A composition comprising phosphate and its use

A composition and phosphate technology, applied in the field of polymer additives, can solve the problems of not finding plastic additives, etc., and achieve the effect of reducing warpage and good warpage prevention effect

Active Publication Date: 2021-01-15
GCH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is still no plastic additive that can prevent warping very well. The present invention has discovered additives that can prevent warping. These additives have shown excellent effects in preventing warping

Method used

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  • A composition comprising phosphate and its use
  • A composition comprising phosphate and its use
  • A composition comprising phosphate and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation of embodiment 1 anti-warping composition

[0025] The raw materials are mixed according to the components and weight percentage of the anti-warping composition, and then fully stirred evenly to obtain the anti-warping compositions A1 to A8.

[0026] The composition of table 1 anti-warping composition

[0027]

[0028]

Embodiment 2

[0029] Example 2 Polymer with low warpage

[0030] The preparation method of the polymer is:

[0031] Five single components of 2,2'-methylene-bis(4,6-di-tert-butylphenyl)sodium phosphate, bis[2,2'-methylene-bis(4,6-di-tert-butyl phenyl)]aluminum phosphate, hydroxyaluminum p-tert-butylbenzoate, sodium benzoate and hydrated magnesium silicate, blank polypropylene and the above-mentioned anti-warping compositions A1-A8 are mixed with polypropylene respectively, one-component and anti-warping compositions The warping composition was added in an amount of 0.1% by weight of the polypropylene, and the blank polypropylene had no additions. Then melt granulation is carried out with twin-screw extruder respectively to obtain polypropylene pellets respectively.

[0032] The measurement method of warpage is:

[0033] 600g of polypropylene pellets containing a single component, polypropylene pellets without any ingredients, and polypropylene pellets containing the above-mentioned A1-A8...

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Abstract

The invention relates to an anti-warping composition containing phosphate and application thereof. The composition comprises phosphate and a second ingredient, wherein the phosphate is sodium 2,2'-methylene-bis(4,6-di-tertbutylphenyl)phosphate or aluminum bis[2,2'-methylene-bis(4,6-di-tertbutylphenyl)]phosphate; and the second ingredient is selected from one or more of aluminum p-tert-butylbenzoate, sodium benzoate and hydrated magnesium silicate; the weight ratio of the phosphate to the second ingredient is 1:(0.1-10). According to the anti-warping composition, the warping degree of a productprepared from the polymer is less than or equal to 3 percent.

Description

technical field [0001] The invention belongs to the field of polymer additives, in particular to an anti-warp composition containing phosphate and its application, in particular to a polymer containing an anti-warp composition, and the polymer has a relatively low degree of warp . Background technique [0002] Warpage means that the shape of the injection molded product deviates from the shape of the mold cavity, which is one of the common defects of plastic products. With the development of the plastics industry, people have higher and higher requirements on the appearance and performance of plastic products. As one of the important indicators for evaluating product quality, the degree of warpage and deformation has attracted more and more attention and attention from mold designers. Mold designers hope to predict the cause of warpage of plastic parts in the design stage, so as to optimize the design, thereby improving the efficiency and quality of injection molding produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/527C08K5/098C08K3/34C08K13/02C08L23/12C08L23/06
Inventor 赵文林何洁冰莫志华
Owner GCH TECH
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