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A kind of high shading spray-free PP material and preparation method thereof

A spray-free, high shading technology, applied in the field of spray-free materials, can solve the problem of inability to know the shading effect, achieve good dispersion and material shading, improve shading, and relieve flow marks.

Active Publication Date: 2021-03-12
上海日之升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN108047627A discloses "a non-spraying polypropylene composite material with scratch resistance and metallic silver texture and its preparation method", which adds polysiloxane and amide compounds to improve the scratch resistance of PP, through Flat glass fiber is loaded with aluminum silver powder to improve the isotropic arrangement of aluminum silver powder to improve the appearance of flow marks and weld lines, but its shading effect is unknown
In the prior art, there is no report about a kind of shading and spray-free PP material of the present invention and its preparation method.

Method used

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  • A kind of high shading spray-free PP material and preparation method thereof
  • A kind of high shading spray-free PP material and preparation method thereof
  • A kind of high shading spray-free PP material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Preparation of high shading free spray PP material (1)

[0030] The high shielded sprayable PP material composition involved in this embodiment has the components and their usage thereof, in Table 2. Among them: The PP is a homogeneous PP having a melt index of 15 g / 10min (230 ° C * 2.16kg), the light shielding filler is silica and golden red-shaped titanium white powder in accordance with 3: 1 compound, the number of silicon is 3000 Entry; from sprayless pigment mother particles, the substrate resin is a homogeneous PP, the melt refers to 25 g / 10 min (230 ° C * 2.16 kg); the sprayed pigment powder is selected from the aluminum silver powder, which is 10 μm having a particle size of 10 μm; dispersant I is silicone Masterblic, stearate is compounded by weight ratio of 1: 2, the agitation particle diameter D50 of silicone mother particles is 500-600 nm; the wetting agent is a silane coupling agent KH550; dispersant II is stearate amide The antioxidant is a wei...

Embodiment 2

[0033] Example 2 Preparation of high shading free spray PP material (2)

[0034] The high shielded sprayable PP material composition involved in this embodiment has the components and their usage thereof, in Table 2. Among them: The PP is a homogeneous PP having a melt index of 15 g / 10min (230 ° C * 2.16kg), the light shielding filler is silica and golden red-shaped titanium white powder in accordance with 3: 1 compound, the number of silicon is 3000 Entry; from sprayless pigment mother particles, the substrate resin is a homogeneous PP, the melt refers to 25 g / 10 min (230 ° C * 2.16 kg); the sprayed pigment powder is selected from the aluminum silver powder, which is 10 μm having a particle size of 10 μm; dispersant I is silicone Masterblic, stearate is compounded by weight ratio of 1: 2, the agitation particle diameter D50 of silicone mother particles is 500-600 nm; the wetting agent is a silane coupling agent KH550; dispersant II is stearate amide The antioxidant is a wei...

Embodiment 3

[0037] Example 3 Preparation of high shading free spray PP material (3)

[0038] The high shielded sprayable PP material composition involved in this embodiment has the components and their usage thereof, in Table 2. Among them: The PP is a homogeneous PP having a melt index of 15 g / 10min (230 ° C * 2.16kg), the light shielding filler is silica and golden red-shaped titanium white powder in accordance with 3: 1 compound, the number of silicon is 3000 Entry; from sprayless pigment mother particles, the substrate resin is a homogeneous PP, the melt refers to 25 g / 10 min (230 ° C * 2.16 kg); the sprayed pigment powder is selected from the aluminum silver powder, which is 10 μm having a particle size of 10 μm; dispersant I is silicone Masterblic, stearate is compounded by weight ratio of 1: 2, the agitation particle diameter D50 of silicone mother particles is 500-600 nm; the wetting agent is a silane coupling agent KH550; dispersant II is stearate amide The antioxidant is a wei...

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Abstract

The invention discloses a high-opacity spraying-free polypropylene (PP) material and a preparation method thereof. The high-opacity spraying-free PP material consists of the following components in parts by weight: 100 parts of PP, 12-20 parts of opacity filler, 5-15 parts of spraying-free pigment master batches and 0.5-3 parts of a dispersing agent, 0.5-1 part of a sizing agent and 0.2-0.5 part of an antioxidant. The PP, the opacity filler, the spraying-free pigment master batches, the dispersing agent and the sizing agent are added into a high mixing machine; mixing is carried out for 5-8 minutes at a rate of 280-360 r / min, so that a pre-mixed material is formed; the pre-mixed material is placed in a main feeding port of a double-screw extruder; and extruding granulation is carried out.The prepared material provided by the invention has an excellent spraying-free effect, the problem of flow marks of conventional spraying-free metal-effect materials can be effectively relieved through the characteristic of good dispersity and material opacity of spraying-free-effect powder, and the PP material provided by the invention is suitable for occasions with relatively high opacity requirements, and has a wide application in the field of LED illumination.

Description

Technical field [0001] The present invention relates to the technical field of sprayable materials, and in particular, it is a high shielding free spray PP material and a preparation method thereof. Background technique [0002] LED (LightemittingDiode), i.e., a light-emitting diode, is a solid-state semiconductor device, which can be directly converted to light. It has a small size, low power consumption, high brightness, low calorie durable, environmentally friendly, these intrinsic features determine that it is the most ideal source of the traditional light source, has a wide range of purposes, can be used as a display, traffic signal display light source Lighting, industrial lighting. The wide application of the LED lamp has also put forward higher requirements for their accessories. If the high-brightness of the LED light source is higher than the light shielding property of the light-shield hood, the surface level is higher than that of ordinary light source, and with the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L83/04C08K13/02C08K5/20C08K3/34C08K3/22C08J3/22
CPCC08J3/223C08J3/226C08J2323/12C08J2423/12C08K2003/2241C08K2201/011C08L23/12C08L2203/20C08L2205/025C08L2205/03C08L83/04C08K13/02C08K5/20C08K3/34C08K3/22
Inventor 陈光伟张强娄小安徐东东孟成铭
Owner 上海日之升科技有限公司
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