PVC resin composition and product thereof

A technology of PVC resin and composition, applied in the field of PVC resin composition, can solve the problems such as the decline of mechanical properties

Inactive Publication Date: 2009-08-05
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of adding a large amount of inorganic powder to PVC resin is that the mechanical properties of PVC products made of PVC resin are greatly reduced, especially in terms of tensile strength and elongation.

Method used

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  • PVC resin composition and product thereof
  • PVC resin composition and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The PVC resin (average degree of polymerization 1000) of 100 parts by weight, the calcium-zinc type stabilizer of 0.5 parts by weight, the trioctyl trimellitate (TOTM) plasticizer of 20 parts by weight, the polyethylene wax lubrication of 0.2 parts by weight agent, 25 parts by weight of chlorinated polyethylene elastomer toughening agent, an appropriate amount of inorganic powder (including 100 parts by weight of aluminum hydroxide, 5 parts by weight of zinc borate, 5 parts by weight of molybdenum trioxide and 2 parts by weight of Montmorillonite), 2 weight parts of vinyltrimethoxysilane coupling agent, 0.1 weight part of dicumyl peroxide initiator, put into vertical mixer together and carry out stirring and mixing at room temperature under the condition of 60rpm * 10min, After mixing, put it into the kneader for gelation under the condition of tank temperature 160℃×45rpm×25min. After the gelation is completed, take out the gelled material from the kneader, and then send...

Embodiment 2

[0040] PVC resin composition is the same as embodiment 1, but the chlorinated polyethylene elastomer toughening agent of 25 parts by weight in the composition of embodiment 1, inorganic powder (comprising the aluminum hydroxide of 100 parts by weight, the zinc borate of 5 parts by weight, 5 parts by weight The molybdenum trioxide of weight part and the montmorillonite of 2 weight parts), the vinyltrimethoxysilane coupling agent of 2 weight parts, the dicumyl peroxide initiator of 0.1 weight part, then carry out mixing, gelatinization in advance , and make masterbatches according to the production conditions in Table 1.

[0041] The prepared masterbatch is dropped into the PVC resin (average degree of polymerization 1000) of 100 weight parts in proportion, the calcium-zinc type stabilizer of 0.5 weight part, the trioctyl trimellitate (TOTM) plasticizing of 20 weight parts Agent and 0.2 parts by weight of polyethylene wax lubricant, then through mixing, gelation and according to...

Embodiment 3

[0044] Except not adding dicumyl peroxide initiator, PVC resin composition and preparation conditions are the same as embodiment 1.

[0045] The properties of the obtained PVC resin composition were measured, and the results are shown in Table 1 in detail.

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Abstract

The invention relates to a PVC resin compound and a product thereof, in particular to a PVC resin compound with characteristics of high inflaming retarding and low smoke formation. The PVC resin compound is prepared by mixing PVC resin, inorganic powder, accessory ingredient, toughener, coupling agent and evocating agent according to a certain proportion, wherein the evocating agent is used together with the coupling agent so as to enhance the associative property of the inorganic powder inside the PVC resin compound. The PVC product made by the PVC resin compound has favorable tensile strength and tensile stretch, and has the characteristics of high inflaming retarding and low smoke formation.

Description

technical field [0001] The invention relates to a PVC resin composition, especially a resin composition with high flame retardancy and low smoke generation, and the PVC products made from it have both excellent tensile strength and elongation. Background technique [0002] The chlorine content of the PVC resin reaches 56%, and the critical oxygen index (LimitOxygen Index; LOI) indicating the flame retardancy of the material is 45. This condition contributes to the flame retardancy of the PVC resin itself. However, when PVC resin is actually used, a considerable proportion of plasticizers and other auxiliary agents need to be added, and the added plasticizers and auxiliary agents will reduce the overall chlorine content and flame retardancy of PVC resin. [0003] In order to solve the above problems, the existing technology is to add bromine or phosphorus organic flame retardants or flame retardant plasticizers, and then use antimony compounds (for example: antimony trioxide)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K9/04C08K5/14C08K5/23C08K3/00
Inventor 冯殿润廖德超王士贤
Owner NANYA PLASTICS CORP
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