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Packaging pipe material with low rotational torque and preparation method thereof

A packaging tube, torque technology

Active Publication Date: 2020-02-21
ZHEJIANG AXILONE SHUNHUA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome the large internal friction of the PBT melt in the prior art and the poor fluidity of the melt, resulting in poor surface smoothness of the produced material, and even cracks, when processed into tubular packaging materials such as lipstick and eyebrow pencil. , high rotational torque, which is unfavorable for use, provide a low rotational torque packaging tube material and its preparation method, polyether modified silicone oil lubricant and PBT copolymerization to obtain polyether silicone oil and PBT block copolymer , improves the fluidity of PBT melt, and the packaging tube produced by using the block copolymer as the base material has low rotational torque and is easy to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of packaging tube material with low rotational torque, the raw materials include 100 parts of PBT-polyether modified silicone oil copolymer, 8 parts of ethylene-octene copolymer, 0.2 part of antioxidant 1010 and 0.1 part of antioxidant 168 in parts by weight .

[0030] The preparation method of PBT-polyether modified silicone oil copolymer comprises the steps:

[0031] (1) Mix high hydrogen-containing silicone oil (the mass fraction of active hydrogen is 1.56%), octamethylcyclotetrasiloxane and hexamethyldisiloxane with a mass ratio of 15:85:3 to obtain a mixture. Add concentrated sulfuric acid accounting for 3.5% of the total mass of the mixture, add sodium bicarbonate powder accounting for 6.5% of the total mass of the mixture after reacting for 9 hours, stir for 15 minutes and filter to remove solid components to obtain low-hydrogen silicone oil;

[0032] (2) Dissolve the low-hydrogen silicone oil and allyl alcohol polyether with a mass ratio of 4:15 in tolue...

Embodiment 2

[0037] A kind of packing tube material of low rotational torque, raw material comprises 90 parts of PBT-polyether modified silicone oil copolymers, 2 parts of ethylene-octene copolymers, 3 parts of maleic anhydride grafted ethylene-octene copolymers in parts by weight , 0.1 part of antioxidant 1010 and 0.1 part of antioxidant 168.

[0038] The preparation method of PBT-polyether modified silicone oil copolymer comprises the steps:

[0039] (1) Mix high hydrogen-containing silicone oil (the mass fraction of active hydrogen is 1.55%), octamethylcyclotetrasiloxane and hexamethyldisiloxane with a mass ratio of 10:80:1 to obtain a mixture. Add concentrated sulfuric acid accounting for 3% of the total mass of the mixture, add sodium bicarbonate powder accounting for 6% of the total mass of the mixture after reacting for 8 hours, stir for 10 minutes and then filter to remove solid components to obtain low-hydrogen silicone oil;

[0040] (2) Dissolve the low-hydrogen silicone oil and...

Embodiment 3

[0045] A kind of packing tube material of low rotational torque, raw material comprises 110 parts of PBT-polyether modified silicone oil copolymers, 10 parts of styrene-butadiene-styrene copolymers, 0.3 parts of antioxidant 1010 and 0.2 parts by weight in parts by weight. 168 parts antioxidant.

[0046] The preparation method of PBT-polyether modified silicone oil copolymer comprises the steps:

[0047] (1) Mix high hydrogen-containing silicone oil (the mass fraction of active hydrogen is 1.6%), octamethylcyclotetrasiloxane and hexamethyldisiloxane with a mass ratio of 20:90:6 to obtain a mixture. Add concentrated sulfuric acid accounting for 4% of the total mass of the mixture, add sodium bicarbonate powder accounting for 7% of the total mass of the mixture after reacting for 10 hours, stir for 20 minutes and then filter to remove solid components to obtain low-hydrogen silicone oil;

[0048] (2) Dissolve the low-hydrogen silicone oil and allyl alcohol polyether with a mass ...

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Abstract

The invention relates to the technical field of polymer materials, and discloses a packaging pipe material with low rotational torque and a preparation method thereof. The packaging pipe material comprises the following raw materials in parts by weight: 90-110 parts of a polybutylene terephthalate (PBT)-polyether modified silicone oil copolymer, 5-10 parts of a toughening agent and 0.2-0.5 part ofa composite antioxidant. The preparation method comprises the following steps: drying the PBT-polyether modified silicone oil copolymer, uniformly mixing the PBT-polyether modified silicone oil copolymer with the toughening agent and the composite antioxidant according to a raw material ratio to obtain a mixture, adding the mixture into an injection molding machine, and performing injection molding to obtain the packaging pipe material with low rotation torque. According to the invention, the copolymer of polyether modified silicone oil and PBT is used as a base material to prepare the packaging pipe material, so that the problem that the lubricating effect is limited due to poor compatibility of a lubricating agent and PBT resin when the lubricating agent is directly added into the PBT resin is effectively solved, internal friction is greatly reduced, and fluidity of a melt is improved. The prepared packaging pipe material is low in rotation torque and good in smoothness.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a packaging tube material with low rotational torque and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a kind of thermoplastic polyester resin. Due to the advantages of heat resistance, weather resistance, chemical resistance, good electrical characteristics, low water absorption and good gloss, PBT is widely used Packaging materials for lipsticks, lipsticks, eyebrow pencils and other cosmetics. [0003] When using PBT to process packaging materials, due to the cohesive force between polymer molecules, the internal friction of the melt during processing is large, and the fluidity of the melt is poor, resulting in poor surface smoothness of the produced material, and even cracks, which are processed into lipsticks. , eyebrow pencil and other tubular packaging materials, such as the center beam core, the rotation torque i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08L51/06C08L53/02C08K5/134C08K5/526C08G63/695C08G77/46
CPCC08G63/6956C08G77/46C08L67/02C08L2201/08C08L2203/18C08L2205/03C08L23/0815C08K5/1345C08K5/526C08L51/06C08L53/02
Inventor 房永庆倪伯坤顾柏锋
Owner ZHEJIANG AXILONE SHUNHUA ALUMINUM IND