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A cross-linked weather-resistant polyolefin composition suitable for machine processing of adhesive tape, adhesive cloth made of the same, and method for manufacturing the adhesive cloth

A technology of polyolefin and composition, which is applied in the field of cross-linked weather-resistant polyolefin plastic tape and its preparation method, can solve the problems of inability to uniformly extrude cross-linked polyolefin tape, affecting the quality of cross-linked polyolefin film, cross-linked polyolefin Solve the coking problem of olefin tape and other problems, and achieve the effects of low processing cost, excellent film surface quality, good heat resistance and weather resistance

Inactive Publication Date: 2015-10-28
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For example, U.S. Patent No. 6,187,847 and U.S. Patent No. 6,656,986 both use an extrusion mechanism to crosslink polyolefin tapes. During the processing of the extruder, the processing temperature in the mixing stage must be kept very low, otherwise the processing temperature will be high At the decomposition temperature of the peroxide, it will cause some polyolefins to form cross-links too early, which will lead to the coking problem of the cross-linked polyolefin tape made or the accumulation of a large amount of insoluble matter (or crystal point), and affect the cross-linking. The quality of the film surface of the polyolefin film, on the contrary, if the processing temperature in the mixing stage is too low, it will cause poor gelation of the cross-linked polyolefin resin, and the cross-linked polyolefin tape cannot be uniformly extruded

Method used

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  • A cross-linked weather-resistant polyolefin composition suitable for machine processing of adhesive tape, adhesive cloth made of the same, and method for manufacturing the adhesive cloth
  • A cross-linked weather-resistant polyolefin composition suitable for machine processing of adhesive tape, adhesive cloth made of the same, and method for manufacturing the adhesive cloth

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The cross-linked weather-resistant polyolefin tape with a thickness of 0.10mm (hereinafter referred to as cross-linked polyolefin tape) is produced according to the following method:

[0075] 1. prepare comprehensive mixture according to the embodiment 1 formula of table 1, micron TiO 2 The content is 10PHR.

[0076] 2. According to the formula of Example 1 in Table 1, polyolefin mixture resin (wherein the VA content of EVA is 8~33%), comprehensive mixture, lubricant, auxiliary agent (comprising cross-linking auxiliary agent of 0.1PHR, 0.1PHR Antioxidant, 0.3PHR UV absorber and 0.5PHR filler) and other raw materials are mixed evenly with a mixer, and then introduced into the kneader for uniform mixing and gelation. At the decomposition temperature of organic peroxide;

[0077] 3. Then, it is introduced into the rolling machine again, and the temperature of the material is controlled at 150°C to 220°C. After sufficient cross-linking, the mixed material is introduced in...

Embodiment 2

[0080] 1. According to the embodiment 2 formula of table 1, prepare comprehensive mixture, micron TiO 2 The content is 10PHR.

[0081] 2. with the preparation method of embodiment 1, the cross-linked polyolefin adhesive plaster of 0.1mm thickness is made into the cross-linked polyolefin adhesive plaster of 0.1mm thickness with the use of cross-linking auxiliary agent in table 1 as the embodiment 2 formula of 0.1PHR, and its degree of cross-linking is 9%, and the tensile strength is 145.7kg / cm 2 And the tear strength is 89kg / cm 2 ; After 2000h of QUV irradiation, the tensile strength can maintain 44.7%, and the tear strength can maintain 44.9%.

Embodiment 3

[0083] 1. according to the embodiment 3 prescription of table 1, prepare comprehensive mixture, micron TiO 2 The content is 10PHR.

[0084] 2. with the preparation method of embodiment 1, the cross-linked polyolefin adhesive plaster of 0.1mm thickness is made into the cross-linked polyolefin adhesive plaster of 0.1mm thickness with the use of cross-linking auxiliary agent in table 1 as the embodiment 3 formula of 0.5PHR, and its degree of cross-linking is 11.8%, and the tensile strength is 152.2kg / cm 2 , and the tear strength is 91kg / cm 2 ; After 2000 hours of QUV irradiation, the tensile strength can maintain 46.7%, and the tear strength can maintain 45.2%.

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Abstract

The invention provides a crosslinking weather resistance polyolefin composite which is characterized in that the composition comprises a synthetic mixture A, polyolefin resin, a crosslinking agent and other various additives, wherein the synthetic mixture A is mixed and prepared by the crosslinking agent, an antistatic agent, nanoscale TiO2 and micron-sized TiO2; the crosslinking weather resistance polyolefin composite is applicable to manufacturing the crosslinking weather resistance polyolefin adhesive tape by adhesive tape machine processing; the capacity is improved and furthermore the manufactured adhesive tape keeps the existing physical properties of raw polyolefin and has weather resistance and good mechanical strength.

Description

technical field [0001] The invention relates to a cross-linked weather-resistant polyolefin composition, in particular to a cross-linked weather-resistant polyolefin plastic tape formed by calendering through a tape machine and a preparation method thereof. Background technique [0002] In the prior art, generally commercially available polyolefin films, polyethylene (PE) tapes or ethylene-vinyl acetate copolymer (EVA) tapes all have the disadvantages of poor heat resistance and weather resistance. Most of the weather-resistant tapes used outdoors are made of polyvinyl chloride (PVC), but the burning of PVC will produce pollutants such as dioxin, which has a great impact on the environment and ecology. [0003] In order to improve the performance of polyolefins, chemical or physical cross-linking methods are usually used to form covalent bonds between linear or branched polyolefin molecular chains. After changing the original linear polyolefin into a network structure, it ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/12C08L23/08C08K13/02C08K3/22C08K5/14C09J123/06C09J123/12C09J123/08C09J11/04C09J11/06C09J7/00B29C43/58B29C43/24
Inventor 冯殿润黄英德林昭贤袁敬尧陈再兴
Owner NANYA PLASTICS CORP
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