stress of the limbs except the limbs of the children. Bone and joint injuries are common diseases in rehabilitation, mainly affect the motion function of patients, and inevitably cause structural damage of joints and contracture of soft tissues if the treatment is not proper or early prevention and treatment is not carried out, and finally cause limb disabilities. The upper limb has more fractured and well-developed parts, and the treatment principle of rehabilitation is restoration, fixation, edema elimination and functional training. In the early stage after fracture reduction, the static orthosis is adopted for fixation, so that the normal physiological alignment of bones and joints can be maintained, the absorption of edema and inflammation is promoted, and the limb pain is relieved. Fracture fixation is generally long, and long-term braking can cause muscle disuse atrophy, joint dysfunction and bone density reduction. Thus, during functional training, the training of muscles is aided by dynamic orthotics to maintain the normal volume, elasticity and function of the muscles. Namely, manual reduction is carried out, and the orthopedic device can be used for fixing after reduction so as to keep the functional position of the joint, promote the repair of tissues such as joint ligaments and tendons, eliminate swelling and relieve pain. For patients with old dislocation and difficult manual reduction, surgical incision reduction and orthopedic fixation are usually selected, and isometric muscle training is required to maintain muscle tension and promote muscle tension

It heals. If the upper limb joint dislocation is within 3 weeks, manual reduction should be performed immediately, and the reduction can be fixed by an orthosis to maintain the functional position of the joint, promote the repair of tissues such as joint ligaments and tendons, eliminate swelling and relieve pain. For patients with old dislocation and difficult manual reduction, surgical incision reduction is usually selected, then orthopedic fixation is performed, and isometric training of muscles is required to maintain the tension of the muscles and promote the healing of the muscles. For example, CN2007100264546 discloses a low-temperature thermoplastic sheet material, which is pre-shrunk, and the processed low-temperature thermoplastic sheet material does not shrink or deform when being used by an operator, CN2018115481680 discloses a low-temperature thermoplastic sheet material and a preparation method thereof, which use polylactic acid and polycaprolactone, and ensure that the mechanical strength of each part of the sheet material is consistent, however, although the low-temperature plasticizing sheet material can be used for reshaping other parts of the body, the low-temperature thermoplastic sheet material is mainly used for manufacturing an accepting cavity of a partial temporary artificial limb in the manufacturing of the artificial limb at present, hands keep a curling state or a semi-curling state, and the reshaping of the hands cannot depend on the sheet material for reshaping, and the sheet material cannot do reshaping properly but damage to the hands, the existing plasticized low-temperature material has high strength, cannot adapt to the hand application with a complicated shape, and cannot prepare reshaping gloves, while the existing common gloves have no reshaping, however, a low-temperature plasticized glove with an orthopedic function is not the second choice for hand orthopedic, but in the current market, there are no corresponding products and technologies for low-temperature plasticized orthopedic gloves, and for hand orthopedic, people can only rely on plaster and the like for orthopedic due to special structure and structural attributes of hands, but plaster is heavy in weight, poor in comfort and aesthetic property, and cannot meet the current use requirements, so that technical personnel in the field need to develop a preparation method and a use method of the low-temperature plasticized orthopedic glove to meet the current market requirements and use requirements.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a preparation method and a use method of low-temperature plasticized orthopedic gloves.

The invention is realized by the following technical scheme:

a preparation method of a low-temperature plasticized orthopedic glove comprises the following steps:

firstly, weighing the following raw materials in parts by weight: 26-35 parts by mass of a softener, 36-44 parts by mass of linear polyester, 12-15 parts by mass of chlorinated polypropylene, 1-2 parts by mass of an activation crosslinking agent, 115-123 parts by mass of a vinyl chloride-vinyl acetate-maleic resin, 10-15 parts by mass of a rheological viscosity reducer, 13-15 parts by mass of Baiyanghua CC and 2-4 parts by mass of white carbon black;

at present, polyvinyl chloride gloves are widely used in daily life, have a sanitary protection effect, are convenient to use, have good protection performance, are safe and non-toxic, are deeply welcomed by users, and have a wide market, but the polyvinyl chloride gloves do not have the low-temperature plasticizing and reshaping capacity like other common gloves, the paste resin taking a vinyl chloride-vinyl acetate-maleic acid copolymer as a main body is different from polyvinyl chloride and vinyl chloride-vinyl acetate resin, and the molecular structure of the polyvinyl chloride gloves is equivalent to introducing vinyl acetate and carboxylic acid groups into a polyvinyl chloride molecular chain, so that the good internal plasticizing effect can be achieved, the softening temperature is obviously reduced, the polyvinyl chloride gloves serve as the precondition for having the low-temperature plasticizing and reshaping glove main body resin, and as the polyvinyl chloride gloves have carboxylic acid groups, the polyvinyl chloride gloves have the condition of ionic bond activity reversible crosslinking for further participating in reaction, and have interaction or association, the high-strength orthopedic protection effect is formed by low-temperature plasticization due to the crosslinking effect, and after low-temperature plasticization again, the plastic can be further repeatedly formed due to reversible crosslinking, and the plastic comprises polyvinyl chloride, vinyl chloride-vinyl acetate copolymer and the like, which do not have the above effects and are one of the important factors that the raw materials are difficult to plasticize at low temperature. In the practical experience of processing the long polyvinyl chloride gloves, people can not avoid the obstacle that low-temperature plasticizing processing can not be realized due to the high melting temperature of the PVC gloves, and can not break through the limitation that repeated processing can not be realized if a cross-linking agent is used for assisting low-temperature plasticizing shaping, but in a large number of production tests, the paste resin taking the vinyl chloride-vinyl acetate-maleic acid copolymer as the main body can be used for preparing the gloves through low-temperature plasticizing, and can also realize the application of shaping the hands by the gloves after cooling due to the reversible cross-linking characteristic of ionic bond activity, and can be repeatedly shaped and reused after low-temperature plasticizing again. The generated crosslinking effect is reversible in activity and is different from the original covalent bond crosslinking effect, so that the orthopedic gloves can be reused, the operations such as dressing change, repositioning and the like can be realized quickly and conveniently, and PVC, vinyl chloride-vinyl acetate resin and the like are not available. The application uses the chlorinated polypropylene with lower melting point, the chlorinated polypropylene has the chlorine content and the distribution of chlorine atoms on the ethylene main chain, the chlorinated polypropylene can improve the mechanical strength of the glove and the processing performance of the glove, the melting point is low, about 80 ℃, the chlorinated polypropylene has better compatibility with vinyl chloride-vinyl acetate-maleic acid copolymer, and the chlorinated polypropylene can play the role of a plasticizer on the basis of improving the strength of the glove. The invention also uses linear polyester, has poor heat resistance, has little practical value in the prior additive manufacturing, but has low price and wide source, but the structural unit of the invention contains ether bond, so that the free rotation of molecular chain bond is easy, the flexibility of the material is improved, and the low-temperature plasticizing capability is further improved.

Then, adding 25% of total usage amount of softener and chlorinated polypropylene into a mixer, dispersing at high speed for 2-3 min, then adding vinyl chloride-acetate-maleic resin and white carbon black, and a rheological viscosity reducer, stirring for 10min, mixing the white brilliant CC and the rest of the softener to prepare paste, grinding the paste by a three-roll mill until the fineness is less than or equal to 100 mu m, adding the paste into the mixer, stirring for 10-30 min, controlling the material temperature by cooling external circulating water to be 30-35 ℃, adding linear polyester and an activation crosslinking agent, stirring for 10-15 min, curing and standing at 45-50 ℃ for 12-24 h to obtain cured sol;

secondly, the glove is formed by adopting a slush molding blow molding process: pouring the cured sol into a glove molding slush molding die preheated to 55-60 ℃, slowly pressing the cured sol into the glove molding slush molding die by using a solid male die similar to the appearance shape of the glove, compacting under the pressure of 0.1-0.2 MPa, during the compacting, performing glove molding slush molding die, simultaneously performing air exhaust on an exhaust hole of the glove molding slush molding die, enabling the glove gel to be completely attached to the inner cavity of the die under the vacuum degree of 0.005-0.01 MPa, pouring out the redundant sol plastic, withdrawing the solid male die, blowing hot compressed air into the glove molding slush molding die, enabling the glove gel to be tightly attached to the die cavity, cooling to 25-30 ℃ after 10-15 s, then opening the die, and removing burrs and miscellaneous strips to obtain the low-temperature plasticized orthopedic glove.

In the above steps, the gloves are formed by using a slush molding blow molding method, because the gloves can be plasticized at a low temperature, the gloves are different from the former glove forming mode, and the high temperature can be avoided by using slush molding blow molding, so that the temperature of the formed slush molding die, air suction in the solid male die pressing process and hot air blowing have a remarkable influence on the glove forming, and the defects of the gloves are caused by too low temperature, too fast air suction and improper hot air blowing.

In a further scheme, the linear polyester can be one of polyethylene glycol suberate, polypropylene glycol adipate and polypropylene glycol sebacate, and the molecular weight of the linear polyester is 1000-8000.

In a further embodiment, the activated crosslinking agent comprises zinc methacrylate, glycerol methacrylate, or a mixture thereof.

In a further scheme, the temperature of the hot compressed air in the step (3) is 60-65 ℃, and the pressure is 0.3-0.4 MPa.

In a further scheme, the rheological viscosity reducer can be one of chloromaleate resin, chloropropane resin, epichlorohydrin resin and 2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate.

The rheological viscosity reducer has stable chemical properties, is not easy to mix air bubbles in a solution, can keep the smoothness and the beauty of gloves, has a certain plasticizing effect and lower molecular mobility, and can endow products with good cold resistance and water resistance.

In a further embodiment, the softening agent may be one or more selected from amide propyl dimethylamine oleate, methyl stearate chloride and myristyl propionate.

The using method of the low-temperature plasticizing orthopedic glove is characterized in that the low-temperature plasticizing glove with the corresponding paper re-engraving size is cut and formed according to the shape size of the hand of a patient, the cut and formed low-temperature plasticizing glove is placed in hot water of 60-65 ℃ or heated by a hot blower to be softened, and the softened low-temperature plasticizing orthopedic glove is transferred to the hand of the patient to be quickly plasticized, cooled and hardened, so that the orthopedic glove can be used

The chlorine vinegar Ma paste resin is MC39 of Wuxi Honghu new material or MVAM of she county Xinfeng chemical industry Co.

The invention has the beneficial effects that:

the linear polyester used in the invention is a polyester resin prepared from saturated dibasic acid and dihydric alcohol, wherein the linear polyester prepared from aliphatic dibasic acid and dihydric alcohol has low melting point and poor heat resistance, has little practical value in the prior additive manufacturing, but has low price and wide source, but the structural unit of the linear polyester contains ether bond, so that the free spin transformation of molecular chain bond is easy, the flexibility of the material is improved, the low-temperature plasticizing capability is further improved, the linear polyester molecule can be inserted into the middle of the macromolecular chain of the resin, the distance between molecules is increased, the acting force between molecules is weakened, the melting viscosity is reduced, and the low-temperature plasticizing capability of the glove is further improved. Because the orthopedic gloves have the capacity of low-temperature plasticization through the interaction of all components, the low-temperature plasticization temperature of the low-temperature plasticization gloves is far lower than the decomposition temperature of the main resin and all raw materials in the gloves, and a large amount of heat-activated cross-linking agents are used in the gloves like the conventional PVC gloves.The zinc methacrylate used may form-COO between the vinyl chloride-vinyl acetate copolymer^-Zn²⁺COO^-The crosslinked structure of (a), the association of which is destroyed when heated by hot water immersion or by a hair dryer, can be thermoplastically processed and restored after cooling, thus achieving the orthotic action of the glove, which is enhanced by the chlorinated polypropylene with good compatibility therewith. The use of chlorinated polypropylene, viscosity reducer and the like not only improves the processing performance of the glove, reduces the viscosity and facilitates the processing, but also can not be adhered to palm skin during low-temperature plasticization. White carbon black and brilliant CC's use can not cause the influence to the transparency of gloves, and the intensity of gloves that improves moreover, and the increase of use amount will improve the heat-resisting temperature of material, and low temperature plastify performance will worsen, and the material of this application is translucent before the heating, can become transparent after heating, is transparent material, and bony prominence and skin fold and wound position can directly be observed to this material when moulding, can avoid the adverse effect that orthopedic ware caused the limbs part, this is not possessed with low temperature thermoplasticity panel and gypsum orthopedic material formerly, has more excellent aesthetic function. The cooling shaping time is long, and it has sufficient time to accomplish shaping to guarantee to satisfy skilled moulding teacher, and through soaking the lower water of temperature, like the water of room temperature, can realize quick orthopedic shaping.

Compared with the prior art, the invention has the following advantages:

the preparation method of the low-temperature plasticized orthopedic glove disclosed by the invention is simple, convenient and feasible, the raw material sources are widely different from the conventional low-temperature thermoplastic sheet materials, the glove has good plasticizing performance at 65 ℃, can be directly molded on a hand, has high compliance, protects palm, fingers and other small joint cases, can mold the shape of a hand arch, is suitable for a patient losing a holding function, can help to recover the function of holding pens, spoons and other articles, has a gripping and orthopedic function, is suitable for protecting and orthopedic treatment of hand fracture and injury, is convenient to use, can be cut for use according to the actual application condition of the palm, has good memory capacity, can be repeatedly used and detached in a thermoplastic mode, is convenient for medicine application and treatment on an affected part, has no viscosity, is breathable and sweat-releasing, and is comfortable to wear.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.

Example 1

Firstly, weighing the following raw materials in parts by weight: 115 parts by mass of a chlorine vinegar horse paste resin, 10 parts by mass of a rheological viscosity reducer 2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate, 35 parts by mass of a softening agent methyl stearate chloride, 44 parts by mass of linear polyester, 15 parts by mass of chlorinated polypropylene, 2 parts by mass of an activated crosslinking agent zinc methacrylate, 15 parts by mass of white brilliant CC and 4 parts by mass of white carbon black; secondly, adding 25 percent of softener methyl stearate chloride and chlorinated polypropylene into a mixer, dispersing at a high speed for 3min, then adding vinyl chloride-acetate-maleic resin, white carbon black and a rheological viscosity reducer, stirring for 10min, mixing the brilliant CC and the rest softener methyl stearate chloride to prepare paste, grinding the paste by a three-roll mill until the fineness is less than or equal to 100 mu m, adding the paste into the mixer, stirring for 130min, controlling the material temperature by using cooling external circulating water at 35 ℃, adding linear polyester and an activation crosslinking agent zinc methacrylate, stirring for 15min, curing and standing for 24h at 50 ℃ to obtain cured sol; thirdly, forming the gloves by adopting a slush molding blow molding process: pouring the cured sol into a glove molding slush molding die preheated to 60 ℃, slowly pressing the cured sol into the glove molding slush molding die by using a solid male die similar to the appearance shape of the glove, compacting under the pressure of 0.2MPa, during the compacting, exhausting the glove molding slush molding die, and simultaneously exhausting the exhaust holes of the glove molding slush molding die, wherein the vacuum degree of the exhaust is 0.01MPa, so that the glove gel is completely attached to the inner cavity of the die, pouring out the redundant sol plastic, withdrawing the solid male die, blowing hot compressed air with the temperature of 65 ℃ and the pressure of 0.4MPa into the glove molding slush molding die, so that the glove gel is tightly attached to the die cavity, cooling to 30 ℃ after 15s, opening the die, removing burrs and sundries, and obtaining the low-temperature plasticized gloves, wherein the linear polyester comprises polyethylene glycol suberate and has the molecular weight of 8000, and the use method of the low-temperature plasticized gloves is to re-engrave, cutting and shaping low-temperature plasticized gloves with corresponding size of the repeatedly-engraved paper, putting the gloves in hot water of 65 ℃ until the gloves are softened, transferring the gloves to the hands of patients for quick molding, cooling and hardening, and thus obtaining the gloves

Example 2

Firstly, weighing the following raw materials in parts by weight: 12 parts by mass of chlorinated polypropylene, 1 part by mass of an activated crosslinking agent, 13 parts by mass of white brilliant CC and 2 parts by mass of white carbon black, 123 parts by mass of a chlorine vinegar horse paste resin, 15 parts by mass of a rheological viscosity reducer, 26 parts by mass of a softener and 36 parts by mass of linear polyester; secondly, adding 25 percent of softener and chlorinated polypropylene in the total usage amount into a mixer, dispersing at a high speed for 2min, then adding white carbon black, rheological viscosity reducer and vinyl chloride-acetate-maleic anhydride resin, stirring for 10min, mixing the white brilliant CC and the rest of softener to prepare paste, grinding the paste by a three-roll mill until the fineness is less than or equal to 100 mu m, adding the paste into the mixer, stirring for 10min, controlling the material temperature by cooling external circulating water to be 30 ℃, adding linear polyester and activated cross-linking agent, stirring for 10min again, curing and standing for 24h at 50 ℃ to obtain cured sol; thirdly, forming the gloves by adopting a slush molding blow molding process: pouring the cured sol into a glove molding slush molding die preheated to 60 ℃, slowly pressing the cured sol into the glove molding slush molding die by using a solid male die similar to the appearance shape of the glove, compacting, wherein the pressure is 0.2MPa, during the compacting, the glove molding slush molding die is simultaneously used for exhausting air from an exhaust hole of the glove molding slush molding die, the vacuum degree of the air exhaust is 0.01MPa, so that the glove gel is completely attached to the inner cavity of the die, the redundant sol plastic is poured out, the solid male die is withdrawn, then the glove molding slush molding die is blown with air with the temperature of 65 ℃, the pressure of 0.4MPa and hot compressed air, so that the glove gel is tightly attached to the die cavity, after 15s, cooling to 30 ℃, opening the die and removing burrs and miscellaneous strips, and obtaining the low-temperature plasticized orthopedic glove, wherein the softening agent is oleamide propyl dimethylamine, the rheological viscosity reducer is chloropropyl resin, and the linear polyester comprises polyethylene glycol octanedioate, the use method of the low-temperature plasticizing orthopedic glove comprises the steps of shearing and forming the low-temperature plasticizing glove with the corresponding paper re-etching size according to the shape size of the hand of a patient, heating the low-temperature plasticizing glove with a 600W hot air blower for 0.5 minute until the glove is softened, transferring the glove to the hand of the patient for rapid plastic forming, cooling and hardening, and thus obtaining the orthopedic glove with the molecular weight of 1000 and the activated crosslinking agent comprising the glycerol methacrylate

Comparative example 1

This comparative example 1 compares to example 1 in step 1, where no softener is used, except that the process steps are the same.

Comparative example 2

This comparative example 2 compares to example 2 in that no linear polyester is used in step 1, except that the process steps are otherwise the same.

Comparative example 3

This comparative example 3 compares to example 2 in step 1, where no activated crosslinker is used, except that the process steps are otherwise the same.

Comparative example 4

This comparative example 4 compares to example 2 in step 1, which uses no rheological viscosity reducer, except that the process steps are the same.

The performance test results of the low-temperature plasticized orthopedic gloves of examples 1-2 and comparative examples 1-4 are shown in table 1:

TABLE 1 comparison of Performance tests on Low-temperature plasticized orthopedic gloves of examples and comparative examples 1-4

Note: refer to GB12624-1990 labor protection gloves general technical conditions GB/T13022-1991 Plastic film tensile Property test method type IV 150mm 15mm, the tensile speed is 50 mm/min; GB/T18843-2002 PVC gloves prepared by the preparation method disclosed by the invention have good application value, because the low-temperature thermoplastic gloves are sensitive to heat, and can be deformed when a glove user approaches a hot pot, an oven, boiling water and an electric iron, which is an inherent defect of the low-temperature plasticizing hand orthopedic gloves.

Claims

1. A preparation method of low-temperature plasticized orthopedic gloves is characterized by comprising the following steps:

weighing the following raw materials in parts by weight: 115-123 parts by mass of a vinyl chloride-vinyl acetate-maleic resin, 10-15 parts by mass of a rheological viscosity reducer, 26-35 parts by mass of a softener, 36-44 parts by mass of a linear polyester, 12-15 parts by mass of chlorinated polypropylene, 1-2 parts by mass of an activation crosslinking agent, 13-15 parts by mass of brilliant CC and 2-4 parts by mass of white carbon black;

adding 25% of total usage amount of softener and chlorinated polypropylene into a mixer, dispersing at high speed for 2-3 min, then adding vinyl chloride-vinyl acetate-maleic resin, white carbon black and rheological viscosity reducer, stirring for 10min, mixing brilliant CC with the rest of the softener to prepare paste, grinding the paste by a three-roll mill until the fineness is less than or equal to 100 mu m, adding the paste into the mixer, stirring for 10-30 min, controlling the material temperature by cooling external circulating water at 30-35 ℃, adding linear polyester and an activation crosslinking agent, stirring for 10-15 min, curing and standing at 45-50 ℃ for 12-24 h to obtain cured sol;

the molding of the glove is carried out by adopting a slush molding and blow molding process: pouring the cured sol into a glove molding slush molding die preheated to 55-60 ℃, slowly pressing the cured sol into the glove molding slush molding die by using a solid male die similar to the appearance shape of the glove, wherein the compression pressure is 0.1-0.2 MPa, during the compression, the glove molding slush molding die is simultaneously used for exhausting air from an exhaust hole of the glove molding slush molding die, the vacuum degree of the exhaust air is 0.005-0.01 MPa, so that the glove gel is completely attached to the inner cavity of the die, the redundant sol plastic is poured out, the solid male die is withdrawn, hot compressed air is blown into the glove molding slush molding die, so that the glove gel is tightly attached to the die cavity, after 10-15 s, cooling to 25-30 ℃, opening the die, and removing burrs and miscellaneous strips to obtain the low-temperature plasticized glove.

2. The method for preparing a low-temperature plasticized orthopedic glove according to claim 1, wherein the softening agent of step (1) is one or more of amidopropyl dimethylamine oleate, methyl stearate chloride and myristyl propionate.

3. The method for preparing a low-temperature plasticized orthopedic glove according to claim 1, wherein the rheological viscosity reducer of step (1) is one of a chloromaleresin, a chloropropane resin, a chlorohydrin resin, and 2, 2, 4-trimethyl-1, 3-pentanediol diisobutyrate.

4. The method for preparing low-temperature plasticized orthopedic gloves according to claim 1, wherein the linear polyester in step (1) is one of polyethylene glycol suberate, polypropylene glycol adipate and polypropylene glycol sebacate, and the molecular weight is 1000-8000.

5. The method of making a low temperature plasticized orthopedic glove according to claim 1, wherein the activated crosslinking agent of step (1) comprises zinc methacrylate, glycerol methacrylate, or a mixture thereof.

6. The method for preparing low-temperature plasticized orthopedic gloves according to claim 1, wherein the temperature of the hot compressed air in step (3) is 60-65 ℃ and the pressure is 0.3-0.4 MPa.

7. The method for preparing low-temperature plasticized orthopedic gloves according to claim 1, wherein the vinyl chloride-vinyl acetate-maleic acid copolymer is used as the vinyl chloride-vinyl acetate-maleic acid resin in step (1), and the content of maleic acid is 1-2% of the copolymer.

8. A use method of the low-temperature plasticized orthopedic gloves as claimed in claims 1-7, wherein the use method comprises the steps of cutting and forming the low-temperature plasticized gloves with the paper re-engraved size corresponding to the shape and size of the hands of the patient, placing the cut low-temperature plasticized gloves in hot water of 60-65 ℃ or heating the cut low-temperature plasticized gloves by a hot blower to be softened, transferring the gloves to the hands of the patient, and rapidly plasticizing, cooling and hardening the gloves.