阅读说明：本技术 一种塑料添加剂及其制备工艺 (Plastic additive and preparation process thereof ) 是由 徐留琦 于 2021-08-04 设计创作，主要内容包括：本发明涉及塑料添加剂技术领域,更具体的说是一种塑料添加剂及其制备工艺；可以有效的在高温情况下抵抗塑料被氧化,同时延缓塑料褪色；该工艺包括以下步骤：步骤一：抗氧剂TNP降温至-5℃凝固起来,随后研磨成粉末,得到抗氧剂TNP粉末；步骤二：抗氧剂TNP粉末与抗氧剂MB粉末溶解在丙酮溶液中,并搅拌；步骤三：搅拌均匀之后得到混合溶液；步骤四：对混合溶液加热,使混合溶液中多余的丙酮溶液挥发,得到凝胶状添加剂；还使用一种塑料添加剂制备装置,所述装置包括容积桶、压板、制冷线圈和堵板,压板能够沿着容积桶的轴线滑动,制冷线圈设置在容积桶的外壁上,堵板能够将容积桶盖住。(The invention relates to the technical field of plastic additives, in particular to a plastic additive and a preparation process thereof; the plastic can be effectively prevented from being oxidized at high temperature, and the fading of the plastic is delayed; the process comprises the following steps: the method comprises the following steps: cooling the antioxidant TNP to-5 ℃ for solidification, and then grinding into powder to obtain antioxidant TNP powder; step two: dissolving the antioxidant TNP powder and the antioxidant MB powder in an acetone solution, and stirring; step three: uniformly stirring to obtain a mixed solution; step four: heating the mixed solution to volatilize the redundant acetone solution in the mixed solution to obtain a gel additive; still use a plastics additive preparation facilities, the device includes volume bucket, clamp plate, refrigeration coil and closure plate, and the clamp plate can slide along the axis of volume bucket, and refrigeration coil sets up on the outer wall of volume bucket, and the closure plate can cover the volume bucket.)

1. A preparation process of a plastic additive is characterized by comprising the following steps: the process comprises the following steps:

the method comprises the following steps: cooling the antioxidant TNP to-5 ℃ for solidification, and then grinding into powder to obtain antioxidant TNP powder;

step two: dissolving the antioxidant TNP powder and the antioxidant MB powder in an acetone solution, and stirring;

step three: uniformly stirring to obtain a mixed solution;

step four: heating the mixed solution to volatilize the excessive acetone solution in the mixed solution to obtain the gel additive.

2. A process for the preparation of a plastic additive according to claim 1, characterized in that: and in the second step, the volume ratio of the antioxidant TNP powder to the antioxidant MB powder is 3 to 1.

3. A process for the preparation of a plastic additive according to claim 1, characterized in that: plastics additive preparation technology still uses a plastics additive preparation facilities, the device includes volume bucket (001), clamp plate (003), refrigeration coil (004) and closure plate (009), and clamp plate (003) can slide along the axis of volume bucket (001), and refrigeration coil (004) set up on the outer wall of volume bucket (001), and closure plate (009) can cover volume bucket (001).

4. A process for the preparation of a plastic additive according to any one of claims 2 to 3, characterized in that: the device still includes lead screw (005), slide bar (006) and thread bush (007), and thread bush (007) rotate on volume bucket (001), lead screw (005) and thread bush (007) threaded connection, and two slide bars (006) are all fixed on lead screw (005) and clamp plate (003), and clamp plate (003) are connected on lead screw (005).

5. A process for the preparation of a plastic additive according to claim 4, characterized in that: the device also comprises a fluted disc (014) and a grinding plate (015), wherein the grinding plate (015) is fixed on the fluted disc (014), the grinding plate (015) is positioned below the volume barrel (001), and the grinding plate (015) can rotate along the axis of the volume barrel (001).

6. A process for the preparation of a plastic additive according to claim 5, characterized in that: the upper end face of the grinding plate (015) is made of a frosted material.

7. A process for the preparation of a plastic additive according to claim 6, characterized in that: the device still includes annular sprocket (008), follow-up sprocket (010) and gear (011), and annular sprocket (008) is fixed on thread bush (007), annular sprocket (008) and follow-up sprocket (010) chain drive, follow-up sprocket (010) and gear (011) fixed connection, gear (011) and fluted disc (014) meshing transmission.

8. A process for the preparation of a plastic additive according to claim 7, characterized in that: the device also comprises a rotating frame (012), a rotary seat (013) and a material slope (016), wherein the gear (011) rotates on the rotating frame (012), the rotary seat (013) is arranged on the rotating frame (012), the fluted disc (014) rotates on the rotary seat (013), and the rotating frame (012) rotates on the material slope (016).

9. A process for the preparation of a plastic additive according to claim 8, wherein: the device also comprises a mixing barrel (017), a stirring shaft (018) and a base (019), wherein the mixing barrel (017) is arranged on the base (019), the stirring shaft (018) rotates in the mixing barrel (017), and the material slope (016) is fixed on the mixing barrel (017).

10. The additive produced by the plastic additive preparation process according to claim 9, wherein the plastic additive is prepared by the plastic additive preparation process, and the plastic additive is characterized in that: the additive is composed of the following raw materials in parts by volume: 3 parts of antioxidant TNP powder; 1 part of antioxidant MB powder; 4 parts of acetone.

Technical Field

The invention relates to the technical field of plastic additives, in particular to a plastic additive and a preparation process thereof.

Background

Plastic materials become the most important materials in people's everyday life, such as plastic bags, plastic cups, shells of most household appliances, shoe materials, tableware, raincoats, agricultural films, packaging films, containers, stationery, leisure articles, household articles and the like are all plastic products, so that the plastic materials are really inseparable from people's everyday life, but the existing plastic products are weathered and faded after being irradiated by sunlight and contacted by oxygen, so that the plastic products are easy to break, and the colors and patterns on the plastic products fade to influence the appearance; in order to avoid the problems, the invention prepares the plastic additive capable of delaying weathering and fading, which can effectively resist the oxidation of plastics at high temperature and delay the fading of plastics.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the plastic additive and the preparation process thereof, which can effectively resist the oxidation of plastics at high temperature and delay the color fading of the plastics.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a process for preparing a plastic additive, the process comprising the steps of:

the method comprises the following steps: cooling the antioxidant TNP to-5 ℃ for solidification, and then grinding into powder to obtain antioxidant TNP powder;

step two: dissolving the antioxidant TNP powder and the antioxidant MB powder in an acetone solution, and stirring;

step three: uniformly stirring to obtain a mixed solution;

step four: heating the mixed solution to volatilize the excessive acetone solution in the mixed solution to obtain the gel additive.

And in the second step, the volume ratio of the antioxidant TNP powder to the antioxidant MB powder is 3 to 1.

The plastic additive preparation process further uses a plastic additive preparation device which comprises a volume barrel, a pressing plate, a refrigerating coil and a blocking plate, wherein the pressing plate can slide along the axis of the volume barrel, the refrigerating coil is arranged on the outer wall of the volume barrel, and the blocking plate can cover the volume barrel.

The additive prepared by the plastic additive preparation process is characterized by comprising the following steps: the additive is composed of the following raw materials in parts by volume: 3 parts of antioxidant TNP powder; 1 part of antioxidant MB powder; 4 parts of acetone.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a flow chart of the process for preparing the plastic additive of the present invention;

FIG. 2 is a schematic view of the construction of the containment drum and platen of the present invention;

FIG. 3 is a schematic structural view of a screw rod and a threaded sleeve in the present invention;

FIG. 4 is a schematic structural view of a closure plate according to the present invention;

FIG. 5 is a schematic structural view of a toothed disc and a grinding plate according to the present invention;

FIG. 6 is a schematic structural view of the endless sprocket and the follower sprocket of the present invention;

FIG. 7 is a schematic cross-sectional view of the engagement of the gears and the toothed disc of the present invention;

FIG. 8 is a schematic structural view of a rotating frame and a material slope in the present invention;

FIG. 9 is a schematic view of the mixing barrel and the stirring shaft according to the present invention;

FIG. 10 is a schematic view of the structure of a plastic additive manufacturing apparatus according to the present invention.

In the figure: a containment drum 001; pressing plates 003; a refrigeration coil 004; a lead screw 005; a slide bar 006; a threaded sleeve 007; an annular sprocket 008; the blocking plate 009; a follower sprocket 010; a gear 011; a turret 012; a transposition 013; a fluted disc 014; grinding the plate 015; material slope 016; a mixing barrel 017; a stirring shaft 018; and a base 019.

Detailed Description

The specific process steps are as follows: the method comprises the following steps: cooling the antioxidant TNP to-5 ℃ for solidification, and then grinding into powder to obtain antioxidant TNP powder; step two: dissolving the antioxidant TNP powder and the antioxidant MB powder in an acetone solution, and stirring; step three: uniformly stirring to obtain a mixed solution; step four: and heating the mixed solution to volatilize the excessive acetone solution in the mixed solution to obtain the gel-like additive, wherein the volume ratio of the antioxidant TNP powder to the antioxidant MB powder in the step two is 3 to 1, and according to experiments, the performance of the obtained additive is best after the antioxidant TNP powder and the antioxidant MB powder are mixed in the ratio.

Referring to fig. 2 to 4, one exemplary working procedure according to which the solidification of the antioxidant TNP into a solid state can be obtained is as follows:

the preparation process of the plastic additive further uses a plastic additive preparation device, the device comprises a volume barrel 001, a pressing plate 003, a refrigerating coil 004 and a blocking plate 009, the pressing plate 003 can slide along the axis of the volume barrel 001, the refrigerating coil 004 is arranged on the outer wall of the volume barrel 001, the blocking plate 009 can cover the volume barrel 001, the pressing plate 003 is provided with a one-way valve, and the concrete operations are as follows: firstly, the pressing plate 003 is slid to the uppermost position inside the volume barrel 001, then the bottom end of the volume barrel 001 is covered by the blocking plate 009, at the moment, the light yellow viscous antioxidant TNP is added into the volume barrel 001 through the one-way valve, then the temperature is transferred to the refrigerating coil 004 by using refrigerating equipment, so that the refrigerating coil 004 reduces the temperature of the volume barrel 001, after the temperature is reduced to below-5 ℃, the light yellow viscous antioxidant TNP is solidified into a solid state, and at the moment, the solid antioxidant TNP can be prepared into powder to be mixed with the antioxidant MB.

Referring to fig. 3 and 4, an exemplary operation process for removing the solid antioxidant TNP is shown as follows:

after the anti-oxidant TNP is prepared into a solid state, the anti-oxidant TNP needs to be taken out, but the anti-oxidant TNP cannot be directly contacted and operated due to low temperature, the surface of the solid anti-oxidant TNP solidified into a cylindrical shape is smooth and is not easy to operate, in order to facilitate the taking out of the solid anti-oxidant TNP from the volume barrel 001, the device in the invention further comprises a screw rod 005, a slide rod 006 and a threaded sleeve 007, the threaded sleeve 007 rotates on the volume barrel 001, the screw rod 005 is in threaded connection with the threaded sleeve 007, both the slide rods 006 are fixed on the screw rod 005 and a pressure plate 003, the pressure plate 003 is connected on the screw rod 005, so that the threaded sleeve 007 can be driven to rotate on the volume barrel 001 through an external power source, when the threaded sleeve 007 rotates, the screw rod 005 is driven to move along the axis of the volume barrel 001 under the limitation of the two slide rods 006 through the screw rod 005, the pressure plate 003 can drive the pressure plate 003 to move downwards in the volume barrel 001, so that the solid anti-oxidant TNP in the volume barrel 001 is extruded out from the lower part of the volume barrel 001 through the pressure plate 003, thereby replacing the manual operation and enabling the solid antioxidant TNP solidified into a cylindrical shape to be taken out.

Referring to FIGS. 5 and 6, an exemplary process for preparing the TNP powder as an antioxidant is shown as follows:

since the apparatus further includes toothed disc 014 and grinding plate 015, grinding plate 015 is fixed on toothed disc 014, and grinding plate 015 is located below volume barrel 001, and grinding plate 015 can rotate along the axis of volume barrel 001, the specific operation in preparing solid antioxidant TNP into powder is: when the pressing plate 003 extrudes the solid antioxidant TNP in the volume barrel 001 from the lower part of the volume barrel 001, the grinding plate 015 rotates, the grinding plate 015 with the upper end surface made of a frosted material is used for continuously grinding the solid antioxidant TNP from the lower part in a rotating manner, and the solid antioxidant TNP is ground into powder.

Referring to fig. 7 and 8, an exemplary working procedure for removing the solid antioxidant TNP and grinding is shown in the figure:

if two power sources are used for respectively driving the threaded sleeve 007 to rotate and the grinding plate 015 to rotate, a large amount of electricity consumption is caused, so in order to take out the solid antioxidant TNP and grind under the condition of saving power, the grinding machine further comprises an annular chain wheel 008, a follow-up chain wheel 010 and a gear 011, the annular chain wheel 008 is fixed on the threaded sleeve 007, the annular chain wheel 008 is in chain transmission with the follow-up chain wheel 010, the follow-up chain wheel 010 is fixedly connected with the gear 011, and the gear 011 is in meshing transmission with a fluted disc 014, so that the grinding plate 015 or one of the power sources driving the threaded sleeve 007 or driving the grinding plate 015 to rotate can be used as the only power output, no matter the grinding plate 015 or the threaded sleeve 007 rotates, the corresponding positions can be rotated through the mutual connection among the annular chain wheel 008, the follow-up chain wheel 010 and the gear 011, and the solid antioxidant TNP is extruded out of the lower part of the container 001 by the pressing plate 003 while the grinding plate 015 rotates, and the solid antioxidant TNP is extruded out of the lower part of the container 001 by the pressing plate 003 Therefore, the solid antioxidant TNP is extruded and ground into powder, power is saved, and the solid antioxidant TNP can be smoothly ground into powder.

Referring to fig. 8 and 10, an exemplary operation of pouring the powder according to the drawings is:

the device of the invention also comprises a rotating frame 012, a rotary seat 013 and a material slope 016, wherein the gear 011 rotates on the rotating frame 012, the rotary frame 012 is provided with the rotary seat 013, a fluted disc 014 rotates on the rotary seat 013, the rotating frame 012 rotates on the material slope 016, so that when the solid antioxidant TNP is ground into powder, the rotating frame 012 can be rotated to realize the angle inclination on the material slope 016, so that the rotary frame 012 drives the volume barrel 001 to incline relative to the material slope 016, so that the volume barrel 001 and the polishing plate 015 can both incline, after grinding the solid antioxidant TNP into powder at this time, the antioxidant TNP powder is dropped onto the bank 016 by the inclined grinding plate 015, thereby avoided under the vertical state volume bucket 001 below to be polished into powdered antioxidant TNP powder and caused piling up or jam, avoided leading to antioxidant TNP powder to cover the dull polish part of board 015 up end of polishing, avoided leading to grinding ability to descend.

Referring to fig. 9 and 10, one exemplary process by which the additive may be prepared is shown:

the device further comprises a mixing barrel 017, a stirring shaft 018 and a base 019, wherein the mixing barrel 017 is arranged on the base 019, the stirring shaft 018 is rotated in the mixing barrel 017, the material slope 016 is fixed on the mixing barrel 017, a heater is further arranged on the base 019, after the antioxidant TNP powder is prepared, firstly, an acetone solution is added into the mixing barrel 017, then, the antioxidant TNP powder and the antioxidant MB powder are added into the mixing barrel 017 according to a proportion, then, the antioxidant TNP powder, the antioxidant MB powder and the acetone solution are continuously stirred by the stirring shaft 018, the antioxidant TNP powder and the antioxidant MB powder are fully mixed and are uniformly mixed in a state of being dissolved into liquid, and then, the heater is used for heating the mixing barrel 017 to accelerate evaporation of the redundant acetone solution, so that the gelatinous additive is obtained.

The additive prepared by the plastic additive preparation process comprises the following raw materials in parts by volume: 3 parts of antioxidant TNP powder; 1 part of antioxidant MB powder; 4 parts of acetone.

Antioxidant TNP, light yellow viscous liquid, freezing point lower than-5 deg.c and boiling point higher than 105 deg.c, no smell, no toxicity and acetone solubility. The antioxidant MB is high in high-temperature medium oxidation resistance, and the faint yellow powder is dissolved in acetone and can be used for bright-color plastic products.