Room-temperature silane cross-linked polyolefin and its preparation method

A technology of silane cross-linking and polyolefin, which is applied in the field of silane cross-linking polyolefin and its preparation, low-voltage (10KV) and below wire and cable sheathing materials, which can solve the problems that cannot meet the needs of wire and cable sheathing materials, and achieve a wide range of applications , easy to process, obvious flame retardant effect

Inactive Publication Date: 2013-05-08
上海驰程化工工贸有限公司
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this cable material is mainly used to prepare wire and cable insulation materials, and cann...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Room-temperature silane cross-linked polyolefin and its preparation method
  • Room-temperature silane cross-linked polyolefin and its preparation method
  • Room-temperature silane cross-linked polyolefin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In embodiment 1, flame retardant filler is magnesium hydroxide, and in embodiment 2, flame retardant filler is magnesium hydroxide and aluminum hydroxide 4: 1 mixture, and in embodiment 3, flame retardant filler is magnesium hydroxide, In Example 4, the flame retardant filler is magnesium hydroxide.

[0045] In Example 1, the filler is a 1:1 mixture of talc powder and clay. In Example 2, the filler is calcium carbonate. In Example 3, the filler is calcined clay. In Example 4, the filler is calcined clay.

[0046] In Example 1, the softener is polyethylene wax 110; in Example 2, the softener is HighFlow; in Example 3, the softener is HighFlow; in Example 4, the softener is HighFlow.

[0047] In Example 1, the antioxidant is 264, in Example 2, the antioxidant is 1010, in Example 3, the antioxidant is 1010, and in Example 4, the antioxidant is 1010.

[0048] In embodiment 1, catalyzer is di-n-octyltin dilaurate, in embodiment 2, catalyzer is dibutyltin dilaurate, in embod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a room-temperature silane cross-linked polyolefin and its preparation method. The preparation method comprises the following steps: mixing polyolefin in a 80-100DEG C open mill, rolling, sequentially adding a flame retardant filler, a filler, a softener and an antioxidant, mixing for 5-15min, adding a catalyst, mixing for 2-6min, and taking down to obtain a material A; mixing polyolefin in a 60-90DEG C open mill, rolling, sequentially adding a filler, an antioxidant and a water bringing agent, mixing for 5-15min, adding a silane coupling agent/silane absorbent mixture, mixing for 2-5min, and taking down to obtain a material B; and uniformly mixing the catalyst material A with the base material B according to a weight ratio of 95:4-6 at 60-90DEG C, mixing for 4-8min for tabletting, tabletting with a press vulcanizer at 165-175DEG C for 10-20min, and disposing the prepared sample at normal temperature for 24-120h to obtain the silane cross-linked polyolefin. The preparation method has the advantages of omitting of a water boiling cross-linking or water vapor bath cross-linking link, technology simplification and cost reduction, and a wire and cable sheath material prepared through using the silane cross-linked polyolefin has the advantages of good elasticity and flexibility, good flame retardation effect, and strong heat resistance and ageing resistance.

Description

technical field [0001] The invention relates to a cross-linked polyolefin and its preparation method, in particular to a silane cross-linked polyolefin cross-linked under natural conditions without boiling or water vapor and its preparation method, mainly for low-voltage (10KV) And the following wire and cable sheathing materials. Background technique [0002] Three crosslinking techniques are commonly used for crosslinking polyolefin polymers: peroxide crosslinking, radiation crosslinking and silane crosslinking. Silane crosslinking uses silane as a crosslinking agent to complete the crosslinking of polyolefin polymers through two processes of grafting and crosslinking. [0003] The traditional preparation methods of silane crosslinked polyolefins all require water boiling or water steam bath crosslinking process, which consumes a lot of energy. At present, many manufacturers have begun to develop polyolefin materials that can be cross-linked under natural conditions. In...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L23/00C08L31/04C08K13/02C08K3/22C08K3/34C08K3/36C08K5/5425C08K5/09C08J3/24
Inventor 曹德明王庆罗安帮
Owner 上海驰程化工工贸有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap