A kind of low VOC toughened porcelain white flame retardant PC and preparation method thereof

A toughening, porcelain white technology, applied in the field of low VOC toughening porcelain white flame retardant PC and its preparation, can solve problems such as environmental hazards, and achieve the effects of reducing shrinkage, reducing VOC content, and improving surface gloss

Active Publication Date: 2022-02-15
NINGBO ZHETIE DAPHOON CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although halogen-containing and phosphorus-containing organic compounds have good flame retardant properties, because halogen-containing and phosphorus-containing organic compounds will cause harm to the environment, silicone flame retardants that are more environmentally friendly are used as PC flame retardants. more and more attention

Method used

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  • A kind of low VOC toughened porcelain white flame retardant PC and preparation method thereof
  • A kind of low VOC toughened porcelain white flame retardant PC and preparation method thereof
  • A kind of low VOC toughened porcelain white flame retardant PC and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0036] Preparation Example 1: Get 40kg of talcum powder, grind it to obtain fine talcum powder with a fineness of 3000 mesh; get 10kg of wollastonite, grind it to obtain wollastonite powder with a fineness of 1000 mesh; mix fine talcum powder with silica fume After the stone powder is mixed evenly, a mixture is obtained; add 1kg of silane coupling agent KH550 to the mixture, stir at 60°C for 0.5h, and dry at 120°C for 1h to obtain a silicate mixture.

preparation example 2

[0037] Preparation Example 2: Get 55kg of talcum powder, grind it to obtain a fineness of 7000 mesh talcum powder; get 25kg of wollastonite, grind it to obtain a fineness of 3000 mesh wollastonite powder; After the stone powder is mixed evenly, a mixture is obtained; add 1.25kg of silane coupling agent KH550 to the mixture, stir at 70°C for 0.8h, and dry at 120°C for 1h to obtain a silicate mixture.

preparation example 3

[0038] Preparation Example 3: Get 70kg of talcum powder, grind it to obtain fine talcum powder with a fineness of 10,000 mesh; get 40kg of wollastonite, grind it to obtain wollastonite powder with a fineness of 5,000 mesh; After the stone powder is mixed evenly, a mixture is obtained; 1.5kg of silane coupling agent KH550 is added to the mixture, stirred at 80°C for 1 hour, and dried at 120°C for 1 hour to obtain a silicate mixture.

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Abstract

The invention discloses a low-VOC toughened porcelain white flame-retardant PC and a preparation method thereof, belonging to the technical field of polymer materials. A low-VOC toughened porcelain white flame-retardant PC contains the following components in parts by weight: PC resin 100 1-4 parts of toughening agent, 1.5-4 parts of silicone flame retardant, 2-4 parts of titanium dioxide, 0.3-0.6 parts of compound antioxidant, 5-10 parts of silicate mixture, 0.1-0 parts of lubricant 0.3 part and 0.5-1 part of odor absorbent; the silicate mixture is formed by mixing talcum powder and wollastonite. The PC material prepared by the invention has good flame retardancy and mechanical properties, low odor and good surface gloss, and is suitable for electronic and electrical materials such as wall switches and telecommunication boxes.

Description

technical field [0001] The invention relates to the technical field of polymer materials, more specifically, it relates to a low-VOC toughened porcelain white flame-retardant PC and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is a highly transparent colorless or slightly yellow thermoplastic engineering plastic with excellent physical and mechanical properties, impact strength, tensile strength, bending strength, compressive strength, good heat resistance and dimensional stability . PC is currently one of the most widely used thermoplastic engineering plastics, especially in the fields of electronic appliances (such as televisions, computers), auto parts and building materials, etc. PC itself has a certain flame retardant performance (UL94 is V -2 level, LOI value is about 25%), but it cannot meet the use in occasions with high requirements for flame retardancy, so it must be modified to improve its thermal stability and flame retardancy. ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08L69/00C08L51/08C08K13/06C08K9/06C08K3/34C08K3/22C08K5/134
CPCC08L69/00C08L2201/02C08L2201/08C08K2003/2241C08K2201/014C08K2201/005C08L51/08C08K13/06C08K9/06C08K3/34C08K3/22C08K5/1345
Inventor邱琪浩应杰罗锐顾亥楠周卓骏章兴叶素芳施懿军
OwnerNINGBO ZHETIE DAPHOON CHEM