Preparation of functional composite material polyvinylhalogenides resin

A vinyl halide and manufacturing method technology, applied in the field of polyvinyl halide resin, can solve problems such as difficult processing and limited application range, and achieve the effects of low flow marks, high melt strength, and low turbidity

Inactive Publication Date: 2009-03-04
FORMOSA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although polyvinyl chloride resin has excellent physical and chemical properties, the potential physical defects of the resin itself make it difficult to process, and it is necessary to use a very high processing temperature, because the higher processing temperature is close to its cracking temperature , to promote the risk of deterioration, t

Method used

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  • Preparation of functional composite material polyvinylhalogenides resin
  • Preparation of functional composite material polyvinylhalogenides resin
  • Preparation of functional composite material polyvinylhalogenides resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In the 200-liter polymerization tank, add 70 kg of deionized water, add 56 grams of polyvinyl alcohol dispersant (hydrolysis degree 78mol%), lock the tank cover, vacuumize to -740mmHg, keep for 10 minutes, add 70 kg of chlorine Ethylene monomer and peroxide catalyst BND0.56g, heat up to 64°C for reaction, after 90 minutes of reaction, add methyl methacrylate (MMA) and butyl acrylate (BA) monomers continuously The injection time of the mixed liquid is 30 minutes, and the polymerization reaction is continued for 3 hours after the completion of the reaction, and the sample powder is taken after the reaction is completed. Wherein the ratio of the mixed solution added continuously is 140 grams of MMA and 28 grams of BA.

Embodiment 2

[0032] In the 200-liter polymerization tank, add 70 kg of deionized water, 56 grams of polyvinyl alcohol dispersant (degree of hydrolysis 78 mol%), 140 grams of MMA monomer, 28 grams of BA monomer, then lock the tank cover and vacuumize To -740mmHg, keep it for 10 minutes, add 70kg of vinyl chloride monomer and 0.56g of peroxide catalyst BND, raise the temperature to 64°C to carry out polymerization reaction until 5 hours after the reaction is over, take sample powder.

[0033] After the polyvinyl chloride resin polymerization is completed, the sample powder is taken and the dried powder is subjected to the following physical tests:

[0034] 1. Roll test:

Embodiment

[0035] Example formula: 100 parts of PVC (K=60), 1.1 parts of organotin stabilizer, 0.6 parts of slip agent, operating temperature of 190° C., time of 3 minutes, thickness of pumping sheet 0.3 mm.

[0036] Comparative example formula: 100 parts of PVC (K=60), 1.1 parts of organotin stabilizer, 1.2 parts of processing aid, 0.6 parts of slip agent, operating temperature of 190° C., time of 3 minutes, thickness of pumping sheet 0.3 mm.

[0037] 2. Gelation test:

[0038] Example formula: 100 parts of PVC (K=60), 1.1 parts of organotin stabilizer, 0.6 parts of lubricant, plastic spectrometer HAAKE BUCHLER SYSTEM 40, temperature setting 140°C, rotation speed 45rpm.

[0039] Comparative example formula: 100 parts of PVC (K=60), 1.1 parts of organotin stabilizer, 1.2 parts of processing aid, 0.6 parts of slip agent, plastic spectrometer HAAKE BUCHLER SYSTEM 40, temperature setting 140°C, rotation speed 45rpm.

[0040] 3. Air spot and flow mark test on the slice:

[0041] Example fo...

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Abstract

The invention provides a functional composite material poly ethylene halide resin, which is prepared by the solution method, the block polymerization method or the suspension polymerization method. The poly ethylene halide resin is prepared through the following steps: (1) providing ethylene halide monomer or multiple polymerization monomers mainly including ethylene halide monomer 90.0 to 99.9 wt% of total composition; and (2) sectionally adding or adding at a time multiple alkyl acrylate monomer or alkyl acrylate/acrylic polymer emulsion/dried substance 10.0 to 0.1 wt% of total composition, and carrying out copolymerization or graft polymerization reaction, wherein the polymerization monomer (ethylene halide monomer or multiple polymerization monomers mainly including ethylene halide monomer) is added in bath or sectionally continuous added, and the multiple alkyl acrylate monomer or alkyl acrylate/acrylic polymer emulsion/dried substance is continuously added during reaction process or is placed into a coincidence tank before reaction.

Description

technical field [0001] The present invention relates to a functional polyvinyl halide resin (vinyl halidepolymer), in particular to providing a resin that can be processed without adding processing aids and has excellent process gelling properties during processing A method for producing a functional composite material polyvinyl halide resin composition with high characteristics such as high lubricity and melt strength. Background technique [0002] In recent years, the processing technology of polyvinyl chloride resin powder has changed with each passing day to make the processed products have higher quality, such as high transparency or high mechanical processing products. In order to make polyvinyl chloride resin powder have better quality, generally speaking, that is to make polyvinyl chloride resin powder have good gelatinization, this has been the goal pursued by many polyvinyl chloride resin manufacturers. Modified polyvinyl chloride resin powder can provide a good o...

Claims

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Application Information

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IPC IPC(8): C08F214/06C08F265/06C08F2/00
Inventor 林振荣陈光明洪万墩郭明滨苏德萱陈玉振陈俊嘉黄铭川
Owner FORMOSA PLASTICS CORP
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