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Production system for anti-aging linear low density polyethylene resin

A linear low-density, polyethylene resin technology, applied in the field of polyethylene resin, can solve problems such as affecting the quality of finished products and inability to meet storage requirements

Inactive Publication Date: 2019-01-18
GUANGDONG MINGHUA MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the indicators that determines the above performance is the oxidation induction time. At present, the oxidation induction time (200 ° C) is only 10 minutes or less, so the plastic products injection-molded by linear low-density polyethylene resin cannot meet the storage requirements of at least 15 years. Seriously affect the quality of finished products

Method used

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  • Production system for anti-aging linear low density polyethylene resin
  • Production system for anti-aging linear low density polyethylene resin

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Experimental program
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Embodiment

[0028] refer to figure 1 as well as figure 2 , a kind of anti-aging linear low-density polyethylene resin manufacturing method, comprises the following steps:

[0029] S1: take linear low density polyethylene resin, anti-aging agent and pigment;

[0030] S2: Grind the pigment into fine foam, mix it with the anti-aging agent, and stir evenly; then add it to high-density polyethylene resin and mix evenly;

[0031] S3: the section regulation extruder is equipped with the barrel temperature mixed in S2;

[0032] S4: Extrude a linear low-density polyethylene resin in a strip shape.

[0033] The linear low density polyethylene resin model is LL1001 or LL1002.

[0034] The anti-aging agent is one or more of the antioxidant BHT, the antioxidant TNP distearoylthiodipropionate DSTDP, and barium stearate.

[0035] Wherein antioxidant BHT (100g / kg), antioxidant TNP (140g / kg) / distearyl thiodipropionate DSTDP (90g / kg), barium stearate (110g / kg).

[0036] The first section of the barr...

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Abstract

The invention discloses a production system for anti-aging linear low density polyethylene resin. The production system comprises a material mixer, an extruder, a water-ring pelletizing machine and acentrifugal dehydrator which are sequentially connected by a pipeline; a blower is connected with a stock bin by a first pipeline; the output end of the centrifugal dehydrator is connected with the first pipeline. The production system disclosed by the invention has the beneficial effects that other properties of linear low density polyethylene resin are not changed and anti-aging performance is enhanced, so that oxydation induced time (200 DEG C) of the linear low density polyethylene resin can reach 100 minutes or above, the phenomena of cracking, deformation and the like of injection molding products within 15 years can be avoided and stable performance of the injection molding products can be ensured.

Description

technical field [0001] The invention relates to the technical field of polyethylene resin, in particular to an aging-resistant linear low-density polyethylene resin manufacturing method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Linear low-density polyethylene resin is made of ethylene and a small amount of higher α-olefins (such as butene-1, hexene-1, octene-1, tetramethylpentene-1, etc.) under the action of a catalyst, through high-pressure or low-pressure A copolymer formed by polymerization. It penetrates into almost all traditional polyethylene markets, including film, molding, pipe and wire and cable, and can be used in injection molding products, food packaging materials, medical appliances, pharmaceuticals, blow molding hollow molding products, fibers, etc. .It can be processed into films, wire and cable sheaths, pipes, various hollo...

Claims

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Application Information

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IPC IPC(8): B29C48/92B29B9/06C08L23/08C08K5/098C08K5/372C08K5/13
CPCB29B9/06B29C2945/76531C08K5/098C08K5/13C08K5/372C08L2201/08C08L23/0815
Inventor 施兵邓伟健陈娟位晓成刘文婧
Owner GUANGDONG MINGHUA MACHINERY
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