HDPE modified material for improving pearly luster color masterbatch forming line and application of material

A technology of pearlescent color masterbatch and modified material, applied in the field of material application, can solve problems such as increasing production cost, and achieve the effect of improving production efficiency, good effect and good compatibility

Inactive Publication Date: 2017-02-01
GUANGZHOU BEAUTY STAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By modifying HDPE, the present invention can not only solve the problem of pearlescent lines during blow molding of HDPE, but also does not affect production efficiency and does not increase the production cost of products.

Method used

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  • HDPE modified material for improving pearly luster color masterbatch forming line and application of material
  • HDPE modified material for improving pearly luster color masterbatch forming line and application of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Outer layer: Weigh 90 parts of HDPE5502, 10 parts of LDPE951000, and 4 parts of pearlescent masterbatch, then put them into a mixer and stir for 5 minutes;

[0057] Inner layer: Weigh 100 parts of HDPE5502 and 4 parts of common color masterbatch respectively, then put them into the mixer and stir for 5 minutes.

[0058] (2) Add the mixed inner layer and outer layer materials into the corresponding hopper of the blow molding machine.

[0059] (3) Process parameter setting:

[0060] Outer layer screw temperature: 170~175℃;

[0061] Inner layer screw temperature: 165~170℃;

[0062] Die head temperature: 170~180℃;

[0063] Inner layer screw speed: 22%

[0064] Outer screw speed: 12%

[0065] Finally, a product with a qualified appearance is formed.

Embodiment 2

[0067] (1) Outer layer: Weigh 75 parts of HDPE5502, 25 parts of LDPE951000, and 4 parts of pearlescent masterbatch, then put them into a mixer and stir for 5 minutes;

[0068]Inner layer: Weigh 100 parts of HDPE5502 and 4 parts of common color masterbatch respectively, then put them into the mixer and stir for 5 minutes.

[0069] (2) Add the mixed inner layer and outer layer materials into the corresponding hopper of the blow molding machine.

[0070] (3) Process parameter setting:

[0071] Outer layer screw temperature: 170~175℃;

[0072] Inner layer screw temperature: 165~170℃;

[0073] Die head temperature: 170~175℃;

[0074] Inner layer screw speed: 20%

[0075] Outer screw speed: 10%

[0076] Finally, a product with a qualified appearance is formed.

[0077] figure 1 It is the improvement of flow marks by the HDPE modified material of this example. See the circled part. Before improvement, there are flow marks on the shoulder of the product, resulting in uneven sur...

Embodiment 3

[0079] (1) Outer layer: Weigh 50 parts of HDPE5502, 50 parts of LLDPE7042, and 4 parts of pearlescent masterbatch, then put them into a mixer and stir for 5 minutes;

[0080] Inner layer: Weigh 100 parts of HDPE5502 and 4 parts of common color masterbatch respectively, then put them into the mixer and stir for 5 minutes.

[0081] (2) Add the mixed inner layer and outer layer materials into the corresponding hopper of the blow molding machine.

[0082] (3) Process parameter setting:

[0083] Outer layer screw temperature: 165~170℃;

[0084] Inner layer screw temperature: 165~170℃;

[0085] Die head temperature: 170~175℃;

[0086] Inner layer screw speed: 23%

[0087] Outer screw speed: 8%

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Abstract

The invention discloses an HDPE modified material for improving the pearly luster color masterbatch forming line and application of the material, and belongs to the field of material application. The HDPE modified material is prepared from, by mass, 50-90% of extrusion blow molding grade HDPE and 10-50% of LDPE or LLDPE. The HDPE modified material has the advantages that the effect of improving the pearly luster line and the flow line in forming is good, production efficiency is improved, only a pouring cup needs to be detached to be polished during production, the time for cleaning mold head parts is greatly shortened, and production efficiency is improved; the color and luster of the material are improved, and the material is helpful for improving the pearl luster line and the flow line; the production cost of the product is not increased, and the product performance is not influenced; component compatibility is good, no special requirements exist during machining, so the production cost of the product can not be increased; the mechanical performance of the LDPE is weak, but co-mixture only needs to be used on the outer layer, so the ratio of the co-mixture in the product is small, and the physical performance of the product is not remarkably influenced.

Description

technical field [0001] The invention belongs to the field of material application, and in particular relates to an HDPE modified material for improving molding lines of pearlescent color masterbatch and application thereof. Background technique [0002] Compared with ordinary color masterbatches, pearlescent color masterbatch has unique gloss, which can improve the brightness of product color, and can also change the color rendering effect and improve product grade. [0003] The main component of the widely used pearlescent masterbatch is natural mica flakes as the core, and through a special chemical process, one or more layers of titanium or other metal oxides are coated on its surface, so the cost of pearlescent masterbatch is relatively low. The cost of general color masterbatch is higher. [0004] In the hollow extrusion blow molding industry, pearlescent masterbatches are generally used in the outer layer of multi-layer co-extrusion to reduce costs. However, since th...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08B29C49/78
CPCC08L23/06B29C49/78B29C49/786C08L23/0815C08L2205/025C08L2207/062C08L2207/066
Inventor 郭文生邵天志赵宏泽
Owner GUANGZHOU BEAUTY STAR CO LTD
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