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Modified reinforcing and toughening thin-wall suction pipe material and preparation method thereof

A technology of strengthening and toughening, thin-walled, applied in the field of modified reinforced and toughened thin-walled straw pipes and their preparation, which can solve the problems of inability to pierce the packaging, easy brittle cracking of straw materials, cracking of straws, etc. Cracking ability, excellent toughening function, the effect of enhancing rigidity

Active Publication Date: 2013-05-15
NANJING PRIDE PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Straws are very common in daily use. Usually, it is necessary to use a straw to poke open the beverage package when using it. Because the wall of the straw is thin and the rigidity is not enough, it is often impossible to pierce the package. Usually, by thickening the straw The method of wall thickness is used to improve the rigidity of the straw, but it will cause the weight of the straw to be too large and waste raw materials
In addition, because the material of the straw is easy to be brittle at low temperature, it often causes the straw to crack when used in a low temperature climate, especially in a colder place, which affects the use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The first step: mixing materials, 100 kg of polypropylene and 10 kg of elastomers are put into the mixer and mixed, and the speed of the mixer is controlled at 30 rpm and the time is 3 minutes to form a mixture, and the obtained mixture has been mixed Uniform;

[0025] The second step: drying, the mixed material is transported to the dryer through the conveyor, the drying temperature is controlled at 55°C, and the drying time is 20 minutes to form the material to be processed.

[0026] The third step: Extrusion: Melt and extrude the material to be processed through the screw extrusion equipment, set the heating temperature, 170°C in zone 1, 170°C in zone 2, and mold temperature 175°C.

[0027] Step 4: Filling: Add hollow glass microspheres (total amount is 8 kg) at the front end of the screw while extruding, and set the feeding screw speed to 15 rpm. After cooling, a modified reinforced and toughened thin-walled pipe is obtained.

[0028] In the present embodiment, th...

Embodiment 2

[0031] The first step: mixing materials, 100 kg of polypropylene and 15 kg of elastomers are put into the mixer and mixed, and the speed of the mixer is controlled at 28 rpm and the time is 5 minutes to form a mixture, and the obtained mixture has been mixed Uniform;

[0032] The second step: drying, the mixed material is transported to the dryer through the conveyor, the drying temperature is controlled at 50°C, and the drying time is 30 minutes to form the material to be processed.

[0033] The third step: Extrusion: Melt and extrude the material to be processed through the screw extrusion equipment, set the heating temperature, 150°C in zone 1, 155°C in zone 2, and mold temperature 155°C.

[0034] The fourth step: filler: add hollow glass microspheres (total amount is 15 kg) at the front end of the screw while extruding, and set the feeding screw speed to 12 rpm. After cooling, a modified reinforced and toughened thin-walled pipe is obtained.

[0035] In the present embod...

Embodiment 3

[0038] The first step: mixing materials, 100 kg of polypropylene and 25 kg of elastomers are put into the mixer and mixed, and the speed of the mixer is controlled at 35 rpm and the time is 4 minutes to form a mixture, and the obtained mixture has been mixed Uniform;

[0039] The second step: drying, the mixed material is transported to the dryer through the conveyor, the drying temperature is controlled at 65°C, and the drying time is 40 minutes to form the material to be processed.

[0040] Step 3: Extrusion: Melt and extrude the material to be processed through screw extrusion equipment, set the heating temperature, 175°C in zone 1, 180°C in zone 2, and mold temperature 185°C.

[0041] Step 4: Filler: Add hollow glass microspheres (total amount: 10 kg) to the front end of the screw while extruding, and set the feeding screw speed to 20 rpm. After cooling, a modified reinforced and toughened thin-walled pipe is obtained.

[0042] In the present embodiment, the elastomer ad...

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Abstract

The invention relates to a modified reinforcing and toughening thin-wall suction pipe material which is composed of the following raw materials in parts by weight: 100 parts of polypropylene, 8-15 parts of hollow glass microspheres and 10-25 parts of elastomer. A preparation method comprises the following steps of: (I) mixing: uniformly mixing the polypropylene and the elastomer in a mixer to form a mixture; (II) extrusion: performing melt extrusion of the mixture through screw extrusion equipment, wherein the temperature in an area 1 of the extrusion equipment is 150-175 DEG C, the temperature in an area 2 is 155-180 DEG C, and the die temperature is 155-185 DEG C; and (III) filling: adding the hollow glass microspheres while extruding at the front end of a screw, wherein the rotation speed of the charging screw is 12-20rpm; and cooling to obtain the modified reinforcing and toughening thin-wall suction pipe material. Under the condition of the same wall thickness, the suction pipe provided by the invention has the advantage that the pipe wall has better rigidity, excellent tensile strength and elongation at break and good cracking resistance.

Description

[0001] technical field [0002] The invention relates to pipes used in the manufacture of drinking straws and dairy product straws, in particular to the technical field of a modified reinforced and toughened thin-walled straw pipe and a preparation method thereof. [0003] Background technique [0004] Straws are very common in daily use. Usually, it is necessary to use a straw to poke open the beverage package when using it. Due to the thin wall of the straw and insufficient rigidity, it is often impossible to pierce the package. Usually, by thickening the straw The method of wall thickness is used to improve the rigidity of the straw, but it will cause the weight of the straw to be too large and waste raw materials. In addition, because the material of the straw is easily brittle at low temperature, it often causes the straw to crack when used in a low temperature climate, especially in a relatively cold place, which affects the use. [0005] Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/00C08L23/08C08K7/28B29C47/92A47G21/18B29C48/92
CPCB29C48/911B29C48/09B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 李进吴立丰王仕杰贺力张鹏
Owner NANJING PRIDE PLASTIC TECH
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