Hybrid Organosilicon Elastomer Processing Mobility via Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional organic silicon thermoplastic elastomers have limited processing mobility and cannot be repeatedly processed due to their stable chemical bonds, and blends with other macromolecular materials often result in separation phenomena, leading to loss of use value.
Innovation Solution
A hybrid organic silicon thermoplastic elastomer is developed with a novel structure, prepared using a main body polymer system of organopolysiloxane with functionalized ends, reacting with compounds containing isocyanate and amino groups, and a branched compound with epoxy radicals, allowing for ring-opening reactions and adjusting branching degree and softening temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If linear copolymer structure is used, then chemical cross-linking stability is improved, but processing mobility deteriorates
Solution Approach 1:
The patent segments the macromolecular chain into linear segments and branched segments. The linear segments provide stable chemical cross-linking through rigid polyurea structures, while the branched segments (introduced via epoxy-containing branched compounds) provide processing mobility. This segmentation allows both contradictory requirements to be satisfied simultaneously.
Solution Approach 2:
The patent creates a composite elastomer system combining linear organic silicon-polyurea segments with branched macromolecular chains. The linear segments contribute chemical stability and cross-linking, while the branched segments contribute processing mobility, forming a composite material that integrates the benefits of both structures.
2Reliability
If organic silicon materials are blended with other macromolecular materials, then property enhancement is improved, but separation phenomenon worsens
Solution Approach 1:
Instead of blending separate macromolecular materials, the patent merges different macromolecular chains at the molecular level by incorporating epoxy-containing branched compounds into the organic silicon polymer system. This creates a unified hybrid elastomer where organic silicon chains and other macromolecular chains coexist in molecular-scale integration, eliminating separation phenomena while maintaining enhanced properties.
Solution Approach 2:
The patent creates a composite hybrid elastomer where organic silicon polymer base stock is chemically integrated with other macromolecular chains through epoxy-containing branched compounds. This composite structure ensures molecular-level compatibility and prevents phase separation while achieving property enhancement.
3Strength
If rigid polyurea structure is used, then physical properties are improved, but softening temperature increases
Solution Approach 1:
The patent applies local quality by distributing rigid polyurea structures locally within the macromolecular chains rather than throughout the entire structure. The rigid segments provide enhanced physical properties at specific locations, while the overall branched structure maintains lower softening temperature and better processing mobility.
Solution Approach 2:
The patent changes the structural parameters of the elastomer by introducing branched macromolecular chains with epoxy groups. This structural parameter change allows the material to maintain rigid polyurea segments for physical property enhancement while the branched architecture reduces overall softening temperature and improves processing characteristics.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hybrid elastomer exhibits improved processing mobility, adjustable softening temperature, and enhanced physical properties, enabling repeated processing and wider application fields such as adhesives and encapsulating materials.
Implementation Method 1
prepared using a main body polymer system of organopolysiloxane with functionalized ends, reacting with compounds containing isocyanate and amino groups
Implementation Method 2
a branched compound with epoxy radicals, allowing for ring-opening reactions and adjusting branching degree and softening temperature
Implementation Method 3
the rigid polyurea structure forms physical cross-linking points by the effect of hydrogen bonds between molecules
Data Source
AI summary
The present invention discloses a hybrid organic silicon thermoplastic elastomer and a preparation method thereof. The copolymer, namely the elastomer, has a structural formula as shown in formula I. In the preparation method, the preparation proceeds in a solution or main body polymerization system through organopolysiloxane with two functionalized ends, a compound with a structural formula of OCN—Y—NCO, a branched compound with a structural formula ofand a compound with a structural formula of NH2—Z—NH2, which can be added or not. The softening temperature of the copolymer is in a range of 40° C.˜190° C., and the present invention has high processing mobility.