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Filled polybutylene composite material used in fast-forming parts, and preparation method thereof

A technology for forming parts and composite materials, applied in the field of propylene composite materials and their preparation, can solve the problems of increased material shrinkage, easy product deformation, poor material flow stability, etc., and achieves low shrinkage, good dimensional stability and cost. low effect

Inactive Publication Date: 2014-11-19
SUZHOU EXCELLENCE ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of a nucleating agent increases the crystallization temperature and half-crystallization time, making the crystallization of the material more uniform, the shape of the part is better under the same cooling time, and the gap between the part and the inspection tool is improved by more than 50%, but the addition of the nucleating agent Increase the shrinkage of the material and the product is easy to deform
In addition, due to the viscoelasticity of polymer materials, the faster the injection speed, the worse the flow stability of the material, and it is easy to appear a kind of appearance defect tiger skin pattern

Method used

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  • Filled polybutylene composite material used in fast-forming parts, and preparation method thereof
  • Filled polybutylene composite material used in fast-forming parts, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A filled polybutylene composite material for rapid prototyping parts, in parts by weight, comprising,

[0028] Polybutene, 61 parts;

[0029] Toughening agent, 23 parts; Described toughening agent is POE.

[0030] Mineral powder filler, 10 parts; the mineral powder filler is talcum powder, and the Mohs hardness is less than 3.

[0031] Modified nano filler master batch, 5 parts; the modified nano filler is a composite of nano filler particles and polybutene master batch, and the melt flow rate of the polybutene master batch is 80g / 10min. The nano filler has a layered structure, and the nano filler is kaolin.

[0032] Nucleating agent, 0.5 part; The nucleating agent is β crystal form nucleating agent Y-619.

[0033] Heat stabilizer DSTP, 0.1 part;

[0034] Antioxidant 1010, 0.1 parts;

[0035] Antioxidant 168, 0.3 parts.

[0036] A preparation method for a filled polybutylene composite material applied to rapid prototyping parts, comprising the following steps:

...

Embodiment 2

[0042] A filled polybutylene composite material for rapid prototyping parts, in parts by weight, comprising,

[0043] Polybutene, 86 parts;

[0044] Toughening agent, 5 parts; Described toughening agent is EPDM rubber elastomer.

[0045] Mineral powder filler, 5 parts; the mineral powder filler is calcium carbonate with a Mohs hardness less than 3.

[0046] Modified nano filler master batch, 1 part; the modified nano filler is a composite of nano filler particles and polybutene master batch, and the melt flow rate of the polybutene master batch is 80g / 10min. The nano filler has a layered structure, and the nano filler is sepiolite.

[0047] Nucleating agent, 0.5 part; The nucleating agent is β crystal form nucleating agent Y-619.

[0048] Heat stabilizer DSTP, 1.0 parts;

[0049] Antioxidant 1010, 1.0 parts;

[0050] Antioxidant 168, 0.5 parts.

[0051] A preparation method for a filled polybutylene composite material applied to rapid prototyping parts, comprising the fo...

Embodiment 3

[0057] A filled polybutylene composite material for rapid prototyping parts, in parts by weight, comprising,

[0058] Polybutene, 80 parts;

[0059] Toughening agent, 12 parts; Described toughening agent is POE.

[0060] Mineral powder filler, 5 parts; the mineral powder filler is kaolin with a Mohs hardness less than 3.

[0061] Modified nano filler master batch, 1 part; the modified nano filler is a composite of nano filler particles and polybutene master batch, and the melt flow rate of the polybutene master batch is 80g / 10min. The nanofiller has a layered structure, and the nanofiller is a metal oxide V 2 o 5 .

[0062] Nucleating agent, 0.5 part; The nucleating agent is β crystal form nucleating agent Y-619.

[0063] Heat stabilizer DSTP, 0.5 parts;

[0064] Antioxidant 1010, 0.5 parts;

[0065] Antioxidant 168, 0.5 parts.

[0066] A preparation method for a filled polybutylene composite material applied to rapid prototyping parts, comprising the following steps: ...

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Abstract

The invention discloses a filled polybutylene composite material used in fast-forming parts. The material comprises, by weight, 61-86 parts of polybutene, 1-25 parts of a toughening agent, 5-29 parts of a mineral powder filling material, 1-5 parts of modified nano-grade filling material masterbatch, 0.3-0.5 parts of a nucleating agent, 0.1-1.0 parts of a heat stabilizer DSTP, 0.1-1.0 parts of an antioxidant 1010, and 0.1-0.5 parts of an antioxidant 168. The invention also discloses a preparation method of the filled polybutylene composite material used in fast-forming parts. The method comprises the following steps: (1) the modified nano-grade filling material masterbatch is prepared; (2) the raw materials are weighed; (3) mixing is carried out, wherein the raw materials weighed in the step (2) are subjected to dry mixing in a high-speed mixer for 3-5min; and (4) extrusion and granulation are carried out, wherein the mixed raw material is subjected to melt extrusion and granulation in a double-screw machine.

Description

technical field [0001] The invention relates to a polymer material, in particular to a propylene composite material and a preparation method thereof. Background technique [0002] Polybutene (Polybutene, PB) is a high molecular inert polymer, born in the 1970s, PB resin is a polymer complex synthesized by 1-butene, it has high temperature resistance, durability, chemical Stability and plasticity, tasteless, non-toxic, odorless, the temperature range is -30 ℃ to 100 ℃, with cold resistance, heat resistance, pressure resistance, no rust, no corrosion, no scaling, long life (up to 50 ~100 years), and has the characteristics of long-term aging resistance, it is one of the most advanced chemical materials in the world. It is widely used in many countries in the world. Isotactic polybutene-1 (i-PB) has the reputation of "gold in plastics". [0003] However, at present, domestic polybutene is less industrialized, and there are few reports about i-PB. The aggregate structure of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/20C08L23/08C08L23/16C08K13/06C08K3/34C08K9/04C08K3/26B29C47/92B29C48/92
CPCB29C48/92B29C2948/92514B29C2948/92561B29C2948/92704C08J3/226C08J2323/20C08J2423/20C08K2201/011C08L23/20C08L2205/025C08L2205/03C08L23/0815C08K13/06C08K9/04C08K3/346C08K3/34C08L23/16C08K2003/265C08K3/22
Inventor 陆春华陆培芳
Owner SUZHOU EXCELLENCE ENG PLASTICS
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