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Talcum powder master batch and preparation method thereof

A technology of talcum powder masterbatch and polyolefin resin, which is applied in the field of talc powder masterbatch and its preparation, can solve the problems of high cost, low scratch-resistant efficiency, low odor, etc., and achieve improved rigidity, improved scratch resistance, and reduced The effect of dosage

Inactive Publication Date: 2019-03-22
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of daily use of the car, people accidentally touch these parts, especially if hard objects touch and scratch, it will cause whitening and other phenomena on the interior parts, which will affect the appearance. Developed relevant test standards for scratch resistance
At the same time, as an automotive interior material, it also needs to meet the requirements of low odor. Some anti-scratch agents have irritating odors, which cannot meet the odor requirements of automotive interiors.
[0003] At present, the scratch resistance is mainly improved by adding additives to reduce the surface friction coefficient of the modified PP material. There are two main methods, the first: erucamide, which has the advantage of meeting the scratch resistance requirements and lower price, but The weather resistance test exceeds 350 hours, and the surface has precipitation and stickiness, which cannot meet the standards of the automotive industry
Second: polysiloxane masterbatch, which has good scratch resistance and meets the odor and scratch resistance standards of the automotive industry. A high addition amount can meet the requirements, and a higher addition amount will lead to higher costs and a greater decrease in material rigidity
[0004] Chinese patent CN201610573664 uses siloxane and long-chain alkyl silicone oil to improve scratch resistance, which has a certain effect, but fails to improve the bonding force between PP resin and filler; Alkane masterbatches can be used to improve scratch resistance, which can improve scratch resistance to a certain extent, but for the skin texture with high scratch resistance requirements, the scratch resistance efficiency is low and a higher dosage is required
[0005] Chinese patents CN201510929024 and CN201810125473 use amide to improve scratch resistance, which has a good scratch resistance effect, but cannot meet the weather resistance test requirements

Method used

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  • Talcum powder master batch and preparation method thereof
  • Talcum powder master batch and preparation method thereof
  • Talcum powder master batch and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A kind of talcum powder masterbatch, it comprises following component by raw material weight part:

[0040] 16 parts of polypropylene resin;

[0041] 6 parts of compatibilizer;

[0042] 8 parts of silicone masterbatch;

[0043] 70 parts of talcum powder;

[0044] 0.4 part of antioxidant.

[0045] The compatibilizer is composed of polyolefin resin and dialkyl-terminated amino silicone oil in a weight ratio of 5:1.

[0046] Preparation method: Step 1: Add polypropylene resin, compatibilizer, and siloxane masterbatch to the internal mixer according to the weight of the raw materials and stir for 1-2 minutes, then add talcum powder and antioxidant for melting and banburying at 180°C , so that the talc powder and the carrier are fully mixed to obtain a premix; the above premix is ​​fed into a twin-screw granulator through forced feeding, melted and extruded at an extrusion temperature of 150-200°C, and air-cooled and pelletized . Step 2: Put the pellets prepared in Ste...

Embodiment 2

[0049] A kind of talcum powder masterbatch, it comprises following component by raw material weight part:

[0050] 30 parts of polypropylene resin;

[0051] 3 parts of compatibilizer

[0052] 5 parts of silicone masterbatch;

[0053] 60 parts of talcum powder;

[0054] 0.3 parts of antioxidant.

[0055] The compatibilizer is composed of polyolefin resin and dialkyl-terminated amino silicone oil in a weight ratio of 3:1.

[0056]Preparation method: Step 1: Add polypropylene resin, compatibilizer, and siloxane masterbatch to the internal mixer according to the weight of the raw materials and stir for 1-2 minutes, then add talcum powder and antioxidant for melting and banburying at 180°C , so that the talc powder and the carrier are fully mixed evenly to obtain a premix; the above premix is ​​fed into a twin-screw granulator through forced feeding, melted and extruded at an extrusion temperature of 150-200 ° C, air-cooled and pelletized . Step 2: Put the pellets in Step 1 i...

Embodiment 3

[0059] A kind of talcum powder masterbatch, it comprises following component by raw material weight part:

[0060] 11 parts of polypropylene resin;

[0061] 10 parts of compatibilizer;

[0062] 10 parts of silicone masterbatch;

[0063] 70 parts of talcum powder;

[0064] 0.6 part of antioxidant.

[0065] The compatibilizer is composed of polyolefin resin and dialkyl-terminated amino silicone oil in a weight ratio of 3.5:1.

[0066] Preparation method: Step 1: Add polypropylene resin, compatibilizer, and siloxane masterbatch to the internal mixer according to the weight of the raw materials and stir for 1-2 minutes, then add talcum powder and antioxidant for melting and banburying at 180°C , so that the talc powder and the carrier are fully mixed evenly to obtain a premix; the above premix is ​​fed into a twin-screw granulator through forced feeding, melted and extruded at an extrusion temperature of 150-200 ° C, air-cooled and pelletized . Step 2: Put the pellets in Ste...

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Abstract

The invention relates to a talcum powder master batch and a preparation method thereof. The talcum powder master batch is prepared from the following raw materials in parts by weight: 11-30 parts of polypropylene, 3-10 parts of a compatilizer, 5-10 parts of a siloxane master batch, 60-70 parts of talcum powder, and 0.3-0.6 parts of an anti-oxidant, wherein the compatilizer is formed by polyolefinresin and dialkyl-terminated amino silicon oil; and the polyolefin resin is a copolymer of propylene and ethylene. The polyolefin resin is specifically selected to be combined with the dialkyl-terminated amino silicon oil, the effect of the compatilizer is achieved, and good infiltrating and coating effects are realized for the talcum powder. Dispersion of the talcum powder in PP resin is improved, scratch resistance is improved, and a dosage of the siloxane master batch can be reduced, so rigidity of a material can be further improved, and cost is reduced under the precondition of the good scratch resistance.

Description

technical field [0001] The invention relates to the field of polymer compositions, in particular to a talcum powder masterbatch and a preparation method thereof. Background technique [0002] Talc powder filled polypropylene materials have been widely used in automotive interior parts such as door panels, instrument panels, sub-dashboards, glove boxes, etc. In the process of daily use of the car, people accidentally touch these parts, especially if hard objects touch and scratch, it will cause whitening and other phenomena on the interior parts, which will affect the appearance. Relevant test standards for scratch resistance have been formulated. At the same time, as an automotive interior material, it also needs to meet the requirements of low odor. Some anti-scratch agents have pungent odors, which cannot meet the odor requirements of automotive interiors. [0003] At present, the scratch resistance is mainly improved by adding additives to reduce the surface friction co...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L83/08C08K3/34C08J3/22
CPCC08J3/226C08J2423/12C08J2423/14C08K3/34
Inventor 王灿耀张旭文易庆锋方安平桑杰
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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